Annotation of loncom/homework/structuretags.pm, revision 1.512.2.24.2.14
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.512.2.24.2. 4(raebur 4:4): # $Id: structuretags.pm,v 1.512.2.24.2.13 2024/02/28 00:19:04 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();
1.512.2.24.2. (raeburn 65:): use Apache::lonnavmaps;
1.267 albertel 66: use Time::HiRes qw( gettimeofday tv_interval );
1.512.2.24 raeburn 67: use HTML::Entities();
1.356 www 68: use lib '/home/httpd/lib/perl/';
69: use LONCAPA;
70:
1.78 harris41 71: BEGIN {
1.469 www 72: &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 73: }
74:
1.500 foxr 75:
76: #---------------------------------------------------------------------------------
77: #
78: # This section of code deals with hyphenation management.
79: # We must do three things:
80: # - keep track fo the desired languages to alter the header.
81: # - provide hyphenation selection as needed by each language that appears in the
82: # text.
83: # - Provide the header text needed to make available the desired hyphenations.
84: #
85: #
86:
87: # Hash whose keys are the languages encountered in the document/resource.
88: #
89:
90: my %languages_required;
91: ##
92: # Given a language selection as input returns a chunk of LaTeX that
93: # selects the required hyphenator.
94: #
95: # @param language - the language being selected.
96: # @return string
97: # @retval The LaTeX needed to select the hyphenation appropriate to the language.
98: #
99: sub select_hyphenation {
100: my $language = shift;
101:
102: $language = &Apache::loncommon::latexlanguage($language); # Translate -> latex language.
103:
104: # If there is no latex language there's not much we can do:
105:
106: if ($language) {
107: &require_language($language);
108: my $babel_hyphenation = "\\selectlanguage{$language}";
109:
110: return $babel_hyphenation;
111: } else {
112: return '';
113: }
114: }
115: ##
116: # Selects hyphenation based on the current problem metadata.
117: # This requires that
118: # - There is a language metadata item set for the problem.
119: # - The language has a latex/babel hyphenation.
120: #
121: # @note: Uses &Apache::lonxml::request to locate the Uri associated with
122: # this problem.
123: # @return string (possibly empty).
124: # @retval If not empty an appropriate \selectlanguage{} directive.
125: #
126: sub select_metadata_hyphenation {
127: my $uri = $Apache::lonxml::request->uri;
128: my $language = &Apache::lonnet::metadata($uri, 'language');
129: my $latex_language = &Apache::loncommon::latexhyphenation($language);
130: if ($latex_language) {
131: return '\selectlanguage{'.$latex_language."}\n";
132: }
133: return ''; # no latex hyphenation or no lang metadata.
134: }
135:
136:
137: ##
138: # Clears the set of languages required by the document being rendered.
139: #
140: sub clear_required_languages {
141: %languages_required = ();
142: }
143: ##
144: # Allows an external client of this module to register a need for a language:
145: #
146: # @param LaTeX language required:
147: #
148: sub require_language {
149: my $language = shift;
150: $languages_required{$language} = 1;
151: }
152:
153: ##
154: # Provides the header for babel that indicates the languages
155: # the document requires.
156: # @return string
157: # @retval \usepackage[lang1,lang2...]{babel}
158: # @retval '' if there are no languages_required.
159: sub languages_header {
160: my $header ='';
161: my @languages = (keys(%languages_required));
162:
163: # Only generate the header if there are languages:
164:
165: if (scalar @languages) {
166: my $language_list = join(',', (@languages));
167: $header = '\usepackage['.$language_list."]{babel}\n";
168: }
169: return $header;
170: }
171:
172: #----------------------------------------------------------------------------------
173:
1.10 albertel 174: sub start_web {
1.326 albertel 175: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 176: if ($target ne 'edit' && $target ne 'modified') {
177: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
178: if ($target eq 'web' || $target eq 'webgrade') {
179: return $bodytext;
180: }
181: } elsif ($target eq "edit" ) {
182: my $bodytext =
183: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
184: my $result = &Apache::edit::tag_start($target,$token);
185: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
186: return $result;
187: } elsif ( $target eq "modified" ) {
188: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 189: }
190: return '';
1.10 albertel 191: }
192:
193: sub end_web {
1.44 ng 194: return '';
1.10 albertel 195: }
196:
197: sub start_tex {
1.326 albertel 198: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 199: my $result='';
1.383 albertel 200: if ($target ne 'edit' && $target ne 'modified') {
201: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
202: if ($target eq 'tex') {
1.434 foxr 203:
204: # If inside a table, occurrences of \\ must be removed;
205: # else the table blows up.
206:
207: if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
208: $bodytext =~ s/\\\\//g;
209: }
1.432 foxr 210: return $bodytext.'{}';
1.383 albertel 211: }
212: } elsif ($target eq "edit" ) {
213: my $bodytext =
214: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
215: my $result = &Apache::edit::tag_start($target,$token);
216: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
217: return $result;
218: } elsif ( $target eq "modified" ) {
219: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 220: }
1.198 sakharuk 221: return $result;;
1.10 albertel 222: }
223:
224: sub end_tex {
1.44 ng 225: return '';
1.9 albertel 226: }
227:
1.400 albertel 228: sub homework_js {
1.512.2.9 raeburn 229: my ($postsubmit,$timeout);
230: if (($env{'request.course.id'}) && ($env{'request.state'} ne 'construct')) {
231: my $crstype;
232: if (&Apache::loncommon::course_type() eq 'Community') {
233: $crstype = 'community';
234: } else {
235: if ($env{'course.'.$env{'request.course.id'}.'.internal.coursecode'}) {
236: $crstype = 'official';
237: } elsif ($env{'course.'.$env{'request.course.id'}.'.internal.textbook'}) {
238: $crstype = 'textbook';
239: } else {
240: $crstype = 'unofficial';
241: }
242: }
243: $postsubmit = $env{'course.'.$env{'request.course.id'}.'.internal.postsubmit'};
244: if ($postsubmit eq '') {
245: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
246: $postsubmit = $domdefs{'postsubmit'};
247: unless ($postsubmit eq 'off') {
248: $timeout = $domdefs{$crstype.'postsubtimeout'};
249: }
250: } elsif ($postsubmit eq '0') {
251: $postsubmit = 'off';
252: } elsif ($postsubmit eq '1') {
253: $postsubmit = 'on';
254: $timeout = $env{'course.'.$env{'request.course.id'}.'.internal.postsubtimeout'};
255: if ($timeout eq '') {
256: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
257: $timeout = $domdefs{$crstype.'postsubtimeout'};
258: }
259: }
260: if ($timeout eq '') {
261: $timeout = 60;
262: }
263: } else {
264: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'request.role.domain'});
265: $postsubmit = $domdefs{'postsubmit'};
266: unless ($postsubmit eq 'off') {
267: $timeout = 60;
268: }
269: }
270: my $jstimeout = 0;
271: if ($timeout) {
272: $jstimeout = 1000 * $timeout;
273: }
1.400 albertel 274: return &Apache::loncommon::resize_textarea_js().
1.512.2.11 raeburn 275: &Apache::loncommon::colorfuleditor_js().
1.512.2.24.2. (raeburn 276:): &Apache::lonxml::setmode_javascript().
1.512.2.9 raeburn 277: <<"JS";
1.400 albertel 278: <script type="text/javascript">
1.483 raeburn 279: // <![CDATA[
1.494 raeburn 280: function setSubmittedPart (part,prefix) {
281: if (typeof(prefix) == 'undefined') {
282: this.document.lonhomework.submitted.value="part_"+part;
283: } else {
284: for (var i=0;i<this.document.lonhomework.elements.length;i++) {
285: if (this.document.lonhomework.elements[i].name == prefix+'submitted') {
286: this.document.lonhomework.elements[i].value="part_"+part;
287: }
288: }
289: }
1.400 albertel 290: }
291:
1.512.2.9 raeburn 292: function disableAutoComplete (id) {
293: var field = document.getElementById(id);
294: if (field != null && field != undefined){
295: if ('autocomplete' in field) {
296: field.autocomplete = "off";
297: } else {
298: field.setAttribute("autocomplete", "off");
299: }
300: }
301: }
302:
1.400 albertel 303: function image_response_click (which, e) {
304: init_geometry();
305: if (!e) { e = window.event; } //IE
306: var input_element = document.lonhomework.elements[which];
1.401 albertel 307: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 308: var token = token_element.value;
1.401 albertel 309: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 310: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
311: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
312: var click = x+':'+y;
313: input_element.value = click;
1.485 raeburn 314: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
1.400 albertel 315: }
1.512.2.9 raeburn 316:
317: var submithandled = 0;
318: var keypresshandled = 0;
319: var postsubmit = '$postsubmit';
320:
321: \$(document).ready(function(){
322: if (postsubmit != 'off') {
323: \$(document).keypress(function(event){
324: var keycode = (event.keyCode ? event.keyCode : event.which);
325: if ((keycode == '13') && (keypresshandled == 0)) {
326: if ( \$( document.activeElement ).hasClass("LC_textline") ) {
327: keypresshandled = 1;
328: var idsArray = \$( document.activeElement ).attr("id").split(/HWVAL_/);
329: if (idsArray.length) {
330: event.preventDefault();
331: var itemsArray = idsArray[1].split(/_/);
332: var buttonId = idsArray[0]+'submit_'+itemsArray[0];
333: \$("#"+buttonId).trigger("click");
334: }
335: }
336: }
337: });
338:
339: \$(document).delegate('form :submit', 'click', function( event ) {
340: if ( \$( this ).hasClass( "LC_hwk_submit" ) ) {
341: var buttonId = this.id;
342: var timeout = $jstimeout;
343: if (submithandled == 0) {
344: submithandled = 1;
345: \$( "#msg_"+buttonId ).css({"display": "inline","background-color": "#87cefa",
346: "color": "black","padding": "2px"}) ;
1.512.2.18 raeburn 347: if (( \$(this.form).attr("id") == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
1.512.2.9 raeburn 348: if (buttonId != "all_submit") {
349: \$( ".LC_status_"+buttonId ).hide();
1.512.2.18 raeburn 350: }
351: if (( "#"+buttonId+"_pressed" ).length) {
352: \$( "#"+buttonId+"_pressed" ).val( "1" );
1.512.2.9 raeburn 353: }
354: } else {
355: \$( ".LC_status_"+buttonId ).hide();
356: }
357: \$(this.form).submit();
358: \$( ".LC_hwk_submit" ).prop( "disabled", true);
359: \$( ".LC_textline" ).prop( "readonly", "readonly");
360: event.preventDefault();
361:
362: if (timeout > 0) {
363: setTimeout(function(){
364: \$( "#msg_"+buttonId ).css({"display": "none"});
1.512.2.18 raeburn 365: if (( \$(this.form).attr("id") == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
366: if (( "#"+buttonId+"_pressed" ).length) {
367: \$( "#"+buttonId+"_pressed" ).val( "" );
1.512.2.9 raeburn 368: }
369: }
370: \$( ".LC_hwk_submit" ).prop( "disabled", false);
371: \$( ".LC_textline" ).prop( "readonly", false);
372: submithandled = 0;
373: keypresshandled = 0;
374: }, timeout);
375: }
376: return true;
377: }
378: }
379: });
380: }
381: });
382:
1.483 raeburn 383: // ]]>
1.400 albertel 384: </script>
385: JS
386: }
387:
1.48 albertel 388: sub page_start {
1.345 albertel 389: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
390: $extra_head)=@_;
1.159 albertel 391: my %found;
1.207 albertel 392: foreach my $taginside (@$tagstack) {
1.159 albertel 393: foreach my $taglookedfor ('html','body','form') {
394: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
395: }
396: }
397:
1.343 albertel 398: if ($target eq 'tex') {
399: return
400: &Apache::londefdef::start_html($target,$token,$tagstack,
401: $parstack,$parser,$safeeval);
402: }
403:
1.474 raeburn 404: $extra_head .= &homework_js().
405: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
406: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
1.512.2.12 raeburn 407: my %textarea_args;
408: if (($env{'request.state'} ne 'construct') ||
1.512.2.24.2. 3(raebur 409:4): (&Apache::loncommon::nocodemirror())) {
1.512.2.12 raeburn 410: %textarea_args = (
1.474 raeburn 411: dragmath => 'math',
412: );
1.512.2.12 raeburn 413: }
1.474 raeburn 414: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 415: }
1.478 raeburn 416: my $is_task = ($env{'request.uri'} =~ /\.task$/);
1.512.2.9 raeburn 417: my ($needs_upload,$partlist);
1.495 raeburn 418: my ($symb)= &Apache::lonnet::whichuser();
419: my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
1.478 raeburn 420: if ($is_task) {
1.495 raeburn 421: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
1.493 raeburn 422: } else {
423: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.uploadedfiletypes") ne '') {
1.495 raeburn 424: unless ($env{'request.state'} eq 'construct') {
425: my $navmap = Apache::lonnavmaps::navmap->new();
426: if (ref($navmap)) {
427: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 428: my $is_page;
429: if (ref($mapres)) {
430: $is_page = $mapres->is_page();
431: }
432: unless ($is_page) {
1.495 raeburn 433: $needs_upload = 1;
434: }
1.512.2.9 raeburn 435: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
436: my $res = $navmap->getBySymb($symb);
437: if (ref($res)) {
438: $partlist = $res->parts();
439: }
440: }
1.495 raeburn 441: }
442: }
1.493 raeburn 443: } else {
444: unless ($env{'request.state'} eq 'construct') {
445: my $navmap = Apache::lonnavmaps::navmap->new();
446: if (ref($navmap)) {
1.495 raeburn 447: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 448: my $is_page;
449: if (ref($mapres)) {
450: $is_page = $mapres->is_page();
451: }
1.512.2.9 raeburn 452: if ($is_page) {
453: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
454: my $res = $navmap->getBySymb($symb);
455: if (ref($res)) {
456: $partlist = $res->parts();
457: }
458: }
459: } else {
1.495 raeburn 460: my $res = $navmap->getBySymb($symb);
461: if (ref($res)) {
1.512.2.9 raeburn 462: $partlist = $res->parts();
1.495 raeburn 463: if (ref($partlist) eq 'ARRAY') {
464: foreach my $part (@{$partlist}) {
465: my @types = $res->responseType($part);
466: my @ids = $res->responseIds($part);
467: for (my $i=0; $i < scalar(@ids); $i++) {
468: if ($types[$i] eq 'essay') {
469: my $partid = $part.'_'.$ids[$i];
470: if (&Apache::lonnet::EXT("resource.$partid.uploadedfiletypes") ne '') {
471: $needs_upload = 1;
472: last;
473: }
1.493 raeburn 474: }
475: }
476: }
1.495 raeburn 477: }
478: }
1.493 raeburn 479: }
480: }
481: }
482: }
1.495 raeburn 483: if ($needs_upload) {
1.512.2.17 raeburn 484: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js().
485: '<script type="text/javascript" '.
486: 'src="/res/adm/includes/file_upload.js"></script>';
1.495 raeburn 487: }
1.478 raeburn 488: }
1.425 raeburn 489:
1.344 albertel 490: my %body_args;
491: if (defined($found{'html'})) {
492: $body_args{'skip_phases'}{'head'}=1;
493: } else {
1.343 albertel 494:
1.345 albertel 495: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 496:
1.379 albertel 497: $extra_head .= &Apache::londefdef::generate_css_links();
498:
1.384 albertel 499: if ($env{'request.state'} eq 'construct') {
1.343 albertel 500: $extra_head.=&Apache::edit::js_change_detection().
501: "<script type=\"text/javascript\">\n".
502: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
503: &Apache::loncommon::browser_and_searcher_javascript().
504: "\n</script>\n";
1.512.2.9 raeburn 505: if ($target eq 'edit') {
506: $extra_head .= &Apache::edit::js_update_linknum();
507: }
1.343 albertel 508: }
1.159 albertel 509: }
1.343 albertel 510:
1.446 bisitz 511: my $pageheader = '';
1.344 albertel 512: if (defined($found{'body'})) {
513: $body_args{'skip_phases'}{'body'}=1;
514: } elsif (!defined($found{'body'})
515: && $env{'request.state'} eq 'construct') {
1.343 albertel 516: if ($target eq 'web' || $target eq 'edit') {
1.512.2.24.2. 4(raebur 517:4): unless ($env{'form.inhibitmenu'} eq 'yes') {
518:4): # Breadcrumbs for Authoring Space
519:4): &Apache::lonhtmlcommon::clear_breadcrumbs();
520:4): &Apache::lonhtmlcommon::add_breadcrumb({
521:4): 'text' => 'Authoring Space',
522:4): 'href' => &Apache::loncommon::authorspace($env{'request.uri'}),
523:4): });
524:4): # breadcrumbs (and tools) will be created
525:4): # in start_page->bodytag->innerregister
1.460 droeschl 526:
1.450 bisitz 527: # FIXME Where are we?
1.512.2.24.2. 4(raebur 528:4): # &Apache::lonhtmlcommon::add_breadcrumb({
529:4): # 'text' => 'Problem Editing', # 'Problem Testing'
530:4): # 'href' => '',
531:4): # });
532:4): $pageheader = &Apache::loncommon::head_subbox(
533:4): &Apache::loncommon::CSTR_pageheader());
534:4): }
535:4): }
1.272 albertel 536: } elsif (!defined($found{'body'})) {
1.343 albertel 537: my %add_entries;
1.159 albertel 538: my $background=&Apache::lonxml::get_param('background',$parstack,
539: $safeeval);
1.343 albertel 540: if ($background ne '' ) {
541: $add_entries{'background'} = $background;
542: }
1.344 albertel 543:
1.290 albertel 544: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
545: $safeeval);
1.446 bisitz 546: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 547:
1.446 bisitz 548: $body_args{'bgcolor'} = $bgcolor;
549: # $body_args{'no_title'} = 1;
550: $body_args{'force_register'} = 1;
551: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 552: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 553: $body_args{'only_body'} = 1;
1.512.2.7 raeburn 554: } elsif ($target eq 'web') {
555: $body_args{'print_suppress'} = 1;
1.446 bisitz 556: }
1.344 albertel 557: }
1.365 albertel 558: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 559: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
560: \%body_args);
1.446 bisitz 561: $page_start .= $pageheader;
1.462 raeburn 562: if (!defined($found{'body'})
563: && $env{'request.state'} ne 'construct'
564: && ($target eq 'web' || $target eq 'webgrade')) {
565:
566: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
567: if ($symb eq '' && !$publicuser) {
568: $page_start .= '<p class="LC_info">'
569: .&mt('Browsing resource, all submissions are temporary.')
570: .'</p>';
1.457 bisitz 571: }
1.344 albertel 572: }
573:
1.409 albertel 574: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 575: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 576: }
577: my $form_tag_start;
578: if (!defined($found{'form'})) {
1.337 albertel 579: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 580: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 581: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 582: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 583: $form_tag_start.=$uri.'" ';
584: if ($target eq 'edit') {
585: $form_tag_start.=&Apache::edit::form_change_detection();
586: }
1.493 raeburn 587: my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
588: my ($path,$multiresp) =
589: &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
1.512.2.24.2. (raeburn 590:): if ($env{'request.user_in_effect'}) {
591:): $form_tag_start .= ' onsubmit="preventDefault();"';
592:): } elsif (($is_task) || ($needs_upload)) {
1.495 raeburn 593: $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
1.478 raeburn 594: }
1.368 albertel 595: $form_tag_start.='>'."\n";
1.355 albertel 596:
597: if ($symb =~ /\S/) {
598: $symb=
599: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
600: $form_tag_start.=
1.368 albertel 601: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 602: }
1.159 albertel 603: }
1.512.2.9 raeburn 604: return ($page_start,$form_tag_start,$partlist);
1.105 albertel 605: }
606:
1.141 matthew 607: #use Time::HiRes();
1.105 albertel 608: sub get_resource_name {
1.159 albertel 609: my ($parstack,$safeeval)=@_;
1.388 foxr 610: my $name;
1.204 albertel 611: if (defined($Apache::lonhomework::name)) {
1.388 foxr 612: $name = $Apache::lonhomework::name;
613: } else {
614: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 615: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 616: if ($name eq '') {
617: $name=&Apache::lonnet::EXT('resource.title');
618: if ($name eq 'con_lost') { $name = ''; }
619: }
620: if ($name!~/\S+/) {
621: $name=$env{'request.uri'};
622: $name=~s-.*/([^/]+)$-$1-;
623: }
624: # The name has had html tags escaped:
625:
626: $name=~s/</</gs;
627: $name=~s/>/>/gs;
628:
629: $Apache::lonhomework::name=$name;
1.204 albertel 630: }
1.159 albertel 631: return $name;
1.105 albertel 632: }
633:
634: sub setup_rndseed {
1.512.2.9 raeburn 635: my ($safeeval,$target,$probpartlist)=@_;
1.367 albertel 636: my ($symb)=&Apache::lonnet::whichuser();
1.512.2.19 raeburn 637: my ($questiontype,$set_safespace,$rndseed,$numtries,$reqtries);
1.479 raeburn 638: if ($target eq 'analyze') {
639: $questiontype = $env{'form.grade_questiontype'};
640: }
641: unless (defined($questiontype)) {
642: $questiontype = $Apache::lonhomework::type;
643: }
1.512.2.19 raeburn 644: if ($Apache::lonhomework::type eq 'randomizetry') {
645: my $partfortries = $Apache::inputtags::part;
1.512.2.22 raeburn 646: #
647: # Where question type is "randomizetry" for a problem containing
648: # a single part (and unless type is explicitly set to not be
649: # "randomizetry" for that part), the number of tries used to
650: # determine randomization will be for that part, and randomization
651: # from calls to &random() in a perl script block before the part tag,
652: # will change based on the number of tries, and value of the
653: # "randomizeontries" parameter in effect for the single part.
654: #
1.512.2.19 raeburn 655: if (ref($probpartlist) eq 'ARRAY') {
1.512.2.22 raeburn 656: if ((@{$probpartlist} == 1) && ($probpartlist->[0] ne $partfortries)) {
657: if (&Apache::lonnet::EXT('resource.'.$probpartlist->[0].'.type') eq 'randomizetry') {
1.512.2.21 raeburn 658: $partfortries = $probpartlist->[0];
659: } else {
660: $partfortries = '';
661: }
1.512.2.19 raeburn 662: }
663: }
1.512.2.21 raeburn 664: if ($partfortries ne '') {
665: $numtries = $Apache::lonhomework::history{"resource.$partfortries.tries"};
666: $reqtries = &Apache::lonnet::EXT("resource.$partfortries.randomizeontries");
667: }
1.512.2.19 raeburn 668: }
1.512.2.24.2. (raeburn 669:): if (($env{'request.state'} eq "construct")
1.512.2.14 raeburn 670: || ($symb eq '')
671: || ($Apache::lonhomework::type eq 'practice')
1.512.2.24.2. (raeburn 672:): || ($Apache::lonhomework::history{'resource.CODE'})
1.512.2.14 raeburn 673: || (($env{'form.code_for_randomlist'}) && ($target eq 'analyze'))) {
1.316 www 674: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 675: ['rndseed']);
1.284 albertel 676: $rndseed=$env{'form.rndseed'};
1.159 albertel 677: if (!$rndseed) {
1.162 albertel 678: $rndseed=$Apache::lonhomework::history{'rndseed'};
679: if (!$rndseed) {
680: $rndseed=time;
681: }
1.512.2.14 raeburn 682: unless ($env{'form.code_for_randomlist'}) {
683: $env{'form.rndseed'}=$rndseed;
684: }
1.162 albertel 685: }
1.512.2.20 raeburn 686: if ((($env{'request.state'} eq "construct") || ($symb eq '')) &&
1.479 raeburn 687: ($Apache::lonhomework::type eq 'randomizetry')) {
1.512.2.19 raeburn 688: if ($numtries) {
689: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
690: my $inc = int($numtries/$reqtries);
691: $rndseed += $inc;
692: } else {
693: $rndseed += $numtries;
694: }
1.479 raeburn 695: }
1.480 raeburn 696: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 697: }
1.512.2.24.2. 3(raebur 698:4): if ( ($env{'form.resetdata'} eq 'new_problem_variation'
1.374 albertel 699: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 700: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 701: srand(time);
702: $rndseed=int(rand(2100000000));
1.284 albertel 703: $env{'form.rndseed'}=$rndseed;
704: delete($env{'form.resetdata'});
705: delete($env{'form.newrandomization'});
1.159 albertel 706: }
1.488 www 707: $rndseed=~s/\,/\:/g;
708: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 709: if (defined($rndseed)) {
710: my ($c1,$c2)=split(/\:/,$rndseed);
711: unless ($c2) { $c2=0; }
712: unless (($c1==int($c1)) && ($c2==int($c2))) {
713: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
714: }
1.187 albertel 715: }
1.512.2.14 raeburn 716: if (($env{'form.code_for_randomlist'}) && ($target eq 'analyze')) {
717: $env{'form.CODE'} = $env{'form.code_for_randomlist'};
718: $rndseed=&Apache::lonnet::rndseed();
719: undef($env{'form.CODE'});
720: } elsif ($Apache::lonhomework::history{'resource.CODE'}) {
1.247 albertel 721: $rndseed=&Apache::lonnet::rndseed();
722: }
1.479 raeburn 723: $set_safespace = 1;
724: } elsif ($questiontype eq 'randomizetry') {
725: if ($target eq 'analyze') {
726: if (defined($env{'form.grade_rndseed'})) {
727: $rndseed = $env{'form.grade_rndseed'};
728: }
729: }
730: unless (($target eq 'analyze') && (defined($rndseed))) {
731: $rndseed=&Apache::lonnet::rndseed();
1.512.2.19 raeburn 732: my $curr_try = $numtries;
1.479 raeburn 733: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
734: $curr_try ++;
735: }
736: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
737: $rndseed = $1;
738: }
739: if ($curr_try) {
740: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
741: my $inc = int(($curr_try-1)/$reqtries);
742: $rndseed += $inc;
743: } else {
744: $rndseed += $curr_try;
745: }
746: }
747: }
748: $set_safespace = 1;
1.512.2.9 raeburn 749: if ($target eq 'grade') {
750: $Apache::lonhomework::rawrndseed = $rndseed;
751: }
1.479 raeburn 752: }
753: if ($set_safespace) {
754: if ($safeeval) {
755: &Apache::lonxml::debug("Setting rndseed to $rndseed");
756: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
757: }
758: }
759: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
760: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 761: }
762: return $rndseed;
1.105 albertel 763: }
764:
1.268 albertel 765: sub remember_problem_state {
766: return '
1.284 albertel 767: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
768: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
769: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 770: }
771:
1.487 www 772: sub problem_edit_action_button {
773: my ($name,$action,$accesskey,$text,$flag)=@_;
774: my $actionscript="setmode(this.form,'$action')";
775: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
776: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
777: }
778:
1.423 www 779: sub problem_edit_buttons {
1.487 www 780: my ($mode)=@_;
1.512.2.24.2. 3(raebur 781:4): my %editors = &Apache::loncommon::permitted_editors();
1.512.2.11 raeburn 782: # Buttons that save
783: my $result = '<div style="float:right">';
784: if ($mode eq 'editxml') {
1.512.2.24.2. 3(raebur 785:4): if ($editors{'xml'}) {
786:4): $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
787:4): }
1.512.2.11 raeburn 788: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
789: } else {
1.512.2.24.2. 3(raebur 790:4): if ($editors{'edit'}) {
791:4): $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
792:4): }
1.512.2.11 raeburn 793: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
794: }
795: $result.="\n</div>\n";
1.487 www 796: # Buttons that do not save
1.512.2.11 raeburn 797: $result .= '<div>'.
1.487 www 798: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
799: if ($mode eq 'editxml') {
1.512.2.24.2. 3(raebur 800:4): if ($editors{'edit'}) {
801:4): $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
802:4): }
803:4): if ($editors{'daxe'}) {
804:4): $result.=&problem_edit_action_button('subdaxe','daxe','w','Edit with Daxe',1);
805:4): }
1.487 www 806: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
1.512.2.24.2. 3(raebur 807:4): if (&Apache::loncommon::nocodemirror()) {
1.512.2.11 raeburn 808: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
809: }
1.487 www 810: } else {
1.512.2.24.2. 3(raebur 811:4): if ($editors{'xml'}) {
812:4): $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
813:4): }
814:4): if ($editors{'daxe'}) {
815:4): $result.=&problem_edit_action_button('subdaxe','daxe','w','Edit with Daxe',1);
816:4): }
1.487 www 817: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
818: }
819: $result.="\n</div>";
820: return $result;
1.423 www 821: }
822:
823: sub problem_edit_header {
1.512.2.11 raeburn 824: my ($mode)=@_;
825: my $return = '<input type="hidden" name="submitted" value="edit" />'.
1.487 www 826: &remember_problem_state('edit').'
1.512.2.11 raeburn 827: <div class="LC_edit_problem_header">
828: <div class="LC_edit_problem_header_title">
829: '.&mt('Problem Editing').$mode.&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
1.512.2.24.2. 3(raebur 830:4): </div><div class="LC_edit_actionbar" id="actionbar">'.
831:4): '<input type="hidden" name="problemmode" value="saveedit" />'.
832:4): &problem_edit_buttons();
1.512.2.11 raeburn 833:
834: $return .= '</div></div>' . &Apache::lonxml::message_location();
835: $return .= '<link rel="stylesheet" href="/adm/codemirror/codemirror-combined.css" />
836: <script type="text/javascript" src="/adm/codemirror/codemirror-compressed-colorful.js"></script>';
837:
838: $return .= '<script type="text/javascript" src="/adm/jQuery/addons/jquery-scrolltofixed.js"></script>
839: <script type="text/javascript">
840: // unless internet explorer
841: if (!(window.navigator.appName == "Microsoft Internet Explorer" && (document.documentMode || document.compatMode))){
842: $(document).ready(
843: function() {
844: $(\'.LC_edit_actionbar\').scrollToFixed(
845: {
846: fixed: function(){
847: //$(this).find(\'.LC_edit_actionbar\').css(\'height\', \'31px\');
848: $(this).find(\'.LC_edit_actionbar\');
849: }
850: }
851: );
852: }
853: );
854: }
855: </script>
856: <table id="LC_edit_problem_colorful" border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
857: return $return;
1.105 albertel 858: }
859:
1.512.2.11 raeburn 860:
1.105 albertel 861: sub problem_edit_footer {
1.512.2.11 raeburn 862: my $resource = $env{'request.ambiguous'};
1.412 albertel 863: return '</td></tr></table><br />
864: <div class="LC_edit_problem_footer">
1.453 bisitz 865: <hr />'.
1.423 www 866: &problem_edit_buttons().'
1.459 bisitz 867: <hr style="clear:both;" />
1.512.2.11 raeburn 868: <script type="text/javascript">
869: restoreState("'.$resource.'");
870: restoreScrollPosition("'.$resource.'");
871: </script>
1.412 albertel 872: </div>
873: '.
1.342 albertel 874: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 875: }
876:
1.235 albertel 877: sub option {
878: my ($value,$name) = @_;
879: my $result ="<option value='".$value."' ";
1.284 albertel 880: if ($env{'form.'.$name} eq $value) {
1.235 albertel 881: $result.=" selected='on' ";
882: }
883: $result.='>';
884: return $result;
885: }
886:
1.105 albertel 887: sub problem_web_to_edit_header {
1.159 albertel 888: my ($rndseed)=@_;
1.512.2.24.2. 3(raebur 889:4): my %editors = &Apache::loncommon::permitted_editors();
1.406 albertel 890: my $result .= '<div class="LC_edit_problem_header">';
891:
892: if (!$Apache::lonhomework::parsing_a_task) {
893: $result .=
894: '<div class="LC_edit_problem_header_title">'.
895: &mt('Problem Testing').
896: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
897: '</div>';
898: } else {
899: $result .=
900: '<div class="LC_edit_problem_header_title">'.
901: &mt('Task Testing').
902: '</div>';
903: }
904:
1.315 albertel 905: my $show_all_foils_text =
906: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 907: &mt('Show All Instances')
908: : &mt('Show All Foils');
1.315 albertel 909:
1.452 bisitz 910: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
911: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 912: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 913: $show_all.= ' /> '.$show_all_foils_text
914: .'</label></span>';
1.406 albertel 915:
916:
1.384 albertel 917:
1.406 albertel 918: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 919: if (!$Apache::lonhomework::parsing_a_task) {
920: $result.="
1.406 albertel 921: <div class='LC_edit_problem_header_row1'>
922: <span class=\"LC_nobreak\">
1.405 albertel 923: ".&mt("Problem Status:")."
1.235 albertel 924: <select name='problemstate'>
1.270 albertel 925: <option value=''></option>
1.235 albertel 926: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
927: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
928: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
929: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
930: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
931: </select>
1.406 albertel 932: </span>
933: <span class=\"LC_nobreak\">
1.405 albertel 934: ".&mt("Problem Type:")."
1.235 albertel 935: <select name='problemtype'>
1.270 albertel 936: <option value=''></option>
1.512.2.1 raeburn 937: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 938: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 939: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 940: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
941: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
942: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 943: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 944: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 945: </select>
1.406 albertel 946: </span>
947: $show_all
948: </div>
949: <div class='LC_edit_problem_header_row2'>
950: <span class=\"LC_nobreak\">
1.405 albertel 951: ".&mt("Feedback Mode:")."
1.235 albertel 952: <select name='problemstatus'>
953: <option value=''></option>
1.242 albertel 954: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.512.2.6 raeburn 955: ".&option('no', 'problemstatus').&mt("Don't Show Incorrect/Correct Feedback")."</option>
1.405 albertel 956: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 957: </select>
1.406 albertel 958: </span>
959: ";
960:
1.376 albertel 961: } elsif ($Apache::lonhomework::parsing_a_task) {
962: $result.="
1.406 albertel 963: <div class='LC_edit_problem_header_row1'>
964: <span class=\"LC_nobreak\">
1.405 albertel 965: ".&mt("Problem Status:")."
1.376 albertel 966: <select name='problemstate'>
967: <option value=''></option>
968: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
969: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
970: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
971: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
972: </select>
1.406 albertel 973: </span>
974: $show_all
975: ";
976: }
977: $result.='
978: <span class="LC_nobreak">
979: '.&mt('Apply style file: ').'
980: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
981: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
982: </span>
1.422 www 983: </div>
984: <div class="LC_edit_problem_header_row1">'.
985: &Apache::lonxml::renderingoptions().'
1.406 albertel 986: </div>
987: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
988: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
1.512.2.24.2. 3(raebur 989:4): <button type="submit" name="resetdata" accesskey="r" value="reset_submissions">
990:4): '.&mt('Reset Submissions').'</button>
1.406 albertel 991: </div>
1.453 bisitz 992: <hr />
1.406 albertel 993: <div class="LC_edit_problem_header_randomize_row">
994: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
995: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 996: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 997: $rndseed.'"
998: onchange="javascript:document.lonhomework.changerandseed.click()" />';
999:
1000: if (!$Apache::lonhomework::parsing_a_task) {
1001: my $numtoanalyze=$env{'form.numtoanalyze'};
1002: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 1003: $result .= '<span class="LC_nobreak">'.
1004: &mt('[_1] for [_2] versions.',
1.416 raeburn 1005: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 1006: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
1007: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 1008: $numtoanalyze.'" size="5" />').
1009: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
1010: '</span>';
1011:
1.313 albertel 1012: }
1.406 albertel 1013:
1014: $result.='
1015: </div>
1.453 bisitz 1016: <hr />
1.447 bisitz 1017: <div>';
1.416 raeburn 1018: $result.='<input type="hidden" name="problemmode" value="view" />';
1.512.2.24.2. 3(raebur 1019:4): if ($editors{'edit'}) {
1020:4): $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
1021:4): 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
1022:4): }
1023:4): if ($editors{'xml'}) {
1024:4): $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
1025:4): 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1026:4): }
1027:4): if (($editors{'daxe'}) &&
1028:4): ($env{'browser.type'} ne 'explorer' || $env{'browser.version'} > 9)) {
1029:4): my $uri = $env{'request.uri'};
1030:4): my $daxeurl = '/daxepage'.$uri;
1031:4): $result .= '<input type="button" accesskey="w" value="'.&mt('Edit with Daxe').'" '.
1032:4): 'onclick="javascript:setmode(this.form,'."'daxe'".')" />';
1033:4): }
1.408 albertel 1034: $result.='
1035: </div>
1.453 bisitz 1036: <hr />
1.409 albertel 1037: '.&Apache::lonxml::message_location().'
1.406 albertel 1038: </div>';
1.159 albertel 1039: return $result;
1.48 albertel 1040: }
1041:
1.65 albertel 1042: sub initialize_storage {
1.357 albertel 1043: my ($given_symb) = @_;
1.353 albertel 1044: undef(%Apache::lonhomework::results);
1045: undef(%Apache::lonhomework::history);
1.357 albertel 1046: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1047: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 1048:
1049: # anonymous users (CODEd exams) have no data
1050: if ($name eq 'anonymous'
1051: && !defined($domain)) {
1052: return;
1053: }
1054:
1.333 albertel 1055: if ($env{'request.state'} eq 'construct'
1056: || $symb eq ''
1057: || $Apache::lonhomework::type eq 'practice') {
1058:
1059: my $namespace = $symb || $env{'request.uri'};
1.512.2.24.2. 3(raebur 1060:4): if ($env{'form.resetdata'} eq 'reset_submissions' ||
1061:4): ($env{'form.resetdata'} eq 'new_problem_variation'
1.374 albertel 1062: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 1063: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1064: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
1065: &Apache::lonxml::debug("Attempt reset");
1066: }
1.159 albertel 1067: %Apache::lonhomework::history=
1.333 albertel 1068: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.512.2.9 raeburn 1069: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1070: &Apache::lonxml::debug("Return message of $temp");
1071: } else {
1072: %Apache::lonhomework::history=
1073: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1074: }
1.353 albertel 1075:
1.159 albertel 1076: #ignore error conditions
1.512.2.9 raeburn 1077: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1078: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 1079: }
1080:
1.435 jms 1081: =pod
1082:
1083: =item finalize_storage()
1084:
1.512.2.9 raeburn 1085: Stores away the result hash to a student's environment;
1086: checks form.grade_ for specific values, otherwise stores
1087: to the running user's environment.
1088:
1089: &check_correctness_changes() is called in two circumstances
1090: in which the results hash is to be stored permanently, for
1091: grading triggered by a student's submission, where feedback on
1092: correctness is to be provided to the student.
1093:
1094: 1. Immediately prior to storing the results hash
1095:
1096: To handle the case where a student's submission (and award) were
1097: stored after history was retrieved in &initialize_storage(), e.g.,
1098: if a student submitted answers in quick succession (e.g., from
1099: multiple tabs). &Apache::inputtags::hidealldata() is called for
1100: any parts with out-of-order storage (i.e., correct then incorrect,
1101: where awarded >= 1 when correct).
1102:
1103: 2. Immediately after storing the results hash
1104:
1105: To handle the case where lond on the student's homeserver returns
1106: delay:N -- where N is the number of transactions between the last
1107: retrieved in &initialize_storage() and the last stored immediately
1108: before permanent storage of the current transaction via
1109: lond::store_handler(). &Apache::grades::makehidden() is called
1110: for any parts with out-of-order storage (i.e., correct then incorrect,
1111: where awarded >= 1 when correct).
1112:
1.512.2.24.2. (raeburn 1113:): Will call &store_aggregates() to increment totals for attempts,
1.512.2.9 raeburn 1114: students, and corrects, if running user has student role.
1.512.2.24.2. (raeburn 1115:):
1.435 jms 1116: =cut
1117:
1118:
1.65 albertel 1119: sub finalize_storage {
1.357 albertel 1120: my ($given_symb) = @_;
1.159 albertel 1121: my $result;
1.289 albertel 1122: if (%Apache::lonhomework::results) {
1.323 albertel 1123: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
1124: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 1125: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1126: &Apache::lonnet::whichuser($given_symb);
1.512.2.24.2. (raeburn 1127:): my ($passback,$pbscope,$pbmap,$pbsymb,$pbtype,$crsdef,$ltinum,
1128:): $ltiref,$total,$possible,$dopassback);
1.333 albertel 1129: if ($env{'request.state'} eq 'construct'
1130: || $symb eq ''
1131: || $Apache::lonhomework::type eq 'practice') {
1132: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 1133: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 1134: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 1135: $namespace,'',$domain,$name);
1.159 albertel 1136: &Apache::lonxml::debug('Construct Store return message:'.$result);
1137: } else {
1.512.2.24.2. (raeburn 1138:): my ($laststore,$checkedparts,@parts,%postcorrect,%record);
1.512.2.9 raeburn 1139: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1140: (!$Apache::lonhomework::scantronmode) && (!defined($env{'form.grade_symb'})) &&
1141: (!defined($env{'form.grade_courseid'}))) {
1.512.2.24.2. (raeburn 1142:): if (($env{'request.lti.login'}) || ($env{'request.deeplink.login'})) {
1143:): my ($map)=&Apache::lonnet::decode_symb($symb);
1144:): $map = &Apache::lonnet::clutter($map);
1145:): if ($env{'request.lti.login'}) {
1146:): ($passback,$pbscope,$pbmap,$pbsymb,$ltinum,$ltiref) =
1147:): &needs_lti_passback($courseid,$symb,$map);
1148:): } elsif ($env{'request.deeplink.login'}) {
1149:): ($passback,$pbscope,$pbmap,$pbsymb,$crsdef,$ltinum,$ltiref) =
1150:): &needs_linkprot_passback($courseid,$symb,$map);
1151:): }
1152:): }
1.512.2.9 raeburn 1153: if ($Apache::lonhomework::history{'version'}) {
1154: $laststore = $Apache::lonhomework::history{'version'}.'='.
1155: $Apache::lonhomework::history{'timestamp'};
1156: } else {
1157: $laststore = '0=0';
1158: }
1.512.2.24.2. (raeburn 1159:): %record = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1.512.2.9 raeburn 1160: if ($record{'version'}) {
1161: my ($newversion,$oldversion,$oldtimestamp);
1162: if ($Apache::lonhomework::history{'version'}) {
1163: $oldversion = $Apache::lonhomework::history{'version'};
1164: $oldtimestamp = $Apache::lonhomework::history{'timestamp'};
1165: } else {
1166: $oldversion = 0;
1167: $oldtimestamp = 0;
1168: }
1169: if ($record{'version'} > $oldversion) {
1170: if ($record{'timestamp'} >= $oldtimestamp) {
1171: $laststore = $record{'version'}.'='.$record{'timestamp'};
1172: $newversion = $record{'version'} + 1;
1173: $checkedparts = 1;
1174: foreach my $key (keys(%Apache::lonhomework::results)) {
1175: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1176: my $part = $1;
1177: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1178: push(@parts,$part);
1179: }
1180: }
1181: }
1182: if (@parts) {
1183: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1184: \%record,\@parts,$newversion,
1185: $oldversion);
1186: if (@parts_to_hide) {
1187: foreach my $part (@parts_to_hide) {
1188: $postcorrect{$part} = 1;
1189: &Apache::inputtags::hidealldata($part);
1190: }
1191: }
1192: }
1193: }
1194: }
1195: }
1196: }
1.159 albertel 1197: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
1.512.2.9 raeburn 1198: $symb,$courseid,$domain,$name,$laststore);
1199: if ($result =~ /^delay\:(\d+)$/) {
1200: my $numtrans = $1;
1201: my ($oldversion) = split(/=/,$laststore);
1202: if ($numtrans) {
1203: my $newversion = $oldversion + 1 + $numtrans;
1204: my @possparts;
1205: if ($checkedparts) {
1206: foreach my $part (@parts) {
1207: unless ($postcorrect{$part}) {
1208: push(@possparts,$part);
1209: }
1210: }
1211: } else {
1212: foreach my $key (keys(%Apache::lonhomework::results)) {
1213: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1214: my $part = $1;
1215: unless ($postcorrect{$part}) {
1216: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1217: push(@possparts,$part);
1218: }
1219: }
1220: }
1221: }
1222: }
1223: if (@possparts) {
1224: my %newrecord = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1225: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1226: \%newrecord,\@possparts,$newversion,
1227: $oldversion);
1228: if (@parts_to_hide) {
1229: my $partslist = join(',',@parts_to_hide);
1230: &Apache::grades::makehidden($newversion,$partslist,\%newrecord,$symb,$domain,$name,1);
1231: }
1232: }
1233: }
1234: }
1.512.2.24.2. (raeburn 1235:): if ($passback) {
1236:): foreach my $key (keys(%Apache::lonhomework::results)) {
1237:): if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1238:): my $part = $1;
1239:): if ((($Apache::lonhomework::results{$key} =~ /^correct_/) ||
1240:): ($Apache::lonhomework::results{$key} eq 'incorrect_attempted')) &&
1241:): ($Apache::lonhomework::results{"resource.$part.tries"})) {
1242:): $dopassback = 1;
1243:): last;
1244:): }
1245:): }
1246:): }
1247:): }
1248:): if (($dopassback) && ($pbscope eq 'resource') && ($pbsymb eq $symb)) {
1249:): $total = 0;
1250:): $possible = 0;
1251:): my $navmap = Apache::lonnavmaps::navmap->new();
1252:): if (ref($navmap)) {
1253:): my $res = $navmap->getBySymb($symb);
1254:): if (ref($res)) {
1255:): my $partlist = $res->parts();
1256:): if (ref($partlist) eq 'ARRAY') {
1257:): foreach my $part (@{$partlist}) {
1258:): unless (exists($Apache::lonhomework::results{"resource.$part.solved"})) {
1259:): next if ($Apache::lonhomework::record{"resource.$part.solved"} =~/^excused/);
1260:): my $weight = &Apache::lonnet::EXT("resource.$part.weight",$symb);
1261:): $possible += $weight;
1262:): if (($record{'version'}) && (exists($record{"resource.$part.awarded"}))) {
1263:): my $awarded = $record{"resource.$part.awarded"};
1264:): if ($awarded) {
1265:): $total += $weight * $awarded;
1266:): }
1267:): }
1268:): }
1269:): }
1270:): }
1271:): }
1272:): }
1273:): foreach my $key (keys(%Apache::lonhomework::results)) {
1274:): if ($key =~ /^resource\.([^\.]+)\.awarded$/) {
1275:): my $part = $1;
1276:): my $weight = &Apache::lonnet::EXT("resource.$part.weight",$symb);
1277:): $possible += $weight;
1278:): my $awarded = $Apache::lonhomework::results{$key};
1279:): if ($awarded) {
1280:): $total += $weight * $awarded;
1281:): }
1282:): }
1283:): }
1284:): }
1.159 albertel 1285: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 1286: &store_aggregates($symb,$courseid);
1.512.2.24.2. (raeburn 1287:): if ($dopassback) {
1288:): my $scoreformat = 'decimal';
1289:): if (($env{'request.lti.login'}) || ($env{'request.deeplink.login'})) {
1290:): if (ref($ltiref) eq 'HASH') {
1291:): if ($ltiref->{'scoreformat'} =~ /^(decimal|ratio|percentage)$/) {
1292:): $scoreformat = $1;
1293:): }
1294:): }
1295:): }
1296:): my ($pbid,$pburl,$pbtype);
1297:): if ($env{'request.lti.login'}) {
1298:): $pbid = $env{'request.lti.passbackid'};
1299:): $pburl = $env{'request.lti.passbackurl'};
1300:): $pbtype = 'lti';
1301:): } elsif ($env{'request.deeplink.login'}) {
1302:): $pbid = $env{'request.linkprotpbid'};
1303:): $pburl = $env{'request.linkprotpburl'};
1304:): $pbtype = 'linkprot';
1305:): }
1306:): my $ltigrade = {
1307:): 'ltinum' => $ltinum,
1308:): 'lti' => $ltiref,
1309:): 'crsdef' => $crsdef,
1310:): 'cid' => $courseid,
1311:): 'uname' => $env{'user.name'},
1312:): 'udom' => $env{'user.domain'},
1313:): 'pbid' => $pbid,
1314:): 'pburl' => $pburl,
1315:): 'pbtype' => $pbtype,
1316:): 'scope' => $pbscope,
1317:): 'pbmap' => $pbmap,
1318:): 'pbsymb' => $pbsymb,
1319:): 'format' => $scoreformat,
1320:): };
1321:): if ($pbscope eq 'resource') {
1322:): $ltigrade->{'total'} = $total;
1323:): $ltigrade->{'possible'} = $possible;
1324:): }
1325:): push(@Apache::lonhomework::ltipassback,$ltigrade);
1326:): }
1.159 albertel 1327: }
1.323 albertel 1328: } else {
1329: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 1330: }
1.159 albertel 1331: return $result;
1.65 albertel 1332: }
1333:
1.512.2.24.2. (raeburn 1334:): sub needs_lti_passback {
1335:): my ($courseid,$symb,$map) = @_;
1336:): if (($env{'request.lti.passbackid'}) && ($env{'request.lti.passbackurl'})) {
1337:): if ($courseid =~ /^($LONCAPA::match_domain)_($LONCAPA::match_courseid)$/) {
1338:): my ($cdom,$cnum) = ($1,$2);
1339:): my %lti = &Apache::lonnet::get_domain_lti($cdom,'provider');
1340:): if (ref($lti{$env{'request.lti.login'}}) eq 'HASH') {
1341:): if ($lti{$env{'request.lti.login'}}{'passback'}) {
1342:): my $itemnum = $env{'request.lti.login'};
1343:): my ($ltiscope,$ltiuri,$ltisymb) =
1344:): &LONCAPA::ltiutils::lti_provider_scope($env{'request.lti.uri'},
1345:): $cdom,$cnum,1);
1346:): my ($passback,$ltimap);
1347:): if ($ltiscope eq 'resource') {
1348:): if ($ltisymb eq $symb) {
1349:): $passback = 1;
1350:): }
1351:): } elsif ($ltiscope eq 'map') {
1352:): if ($ltiuri eq $map) {
1353:): $passback = 1;
1354:): $ltimap = $map;
1355:): }
1356:): } elsif ($ltiscope eq 'course') {
1357:): if (($env{'request.lti.uri'} eq "/$cdom/$cnum") || ($env{'request.lti.uri'} eq '')) {
1358:): $passback = 1;
1359:): }
1360:): }
1361:): return ($passback,$ltiscope,$ltimap,$ltisymb,$itemnum,$lti{$itemnum});
1362:): }
1363:): }
1364:): }
1365:): }
1366:): return;
1367:): }
1368:):
1369:): sub needs_linkprot_passback {
1370:): my ($courseid,$symb,$map) = @_;
1371:): if (($env{'request.linkprotpbid'}) && ($env{'request.linkprotpburl'})) {
1372:): if ($courseid =~ /^($LONCAPA::match_domain)_($LONCAPA::match_courseid)$/) {
1373:): my ($cdom,$cnum) = ($1,$2);
1374:): my ($deeplink_symb,$deeplink_map,$deeplink,$passback);
1375:): $deeplink_symb = &Apache::loncommon::deeplink_login_symb($cnum,$cdom);
1376:): if ($deeplink_symb) {
1377:): if ($deeplink_symb =~ /\.(page|sequence)$/) {
1378:): $deeplink_map = &Apache::lonnet::deversion((&Apache::lonnet::decode_symb($deeplink_symb))[2]);
1379:): my $navmap = Apache::lonnavmaps::navmap->new();
1380:): if (ref($navmap)) {
1381:): $deeplink = $navmap->get_mapparam(undef,$deeplink_map,'0.deeplink');
1382:): }
1383:): } else {
1384:): $deeplink = &Apache::lonnet::EXT('resource.0.deeplink',$deeplink_symb);
1385:): $deeplink_map = &Apache::lonnet::deversion((&Apache::lonnet::decode_symb($deeplink_symb))[0]);
1386:): }
1387:): if (($deeplink ne '') && ($env{'request.linkprot'} ne '')) {
1388:): my ($itemid,$tinyurl) = split(/:/,$env{'request.linkprot'});
1389:): if ($itemid =~ /^(\d+)(c|d)$/) {
1390:): my ($itemnum,$itemtype) = ($1,$2);
1391:): my ($crsdef,$lti_in_use);
1392:): if ($itemtype eq 'c') {
1393:): $crsdef = 1;
1394:): my %crslti = &Apache::lonnet::get_course_lti($cnum,$cdom,'provider');
1395:): $lti_in_use = $crslti{$itemnum};
1396:): } else {
1397:): my %domlti = &Apache::lonnet::get_domain_lti($cdom,'linkprot');
1398:): $lti_in_use = $domlti{$itemnum};
1399:): }
1400:): my ($state,$others,$listed,$scope,$protect,$display,$target,$exit) = split(/,/,$deeplink);
1401:): my ($passback,$pbscope);
1402:): if ($scope eq 'res') {
1403:): if ($deeplink_symb eq $symb) {
1404:): $passback = 1;
1405:): $pbscope = 'resource';
1406:): }
1407:): } elsif ($scope eq 'map') {
1408:): if (&Apache::lonnet::clutter($deeplink_map) eq $map) {
1409:): $passback = 1;
1410:): $pbscope = 'nonrec';
1411:): }
1412:): } elsif ($scope eq 'rec') {
1413:): if (&Apache::lonnet::clutter($deeplink_map) eq $map) {
1414:): $passback = 1;
1415:): $pbscope = 'map';
1416:): } else {
1417:): my @recurseup = &Apache::lonnet::get_map_hierarchy($map,$env{'request.course.id'});
1418:): if (grep(/^\Q$deeplink_map\E$/,@recurseup)) {
1419:): $passback = 1;
1420:): $pbscope = 'map';
1421:): }
1422:): }
1423:): }
1424:): return ($passback,$pbscope,$deeplink_map,$deeplink_symb,$crsdef,$itemnum,$lti_in_use);
1425:): }
1426:): }
1427:): }
1428:): }
1429:): }
1430:): }
1431:):
1.435 jms 1432: =pod
1433:
1.512.2.9 raeburn 1434: =item check_correctness_changes()
1435:
1436: For all parts for which current results contain a solved status
1437: of "incorrect_attempted", check if there was a transaction in which
1438: solved was set to "correct_by_student" in the time since the last
1439: transaction (retrieved when &initialize_storage() was called i.e.,
1440: when &start_problem() was called), unless:
1441: (a) questiontype parameter is set to survey or anonymous survey (+/- credit)
1442: (b) problemstatus is set to no or no_feedback_ever
1443: If such a transaction exists, and did not occur after "reset status"
1444: by a user with grading privileges, then the current transaction is an
1445: example of an out-of-order transaction (i.e., incorrect occurring after
1446: correct). Accordingly, the current transaction should be hidden.
1447:
1448: =cut
1449:
1450:
1451: sub check_correctness_changes {
1452: my ($symb,$courseid,$domain,$name,$record,$parts,$newversion,$oldversion) = @_;
1453: my @parts_to_hide;
1454: unless ((ref($record) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
1455: return @parts_to_hide;
1456: }
1457: if (@{$parts}) {
1458: my $usec;
1459: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1460: ($env{'request.course.id'} eq $courseid)) {
1461: $usec = $env{'request.course.sec'};
1462: } else {
1463: $usec = &Apache::lonnet::getsection($domain,$name,$courseid);
1464: }
1465: foreach my $id (@{$parts}) {
1466: next if (($Apache::lonhomework::results{'resource.'.$id.'.type'} =~ /survey/) ||
1467: (&Apache::lonnet::EXT("resource.$id.problemstatus",$symb,
1468: $domain,$name,$usec,undef,$courseid) =~ /^no/));
1469: my $reset;
1470: for (my $i=$newversion-1; $i>=$oldversion; $i--) {
1471: if (($record->{$i.':resource.'.$id.'.regrader'}) &&
1472: ($record->{$i.':resource.'.$id.'.tries'} eq '') &&
1473: ($record->{$i.':resource.'.$id.'.award'} eq '')) {
1474: $reset = 1;
1475: } elsif (($record->{$i.":resource.$id.solved"} eq 'correct_by_student') &&
1476: ($record->{$i.":resource.$id.awarded"} >= 1)) {
1477: unless ($reset) {
1478: push(@parts_to_hide,$id);
1479: last;
1480: }
1481: }
1482: }
1483: }
1484: }
1485: return @parts_to_hide;
1486: }
1487:
1488: =pod
1489:
1.435 jms 1490: item store_aggregates()
1491:
1492: Sends hash of values to be incremented in nohist_resourcetracker.db
1493: for the course. Increments total number of attempts, unique students
1494: and corrects for each part for an instance of a problem, as appropriate.
1495:
1496: =cut
1497:
1.285 raeburn 1498: sub store_aggregates {
1499: my ($symb,$courseid) = @_;
1.479 raeburn 1500: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 1501: my @parts;
1.288 albertel 1502: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
1503: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 1504: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 1505: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 1506: push(@parts, $1);
1.285 raeburn 1507: }
1508: }
1.286 albertel 1509: foreach my $part (@parts) {
1.470 raeburn 1510: if ($env{'request.role'} =~/^st/) {
1511: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
1512: eq 'APPROX_ANS' ||
1513: $Apache::lonhomework::results{'resource.'.$part.'.award'}
1514: eq 'EXACT_ANS') {
1515: $aggregate{$symb."\0".$part."\0correct"} = 1;
1516: }
1517: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1518: $aggregate{$symb."\0".$part."\0users"} = 1;
1519: } else {
1520: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1521: if ($last_reset) {
1522: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1523: $aggregate{$symb."\0".$part."\0users"} = 1;
1524: }
1525: }
1526: }
1527: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 1528: }
1.470 raeburn 1529: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 1530: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
1531: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
1532: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
1533: $randtrycounter{$symb."\0".$part} = 1;
1534: } else {
1535: $anoncounter{$symb."\0".$part} = 1;
1536: }
1.470 raeburn 1537: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
1538: if ($needsrelease) {
1539: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
1540: if ($curr_required eq '') {
1.471 raeburn 1541: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1542: } else {
1543: my ($currmajor,$currminor) = split(/\./,$curr_required);
1544: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
1545: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 1546: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1547: }
1.292 raeburn 1548: }
1549: }
1.285 raeburn 1550: }
1551: }
1.512.2.9 raeburn 1552: if (keys(%aggregate) > 0) {
1.289 albertel 1553: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 1554: $cdomain,$cname);
1555: }
1.472 raeburn 1556: if (keys(%anoncounter) > 0) {
1.481 raeburn 1557: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
1558: $cdomain,$cname);
1.472 raeburn 1559: }
1.479 raeburn 1560: if (keys(%randtrycounter) > 0) {
1.481 raeburn 1561: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
1562: $cdomain,$cname);
1.479 raeburn 1563: }
1.292 raeburn 1564: }
1.289 albertel 1565:
1.512.2.24.2. 0(raebur 1566:4): sub access_status_msg {
1567:4): my ($mode,$status,$symb,$target,$ipused,$accessmsg) = @_;
1568:4): my $msg;
1569:4): if ($target eq 'web') {
1570:4): if ($status eq 'UNAVAILABLE') {
1571:4): $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1572:4): } elsif ($status eq 'NOT_IN_A_SLOT') {
1573:4): $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1574:4): } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1575:4): ($status eq 'NOTRESERVABLE')) {
1576:4): $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1577:4): } elsif ($status ne 'NOT_YET_VIEWED') {
1578:4): $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1579:4): }
1580:4): if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1581:4): $msg.=&mt('The problem ').$accessmsg;
1582:4): } elsif ($status eq 'UNCHECKEDOUT') {
1583:4): $msg.=&checkout_msg();
1584:4): } elsif ($status eq 'NOT_YET_VIEWED') {
1585:4): $msg.=&firstaccess_msg($accessmsg,$symb);
1586:4): } elsif ($status eq 'NOT_IN_A_SLOT') {
1587:4): $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1588:4): } elsif ($status eq 'RESERVABLE') {
1589:4): $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1590:4): &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1591:4): '<br />'.
1592:4): &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1593:4): } elsif ($status eq 'RESERVABLE_LATER') {
1594:4): $msg.=&mt('Window to make a reservation will open [_1].',
1595:4): &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1596:4): } elsif ($status eq 'NOTRESERVABLE') {
1597:4): $msg.=&mt('Not available to make a reservation.');
1598:4): }
1599:4): $msg.='<br />';
1600:4): } elsif ($target eq 'tex') {
1601:4): my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1602:4): : '\begin{minipage}{\textwidth}';
1603:4):
1604:4): $msg ='\noindent \vskip 1 mm '.
1605:4): $startminipage.'\vskip 0 mm';
1606:4): if ($status eq 'UNAVAILABLE') {
2(raebur 1607:4): $msg.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.');
1608:4): } elsif ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1609:4): $msg.=&mt('Problem is not open to be viewed. It')." $accessmsg";
0(raebur 1610:4): } else {
2(raebur 1611:4): $msg.=&mt('Problem is not open to be viewed.');
0(raebur 1612:4): }
2(raebur 1613:4): $msg .= " \\vskip 0 mm ";
0(raebur 1614:4): }
1615:4): return $msg;
1616:4): }
1617:4):
1618:4): sub checkin_prompt {
1619:4): my ($target,$slot_name,$slot,$type) = @_;
1620:4): my $result;
1621:4): if ($target eq 'web') {
1622:4): $result = &Apache::bridgetask::proctor_validation_screen($slot);
1623:4): } elsif ($target eq 'grade') {
1624:4): if (!&Apache::bridgetask::proctor_check_auth($slot_name,$slot,$type)) {
1625:4): $result = &mt('An error occurred during check-in');
1626:4): }
1627:4): }
1628:4): return $result;
1629:4): }
1630:4):
1631:4): sub selfcheckin_resource {
1632:4): my ($resource_due,$slot_name,$slot,$symb) = @_;
1633:4): if ($slot_name ne '') {
1634:4): my $checked_in =
1635:4): $Apache::lonhomework::history{'resource.0.checkedin'};
1636:4): if ($checked_in eq '') {
1637:4): # unproctored slot access, self checkin
1638:4): my $check = &Apache::bridgetask::check_in('problem',undef,undef,
1639:4): $slot_name);
1640:4): if ($check =~ /^error: /) {
1641:4): &Apache::lonnet::logthis("Error during self-checkin of problem (symb: $symb) using slot: $slot_name");
1642:4): } else {
1643:4): $checked_in = $Apache::lonhomework::results{"resource.0.checkedin"};
1644:4): }
1645:4): }
1646:4): if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1647:4): if ($slot->{'starttime'} < time()) {
1648:4): if (!$resource_due) {
1649:4): $resource_due = $slot->{'endtime'};
1650:4): } elsif ($slot->{'endtime'} < $resource_due) {
1651:4): $resource_due = $slot->{'endtime'};
1652:4): }
1653:4): }
1654:4): }
1655:4): }
1656:4): return $resource_due;
1657:4): }
1658:4):
1.65 albertel 1659: sub checkout_msg {
1.211 albertel 1660: my %lt=&Apache::lonlocal::texthash(
1661: 'resource'=>'The resource needs to be checked out',
1662: '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.',
1663: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
1.512.2.1 raeburn 1664: 'checkout'=>'Check out Exam for Viewing',
1665: 'checkout?'=>'Check out Exam?');
1.352 albertel 1666: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 1667: return (<<ENDCHECKOUT);
1.211 albertel 1668: <h2>$lt{'resource'}</h2>
1669: <p>$lt{'id_expln'}</p>
1.449 bisitz 1670: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 1671: <form name="checkout" method="post" action="$uri">
1.91 albertel 1672: <input type="hidden" name="doescheckout" value="yes" />
1.512.2.4 raeburn 1673: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onclick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 1674: </form>
1675: ENDCHECKOUT
1676: }
1677:
1.252 albertel 1678: sub firstaccess_msg {
1.253 albertel 1679: my ($time,$symb)=@_;
1.414 albertel 1680: my $result;
1681: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1682: if ($interval[1] eq 'map') {
1683: my ($map)=&Apache::lonnet::decode_symb($symb);
1684: my $foldertitle=&Apache::lonnet::gettitle($map);
1685:
1686: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 1687: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
1688: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1689: ,$foldertitle,$time)."</p>";
1.414 albertel 1690: } elsif ($interval[1] eq 'course') {
1691: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 1692: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 1693: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 1694: ,$course,$time)."</p>";
1.414 albertel 1695: } else {
1696: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1697: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1698: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1699: ,$title,$time)."</p>";
1.414 albertel 1700: }
1.352 albertel 1701: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1702: my $buttontext = &mt('Show Resource');
1703: my $timertext = &mt('Start Timer?');
1.512.2.24 raeburn 1704: my $shownsymb = &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb),'\'"<>&');
1.414 albertel 1705: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1706: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1707: <input type="hidden" name="markaccess" value="yes" />
1.512.2.24 raeburn 1708: <input type="hidden" name="symb" value="$shownsymb" />
1.512.2.4 raeburn 1709: <input type="button" name="accessbutton" value="$buttontext" onclick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1710: </form>
1711: ENDCHECKOUT
1.414 albertel 1712: return $result;
1.252 albertel 1713: }
1714:
1.204 albertel 1715: sub init_problem_globals {
1716: my ($type)=@_;
1717: #initialize globals
1.308 foxr 1718: # For problems, we start out in part 0 (outside a <part> tag).
1719: # and part 0 is used to describe the main body of the <problem>
1720: #
1.204 albertel 1721: if ($type eq 'problem') {
1722: $Apache::inputtags::part='0';
1723: @Apache::inputtags::partlist=('0');
1.405 albertel 1724: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1725: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1726:
1.266 albertel 1727: } elsif ($type eq 'library') {
1.204 albertel 1728: $Apache::inputtags::part='';
1729: @Apache::inputtags::partlist=();
1.405 albertel 1730: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1731: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1732:
1.304 albertel 1733: } elsif ($type eq 'Task') {
1734: $Apache::inputtags::part='0';
1735: @Apache::inputtags::partlist=('0');
1.405 albertel 1736: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1737: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1738: }
1.477 www 1739: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1740: @Apache::inputtags::responselist = ();
1741: @Apache::inputtags::importlist = ();
1742: @Apache::inputtags::previous=();
1743: @Apache::inputtags::previous_version=();
1.512.2.10 raeburn 1744: $Apache::inputtags::leniency='';
1.204 albertel 1745: $Apache::structuretags::printanswer='No';
1746: @Apache::structuretags::whileconds=();
1747: @Apache::structuretags::whilebody=();
1748: @Apache::structuretags::whileline=();
1749: $Apache::lonhomework::scantronmode=0;
1.512.2.21 raeburn 1750: $Apache::lonhomework::randomizetrypart=0;
1.204 albertel 1751: undef($Apache::lonhomework::name);
1.358 albertel 1752: undef($Apache::lonhomework::default_type);
1753: undef($Apache::lonhomework::type);
1.204 albertel 1754: }
1755:
1756: sub reset_problem_globals {
1757: my ($type)=@_;
1758: undef(%Apache::lonhomework::history);
1759: undef(%Apache::lonhomework::results);
1760: undef($Apache::inputtags::part);
1.512.2.10 raeburn 1761: undef($Apache::inputtags::leniency);
1.498 raeburn 1762: if ($type eq 'Task') {
1763: undef($Apache::inputtags::slot_name);
1.512.2.9 raeburn 1764: } elsif ($type eq 'problem') {
1765: undef($Apache::lonhomework::rawrndseed);
1.498 raeburn 1766: }
1.208 albertel 1767: #don't undef this, lonhomework.pm takes care of this, we use this to
1768: #detect if we try to do 2 problems in one file
1769: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1770: undef($Apache::lonhomework::name);
1.358 albertel 1771: undef($Apache::lonhomework::default_type);
1772: undef($Apache::lonhomework::type);
1773: undef($Apache::lonhomework::scantronmode);
1.512.2.21 raeburn 1774: undef($Apache::inputtags::randomizetrypart);
1.358 albertel 1775: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1776: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1777: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1778: }
1779:
1.241 albertel 1780: sub set_problem_state {
1.240 albertel 1781: my ($part)=@_;
1.284 albertel 1782: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1783: $Apache::lonhomework::history{"resource.$part.solved"}=
1784: 'correct_by_student';
1785: }
1786: }
1787:
1.241 albertel 1788: sub get_problem_status {
1789: my ($part)=@_;
1.267 albertel 1790: my $problem_status;
1.284 albertel 1791: if ($env{'request.state'} eq 'construct' &&
1792: defined($env{'form.problemstatus'})) {
1793: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1794: } else {
1795: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1796: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1797: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1798: }
1799: return $problem_status;
1800: }
1801:
1.9 albertel 1802: sub start_problem {
1.326 albertel 1803: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1804:
1.311 foxr 1805: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1806: if (!$Apache::lonxml::metamode) {
1807: &Apache::lonxml::startredirection();
1808: }
1.311 foxr 1809:
1.308 foxr 1810: # Problems don't nest and we don't allow more than one <problem> in
1811: # a .problem file.
1812: #
1.184 albertel 1813: if ( $Apache::inputtags::part ne '' ||
1814: $Apache::lonhomework::parsing_a_problem) {
1815: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1816: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1817: return '';
1818: }
1.184 albertel 1819:
1820: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1821: &init_problem_globals('problem');
1.166 albertel 1822:
1.284 albertel 1823: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1824: $Apache::lonhomework::scantronmode=1;
1825: }
1.161 albertel 1826:
1.159 albertel 1827: if ($target ne 'analyze') {
1.415 raeburn 1828: my $type = &Apache::lonnet::EXT('resource.0.type');
1829: $Apache::lonhomework::type=$type;
1.284 albertel 1830: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1831: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1832: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1833: }
1.332 albertel 1834: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1835: }
1.164 albertel 1836: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1837: my $uri=$env{'request.uri'};
1.159 albertel 1838: if ($uri=~/\.(\w+)$/) {
1839: $Apache::lonhomework::type=$1;
1840: &Apache::lonxml::debug("Using type of $1");
1841: } else {
1842: $Apache::lonhomework::type='problem';
1843: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1844: }
1.87 albertel 1845: }
1.301 albertel 1846: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1847:
1.363 albertel 1848: &initialize_storage();
1.389 albertel 1849: if ($target ne 'analyze'
1850: && $env{'request.state'} eq 'construct') {
1851: &set_problem_state('0');
1852: }
1853:
1.366 albertel 1854: if ($target eq 'web') {
1855: &Apache::lonxml::debug(" grading history ");
1856: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1857: }
1.363 albertel 1858:
1.159 albertel 1859: #added vars to the scripting enviroment
1.213 albertel 1860: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1861: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1862: &Apache::run::run($expression,$safeeval);
1.159 albertel 1863: my $status;
1864: my $accessmsg;
1.508 raeburn 1865: my $resource_due;
1.159 albertel 1866:
1.343 albertel 1867: my $name= &get_resource_name($parstack,$safeeval);
1.512.2.16 raeburn 1868: my ($result,$form_tag_start,$slot_name,$slot,$probpartlist,$firstaccres);
1.506 raeburn 1869:
1870: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1871: $target eq 'tex') {
1872: if ($env{'form.markaccess'}) {
1873: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1.512.2.24.2. (raeburn 1874:): my ($timelimit) = ($interval[0] =~ /^(\d+)/);
1875:): my $is_set = &Apache::lonnet::set_first_access($interval[1],$timelimit);
1.512.2.16 raeburn 1876: unless (($is_set eq 'ok') || ($is_set eq 'already_set')) {
1877: $firstaccres = $is_set;
1878: }
1.506 raeburn 1879: }
1880: }
1881:
1.354 albertel 1882: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1883: || $target eq 'edit') {
1.512.2.9 raeburn 1884: ($result,$form_tag_start,$probpartlist) =
1.350 albertel 1885: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1886: $name);
1.512.2.24.2. (raeburn 1887:): } elsif ((($target eq 'grade') && ($Apache::lonhomework::type eq 'randomizetry')) ||
1888:): ($target eq 'answer')) {
1.512.2.9 raeburn 1889: my ($symb)= &Apache::lonnet::whichuser();
1.512.2.22 raeburn 1890: if ($symb ne '') {
1891: my $navmap = Apache::lonnavmaps::navmap->new();
1892: if (ref($navmap)) {
1893: my $res = $navmap->getBySymb($symb);
1894: if (ref($res)) {
1895: $probpartlist = $res->parts();
1896: }
1.512.2.9 raeburn 1897: }
1898: }
1.350 albertel 1899: }
1900:
1.512.2.24.2. (raeburn 1901:): if (($target eq 'web') && ($env{'request.user_in_effect'})) {
1902:): &Apache::lonxml::get_all_text("/problem",$parser,$style);
1903:): return $result;
1904:): }
1905:):
1906:): if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1907:): $target eq 'tex') {
1908:):
1909:): my ($symb)= &Apache::lonnet::whichuser();
1910:): ($status,$accessmsg,$slot_name,$slot) =
1911:): &Apache::lonhomework::check_slot_access('0','problem',$symb,$probpartlist);
1912:): push (@Apache::inputtags::status,$status);
1913:): }
1914:):
1.284 albertel 1915: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1916:
1.479 raeburn 1917: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1918: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1919: $target eq 'tex') {
1.479 raeburn 1920:
1.512.2.22 raeburn 1921: my ($symb) = &Apache::lonnet::whichuser();
1.159 albertel 1922: #handle rand seed in construction space
1.512.2.22 raeburn 1923: if (($env{'request.state'} eq 'construct') || ($symb eq '')) {
1924: my $partorder=&Apache::lonnet::metadata($env{'request.uri'},'partorder');
1925: if ($partorder ne '') {
1926: @{$probpartlist} = split(/,/,$partorder);
1927: }
1928: }
1.512.2.9 raeburn 1929: my $rndseed=&setup_rndseed($safeeval,$target,$probpartlist);
1930: if (($target eq 'grade') && &Apache::response::submitted()) {
1931: if ($Apache::lonhomework::type eq 'randomizetry') {
1932: $Apache::lonhomework::results{'resource.0.rndseed'}=$rndseed;
1933: } else {
1934: my @parts;
1935: if (ref($probpartlist) eq 'ARRAY') {
1936: @parts = @{$probpartlist};
1937: }
1938: unless (@parts) {
1939: $Apache::lonhomework::results{'resource.0.rndseed'}=$Apache::lonhomework::rawrndseed;
1940: }
1941: }
1942: }
1.479 raeburn 1943:
1.333 albertel 1944: if ($env{'request.state'} ne "construct" &&
1945: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.512.2.20 raeburn 1946: my $rndseedval = $rndseed;
1947: if (($symb eq '') && ($Apache::lonhomework::type eq 'randomizetry')) {
1948: $rndseedval = $env{'form.rndseed'};
1949: }
1.162 albertel 1950: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.512.2.20 raeburn 1951: $rndseedval.'" />'.
1.512.2.24.2. 3(raebur 1952:4): '<button type="submit" name="resetdata"
1953:4): value="new_problem_variation">'.&mt('New Problem Variation').'</button>';
1.334 albertel 1954: if (exists($env{'form.username'})) {
1955: $form_tag_start.=
1.164 albertel 1956: '<input type="hidden" name="username"
1.284 albertel 1957: value="'.$env{'form.username'}.'" />';
1.334 albertel 1958: }
1.462 raeburn 1959: if ($env{'request.role.adv'}) {
1960: $form_tag_start.= ' <label class="LC_nobreak">'
1961: .'<input type="checkbox" name="showallfoils"';
1962: if (defined($env{'form.showallfoils'})) {
1963: $form_tag_start.=' checked="checked"';
1964: }
1965: $form_tag_start.= ' /> '
1966: .&mt('Show All Foils')
1967: .'</label>';
1968: }
1.417 www 1969: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1970: $form_tag_start.=&practice_problem_header();
1.417 www 1971: }
1.462 raeburn 1972: $form_tag_start.='<hr />';
1.512.2.20 raeburn 1973: }
1974: if (($env{'request.state'} ne "construct") &&
1975: ($Apache::lonhomework::type eq 'randomizetry') &&
1976: ($status eq 'CAN_ANSWER')) {
1.512.2.21 raeburn 1977: my @parts;
1978: if (ref($probpartlist) eq 'ARRAY') {
1979: @parts = @{$probpartlist};
1980: }
1981: unless (@parts) {
1982: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1983: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1984: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries,$symb);
1985: }
1.479 raeburn 1986: }
1.324 albertel 1987:
1.159 albertel 1988: my $expression='$external::datestatus="'.$status.'";';
1989: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1990: &Apache::run::run($expression,$safeeval);
1991: &Apache::lonxml::debug("Got $status");
1.324 albertel 1992:
1.159 albertel 1993: if (( $status eq 'CLOSED' ) ||
1994: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1995: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1996: ( $status eq 'BANNED') ||
1.216 albertel 1997: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1998: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1999: ( $status eq 'NOTRESERVABLE') ||
2000: ( $status eq 'RESERVABLE') ||
2001: ( $status eq 'RESERVABLE_LATER') ||
1.216 albertel 2002: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2003: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
2004: $style);
1.512.2.24.2. 0(raebur 2005:4): if (($status eq 'NOT_YET_VIEWED') && ($firstaccres)) {
2006:4): $result .= '<p class="LC_error">'.
2007:4): &mt('A problem occurred when trying to start the timer.').'</p>';
2008:4): }
1(raebur 2009:4): $result .= &access_status_msg('problem',$status,$symb,$target,'',$accessmsg);
1.324 albertel 2010: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 2011: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
2012: $style);
1.512.2.24.2. 0(raebur 2013:4): $result .= &checkin_prompt($target,$slot_name,$slot,'problem');
1.159 albertel 2014: } elsif ($target eq 'web') {
1.508 raeburn 2015: if ($status eq 'CAN_ANSWER') {
2016: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
2017: if ($slot_name ne '') {
1.512.2.24.2. 0(raebur 2018:4): $resource_due = &selfcheckin_resource($resource_due,$slot_name,$slot,
2019:4): $env{'request.symb'});
1.508 raeburn 2020: }
2021: if ($resource_due) {
2022: my $time_left = $resource_due - time();
2023: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
2024: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
2025: }
2026: }
2027: }
1.368 albertel 2028: $result.="\n $form_tag_start \t".
1.227 albertel 2029: '<input type="hidden" name="submitted" value="yes" />';
2030: # create a page header and exit
1.284 albertel 2031: if ($env{'request.state'} eq "construct") {
1.512.2.24.2. 4(raebur 2032:4): if ($env{'form.inhibitmenu'} eq 'yes') {
2033:4): # error messages can be useful in any case
2034:4): $result.= &Apache::lonxml::message_location();
2035:4): } else {
2036:4): $result.= &problem_web_to_edit_header($env{'form.rndseed'});
2037:4): }
1.428 raeburn 2038: if ($Apache::lonhomework::type eq 'practice') {
1.512.2.24.2. 3(raebur 2039:4): $result.= '<button type="submit" name="resetdata" '.
2040:4): 'value="new_problem_variation">'.&mt('New Problem Variation').'</button>'.
1.428 raeburn 2041: &practice_problem_header().'<hr />';
1.512.2.19 raeburn 2042: } elsif ($Apache::lonhomework::type eq 'randomizetry') {
2043: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2044: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2045: $result.=&randomizetry_problem_header($problemstatus,$reqtries);
1.428 raeburn 2046: }
1.227 albertel 2047: }
2048: # if we are viewing someone else preserve that info
1.284 albertel 2049: if (defined $env{'form.grade_symb'}) {
1.227 albertel 2050: foreach my $field ('symb','courseid','domain','username') {
2051: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 2052: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 2053: }
1.479 raeburn 2054: foreach my $field ('trial','questiontype') {
2055: if ($env{"form.grade_$field"} ne '') {
2056: $result .= '<input type="hidden" name="grade_'.$field.
2057: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
2058: }
2059: }
1.159 albertel 2060: }
1.490 raeburn 2061: if ($env{'form.grade_imsexport'}) {
2062: $result = '';
2063: }
1.159 albertel 2064: } elsif ($target eq 'tex') {
1.319 foxr 2065: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 2066: $result .= &select_metadata_hyphenation();
1.99 sakharuk 2067: }
1.159 albertel 2068: } elsif ($target eq 'edit') {
1.343 albertel 2069: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 2070: $Apache::lonxml::warnings_error_header=
2071: &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 2072: my $temp=&Apache::edit::insertlist($target,$token);
2073: $result.=$temp;
2074: } elsif ($target eq 'modified') {
2075: $result=$token->[4];
2076: } else {
2077: # page_start returned a starting result, delete it if we don't need it
2078: $result = '';
1.99 sakharuk 2079: }
1.159 albertel 2080: return $result;
1.9 albertel 2081: }
2082:
2083: sub end_problem {
1.159 albertel 2084: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 2085: my $result;
1.310 foxr 2086:
1.321 albertel 2087: if (!$Apache::lonxml::metamode) {
2088: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 2089: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2090: }
1.319 foxr 2091:
2092: if ($target eq 'tex') {
1.321 albertel 2093: # Figure out the front matter and replace the
2094: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
2095: # this in end_problem because whether or not we display due
2096: # dates depends on whether due dates have already been
2097: # displayed in the problem parts.
2098:
1.319 foxr 2099: my $frontmatter = '';
2100: my $startminipage = '';
2101: if (not $env{'form.problem_split'}=~/yes/) {
2102: $startminipage = '\begin{minipage}{\textwidth}';
2103: }
2104: my $id = $Apache::inputtags::part;
2105: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
2106: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.512.2.9 raeburn 2107: my @packages = split(/,/,$packages);
1.319 foxr 2108: my $allow_print_points = 0;
2109: foreach my $partial_key (@packages) {
2110: if ($partial_key=~m/^part_0$/) {
2111: $allow_print_points=1;
2112: }
2113: }
2114: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2115: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
2116: if (lc($env{'course.'.$env{'request.course.id'}.
2117: '.disableexampointprint'}) eq 'yes') {
2118: $allow_print_points=0;
2119: }
2120: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 2121: 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 2122: &clear_required_languages();
1.319 foxr 2123: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
2124: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
2125:
2126: # Figure out what the due date is and if we need to print
2127: # it in the problem header. We have been logging the
2128: # last due date written to file.
2129:
2130: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
2131: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 2132: my $duedate_text = &mt('Due date: [_1]'
2133: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 2134: my $temp_file;
2135: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
2136:
2137: # Figure out what the last printed due date is or set it
2138: # to the epoch if no duedates have been printed.
2139:
2140: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
2141: if (-e $filename) {
2142: $temp_file = Apache::File->new($filename);
2143: my @due_file = <$temp_file>;
2144: $due_file_content = $due_file[$#due_file];
2145: chomp $due_file_content;
2146: }
2147:
2148: # We display the due date iff it is not the same as the last
2149: # duedate in problem header ($due_file_content), and
2150: # none of our parts displayed a duedate.
2151: #
2152: my $parts_with_displayduedate;
2153: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
2154: $parts_with_displayduedate =
2155: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
2156: } else {
2157: $parts_with_displayduedate = 0;
2158: }
2159: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
2160: $temp_file = Apache::File->new('>'.$filename);
2161: print $temp_file "$duetime\n";
2162: if (not $env{'request.symb'} =~ m/\.page_/) {
2163: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
2164: $frontmatter .= $begin_doc.
1.448 bisitz 2165: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 2166: } else {
2167: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 2168: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 2169: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2170: }
1.319 foxr 2171: }
2172: } else {
1.448 bisitz 2173: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 2174: }
2175: } else {
2176: if (not $env{'request.symb'} =~ m/\.page_/) {
2177: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 2178: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 2179: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2180: }
1.319 foxr 2181: } else {
1.381 albertel 2182: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 2183: }
2184: }
2185: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1.512.2.24.2. (raeburn 2186:): } elsif ($target eq 'web') {
2187:): if ($env{'request.user_in_effect'}) {
2188:): &reset_problem_globals('problem');
2189:): $result .= &Apache::lonhtmlcommon::set_compute_end_time();
2190:): return $result;
2191:): }
1.319 foxr 2192: }
2193:
1.159 albertel 2194: my $status=$Apache::inputtags::status['-1'];
2195: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
2196: $target eq 'tex') {
1.249 albertel 2197: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 2198: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 2199: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
2200: &Apache::inputtags::grade;
1.324 albertel 2201: } elsif ($status eq 'NEEDS_CHECKIN') {
2202: # no need to grade, and don't want to hide data
1.249 albertel 2203: } else {
2204: # move any submission data to .hidden
2205: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2206: }
1.159 albertel 2207: } elsif ( ($target eq 'web' || $target eq 'tex') &&
2208: $Apache::inputtags::part eq '0' &&
1.490 raeburn 2209: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
2210: && !$env{'form.grade_imsexport'}) {
1.159 albertel 2211: # if part is zero, no <part>s existed, so we need show the current
2212: # grading status
2213: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
2214: $result.= $gradestatus;
2215: }
2216: if (
1.284 albertel 2217: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 2218: ($target eq 'answer') || ($target eq 'tex')
2219: ) {
1.490 raeburn 2220: if (($target ne 'tex') &&
2221: ($env{'form.answer_output_mode'} ne 'tex') &&
2222: (!$env{'form.grade_imsexport'})) {
1.254 www 2223: $result.="</form>";
1.159 albertel 2224: }
2225: if ($target eq 'web') {
1.507 raeburn 2226: #
2227: # Closing </body></html> not added by end_page().
2228: # Added separately at end of this routine, after added
2229: # <script></script> so document will be valid xhtml.
2230: #
2231: $result.= &Apache::loncommon::end_page({'discussion' => 1,
2232: 'notbody' => 1});
1.159 albertel 2233: } elsif ($target eq 'tex') {
1.178 sakharuk 2234: my $endminipage = '';
1.284 albertel 2235: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 2236: $endminipage = '\end{minipage}';
2237: }
1.284 albertel 2238: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 2239: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 2240: } else {
1.262 sakharuk 2241: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 2242: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 2243: $result .= $endminipage.'\end{document} ';
2244: } else {
1.382 albertel 2245: $result .= $endminipage;
1.262 sakharuk 2246: }
1.159 albertel 2247: }
2248: }
2249: }
1.476 www 2250: if ($target eq 'web') {
1.512.2.21 raeburn 2251: $result.=&Apache::functionplotresponse::init_script();
2252: if ($Apache::lonhomework::default_type eq 'randomizetry') {
2253: my ($symb) = &Apache::lonnet::whichuser();
2254: if ((($env{'request.state'} eq 'construct') || ($symb eq '')) &&
2255: ($status eq 'CAN_ANSWER')) {
2256: unless (@Apache::inputtags::partlist > 1) {
2257: $result.= <<"ENDJS";
2258: <script type="text/javascript">
2259: // <![CDATA[
2260: \$(document).ready(function() {
2261: \$('#LC_randomizetry_header').css('display','block');
2262: });
2263: // ]]>
2264: </script>
2265: ENDJS
2266: }
2267: }
2268: }
1.476 www 2269: }
1.159 albertel 2270: if ($target eq 'grade') {
2271: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
2272: &finalize_storage();
2273: }
1.284 albertel 2274: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
2275: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 2276: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 2277: # normally we get it from above, but in CSTR
1.172 albertel 2278: # we always show answer mode too.
1.159 albertel 2279: }
2280: } elsif ($target eq 'meta') {
2281: if ($Apache::inputtags::part eq '0') {
1.179 albertel 2282: @Apache::inputtags::response=();
1.159 albertel 2283: $result=&Apache::response::mandatory_part_meta;
2284: }
1.215 albertel 2285: $result.=&Apache::response::meta_part_order();
1.258 albertel 2286: $result.=&Apache::response::meta_response_order();
1.159 albertel 2287: } elsif ($target eq 'edit') {
2288: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 2289: $result .= &problem_edit_footer();
1.320 albertel 2290: } elsif ($target eq 'modified') {
2291: $result .= $token->[2];
1.159 albertel 2292: }
1.155 albertel 2293:
1.284 albertel 2294: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 2295: &Apache::inputtags::check_for_duplicate_ids();
2296: }
1.204 albertel 2297:
2298: &reset_problem_globals('problem');
1.159 albertel 2299:
1.502 foxr 2300: #
2301: # This shouild be just above the return so that the
2302: # time put in the javascript is as late as possible in the
2303: # computation:
2304: #
2305: if ($target eq 'web') {
1.512.2.24.2. (raeburn 2306:): $result .= &Apache::lonhtmlcommon::dash_to_minus_js().
2307:): &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 2308: #
2309: # Closing tags delayed so any <script></script> tags
2310: # not in head can appear inside body, for valid xhtml.
2311: #
2312: $result .= "</body>\n</html>";
1.502 foxr 2313: }
1.159 albertel 2314: return $result;
1.48 albertel 2315: }
2316:
1.108 albertel 2317:
1.48 albertel 2318: sub start_library {
1.159 albertel 2319: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 2320: my ($result,$form_tag_start);
1.371 albertel 2321: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 2322: &init_problem_globals('library');
2323: $Apache::lonhomework::type='problem';
2324: }
1.159 albertel 2325: if ($target eq 'edit') {
1.343 albertel 2326: ($result,$form_tag_start)=
2327: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2328: 'Edit');
2329: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 2330: my $temp=&Apache::edit::insertlist($target,$token);
2331: $result.=$temp;
2332: } elsif ($target eq 'modified') {
2333: $result=$token->[4];
1.340 albertel 2334: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 2335: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 2336: && $env{'request.state'} eq "construct" ) {
1.159 albertel 2337: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 2338: ($result,$form_tag_start)=
2339: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2340: $name);
1.479 raeburn 2341: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 2342: $result.=" \n $form_tag_start".
1.159 albertel 2343: '<input type="hidden" name="submitted" value="yes" />';
2344: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 2345: if ($Apache::lonhomework::type eq 'practice') {
1.512.2.24.2. 3(raebur 2346:4): $result.= '<button type="submit" name="resetdata" '.
2347:4): 'value="new_problem_variation">'.&mt('New Problem Variation').'</button>'.
1.428 raeburn 2348: &practice_problem_header().'<hr />';
2349: }
1.159 albertel 2350: }
2351: return $result;
1.48 albertel 2352: }
2353:
2354: sub end_library {
1.159 albertel 2355: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2356: my $result='';
2357: if ($target eq 'edit') {
2358: $result=&problem_edit_footer();
1.371 albertel 2359: } elsif ($target eq 'web'
2360: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
2361: && $env{'request.state'} eq "construct") {
1.349 albertel 2362: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.512.2.15 raeburn 2363: } elsif ($target eq 'meta') {
2364: $result.=&Apache::response::meta_response_order();
1.159 albertel 2365: }
1.371 albertel 2366: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
2367: &reset_problem_globals('library');
2368: }
1.159 albertel 2369: return $result;
1.197 www 2370: }
2371:
2372: sub start_definetag {
1.326 albertel 2373: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 2374:
2375: my $result;
2376:
2377: my $name = $token->[2]->{'name'};
1.326 albertel 2378: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 2379: if ($target eq 'web') {
2380: if ($name=~/^\//) {
2381: $result=
2382: '<br /><table class="LC_sty_end"><tr><th>'.
2383: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2384: } else {
2385: $result=
2386: '<br /><table class="LC_sty_begin"><tr><th>'.
2387: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2388: }
2389: $skip = &HTML::Entities::encode($skip, '<>&"');
2390: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 2391: }
2392: return $result;
2393: }
2394:
2395: sub end_definetag {
2396: return '';
1.1 albertel 2397: }
2398:
2399: sub start_block {
1.201 albertel 2400: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 2401:
2402: my $result;
1.1 albertel 2403:
1.339 albertel 2404: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2405: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 2406: my $code = $token->[2]->{'condition'};
1.385 albertel 2407: if (defined($code) && $code ne '') {
1.137 albertel 2408: if (!$Apache::lonxml::default_homework_loaded) {
2409: &Apache::lonxml::default_homework_load($safeeval);
2410: }
1.131 albertel 2411: $result = &Apache::run::run($code,$safeeval);
2412: &Apache::lonxml::debug("block :$code: returned :$result:");
2413: } else {
2414: $result='1';
2415: }
2416: if ( ! $result ) {
1.201 albertel 2417: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 2418: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2419: }
2420: $result='';
2421: } elsif ($target eq 'edit') {
2422: $result .=&Apache::edit::tag_start($target,$token);
2423: $result .=&Apache::edit::text_arg('Test Condition:','condition',
2424: $token,40);
2425: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2426: } elsif ($target eq 'modified') {
2427: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2428: $safeeval,'condition');
2429: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 2430: }
1.131 albertel 2431: return $result;
1.1 albertel 2432: }
2433:
2434: sub end_block {
1.167 www 2435: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2436: my $result;
2437: if ($target eq "edit") {
2438: $result.= &Apache::edit::tag_end($target,$token,'');
2439: }
2440: return $result;
2441: }
1.500 foxr 2442: #
2443: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
2444: # ...
2445: # </languageblock>
2446: #
2447: # This declares the intent to provide content that can be rendered in the
2448: # set of languages in the include specificatino but not in the exclude
2449: # specification. If a currently preferred language is in the include list
2450: # the content in the <languageblock>...</languageblock> is rendered
2451: # If the currently preferred language is in the exclude list,
2452: # the content in the <languageblock>..></languageblock is not rendered.
2453: #
2454: # Pathalogical case handling:
2455: # - Include specified, without the preferred language but exclude specified
2456: # also without the preferred langauge results in rendering the block.
2457: # - Exclude specified without include and excluden not containing a
2458: # preferred language renders the block.
2459: # - Include and exclude both specifying the preferred language does not
2460: # render the block.
2461: # - If neither include/exclude is specified, the block gets rendered.
2462: #
2463: # This tag has no effect when target is in {edit, modified}
2464: #
1.167 www 2465: sub start_languageblock {
1.201 albertel 2466: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 2467:
1.500 foxr 2468: my $result = '';
1.167 www 2469:
1.339 albertel 2470: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2471: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 2472: my $include = $token->[2]->{'include'};
2473: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 2474: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 2475:
2476: # This should not even happen, since we should at least have the server language
2477:
2478: if (!$preferred_languages[0]) {
2479: $preferred_languages[0]='en';
2480: }
2481:
2482: # Now loop over all languages in order of preference
2483:
2484: my $render;
1.398 www 2485: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 2486:
2487: # If neither include/nor exlude is present the block is going
2488: # to get rendered.
2489:
1.399 www 2490: my $found=0;
1.500 foxr 2491: $render=1;
2492:
2493: # If include is specified, don't render the block
2494: # unless the preferred language is included in the set.
2495:
1.398 www 2496: if ($include) {
1.500 foxr 2497: $render=0;
1.398 www 2498: foreach my $included_language (split(/\,/,$include)) {
2499: if ($included_language eq $preferred_language) {
1.500 foxr 2500: $render=1;
1.399 www 2501: $found=1;
1.500 foxr 2502: last; # Only need to find the first.
1.398 www 2503: }
2504: }
2505: }
1.500 foxr 2506: # Do we have an exclude argument?
2507: # If so, and one of the languages matches a preferred language
2508: # inhibit rendering the block. Note that in the pathalogical case the
2509: # author has specified a preferred language in both the include and exclude
2510: # attribte exclude is preferred.
2511:
1.398 www 2512: if ($exclude) {
1.500 foxr 2513: $render=1;
1.398 www 2514: foreach my $excluded_language (split(/\,/,$exclude)) {
2515: if ($excluded_language eq $preferred_language) {
1.500 foxr 2516: $render=0;
1.399 www 2517: $found=1;
1.500 foxr 2518: last; # Only need to find the first.
1.398 www 2519: }
2520: }
2521: }
1.500 foxr 2522: if ($found) {
2523: last; # Done on any match of include or exclude.
2524: }
1.398 www 2525: }
1.500 foxr 2526: # If $render not true skip the entire block until </languageblock>
2527: #
2528:
2529: if ( ! $render ) {
1.201 albertel 2530: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
2531: $style);
2532: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2533: }
1.500 foxr 2534: # If $render is true, we've not skipped the contents of the <languageglock>
2535: # and the normal loncapa processing flow will render it as a matter of course.
2536:
1.167 www 2537: } elsif ($target eq 'edit') {
2538: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2539: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 2540: $token,40);
1.211 albertel 2541: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 2542: $token,40);
2543: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2544: } elsif ($target eq 'modified') {
2545: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 2546: $safeeval,'include',
2547: 'exclude');
1.167 www 2548: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2549: }
2550: return $result;
2551: }
2552:
2553: sub end_languageblock {
1.170 www 2554: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2555: my $result;
1.201 albertel 2556: if ($target eq "edit") {
1.170 www 2557: $result.= &Apache::edit::tag_end($target,$token,'');
2558: }
2559: return $result;
2560: }
1.500 foxr 2561: # languagblock specific tags:
2562: {
2563: # For chunks of a resource that has translations, this hash contains
2564: # the translations available indexed by language name.
2565: #
2566:
2567: my %available_texts;
1.170 www 2568:
1.500 foxr 2569: # <translated> starts a block of a resource that has multiple translations.
2570: # See the <lang> tag as well.
2571: # When </translated> is encountered if there is a translation for the
2572: # currently preferred language, that is rendered inthe web/tex/webgrade
2573: # targets. Otherwise, the default text is rendered.
2574: #
2575: # Note that <lang> is only registered for the duration of the
2576: # <translated>...</translated> block
2577: #
2578: # Pathalogical case handling:
2579: # - If there is no <lang> that specifies a 'default' and there is no
2580: # translation that matches a preferred language, nothing is rendered.
2581: # - Nested <translated>...</translated> might be linguistically supported by
2582: # XML due to the stack nature of tag registration(?) however the rendered
2583: # output will be incorrect because there is only one %available_texts
2584: # has and end_translated clears it.
2585: # - Material outside of a <lang>...</lang> block within the
2586: # <translated>...<translated> block won't render either e.g.:
2587: # <translated>
2588: # The following will be in your preferred langauge:
2589: # <lang which='en'>
2590: # This section in english
2591: # </lang>
2592: # <lang which='sgeiso'>
2593: # Hier es ist auf Deutsch.
2594: # </lang>
2595: # <lang which='sfriso'>
2596: # En Francais
2597: # </lang>
2598: # </translated>
2599: #
2600: # The introductory text prior to the first <lang> tag is not rendered.
2601: #
1.397 albertel 2602: sub start_translated {
2603: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2604: &Apache::lonxml::register('Apache::structuretags',('lang'));
2605: undef(%available_texts);
2606: }
2607:
2608: sub end_translated {
2609: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2610: my $result;
2611: #show the translation on viewable targets
2612: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
2613: # or non-viewable targets, if it's embedded in something that
2614: # wants the output
2615: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
2616: && &Apache::lonxml::in_redirection() ) ) {
2617: my @possibilities = keys(%available_texts);
2618: my $which =
2619: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 2620: if ($target eq 'tex') {
2621: $result = &select_hyphenation($which);
2622: }
2623: $result .= $available_texts{$which};
2624: if ($target eq 'tex') {
2625: $result .= &select_metadata_hyphenation(); # Restore original language.
2626: }
1.397 albertel 2627: }
2628: undef(%available_texts);
2629: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
2630: return $result;
2631: }
2632:
1.500 foxr 2633: # <lang [which='language-name'] [other='lang1,lang2...']>
2634: # Specifies that the block contained within it is a translation
2635: # for a specific language specified by the 'which' attribute. The
2636: # 'other' attribute can be used by itself or in conjunction with
2637: # which to specify this tag _may_ be used as a translation for some
2638: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
2639: # specifying that the block provides a translation for US (primary)
2640: # Canadian, Australian and UK Englush.
2641: #
2642: # Comment: this seems a bit silly why not just support a list of languages
2643: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
2644: #
2645: # Effect:
2646: # The material within the <lang>..</lang> block is stored in the
2647: # specified set of $available_texts hash entries, the appropriate one
2648: # is selected at </translated> time.
2649: #
2650: # Pathalogical case handling:
2651: # If a language occurs multiple times within a <translated> block,
2652: # only the last one is rendered e.g.:
2653: #
2654: # <translated>
2655: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
2656: # Red green color blindness is quite common affecting about 7.8% of
2657: # the male population, but onloy about .65% of the female population.
2658: # </lang>
2659: # Red green colour blindness is quite common affecting about 7.8% of
2660: # the male population, but onloy about .65% of the female population.
2661: # <lang which='seniso', other='senisoCA,senisoAU'>
2662: # </translated>
2663: #
2664: # renders the correct spelling of color (colour) for people who have specified
2665: # a preferred language that is one of the British Commonwealth languages
2666: # even though those are also listed as valid selections for the US english
2667: # <lang> block.
2668: #
1.397 albertel 2669: sub start_lang {
2670: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2671: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2672: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2673: &Apache::lonxml::startredirection();
2674: }
2675: return '';
2676: }
2677:
2678: sub end_lang {
2679: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2680: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2681: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2682: my $result = &Apache::lonxml::endredirection();
2683: my $which = &Apache::lonxml::get_param('which',$parstack,
2684: $safeeval);
1.431 raeburn 2685: if ($which=~/\w/) {
2686: $available_texts{$which} = $result;
2687: }
2688: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
2689: $safeeval);
2690: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
2691: if ($language=~/\w/) {
2692: $available_texts{$language} = $result;
2693: }
1.427 bisitz 2694: }
2695:
1.397 albertel 2696: }
2697: return '';
2698: }
1.500 foxr 2699: } # end langauge block specific tags.
2700:
1.397 albertel 2701:
1.170 www 2702: sub start_instructorcomment {
1.201 albertel 2703: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 2704:
2705: my $result;
2706:
1.339 albertel 2707: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2708: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 2709: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 2710: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 2711: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
2712: $parser,$style);
1.170 www 2713: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2714: }
2715: $result='';
2716: } elsif ($target eq 'edit') {
2717: $result .=&Apache::edit::tag_start($target,$token);
2718: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2719: }
2720: return $result;
2721: }
2722:
2723: sub end_instructorcomment {
1.159 albertel 2724: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2725: my $result;
2726: if ($target eq "edit") {
2727: $result.= &Apache::edit::tag_end($target,$token,'');
2728: }
2729: return $result;
1.4 tsai 2730: }
2731:
2732: sub start_while {
1.326 albertel 2733: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2734:
1.160 albertel 2735: my $result;
1.339 albertel 2736: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2737: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2738: my $code = $token->[2]->{'condition'};
1.4 tsai 2739:
1.160 albertel 2740: push( @Apache::structuretags::whileconds, $code);
2741: if (!$Apache::lonxml::default_homework_loaded) {
2742: &Apache::lonxml::default_homework_load($safeeval);
2743: }
2744: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2745: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2746: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2747: push( @Apache::structuretags::whileline, $token->[5]);
2748: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2749: if ( $result ) {
2750: &Apache::lonxml::newparser($parser,\$bodytext);
2751: }
2752: } elsif ($target eq 'edit') {
2753: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2754: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2755: $token,40);
2756: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2757: } elsif ($target eq 'modified') {
2758: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2759: $safeeval,'condition');
2760: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2761: }
1.160 albertel 2762: return $result;
1.4 tsai 2763: }
2764:
2765: sub end_while {
1.159 albertel 2766: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2767: my $result;
2768:
1.339 albertel 2769: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2770: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2771: my $code = pop(@Apache::structuretags::whileconds);
2772: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2773: my $line = pop(@Apache::structuretags::whileline);
2774: my $return = &Apache::run::run($code,$safeeval);
2775: my $starttime=time;
2776: my $error=0;
2777: while ($return) {
2778: if (time-$starttime >
2779: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2780: $return = 0; $error=1; next;
1.161 albertel 2781: }
2782: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2783: if ($target eq 'grade' || $target eq 'answer' ||
2784: $target eq 'analyze') {
2785: # grade/answer/analyze should produce no output but if we
2786: # are redirecting, the redirecter should know what to do
2787: # with the output
2788: if (!$Apache::lonxml::redirection) { undef($result); }
2789: }
1.161 albertel 2790: $return = &Apache::run::run($code,$safeeval);
2791: }
1.512.2.5 raeburn 2792: if ($error) {
2793: &Apache::lonxml::error(
2794: '<pre>'
2795: .&mt('Code ran too long. It ran for more than [_1] seconds.',
2796: $Apache::lonnet::perlvar{'lonScriptTimeout'})
2797: .&mt('This occurred while running <while> on line [_1].',
2798: $line)
2799: .'</pre>');
2800: }
1.160 albertel 2801: } elsif ($target eq "edit") {
2802: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2803: }
1.160 albertel 2804: return $result;
1.1 albertel 2805: }
1.6 tsai 2806:
1.160 albertel 2807: # <randomlist show="1">
1.6 tsai 2808: # <tag1>..</tag1>
2809: # <tag2>..</tag2>
2810: # <tag3>..</tag3>
1.160 albertel 2811: # ...
1.6 tsai 2812: # </randomlist>
2813: sub start_randomlist {
1.326 albertel 2814: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2815: my $result;
1.339 albertel 2816: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2817: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2818: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2819: my $b_parser= HTML::LCParser->new(\$body);
2820: $b_parser->xml_mode(1);
2821: $b_parser->marked_sections(1);
1.159 albertel 2822: my $b_tok;
2823: my @randomlist;
2824: my $list_item;
2825: while($b_tok = $b_parser->get_token() ) {
2826: if($b_tok->[0] eq 'S') { # start tag
2827: # get content of the tag until matching end tag
2828: # get all text upto the matching tag
2829: # and push the content into @randomlist
2830: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2831: $b_parser);
2832: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2833: push(@randomlist,$list_item);
2834: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2835: # $list_item</b>";
2836: }
2837: if($b_tok->[0] eq 'T') { # text
2838: # what to do with text in between tags?
2839: # print "<b>TEXT $b_tok->[1]</b><br />";
2840: }
2841: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2842: # print "<b>END-TAG $b_tok->[1]</b><br />";
2843: # }
2844: }
1.303 albertel 2845: if (@randomlist) {
2846: my @idx_arr = (0 .. $#randomlist);
1.512.2.14 raeburn 2847: if ($env{'form.code_for_randomlist'}) {
2848: &Apache::structuretags::shuffle(\@idx_arr,$target);
2849: undef($env{'form.code_for_randomlist'});
2850: } else {
2851: &Apache::structuretags::shuffle(\@idx_arr);
2852: }
1.303 albertel 2853: my $bodytext = '';
2854: my $show=$#randomlist;
2855: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2856: $showarg--;
2857: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2858: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2859: my @currlist;
2860: my $part = $Apache::inputtags::part;
2861: if ($part ne '') {
2862: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2863: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2864: if (!(grep(/^\Q$part\E$/,@currlist))) {
2865: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2866: }
2867: } else {
2868: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2869: }
2870: }
2871: }
1.512.2.9 raeburn 2872: for my $i (0 .. $show) {
2873: $bodytext .= "$randomlist[ $idx_arr[$i] ]";
1.303 albertel 2874: }
2875: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2876: }
2877: } elsif ($target eq 'edit' ) {
2878: $result .=&Apache::edit::tag_start($target,$token);
2879: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2880: $token,5);
2881: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2882: } elsif ($target eq 'modified' ) {
2883: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2884: $safeeval,'show');
2885: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2886: }
2887: return $result;
1.7 tsai 2888: }
2889:
2890: sub shuffle {
1.512.2.14 raeburn 2891: my ($a,$target) = @_;
1.7 tsai 2892: my $i;
1.303 albertel 2893: if (ref($a) eq 'ARRAY' && @$a) {
1.512.2.14 raeburn 2894: &Apache::response::pushrandomnumber(undef,$target);
1.159 albertel 2895: for($i=@$a;--$i;) {
2896: my $j=int(&Math::Random::random_uniform() * ($i+1));
2897: next if $i == $j;
2898: @$a[$i,$j] = @$a[$j,$i];
2899: }
1.251 albertel 2900: &Apache::response::poprandomnumber();
1.7 tsai 2901: }
1.6 tsai 2902: }
2903:
2904: sub end_randomlist {
1.159 albertel 2905: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2906: my $result;
2907: if ($target eq 'edit' ) {
2908: $result=&Apache::edit::tag_end($target,$token,
2909: 'End Randomly Parsed Block');
2910: }
2911: return $result;
1.6 tsai 2912: }
2913:
1.283 albertel 2914: sub ordered_show_check {
2915: my $last_part=$Apache::inputtags::partlist[-2];
2916: my $in_order=
2917: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2918: my $in_order_show=1;
2919: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2920: $in_order_show=&Apache::response::check_status($last_part);
2921: }
2922: return $in_order_show;
2923: }
2924:
1.469 www 2925:
2926: sub start_startpartmarker {
2927: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2928: my $result='';
2929: if ($target eq 'edit') {
2930: $result=&Apache::edit::tag_start($target,$token);
2931: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2932: $result.=&Apache::edit::end_table();
2933:
2934: }
2935: return $result;
2936: }
2937:
2938: sub end_startpartmarker {
2939: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2940: my @result;
2941: if ($target eq 'edit') { $result[1]='no'; }
2942: return @result;
2943: }
2944:
2945: sub start_endpartmarker {
2946: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2947: my $result='';
2948: if ($target eq 'edit') {
2949: $result=&Apache::edit::tag_start($target,$token);
2950: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2951: $result.=&Apache::edit::end_table();
2952:
2953: }
2954: return $result;
2955: }
2956:
2957: sub end_endpartmarker {
2958: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2959: my @result;
2960: if ($target eq 'edit') { $result[1]='no'; }
2961: return @result;
2962: }
2963:
2964:
2965:
2966:
2967:
1.11 albertel 2968: sub start_part {
1.326 albertel 2969: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2970: if (!$Apache::lonxml::metamode) {
2971: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2972: # duedates.
2973: }
1.159 albertel 2974: my $result='';
1.386 albertel 2975: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2976: $Apache::inputtags::part=$id;
1.177 albertel 2977: push(@Apache::inputtags::partlist,$id);
1.512.2.10 raeburn 2978: $Apache::inputtags::leniency='';
1.177 albertel 2979: @Apache::inputtags::response=();
1.159 albertel 2980: @Apache::inputtags::previous=();
2981: @Apache::inputtags::previous_version=();
1.405 albertel 2982: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2983: &Apache::response::reset_params();
2984:
1.159 albertel 2985: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2986: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2987: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.512.2.9 raeburn 2988: if ($Apache::lonhomework::type eq 'randomizetry') {
2989: my $rndseed=&setup_rndseed($safeeval,$target);
2990: if (($target eq 'grade') && &Apache::response::submitted()) {
2991: $Apache::lonhomework::results{"resource.$id.rndseed"}=$rndseed;
2992: }
2993: } elsif (($target eq 'grade') && &Apache::response::submitted()) {
2994: $Apache::lonhomework::results{"resource.$id.rndseed"}=$Apache::lonhomework::rawrndseed;
2995: }
1.283 albertel 2996: my $in_order_show=&ordered_show_check();
1.214 albertel 2997: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2998: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2999: &Apache::run::run($expression,$safeeval);
1.159 albertel 3000:
3001: if ($target eq 'meta') {
1.224 www 3002: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
3003: return &Apache::response::mandatory_part_meta.
3004: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 3005: } elsif ($target eq 'web' || $target eq 'grade' ||
3006: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 3007: if ($hidden || !$in_order_show) {
1.326 albertel 3008: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 3009: } else {
3010: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
3011: push (@Apache::inputtags::status,$status);
3012: my $expression='$external::datestatus="'.$status.'";';
3013: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
3014: &Apache::run::run($expression,$safeeval);
1.284 albertel 3015: if ($env{'request.state'} eq 'construct') {
1.241 albertel 3016: &set_problem_state($Apache::inputtags::part);
1.240 albertel 3017: }
1.216 albertel 3018: if (( $status eq 'CLOSED' ) ||
3019: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 3020: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 3021: ( $status eq 'BANNED') ||
3022: ( $status eq 'UNAVAILABLE') ||
3023: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 3024: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
3025: $style);
1.159 albertel 3026: if ( $target eq "web" ) {
1.211 albertel 3027: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 3028: } elsif ( $target eq 'tex' ) {
1.284 albertel 3029: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 3030: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 3031: } else {
1.211 albertel 3032: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 3033: }
1.159 albertel 3034: }
3035: } else {
3036: if ($target eq 'tex') {
1.284 albertel 3037: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 3038: if ($$tagstack[-2] eq 'td') {
1.388 foxr 3039: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 3040: } else {
3041: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
3042: }
1.195 sakharuk 3043: }
1.159 albertel 3044: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 3045: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.512.2.9 raeburn 3046: my @allkeys = split(/,/,$allkeys);
1.222 sakharuk 3047: my $allow_print_points = 0;
3048: foreach my $partial_key (@allkeys) {
1.230 albertel 3049: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 3050: if ($1 ne '0') {$allow_print_points=1;}
3051: }
3052: }
1.275 albertel 3053: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
3054: if (defined($maxtries) && $maxtries < 0) {
3055: $allow_print_points=0;
3056: }
1.302 albertel 3057: if (lc($env{'course.'.$env{'request.course.id'}.
3058: '.disableexampointprint'}) eq 'yes') {
3059: $allow_print_points=0;
3060: }
1.463 foxr 3061: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 3062: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 3063:
3064: }
1.233 www 3065: } elsif ($target eq 'web') {
1.479 raeburn 3066: if ($status eq 'CAN_ANSWER') {
3067: my $problemstatus = &get_problem_status($Apache::inputtags::part);
3068: my $num = scalar(@Apache::inputtags::partlist)-1;
1.512.2.21 raeburn 3069: if ((($Apache::lonhomework::default_type eq 'randomizetry') ||
3070: ($Apache::lonhomework::randomizetrypart)) &&
3071: ($Apache::lonhomework::type ne 'randomizetry')) {
3072: $result .= &randomizetry_part_header($problemstatus,'none',$num);
3073: } elsif ($Apache::lonhomework::type eq 'randomizetry') {
3074: $Apache::lonhomework::randomizetrypart = 1;
3075: my $reqtries = &Apache::lonnet::EXT("resource.$id.randomizeontries");
1.479 raeburn 3076: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
3077: }
3078: }
1.475 raeburn 3079: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 3080: }
3081: }
3082: }
3083: } elsif ($target eq 'edit') {
3084: $result.=&Apache::edit::tag_start($target,$token);
3085: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
3086: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 3087: ' '.
3088: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 3089: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
3090: } elsif ($target eq 'modified') {
3091: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 3092: $safeeval,'id','display');
1.159 albertel 3093: if ($constructtag) {
1.225 albertel 3094: #limiting ids to only letters numbers, and space
1.224 www 3095: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 3096: $result = &Apache::edit::rebuild_tag($token);
3097: }
3098: }
3099: return $result;
1.11 albertel 3100: }
3101:
3102: sub end_part {
1.159 albertel 3103: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3104: &Apache::lonxml::debug("in end_part $target ");
3105: my $status=$Apache::inputtags::status['-1'];
3106: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 3107: my $in_order_show=&ordered_show_check();
1.321 albertel 3108: my $result;
3109: if (!$Apache::lonxml::metamode) {
3110: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 3111: $Apache::lonxml::post_evaluate=0;
1.321 albertel 3112: }
1.312 albertel 3113: if ($target eq 'grade') {
1.249 albertel 3114: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 3115: !$hidden && $in_order_show) {
1.311 foxr 3116: $result.=&Apache::inputtags::grade;
1.249 albertel 3117: } else {
3118: # move any submission data to .hidden
3119: &Apache::inputtags::hidealldata($Apache::inputtags::part);
3120: }
1.283 albertel 3121: } elsif (($target eq 'web' || $target eq 'tex') &&
3122: !$hidden && $in_order_show) {
1.159 albertel 3123: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
3124: $target);
1.490 raeburn 3125: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
3126: ($env{'form.grade_imsexport'})) {
1.212 albertel 3127: $gradestatus='';
3128: }
1.311 foxr 3129: $result.=$gradestatus;
1.512.2.24.2. (raeburn 3130:): if ($$tagstack[-2] eq 'td' and $target eq 'tex') {
3131:): if (not $env{'form.problem_split'}=~/yes/) {
3132:): $result.='\end{minipage}';
3133:): }
3134:): }
1.181 albertel 3135: } elsif ($target eq 'edit') {
1.311 foxr 3136: $result.=&Apache::edit::end_table();
1.322 albertel 3137: } elsif ($target eq 'modified') {
3138: $result .= $token->[2];
1.159 albertel 3139: }
3140: pop @Apache::inputtags::status;
3141: $Apache::inputtags::part='';
1.512.2.10 raeburn 3142: $Apache::inputtags::leniency='';
1.295 albertel 3143: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 3144: return $result;
1.11 albertel 3145: }
1.1 albertel 3146:
1.25 albertel 3147: sub start_preduedate {
1.326 albertel 3148: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 3149: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
3150: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 3151: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 3152: if (!$Apache::lonhomework::scantronmode &&
3153: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 3154: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
3155: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 3156: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 3157: }
1.24 albertel 3158: }
1.159 albertel 3159: return '';
1.24 albertel 3160: }
3161:
1.25 albertel 3162: sub end_preduedate {
1.159 albertel 3163: return '';
1.24 albertel 3164: }
3165:
1.369 foxr 3166: # In all the modes where <postanswerdate> text is
3167: # displayable, all we do is eat up the text between the start/stop
3168: # tags if the conditions are not right to display it.
1.25 albertel 3169: sub start_postanswerdate {
1.326 albertel 3170: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 3171: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
3172: &Apache::lonnet::allowed('pav',
3173: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 3174: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 3175: $target eq 'tex' ) {
1.300 albertel 3176: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 3177: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
3178: (($target eq 'tex') && !$pav)) {
1.326 albertel 3179: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 3180: }
3181: }
3182: return '';
1.24 albertel 3183: }
3184:
1.25 albertel 3185: sub end_postanswerdate {
1.159 albertel 3186: return '';
1.24 albertel 3187: }
3188:
1.25 albertel 3189: sub start_notsolved {
1.326 albertel 3190: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 3191: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 3192: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 3193: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
3194: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 3195: if ($gradestatus =~ /^correct/ &&
3196: &Apache::response::show_answer()) {
1.159 albertel 3197: &Apache::lonxml::debug("skipping");
1.326 albertel 3198: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 3199: }
1.24 albertel 3200: }
1.159 albertel 3201: return '';
1.24 albertel 3202: }
3203:
1.25 albertel 3204: sub end_notsolved {
1.159 albertel 3205: return '';
1.24 albertel 3206: }
3207:
3208: sub start_solved {
1.326 albertel 3209: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 3210: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
3211: $target eq 'tex') {
3212: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 3213: if ($gradestatus !~ /^correct/ ||
3214: !&Apache::response::show_answer()) {
1.326 albertel 3215: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 3216: }
1.24 albertel 3217: }
1.159 albertel 3218: return '';
1.24 albertel 3219: }
3220:
3221: sub end_solved {
1.248 albertel 3222: return '';
3223: }
3224:
3225: sub start_problemtype {
1.326 albertel 3226: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 3227: my $result;
1.339 albertel 3228: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
3229: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 3230: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
3231: if (!defined($mode)) { $mode='show'; }
3232: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
3233: my $found=0;
3234: foreach my $type (split(',',$for)) {
3235: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
3236: }
3237: if ($mode eq 'show' && !$found) {
1.326 albertel 3238: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 3239: }
3240: if ($mode eq 'hide' && $found) {
1.326 albertel 3241: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 3242: }
3243: } elsif ($target eq 'edit') {
3244: $result .=&Apache::edit::tag_start($target,$token);
3245: $result.=&Apache::edit::select_arg('Mode:','mode',
3246: [['show','Show'],
3247: ['hide','Hide']]
3248: ,$token);
3249: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.512.2.2 raeburn 3250: [ ['exam','Exam/Quiz Problem'],
1.248 albertel 3251: ['survey','Survey'],
1.465 raeburn 3252: ['surveycred','Survey (with credit)'],
3253: ['anonsurvey','Anonymous Survey'],
3254: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 3255: ['problem','Homework Problem'],
1.479 raeburn 3256: ['practice','Practice Problem'],
3257: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 3258: ,$token);
3259: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
3260: } elsif ($target eq 'modified') {
3261: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
3262: $safeeval,'mode','for');
3263: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
3264: }
3265: return $result;
3266: }
3267:
3268: sub end_problemtype {
1.159 albertel 3269: return '';
1.24 albertel 3270: }
1.34 albertel 3271:
3272: sub start_startouttext {
1.159 albertel 3273: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3274: my @result=(''.'');
3275: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 3276:
3277: my $nesting =
3278: &Apache::lonxml::set_state('outtext',
3279: &Apache::lonxml::get_state('outtext')+1);
3280: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
3281: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
3282: }
1.159 albertel 3283: return (@result);
1.34 albertel 3284: }
1.159 albertel 3285:
1.34 albertel 3286: sub end_startouttext {
1.326 albertel 3287: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 3288: my $result='';
3289: my $text='';
3290: if ($target eq 'edit') {
1.424 foxr 3291: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 3292: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.512.2.11 raeburn 3293: $result.=&Apache::edit::start_table($token)."<tr><td>".&Apache::loncommon::insert_folding_button()
3294: ." ".&mt('Text Block')."</td>"
1.438 bisitz 3295: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 3296: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 3297: .'</span></td>'
1.512.2.12 raeburn 3298: .'<td><span id="math_'.$areaid.'">';
1.512.2.24.2. 3(raebur 3299:4): if (&Apache::loncommon::nocodemirror()) {
1.512.2.12 raeburn 3300: $result.=&Apache::lonhtmlcommon::dragmath_button($areaid,1);
3301: } else {
3302: $result.=' ';
3303: }
3304: $result.='</span></td>'
1.474 raeburn 3305: .'<td>'
3306: .&Apache::edit::insertlist($target,$token)
3307: .'</td>'
1.512.2.5 raeburn 3308: .'<td class="LC_edit_problem_latexhelper">' .
1.474 raeburn 3309: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 3310: &Apache::edit::end_row().
1.362 albertel 3311: &Apache::edit::start_spanning_row()."\n".
1.255 www 3312: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 3313: }
3314: if ($target eq 'modified') {
1.219 albertel 3315: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 3316: }
3317: if ($target eq 'tex') {
3318: $result .= '\noindent ';
3319: }
3320: return $result;
1.34 albertel 3321: }
1.159 albertel 3322:
1.34 albertel 3323: sub start_endouttext {
1.159 albertel 3324: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3325: my $result='';
3326: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
3327: if ($target eq "modified") {
3328: $result='<endouttext />'.
1.377 albertel 3329: &Apache::edit::handle_insertafter('startouttext');
3330: }
1.404 albertel 3331:
3332: my $nesting =
3333: &Apache::lonxml::set_state('outtext',
3334: &Apache::lonxml::get_state('outtext')-1);
3335: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
3336: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
3337: &Apache::lonxml::set_state('outtext', 0);
3338: }
1.159 albertel 3339: return $result;
1.34 albertel 3340: }
1.159 albertel 3341:
1.34 albertel 3342: sub end_endouttext {
1.159 albertel 3343: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3344: my @result=('','');
3345: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
3346: return (@result);
1.34 albertel 3347: }
1.159 albertel 3348:
1.45 albertel 3349: sub delete_startouttext {
1.326 albertel 3350: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
3351: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 3352: my $text=$$parser['-1']->get_text("/endouttext");
3353: my $ntoken=$$parser['-1']->get_token();
3354: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
3355: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
3356: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
3357: # they did the last time round
3358: &Apache::lonxml::increasedepth($ntoken);
3359: &Apache::lonxml::decreasedepth($ntoken);
3360: return 1;
1.193 www 3361: }
3362:
3363: sub start_simpleeditbutton {
3364: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3365: my $result='';
1.284 albertel 3366: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 3367: ($target eq 'web') &&
1.330 albertel 3368: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 3369: my $url=$env{'request.noversionuri'};
1.193 www 3370: $url=~s/\?.*$//;
1.367 albertel 3371: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 3372: # Warning makes more sense and is more important on edit screen
1.442 bisitz 3373: # $result='<p class="LC_warning">'
3374: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
3375: # .&Apache::loncommon::help_open_topic('Caching')
3376: # .'</p>';
1.486 www 3377: $result.=&Apache::loncommon::head_subbox(
3378: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 3379: .&Apache::lonhtmlcommon::add_item_funclist(
3380: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
3381: .&mt('Edit').'</a>')
1.486 www 3382: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 3383:
1.193 www 3384: }
3385: return $result;
3386: }
3387:
3388: sub end_simpleeditbutton {
3389: return '';
1.45 albertel 3390: }
1.34 albertel 3391:
1.428 raeburn 3392: sub practice_problem_header {
3393: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
3394: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
3395: '</span>';
3396: }
3397:
1.479 raeburn 3398: sub randomizetry_problem_header {
1.512.2.21 raeburn 3399: my ($problemstatus,$reqtries,$symb) = @_;
1.479 raeburn 3400: my ($header,$text);
3401: if ($reqtries > 1) {
3402: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
3403: if (($problemstatus eq 'no') ||
3404: ($problemstatus eq 'no_feedback_ever')) {
3405: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3406: } else {
3407: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3408: }
3409: } else {
3410: $header = &mt('New Problem Variation Each Try');
3411: if (($problemstatus eq 'no') ||
3412: ($problemstatus eq 'no_feedback_ever')) {
3413: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
3414:
3415: } else {
3416: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
3417: }
3418: }
1.512.2.21 raeburn 3419: if (($env{'request.state'} eq "construct") || ($symb eq '')) {
3420: return '<div class="LC_info" id="LC_randomizetry_header" style="display:none">'.
3421: '<h3>'.$header.'</h3><span class="LC_info">'.$text.'</span><hr /></div>';
3422: } else {
3423: return '<h3 class="LC_info">'.$header.'</h3>'.
3424: '<span class="LC_info">'.$text.'</span><hr />';
3425: }
1.479 raeburn 3426: }
3427:
3428: sub randomizetry_part_header {
3429: my ($problemstatus,$reqtries,$num) = @_;
3430: my ($header,$text);
3431: if ($reqtries eq 'none') {
3432: $header = &mt('No Question Variation');
1.512.2.23 raeburn 3433: $text = &mt('For this question there will be no new variation after a try.');
1.479 raeburn 3434: } elsif ($reqtries > 1) {
3435: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
3436: if (($problemstatus eq 'no') ||
3437: ($problemstatus eq 'no_feedback_ever')) {
3438: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3439: } else {
3440: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3441: }
3442: } else {
3443: $header = &mt('New Question Variation For Each Try');
3444: if (($problemstatus eq 'no') ||
3445: ($problemstatus eq 'no_feedback_ever')) {
3446: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
3447: } else {
3448: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
3449: }
3450: }
3451: my $output;
3452: if ($num > 1) {
3453: $output .= '<hr />';
3454: }
3455: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
3456: '<span class="LC_info">'.$text.'</span><br /><br />';
3457: return $output;
3458: }
3459:
1.1 albertel 3460: 1;
3461: __END__
1.435 jms 3462:
3463: =pod
3464:
3465: =back
3466:
3467: =cut
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