Annotation of loncom/homework/structuretags.pm, revision 1.526
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.526 ! raeburn 4: # $Id: structuretags.pm,v 1.525 2014/11/28 18:23:04 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();
1.267 albertel 65: use Time::HiRes qw( gettimeofday tv_interval );
1.356 www 66: use lib '/home/httpd/lib/perl/';
67: use LONCAPA;
68:
1.78 harris41 69: BEGIN {
1.469 www 70: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','translated','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startpartmarker','startouttext','endpartmarker','endouttext','simpleeditbutton','definetag'));
1.10 albertel 71: }
72:
1.500 foxr 73:
74: #---------------------------------------------------------------------------------
75: #
76: # This section of code deals with hyphenation management.
77: # We must do three things:
78: # - keep track fo the desired languages to alter the header.
79: # - provide hyphenation selection as needed by each language that appears in the
80: # text.
81: # - Provide the header text needed to make available the desired hyphenations.
82: #
83: #
84:
85: # Hash whose keys are the languages encountered in the document/resource.
86: #
87:
88: my %languages_required;
89: ##
90: # Given a language selection as input returns a chunk of LaTeX that
91: # selects the required hyphenator.
92: #
93: # @param language - the language being selected.
94: # @return string
95: # @retval The LaTeX needed to select the hyphenation appropriate to the language.
96: #
97: sub select_hyphenation {
98: my $language = shift;
99:
100: $language = &Apache::loncommon::latexlanguage($language); # Translate -> latex language.
101:
102: # If there is no latex language there's not much we can do:
103:
104: if ($language) {
105: &require_language($language);
106: my $babel_hyphenation = "\\selectlanguage{$language}";
107:
108: return $babel_hyphenation;
109: } else {
110: return '';
111: }
112: }
113: ##
114: # Selects hyphenation based on the current problem metadata.
115: # This requires that
116: # - There is a language metadata item set for the problem.
117: # - The language has a latex/babel hyphenation.
118: #
119: # @note: Uses &Apache::lonxml::request to locate the Uri associated with
120: # this problem.
121: # @return string (possibly empty).
122: # @retval If not empty an appropriate \selectlanguage{} directive.
123: #
124: sub select_metadata_hyphenation {
125: my $uri = $Apache::lonxml::request->uri;
126: my $language = &Apache::lonnet::metadata($uri, 'language');
127: my $latex_language = &Apache::loncommon::latexhyphenation($language);
128: if ($latex_language) {
129: return '\selectlanguage{'.$latex_language."}\n";
130: }
131: return ''; # no latex hyphenation or no lang metadata.
132: }
133:
134:
135: ##
136: # Clears the set of languages required by the document being rendered.
137: #
138: sub clear_required_languages {
139: %languages_required = ();
140: }
141: ##
142: # Allows an external client of this module to register a need for a language:
143: #
144: # @param LaTeX language required:
145: #
146: sub require_language {
147: my $language = shift;
148: $languages_required{$language} = 1;
149: }
150:
151: ##
152: # Provides the header for babel that indicates the languages
153: # the document requires.
154: # @return string
155: # @retval \usepackage[lang1,lang2...]{babel}
156: # @retval '' if there are no languages_required.
157: sub languages_header {
158: my $header ='';
159: my @languages = (keys(%languages_required));
160:
161: # Only generate the header if there are languages:
162:
163: if (scalar @languages) {
164: my $language_list = join(',', (@languages));
165: $header = '\usepackage['.$language_list."]{babel}\n";
166: }
167: return $header;
168: }
169:
170: #----------------------------------------------------------------------------------
171:
1.10 albertel 172: sub start_web {
1.326 albertel 173: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 174: if ($target ne 'edit' && $target ne 'modified') {
175: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
176: if ($target eq 'web' || $target eq 'webgrade') {
177: return $bodytext;
178: }
179: } elsif ($target eq "edit" ) {
180: my $bodytext =
181: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
182: my $result = &Apache::edit::tag_start($target,$token);
183: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
184: return $result;
185: } elsif ( $target eq "modified" ) {
186: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 187: }
188: return '';
1.10 albertel 189: }
190:
191: sub end_web {
1.44 ng 192: return '';
1.10 albertel 193: }
194:
195: sub start_tex {
1.326 albertel 196: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 197: my $result='';
1.383 albertel 198: if ($target ne 'edit' && $target ne 'modified') {
199: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
200: if ($target eq 'tex') {
1.434 foxr 201:
202: # If inside a table, occurrences of \\ must be removed;
203: # else the table blows up.
204:
205: if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
206: $bodytext =~ s/\\\\//g;
207: }
1.432 foxr 208: return $bodytext.'{}';
1.383 albertel 209: }
210: } elsif ($target eq "edit" ) {
211: my $bodytext =
212: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
213: my $result = &Apache::edit::tag_start($target,$token);
214: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
215: return $result;
216: } elsif ( $target eq "modified" ) {
217: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 218: }
1.198 sakharuk 219: return $result;;
1.10 albertel 220: }
221:
222: sub end_tex {
1.44 ng 223: return '';
1.9 albertel 224: }
225:
1.400 albertel 226: sub homework_js {
227: return &Apache::loncommon::resize_textarea_js().
1.416 raeburn 228: &setmode_javascript().
1.400 albertel 229: <<'JS';
230: <script type="text/javascript">
1.483 raeburn 231: // <![CDATA[
1.494 raeburn 232: function setSubmittedPart (part,prefix) {
233: if (typeof(prefix) == 'undefined') {
234: this.document.lonhomework.submitted.value="part_"+part;
235: } else {
236: for (var i=0;i<this.document.lonhomework.elements.length;i++) {
237: if (this.document.lonhomework.elements[i].name == prefix+'submitted') {
238: this.document.lonhomework.elements[i].value="part_"+part;
239: }
240: }
241: }
1.400 albertel 242: }
243:
244: function image_response_click (which, e) {
245: init_geometry();
246: if (!e) { e = window.event; } //IE
247: var input_element = document.lonhomework.elements[which];
1.401 albertel 248: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 249: var token = token_element.value;
1.401 albertel 250: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 251: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
252: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
253: var click = x+':'+y;
254: input_element.value = click;
1.485 raeburn 255: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
1.400 albertel 256: }
1.520 raeburn 257:
258: var submithandled = 0;
1.521 raeburn 259: var keypresshandled = 0;
1.520 raeburn 260:
261: $(document).ready(function(){
1.521 raeburn 262:
263: $(document).keypress(function(event){
264: var keycode = (event.keyCode ? event.keyCode : event.which);
265: if ((keycode == '13') && (keypresshandled == 0)) {
266: if ( $( document.activeElement ).hasClass("LC_textline") ) {
267: keypresshandled = 1;
268: var idsArray = $( document.activeElement ).attr("id").split(/HWVAL_/);
269: if (idsArray.length) {
270: event.preventDefault();
271: var itemsArray = idsArray[1].split(/_/);
272: var buttonId = idsArray[0]+'submit_'+itemsArray[0];
273: $("#"+buttonId).trigger("click");
274: }
275: }
276: }
277: });
278:
1.520 raeburn 279: $(document).delegate('form :submit', 'click', function( event ) {
280: if ( $( this ).hasClass( "LC_hwk_submit" ) ) {
281: var buttonId = this.id;
282: if (submithandled == 0) {
283: submithandled = 1;
284: $( "#msg_"+buttonId ).css({"display": "inline","background-color": "#87cefa",
1.521 raeburn 285: "color": "black","padding": "2px"}) ;
286: if (( $(this.form).id == "LC_page" ) && ($('input[name="all_submit"]').length )) {
1.522 raeburn 287: if (buttonId != "all_submit") {
288: $( ".LC_status_"+buttonId ).hide();
289: if (( "#"+buttonId+"_pressed" ).length) {
290: $( "#"+buttonId+"_pressed" ).val( "1" );
291: }
1.520 raeburn 292: }
1.522 raeburn 293: } else {
294: $( ".LC_status_"+buttonId ).hide();
1.520 raeburn 295: }
296: $(this.form).submit();
1.521 raeburn 297: $( ".LC_hwk_submit" ).prop( "disabled", true);
298: $( ".LC_textline" ).prop( "readonly", "readonly");
1.520 raeburn 299: event.preventDefault();
300: return true;
301: }
302: }
303: });
304: });
305:
1.483 raeburn 306: // ]]>
1.400 albertel 307: </script>
308: JS
309: }
310:
1.416 raeburn 311: sub setmode_javascript {
312: return <<"ENDSCRIPT";
313: <script type="text/javascript">
1.485 raeburn 314: // <![CDATA[
1.416 raeburn 315: function setmode(form,probmode) {
316: form.problemmode.value = probmode;
317: form.submit();
318: }
1.485 raeburn 319: // ]]>
1.416 raeburn 320: </script>
321: ENDSCRIPT
322: }
323:
1.48 albertel 324: sub page_start {
1.345 albertel 325: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
326: $extra_head)=@_;
1.159 albertel 327: my %found;
1.207 albertel 328: foreach my $taginside (@$tagstack) {
1.159 albertel 329: foreach my $taglookedfor ('html','body','form') {
330: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
331: }
332: }
333:
1.343 albertel 334: if ($target eq 'tex') {
335: return
336: &Apache::londefdef::start_html($target,$token,$tagstack,
337: $parstack,$parser,$safeeval);
338: }
339:
1.474 raeburn 340: $extra_head .= &homework_js().
341: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
342: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
343: my %textarea_args = (
344: dragmath => 'math',
345: );
346: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 347: }
1.478 raeburn 348: my $is_task = ($env{'request.uri'} =~ /\.task$/);
1.493 raeburn 349: my $needs_upload;
1.495 raeburn 350: my ($symb)= &Apache::lonnet::whichuser();
351: my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
1.478 raeburn 352: if ($is_task) {
1.495 raeburn 353: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
1.493 raeburn 354: } else {
355: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.uploadedfiletypes") ne '') {
1.495 raeburn 356: unless ($env{'request.state'} eq 'construct') {
357: my $navmap = Apache::lonnavmaps::navmap->new();
358: if (ref($navmap)) {
359: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 360: my $is_page;
361: if (ref($mapres)) {
362: $is_page = $mapres->is_page();
363: }
364: unless ($is_page) {
1.495 raeburn 365: $needs_upload = 1;
366: }
367: }
368: }
1.493 raeburn 369: } else {
370: unless ($env{'request.state'} eq 'construct') {
371: my $navmap = Apache::lonnavmaps::navmap->new();
372: if (ref($navmap)) {
1.495 raeburn 373: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 374: my $is_page;
375: if (ref($mapres)) {
376: $is_page = $mapres->is_page();
377: }
378: unless ($is_page) {
1.495 raeburn 379: my $res = $navmap->getBySymb($symb);
380: if (ref($res)) {
381: my $partlist = $res->parts();
382: if (ref($partlist) eq 'ARRAY') {
383: foreach my $part (@{$partlist}) {
384: my @types = $res->responseType($part);
385: my @ids = $res->responseIds($part);
386: for (my $i=0; $i < scalar(@ids); $i++) {
387: if ($types[$i] eq 'essay') {
388: my $partid = $part.'_'.$ids[$i];
389: if (&Apache::lonnet::EXT("resource.$partid.uploadedfiletypes") ne '') {
390: $needs_upload = 1;
391: last;
392: }
1.493 raeburn 393: }
394: }
395: }
1.495 raeburn 396: }
397: }
1.493 raeburn 398: }
399: }
400: }
401: }
1.495 raeburn 402: if ($needs_upload) {
403: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
404: }
1.478 raeburn 405: }
1.425 raeburn 406:
1.344 albertel 407: my %body_args;
408: if (defined($found{'html'})) {
409: $body_args{'skip_phases'}{'head'}=1;
410: } else {
1.343 albertel 411:
1.345 albertel 412: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 413:
1.379 albertel 414: $extra_head .= &Apache::londefdef::generate_css_links();
415:
1.384 albertel 416: if ($env{'request.state'} eq 'construct') {
1.343 albertel 417: $extra_head.=&Apache::edit::js_change_detection().
418: "<script type=\"text/javascript\">\n".
419: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
420: &Apache::loncommon::browser_and_searcher_javascript().
421: "\n</script>\n";
1.525 raeburn 422: if ($target eq 'edit') {
423: $extra_head .= &Apache::edit::js_update_linknum();
424: }
1.343 albertel 425: }
1.159 albertel 426: }
1.343 albertel 427:
1.446 bisitz 428: my $pageheader = '';
1.344 albertel 429: if (defined($found{'body'})) {
430: $body_args{'skip_phases'}{'body'}=1;
431: } elsif (!defined($found{'body'})
432: && $env{'request.state'} eq 'construct') {
1.343 albertel 433: if ($target eq 'web' || $target eq 'edit') {
1.513 raeburn 434: # Breadcrumbs for Authoring Space
1.450 bisitz 435: &Apache::lonhtmlcommon::clear_breadcrumbs();
436: &Apache::lonhtmlcommon::add_breadcrumb({
1.513 raeburn 437: 'text' => 'Authoring Space',
1.497 raeburn 438: 'href' => &Apache::loncommon::authorspace($env{'request.uri'}),
1.450 bisitz 439: });
1.460 droeschl 440: # breadcrumbs (and tools) will be created
441: # in start_page->bodytag->innerregister
442:
1.450 bisitz 443: # FIXME Where are we?
444: # &Apache::lonhtmlcommon::add_breadcrumb({
445: # 'text' => 'Problem Editing', # 'Problem Testing'
446: # 'href' => '',
447: # });
1.460 droeschl 448: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 449: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 450: }
1.272 albertel 451: } elsif (!defined($found{'body'})) {
1.343 albertel 452: my %add_entries;
1.159 albertel 453: my $background=&Apache::lonxml::get_param('background',$parstack,
454: $safeeval);
1.343 albertel 455: if ($background ne '' ) {
456: $add_entries{'background'} = $background;
457: }
1.344 albertel 458:
1.290 albertel 459: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
460: $safeeval);
1.446 bisitz 461: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 462:
1.446 bisitz 463: $body_args{'bgcolor'} = $bgcolor;
464: # $body_args{'no_title'} = 1;
465: $body_args{'force_register'} = 1;
466: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 467: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 468: $body_args{'only_body'} = 1;
1.518 raeburn 469: } elsif ($target eq 'web') {
470: $body_args{'print_suppress'} = 1;
1.446 bisitz 471: }
1.344 albertel 472: }
1.365 albertel 473: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 474: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
475: \%body_args);
1.446 bisitz 476: $page_start .= $pageheader;
1.462 raeburn 477: if (!defined($found{'body'})
478: && $env{'request.state'} ne 'construct'
479: && ($target eq 'web' || $target eq 'webgrade')) {
480:
481: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
482: if ($symb eq '' && !$publicuser) {
483: $page_start .= '<p class="LC_info">'
484: .&mt('Browsing resource, all submissions are temporary.')
485: .'</p>';
1.457 bisitz 486: }
1.344 albertel 487: }
488:
1.409 albertel 489: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 490: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 491: }
492: my $form_tag_start;
493: if (!defined($found{'form'})) {
1.337 albertel 494: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 495: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 496: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 497: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 498: $form_tag_start.=$uri.'" ';
499: if ($target eq 'edit') {
500: $form_tag_start.=&Apache::edit::form_change_detection();
501: }
1.493 raeburn 502: my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
503: my ($path,$multiresp) =
504: &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
1.495 raeburn 505: if (($is_task) || ($needs_upload)) {
506: $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
1.478 raeburn 507: }
1.368 albertel 508: $form_tag_start.='>'."\n";
1.355 albertel 509:
510: if ($symb =~ /\S/) {
511: $symb=
512: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
513: $form_tag_start.=
1.368 albertel 514: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 515: }
1.159 albertel 516: }
1.343 albertel 517: return ($page_start,$form_tag_start);
1.105 albertel 518: }
519:
1.141 matthew 520: #use Time::HiRes();
1.105 albertel 521: sub get_resource_name {
1.159 albertel 522: my ($parstack,$safeeval)=@_;
1.388 foxr 523: my $name;
1.204 albertel 524: if (defined($Apache::lonhomework::name)) {
1.388 foxr 525: $name = $Apache::lonhomework::name;
526: } else {
527: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 528: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 529: if ($name eq '') {
530: $name=&Apache::lonnet::EXT('resource.title');
531: if ($name eq 'con_lost') { $name = ''; }
532: }
533: if ($name!~/\S+/) {
534: $name=$env{'request.uri'};
535: $name=~s-.*/([^/]+)$-$1-;
536: }
537: # The name has had html tags escaped:
538:
539: $name=~s/</</gs;
540: $name=~s/>/>/gs;
541:
542: $Apache::lonhomework::name=$name;
1.204 albertel 543: }
1.159 albertel 544: return $name;
1.105 albertel 545: }
546:
547: sub setup_rndseed {
1.479 raeburn 548: my ($safeeval,$target)=@_;
1.367 albertel 549: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 550: my ($questiontype,$set_safespace,$rndseed);
551: if ($target eq 'analyze') {
552: $questiontype = $env{'form.grade_questiontype'};
553: }
554: unless (defined($questiontype)) {
555: $questiontype = $Apache::lonhomework::type;
556: }
1.333 albertel 557: if ($env{'request.state'} eq "construct"
558: || $symb eq ''
559: || $Apache::lonhomework::type eq 'practice'
560: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 561: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 562: ['rndseed']);
1.284 albertel 563: $rndseed=$env{'form.rndseed'};
1.159 albertel 564: if (!$rndseed) {
1.162 albertel 565: $rndseed=$Apache::lonhomework::history{'rndseed'};
566: if (!$rndseed) {
567: $rndseed=time;
568: }
1.284 albertel 569: $env{'form.rndseed'}=$rndseed;
1.162 albertel 570: }
1.479 raeburn 571: if (($env{'request.state'} eq "construct") &&
572: ($Apache::lonhomework::type eq 'randomizetry')) {
573: my $tries = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
574: if ($tries) {
575: $rndseed += $tries;
576: }
1.480 raeburn 577: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 578: }
1.374 albertel 579: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
580: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 581: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 582: srand(time);
583: $rndseed=int(rand(2100000000));
1.284 albertel 584: $env{'form.rndseed'}=$rndseed;
585: delete($env{'form.resetdata'});
586: delete($env{'form.newrandomization'});
1.159 albertel 587: }
1.488 www 588: $rndseed=~s/\,/\:/g;
589: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 590: if (defined($rndseed)) {
591: my ($c1,$c2)=split(/\:/,$rndseed);
592: unless ($c2) { $c2=0; }
593: unless (($c1==int($c1)) && ($c2==int($c2))) {
594: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
595: }
1.187 albertel 596: }
1.247 albertel 597: if ($Apache::lonhomework::history{'resource.CODE'}) {
598: $rndseed=&Apache::lonnet::rndseed();
599: }
1.479 raeburn 600: $set_safespace = 1;
601: } elsif ($questiontype eq 'randomizetry') {
602: if ($target eq 'analyze') {
603: if (defined($env{'form.grade_rndseed'})) {
604: $rndseed = $env{'form.grade_rndseed'};
605: }
606: }
607: unless (($target eq 'analyze') && (defined($rndseed))) {
608: $rndseed=&Apache::lonnet::rndseed();
609: my $curr_try = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
610: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
611: $curr_try ++;
612: }
613: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
614: $rndseed = $1;
615: }
616: if ($curr_try) {
617: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
618: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
619: my $inc = int(($curr_try-1)/$reqtries);
620: $rndseed += $inc;
621: } else {
622: $rndseed += $curr_try;
623: }
624: }
625: }
626: $set_safespace = 1;
627: }
628: if ($set_safespace) {
629: if ($safeeval) {
630: &Apache::lonxml::debug("Setting rndseed to $rndseed");
631: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
632: }
633: }
634: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
635: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 636: }
637: return $rndseed;
1.105 albertel 638: }
639:
1.268 albertel 640: sub remember_problem_state {
641: return '
1.284 albertel 642: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
643: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
644: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 645: }
646:
1.487 www 647: sub problem_edit_action_button {
648: my ($name,$action,$accesskey,$text,$flag)=@_;
649: my $actionscript="setmode(this.form,'$action')";
650: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
651: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
652: }
653:
1.423 www 654: sub problem_edit_buttons {
1.487 www 655: my ($mode)=@_;
656: # Buttons that do not save
657: my $result='<div class="LC_edit_problem_discards">'.
658: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
659: if ($mode eq 'editxml') {
660: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
661: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
662: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
663: } else {
664: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
665: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
666: }
667: $result.="\n</div>";
668: # Buttons that save
669: $result.='<div class="LC_edit_problem_saves">';
670: if ($mode eq 'editxml') {
671: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
672: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
673: } else {
674: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
675: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
676: }
677: $result.="\n</div>\n";
678: return $result;
1.423 www 679: }
680:
681: sub problem_edit_header {
1.487 www 682: return '<input type="hidden" name="submitted" value="edit" />'.
683: &remember_problem_state('edit').'
1.423 www 684: <div class="LC_edit_problem_header">
685: <div class="LC_edit_problem_header_title">
686: '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
687: </div>'.
1.487 www 688: '<input type="hidden" name="problemmode" value="saveedit" />'.
1.423 www 689: &problem_edit_buttons().'
1.459 bisitz 690: <hr style="clear:both;" />
1.409 albertel 691: '.&Apache::lonxml::message_location().'
1.408 albertel 692: </div>
693: '.
1.515 golterma 694: '<table id="LC_edit_problem_colorful" border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
1.105 albertel 695: }
696:
697: sub problem_edit_footer {
1.412 albertel 698: return '</td></tr></table><br />
699: <div class="LC_edit_problem_footer">
1.453 bisitz 700: <hr />'.
1.423 www 701: &problem_edit_buttons().'
1.459 bisitz 702: <hr style="clear:both;" />
1.412 albertel 703: </div>
704: '.
1.342 albertel 705: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 706: }
707:
1.235 albertel 708: sub option {
709: my ($value,$name) = @_;
710: my $result ="<option value='".$value."' ";
1.284 albertel 711: if ($env{'form.'.$name} eq $value) {
1.235 albertel 712: $result.=" selected='on' ";
713: }
714: $result.='>';
715: return $result;
716: }
717:
1.105 albertel 718: sub problem_web_to_edit_header {
1.159 albertel 719: my ($rndseed)=@_;
1.406 albertel 720: my $result .= '<div class="LC_edit_problem_header">';
721:
722: if (!$Apache::lonhomework::parsing_a_task) {
723: $result .=
724: '<div class="LC_edit_problem_header_title">'.
725: &mt('Problem Testing').
726: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
727: '</div>';
728: } else {
729: $result .=
730: '<div class="LC_edit_problem_header_title">'.
731: &mt('Task Testing').
732: '</div>';
733: }
734:
1.315 albertel 735: my $show_all_foils_text =
736: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 737: &mt('Show All Instances')
738: : &mt('Show All Foils');
1.315 albertel 739:
1.452 bisitz 740: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
741: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 742: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 743: $show_all.= ' /> '.$show_all_foils_text
744: .'</label></span>';
1.406 albertel 745:
746:
1.384 albertel 747:
1.406 albertel 748: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 749: if (!$Apache::lonhomework::parsing_a_task) {
750: $result.="
1.406 albertel 751: <div class='LC_edit_problem_header_row1'>
752: <span class=\"LC_nobreak\">
1.405 albertel 753: ".&mt("Problem Status:")."
1.235 albertel 754: <select name='problemstate'>
1.270 albertel 755: <option value=''></option>
1.235 albertel 756: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
757: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
758: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
759: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
760: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
761: </select>
1.406 albertel 762: </span>
763: <span class=\"LC_nobreak\">
1.405 albertel 764: ".&mt("Problem Type:")."
1.235 albertel 765: <select name='problemtype'>
1.270 albertel 766: <option value=''></option>
1.509 bisitz 767: ".&option('exam' ,'problemtype').&mt("Bubblesheet Exam Problem")."</option>
1.428 raeburn 768: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 769: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 770: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
771: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
772: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 773: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 774: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 775: </select>
1.406 albertel 776: </span>
777: $show_all
778: </div>
779: <div class='LC_edit_problem_header_row2'>
780: <span class=\"LC_nobreak\">
1.405 albertel 781: ".&mt("Feedback Mode:")."
1.235 albertel 782: <select name='problemstatus'>
783: <option value=''></option>
1.242 albertel 784: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.517 bisitz 785: ".&option('no', 'problemstatus').&mt("Don't Show Incorrect/Correct Feedback")."</option>
1.405 albertel 786: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 787: </select>
1.406 albertel 788: </span>
789: ";
790:
1.376 albertel 791: } elsif ($Apache::lonhomework::parsing_a_task) {
792: $result.="
1.406 albertel 793: <div class='LC_edit_problem_header_row1'>
794: <span class=\"LC_nobreak\">
1.405 albertel 795: ".&mt("Problem Status:")."
1.376 albertel 796: <select name='problemstate'>
797: <option value=''></option>
798: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
799: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
800: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
801: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
802: </select>
1.406 albertel 803: </span>
804: $show_all
805: ";
806: }
807: $result.='
808: <span class="LC_nobreak">
809: '.&mt('Apply style file: ').'
810: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
811: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
812: </span>
1.422 www 813: </div>
814: <div class="LC_edit_problem_header_row1">'.
815: &Apache::lonxml::renderingoptions().'
1.406 albertel 816: </div>
817: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
818: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
819: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
820: </div>
1.453 bisitz 821: <hr />
1.406 albertel 822: <div class="LC_edit_problem_header_randomize_row">
823: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
824: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 825: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 826: $rndseed.'"
827: onchange="javascript:document.lonhomework.changerandseed.click()" />';
828:
829: if (!$Apache::lonhomework::parsing_a_task) {
830: my $numtoanalyze=$env{'form.numtoanalyze'};
831: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 832: $result .= '<span class="LC_nobreak">'.
833: &mt('[_1] for [_2] versions.',
1.416 raeburn 834: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 835: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
836: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 837: $numtoanalyze.'" size="5" />').
838: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
839: '</span>';
840:
1.313 albertel 841: }
1.406 albertel 842:
843: $result.='
844: </div>
1.453 bisitz 845: <hr />
1.447 bisitz 846: <div>';
1.416 raeburn 847: $result.='<input type="hidden" name="problemmode" value="view" />';
848: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
849: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
850: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
851: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 852: $result.='
853: </div>
1.453 bisitz 854: <hr />
1.409 albertel 855: '.&Apache::lonxml::message_location().'
1.406 albertel 856: </div>';
1.159 albertel 857: return $result;
1.48 albertel 858: }
859:
1.65 albertel 860: sub initialize_storage {
1.357 albertel 861: my ($given_symb) = @_;
1.353 albertel 862: undef(%Apache::lonhomework::results);
863: undef(%Apache::lonhomework::history);
1.357 albertel 864: my ($symb,$courseid,$domain,$name) =
1.367 albertel 865: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 866:
867: # anonymous users (CODEd exams) have no data
868: if ($name eq 'anonymous'
869: && !defined($domain)) {
870: return;
871: }
872:
1.333 albertel 873: if ($env{'request.state'} eq 'construct'
874: || $symb eq ''
875: || $Apache::lonhomework::type eq 'practice') {
876:
877: my $namespace = $symb || $env{'request.uri'};
878: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 879: ($env{'form.resetdata'} eq &mt('New Problem Variation')
880: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 881: $env{'form.newrandomization'} eq &mt('New Randomization')) {
882: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
883: &Apache::lonxml::debug("Attempt reset");
884: }
1.159 albertel 885: %Apache::lonhomework::history=
1.333 albertel 886: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.526 ! raeburn 887: my ($temp)=keys(%Apache::lonhomework::history) ;
1.159 albertel 888: &Apache::lonxml::debug("Return message of $temp");
889: } else {
890: %Apache::lonhomework::history=
891: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
892: }
1.353 albertel 893:
1.159 albertel 894: #ignore error conditions
1.526 ! raeburn 895: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 896: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 897: }
898:
1.435 jms 899: =pod
900:
901: =item finalize_storage()
902:
1.524 raeburn 903: Stores away the result hash to a student's environment;
1.523 raeburn 904: checks form.grade_ for specific values, otherwise stores
905: to the running user's environment.
1.524 raeburn 906:
907: &check_correctness_changes() is called in two circumstances
908: in which the results hash is to be stored permanently, for
909: grading triggered by a student's submission, where feedback on
910: correctness is to be provided to the student.
911:
912: 1. Immediately prior to storing the results hash
913:
914: To handle the case where a student's submission (and award) were
915: stored after history was retrieved in &initialize_storage(), e.g.,
916: if a student submitted answers in quick succession (e.g., from
917: multiple tabs). &Apache::inputtags::hidealldata() is called for
918: any parts with out-of-order storage (i.e., correct then incorrect,
919: where awarded >= 1 when correct).
920:
921: 2. Immediately after storing the results hash
922:
923: To handle the case where lond on the student's homeserver returns
924: delay:N -- where N is the number of transactions between the last
925: retrieved in &initialize_storage() and the last stored immediately
926: before permanent storage of the current transaction via
927: lond::store_handler(). &Apache::grades::makehidden() is called
928: for any parts with out-of-order storage (i.e., correct then incorrect,
929: where awarded >= 1 when correct).
930:
931: Will call &store_aggregates() to increment totals for attempts,
932: students, and corrects, if running user has student role.
933:
1.435 jms 934: =cut
935:
936:
1.65 albertel 937: sub finalize_storage {
1.357 albertel 938: my ($given_symb) = @_;
1.159 albertel 939: my $result;
1.289 albertel 940: if (%Apache::lonhomework::results) {
1.323 albertel 941: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
942: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 943: my ($symb,$courseid,$domain,$name) =
1.367 albertel 944: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 945: if ($env{'request.state'} eq 'construct'
946: || $symb eq ''
947: || $Apache::lonhomework::type eq 'practice') {
948: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 949: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 950: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 951: $namespace,'',$domain,$name);
1.159 albertel 952: &Apache::lonxml::debug('Construct Store return message:'.$result);
953: } else {
1.524 raeburn 954: my ($laststore,$checkedparts,@parts,%postcorrect);
955: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
956: (!$Apache::lonhomework::scantronmode) && (!defined($env{'form.grade_symb'})) &&
957: (!defined($env{'form.grade_courseid'}))) {
958: if ($Apache::lonhomework::history{'version'}) {
959: $laststore = $Apache::lonhomework::history{'version'}.'='.
960: $Apache::lonhomework::history{'timestamp'};
961: } else {
962: $laststore = '0=0';
963: }
964: my %record = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
965: if ($record{'version'}) {
966: my ($newversion,$oldversion,$oldtimestamp);
967: if ($Apache::lonhomework::history{'version'}) {
968: $oldversion = $Apache::lonhomework::history{'version'};
969: $oldtimestamp = $Apache::lonhomework::history{'timestamp'};
970: } else {
971: $oldversion = 0;
972: $oldtimestamp = 0;
973: }
974: if ($record{'version'} > $oldversion) {
975: if ($record{'timestamp'} >= $oldtimestamp) {
976: $laststore = $record{'version'}.'='.$record{'timestamp'};
977: $newversion = $record{'version'} + 1;
978: $checkedparts = 1;
979: foreach my $key (keys(%Apache::lonhomework::results)) {
980: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
981: my $part = $1;
982: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
983: push(@parts,$part);
984: }
985: }
986: }
987: if (@parts) {
988: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
989: \%record,\@parts,$newversion,
990: $oldversion);
991: if (@parts_to_hide) {
992: foreach my $part (@parts_to_hide) {
993: $postcorrect{$part} = 1;
994: &Apache::inputtags::hidealldata($part);
995: }
996: }
997: }
998: }
999: }
1000: }
1001: }
1.159 albertel 1002: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
1.524 raeburn 1003: $symb,$courseid,$domain,$name,$laststore);
1004: if ($result =~ /^delay\:(\d+)$/) {
1005: my $numtrans = $1;
1006: my ($oldversion) = split(/=/,$laststore);
1007: if ($numtrans) {
1008: my $newversion = $oldversion + 1 + $numtrans;
1009: my @possparts;
1010: if ($checkedparts) {
1011: foreach my $part (@parts) {
1012: unless ($postcorrect{$part}) {
1013: push(@possparts,$part);
1014: }
1015: }
1016: } else {
1017: foreach my $key (keys(%Apache::lonhomework::results)) {
1018: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1019: my $part = $1;
1020: unless ($postcorrect{$part}) {
1021: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1022: push(@possparts,$part);
1023: }
1024: }
1025: }
1026: }
1027: }
1028: if (@possparts) {
1029: my %newrecord = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1030: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1031: \%newrecord,\@possparts,$newversion,
1032: $oldversion);
1033: if (@parts_to_hide) {
1034: my $partslist = join(',',@parts_to_hide);
1035: &Apache::grades::makehidden($newversion,$partslist,\%newrecord,$symb,$domain,$name,1);
1036: }
1037: }
1038: }
1039: }
1.159 albertel 1040: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 1041: &store_aggregates($symb,$courseid);
1.159 albertel 1042: }
1.323 albertel 1043: } else {
1044: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 1045: }
1.159 albertel 1046: return $result;
1.65 albertel 1047: }
1048:
1.435 jms 1049: =pod
1050:
1.524 raeburn 1051: =item check_correctness_changes()
1052:
1053: For all parts for which current results contain a solved status
1054: of "incorrect_attempted", check if there was a transaction in which
1055: solved was set to "correct_by_student" in the time since the last
1056: transaction (retrieved when &initialize_storage() was called i.e.,
1057: when &start_problem() was called), unless:
1058: (a) questiontype parameter is set to survey or anonymous survey (+/- credit)
1059: (b) problemstatus is set to no or no_feedback_ever
1060: If such a transaction exists, and did not occur after "reset status"
1061: by a user with grading privileges, then the current transaction is an
1062: example of an out-of-order transaction (i.e., incorrect occurring after
1063: correct). Accordingly, the current transaction should be hidden.
1064:
1065: =cut
1066:
1067:
1068: sub check_correctness_changes {
1069: my ($symb,$courseid,$domain,$name,$record,$parts,$newversion,$oldversion) = @_;
1070: my @parts_to_hide;
1071: unless ((ref($record) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
1072: return @parts_to_hide;
1073: }
1074: if (@{$parts}) {
1075: my $usec;
1076: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1077: ($env{'request.course.id'} eq $courseid)) {
1078: $usec = $env{'request.course.sec'};
1079: } else {
1080: $usec = &Apache::lonnet::getsection($domain,$name,$courseid);
1081: }
1082: foreach my $id (@{$parts}) {
1083: next if (($Apache::lonhomework::results{'resource.'.$id.'.type'} =~ /survey/) ||
1084: (&Apache::lonnet::EXT("resource.$id.problemstatus",$symb,
1085: $domain,$name,$usec,undef,$courseid) =~ /^no/));
1086: my $reset;
1087: for (my $i=$newversion-1; $i>=$oldversion; $i--) {
1088: if (($record->{$i.':resource.'.$id.'.regrader'}) &&
1089: ($record->{$i.':resource.'.$id.'.tries'} eq '') &&
1090: ($record->{$i.':resource.'.$id.'.award'} eq '')) {
1091: $reset = 1;
1092: } elsif (($record->{$i.":resource.$id.solved"} eq 'correct_by_student') &&
1093: ($record->{$i.":resource.$id.awarded"} >= 1)) {
1094: unless ($reset) {
1095: push(@parts_to_hide,$id);
1096: last;
1097: }
1098: }
1099: }
1100: }
1101: }
1102: return @parts_to_hide;
1103: }
1104:
1105: =pod
1106:
1.435 jms 1107: item store_aggregates()
1108:
1109: Sends hash of values to be incremented in nohist_resourcetracker.db
1110: for the course. Increments total number of attempts, unique students
1111: and corrects for each part for an instance of a problem, as appropriate.
1112:
1113: =cut
1114:
1.285 raeburn 1115: sub store_aggregates {
1116: my ($symb,$courseid) = @_;
1.479 raeburn 1117: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 1118: my @parts;
1.288 albertel 1119: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
1120: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 1121: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 1122: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 1123: push(@parts, $1);
1.285 raeburn 1124: }
1125: }
1.286 albertel 1126: foreach my $part (@parts) {
1.470 raeburn 1127: if ($env{'request.role'} =~/^st/) {
1128: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
1129: eq 'APPROX_ANS' ||
1130: $Apache::lonhomework::results{'resource.'.$part.'.award'}
1131: eq 'EXACT_ANS') {
1132: $aggregate{$symb."\0".$part."\0correct"} = 1;
1133: }
1134: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1135: $aggregate{$symb."\0".$part."\0users"} = 1;
1136: } else {
1137: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1138: if ($last_reset) {
1139: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1140: $aggregate{$symb."\0".$part."\0users"} = 1;
1141: }
1142: }
1143: }
1144: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 1145: }
1.470 raeburn 1146: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 1147: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
1148: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
1149: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
1150: $randtrycounter{$symb."\0".$part} = 1;
1151: } else {
1152: $anoncounter{$symb."\0".$part} = 1;
1153: }
1.470 raeburn 1154: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
1155: if ($needsrelease) {
1156: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
1157: if ($curr_required eq '') {
1.471 raeburn 1158: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1159: } else {
1160: my ($currmajor,$currminor) = split(/\./,$curr_required);
1161: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
1162: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 1163: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1164: }
1.292 raeburn 1165: }
1166: }
1.285 raeburn 1167: }
1168: }
1.526 ! raeburn 1169: if (keys(%aggregate) > 0) {
1.289 albertel 1170: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 1171: $cdomain,$cname);
1172: }
1.472 raeburn 1173: if (keys(%anoncounter) > 0) {
1.481 raeburn 1174: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
1175: $cdomain,$cname);
1.472 raeburn 1176: }
1.479 raeburn 1177: if (keys(%randtrycounter) > 0) {
1.481 raeburn 1178: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
1179: $cdomain,$cname);
1.479 raeburn 1180: }
1.292 raeburn 1181: }
1.289 albertel 1182:
1.65 albertel 1183: sub checkout_msg {
1.211 albertel 1184: my %lt=&Apache::lonlocal::texthash(
1185: 'resource'=>'The resource needs to be checked out',
1186: '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.',
1187: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
1.509 bisitz 1188: 'checkout'=>'Check out Bubblesheet Exam for Viewing',
1189: 'checkout?'=>'Check out Bubblesheet Exam?');
1.352 albertel 1190: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 1191: return (<<ENDCHECKOUT);
1.211 albertel 1192: <h2>$lt{'resource'}</h2>
1193: <p>$lt{'id_expln'}</p>
1.449 bisitz 1194: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 1195: <form name="checkout" method="post" action="$uri">
1.91 albertel 1196: <input type="hidden" name="doescheckout" value="yes" />
1.514 bisitz 1197: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onclick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 1198: </form>
1199: ENDCHECKOUT
1200: }
1201:
1.252 albertel 1202: sub firstaccess_msg {
1.253 albertel 1203: my ($time,$symb)=@_;
1.414 albertel 1204: my $result;
1205: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1206: if ($interval[1] eq 'map') {
1207: my ($map)=&Apache::lonnet::decode_symb($symb);
1208: my $foldertitle=&Apache::lonnet::gettitle($map);
1209:
1210: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 1211: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
1212: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1213: ,$foldertitle,$time)."</p>";
1.414 albertel 1214: } elsif ($interval[1] eq 'course') {
1215: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 1216: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 1217: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 1218: ,$course,$time)."</p>";
1.414 albertel 1219: } else {
1220: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1221: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1222: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1223: ,$title,$time)."</p>";
1.414 albertel 1224: }
1.352 albertel 1225: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1226: my $buttontext = &mt('Show Resource');
1227: my $timertext = &mt('Start Timer?');
1.414 albertel 1228: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1229: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1230: <input type="hidden" name="markaccess" value="yes" />
1.514 bisitz 1231: <input type="button" name="accessbutton" value="$buttontext" onclick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1232: </form>
1233: ENDCHECKOUT
1.414 albertel 1234: return $result;
1.252 albertel 1235: }
1236:
1.204 albertel 1237: sub init_problem_globals {
1238: my ($type)=@_;
1239: #initialize globals
1.308 foxr 1240: # For problems, we start out in part 0 (outside a <part> tag).
1241: # and part 0 is used to describe the main body of the <problem>
1242: #
1.204 albertel 1243: if ($type eq 'problem') {
1244: $Apache::inputtags::part='0';
1245: @Apache::inputtags::partlist=('0');
1.405 albertel 1246: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1247: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1248:
1.266 albertel 1249: } elsif ($type eq 'library') {
1.204 albertel 1250: $Apache::inputtags::part='';
1251: @Apache::inputtags::partlist=();
1.405 albertel 1252: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1253: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1254:
1.304 albertel 1255: } elsif ($type eq 'Task') {
1256: $Apache::inputtags::part='0';
1257: @Apache::inputtags::partlist=('0');
1.405 albertel 1258: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1259: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1260: }
1.477 www 1261: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1262: @Apache::inputtags::responselist = ();
1263: @Apache::inputtags::importlist = ();
1264: @Apache::inputtags::previous=();
1265: @Apache::inputtags::previous_version=();
1266: $Apache::structuretags::printanswer='No';
1267: @Apache::structuretags::whileconds=();
1268: @Apache::structuretags::whilebody=();
1269: @Apache::structuretags::whileline=();
1270: $Apache::lonhomework::scantronmode=0;
1271: undef($Apache::lonhomework::name);
1.358 albertel 1272: undef($Apache::lonhomework::default_type);
1273: undef($Apache::lonhomework::type);
1.204 albertel 1274: }
1275:
1276: sub reset_problem_globals {
1277: my ($type)=@_;
1278: undef(%Apache::lonhomework::history);
1279: undef(%Apache::lonhomework::results);
1280: undef($Apache::inputtags::part);
1.498 raeburn 1281: if ($type eq 'Task') {
1282: undef($Apache::inputtags::slot_name);
1283: }
1.208 albertel 1284: #don't undef this, lonhomework.pm takes care of this, we use this to
1285: #detect if we try to do 2 problems in one file
1286: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1287: undef($Apache::lonhomework::name);
1.358 albertel 1288: undef($Apache::lonhomework::default_type);
1289: undef($Apache::lonhomework::type);
1290: undef($Apache::lonhomework::scantronmode);
1291: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1292: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1293: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1294: }
1295:
1.241 albertel 1296: sub set_problem_state {
1.240 albertel 1297: my ($part)=@_;
1.284 albertel 1298: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1299: $Apache::lonhomework::history{"resource.$part.solved"}=
1300: 'correct_by_student';
1301: }
1302: }
1303:
1.241 albertel 1304: sub get_problem_status {
1305: my ($part)=@_;
1.267 albertel 1306: my $problem_status;
1.284 albertel 1307: if ($env{'request.state'} eq 'construct' &&
1308: defined($env{'form.problemstatus'})) {
1309: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1310: } else {
1311: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1312: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1313: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1314: }
1315: return $problem_status;
1316: }
1317:
1.9 albertel 1318: sub start_problem {
1.326 albertel 1319: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1320:
1.311 foxr 1321: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1322: if (!$Apache::lonxml::metamode) {
1323: &Apache::lonxml::startredirection();
1324: }
1.311 foxr 1325:
1.308 foxr 1326: # Problems don't nest and we don't allow more than one <problem> in
1327: # a .problem file.
1328: #
1.184 albertel 1329: if ( $Apache::inputtags::part ne '' ||
1330: $Apache::lonhomework::parsing_a_problem) {
1331: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1332: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1333: return '';
1334: }
1.184 albertel 1335:
1336: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1337: &init_problem_globals('problem');
1.166 albertel 1338:
1.284 albertel 1339: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1340: $Apache::lonhomework::scantronmode=1;
1341: }
1.161 albertel 1342:
1.159 albertel 1343: if ($target ne 'analyze') {
1.415 raeburn 1344: my $type = &Apache::lonnet::EXT('resource.0.type');
1345: $Apache::lonhomework::type=$type;
1.284 albertel 1346: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1347: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1348: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1349: }
1.332 albertel 1350: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1351: }
1.164 albertel 1352: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1353: my $uri=$env{'request.uri'};
1.159 albertel 1354: if ($uri=~/\.(\w+)$/) {
1355: $Apache::lonhomework::type=$1;
1356: &Apache::lonxml::debug("Using type of $1");
1357: } else {
1358: $Apache::lonhomework::type='problem';
1359: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1360: }
1.87 albertel 1361: }
1.301 albertel 1362: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1363:
1.363 albertel 1364: &initialize_storage();
1.389 albertel 1365: if ($target ne 'analyze'
1366: && $env{'request.state'} eq 'construct') {
1367: &set_problem_state('0');
1368: }
1369:
1.366 albertel 1370: if ($target eq 'web') {
1371: &Apache::lonxml::debug(" grading history ");
1372: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1373: }
1.363 albertel 1374:
1.159 albertel 1375: #added vars to the scripting enviroment
1.213 albertel 1376: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1377: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1378: &Apache::run::run($expression,$safeeval);
1.159 albertel 1379: my $status;
1380: my $accessmsg;
1.508 raeburn 1381: my $resource_due;
1.159 albertel 1382:
1.343 albertel 1383: my $name= &get_resource_name($parstack,$safeeval);
1.506 raeburn 1384: my ($result,$form_tag_start,$slot_name,$slot);
1385:
1386: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1387: $target eq 'tex') {
1388: if ($env{'form.markaccess'}) {
1389: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1.519 raeburn 1390: &Apache::lonnet::set_first_access($interval[1],$interval[0]);
1.506 raeburn 1391: }
1392:
1393: ($status,$accessmsg,$slot_name,$slot) =
1394: &Apache::lonhomework::check_slot_access('0','problem');
1395: push (@Apache::inputtags::status,$status);
1396: }
1397:
1.354 albertel 1398: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1399: || $target eq 'edit') {
1.350 albertel 1400: ($result,$form_tag_start) =
1401: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1402: $name);
1403: }
1404:
1.284 albertel 1405: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1406:
1.479 raeburn 1407: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1408: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1409: $target eq 'tex') {
1.479 raeburn 1410:
1.159 albertel 1411: #handle rand seed in construction space
1.479 raeburn 1412: my $rndseed=&setup_rndseed($safeeval,$target);
1.367 albertel 1413: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 1414:
1.333 albertel 1415: if ($env{'request.state'} ne "construct" &&
1416: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1417: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1418: $rndseed.'" />'.
1419: '<input type="submit" name="resetdata"
1420: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1421: if (exists($env{'form.username'})) {
1422: $form_tag_start.=
1.164 albertel 1423: '<input type="hidden" name="username"
1.284 albertel 1424: value="'.$env{'form.username'}.'" />';
1.334 albertel 1425: }
1.462 raeburn 1426: if ($env{'request.role.adv'}) {
1427: $form_tag_start.= ' <label class="LC_nobreak">'
1428: .'<input type="checkbox" name="showallfoils"';
1429: if (defined($env{'form.showallfoils'})) {
1430: $form_tag_start.=' checked="checked"';
1431: }
1432: $form_tag_start.= ' /> '
1433: .&mt('Show All Foils')
1434: .'</label>';
1435: }
1.417 www 1436: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1437: $form_tag_start.=&practice_problem_header();
1.417 www 1438: }
1.462 raeburn 1439: $form_tag_start.='<hr />';
1.479 raeburn 1440: } elsif (($env{'request.state'} ne "construct") &&
1441: ($Apache::lonhomework::type eq 'randomizetry') &&
1442: ($status eq 'CAN_ANSWER')) {
1443: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1444: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1445: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1446: }
1.324 albertel 1447:
1.159 albertel 1448: my $expression='$external::datestatus="'.$status.'";';
1449: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1450: &Apache::run::run($expression,$safeeval);
1451: &Apache::lonxml::debug("Got $status");
1.324 albertel 1452:
1.159 albertel 1453: if (( $status eq 'CLOSED' ) ||
1454: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1455: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1456: ( $status eq 'BANNED') ||
1.216 albertel 1457: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1458: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1459: ( $status eq 'NOTRESERVABLE') ||
1460: ( $status eq 'RESERVABLE') ||
1461: ( $status eq 'RESERVABLE_LATER') ||
1.216 albertel 1462: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1463: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1464: $style);
1.159 albertel 1465: if ( $target eq "web" ) {
1.343 albertel 1466: my $msg;
1.159 albertel 1467: if ($status eq 'UNAVAILABLE') {
1.504 golterma 1468: $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1.441 raeburn 1469: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.504 golterma 1470: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1.499 raeburn 1471: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1472: ($status eq 'NOTRESERVABLE')) {
1.504 golterma 1473: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1.253 albertel 1474: } elsif ($status ne 'NOT_YET_VIEWED') {
1.504 golterma 1475: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1.499 raeburn 1476: }
1.216 albertel 1477: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1478: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1479: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1480: $msg.=&checkout_msg();
1.252 albertel 1481: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1482: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1483: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1484: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.499 raeburn 1485: } elsif ($status eq 'RESERVABLE') {
1486: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1487: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1488: '<br />'.
1489: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1490: } elsif ($status eq 'RESERVABLE_LATER') {
1491: $msg.=&mt('Window to make a reservation will open [_1].',
1492: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1493: } elsif ($status eq 'NOTRESERVABLE') {
1494: $msg.=&mt('Not available to make a reservation.');
1.159 albertel 1495: }
1496: $result.=$msg.'<br />';
1497: } elsif ($target eq 'tex') {
1.332 albertel 1498: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1499: : '\begin{minipage}{\textwidth}';
1.443 foxr 1500: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1501: $startminipage.'\vskip 0 mm';
1.159 albertel 1502: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1503: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1504: } else {
1.211 albertel 1505: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1506: }
1507: }
1.324 albertel 1508: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1509: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1510: $style);
1.324 albertel 1511: if ($target eq 'web') {
1.375 albertel 1512: $result .=
1513: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1514: } elsif ($target eq 'grade') {
1515: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1516: 'problem');
1517: }
1.159 albertel 1518: } elsif ($target eq 'web') {
1.508 raeburn 1519: if ($status eq 'CAN_ANSWER') {
1520: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1521: if ($slot_name ne '') {
1522: my $checked_in =
1523: $Apache::lonhomework::history{'resource.0.checkedin'};
1524: if ($checked_in eq '') {
1525: # unproctored slot access, self checkin
1526: &Apache::bridgetask::check_in('problem',undef,undef,
1527: $slot_name);
1528: $checked_in =
1529: $Apache::lonhomework::results{"resource.0.checkedin"};
1530: }
1531: if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1532: if ($slot->{'starttime'} < time()) {
1533: if (!$resource_due) {
1534: $resource_due = $slot->{'endtime'};
1535: } elsif ($slot->{'endtime'} < $resource_due) {
1536: $resource_due = $slot->{'endtime'};
1537: }
1538: }
1539: }
1540: }
1541: if ($resource_due) {
1542: my $time_left = $resource_due - time();
1543: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1544: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1545: }
1546: }
1547: }
1.368 albertel 1548: $result.="\n $form_tag_start \t".
1.227 albertel 1549: '<input type="hidden" name="submitted" value="yes" />';
1550: # create a page header and exit
1.284 albertel 1551: if ($env{'request.state'} eq "construct") {
1552: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1553: if ($Apache::lonhomework::type eq 'practice') {
1554: $result.= '<input type="submit" name="resetdata" '.
1555: 'value="'.&mt('New Problem Variation').'" />'.
1556: &practice_problem_header().'<hr />';
1557: }
1.227 albertel 1558: }
1559: # if we are viewing someone else preserve that info
1.284 albertel 1560: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1561: foreach my $field ('symb','courseid','domain','username') {
1562: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1563: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1564: }
1.479 raeburn 1565: foreach my $field ('trial','questiontype') {
1566: if ($env{"form.grade_$field"} ne '') {
1567: $result .= '<input type="hidden" name="grade_'.$field.
1568: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1569: }
1570: }
1.159 albertel 1571: }
1.490 raeburn 1572: if ($env{'form.grade_imsexport'}) {
1573: $result = '';
1574: }
1.159 albertel 1575: } elsif ($target eq 'tex') {
1.319 foxr 1576: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 1577: $result .= &select_metadata_hyphenation();
1578:
1.319 foxr 1579:
1.99 sakharuk 1580: }
1.159 albertel 1581: } elsif ($target eq 'edit') {
1.343 albertel 1582: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1583: $Apache::lonxml::warnings_error_header=
1584: &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 1585: my $temp=&Apache::edit::insertlist($target,$token);
1586: $result.=$temp;
1587: } elsif ($target eq 'modified') {
1588: $result=$token->[4];
1589: } else {
1590: # page_start returned a starting result, delete it if we don't need it
1591: $result = '';
1.99 sakharuk 1592: }
1.159 albertel 1593: return $result;
1.9 albertel 1594: }
1595:
1596: sub end_problem {
1.159 albertel 1597: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1598: my $result;
1.310 foxr 1599:
1.321 albertel 1600: if (!$Apache::lonxml::metamode) {
1601: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1602: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1603: }
1.319 foxr 1604:
1605: if ($target eq 'tex') {
1.321 albertel 1606: # Figure out the front matter and replace the
1607: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1608: # this in end_problem because whether or not we display due
1609: # dates depends on whether due dates have already been
1610: # displayed in the problem parts.
1611:
1.319 foxr 1612: my $frontmatter = '';
1613: my $startminipage = '';
1614: if (not $env{'form.problem_split'}=~/yes/) {
1615: $startminipage = '\begin{minipage}{\textwidth}';
1616: }
1617: my $id = $Apache::inputtags::part;
1618: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1619: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.526 ! raeburn 1620: my @packages = split(/,/,$packages);
1.319 foxr 1621: my $allow_print_points = 0;
1622: foreach my $partial_key (@packages) {
1623: if ($partial_key=~m/^part_0$/) {
1624: $allow_print_points=1;
1625: }
1626: }
1627: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1628: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1629: if (lc($env{'course.'.$env{'request.course.id'}.
1630: '.disableexampointprint'}) eq 'yes') {
1631: $allow_print_points=0;
1632: }
1633: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1634: 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 1635: &clear_required_languages();
1.319 foxr 1636: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1637: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1638:
1639: # Figure out what the due date is and if we need to print
1640: # it in the problem header. We have been logging the
1641: # last due date written to file.
1642:
1643: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1644: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1645: my $duedate_text = &mt('Due date: [_1]'
1646: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1647: my $temp_file;
1648: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1649:
1650: # Figure out what the last printed due date is or set it
1651: # to the epoch if no duedates have been printed.
1652:
1653: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1654: if (-e $filename) {
1655: $temp_file = Apache::File->new($filename);
1656: my @due_file = <$temp_file>;
1657: $due_file_content = $due_file[$#due_file];
1658: chomp $due_file_content;
1659: }
1660:
1661: # We display the due date iff it is not the same as the last
1662: # duedate in problem header ($due_file_content), and
1663: # none of our parts displayed a duedate.
1664: #
1665: my $parts_with_displayduedate;
1666: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1667: $parts_with_displayduedate =
1668: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1669: } else {
1670: $parts_with_displayduedate = 0;
1671: }
1672: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1673: $temp_file = Apache::File->new('>'.$filename);
1674: print $temp_file "$duetime\n";
1675: if (not $env{'request.symb'} =~ m/\.page_/) {
1676: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1677: $frontmatter .= $begin_doc.
1.448 bisitz 1678: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1679: } else {
1680: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1681: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1682: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1683: }
1.319 foxr 1684: }
1685: } else {
1.448 bisitz 1686: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1687: }
1688: } else {
1689: if (not $env{'request.symb'} =~ m/\.page_/) {
1690: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1691: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1692: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1693: }
1.319 foxr 1694: } else {
1.381 albertel 1695: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1696: }
1697: }
1698: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1699: }
1700:
1.159 albertel 1701: my $status=$Apache::inputtags::status['-1'];
1702: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1703: $target eq 'tex') {
1.249 albertel 1704: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1705: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1706: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1707: &Apache::inputtags::grade;
1.324 albertel 1708: } elsif ($status eq 'NEEDS_CHECKIN') {
1709: # no need to grade, and don't want to hide data
1.249 albertel 1710: } else {
1711: # move any submission data to .hidden
1712: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1713: }
1.159 albertel 1714: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1715: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1716: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1717: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1718: # if part is zero, no <part>s existed, so we need show the current
1719: # grading status
1720: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1721: $result.= $gradestatus;
1722: }
1723: if (
1.284 albertel 1724: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1725: ($target eq 'answer') || ($target eq 'tex')
1726: ) {
1.490 raeburn 1727: if (($target ne 'tex') &&
1728: ($env{'form.answer_output_mode'} ne 'tex') &&
1729: (!$env{'form.grade_imsexport'})) {
1.254 www 1730: $result.="</form>";
1.159 albertel 1731: }
1732: if ($target eq 'web') {
1.507 raeburn 1733: #
1734: # Closing </body></html> not added by end_page().
1735: # Added separately at end of this routine, after added
1736: # <script></script> so document will be valid xhtml.
1737: #
1738: $result.= &Apache::loncommon::end_page({'discussion' => 1,
1739: 'notbody' => 1});
1.159 albertel 1740: } elsif ($target eq 'tex') {
1.178 sakharuk 1741: my $endminipage = '';
1.284 albertel 1742: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1743: $endminipage = '\end{minipage}';
1744: }
1.284 albertel 1745: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1746: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1747: } else {
1.262 sakharuk 1748: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1749: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1750: $result .= $endminipage.'\end{document} ';
1751: } else {
1.382 albertel 1752: $result .= $endminipage;
1.262 sakharuk 1753: }
1.159 albertel 1754: }
1755: }
1756: }
1.476 www 1757: if ($target eq 'web') {
1758: $result.=&Apache::functionplotresponse::init_script();
1759: }
1.159 albertel 1760: if ($target eq 'grade') {
1761: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1762: &finalize_storage();
1763: }
1.284 albertel 1764: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1765: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1766: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1767: # normally we get it from above, but in CSTR
1.172 albertel 1768: # we always show answer mode too.
1.159 albertel 1769: }
1770: } elsif ($target eq 'meta') {
1771: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1772: @Apache::inputtags::response=();
1.159 albertel 1773: $result=&Apache::response::mandatory_part_meta;
1774: }
1.215 albertel 1775: $result.=&Apache::response::meta_part_order();
1.258 albertel 1776: $result.=&Apache::response::meta_response_order();
1.159 albertel 1777: } elsif ($target eq 'edit') {
1778: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1779: $result .= &problem_edit_footer();
1.320 albertel 1780: } elsif ($target eq 'modified') {
1781: $result .= $token->[2];
1.159 albertel 1782: }
1.155 albertel 1783:
1.284 albertel 1784: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1785: &Apache::inputtags::check_for_duplicate_ids();
1786: }
1.204 albertel 1787:
1788: &reset_problem_globals('problem');
1.159 albertel 1789:
1.502 foxr 1790: #
1791: # This shouild be just above the return so that the
1792: # time put in the javascript is as late as possible in the
1793: # computation:
1794: #
1795: if ($target eq 'web') {
1796: $result .= &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 1797: #
1798: # Closing tags delayed so any <script></script> tags
1799: # not in head can appear inside body, for valid xhtml.
1800: #
1801: $result .= "</body>\n</html>";
1.502 foxr 1802: }
1.159 albertel 1803: return $result;
1.48 albertel 1804: }
1805:
1.108 albertel 1806:
1.48 albertel 1807: sub start_library {
1.159 albertel 1808: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1809: my ($result,$form_tag_start);
1.371 albertel 1810: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1811: &init_problem_globals('library');
1812: $Apache::lonhomework::type='problem';
1813: }
1.159 albertel 1814: if ($target eq 'edit') {
1.343 albertel 1815: ($result,$form_tag_start)=
1816: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1817: 'Edit');
1818: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1819: my $temp=&Apache::edit::insertlist($target,$token);
1820: $result.=$temp;
1821: } elsif ($target eq 'modified') {
1822: $result=$token->[4];
1.340 albertel 1823: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1824: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1825: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1826: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1827: ($result,$form_tag_start)=
1828: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1829: $name);
1.479 raeburn 1830: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 1831: $result.=" \n $form_tag_start".
1.159 albertel 1832: '<input type="hidden" name="submitted" value="yes" />';
1833: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1834: if ($Apache::lonhomework::type eq 'practice') {
1835: $result.= '<input type="submit" name="resetdata" '.
1836: 'value="'.&mt('New Problem Variation').'" />'.
1837: &practice_problem_header().'<hr />';
1838: }
1.159 albertel 1839: }
1840: return $result;
1.48 albertel 1841: }
1842:
1843: sub end_library {
1.159 albertel 1844: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1845: my $result='';
1846: if ($target eq 'edit') {
1847: $result=&problem_edit_footer();
1.371 albertel 1848: } elsif ($target eq 'web'
1849: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1850: && $env{'request.state'} eq "construct") {
1.349 albertel 1851: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1852: }
1.371 albertel 1853: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1854: &reset_problem_globals('library');
1855: }
1.159 albertel 1856: return $result;
1.197 www 1857: }
1858:
1859: sub start_definetag {
1.326 albertel 1860: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1861:
1862: my $result;
1863:
1864: my $name = $token->[2]->{'name'};
1.326 albertel 1865: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1866: if ($target eq 'web') {
1867: if ($name=~/^\//) {
1868: $result=
1869: '<br /><table class="LC_sty_end"><tr><th>'.
1870: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1871: } else {
1872: $result=
1873: '<br /><table class="LC_sty_begin"><tr><th>'.
1874: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1875: }
1876: $skip = &HTML::Entities::encode($skip, '<>&"');
1877: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1878: }
1879: return $result;
1880: }
1881:
1882: sub end_definetag {
1883: return '';
1.1 albertel 1884: }
1885:
1886: sub start_block {
1.201 albertel 1887: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1888:
1889: my $result;
1.1 albertel 1890:
1.339 albertel 1891: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1892: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1893: my $code = $token->[2]->{'condition'};
1.385 albertel 1894: if (defined($code) && $code ne '') {
1.137 albertel 1895: if (!$Apache::lonxml::default_homework_loaded) {
1896: &Apache::lonxml::default_homework_load($safeeval);
1897: }
1.131 albertel 1898: $result = &Apache::run::run($code,$safeeval);
1899: &Apache::lonxml::debug("block :$code: returned :$result:");
1900: } else {
1901: $result='1';
1902: }
1903: if ( ! $result ) {
1.201 albertel 1904: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1905: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1906: }
1907: $result='';
1908: } elsif ($target eq 'edit') {
1909: $result .=&Apache::edit::tag_start($target,$token);
1910: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1911: $token,40);
1912: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1913: } elsif ($target eq 'modified') {
1914: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1915: $safeeval,'condition');
1916: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1917: }
1.131 albertel 1918: return $result;
1.1 albertel 1919: }
1920:
1921: sub end_block {
1.167 www 1922: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1923: my $result;
1924: if ($target eq "edit") {
1925: $result.= &Apache::edit::tag_end($target,$token,'');
1926: }
1927: return $result;
1928: }
1.500 foxr 1929: #
1930: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
1931: # ...
1932: # </languageblock>
1933: #
1934: # This declares the intent to provide content that can be rendered in the
1935: # set of languages in the include specificatino but not in the exclude
1936: # specification. If a currently preferred language is in the include list
1937: # the content in the <languageblock>...</languageblock> is rendered
1938: # If the currently preferred language is in the exclude list,
1939: # the content in the <languageblock>..></languageblock is not rendered.
1940: #
1941: # Pathalogical case handling:
1942: # - Include specified, without the preferred language but exclude specified
1943: # also without the preferred langauge results in rendering the block.
1944: # - Exclude specified without include and excluden not containing a
1945: # preferred language renders the block.
1946: # - Include and exclude both specifying the preferred language does not
1947: # render the block.
1948: # - If neither include/exclude is specified, the block gets rendered.
1949: #
1950: # This tag has no effect when target is in {edit, modified}
1951: #
1.167 www 1952: sub start_languageblock {
1.201 albertel 1953: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1954:
1.500 foxr 1955: my $result = '';
1.167 www 1956:
1.339 albertel 1957: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1958: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1959: my $include = $token->[2]->{'include'};
1960: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1961: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 1962:
1963: # This should not even happen, since we should at least have the server language
1964:
1965: if (!$preferred_languages[0]) {
1966: $preferred_languages[0]='en';
1967: }
1968:
1969: # Now loop over all languages in order of preference
1970:
1971: my $render;
1.398 www 1972: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 1973:
1974: # If neither include/nor exlude is present the block is going
1975: # to get rendered.
1976:
1.399 www 1977: my $found=0;
1.500 foxr 1978: $render=1;
1979:
1980: # If include is specified, don't render the block
1981: # unless the preferred language is included in the set.
1982:
1.398 www 1983: if ($include) {
1.500 foxr 1984: $render=0;
1.398 www 1985: foreach my $included_language (split(/\,/,$include)) {
1986: if ($included_language eq $preferred_language) {
1.500 foxr 1987: $render=1;
1.399 www 1988: $found=1;
1.500 foxr 1989: last; # Only need to find the first.
1.398 www 1990: }
1991: }
1992: }
1.500 foxr 1993: # Do we have an exclude argument?
1994: # If so, and one of the languages matches a preferred language
1995: # inhibit rendering the block. Note that in the pathalogical case the
1996: # author has specified a preferred language in both the include and exclude
1997: # attribte exclude is preferred.
1998:
1.398 www 1999: if ($exclude) {
1.500 foxr 2000: $render=1;
1.398 www 2001: foreach my $excluded_language (split(/\,/,$exclude)) {
2002: if ($excluded_language eq $preferred_language) {
1.500 foxr 2003: $render=0;
1.399 www 2004: $found=1;
1.500 foxr 2005: last; # Only need to find the first.
1.398 www 2006: }
2007: }
2008: }
1.500 foxr 2009: if ($found) {
2010: last; # Done on any match of include or exclude.
2011: }
1.398 www 2012: }
1.500 foxr 2013: # If $render not true skip the entire block until </languageblock>
2014: #
2015:
2016: if ( ! $render ) {
1.201 albertel 2017: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
2018: $style);
2019: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2020: }
1.500 foxr 2021: # If $render is true, we've not skipped the contents of the <languageglock>
2022: # and the normal loncapa processing flow will render it as a matter of course.
2023:
1.167 www 2024: } elsif ($target eq 'edit') {
2025: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2026: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 2027: $token,40);
1.211 albertel 2028: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 2029: $token,40);
2030: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2031: } elsif ($target eq 'modified') {
2032: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 2033: $safeeval,'include',
2034: 'exclude');
1.167 www 2035: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2036: }
2037: return $result;
2038: }
2039:
2040: sub end_languageblock {
1.170 www 2041: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2042: my $result;
1.201 albertel 2043: if ($target eq "edit") {
1.170 www 2044: $result.= &Apache::edit::tag_end($target,$token,'');
2045: }
2046: return $result;
2047: }
1.500 foxr 2048: # languagblock specific tags:
2049: {
2050: # For chunks of a resource that has translations, this hash contains
2051: # the translations available indexed by language name.
2052: #
2053:
2054: my %available_texts;
1.170 www 2055:
1.500 foxr 2056: # <translated> starts a block of a resource that has multiple translations.
2057: # See the <lang> tag as well.
2058: # When </translated> is encountered if there is a translation for the
2059: # currently preferred language, that is rendered inthe web/tex/webgrade
2060: # targets. Otherwise, the default text is rendered.
2061: #
2062: # Note that <lang> is only registered for the duration of the
2063: # <translated>...</translated> block
2064: #
2065: # Pathalogical case handling:
2066: # - If there is no <lang> that specifies a 'default' and there is no
2067: # translation that matches a preferred language, nothing is rendered.
2068: # - Nested <translated>...</translated> might be linguistically supported by
2069: # XML due to the stack nature of tag registration(?) however the rendered
2070: # output will be incorrect because there is only one %available_texts
2071: # has and end_translated clears it.
2072: # - Material outside of a <lang>...</lang> block within the
2073: # <translated>...<translated> block won't render either e.g.:
2074: # <translated>
2075: # The following will be in your preferred langauge:
2076: # <lang which='en'>
2077: # This section in english
2078: # </lang>
2079: # <lang which='sgeiso'>
2080: # Hier es ist auf Deutsch.
2081: # </lang>
2082: # <lang which='sfriso'>
2083: # En Francais
2084: # </lang>
2085: # </translated>
2086: #
2087: # The introductory text prior to the first <lang> tag is not rendered.
2088: #
1.397 albertel 2089: sub start_translated {
2090: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2091: &Apache::lonxml::register('Apache::structuretags',('lang'));
2092: undef(%available_texts);
2093: }
2094:
2095: sub end_translated {
2096: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2097: my $result;
2098: #show the translation on viewable targets
2099: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
2100: # or non-viewable targets, if it's embedded in something that
2101: # wants the output
2102: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
2103: && &Apache::lonxml::in_redirection() ) ) {
2104: my @possibilities = keys(%available_texts);
2105: my $which =
2106: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 2107: if ($target eq 'tex') {
2108: $result = &select_hyphenation($which);
2109: }
2110: $result .= $available_texts{$which};
2111: if ($target eq 'tex') {
2112: $result .= &select_metadata_hyphenation(); # Restore original language.
2113: }
1.397 albertel 2114: }
2115: undef(%available_texts);
2116: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
2117: return $result;
2118: }
2119:
1.500 foxr 2120: # <lang [which='language-name'] [other='lang1,lang2...']>
2121: # Specifies that the block contained within it is a translation
2122: # for a specific language specified by the 'which' attribute. The
2123: # 'other' attribute can be used by itself or in conjunction with
2124: # which to specify this tag _may_ be used as a translation for some
2125: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
2126: # specifying that the block provides a translation for US (primary)
2127: # Canadian, Australian and UK Englush.
2128: #
2129: # Comment: this seems a bit silly why not just support a list of languages
2130: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
2131: #
2132: # Effect:
2133: # The material within the <lang>..</lang> block is stored in the
2134: # specified set of $available_texts hash entries, the appropriate one
2135: # is selected at </translated> time.
2136: #
2137: # Pathalogical case handling:
2138: # If a language occurs multiple times within a <translated> block,
2139: # only the last one is rendered e.g.:
2140: #
2141: # <translated>
2142: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
2143: # Red green color blindness is quite common affecting about 7.8% of
2144: # the male population, but onloy about .65% of the female population.
2145: # </lang>
2146: # Red green colour blindness is quite common affecting about 7.8% of
2147: # the male population, but onloy about .65% of the female population.
2148: # <lang which='seniso', other='senisoCA,senisoAU'>
2149: # </translated>
2150: #
2151: # renders the correct spelling of color (colour) for people who have specified
2152: # a preferred language that is one of the British Commonwealth languages
2153: # even though those are also listed as valid selections for the US english
2154: # <lang> block.
2155: #
1.397 albertel 2156: sub start_lang {
2157: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2158: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2159: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2160: &Apache::lonxml::startredirection();
2161: }
2162: return '';
2163: }
2164:
2165: sub end_lang {
2166: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2167: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2168: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2169: my $result = &Apache::lonxml::endredirection();
2170: my $which = &Apache::lonxml::get_param('which',$parstack,
2171: $safeeval);
1.431 raeburn 2172: if ($which=~/\w/) {
2173: $available_texts{$which} = $result;
2174: }
2175: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
2176: $safeeval);
2177: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
2178: if ($language=~/\w/) {
2179: $available_texts{$language} = $result;
2180: }
1.427 bisitz 2181: }
2182:
1.397 albertel 2183: }
2184: return '';
2185: }
1.500 foxr 2186: } # end langauge block specific tags.
2187:
1.397 albertel 2188:
1.170 www 2189: sub start_instructorcomment {
1.201 albertel 2190: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 2191:
2192: my $result;
2193:
1.339 albertel 2194: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2195: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 2196: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 2197: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 2198: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
2199: $parser,$style);
1.170 www 2200: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2201: }
2202: $result='';
2203: } elsif ($target eq 'edit') {
2204: $result .=&Apache::edit::tag_start($target,$token);
2205: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2206: }
2207: return $result;
2208: }
2209:
2210: sub end_instructorcomment {
1.159 albertel 2211: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2212: my $result;
2213: if ($target eq "edit") {
2214: $result.= &Apache::edit::tag_end($target,$token,'');
2215: }
2216: return $result;
1.4 tsai 2217: }
2218:
2219: sub start_while {
1.326 albertel 2220: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2221:
1.160 albertel 2222: my $result;
1.339 albertel 2223: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2224: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2225: my $code = $token->[2]->{'condition'};
1.4 tsai 2226:
1.160 albertel 2227: push( @Apache::structuretags::whileconds, $code);
2228: if (!$Apache::lonxml::default_homework_loaded) {
2229: &Apache::lonxml::default_homework_load($safeeval);
2230: }
2231: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2232: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2233: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2234: push( @Apache::structuretags::whileline, $token->[5]);
2235: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2236: if ( $result ) {
2237: &Apache::lonxml::newparser($parser,\$bodytext);
2238: }
2239: } elsif ($target eq 'edit') {
2240: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2241: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2242: $token,40);
2243: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2244: } elsif ($target eq 'modified') {
2245: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2246: $safeeval,'condition');
2247: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2248: }
1.160 albertel 2249: return $result;
1.4 tsai 2250: }
2251:
2252: sub end_while {
1.159 albertel 2253: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2254: my $result;
2255:
1.339 albertel 2256: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2257: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2258: my $code = pop(@Apache::structuretags::whileconds);
2259: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2260: my $line = pop(@Apache::structuretags::whileline);
2261: my $return = &Apache::run::run($code,$safeeval);
2262: my $starttime=time;
2263: my $error=0;
2264: while ($return) {
2265: if (time-$starttime >
2266: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2267: $return = 0; $error=1; next;
1.161 albertel 2268: }
2269: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2270: if ($target eq 'grade' || $target eq 'answer' ||
2271: $target eq 'analyze') {
2272: # grade/answer/analyze should produce no output but if we
2273: # are redirecting, the redirecter should know what to do
2274: # with the output
2275: if (!$Apache::lonxml::redirection) { undef($result); }
2276: }
1.161 albertel 2277: $return = &Apache::run::run($code,$safeeval);
2278: }
1.516 bisitz 2279: if ($error) {
2280: &Apache::lonxml::error(
2281: '<pre>'
2282: .&mt('Code ran too long. It ran for more than [_1] seconds.',
2283: $Apache::lonnet::perlvar{'lonScriptTimeout'})
2284: .&mt('This occurred while running <while> on line [_1].',
2285: $line)
2286: .'</pre>');
2287: }
1.160 albertel 2288: } elsif ($target eq "edit") {
2289: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2290: }
1.160 albertel 2291: return $result;
1.1 albertel 2292: }
1.6 tsai 2293:
1.160 albertel 2294: # <randomlist show="1">
1.6 tsai 2295: # <tag1>..</tag1>
2296: # <tag2>..</tag2>
2297: # <tag3>..</tag3>
1.160 albertel 2298: # ...
1.6 tsai 2299: # </randomlist>
2300: sub start_randomlist {
1.326 albertel 2301: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2302: my $result;
1.339 albertel 2303: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2304: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2305: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2306: my $b_parser= HTML::LCParser->new(\$body);
2307: $b_parser->xml_mode(1);
2308: $b_parser->marked_sections(1);
1.159 albertel 2309: my $b_tok;
2310: my @randomlist;
2311: my $list_item;
2312: while($b_tok = $b_parser->get_token() ) {
2313: if($b_tok->[0] eq 'S') { # start tag
2314: # get content of the tag until matching end tag
2315: # get all text upto the matching tag
2316: # and push the content into @randomlist
2317: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2318: $b_parser);
2319: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2320: push(@randomlist,$list_item);
2321: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2322: # $list_item</b>";
2323: }
2324: if($b_tok->[0] eq 'T') { # text
2325: # what to do with text in between tags?
2326: # print "<b>TEXT $b_tok->[1]</b><br />";
2327: }
2328: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2329: # print "<b>END-TAG $b_tok->[1]</b><br />";
2330: # }
2331: }
1.303 albertel 2332: if (@randomlist) {
2333: my @idx_arr = (0 .. $#randomlist);
2334: &Apache::structuretags::shuffle(\@idx_arr);
2335: my $bodytext = '';
2336: my $show=$#randomlist;
2337: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2338: $showarg--;
2339: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2340: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2341: my @currlist;
2342: my $part = $Apache::inputtags::part;
2343: if ($part ne '') {
2344: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2345: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2346: if (!(grep(/^\Q$part\E$/,@currlist))) {
2347: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2348: }
2349: } else {
2350: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2351: }
2352: }
2353: }
1.526 ! raeburn 2354: for my $i (0 .. $show) {
! 2355: $bodytext .= "$randomlist[ $idx_arr[$i] ]";
1.303 albertel 2356: }
2357: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2358: }
2359: } elsif ($target eq 'edit' ) {
2360: $result .=&Apache::edit::tag_start($target,$token);
2361: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2362: $token,5);
2363: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2364: } elsif ($target eq 'modified' ) {
2365: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2366: $safeeval,'show');
2367: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2368: }
2369: return $result;
1.7 tsai 2370: }
2371:
2372: sub shuffle {
2373: my $a=shift;
2374: my $i;
1.303 albertel 2375: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 2376: &Apache::response::pushrandomnumber();
1.159 albertel 2377: for($i=@$a;--$i;) {
2378: my $j=int(&Math::Random::random_uniform() * ($i+1));
2379: next if $i == $j;
2380: @$a[$i,$j] = @$a[$j,$i];
2381: }
1.251 albertel 2382: &Apache::response::poprandomnumber();
1.7 tsai 2383: }
1.6 tsai 2384: }
2385:
2386: sub end_randomlist {
1.159 albertel 2387: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2388: my $result;
2389: if ($target eq 'edit' ) {
2390: $result=&Apache::edit::tag_end($target,$token,
2391: 'End Randomly Parsed Block');
2392: }
2393: return $result;
1.6 tsai 2394: }
2395:
1.283 albertel 2396: sub ordered_show_check {
2397: my $last_part=$Apache::inputtags::partlist[-2];
2398: my $in_order=
2399: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2400: my $in_order_show=1;
2401: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2402: $in_order_show=&Apache::response::check_status($last_part);
2403: }
2404: return $in_order_show;
2405: }
2406:
1.469 www 2407:
2408: sub start_startpartmarker {
2409: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2410: my $result='';
2411: if ($target eq 'edit') {
2412: $result=&Apache::edit::tag_start($target,$token);
2413: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2414: $result.=&Apache::edit::end_table();
2415:
2416: }
2417: return $result;
2418: }
2419:
2420: sub end_startpartmarker {
2421: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2422: my @result;
2423: if ($target eq 'edit') { $result[1]='no'; }
2424: return @result;
2425: }
2426:
2427: sub start_endpartmarker {
2428: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2429: my $result='';
2430: if ($target eq 'edit') {
2431: $result=&Apache::edit::tag_start($target,$token);
2432: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2433: $result.=&Apache::edit::end_table();
2434:
2435: }
2436: return $result;
2437: }
2438:
2439: sub end_endpartmarker {
2440: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2441: my @result;
2442: if ($target eq 'edit') { $result[1]='no'; }
2443: return @result;
2444: }
2445:
2446:
2447:
2448:
2449:
1.11 albertel 2450: sub start_part {
1.326 albertel 2451: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2452: if (!$Apache::lonxml::metamode) {
2453: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2454: # duedates.
2455: }
1.159 albertel 2456: my $result='';
1.386 albertel 2457: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2458: $Apache::inputtags::part=$id;
1.177 albertel 2459: push(@Apache::inputtags::partlist,$id);
2460: @Apache::inputtags::response=();
1.159 albertel 2461: @Apache::inputtags::previous=();
2462: @Apache::inputtags::previous_version=();
1.405 albertel 2463: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2464: &Apache::response::reset_params();
2465:
1.159 albertel 2466: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2467: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2468: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 2469: my $in_order_show=&ordered_show_check();
1.214 albertel 2470: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2471: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2472: &Apache::run::run($expression,$safeeval);
1.159 albertel 2473:
2474: if ($target eq 'meta') {
1.224 www 2475: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2476: return &Apache::response::mandatory_part_meta.
2477: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2478: } elsif ($target eq 'web' || $target eq 'grade' ||
2479: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2480: if ($hidden || !$in_order_show) {
1.326 albertel 2481: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2482: } else {
2483: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2484: push (@Apache::inputtags::status,$status);
2485: my $expression='$external::datestatus="'.$status.'";';
2486: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2487: &Apache::run::run($expression,$safeeval);
1.284 albertel 2488: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2489: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2490: }
1.216 albertel 2491: if (( $status eq 'CLOSED' ) ||
2492: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2493: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2494: ( $status eq 'BANNED') ||
2495: ( $status eq 'UNAVAILABLE') ||
2496: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2497: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2498: $style);
1.159 albertel 2499: if ( $target eq "web" ) {
1.211 albertel 2500: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2501: } elsif ( $target eq 'tex' ) {
1.284 albertel 2502: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2503: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2504: } else {
1.211 albertel 2505: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2506: }
1.159 albertel 2507: }
2508: } else {
2509: if ($target eq 'tex') {
1.284 albertel 2510: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2511: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2512: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2513: } else {
2514: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2515: }
1.195 sakharuk 2516: }
1.159 albertel 2517: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2518: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.526 ! raeburn 2519: my @allkeys = split(/,/,$allkeys);
1.222 sakharuk 2520: my $allow_print_points = 0;
2521: foreach my $partial_key (@allkeys) {
1.230 albertel 2522: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2523: if ($1 ne '0') {$allow_print_points=1;}
2524: }
2525: }
1.275 albertel 2526: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2527: if (defined($maxtries) && $maxtries < 0) {
2528: $allow_print_points=0;
2529: }
1.302 albertel 2530: if (lc($env{'course.'.$env{'request.course.id'}.
2531: '.disableexampointprint'}) eq 'yes') {
2532: $allow_print_points=0;
2533: }
1.463 foxr 2534: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2535: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2536:
2537: }
1.233 www 2538: } elsif ($target eq 'web') {
1.479 raeburn 2539: if ($status eq 'CAN_ANSWER') {
2540: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2541: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
2542: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
2543: my $num = scalar(@Apache::inputtags::partlist)-1;
2544: if ($probrandomize eq 'randomizetry') {
2545: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
2546: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2547: } else {
2548: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2549: if ($probrandtries ne $reqtries) {
2550: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2551: }
2552: }
2553: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
2554: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2555: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2556: }
2557: }
1.475 raeburn 2558: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2559: }
2560: }
2561: }
2562: } elsif ($target eq 'edit') {
2563: $result.=&Apache::edit::tag_start($target,$token);
2564: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2565: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2566: ' '.
2567: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2568: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2569: } elsif ($target eq 'modified') {
2570: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2571: $safeeval,'id','display');
1.159 albertel 2572: if ($constructtag) {
1.225 albertel 2573: #limiting ids to only letters numbers, and space
1.224 www 2574: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2575: $result = &Apache::edit::rebuild_tag($token);
2576: }
2577: }
2578: return $result;
1.11 albertel 2579: }
2580:
2581: sub end_part {
1.159 albertel 2582: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2583: &Apache::lonxml::debug("in end_part $target ");
2584: my $status=$Apache::inputtags::status['-1'];
2585: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2586: my $in_order_show=&ordered_show_check();
1.321 albertel 2587: my $result;
2588: if (!$Apache::lonxml::metamode) {
2589: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2590: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2591: }
1.312 albertel 2592: if ($target eq 'grade') {
1.249 albertel 2593: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2594: !$hidden && $in_order_show) {
1.311 foxr 2595: $result.=&Apache::inputtags::grade;
1.249 albertel 2596: } else {
2597: # move any submission data to .hidden
2598: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2599: }
1.283 albertel 2600: } elsif (($target eq 'web' || $target eq 'tex') &&
2601: !$hidden && $in_order_show) {
1.159 albertel 2602: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2603: $target);
1.490 raeburn 2604: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2605: ($env{'form.grade_imsexport'})) {
1.212 albertel 2606: $gradestatus='';
2607: }
1.311 foxr 2608: $result.=$gradestatus;
1.265 sakharuk 2609: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2610: } elsif ($target eq 'edit') {
1.311 foxr 2611: $result.=&Apache::edit::end_table();
1.322 albertel 2612: } elsif ($target eq 'modified') {
2613: $result .= $token->[2];
1.159 albertel 2614: }
2615: pop @Apache::inputtags::status;
2616: $Apache::inputtags::part='';
1.295 albertel 2617: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2618: return $result;
1.11 albertel 2619: }
1.1 albertel 2620:
1.25 albertel 2621: sub start_preduedate {
1.326 albertel 2622: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2623: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2624: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2625: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2626: if (!$Apache::lonhomework::scantronmode &&
2627: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2628: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2629: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2630: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2631: }
1.24 albertel 2632: }
1.159 albertel 2633: return '';
1.24 albertel 2634: }
2635:
1.25 albertel 2636: sub end_preduedate {
1.159 albertel 2637: return '';
1.24 albertel 2638: }
2639:
1.369 foxr 2640: # In all the modes where <postanswerdate> text is
2641: # displayable, all we do is eat up the text between the start/stop
2642: # tags if the conditions are not right to display it.
1.25 albertel 2643: sub start_postanswerdate {
1.326 albertel 2644: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2645: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2646: &Apache::lonnet::allowed('pav',
2647: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2648: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2649: $target eq 'tex' ) {
1.300 albertel 2650: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2651: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2652: (($target eq 'tex') && !$pav)) {
1.326 albertel 2653: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2654: }
2655: }
2656: return '';
1.24 albertel 2657: }
2658:
1.25 albertel 2659: sub end_postanswerdate {
1.159 albertel 2660: return '';
1.24 albertel 2661: }
2662:
1.25 albertel 2663: sub start_notsolved {
1.326 albertel 2664: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2665: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2666: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2667: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2668: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2669: if ($gradestatus =~ /^correct/ &&
2670: &Apache::response::show_answer()) {
1.159 albertel 2671: &Apache::lonxml::debug("skipping");
1.326 albertel 2672: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2673: }
1.24 albertel 2674: }
1.159 albertel 2675: return '';
1.24 albertel 2676: }
2677:
1.25 albertel 2678: sub end_notsolved {
1.159 albertel 2679: return '';
1.24 albertel 2680: }
2681:
2682: sub start_solved {
1.326 albertel 2683: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2684: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2685: $target eq 'tex') {
2686: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2687: if ($gradestatus !~ /^correct/ ||
2688: !&Apache::response::show_answer()) {
1.326 albertel 2689: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2690: }
1.24 albertel 2691: }
1.159 albertel 2692: return '';
1.24 albertel 2693: }
2694:
2695: sub end_solved {
1.248 albertel 2696: return '';
2697: }
2698:
2699: sub start_problemtype {
1.326 albertel 2700: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2701: my $result;
1.339 albertel 2702: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2703: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2704: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2705: if (!defined($mode)) { $mode='show'; }
2706: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2707: my $found=0;
2708: foreach my $type (split(',',$for)) {
2709: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2710: }
2711: if ($mode eq 'show' && !$found) {
1.326 albertel 2712: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2713: }
2714: if ($mode eq 'hide' && $found) {
1.326 albertel 2715: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2716: }
2717: } elsif ($target eq 'edit') {
2718: $result .=&Apache::edit::tag_start($target,$token);
2719: $result.=&Apache::edit::select_arg('Mode:','mode',
2720: [['show','Show'],
2721: ['hide','Hide']]
2722: ,$token);
2723: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.511 bisitz 2724: [ ['exam','Bubblesheet Exam/Quiz Problem'],
1.248 albertel 2725: ['survey','Survey'],
1.465 raeburn 2726: ['surveycred','Survey (with credit)'],
2727: ['anonsurvey','Anonymous Survey'],
2728: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2729: ['problem','Homework Problem'],
1.479 raeburn 2730: ['practice','Practice Problem'],
2731: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2732: ,$token);
2733: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2734: } elsif ($target eq 'modified') {
2735: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2736: $safeeval,'mode','for');
2737: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2738: }
2739: return $result;
2740: }
2741:
2742: sub end_problemtype {
1.159 albertel 2743: return '';
1.24 albertel 2744: }
1.34 albertel 2745:
2746: sub start_startouttext {
1.159 albertel 2747: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2748: my @result=(''.'');
2749: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2750:
2751: my $nesting =
2752: &Apache::lonxml::set_state('outtext',
2753: &Apache::lonxml::get_state('outtext')+1);
2754: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2755: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2756: }
1.159 albertel 2757: return (@result);
1.34 albertel 2758: }
1.159 albertel 2759:
1.34 albertel 2760: sub end_startouttext {
1.326 albertel 2761: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2762: my $result='';
2763: my $text='';
2764: if ($target eq 'edit') {
1.424 foxr 2765: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2766: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 2767: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 2768: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2769: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 2770: .'</span></td>'
1.515 golterma 2771: .'<td><span id="math_'.$areaid.'">'
1.474 raeburn 2772: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
1.512 bisitz 2773: .'</span></td>'
1.474 raeburn 2774: .'<td>'
2775: .&Apache::edit::insertlist($target,$token)
2776: .'</td>'
1.515 golterma 2777: .'<td class="LC_edit_problem_latexhelper">' .
1.474 raeburn 2778: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2779: &Apache::edit::end_row().
1.362 albertel 2780: &Apache::edit::start_spanning_row()."\n".
1.255 www 2781: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2782: }
2783: if ($target eq 'modified') {
1.219 albertel 2784: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2785: }
2786: if ($target eq 'tex') {
2787: $result .= '\noindent ';
2788: }
2789: return $result;
1.34 albertel 2790: }
1.159 albertel 2791:
1.34 albertel 2792: sub start_endouttext {
1.159 albertel 2793: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2794: my $result='';
2795: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2796: if ($target eq "modified") {
2797: $result='<endouttext />'.
1.377 albertel 2798: &Apache::edit::handle_insertafter('startouttext');
2799: }
1.404 albertel 2800:
2801: my $nesting =
2802: &Apache::lonxml::set_state('outtext',
2803: &Apache::lonxml::get_state('outtext')-1);
2804: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2805: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2806: &Apache::lonxml::set_state('outtext', 0);
2807: }
1.159 albertel 2808: return $result;
1.34 albertel 2809: }
1.159 albertel 2810:
1.34 albertel 2811: sub end_endouttext {
1.159 albertel 2812: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2813: my @result=('','');
2814: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2815: return (@result);
1.34 albertel 2816: }
1.159 albertel 2817:
1.45 albertel 2818: sub delete_startouttext {
1.326 albertel 2819: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2820: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2821: my $text=$$parser['-1']->get_text("/endouttext");
2822: my $ntoken=$$parser['-1']->get_token();
2823: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2824: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2825: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2826: # they did the last time round
2827: &Apache::lonxml::increasedepth($ntoken);
2828: &Apache::lonxml::decreasedepth($ntoken);
2829: return 1;
1.193 www 2830: }
2831:
2832: sub start_simpleeditbutton {
2833: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2834: my $result='';
1.284 albertel 2835: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2836: ($target eq 'web') &&
1.330 albertel 2837: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2838: my $url=$env{'request.noversionuri'};
1.193 www 2839: $url=~s/\?.*$//;
1.367 albertel 2840: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 2841: # Warning makes more sense and is more important on edit screen
1.442 bisitz 2842: # $result='<p class="LC_warning">'
2843: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2844: # .&Apache::loncommon::help_open_topic('Caching')
2845: # .'</p>';
1.486 www 2846: $result.=&Apache::loncommon::head_subbox(
2847: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 2848: .&Apache::lonhtmlcommon::add_item_funclist(
2849: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
2850: .&mt('Edit').'</a>')
1.486 www 2851: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 2852:
1.193 www 2853: }
2854: return $result;
2855: }
2856:
2857: sub end_simpleeditbutton {
2858: return '';
1.45 albertel 2859: }
1.34 albertel 2860:
1.428 raeburn 2861: sub practice_problem_header {
2862: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2863: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2864: '</span>';
2865: }
2866:
1.479 raeburn 2867: sub randomizetry_problem_header {
2868: my ($problemstatus,$reqtries) = @_;
2869: my ($header,$text);
2870: if ($reqtries > 1) {
2871: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
2872: if (($problemstatus eq 'no') ||
2873: ($problemstatus eq 'no_feedback_ever')) {
2874: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2875: } else {
2876: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2877: }
2878: } else {
2879: $header = &mt('New Problem Variation Each Try');
2880: if (($problemstatus eq 'no') ||
2881: ($problemstatus eq 'no_feedback_ever')) {
2882: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
2883:
2884: } else {
2885: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
2886: }
2887: }
2888: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
2889: '<span class="LC_info">'.$text.'</span><hr />';
2890: }
2891:
2892: sub randomizetry_part_header {
2893: my ($problemstatus,$reqtries,$num) = @_;
2894: my ($header,$text);
2895: if ($reqtries eq 'none') {
2896: $header = &mt('No Question Variation');
2897: $text = &mt('For this question there will no new variation after a try.');
2898: } elsif ($reqtries > 1) {
2899: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
2900: if (($problemstatus eq 'no') ||
2901: ($problemstatus eq 'no_feedback_ever')) {
2902: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2903: } else {
2904: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2905: }
2906: } else {
2907: $header = &mt('New Question Variation For Each Try');
2908: if (($problemstatus eq 'no') ||
2909: ($problemstatus eq 'no_feedback_ever')) {
2910: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
2911: } else {
2912: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
2913: }
2914: }
2915: my $output;
2916: if ($num > 1) {
2917: $output .= '<hr />';
2918: }
2919: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
2920: '<span class="LC_info">'.$text.'</span><br /><br />';
2921: return $output;
2922: }
2923:
1.1 albertel 2924: 1;
2925: __END__
1.435 jms 2926:
2927: =pod
2928:
2929: =back
2930:
2931: =cut
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