Annotation of loncom/homework/structuretags.pm, revision 1.523
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.523 ! raeburn 4: # $Id: structuretags.pm,v 1.522 2014/09/16 13:28:30 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";
422: }
1.159 albertel 423: }
1.343 albertel 424:
1.446 bisitz 425: my $pageheader = '';
1.344 albertel 426: if (defined($found{'body'})) {
427: $body_args{'skip_phases'}{'body'}=1;
428: } elsif (!defined($found{'body'})
429: && $env{'request.state'} eq 'construct') {
1.343 albertel 430: if ($target eq 'web' || $target eq 'edit') {
1.513 raeburn 431: # Breadcrumbs for Authoring Space
1.450 bisitz 432: &Apache::lonhtmlcommon::clear_breadcrumbs();
433: &Apache::lonhtmlcommon::add_breadcrumb({
1.513 raeburn 434: 'text' => 'Authoring Space',
1.497 raeburn 435: 'href' => &Apache::loncommon::authorspace($env{'request.uri'}),
1.450 bisitz 436: });
1.460 droeschl 437: # breadcrumbs (and tools) will be created
438: # in start_page->bodytag->innerregister
439:
1.450 bisitz 440: # FIXME Where are we?
441: # &Apache::lonhtmlcommon::add_breadcrumb({
442: # 'text' => 'Problem Editing', # 'Problem Testing'
443: # 'href' => '',
444: # });
1.460 droeschl 445: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 446: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 447: }
1.272 albertel 448: } elsif (!defined($found{'body'})) {
1.343 albertel 449: my %add_entries;
1.159 albertel 450: my $background=&Apache::lonxml::get_param('background',$parstack,
451: $safeeval);
1.343 albertel 452: if ($background ne '' ) {
453: $add_entries{'background'} = $background;
454: }
1.344 albertel 455:
1.290 albertel 456: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
457: $safeeval);
1.446 bisitz 458: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 459:
1.446 bisitz 460: $body_args{'bgcolor'} = $bgcolor;
461: # $body_args{'no_title'} = 1;
462: $body_args{'force_register'} = 1;
463: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 464: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 465: $body_args{'only_body'} = 1;
1.518 raeburn 466: } elsif ($target eq 'web') {
467: $body_args{'print_suppress'} = 1;
1.446 bisitz 468: }
1.344 albertel 469: }
1.365 albertel 470: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 471: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
472: \%body_args);
1.446 bisitz 473: $page_start .= $pageheader;
1.462 raeburn 474: if (!defined($found{'body'})
475: && $env{'request.state'} ne 'construct'
476: && ($target eq 'web' || $target eq 'webgrade')) {
477:
478: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
479: if ($symb eq '' && !$publicuser) {
480: $page_start .= '<p class="LC_info">'
481: .&mt('Browsing resource, all submissions are temporary.')
482: .'</p>';
1.457 bisitz 483: }
1.344 albertel 484: }
485:
1.409 albertel 486: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 487: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 488: }
489: my $form_tag_start;
490: if (!defined($found{'form'})) {
1.337 albertel 491: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 492: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 493: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 494: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 495: $form_tag_start.=$uri.'" ';
496: if ($target eq 'edit') {
497: $form_tag_start.=&Apache::edit::form_change_detection();
498: }
1.493 raeburn 499: my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
500: my ($path,$multiresp) =
501: &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
1.495 raeburn 502: if (($is_task) || ($needs_upload)) {
503: $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
1.478 raeburn 504: }
1.368 albertel 505: $form_tag_start.='>'."\n";
1.355 albertel 506:
507: if ($symb =~ /\S/) {
508: $symb=
509: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
510: $form_tag_start.=
1.368 albertel 511: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 512: }
1.159 albertel 513: }
1.343 albertel 514: return ($page_start,$form_tag_start);
1.105 albertel 515: }
516:
1.141 matthew 517: #use Time::HiRes();
1.105 albertel 518: sub get_resource_name {
1.159 albertel 519: my ($parstack,$safeeval)=@_;
1.388 foxr 520: my $name;
1.204 albertel 521: if (defined($Apache::lonhomework::name)) {
1.388 foxr 522: $name = $Apache::lonhomework::name;
523: } else {
524: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 525: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 526: if ($name eq '') {
527: $name=&Apache::lonnet::EXT('resource.title');
528: if ($name eq 'con_lost') { $name = ''; }
529: }
530: if ($name!~/\S+/) {
531: $name=$env{'request.uri'};
532: $name=~s-.*/([^/]+)$-$1-;
533: }
534: # The name has had html tags escaped:
535:
536: $name=~s/</</gs;
537: $name=~s/>/>/gs;
538:
539: $Apache::lonhomework::name=$name;
1.204 albertel 540: }
1.159 albertel 541: return $name;
1.105 albertel 542: }
543:
544: sub setup_rndseed {
1.479 raeburn 545: my ($safeeval,$target)=@_;
1.367 albertel 546: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 547: my ($questiontype,$set_safespace,$rndseed);
548: if ($target eq 'analyze') {
549: $questiontype = $env{'form.grade_questiontype'};
550: }
551: unless (defined($questiontype)) {
552: $questiontype = $Apache::lonhomework::type;
553: }
1.333 albertel 554: if ($env{'request.state'} eq "construct"
555: || $symb eq ''
556: || $Apache::lonhomework::type eq 'practice'
557: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 558: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 559: ['rndseed']);
1.284 albertel 560: $rndseed=$env{'form.rndseed'};
1.159 albertel 561: if (!$rndseed) {
1.162 albertel 562: $rndseed=$Apache::lonhomework::history{'rndseed'};
563: if (!$rndseed) {
564: $rndseed=time;
565: }
1.284 albertel 566: $env{'form.rndseed'}=$rndseed;
1.162 albertel 567: }
1.479 raeburn 568: if (($env{'request.state'} eq "construct") &&
569: ($Apache::lonhomework::type eq 'randomizetry')) {
570: my $tries = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
571: if ($tries) {
572: $rndseed += $tries;
573: }
1.480 raeburn 574: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 575: }
1.374 albertel 576: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
577: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 578: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 579: srand(time);
580: $rndseed=int(rand(2100000000));
1.284 albertel 581: $env{'form.rndseed'}=$rndseed;
582: delete($env{'form.resetdata'});
583: delete($env{'form.newrandomization'});
1.159 albertel 584: }
1.488 www 585: $rndseed=~s/\,/\:/g;
586: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 587: if (defined($rndseed)) {
588: my ($c1,$c2)=split(/\:/,$rndseed);
589: unless ($c2) { $c2=0; }
590: unless (($c1==int($c1)) && ($c2==int($c2))) {
591: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
592: }
1.187 albertel 593: }
1.247 albertel 594: if ($Apache::lonhomework::history{'resource.CODE'}) {
595: $rndseed=&Apache::lonnet::rndseed();
596: }
1.479 raeburn 597: $set_safespace = 1;
598: } elsif ($questiontype eq 'randomizetry') {
599: if ($target eq 'analyze') {
600: if (defined($env{'form.grade_rndseed'})) {
601: $rndseed = $env{'form.grade_rndseed'};
602: }
603: }
604: unless (($target eq 'analyze') && (defined($rndseed))) {
605: $rndseed=&Apache::lonnet::rndseed();
606: my $curr_try = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
607: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
608: $curr_try ++;
609: }
610: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
611: $rndseed = $1;
612: }
613: if ($curr_try) {
614: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
615: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
616: my $inc = int(($curr_try-1)/$reqtries);
617: $rndseed += $inc;
618: } else {
619: $rndseed += $curr_try;
620: }
621: }
622: }
623: $set_safespace = 1;
624: }
625: if ($set_safespace) {
626: if ($safeeval) {
627: &Apache::lonxml::debug("Setting rndseed to $rndseed");
628: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
629: }
630: }
631: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
632: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 633: }
634: return $rndseed;
1.105 albertel 635: }
636:
1.268 albertel 637: sub remember_problem_state {
638: return '
1.284 albertel 639: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
640: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
641: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 642: }
643:
1.487 www 644: sub problem_edit_action_button {
645: my ($name,$action,$accesskey,$text,$flag)=@_;
646: my $actionscript="setmode(this.form,'$action')";
647: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
648: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
649: }
650:
1.423 www 651: sub problem_edit_buttons {
1.487 www 652: my ($mode)=@_;
653: # Buttons that do not save
654: my $result='<div class="LC_edit_problem_discards">'.
655: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
656: if ($mode eq 'editxml') {
657: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
658: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
659: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
660: } else {
661: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
662: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
663: }
664: $result.="\n</div>";
665: # Buttons that save
666: $result.='<div class="LC_edit_problem_saves">';
667: if ($mode eq 'editxml') {
668: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
669: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
670: } else {
671: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
672: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
673: }
674: $result.="\n</div>\n";
675: return $result;
1.423 www 676: }
677:
678: sub problem_edit_header {
1.487 www 679: return '<input type="hidden" name="submitted" value="edit" />'.
680: &remember_problem_state('edit').'
1.423 www 681: <div class="LC_edit_problem_header">
682: <div class="LC_edit_problem_header_title">
683: '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
684: </div>'.
1.487 www 685: '<input type="hidden" name="problemmode" value="saveedit" />'.
1.423 www 686: &problem_edit_buttons().'
1.459 bisitz 687: <hr style="clear:both;" />
1.409 albertel 688: '.&Apache::lonxml::message_location().'
1.408 albertel 689: </div>
690: '.
1.515 golterma 691: '<table id="LC_edit_problem_colorful" border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
1.105 albertel 692: }
693:
694: sub problem_edit_footer {
1.412 albertel 695: return '</td></tr></table><br />
696: <div class="LC_edit_problem_footer">
1.453 bisitz 697: <hr />'.
1.423 www 698: &problem_edit_buttons().'
1.459 bisitz 699: <hr style="clear:both;" />
1.412 albertel 700: </div>
701: '.
1.342 albertel 702: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 703: }
704:
1.235 albertel 705: sub option {
706: my ($value,$name) = @_;
707: my $result ="<option value='".$value."' ";
1.284 albertel 708: if ($env{'form.'.$name} eq $value) {
1.235 albertel 709: $result.=" selected='on' ";
710: }
711: $result.='>';
712: return $result;
713: }
714:
1.105 albertel 715: sub problem_web_to_edit_header {
1.159 albertel 716: my ($rndseed)=@_;
1.406 albertel 717: my $result .= '<div class="LC_edit_problem_header">';
718:
719: if (!$Apache::lonhomework::parsing_a_task) {
720: $result .=
721: '<div class="LC_edit_problem_header_title">'.
722: &mt('Problem Testing').
723: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
724: '</div>';
725: } else {
726: $result .=
727: '<div class="LC_edit_problem_header_title">'.
728: &mt('Task Testing').
729: '</div>';
730: }
731:
1.315 albertel 732: my $show_all_foils_text =
733: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 734: &mt('Show All Instances')
735: : &mt('Show All Foils');
1.315 albertel 736:
1.452 bisitz 737: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
738: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 739: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 740: $show_all.= ' /> '.$show_all_foils_text
741: .'</label></span>';
1.406 albertel 742:
743:
1.384 albertel 744:
1.406 albertel 745: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 746: if (!$Apache::lonhomework::parsing_a_task) {
747: $result.="
1.406 albertel 748: <div class='LC_edit_problem_header_row1'>
749: <span class=\"LC_nobreak\">
1.405 albertel 750: ".&mt("Problem Status:")."
1.235 albertel 751: <select name='problemstate'>
1.270 albertel 752: <option value=''></option>
1.235 albertel 753: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
754: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
755: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
756: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
757: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
758: </select>
1.406 albertel 759: </span>
760: <span class=\"LC_nobreak\">
1.405 albertel 761: ".&mt("Problem Type:")."
1.235 albertel 762: <select name='problemtype'>
1.270 albertel 763: <option value=''></option>
1.509 bisitz 764: ".&option('exam' ,'problemtype').&mt("Bubblesheet Exam Problem")."</option>
1.428 raeburn 765: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 766: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 767: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
768: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
769: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 770: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 771: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 772: </select>
1.406 albertel 773: </span>
774: $show_all
775: </div>
776: <div class='LC_edit_problem_header_row2'>
777: <span class=\"LC_nobreak\">
1.405 albertel 778: ".&mt("Feedback Mode:")."
1.235 albertel 779: <select name='problemstatus'>
780: <option value=''></option>
1.242 albertel 781: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.517 bisitz 782: ".&option('no', 'problemstatus').&mt("Don't Show Incorrect/Correct Feedback")."</option>
1.405 albertel 783: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 784: </select>
1.406 albertel 785: </span>
786: ";
787:
1.376 albertel 788: } elsif ($Apache::lonhomework::parsing_a_task) {
789: $result.="
1.406 albertel 790: <div class='LC_edit_problem_header_row1'>
791: <span class=\"LC_nobreak\">
1.405 albertel 792: ".&mt("Problem Status:")."
1.376 albertel 793: <select name='problemstate'>
794: <option value=''></option>
795: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
796: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
797: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
798: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
799: </select>
1.406 albertel 800: </span>
801: $show_all
802: ";
803: }
804: $result.='
805: <span class="LC_nobreak">
806: '.&mt('Apply style file: ').'
807: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
808: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
809: </span>
1.422 www 810: </div>
811: <div class="LC_edit_problem_header_row1">'.
812: &Apache::lonxml::renderingoptions().'
1.406 albertel 813: </div>
814: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
815: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
816: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
817: </div>
1.453 bisitz 818: <hr />
1.406 albertel 819: <div class="LC_edit_problem_header_randomize_row">
820: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
821: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 822: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 823: $rndseed.'"
824: onchange="javascript:document.lonhomework.changerandseed.click()" />';
825:
826: if (!$Apache::lonhomework::parsing_a_task) {
827: my $numtoanalyze=$env{'form.numtoanalyze'};
828: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 829: $result .= '<span class="LC_nobreak">'.
830: &mt('[_1] for [_2] versions.',
1.416 raeburn 831: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 832: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
833: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 834: $numtoanalyze.'" size="5" />').
835: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
836: '</span>';
837:
1.313 albertel 838: }
1.406 albertel 839:
840: $result.='
841: </div>
1.453 bisitz 842: <hr />
1.447 bisitz 843: <div>';
1.416 raeburn 844: $result.='<input type="hidden" name="problemmode" value="view" />';
845: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
846: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
847: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
848: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 849: $result.='
850: </div>
1.453 bisitz 851: <hr />
1.409 albertel 852: '.&Apache::lonxml::message_location().'
1.406 albertel 853: </div>';
1.159 albertel 854: return $result;
1.48 albertel 855: }
856:
1.65 albertel 857: sub initialize_storage {
1.357 albertel 858: my ($given_symb) = @_;
1.353 albertel 859: undef(%Apache::lonhomework::results);
860: undef(%Apache::lonhomework::history);
1.357 albertel 861: my ($symb,$courseid,$domain,$name) =
1.367 albertel 862: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 863:
864: # anonymous users (CODEd exams) have no data
865: if ($name eq 'anonymous'
866: && !defined($domain)) {
867: return;
868: }
869:
1.333 albertel 870: if ($env{'request.state'} eq 'construct'
871: || $symb eq ''
872: || $Apache::lonhomework::type eq 'practice') {
873:
874: my $namespace = $symb || $env{'request.uri'};
875: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 876: ($env{'form.resetdata'} eq &mt('New Problem Variation')
877: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 878: $env{'form.newrandomization'} eq &mt('New Randomization')) {
879: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
880: &Apache::lonxml::debug("Attempt reset");
881: }
1.159 albertel 882: %Apache::lonhomework::history=
1.333 albertel 883: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 884: my ($temp)=keys %Apache::lonhomework::history ;
885: &Apache::lonxml::debug("Return message of $temp");
886: } else {
887: %Apache::lonhomework::history=
888: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
889: }
1.353 albertel 890:
1.159 albertel 891: #ignore error conditions
1.67 albertel 892: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 893: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 894: }
895:
1.435 jms 896: =pod
897:
898: =item finalize_storage()
899:
1.523 ! raeburn 900: Stores away the result hash to a student's environment
! 901: checks form.grade_ for specific values, otherwise stores
! 902: to the running user's environment.
1.435 jms 903: Will increment totals for attempts, students, and corrects
904: if running user has student role.
905:
906: =cut
907:
908:
1.65 albertel 909: sub finalize_storage {
1.357 albertel 910: my ($given_symb) = @_;
1.159 albertel 911: my $result;
1.289 albertel 912: if (%Apache::lonhomework::results) {
1.323 albertel 913: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
914: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 915: my ($symb,$courseid,$domain,$name) =
1.367 albertel 916: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 917: if ($env{'request.state'} eq 'construct'
918: || $symb eq ''
919: || $Apache::lonhomework::type eq 'practice') {
920: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 921: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 922: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 923: $namespace,'',$domain,$name);
1.159 albertel 924: &Apache::lonxml::debug('Construct Store return message:'.$result);
925: } else {
926: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
927: $symb,$courseid,$domain,$name);
928: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 929: &store_aggregates($symb,$courseid);
1.159 albertel 930: }
1.323 albertel 931: } else {
932: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 933: }
1.159 albertel 934: return $result;
1.65 albertel 935: }
936:
1.435 jms 937: =pod
938:
939: item store_aggregates()
940:
941: Sends hash of values to be incremented in nohist_resourcetracker.db
942: for the course. Increments total number of attempts, unique students
943: and corrects for each part for an instance of a problem, as appropriate.
944:
945: =cut
946:
1.285 raeburn 947: sub store_aggregates {
948: my ($symb,$courseid) = @_;
1.479 raeburn 949: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 950: my @parts;
1.288 albertel 951: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
952: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 953: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 954: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 955: push(@parts, $1);
1.285 raeburn 956: }
957: }
1.286 albertel 958: foreach my $part (@parts) {
1.470 raeburn 959: if ($env{'request.role'} =~/^st/) {
960: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
961: eq 'APPROX_ANS' ||
962: $Apache::lonhomework::results{'resource.'.$part.'.award'}
963: eq 'EXACT_ANS') {
964: $aggregate{$symb."\0".$part."\0correct"} = 1;
965: }
966: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
967: $aggregate{$symb."\0".$part."\0users"} = 1;
968: } else {
969: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
970: if ($last_reset) {
971: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
972: $aggregate{$symb."\0".$part."\0users"} = 1;
973: }
974: }
975: }
976: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 977: }
1.470 raeburn 978: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 979: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
980: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
981: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
982: $randtrycounter{$symb."\0".$part} = 1;
983: } else {
984: $anoncounter{$symb."\0".$part} = 1;
985: }
1.470 raeburn 986: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
987: if ($needsrelease) {
988: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
989: if ($curr_required eq '') {
1.471 raeburn 990: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 991: } else {
992: my ($currmajor,$currminor) = split(/\./,$curr_required);
993: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
994: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 995: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 996: }
1.292 raeburn 997: }
998: }
1.285 raeburn 999: }
1000: }
1.292 raeburn 1001: if (keys (%aggregate) > 0) {
1.289 albertel 1002: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 1003: $cdomain,$cname);
1004: }
1.472 raeburn 1005: if (keys(%anoncounter) > 0) {
1.481 raeburn 1006: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
1007: $cdomain,$cname);
1.472 raeburn 1008: }
1.479 raeburn 1009: if (keys(%randtrycounter) > 0) {
1.481 raeburn 1010: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
1011: $cdomain,$cname);
1.479 raeburn 1012: }
1.292 raeburn 1013: }
1.289 albertel 1014:
1.65 albertel 1015: sub checkout_msg {
1.211 albertel 1016: my %lt=&Apache::lonlocal::texthash(
1017: 'resource'=>'The resource needs to be checked out',
1018: '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.',
1019: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
1.509 bisitz 1020: 'checkout'=>'Check out Bubblesheet Exam for Viewing',
1021: 'checkout?'=>'Check out Bubblesheet Exam?');
1.352 albertel 1022: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 1023: return (<<ENDCHECKOUT);
1.211 albertel 1024: <h2>$lt{'resource'}</h2>
1025: <p>$lt{'id_expln'}</p>
1.449 bisitz 1026: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 1027: <form name="checkout" method="post" action="$uri">
1.91 albertel 1028: <input type="hidden" name="doescheckout" value="yes" />
1.514 bisitz 1029: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onclick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 1030: </form>
1031: ENDCHECKOUT
1032: }
1033:
1.252 albertel 1034: sub firstaccess_msg {
1.253 albertel 1035: my ($time,$symb)=@_;
1.414 albertel 1036: my $result;
1037: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1038: if ($interval[1] eq 'map') {
1039: my ($map)=&Apache::lonnet::decode_symb($symb);
1040: my $foldertitle=&Apache::lonnet::gettitle($map);
1041:
1042: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 1043: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
1044: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1045: ,$foldertitle,$time)."</p>";
1.414 albertel 1046: } elsif ($interval[1] eq 'course') {
1047: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 1048: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 1049: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 1050: ,$course,$time)."</p>";
1.414 albertel 1051: } else {
1052: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1053: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1054: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1055: ,$title,$time)."</p>";
1.414 albertel 1056: }
1.352 albertel 1057: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1058: my $buttontext = &mt('Show Resource');
1059: my $timertext = &mt('Start Timer?');
1.414 albertel 1060: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1061: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1062: <input type="hidden" name="markaccess" value="yes" />
1.514 bisitz 1063: <input type="button" name="accessbutton" value="$buttontext" onclick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1064: </form>
1065: ENDCHECKOUT
1.414 albertel 1066: return $result;
1.252 albertel 1067: }
1068:
1.204 albertel 1069: sub init_problem_globals {
1070: my ($type)=@_;
1071: #initialize globals
1.308 foxr 1072: # For problems, we start out in part 0 (outside a <part> tag).
1073: # and part 0 is used to describe the main body of the <problem>
1074: #
1.204 albertel 1075: if ($type eq 'problem') {
1076: $Apache::inputtags::part='0';
1077: @Apache::inputtags::partlist=('0');
1.405 albertel 1078: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1079: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1080:
1.266 albertel 1081: } elsif ($type eq 'library') {
1.204 albertel 1082: $Apache::inputtags::part='';
1083: @Apache::inputtags::partlist=();
1.405 albertel 1084: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1085: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1086:
1.304 albertel 1087: } elsif ($type eq 'Task') {
1088: $Apache::inputtags::part='0';
1089: @Apache::inputtags::partlist=('0');
1.405 albertel 1090: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1091: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1092: }
1.477 www 1093: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1094: @Apache::inputtags::responselist = ();
1095: @Apache::inputtags::importlist = ();
1096: @Apache::inputtags::previous=();
1097: @Apache::inputtags::previous_version=();
1098: $Apache::structuretags::printanswer='No';
1099: @Apache::structuretags::whileconds=();
1100: @Apache::structuretags::whilebody=();
1101: @Apache::structuretags::whileline=();
1102: $Apache::lonhomework::scantronmode=0;
1103: undef($Apache::lonhomework::name);
1.358 albertel 1104: undef($Apache::lonhomework::default_type);
1105: undef($Apache::lonhomework::type);
1.204 albertel 1106: }
1107:
1108: sub reset_problem_globals {
1109: my ($type)=@_;
1110: undef(%Apache::lonhomework::history);
1111: undef(%Apache::lonhomework::results);
1112: undef($Apache::inputtags::part);
1.498 raeburn 1113: if ($type eq 'Task') {
1114: undef($Apache::inputtags::slot_name);
1115: }
1.208 albertel 1116: #don't undef this, lonhomework.pm takes care of this, we use this to
1117: #detect if we try to do 2 problems in one file
1118: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1119: undef($Apache::lonhomework::name);
1.358 albertel 1120: undef($Apache::lonhomework::default_type);
1121: undef($Apache::lonhomework::type);
1122: undef($Apache::lonhomework::scantronmode);
1123: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1124: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1125: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1126: }
1127:
1.241 albertel 1128: sub set_problem_state {
1.240 albertel 1129: my ($part)=@_;
1.284 albertel 1130: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1131: $Apache::lonhomework::history{"resource.$part.solved"}=
1132: 'correct_by_student';
1133: }
1134: }
1135:
1.241 albertel 1136: sub get_problem_status {
1137: my ($part)=@_;
1.267 albertel 1138: my $problem_status;
1.284 albertel 1139: if ($env{'request.state'} eq 'construct' &&
1140: defined($env{'form.problemstatus'})) {
1141: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1142: } else {
1143: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1144: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1145: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1146: }
1147: return $problem_status;
1148: }
1149:
1.9 albertel 1150: sub start_problem {
1.326 albertel 1151: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1152:
1.311 foxr 1153: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1154: if (!$Apache::lonxml::metamode) {
1155: &Apache::lonxml::startredirection();
1156: }
1.311 foxr 1157:
1.308 foxr 1158: # Problems don't nest and we don't allow more than one <problem> in
1159: # a .problem file.
1160: #
1.184 albertel 1161: if ( $Apache::inputtags::part ne '' ||
1162: $Apache::lonhomework::parsing_a_problem) {
1163: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1164: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1165: return '';
1166: }
1.184 albertel 1167:
1168: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1169: &init_problem_globals('problem');
1.166 albertel 1170:
1.284 albertel 1171: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1172: $Apache::lonhomework::scantronmode=1;
1173: }
1.161 albertel 1174:
1.159 albertel 1175: if ($target ne 'analyze') {
1.415 raeburn 1176: my $type = &Apache::lonnet::EXT('resource.0.type');
1177: $Apache::lonhomework::type=$type;
1.284 albertel 1178: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1179: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1180: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1181: }
1.332 albertel 1182: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1183: }
1.164 albertel 1184: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1185: my $uri=$env{'request.uri'};
1.159 albertel 1186: if ($uri=~/\.(\w+)$/) {
1187: $Apache::lonhomework::type=$1;
1188: &Apache::lonxml::debug("Using type of $1");
1189: } else {
1190: $Apache::lonhomework::type='problem';
1191: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1192: }
1.87 albertel 1193: }
1.301 albertel 1194: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1195:
1.363 albertel 1196: &initialize_storage();
1.389 albertel 1197: if ($target ne 'analyze'
1198: && $env{'request.state'} eq 'construct') {
1199: &set_problem_state('0');
1200: }
1201:
1.366 albertel 1202: if ($target eq 'web') {
1203: &Apache::lonxml::debug(" grading history ");
1204: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1205: }
1.363 albertel 1206:
1.159 albertel 1207: #added vars to the scripting enviroment
1.213 albertel 1208: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1209: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1210: &Apache::run::run($expression,$safeeval);
1.159 albertel 1211: my $status;
1212: my $accessmsg;
1.508 raeburn 1213: my $resource_due;
1.159 albertel 1214:
1.343 albertel 1215: my $name= &get_resource_name($parstack,$safeeval);
1.506 raeburn 1216: my ($result,$form_tag_start,$slot_name,$slot);
1217:
1218: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1219: $target eq 'tex') {
1220: if ($env{'form.markaccess'}) {
1221: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1.519 raeburn 1222: &Apache::lonnet::set_first_access($interval[1],$interval[0]);
1.506 raeburn 1223: }
1224:
1225: ($status,$accessmsg,$slot_name,$slot) =
1226: &Apache::lonhomework::check_slot_access('0','problem');
1227: push (@Apache::inputtags::status,$status);
1228: }
1229:
1.354 albertel 1230: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1231: || $target eq 'edit') {
1.350 albertel 1232: ($result,$form_tag_start) =
1233: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1234: $name);
1235: }
1236:
1.284 albertel 1237: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1238:
1.479 raeburn 1239: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1240: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1241: $target eq 'tex') {
1.479 raeburn 1242:
1.159 albertel 1243: #handle rand seed in construction space
1.479 raeburn 1244: my $rndseed=&setup_rndseed($safeeval,$target);
1.367 albertel 1245: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 1246:
1.333 albertel 1247: if ($env{'request.state'} ne "construct" &&
1248: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1249: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1250: $rndseed.'" />'.
1251: '<input type="submit" name="resetdata"
1252: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1253: if (exists($env{'form.username'})) {
1254: $form_tag_start.=
1.164 albertel 1255: '<input type="hidden" name="username"
1.284 albertel 1256: value="'.$env{'form.username'}.'" />';
1.334 albertel 1257: }
1.462 raeburn 1258: if ($env{'request.role.adv'}) {
1259: $form_tag_start.= ' <label class="LC_nobreak">'
1260: .'<input type="checkbox" name="showallfoils"';
1261: if (defined($env{'form.showallfoils'})) {
1262: $form_tag_start.=' checked="checked"';
1263: }
1264: $form_tag_start.= ' /> '
1265: .&mt('Show All Foils')
1266: .'</label>';
1267: }
1.417 www 1268: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1269: $form_tag_start.=&practice_problem_header();
1.417 www 1270: }
1.462 raeburn 1271: $form_tag_start.='<hr />';
1.479 raeburn 1272: } elsif (($env{'request.state'} ne "construct") &&
1273: ($Apache::lonhomework::type eq 'randomizetry') &&
1274: ($status eq 'CAN_ANSWER')) {
1275: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1276: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1277: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1278: }
1.324 albertel 1279:
1.159 albertel 1280: my $expression='$external::datestatus="'.$status.'";';
1281: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1282: &Apache::run::run($expression,$safeeval);
1283: &Apache::lonxml::debug("Got $status");
1.324 albertel 1284:
1.159 albertel 1285: if (( $status eq 'CLOSED' ) ||
1286: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1287: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1288: ( $status eq 'BANNED') ||
1.216 albertel 1289: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1290: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1291: ( $status eq 'NOTRESERVABLE') ||
1292: ( $status eq 'RESERVABLE') ||
1293: ( $status eq 'RESERVABLE_LATER') ||
1.216 albertel 1294: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1295: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1296: $style);
1.159 albertel 1297: if ( $target eq "web" ) {
1.343 albertel 1298: my $msg;
1.159 albertel 1299: if ($status eq 'UNAVAILABLE') {
1.504 golterma 1300: $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1.441 raeburn 1301: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.504 golterma 1302: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1.499 raeburn 1303: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1304: ($status eq 'NOTRESERVABLE')) {
1.504 golterma 1305: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1.253 albertel 1306: } elsif ($status ne 'NOT_YET_VIEWED') {
1.504 golterma 1307: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1.499 raeburn 1308: }
1.216 albertel 1309: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1310: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1311: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1312: $msg.=&checkout_msg();
1.252 albertel 1313: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1314: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1315: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1316: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.499 raeburn 1317: } elsif ($status eq 'RESERVABLE') {
1318: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1319: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1320: '<br />'.
1321: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1322: } elsif ($status eq 'RESERVABLE_LATER') {
1323: $msg.=&mt('Window to make a reservation will open [_1].',
1324: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1325: } elsif ($status eq 'NOTRESERVABLE') {
1326: $msg.=&mt('Not available to make a reservation.');
1.159 albertel 1327: }
1328: $result.=$msg.'<br />';
1329: } elsif ($target eq 'tex') {
1.332 albertel 1330: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1331: : '\begin{minipage}{\textwidth}';
1.443 foxr 1332: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1333: $startminipage.'\vskip 0 mm';
1.159 albertel 1334: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1335: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1336: } else {
1.211 albertel 1337: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1338: }
1339: }
1.324 albertel 1340: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1341: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1342: $style);
1.324 albertel 1343: if ($target eq 'web') {
1.375 albertel 1344: $result .=
1345: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1346: } elsif ($target eq 'grade') {
1347: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1348: 'problem');
1349: }
1.159 albertel 1350: } elsif ($target eq 'web') {
1.508 raeburn 1351: if ($status eq 'CAN_ANSWER') {
1352: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1353: if ($slot_name ne '') {
1354: my $checked_in =
1355: $Apache::lonhomework::history{'resource.0.checkedin'};
1356: if ($checked_in eq '') {
1357: # unproctored slot access, self checkin
1358: &Apache::bridgetask::check_in('problem',undef,undef,
1359: $slot_name);
1360: $checked_in =
1361: $Apache::lonhomework::results{"resource.0.checkedin"};
1362: }
1363: if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1364: if ($slot->{'starttime'} < time()) {
1365: if (!$resource_due) {
1366: $resource_due = $slot->{'endtime'};
1367: } elsif ($slot->{'endtime'} < $resource_due) {
1368: $resource_due = $slot->{'endtime'};
1369: }
1370: }
1371: }
1372: }
1373: if ($resource_due) {
1374: my $time_left = $resource_due - time();
1375: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1376: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1377: }
1378: }
1379: }
1.368 albertel 1380: $result.="\n $form_tag_start \t".
1.227 albertel 1381: '<input type="hidden" name="submitted" value="yes" />';
1382: # create a page header and exit
1.284 albertel 1383: if ($env{'request.state'} eq "construct") {
1384: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1385: if ($Apache::lonhomework::type eq 'practice') {
1386: $result.= '<input type="submit" name="resetdata" '.
1387: 'value="'.&mt('New Problem Variation').'" />'.
1388: &practice_problem_header().'<hr />';
1389: }
1.227 albertel 1390: }
1391: # if we are viewing someone else preserve that info
1.284 albertel 1392: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1393: foreach my $field ('symb','courseid','domain','username') {
1394: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1395: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1396: }
1.479 raeburn 1397: foreach my $field ('trial','questiontype') {
1398: if ($env{"form.grade_$field"} ne '') {
1399: $result .= '<input type="hidden" name="grade_'.$field.
1400: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1401: }
1402: }
1.159 albertel 1403: }
1.490 raeburn 1404: if ($env{'form.grade_imsexport'}) {
1405: $result = '';
1406: }
1.159 albertel 1407: } elsif ($target eq 'tex') {
1.319 foxr 1408: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 1409: $result .= &select_metadata_hyphenation();
1410:
1.319 foxr 1411:
1.99 sakharuk 1412: }
1.159 albertel 1413: } elsif ($target eq 'edit') {
1.343 albertel 1414: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1415: $Apache::lonxml::warnings_error_header=
1416: &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 1417: my $temp=&Apache::edit::insertlist($target,$token);
1418: $result.=$temp;
1419: } elsif ($target eq 'modified') {
1420: $result=$token->[4];
1421: } else {
1422: # page_start returned a starting result, delete it if we don't need it
1423: $result = '';
1.99 sakharuk 1424: }
1.159 albertel 1425: return $result;
1.9 albertel 1426: }
1427:
1428: sub end_problem {
1.159 albertel 1429: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1430: my $result;
1.310 foxr 1431:
1.321 albertel 1432: if (!$Apache::lonxml::metamode) {
1433: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1434: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1435: }
1.319 foxr 1436:
1437: if ($target eq 'tex') {
1.321 albertel 1438: # Figure out the front matter and replace the
1439: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1440: # this in end_problem because whether or not we display due
1441: # dates depends on whether due dates have already been
1442: # displayed in the problem parts.
1443:
1.319 foxr 1444: my $frontmatter = '';
1445: my $startminipage = '';
1446: if (not $env{'form.problem_split'}=~/yes/) {
1447: $startminipage = '\begin{minipage}{\textwidth}';
1448: }
1449: my $id = $Apache::inputtags::part;
1450: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1451: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1452: my @packages = split /,/,$packages;
1453: my $allow_print_points = 0;
1454: foreach my $partial_key (@packages) {
1455: if ($partial_key=~m/^part_0$/) {
1456: $allow_print_points=1;
1457: }
1458: }
1459: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1460: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1461: if (lc($env{'course.'.$env{'request.course.id'}.
1462: '.disableexampointprint'}) eq 'yes') {
1463: $allow_print_points=0;
1464: }
1465: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1466: 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 1467: &clear_required_languages();
1.319 foxr 1468: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1469: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1470:
1471: # Figure out what the due date is and if we need to print
1472: # it in the problem header. We have been logging the
1473: # last due date written to file.
1474:
1475: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1476: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1477: my $duedate_text = &mt('Due date: [_1]'
1478: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1479: my $temp_file;
1480: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1481:
1482: # Figure out what the last printed due date is or set it
1483: # to the epoch if no duedates have been printed.
1484:
1485: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1486: if (-e $filename) {
1487: $temp_file = Apache::File->new($filename);
1488: my @due_file = <$temp_file>;
1489: $due_file_content = $due_file[$#due_file];
1490: chomp $due_file_content;
1491: }
1492:
1493: # We display the due date iff it is not the same as the last
1494: # duedate in problem header ($due_file_content), and
1495: # none of our parts displayed a duedate.
1496: #
1497: my $parts_with_displayduedate;
1498: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1499: $parts_with_displayduedate =
1500: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1501: } else {
1502: $parts_with_displayduedate = 0;
1503: }
1504: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1505: $temp_file = Apache::File->new('>'.$filename);
1506: print $temp_file "$duetime\n";
1507: if (not $env{'request.symb'} =~ m/\.page_/) {
1508: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1509: $frontmatter .= $begin_doc.
1.448 bisitz 1510: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1511: } else {
1512: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1513: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1514: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1515: }
1.319 foxr 1516: }
1517: } else {
1.448 bisitz 1518: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1519: }
1520: } else {
1521: if (not $env{'request.symb'} =~ m/\.page_/) {
1522: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1523: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1524: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1525: }
1.319 foxr 1526: } else {
1.381 albertel 1527: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1528: }
1529: }
1530: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1531: }
1532:
1.159 albertel 1533: my $status=$Apache::inputtags::status['-1'];
1534: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1535: $target eq 'tex') {
1.249 albertel 1536: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1537: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1538: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1539: &Apache::inputtags::grade;
1.324 albertel 1540: } elsif ($status eq 'NEEDS_CHECKIN') {
1541: # no need to grade, and don't want to hide data
1.249 albertel 1542: } else {
1543: # move any submission data to .hidden
1544: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1545: }
1.159 albertel 1546: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1547: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1548: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1549: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1550: # if part is zero, no <part>s existed, so we need show the current
1551: # grading status
1552: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1553: $result.= $gradestatus;
1554: }
1555: if (
1.284 albertel 1556: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1557: ($target eq 'answer') || ($target eq 'tex')
1558: ) {
1.490 raeburn 1559: if (($target ne 'tex') &&
1560: ($env{'form.answer_output_mode'} ne 'tex') &&
1561: (!$env{'form.grade_imsexport'})) {
1.254 www 1562: $result.="</form>";
1.159 albertel 1563: }
1564: if ($target eq 'web') {
1.507 raeburn 1565: #
1566: # Closing </body></html> not added by end_page().
1567: # Added separately at end of this routine, after added
1568: # <script></script> so document will be valid xhtml.
1569: #
1570: $result.= &Apache::loncommon::end_page({'discussion' => 1,
1571: 'notbody' => 1});
1.159 albertel 1572: } elsif ($target eq 'tex') {
1.178 sakharuk 1573: my $endminipage = '';
1.284 albertel 1574: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1575: $endminipage = '\end{minipage}';
1576: }
1.284 albertel 1577: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1578: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1579: } else {
1.262 sakharuk 1580: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1581: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1582: $result .= $endminipage.'\end{document} ';
1583: } else {
1.382 albertel 1584: $result .= $endminipage;
1.262 sakharuk 1585: }
1.159 albertel 1586: }
1587: }
1588: }
1.476 www 1589: if ($target eq 'web') {
1590: $result.=&Apache::functionplotresponse::init_script();
1591: }
1.159 albertel 1592: if ($target eq 'grade') {
1593: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1594: &finalize_storage();
1595: }
1.284 albertel 1596: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1597: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1598: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1599: # normally we get it from above, but in CSTR
1.172 albertel 1600: # we always show answer mode too.
1.159 albertel 1601: }
1602: } elsif ($target eq 'meta') {
1603: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1604: @Apache::inputtags::response=();
1.159 albertel 1605: $result=&Apache::response::mandatory_part_meta;
1606: }
1.215 albertel 1607: $result.=&Apache::response::meta_part_order();
1.258 albertel 1608: $result.=&Apache::response::meta_response_order();
1.159 albertel 1609: } elsif ($target eq 'edit') {
1610: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1611: $result .= &problem_edit_footer();
1.320 albertel 1612: } elsif ($target eq 'modified') {
1613: $result .= $token->[2];
1.159 albertel 1614: }
1.155 albertel 1615:
1.284 albertel 1616: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1617: &Apache::inputtags::check_for_duplicate_ids();
1618: }
1.204 albertel 1619:
1620: &reset_problem_globals('problem');
1.159 albertel 1621:
1.502 foxr 1622: #
1623: # This shouild be just above the return so that the
1624: # time put in the javascript is as late as possible in the
1625: # computation:
1626: #
1627: if ($target eq 'web') {
1628: $result .= &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 1629: #
1630: # Closing tags delayed so any <script></script> tags
1631: # not in head can appear inside body, for valid xhtml.
1632: #
1633: $result .= "</body>\n</html>";
1.502 foxr 1634: }
1.159 albertel 1635: return $result;
1.48 albertel 1636: }
1637:
1.108 albertel 1638:
1.48 albertel 1639: sub start_library {
1.159 albertel 1640: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1641: my ($result,$form_tag_start);
1.371 albertel 1642: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1643: &init_problem_globals('library');
1644: $Apache::lonhomework::type='problem';
1645: }
1.159 albertel 1646: if ($target eq 'edit') {
1.343 albertel 1647: ($result,$form_tag_start)=
1648: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1649: 'Edit');
1650: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1651: my $temp=&Apache::edit::insertlist($target,$token);
1652: $result.=$temp;
1653: } elsif ($target eq 'modified') {
1654: $result=$token->[4];
1.340 albertel 1655: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1656: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1657: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1658: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1659: ($result,$form_tag_start)=
1660: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1661: $name);
1.479 raeburn 1662: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 1663: $result.=" \n $form_tag_start".
1.159 albertel 1664: '<input type="hidden" name="submitted" value="yes" />';
1665: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1666: if ($Apache::lonhomework::type eq 'practice') {
1667: $result.= '<input type="submit" name="resetdata" '.
1668: 'value="'.&mt('New Problem Variation').'" />'.
1669: &practice_problem_header().'<hr />';
1670: }
1.159 albertel 1671: }
1672: return $result;
1.48 albertel 1673: }
1674:
1675: sub end_library {
1.159 albertel 1676: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1677: my $result='';
1678: if ($target eq 'edit') {
1679: $result=&problem_edit_footer();
1.371 albertel 1680: } elsif ($target eq 'web'
1681: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1682: && $env{'request.state'} eq "construct") {
1.349 albertel 1683: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1684: }
1.371 albertel 1685: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1686: &reset_problem_globals('library');
1687: }
1.159 albertel 1688: return $result;
1.197 www 1689: }
1690:
1691: sub start_definetag {
1.326 albertel 1692: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1693:
1694: my $result;
1695:
1696: my $name = $token->[2]->{'name'};
1.326 albertel 1697: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1698: if ($target eq 'web') {
1699: if ($name=~/^\//) {
1700: $result=
1701: '<br /><table class="LC_sty_end"><tr><th>'.
1702: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1703: } else {
1704: $result=
1705: '<br /><table class="LC_sty_begin"><tr><th>'.
1706: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1707: }
1708: $skip = &HTML::Entities::encode($skip, '<>&"');
1709: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1710: }
1711: return $result;
1712: }
1713:
1714: sub end_definetag {
1715: return '';
1.1 albertel 1716: }
1717:
1718: sub start_block {
1.201 albertel 1719: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1720:
1721: my $result;
1.1 albertel 1722:
1.339 albertel 1723: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1724: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1725: my $code = $token->[2]->{'condition'};
1.385 albertel 1726: if (defined($code) && $code ne '') {
1.137 albertel 1727: if (!$Apache::lonxml::default_homework_loaded) {
1728: &Apache::lonxml::default_homework_load($safeeval);
1729: }
1.131 albertel 1730: $result = &Apache::run::run($code,$safeeval);
1731: &Apache::lonxml::debug("block :$code: returned :$result:");
1732: } else {
1733: $result='1';
1734: }
1735: if ( ! $result ) {
1.201 albertel 1736: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1737: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1738: }
1739: $result='';
1740: } elsif ($target eq 'edit') {
1741: $result .=&Apache::edit::tag_start($target,$token);
1742: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1743: $token,40);
1744: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1745: } elsif ($target eq 'modified') {
1746: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1747: $safeeval,'condition');
1748: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1749: }
1.131 albertel 1750: return $result;
1.1 albertel 1751: }
1752:
1753: sub end_block {
1.167 www 1754: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1755: my $result;
1756: if ($target eq "edit") {
1757: $result.= &Apache::edit::tag_end($target,$token,'');
1758: }
1759: return $result;
1760: }
1.500 foxr 1761: #
1762: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
1763: # ...
1764: # </languageblock>
1765: #
1766: # This declares the intent to provide content that can be rendered in the
1767: # set of languages in the include specificatino but not in the exclude
1768: # specification. If a currently preferred language is in the include list
1769: # the content in the <languageblock>...</languageblock> is rendered
1770: # If the currently preferred language is in the exclude list,
1771: # the content in the <languageblock>..></languageblock is not rendered.
1772: #
1773: # Pathalogical case handling:
1774: # - Include specified, without the preferred language but exclude specified
1775: # also without the preferred langauge results in rendering the block.
1776: # - Exclude specified without include and excluden not containing a
1777: # preferred language renders the block.
1778: # - Include and exclude both specifying the preferred language does not
1779: # render the block.
1780: # - If neither include/exclude is specified, the block gets rendered.
1781: #
1782: # This tag has no effect when target is in {edit, modified}
1783: #
1.167 www 1784: sub start_languageblock {
1.201 albertel 1785: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1786:
1.500 foxr 1787: my $result = '';
1.167 www 1788:
1.339 albertel 1789: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1790: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1791: my $include = $token->[2]->{'include'};
1792: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1793: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 1794:
1795: # This should not even happen, since we should at least have the server language
1796:
1797: if (!$preferred_languages[0]) {
1798: $preferred_languages[0]='en';
1799: }
1800:
1801: # Now loop over all languages in order of preference
1802:
1803: my $render;
1.398 www 1804: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 1805:
1806: # If neither include/nor exlude is present the block is going
1807: # to get rendered.
1808:
1.399 www 1809: my $found=0;
1.500 foxr 1810: $render=1;
1811:
1812: # If include is specified, don't render the block
1813: # unless the preferred language is included in the set.
1814:
1.398 www 1815: if ($include) {
1.500 foxr 1816: $render=0;
1.398 www 1817: foreach my $included_language (split(/\,/,$include)) {
1818: if ($included_language eq $preferred_language) {
1.500 foxr 1819: $render=1;
1.399 www 1820: $found=1;
1.500 foxr 1821: last; # Only need to find the first.
1.398 www 1822: }
1823: }
1824: }
1.500 foxr 1825: # Do we have an exclude argument?
1826: # If so, and one of the languages matches a preferred language
1827: # inhibit rendering the block. Note that in the pathalogical case the
1828: # author has specified a preferred language in both the include and exclude
1829: # attribte exclude is preferred.
1830:
1.398 www 1831: if ($exclude) {
1.500 foxr 1832: $render=1;
1.398 www 1833: foreach my $excluded_language (split(/\,/,$exclude)) {
1834: if ($excluded_language eq $preferred_language) {
1.500 foxr 1835: $render=0;
1.399 www 1836: $found=1;
1.500 foxr 1837: last; # Only need to find the first.
1.398 www 1838: }
1839: }
1840: }
1.500 foxr 1841: if ($found) {
1842: last; # Done on any match of include or exclude.
1843: }
1.398 www 1844: }
1.500 foxr 1845: # If $render not true skip the entire block until </languageblock>
1846: #
1847:
1848: if ( ! $render ) {
1.201 albertel 1849: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1850: $style);
1851: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1852: }
1.500 foxr 1853: # If $render is true, we've not skipped the contents of the <languageglock>
1854: # and the normal loncapa processing flow will render it as a matter of course.
1855:
1.167 www 1856: } elsif ($target eq 'edit') {
1857: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1858: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1859: $token,40);
1.211 albertel 1860: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1861: $token,40);
1862: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1863: } elsif ($target eq 'modified') {
1864: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1865: $safeeval,'include',
1866: 'exclude');
1.167 www 1867: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1868: }
1869: return $result;
1870: }
1871:
1872: sub end_languageblock {
1.170 www 1873: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1874: my $result;
1.201 albertel 1875: if ($target eq "edit") {
1.170 www 1876: $result.= &Apache::edit::tag_end($target,$token,'');
1877: }
1878: return $result;
1879: }
1.500 foxr 1880: # languagblock specific tags:
1881: {
1882: # For chunks of a resource that has translations, this hash contains
1883: # the translations available indexed by language name.
1884: #
1885:
1886: my %available_texts;
1.170 www 1887:
1.500 foxr 1888: # <translated> starts a block of a resource that has multiple translations.
1889: # See the <lang> tag as well.
1890: # When </translated> is encountered if there is a translation for the
1891: # currently preferred language, that is rendered inthe web/tex/webgrade
1892: # targets. Otherwise, the default text is rendered.
1893: #
1894: # Note that <lang> is only registered for the duration of the
1895: # <translated>...</translated> block
1896: #
1897: # Pathalogical case handling:
1898: # - If there is no <lang> that specifies a 'default' and there is no
1899: # translation that matches a preferred language, nothing is rendered.
1900: # - Nested <translated>...</translated> might be linguistically supported by
1901: # XML due to the stack nature of tag registration(?) however the rendered
1902: # output will be incorrect because there is only one %available_texts
1903: # has and end_translated clears it.
1904: # - Material outside of a <lang>...</lang> block within the
1905: # <translated>...<translated> block won't render either e.g.:
1906: # <translated>
1907: # The following will be in your preferred langauge:
1908: # <lang which='en'>
1909: # This section in english
1910: # </lang>
1911: # <lang which='sgeiso'>
1912: # Hier es ist auf Deutsch.
1913: # </lang>
1914: # <lang which='sfriso'>
1915: # En Francais
1916: # </lang>
1917: # </translated>
1918: #
1919: # The introductory text prior to the first <lang> tag is not rendered.
1920: #
1.397 albertel 1921: sub start_translated {
1922: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1923: &Apache::lonxml::register('Apache::structuretags',('lang'));
1924: undef(%available_texts);
1925: }
1926:
1927: sub end_translated {
1928: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1929: my $result;
1930: #show the translation on viewable targets
1931: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1932: # or non-viewable targets, if it's embedded in something that
1933: # wants the output
1934: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1935: && &Apache::lonxml::in_redirection() ) ) {
1936: my @possibilities = keys(%available_texts);
1937: my $which =
1938: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 1939: if ($target eq 'tex') {
1940: $result = &select_hyphenation($which);
1941: }
1942: $result .= $available_texts{$which};
1943: if ($target eq 'tex') {
1944: $result .= &select_metadata_hyphenation(); # Restore original language.
1945: }
1.397 albertel 1946: }
1947: undef(%available_texts);
1948: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1949: return $result;
1950: }
1951:
1.500 foxr 1952: # <lang [which='language-name'] [other='lang1,lang2...']>
1953: # Specifies that the block contained within it is a translation
1954: # for a specific language specified by the 'which' attribute. The
1955: # 'other' attribute can be used by itself or in conjunction with
1956: # which to specify this tag _may_ be used as a translation for some
1957: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
1958: # specifying that the block provides a translation for US (primary)
1959: # Canadian, Australian and UK Englush.
1960: #
1961: # Comment: this seems a bit silly why not just support a list of languages
1962: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
1963: #
1964: # Effect:
1965: # The material within the <lang>..</lang> block is stored in the
1966: # specified set of $available_texts hash entries, the appropriate one
1967: # is selected at </translated> time.
1968: #
1969: # Pathalogical case handling:
1970: # If a language occurs multiple times within a <translated> block,
1971: # only the last one is rendered e.g.:
1972: #
1973: # <translated>
1974: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
1975: # Red green color blindness is quite common affecting about 7.8% of
1976: # the male population, but onloy about .65% of the female population.
1977: # </lang>
1978: # Red green colour blindness is quite common affecting about 7.8% of
1979: # the male population, but onloy about .65% of the female population.
1980: # <lang which='seniso', other='senisoCA,senisoAU'>
1981: # </translated>
1982: #
1983: # renders the correct spelling of color (colour) for people who have specified
1984: # a preferred language that is one of the British Commonwealth languages
1985: # even though those are also listed as valid selections for the US english
1986: # <lang> block.
1987: #
1.397 albertel 1988: sub start_lang {
1989: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1990: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1991: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1992: &Apache::lonxml::startredirection();
1993: }
1994: return '';
1995: }
1996:
1997: sub end_lang {
1998: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1999: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2000: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2001: my $result = &Apache::lonxml::endredirection();
2002: my $which = &Apache::lonxml::get_param('which',$parstack,
2003: $safeeval);
1.431 raeburn 2004: if ($which=~/\w/) {
2005: $available_texts{$which} = $result;
2006: }
2007: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
2008: $safeeval);
2009: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
2010: if ($language=~/\w/) {
2011: $available_texts{$language} = $result;
2012: }
1.427 bisitz 2013: }
2014:
1.397 albertel 2015: }
2016: return '';
2017: }
1.500 foxr 2018: } # end langauge block specific tags.
2019:
1.397 albertel 2020:
1.170 www 2021: sub start_instructorcomment {
1.201 albertel 2022: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 2023:
2024: my $result;
2025:
1.339 albertel 2026: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2027: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 2028: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 2029: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 2030: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
2031: $parser,$style);
1.170 www 2032: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2033: }
2034: $result='';
2035: } elsif ($target eq 'edit') {
2036: $result .=&Apache::edit::tag_start($target,$token);
2037: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2038: }
2039: return $result;
2040: }
2041:
2042: sub end_instructorcomment {
1.159 albertel 2043: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2044: my $result;
2045: if ($target eq "edit") {
2046: $result.= &Apache::edit::tag_end($target,$token,'');
2047: }
2048: return $result;
1.4 tsai 2049: }
2050:
2051: sub start_while {
1.326 albertel 2052: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2053:
1.160 albertel 2054: my $result;
1.339 albertel 2055: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2056: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2057: my $code = $token->[2]->{'condition'};
1.4 tsai 2058:
1.160 albertel 2059: push( @Apache::structuretags::whileconds, $code);
2060: if (!$Apache::lonxml::default_homework_loaded) {
2061: &Apache::lonxml::default_homework_load($safeeval);
2062: }
2063: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2064: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2065: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2066: push( @Apache::structuretags::whileline, $token->[5]);
2067: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2068: if ( $result ) {
2069: &Apache::lonxml::newparser($parser,\$bodytext);
2070: }
2071: } elsif ($target eq 'edit') {
2072: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2073: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2074: $token,40);
2075: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2076: } elsif ($target eq 'modified') {
2077: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2078: $safeeval,'condition');
2079: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2080: }
1.160 albertel 2081: return $result;
1.4 tsai 2082: }
2083:
2084: sub end_while {
1.159 albertel 2085: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2086: my $result;
2087:
1.339 albertel 2088: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2089: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2090: my $code = pop(@Apache::structuretags::whileconds);
2091: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2092: my $line = pop(@Apache::structuretags::whileline);
2093: my $return = &Apache::run::run($code,$safeeval);
2094: my $starttime=time;
2095: my $error=0;
2096: while ($return) {
2097: if (time-$starttime >
2098: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2099: $return = 0; $error=1; next;
1.161 albertel 2100: }
2101: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2102: if ($target eq 'grade' || $target eq 'answer' ||
2103: $target eq 'analyze') {
2104: # grade/answer/analyze should produce no output but if we
2105: # are redirecting, the redirecter should know what to do
2106: # with the output
2107: if (!$Apache::lonxml::redirection) { undef($result); }
2108: }
1.161 albertel 2109: $return = &Apache::run::run($code,$safeeval);
2110: }
1.516 bisitz 2111: if ($error) {
2112: &Apache::lonxml::error(
2113: '<pre>'
2114: .&mt('Code ran too long. It ran for more than [_1] seconds.',
2115: $Apache::lonnet::perlvar{'lonScriptTimeout'})
2116: .&mt('This occurred while running <while> on line [_1].',
2117: $line)
2118: .'</pre>');
2119: }
1.160 albertel 2120: } elsif ($target eq "edit") {
2121: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2122: }
1.160 albertel 2123: return $result;
1.1 albertel 2124: }
1.6 tsai 2125:
1.160 albertel 2126: # <randomlist show="1">
1.6 tsai 2127: # <tag1>..</tag1>
2128: # <tag2>..</tag2>
2129: # <tag3>..</tag3>
1.160 albertel 2130: # ...
1.6 tsai 2131: # </randomlist>
2132: sub start_randomlist {
1.326 albertel 2133: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2134: my $result;
1.339 albertel 2135: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2136: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2137: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2138: my $b_parser= HTML::LCParser->new(\$body);
2139: $b_parser->xml_mode(1);
2140: $b_parser->marked_sections(1);
1.159 albertel 2141: my $b_tok;
2142: my @randomlist;
2143: my $list_item;
2144: while($b_tok = $b_parser->get_token() ) {
2145: if($b_tok->[0] eq 'S') { # start tag
2146: # get content of the tag until matching end tag
2147: # get all text upto the matching tag
2148: # and push the content into @randomlist
2149: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2150: $b_parser);
2151: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2152: push(@randomlist,$list_item);
2153: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2154: # $list_item</b>";
2155: }
2156: if($b_tok->[0] eq 'T') { # text
2157: # what to do with text in between tags?
2158: # print "<b>TEXT $b_tok->[1]</b><br />";
2159: }
2160: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2161: # print "<b>END-TAG $b_tok->[1]</b><br />";
2162: # }
2163: }
1.303 albertel 2164: if (@randomlist) {
2165: my @idx_arr = (0 .. $#randomlist);
2166: &Apache::structuretags::shuffle(\@idx_arr);
2167: my $bodytext = '';
2168: my $show=$#randomlist;
2169: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2170: $showarg--;
2171: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2172: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2173: my @currlist;
2174: my $part = $Apache::inputtags::part;
2175: if ($part ne '') {
2176: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2177: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2178: if (!(grep(/^\Q$part\E$/,@currlist))) {
2179: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2180: }
2181: } else {
2182: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2183: }
2184: }
2185: }
1.303 albertel 2186: for(0 .. $show) {
2187: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
2188: }
2189: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2190: }
2191: } elsif ($target eq 'edit' ) {
2192: $result .=&Apache::edit::tag_start($target,$token);
2193: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2194: $token,5);
2195: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2196: } elsif ($target eq 'modified' ) {
2197: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2198: $safeeval,'show');
2199: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2200: }
2201: return $result;
1.7 tsai 2202: }
2203:
2204: sub shuffle {
2205: my $a=shift;
2206: my $i;
1.303 albertel 2207: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 2208: &Apache::response::pushrandomnumber();
1.159 albertel 2209: for($i=@$a;--$i;) {
2210: my $j=int(&Math::Random::random_uniform() * ($i+1));
2211: next if $i == $j;
2212: @$a[$i,$j] = @$a[$j,$i];
2213: }
1.251 albertel 2214: &Apache::response::poprandomnumber();
1.7 tsai 2215: }
1.6 tsai 2216: }
2217:
2218: sub end_randomlist {
1.159 albertel 2219: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2220: my $result;
2221: if ($target eq 'edit' ) {
2222: $result=&Apache::edit::tag_end($target,$token,
2223: 'End Randomly Parsed Block');
2224: }
2225: return $result;
1.6 tsai 2226: }
2227:
1.283 albertel 2228: sub ordered_show_check {
2229: my $last_part=$Apache::inputtags::partlist[-2];
2230: my $in_order=
2231: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2232: my $in_order_show=1;
2233: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2234: $in_order_show=&Apache::response::check_status($last_part);
2235: }
2236: return $in_order_show;
2237: }
2238:
1.469 www 2239:
2240: sub start_startpartmarker {
2241: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2242: my $result='';
2243: if ($target eq 'edit') {
2244: $result=&Apache::edit::tag_start($target,$token);
2245: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2246: $result.=&Apache::edit::end_table();
2247:
2248: }
2249: return $result;
2250: }
2251:
2252: sub end_startpartmarker {
2253: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2254: my @result;
2255: if ($target eq 'edit') { $result[1]='no'; }
2256: return @result;
2257: }
2258:
2259: sub start_endpartmarker {
2260: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2261: my $result='';
2262: if ($target eq 'edit') {
2263: $result=&Apache::edit::tag_start($target,$token);
2264: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2265: $result.=&Apache::edit::end_table();
2266:
2267: }
2268: return $result;
2269: }
2270:
2271: sub end_endpartmarker {
2272: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2273: my @result;
2274: if ($target eq 'edit') { $result[1]='no'; }
2275: return @result;
2276: }
2277:
2278:
2279:
2280:
2281:
1.11 albertel 2282: sub start_part {
1.326 albertel 2283: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2284: if (!$Apache::lonxml::metamode) {
2285: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2286: # duedates.
2287: }
1.159 albertel 2288: my $result='';
1.386 albertel 2289: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2290: $Apache::inputtags::part=$id;
1.177 albertel 2291: push(@Apache::inputtags::partlist,$id);
2292: @Apache::inputtags::response=();
1.159 albertel 2293: @Apache::inputtags::previous=();
2294: @Apache::inputtags::previous_version=();
1.405 albertel 2295: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2296: &Apache::response::reset_params();
2297:
1.159 albertel 2298: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2299: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2300: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 2301: my $in_order_show=&ordered_show_check();
1.214 albertel 2302: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2303: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2304: &Apache::run::run($expression,$safeeval);
1.159 albertel 2305:
2306: if ($target eq 'meta') {
1.224 www 2307: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2308: return &Apache::response::mandatory_part_meta.
2309: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2310: } elsif ($target eq 'web' || $target eq 'grade' ||
2311: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2312: if ($hidden || !$in_order_show) {
1.326 albertel 2313: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2314: } else {
2315: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2316: push (@Apache::inputtags::status,$status);
2317: my $expression='$external::datestatus="'.$status.'";';
2318: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2319: &Apache::run::run($expression,$safeeval);
1.284 albertel 2320: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2321: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2322: }
1.216 albertel 2323: if (( $status eq 'CLOSED' ) ||
2324: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2325: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2326: ( $status eq 'BANNED') ||
2327: ( $status eq 'UNAVAILABLE') ||
2328: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2329: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2330: $style);
1.159 albertel 2331: if ( $target eq "web" ) {
1.211 albertel 2332: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2333: } elsif ( $target eq 'tex' ) {
1.284 albertel 2334: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2335: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2336: } else {
1.211 albertel 2337: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2338: }
1.159 albertel 2339: }
2340: } else {
2341: if ($target eq 'tex') {
1.284 albertel 2342: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2343: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2344: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2345: } else {
2346: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2347: }
1.195 sakharuk 2348: }
1.159 albertel 2349: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2350: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 2351: my @allkeys = split /,/,$allkeys;
2352: my $allow_print_points = 0;
2353: foreach my $partial_key (@allkeys) {
1.230 albertel 2354: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2355: if ($1 ne '0') {$allow_print_points=1;}
2356: }
2357: }
1.275 albertel 2358: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2359: if (defined($maxtries) && $maxtries < 0) {
2360: $allow_print_points=0;
2361: }
1.302 albertel 2362: if (lc($env{'course.'.$env{'request.course.id'}.
2363: '.disableexampointprint'}) eq 'yes') {
2364: $allow_print_points=0;
2365: }
1.463 foxr 2366: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2367: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2368:
2369: }
1.233 www 2370: } elsif ($target eq 'web') {
1.479 raeburn 2371: if ($status eq 'CAN_ANSWER') {
2372: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2373: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
2374: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
2375: my $num = scalar(@Apache::inputtags::partlist)-1;
2376: if ($probrandomize eq 'randomizetry') {
2377: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
2378: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2379: } else {
2380: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2381: if ($probrandtries ne $reqtries) {
2382: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2383: }
2384: }
2385: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
2386: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2387: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2388: }
2389: }
1.475 raeburn 2390: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2391: }
2392: }
2393: }
2394: } elsif ($target eq 'edit') {
2395: $result.=&Apache::edit::tag_start($target,$token);
2396: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2397: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2398: ' '.
2399: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2400: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2401: } elsif ($target eq 'modified') {
2402: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2403: $safeeval,'id','display');
1.159 albertel 2404: if ($constructtag) {
1.225 albertel 2405: #limiting ids to only letters numbers, and space
1.224 www 2406: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2407: $result = &Apache::edit::rebuild_tag($token);
2408: }
2409: }
2410: return $result;
1.11 albertel 2411: }
2412:
2413: sub end_part {
1.159 albertel 2414: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2415: &Apache::lonxml::debug("in end_part $target ");
2416: my $status=$Apache::inputtags::status['-1'];
2417: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2418: my $in_order_show=&ordered_show_check();
1.321 albertel 2419: my $result;
2420: if (!$Apache::lonxml::metamode) {
2421: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2422: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2423: }
1.312 albertel 2424: if ($target eq 'grade') {
1.249 albertel 2425: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2426: !$hidden && $in_order_show) {
1.311 foxr 2427: $result.=&Apache::inputtags::grade;
1.249 albertel 2428: } else {
2429: # move any submission data to .hidden
2430: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2431: }
1.283 albertel 2432: } elsif (($target eq 'web' || $target eq 'tex') &&
2433: !$hidden && $in_order_show) {
1.159 albertel 2434: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2435: $target);
1.490 raeburn 2436: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2437: ($env{'form.grade_imsexport'})) {
1.212 albertel 2438: $gradestatus='';
2439: }
1.311 foxr 2440: $result.=$gradestatus;
1.265 sakharuk 2441: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2442: } elsif ($target eq 'edit') {
1.311 foxr 2443: $result.=&Apache::edit::end_table();
1.322 albertel 2444: } elsif ($target eq 'modified') {
2445: $result .= $token->[2];
1.159 albertel 2446: }
2447: pop @Apache::inputtags::status;
2448: $Apache::inputtags::part='';
1.295 albertel 2449: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2450: return $result;
1.11 albertel 2451: }
1.1 albertel 2452:
1.25 albertel 2453: sub start_preduedate {
1.326 albertel 2454: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2455: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2456: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2457: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2458: if (!$Apache::lonhomework::scantronmode &&
2459: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2460: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2461: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2462: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2463: }
1.24 albertel 2464: }
1.159 albertel 2465: return '';
1.24 albertel 2466: }
2467:
1.25 albertel 2468: sub end_preduedate {
1.159 albertel 2469: return '';
1.24 albertel 2470: }
2471:
1.369 foxr 2472: # In all the modes where <postanswerdate> text is
2473: # displayable, all we do is eat up the text between the start/stop
2474: # tags if the conditions are not right to display it.
1.25 albertel 2475: sub start_postanswerdate {
1.326 albertel 2476: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2477: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2478: &Apache::lonnet::allowed('pav',
2479: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2480: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2481: $target eq 'tex' ) {
1.300 albertel 2482: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2483: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2484: (($target eq 'tex') && !$pav)) {
1.326 albertel 2485: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2486: }
2487: }
2488: return '';
1.24 albertel 2489: }
2490:
1.25 albertel 2491: sub end_postanswerdate {
1.159 albertel 2492: return '';
1.24 albertel 2493: }
2494:
1.25 albertel 2495: sub start_notsolved {
1.326 albertel 2496: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2497: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2498: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2499: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2500: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2501: if ($gradestatus =~ /^correct/ &&
2502: &Apache::response::show_answer()) {
1.159 albertel 2503: &Apache::lonxml::debug("skipping");
1.326 albertel 2504: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2505: }
1.24 albertel 2506: }
1.159 albertel 2507: return '';
1.24 albertel 2508: }
2509:
1.25 albertel 2510: sub end_notsolved {
1.159 albertel 2511: return '';
1.24 albertel 2512: }
2513:
2514: sub start_solved {
1.326 albertel 2515: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2516: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2517: $target eq 'tex') {
2518: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2519: if ($gradestatus !~ /^correct/ ||
2520: !&Apache::response::show_answer()) {
1.326 albertel 2521: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2522: }
1.24 albertel 2523: }
1.159 albertel 2524: return '';
1.24 albertel 2525: }
2526:
2527: sub end_solved {
1.248 albertel 2528: return '';
2529: }
2530:
2531: sub start_problemtype {
1.326 albertel 2532: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2533: my $result;
1.339 albertel 2534: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2535: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2536: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2537: if (!defined($mode)) { $mode='show'; }
2538: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2539: my $found=0;
2540: foreach my $type (split(',',$for)) {
2541: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2542: }
2543: if ($mode eq 'show' && !$found) {
1.326 albertel 2544: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2545: }
2546: if ($mode eq 'hide' && $found) {
1.326 albertel 2547: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2548: }
2549: } elsif ($target eq 'edit') {
2550: $result .=&Apache::edit::tag_start($target,$token);
2551: $result.=&Apache::edit::select_arg('Mode:','mode',
2552: [['show','Show'],
2553: ['hide','Hide']]
2554: ,$token);
2555: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.511 bisitz 2556: [ ['exam','Bubblesheet Exam/Quiz Problem'],
1.248 albertel 2557: ['survey','Survey'],
1.465 raeburn 2558: ['surveycred','Survey (with credit)'],
2559: ['anonsurvey','Anonymous Survey'],
2560: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2561: ['problem','Homework Problem'],
1.479 raeburn 2562: ['practice','Practice Problem'],
2563: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2564: ,$token);
2565: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2566: } elsif ($target eq 'modified') {
2567: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2568: $safeeval,'mode','for');
2569: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2570: }
2571: return $result;
2572: }
2573:
2574: sub end_problemtype {
1.159 albertel 2575: return '';
1.24 albertel 2576: }
1.34 albertel 2577:
2578: sub start_startouttext {
1.159 albertel 2579: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2580: my @result=(''.'');
2581: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2582:
2583: my $nesting =
2584: &Apache::lonxml::set_state('outtext',
2585: &Apache::lonxml::get_state('outtext')+1);
2586: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2587: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2588: }
1.159 albertel 2589: return (@result);
1.34 albertel 2590: }
1.159 albertel 2591:
1.34 albertel 2592: sub end_startouttext {
1.326 albertel 2593: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2594: my $result='';
2595: my $text='';
2596: if ($target eq 'edit') {
1.424 foxr 2597: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2598: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 2599: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 2600: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2601: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 2602: .'</span></td>'
1.515 golterma 2603: .'<td><span id="math_'.$areaid.'">'
1.474 raeburn 2604: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
1.512 bisitz 2605: .'</span></td>'
1.474 raeburn 2606: .'<td>'
2607: .&Apache::edit::insertlist($target,$token)
2608: .'</td>'
1.515 golterma 2609: .'<td class="LC_edit_problem_latexhelper">' .
1.474 raeburn 2610: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2611: &Apache::edit::end_row().
1.362 albertel 2612: &Apache::edit::start_spanning_row()."\n".
1.255 www 2613: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2614: }
2615: if ($target eq 'modified') {
1.219 albertel 2616: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2617: }
2618: if ($target eq 'tex') {
2619: $result .= '\noindent ';
2620: }
2621: return $result;
1.34 albertel 2622: }
1.159 albertel 2623:
1.34 albertel 2624: sub start_endouttext {
1.159 albertel 2625: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2626: my $result='';
2627: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2628: if ($target eq "modified") {
2629: $result='<endouttext />'.
1.377 albertel 2630: &Apache::edit::handle_insertafter('startouttext');
2631: }
1.404 albertel 2632:
2633: my $nesting =
2634: &Apache::lonxml::set_state('outtext',
2635: &Apache::lonxml::get_state('outtext')-1);
2636: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2637: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2638: &Apache::lonxml::set_state('outtext', 0);
2639: }
1.159 albertel 2640: return $result;
1.34 albertel 2641: }
1.159 albertel 2642:
1.34 albertel 2643: sub end_endouttext {
1.159 albertel 2644: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2645: my @result=('','');
2646: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2647: return (@result);
1.34 albertel 2648: }
1.159 albertel 2649:
1.45 albertel 2650: sub delete_startouttext {
1.326 albertel 2651: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2652: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2653: my $text=$$parser['-1']->get_text("/endouttext");
2654: my $ntoken=$$parser['-1']->get_token();
2655: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2656: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2657: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2658: # they did the last time round
2659: &Apache::lonxml::increasedepth($ntoken);
2660: &Apache::lonxml::decreasedepth($ntoken);
2661: return 1;
1.193 www 2662: }
2663:
2664: sub start_simpleeditbutton {
2665: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2666: my $result='';
1.284 albertel 2667: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2668: ($target eq 'web') &&
1.330 albertel 2669: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2670: my $url=$env{'request.noversionuri'};
1.193 www 2671: $url=~s/\?.*$//;
1.367 albertel 2672: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 2673: # Warning makes more sense and is more important on edit screen
1.442 bisitz 2674: # $result='<p class="LC_warning">'
2675: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2676: # .&Apache::loncommon::help_open_topic('Caching')
2677: # .'</p>';
1.486 www 2678: $result.=&Apache::loncommon::head_subbox(
2679: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 2680: .&Apache::lonhtmlcommon::add_item_funclist(
2681: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
2682: .&mt('Edit').'</a>')
1.486 www 2683: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 2684:
1.193 www 2685: }
2686: return $result;
2687: }
2688:
2689: sub end_simpleeditbutton {
2690: return '';
1.45 albertel 2691: }
1.34 albertel 2692:
1.428 raeburn 2693: sub practice_problem_header {
2694: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2695: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2696: '</span>';
2697: }
2698:
1.479 raeburn 2699: sub randomizetry_problem_header {
2700: my ($problemstatus,$reqtries) = @_;
2701: my ($header,$text);
2702: if ($reqtries > 1) {
2703: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
2704: if (($problemstatus eq 'no') ||
2705: ($problemstatus eq 'no_feedback_ever')) {
2706: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2707: } else {
2708: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2709: }
2710: } else {
2711: $header = &mt('New Problem Variation Each Try');
2712: if (($problemstatus eq 'no') ||
2713: ($problemstatus eq 'no_feedback_ever')) {
2714: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
2715:
2716: } else {
2717: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
2718: }
2719: }
2720: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
2721: '<span class="LC_info">'.$text.'</span><hr />';
2722: }
2723:
2724: sub randomizetry_part_header {
2725: my ($problemstatus,$reqtries,$num) = @_;
2726: my ($header,$text);
2727: if ($reqtries eq 'none') {
2728: $header = &mt('No Question Variation');
2729: $text = &mt('For this question there will no new variation after a try.');
2730: } elsif ($reqtries > 1) {
2731: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
2732: if (($problemstatus eq 'no') ||
2733: ($problemstatus eq 'no_feedback_ever')) {
2734: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2735: } else {
2736: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2737: }
2738: } else {
2739: $header = &mt('New Question Variation For Each Try');
2740: if (($problemstatus eq 'no') ||
2741: ($problemstatus eq 'no_feedback_ever')) {
2742: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
2743: } else {
2744: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
2745: }
2746: }
2747: my $output;
2748: if ($num > 1) {
2749: $output .= '<hr />';
2750: }
2751: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
2752: '<span class="LC_info">'.$text.'</span><br /><br />';
2753: return $output;
2754: }
2755:
1.1 albertel 2756: 1;
2757: __END__
1.435 jms 2758:
2759: =pod
2760:
2761: =back
2762:
2763: =cut
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