Annotation of loncom/homework/structuretags.pm, revision 1.521
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.521 ! raeburn 4: # $Id: structuretags.pm,v 1.520 2014/09/14 15:21:43 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"}) ;
1.520 raeburn 286: $( ".LC_status_"+buttonId ).hide();
1.521 ! raeburn 287: if (( $(this.form).id == "LC_page" ) && ($('input[name="all_submit"]').length )) {
1.520 raeburn 288: if (( "#"+buttonId+"_pressed" ).length) {
289: $( "#"+buttonId+"_pressed" ).val( "1" );
290: }
291: }
292: $(this.form).submit();
1.521 ! raeburn 293: $( ".LC_hwk_submit" ).prop( "disabled", true);
! 294: $( ".LC_textline" ).prop( "readonly", "readonly");
1.520 raeburn 295: event.preventDefault();
296: return true;
297: }
298: }
299: });
300: });
301:
1.521 ! raeburn 302:
1.483 raeburn 303: // ]]>
1.400 albertel 304: </script>
305: JS
306: }
307:
1.416 raeburn 308: sub setmode_javascript {
309: return <<"ENDSCRIPT";
310: <script type="text/javascript">
1.485 raeburn 311: // <![CDATA[
1.416 raeburn 312: function setmode(form,probmode) {
313: form.problemmode.value = probmode;
314: form.submit();
315: }
1.485 raeburn 316: // ]]>
1.416 raeburn 317: </script>
318: ENDSCRIPT
319: }
320:
1.48 albertel 321: sub page_start {
1.345 albertel 322: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
323: $extra_head)=@_;
1.159 albertel 324: my %found;
1.207 albertel 325: foreach my $taginside (@$tagstack) {
1.159 albertel 326: foreach my $taglookedfor ('html','body','form') {
327: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
328: }
329: }
330:
1.343 albertel 331: if ($target eq 'tex') {
332: return
333: &Apache::londefdef::start_html($target,$token,$tagstack,
334: $parstack,$parser,$safeeval);
335: }
336:
1.474 raeburn 337: $extra_head .= &homework_js().
338: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
339: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
340: my %textarea_args = (
341: dragmath => 'math',
342: );
343: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 344: }
1.478 raeburn 345: my $is_task = ($env{'request.uri'} =~ /\.task$/);
1.493 raeburn 346: my $needs_upload;
1.495 raeburn 347: my ($symb)= &Apache::lonnet::whichuser();
348: my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
1.478 raeburn 349: if ($is_task) {
1.495 raeburn 350: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
1.493 raeburn 351: } else {
352: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.uploadedfiletypes") ne '') {
1.495 raeburn 353: unless ($env{'request.state'} eq 'construct') {
354: my $navmap = Apache::lonnavmaps::navmap->new();
355: if (ref($navmap)) {
356: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 357: my $is_page;
358: if (ref($mapres)) {
359: $is_page = $mapres->is_page();
360: }
361: unless ($is_page) {
1.495 raeburn 362: $needs_upload = 1;
363: }
364: }
365: }
1.493 raeburn 366: } else {
367: unless ($env{'request.state'} eq 'construct') {
368: my $navmap = Apache::lonnavmaps::navmap->new();
369: if (ref($navmap)) {
1.495 raeburn 370: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 371: my $is_page;
372: if (ref($mapres)) {
373: $is_page = $mapres->is_page();
374: }
375: unless ($is_page) {
1.495 raeburn 376: my $res = $navmap->getBySymb($symb);
377: if (ref($res)) {
378: my $partlist = $res->parts();
379: if (ref($partlist) eq 'ARRAY') {
380: foreach my $part (@{$partlist}) {
381: my @types = $res->responseType($part);
382: my @ids = $res->responseIds($part);
383: for (my $i=0; $i < scalar(@ids); $i++) {
384: if ($types[$i] eq 'essay') {
385: my $partid = $part.'_'.$ids[$i];
386: if (&Apache::lonnet::EXT("resource.$partid.uploadedfiletypes") ne '') {
387: $needs_upload = 1;
388: last;
389: }
1.493 raeburn 390: }
391: }
392: }
1.495 raeburn 393: }
394: }
1.493 raeburn 395: }
396: }
397: }
398: }
1.495 raeburn 399: if ($needs_upload) {
400: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
401: }
1.478 raeburn 402: }
1.425 raeburn 403:
1.344 albertel 404: my %body_args;
405: if (defined($found{'html'})) {
406: $body_args{'skip_phases'}{'head'}=1;
407: } else {
1.343 albertel 408:
1.345 albertel 409: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 410:
1.379 albertel 411: $extra_head .= &Apache::londefdef::generate_css_links();
412:
1.384 albertel 413: if ($env{'request.state'} eq 'construct') {
1.343 albertel 414: $extra_head.=&Apache::edit::js_change_detection().
415: "<script type=\"text/javascript\">\n".
416: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
417: &Apache::loncommon::browser_and_searcher_javascript().
418: "\n</script>\n";
419: }
1.159 albertel 420: }
1.343 albertel 421:
1.446 bisitz 422: my $pageheader = '';
1.344 albertel 423: if (defined($found{'body'})) {
424: $body_args{'skip_phases'}{'body'}=1;
425: } elsif (!defined($found{'body'})
426: && $env{'request.state'} eq 'construct') {
1.343 albertel 427: if ($target eq 'web' || $target eq 'edit') {
1.513 raeburn 428: # Breadcrumbs for Authoring Space
1.450 bisitz 429: &Apache::lonhtmlcommon::clear_breadcrumbs();
430: &Apache::lonhtmlcommon::add_breadcrumb({
1.513 raeburn 431: 'text' => 'Authoring Space',
1.497 raeburn 432: 'href' => &Apache::loncommon::authorspace($env{'request.uri'}),
1.450 bisitz 433: });
1.460 droeschl 434: # breadcrumbs (and tools) will be created
435: # in start_page->bodytag->innerregister
436:
1.450 bisitz 437: # FIXME Where are we?
438: # &Apache::lonhtmlcommon::add_breadcrumb({
439: # 'text' => 'Problem Editing', # 'Problem Testing'
440: # 'href' => '',
441: # });
1.460 droeschl 442: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 443: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 444: }
1.272 albertel 445: } elsif (!defined($found{'body'})) {
1.343 albertel 446: my %add_entries;
1.159 albertel 447: my $background=&Apache::lonxml::get_param('background',$parstack,
448: $safeeval);
1.343 albertel 449: if ($background ne '' ) {
450: $add_entries{'background'} = $background;
451: }
1.344 albertel 452:
1.290 albertel 453: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
454: $safeeval);
1.446 bisitz 455: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 456:
1.446 bisitz 457: $body_args{'bgcolor'} = $bgcolor;
458: # $body_args{'no_title'} = 1;
459: $body_args{'force_register'} = 1;
460: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 461: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 462: $body_args{'only_body'} = 1;
1.518 raeburn 463: } elsif ($target eq 'web') {
464: $body_args{'print_suppress'} = 1;
1.446 bisitz 465: }
1.344 albertel 466: }
1.365 albertel 467: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 468: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
469: \%body_args);
1.446 bisitz 470: $page_start .= $pageheader;
1.462 raeburn 471: if (!defined($found{'body'})
472: && $env{'request.state'} ne 'construct'
473: && ($target eq 'web' || $target eq 'webgrade')) {
474:
475: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
476: if ($symb eq '' && !$publicuser) {
477: $page_start .= '<p class="LC_info">'
478: .&mt('Browsing resource, all submissions are temporary.')
479: .'</p>';
1.457 bisitz 480: }
1.344 albertel 481: }
482:
1.409 albertel 483: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 484: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 485: }
486: my $form_tag_start;
487: if (!defined($found{'form'})) {
1.337 albertel 488: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 489: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 490: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 491: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 492: $form_tag_start.=$uri.'" ';
493: if ($target eq 'edit') {
494: $form_tag_start.=&Apache::edit::form_change_detection();
495: }
1.493 raeburn 496: my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
497: my ($path,$multiresp) =
498: &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
1.495 raeburn 499: if (($is_task) || ($needs_upload)) {
500: $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
1.478 raeburn 501: }
1.368 albertel 502: $form_tag_start.='>'."\n";
1.355 albertel 503:
504: if ($symb =~ /\S/) {
505: $symb=
506: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
507: $form_tag_start.=
1.368 albertel 508: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 509: }
1.159 albertel 510: }
1.343 albertel 511: return ($page_start,$form_tag_start);
1.105 albertel 512: }
513:
1.141 matthew 514: #use Time::HiRes();
1.105 albertel 515: sub get_resource_name {
1.159 albertel 516: my ($parstack,$safeeval)=@_;
1.388 foxr 517: my $name;
1.204 albertel 518: if (defined($Apache::lonhomework::name)) {
1.388 foxr 519: $name = $Apache::lonhomework::name;
520: } else {
521: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 522: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 523: if ($name eq '') {
524: $name=&Apache::lonnet::EXT('resource.title');
525: if ($name eq 'con_lost') { $name = ''; }
526: }
527: if ($name!~/\S+/) {
528: $name=$env{'request.uri'};
529: $name=~s-.*/([^/]+)$-$1-;
530: }
531: # The name has had html tags escaped:
532:
533: $name=~s/</</gs;
534: $name=~s/>/>/gs;
535:
536: $Apache::lonhomework::name=$name;
1.204 albertel 537: }
1.159 albertel 538: return $name;
1.105 albertel 539: }
540:
541: sub setup_rndseed {
1.479 raeburn 542: my ($safeeval,$target)=@_;
1.367 albertel 543: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 544: my ($questiontype,$set_safespace,$rndseed);
545: if ($target eq 'analyze') {
546: $questiontype = $env{'form.grade_questiontype'};
547: }
548: unless (defined($questiontype)) {
549: $questiontype = $Apache::lonhomework::type;
550: }
1.333 albertel 551: if ($env{'request.state'} eq "construct"
552: || $symb eq ''
553: || $Apache::lonhomework::type eq 'practice'
554: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 555: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 556: ['rndseed']);
1.284 albertel 557: $rndseed=$env{'form.rndseed'};
1.159 albertel 558: if (!$rndseed) {
1.162 albertel 559: $rndseed=$Apache::lonhomework::history{'rndseed'};
560: if (!$rndseed) {
561: $rndseed=time;
562: }
1.284 albertel 563: $env{'form.rndseed'}=$rndseed;
1.162 albertel 564: }
1.479 raeburn 565: if (($env{'request.state'} eq "construct") &&
566: ($Apache::lonhomework::type eq 'randomizetry')) {
567: my $tries = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
568: if ($tries) {
569: $rndseed += $tries;
570: }
1.480 raeburn 571: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 572: }
1.374 albertel 573: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
574: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 575: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 576: srand(time);
577: $rndseed=int(rand(2100000000));
1.284 albertel 578: $env{'form.rndseed'}=$rndseed;
579: delete($env{'form.resetdata'});
580: delete($env{'form.newrandomization'});
1.159 albertel 581: }
1.488 www 582: $rndseed=~s/\,/\:/g;
583: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 584: if (defined($rndseed)) {
585: my ($c1,$c2)=split(/\:/,$rndseed);
586: unless ($c2) { $c2=0; }
587: unless (($c1==int($c1)) && ($c2==int($c2))) {
588: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
589: }
1.187 albertel 590: }
1.247 albertel 591: if ($Apache::lonhomework::history{'resource.CODE'}) {
592: $rndseed=&Apache::lonnet::rndseed();
593: }
1.479 raeburn 594: $set_safespace = 1;
595: } elsif ($questiontype eq 'randomizetry') {
596: if ($target eq 'analyze') {
597: if (defined($env{'form.grade_rndseed'})) {
598: $rndseed = $env{'form.grade_rndseed'};
599: }
600: }
601: unless (($target eq 'analyze') && (defined($rndseed))) {
602: $rndseed=&Apache::lonnet::rndseed();
603: my $curr_try = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
604: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
605: $curr_try ++;
606: }
607: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
608: $rndseed = $1;
609: }
610: if ($curr_try) {
611: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
612: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
613: my $inc = int(($curr_try-1)/$reqtries);
614: $rndseed += $inc;
615: } else {
616: $rndseed += $curr_try;
617: }
618: }
619: }
620: $set_safespace = 1;
621: }
622: if ($set_safespace) {
623: if ($safeeval) {
624: &Apache::lonxml::debug("Setting rndseed to $rndseed");
625: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
626: }
627: }
628: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
629: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 630: }
631: return $rndseed;
1.105 albertel 632: }
633:
1.268 albertel 634: sub remember_problem_state {
635: return '
1.284 albertel 636: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
637: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
638: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 639: }
640:
1.487 www 641: sub problem_edit_action_button {
642: my ($name,$action,$accesskey,$text,$flag)=@_;
643: my $actionscript="setmode(this.form,'$action')";
644: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
645: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
646: }
647:
1.423 www 648: sub problem_edit_buttons {
1.487 www 649: my ($mode)=@_;
650: # Buttons that do not save
651: my $result='<div class="LC_edit_problem_discards">'.
652: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
653: if ($mode eq 'editxml') {
654: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
655: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
656: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
657: } else {
658: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
659: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
660: }
661: $result.="\n</div>";
662: # Buttons that save
663: $result.='<div class="LC_edit_problem_saves">';
664: if ($mode eq 'editxml') {
665: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
666: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
667: } else {
668: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
669: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
670: }
671: $result.="\n</div>\n";
672: return $result;
1.423 www 673: }
674:
675: sub problem_edit_header {
1.487 www 676: return '<input type="hidden" name="submitted" value="edit" />'.
677: &remember_problem_state('edit').'
1.423 www 678: <div class="LC_edit_problem_header">
679: <div class="LC_edit_problem_header_title">
680: '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
681: </div>'.
1.487 www 682: '<input type="hidden" name="problemmode" value="saveedit" />'.
1.423 www 683: &problem_edit_buttons().'
1.459 bisitz 684: <hr style="clear:both;" />
1.409 albertel 685: '.&Apache::lonxml::message_location().'
1.408 albertel 686: </div>
687: '.
1.515 golterma 688: '<table id="LC_edit_problem_colorful" border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
1.105 albertel 689: }
690:
691: sub problem_edit_footer {
1.412 albertel 692: return '</td></tr></table><br />
693: <div class="LC_edit_problem_footer">
1.453 bisitz 694: <hr />'.
1.423 www 695: &problem_edit_buttons().'
1.459 bisitz 696: <hr style="clear:both;" />
1.412 albertel 697: </div>
698: '.
1.342 albertel 699: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 700: }
701:
1.235 albertel 702: sub option {
703: my ($value,$name) = @_;
704: my $result ="<option value='".$value."' ";
1.284 albertel 705: if ($env{'form.'.$name} eq $value) {
1.235 albertel 706: $result.=" selected='on' ";
707: }
708: $result.='>';
709: return $result;
710: }
711:
1.105 albertel 712: sub problem_web_to_edit_header {
1.159 albertel 713: my ($rndseed)=@_;
1.406 albertel 714: my $result .= '<div class="LC_edit_problem_header">';
715:
716: if (!$Apache::lonhomework::parsing_a_task) {
717: $result .=
718: '<div class="LC_edit_problem_header_title">'.
719: &mt('Problem Testing').
720: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
721: '</div>';
722: } else {
723: $result .=
724: '<div class="LC_edit_problem_header_title">'.
725: &mt('Task Testing').
726: '</div>';
727: }
728:
1.315 albertel 729: my $show_all_foils_text =
730: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 731: &mt('Show All Instances')
732: : &mt('Show All Foils');
1.315 albertel 733:
1.452 bisitz 734: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
735: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 736: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 737: $show_all.= ' /> '.$show_all_foils_text
738: .'</label></span>';
1.406 albertel 739:
740:
1.384 albertel 741:
1.406 albertel 742: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 743: if (!$Apache::lonhomework::parsing_a_task) {
744: $result.="
1.406 albertel 745: <div class='LC_edit_problem_header_row1'>
746: <span class=\"LC_nobreak\">
1.405 albertel 747: ".&mt("Problem Status:")."
1.235 albertel 748: <select name='problemstate'>
1.270 albertel 749: <option value=''></option>
1.235 albertel 750: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
751: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
752: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
753: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
754: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
755: </select>
1.406 albertel 756: </span>
757: <span class=\"LC_nobreak\">
1.405 albertel 758: ".&mt("Problem Type:")."
1.235 albertel 759: <select name='problemtype'>
1.270 albertel 760: <option value=''></option>
1.509 bisitz 761: ".&option('exam' ,'problemtype').&mt("Bubblesheet Exam Problem")."</option>
1.428 raeburn 762: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 763: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 764: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
765: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
766: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 767: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 768: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 769: </select>
1.406 albertel 770: </span>
771: $show_all
772: </div>
773: <div class='LC_edit_problem_header_row2'>
774: <span class=\"LC_nobreak\">
1.405 albertel 775: ".&mt("Feedback Mode:")."
1.235 albertel 776: <select name='problemstatus'>
777: <option value=''></option>
1.242 albertel 778: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.517 bisitz 779: ".&option('no', 'problemstatus').&mt("Don't Show Incorrect/Correct Feedback")."</option>
1.405 albertel 780: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 781: </select>
1.406 albertel 782: </span>
783: ";
784:
1.376 albertel 785: } elsif ($Apache::lonhomework::parsing_a_task) {
786: $result.="
1.406 albertel 787: <div class='LC_edit_problem_header_row1'>
788: <span class=\"LC_nobreak\">
1.405 albertel 789: ".&mt("Problem Status:")."
1.376 albertel 790: <select name='problemstate'>
791: <option value=''></option>
792: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
793: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
794: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
795: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
796: </select>
1.406 albertel 797: </span>
798: $show_all
799: ";
800: }
801: $result.='
802: <span class="LC_nobreak">
803: '.&mt('Apply style file: ').'
804: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
805: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
806: </span>
1.422 www 807: </div>
808: <div class="LC_edit_problem_header_row1">'.
809: &Apache::lonxml::renderingoptions().'
1.406 albertel 810: </div>
811: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
812: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
813: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
814: </div>
1.453 bisitz 815: <hr />
1.406 albertel 816: <div class="LC_edit_problem_header_randomize_row">
817: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
818: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 819: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 820: $rndseed.'"
821: onchange="javascript:document.lonhomework.changerandseed.click()" />';
822:
823: if (!$Apache::lonhomework::parsing_a_task) {
824: my $numtoanalyze=$env{'form.numtoanalyze'};
825: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 826: $result .= '<span class="LC_nobreak">'.
827: &mt('[_1] for [_2] versions.',
1.416 raeburn 828: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 829: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
830: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 831: $numtoanalyze.'" size="5" />').
832: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
833: '</span>';
834:
1.313 albertel 835: }
1.406 albertel 836:
837: $result.='
838: </div>
1.453 bisitz 839: <hr />
1.447 bisitz 840: <div>';
1.416 raeburn 841: $result.='<input type="hidden" name="problemmode" value="view" />';
842: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
843: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
844: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
845: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 846: $result.='
847: </div>
1.453 bisitz 848: <hr />
1.409 albertel 849: '.&Apache::lonxml::message_location().'
1.406 albertel 850: </div>';
1.159 albertel 851: return $result;
1.48 albertel 852: }
853:
1.65 albertel 854: sub initialize_storage {
1.357 albertel 855: my ($given_symb) = @_;
1.353 albertel 856: undef(%Apache::lonhomework::results);
857: undef(%Apache::lonhomework::history);
1.357 albertel 858: my ($symb,$courseid,$domain,$name) =
1.367 albertel 859: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 860:
861: # anonymous users (CODEd exams) have no data
862: if ($name eq 'anonymous'
863: && !defined($domain)) {
864: return;
865: }
866:
1.333 albertel 867: if ($env{'request.state'} eq 'construct'
868: || $symb eq ''
869: || $Apache::lonhomework::type eq 'practice') {
870:
871: my $namespace = $symb || $env{'request.uri'};
872: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 873: ($env{'form.resetdata'} eq &mt('New Problem Variation')
874: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 875: $env{'form.newrandomization'} eq &mt('New Randomization')) {
876: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
877: &Apache::lonxml::debug("Attempt reset");
878: }
1.159 albertel 879: %Apache::lonhomework::history=
1.333 albertel 880: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 881: my ($temp)=keys %Apache::lonhomework::history ;
882: &Apache::lonxml::debug("Return message of $temp");
883: } else {
884: %Apache::lonhomework::history=
885: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
886: }
1.353 albertel 887:
1.159 albertel 888: #ignore error conditions
1.67 albertel 889: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 890: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 891: }
892:
1.435 jms 893: =pod
894:
895: =item finalize_storage()
896:
897: Stores away the result has to a student's environment
898: checks form.grade_ for specific values, other wises stores
899: to the running users environment
900: Will increment totals for attempts, students, and corrects
901: if running user has student role.
902:
903: =cut
904:
905:
1.65 albertel 906: sub finalize_storage {
1.357 albertel 907: my ($given_symb) = @_;
1.159 albertel 908: my $result;
1.289 albertel 909: if (%Apache::lonhomework::results) {
1.323 albertel 910: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
911: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 912: my ($symb,$courseid,$domain,$name) =
1.367 albertel 913: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 914: if ($env{'request.state'} eq 'construct'
915: || $symb eq ''
916: || $Apache::lonhomework::type eq 'practice') {
917: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 918: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 919: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 920: $namespace,'',$domain,$name);
1.159 albertel 921: &Apache::lonxml::debug('Construct Store return message:'.$result);
922: } else {
923: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
924: $symb,$courseid,$domain,$name);
925: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 926: &store_aggregates($symb,$courseid);
1.159 albertel 927: }
1.323 albertel 928: } else {
929: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 930: }
1.159 albertel 931: return $result;
1.65 albertel 932: }
933:
1.435 jms 934: =pod
935:
936: item store_aggregates()
937:
938: Sends hash of values to be incremented in nohist_resourcetracker.db
939: for the course. Increments total number of attempts, unique students
940: and corrects for each part for an instance of a problem, as appropriate.
941:
942: =cut
943:
1.285 raeburn 944: sub store_aggregates {
945: my ($symb,$courseid) = @_;
1.479 raeburn 946: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 947: my @parts;
1.288 albertel 948: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
949: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 950: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 951: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 952: push(@parts, $1);
1.285 raeburn 953: }
954: }
1.286 albertel 955: foreach my $part (@parts) {
1.470 raeburn 956: if ($env{'request.role'} =~/^st/) {
957: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
958: eq 'APPROX_ANS' ||
959: $Apache::lonhomework::results{'resource.'.$part.'.award'}
960: eq 'EXACT_ANS') {
961: $aggregate{$symb."\0".$part."\0correct"} = 1;
962: }
963: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
964: $aggregate{$symb."\0".$part."\0users"} = 1;
965: } else {
966: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
967: if ($last_reset) {
968: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
969: $aggregate{$symb."\0".$part."\0users"} = 1;
970: }
971: }
972: }
973: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 974: }
1.470 raeburn 975: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 976: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
977: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
978: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
979: $randtrycounter{$symb."\0".$part} = 1;
980: } else {
981: $anoncounter{$symb."\0".$part} = 1;
982: }
1.470 raeburn 983: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
984: if ($needsrelease) {
985: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
986: if ($curr_required eq '') {
1.471 raeburn 987: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 988: } else {
989: my ($currmajor,$currminor) = split(/\./,$curr_required);
990: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
991: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 992: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 993: }
1.292 raeburn 994: }
995: }
1.285 raeburn 996: }
997: }
1.292 raeburn 998: if (keys (%aggregate) > 0) {
1.289 albertel 999: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 1000: $cdomain,$cname);
1001: }
1.472 raeburn 1002: if (keys(%anoncounter) > 0) {
1.481 raeburn 1003: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
1004: $cdomain,$cname);
1.472 raeburn 1005: }
1.479 raeburn 1006: if (keys(%randtrycounter) > 0) {
1.481 raeburn 1007: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
1008: $cdomain,$cname);
1.479 raeburn 1009: }
1.292 raeburn 1010: }
1.289 albertel 1011:
1.65 albertel 1012: sub checkout_msg {
1.211 albertel 1013: my %lt=&Apache::lonlocal::texthash(
1014: 'resource'=>'The resource needs to be checked out',
1015: '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.',
1016: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
1.509 bisitz 1017: 'checkout'=>'Check out Bubblesheet Exam for Viewing',
1018: 'checkout?'=>'Check out Bubblesheet Exam?');
1.352 albertel 1019: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 1020: return (<<ENDCHECKOUT);
1.211 albertel 1021: <h2>$lt{'resource'}</h2>
1022: <p>$lt{'id_expln'}</p>
1.449 bisitz 1023: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 1024: <form name="checkout" method="post" action="$uri">
1.91 albertel 1025: <input type="hidden" name="doescheckout" value="yes" />
1.514 bisitz 1026: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onclick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 1027: </form>
1028: ENDCHECKOUT
1029: }
1030:
1.252 albertel 1031: sub firstaccess_msg {
1.253 albertel 1032: my ($time,$symb)=@_;
1.414 albertel 1033: my $result;
1034: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1035: if ($interval[1] eq 'map') {
1036: my ($map)=&Apache::lonnet::decode_symb($symb);
1037: my $foldertitle=&Apache::lonnet::gettitle($map);
1038:
1039: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 1040: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
1041: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1042: ,$foldertitle,$time)."</p>";
1.414 albertel 1043: } elsif ($interval[1] eq 'course') {
1044: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 1045: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 1046: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 1047: ,$course,$time)."</p>";
1.414 albertel 1048: } else {
1049: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1050: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1051: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1052: ,$title,$time)."</p>";
1.414 albertel 1053: }
1.352 albertel 1054: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1055: my $buttontext = &mt('Show Resource');
1056: my $timertext = &mt('Start Timer?');
1.414 albertel 1057: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1058: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1059: <input type="hidden" name="markaccess" value="yes" />
1.514 bisitz 1060: <input type="button" name="accessbutton" value="$buttontext" onclick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1061: </form>
1062: ENDCHECKOUT
1.414 albertel 1063: return $result;
1.252 albertel 1064: }
1065:
1.204 albertel 1066: sub init_problem_globals {
1067: my ($type)=@_;
1068: #initialize globals
1.308 foxr 1069: # For problems, we start out in part 0 (outside a <part> tag).
1070: # and part 0 is used to describe the main body of the <problem>
1071: #
1.204 albertel 1072: if ($type eq 'problem') {
1073: $Apache::inputtags::part='0';
1074: @Apache::inputtags::partlist=('0');
1.405 albertel 1075: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1076: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1077:
1.266 albertel 1078: } elsif ($type eq 'library') {
1.204 albertel 1079: $Apache::inputtags::part='';
1080: @Apache::inputtags::partlist=();
1.405 albertel 1081: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1082: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1083:
1.304 albertel 1084: } elsif ($type eq 'Task') {
1085: $Apache::inputtags::part='0';
1086: @Apache::inputtags::partlist=('0');
1.405 albertel 1087: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1088: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1089: }
1.477 www 1090: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1091: @Apache::inputtags::responselist = ();
1092: @Apache::inputtags::importlist = ();
1093: @Apache::inputtags::previous=();
1094: @Apache::inputtags::previous_version=();
1095: $Apache::structuretags::printanswer='No';
1096: @Apache::structuretags::whileconds=();
1097: @Apache::structuretags::whilebody=();
1098: @Apache::structuretags::whileline=();
1099: $Apache::lonhomework::scantronmode=0;
1100: undef($Apache::lonhomework::name);
1.358 albertel 1101: undef($Apache::lonhomework::default_type);
1102: undef($Apache::lonhomework::type);
1.204 albertel 1103: }
1104:
1105: sub reset_problem_globals {
1106: my ($type)=@_;
1107: undef(%Apache::lonhomework::history);
1108: undef(%Apache::lonhomework::results);
1109: undef($Apache::inputtags::part);
1.498 raeburn 1110: if ($type eq 'Task') {
1111: undef($Apache::inputtags::slot_name);
1112: }
1.208 albertel 1113: #don't undef this, lonhomework.pm takes care of this, we use this to
1114: #detect if we try to do 2 problems in one file
1115: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1116: undef($Apache::lonhomework::name);
1.358 albertel 1117: undef($Apache::lonhomework::default_type);
1118: undef($Apache::lonhomework::type);
1119: undef($Apache::lonhomework::scantronmode);
1120: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1121: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1122: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1123: }
1124:
1.241 albertel 1125: sub set_problem_state {
1.240 albertel 1126: my ($part)=@_;
1.284 albertel 1127: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1128: $Apache::lonhomework::history{"resource.$part.solved"}=
1129: 'correct_by_student';
1130: }
1131: }
1132:
1.241 albertel 1133: sub get_problem_status {
1134: my ($part)=@_;
1.267 albertel 1135: my $problem_status;
1.284 albertel 1136: if ($env{'request.state'} eq 'construct' &&
1137: defined($env{'form.problemstatus'})) {
1138: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1139: } else {
1140: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1141: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1142: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1143: }
1144: return $problem_status;
1145: }
1146:
1.9 albertel 1147: sub start_problem {
1.326 albertel 1148: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1149:
1.311 foxr 1150: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1151: if (!$Apache::lonxml::metamode) {
1152: &Apache::lonxml::startredirection();
1153: }
1.311 foxr 1154:
1.308 foxr 1155: # Problems don't nest and we don't allow more than one <problem> in
1156: # a .problem file.
1157: #
1.184 albertel 1158: if ( $Apache::inputtags::part ne '' ||
1159: $Apache::lonhomework::parsing_a_problem) {
1160: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1161: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1162: return '';
1163: }
1.184 albertel 1164:
1165: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1166: &init_problem_globals('problem');
1.166 albertel 1167:
1.284 albertel 1168: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1169: $Apache::lonhomework::scantronmode=1;
1170: }
1.161 albertel 1171:
1.159 albertel 1172: if ($target ne 'analyze') {
1.415 raeburn 1173: my $type = &Apache::lonnet::EXT('resource.0.type');
1174: $Apache::lonhomework::type=$type;
1.284 albertel 1175: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1176: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1177: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1178: }
1.332 albertel 1179: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1180: }
1.164 albertel 1181: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1182: my $uri=$env{'request.uri'};
1.159 albertel 1183: if ($uri=~/\.(\w+)$/) {
1184: $Apache::lonhomework::type=$1;
1185: &Apache::lonxml::debug("Using type of $1");
1186: } else {
1187: $Apache::lonhomework::type='problem';
1188: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1189: }
1.87 albertel 1190: }
1.301 albertel 1191: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1192:
1.363 albertel 1193: &initialize_storage();
1.389 albertel 1194: if ($target ne 'analyze'
1195: && $env{'request.state'} eq 'construct') {
1196: &set_problem_state('0');
1197: }
1198:
1.366 albertel 1199: if ($target eq 'web') {
1200: &Apache::lonxml::debug(" grading history ");
1201: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1202: }
1.363 albertel 1203:
1.159 albertel 1204: #added vars to the scripting enviroment
1.213 albertel 1205: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1206: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1207: &Apache::run::run($expression,$safeeval);
1.159 albertel 1208: my $status;
1209: my $accessmsg;
1.508 raeburn 1210: my $resource_due;
1.159 albertel 1211:
1.343 albertel 1212: my $name= &get_resource_name($parstack,$safeeval);
1.506 raeburn 1213: my ($result,$form_tag_start,$slot_name,$slot);
1214:
1215: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1216: $target eq 'tex') {
1217: if ($env{'form.markaccess'}) {
1218: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1.519 raeburn 1219: &Apache::lonnet::set_first_access($interval[1],$interval[0]);
1.506 raeburn 1220: }
1221:
1222: ($status,$accessmsg,$slot_name,$slot) =
1223: &Apache::lonhomework::check_slot_access('0','problem');
1224: push (@Apache::inputtags::status,$status);
1225: }
1226:
1.354 albertel 1227: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1228: || $target eq 'edit') {
1.350 albertel 1229: ($result,$form_tag_start) =
1230: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1231: $name);
1232: }
1233:
1.284 albertel 1234: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1235:
1.479 raeburn 1236: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1237: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1238: $target eq 'tex') {
1.479 raeburn 1239:
1.159 albertel 1240: #handle rand seed in construction space
1.479 raeburn 1241: my $rndseed=&setup_rndseed($safeeval,$target);
1.367 albertel 1242: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 1243:
1.333 albertel 1244: if ($env{'request.state'} ne "construct" &&
1245: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1246: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1247: $rndseed.'" />'.
1248: '<input type="submit" name="resetdata"
1249: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1250: if (exists($env{'form.username'})) {
1251: $form_tag_start.=
1.164 albertel 1252: '<input type="hidden" name="username"
1.284 albertel 1253: value="'.$env{'form.username'}.'" />';
1.334 albertel 1254: }
1.462 raeburn 1255: if ($env{'request.role.adv'}) {
1256: $form_tag_start.= ' <label class="LC_nobreak">'
1257: .'<input type="checkbox" name="showallfoils"';
1258: if (defined($env{'form.showallfoils'})) {
1259: $form_tag_start.=' checked="checked"';
1260: }
1261: $form_tag_start.= ' /> '
1262: .&mt('Show All Foils')
1263: .'</label>';
1264: }
1.417 www 1265: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1266: $form_tag_start.=&practice_problem_header();
1.417 www 1267: }
1.462 raeburn 1268: $form_tag_start.='<hr />';
1.479 raeburn 1269: } elsif (($env{'request.state'} ne "construct") &&
1270: ($Apache::lonhomework::type eq 'randomizetry') &&
1271: ($status eq 'CAN_ANSWER')) {
1272: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1273: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1274: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1275: }
1.324 albertel 1276:
1.159 albertel 1277: my $expression='$external::datestatus="'.$status.'";';
1278: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1279: &Apache::run::run($expression,$safeeval);
1280: &Apache::lonxml::debug("Got $status");
1.324 albertel 1281:
1.159 albertel 1282: if (( $status eq 'CLOSED' ) ||
1283: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1284: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1285: ( $status eq 'BANNED') ||
1.216 albertel 1286: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1287: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1288: ( $status eq 'NOTRESERVABLE') ||
1289: ( $status eq 'RESERVABLE') ||
1290: ( $status eq 'RESERVABLE_LATER') ||
1.216 albertel 1291: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1292: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1293: $style);
1.159 albertel 1294: if ( $target eq "web" ) {
1.343 albertel 1295: my $msg;
1.159 albertel 1296: if ($status eq 'UNAVAILABLE') {
1.504 golterma 1297: $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1.441 raeburn 1298: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.504 golterma 1299: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1.499 raeburn 1300: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1301: ($status eq 'NOTRESERVABLE')) {
1.504 golterma 1302: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1.253 albertel 1303: } elsif ($status ne 'NOT_YET_VIEWED') {
1.504 golterma 1304: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1.499 raeburn 1305: }
1.216 albertel 1306: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1307: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1308: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1309: $msg.=&checkout_msg();
1.252 albertel 1310: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1311: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1312: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1313: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.499 raeburn 1314: } elsif ($status eq 'RESERVABLE') {
1315: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1316: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1317: '<br />'.
1318: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1319: } elsif ($status eq 'RESERVABLE_LATER') {
1320: $msg.=&mt('Window to make a reservation will open [_1].',
1321: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1322: } elsif ($status eq 'NOTRESERVABLE') {
1323: $msg.=&mt('Not available to make a reservation.');
1.159 albertel 1324: }
1325: $result.=$msg.'<br />';
1326: } elsif ($target eq 'tex') {
1.332 albertel 1327: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1328: : '\begin{minipage}{\textwidth}';
1.443 foxr 1329: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1330: $startminipage.'\vskip 0 mm';
1.159 albertel 1331: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1332: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1333: } else {
1.211 albertel 1334: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1335: }
1336: }
1.324 albertel 1337: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1338: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1339: $style);
1.324 albertel 1340: if ($target eq 'web') {
1.375 albertel 1341: $result .=
1342: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1343: } elsif ($target eq 'grade') {
1344: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1345: 'problem');
1346: }
1.159 albertel 1347: } elsif ($target eq 'web') {
1.508 raeburn 1348: if ($status eq 'CAN_ANSWER') {
1349: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1350: if ($slot_name ne '') {
1351: my $checked_in =
1352: $Apache::lonhomework::history{'resource.0.checkedin'};
1353: if ($checked_in eq '') {
1354: # unproctored slot access, self checkin
1355: &Apache::bridgetask::check_in('problem',undef,undef,
1356: $slot_name);
1357: $checked_in =
1358: $Apache::lonhomework::results{"resource.0.checkedin"};
1359: }
1360: if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1361: if ($slot->{'starttime'} < time()) {
1362: if (!$resource_due) {
1363: $resource_due = $slot->{'endtime'};
1364: } elsif ($slot->{'endtime'} < $resource_due) {
1365: $resource_due = $slot->{'endtime'};
1366: }
1367: }
1368: }
1369: }
1370: if ($resource_due) {
1371: my $time_left = $resource_due - time();
1372: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1373: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1374: }
1375: }
1376: }
1.368 albertel 1377: $result.="\n $form_tag_start \t".
1.227 albertel 1378: '<input type="hidden" name="submitted" value="yes" />';
1379: # create a page header and exit
1.284 albertel 1380: if ($env{'request.state'} eq "construct") {
1381: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1382: if ($Apache::lonhomework::type eq 'practice') {
1383: $result.= '<input type="submit" name="resetdata" '.
1384: 'value="'.&mt('New Problem Variation').'" />'.
1385: &practice_problem_header().'<hr />';
1386: }
1.227 albertel 1387: }
1388: # if we are viewing someone else preserve that info
1.284 albertel 1389: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1390: foreach my $field ('symb','courseid','domain','username') {
1391: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1392: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1393: }
1.479 raeburn 1394: foreach my $field ('trial','questiontype') {
1395: if ($env{"form.grade_$field"} ne '') {
1396: $result .= '<input type="hidden" name="grade_'.$field.
1397: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1398: }
1399: }
1.159 albertel 1400: }
1.490 raeburn 1401: if ($env{'form.grade_imsexport'}) {
1402: $result = '';
1403: }
1.159 albertel 1404: } elsif ($target eq 'tex') {
1.319 foxr 1405: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 1406: $result .= &select_metadata_hyphenation();
1407:
1.319 foxr 1408:
1.99 sakharuk 1409: }
1.159 albertel 1410: } elsif ($target eq 'edit') {
1.343 albertel 1411: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1412: $Apache::lonxml::warnings_error_header=
1413: &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 1414: my $temp=&Apache::edit::insertlist($target,$token);
1415: $result.=$temp;
1416: } elsif ($target eq 'modified') {
1417: $result=$token->[4];
1418: } else {
1419: # page_start returned a starting result, delete it if we don't need it
1420: $result = '';
1.99 sakharuk 1421: }
1.159 albertel 1422: return $result;
1.9 albertel 1423: }
1424:
1425: sub end_problem {
1.159 albertel 1426: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1427: my $result;
1.310 foxr 1428:
1.321 albertel 1429: if (!$Apache::lonxml::metamode) {
1430: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1431: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1432: }
1.319 foxr 1433:
1434: if ($target eq 'tex') {
1.321 albertel 1435: # Figure out the front matter and replace the
1436: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1437: # this in end_problem because whether or not we display due
1438: # dates depends on whether due dates have already been
1439: # displayed in the problem parts.
1440:
1.319 foxr 1441: my $frontmatter = '';
1442: my $startminipage = '';
1443: if (not $env{'form.problem_split'}=~/yes/) {
1444: $startminipage = '\begin{minipage}{\textwidth}';
1445: }
1446: my $id = $Apache::inputtags::part;
1447: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1448: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1449: my @packages = split /,/,$packages;
1450: my $allow_print_points = 0;
1451: foreach my $partial_key (@packages) {
1452: if ($partial_key=~m/^part_0$/) {
1453: $allow_print_points=1;
1454: }
1455: }
1456: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1457: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1458: if (lc($env{'course.'.$env{'request.course.id'}.
1459: '.disableexampointprint'}) eq 'yes') {
1460: $allow_print_points=0;
1461: }
1462: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1463: 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 1464: &clear_required_languages();
1.319 foxr 1465: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1466: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1467:
1468: # Figure out what the due date is and if we need to print
1469: # it in the problem header. We have been logging the
1470: # last due date written to file.
1471:
1472: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1473: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1474: my $duedate_text = &mt('Due date: [_1]'
1475: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1476: my $temp_file;
1477: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1478:
1479: # Figure out what the last printed due date is or set it
1480: # to the epoch if no duedates have been printed.
1481:
1482: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1483: if (-e $filename) {
1484: $temp_file = Apache::File->new($filename);
1485: my @due_file = <$temp_file>;
1486: $due_file_content = $due_file[$#due_file];
1487: chomp $due_file_content;
1488: }
1489:
1490: # We display the due date iff it is not the same as the last
1491: # duedate in problem header ($due_file_content), and
1492: # none of our parts displayed a duedate.
1493: #
1494: my $parts_with_displayduedate;
1495: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1496: $parts_with_displayduedate =
1497: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1498: } else {
1499: $parts_with_displayduedate = 0;
1500: }
1501: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1502: $temp_file = Apache::File->new('>'.$filename);
1503: print $temp_file "$duetime\n";
1504: if (not $env{'request.symb'} =~ m/\.page_/) {
1505: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1506: $frontmatter .= $begin_doc.
1.448 bisitz 1507: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1508: } else {
1509: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1510: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1511: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1512: }
1.319 foxr 1513: }
1514: } else {
1.448 bisitz 1515: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1516: }
1517: } else {
1518: if (not $env{'request.symb'} =~ m/\.page_/) {
1519: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1520: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1521: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1522: }
1.319 foxr 1523: } else {
1.381 albertel 1524: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1525: }
1526: }
1527: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1528: }
1529:
1.159 albertel 1530: my $status=$Apache::inputtags::status['-1'];
1531: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1532: $target eq 'tex') {
1.249 albertel 1533: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1534: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1535: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1536: &Apache::inputtags::grade;
1.324 albertel 1537: } elsif ($status eq 'NEEDS_CHECKIN') {
1538: # no need to grade, and don't want to hide data
1.249 albertel 1539: } else {
1540: # move any submission data to .hidden
1541: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1542: }
1.159 albertel 1543: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1544: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1545: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1546: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1547: # if part is zero, no <part>s existed, so we need show the current
1548: # grading status
1549: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1550: $result.= $gradestatus;
1551: }
1552: if (
1.284 albertel 1553: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1554: ($target eq 'answer') || ($target eq 'tex')
1555: ) {
1.490 raeburn 1556: if (($target ne 'tex') &&
1557: ($env{'form.answer_output_mode'} ne 'tex') &&
1558: (!$env{'form.grade_imsexport'})) {
1.254 www 1559: $result.="</form>";
1.159 albertel 1560: }
1561: if ($target eq 'web') {
1.507 raeburn 1562: #
1563: # Closing </body></html> not added by end_page().
1564: # Added separately at end of this routine, after added
1565: # <script></script> so document will be valid xhtml.
1566: #
1567: $result.= &Apache::loncommon::end_page({'discussion' => 1,
1568: 'notbody' => 1});
1.159 albertel 1569: } elsif ($target eq 'tex') {
1.178 sakharuk 1570: my $endminipage = '';
1.284 albertel 1571: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1572: $endminipage = '\end{minipage}';
1573: }
1.284 albertel 1574: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1575: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1576: } else {
1.262 sakharuk 1577: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1578: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1579: $result .= $endminipage.'\end{document} ';
1580: } else {
1.382 albertel 1581: $result .= $endminipage;
1.262 sakharuk 1582: }
1.159 albertel 1583: }
1584: }
1585: }
1.476 www 1586: if ($target eq 'web') {
1587: $result.=&Apache::functionplotresponse::init_script();
1588: }
1.159 albertel 1589: if ($target eq 'grade') {
1590: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1591: &finalize_storage();
1592: }
1.284 albertel 1593: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1594: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1595: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1596: # normally we get it from above, but in CSTR
1.172 albertel 1597: # we always show answer mode too.
1.159 albertel 1598: }
1599: } elsif ($target eq 'meta') {
1600: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1601: @Apache::inputtags::response=();
1.159 albertel 1602: $result=&Apache::response::mandatory_part_meta;
1603: }
1.215 albertel 1604: $result.=&Apache::response::meta_part_order();
1.258 albertel 1605: $result.=&Apache::response::meta_response_order();
1.159 albertel 1606: } elsif ($target eq 'edit') {
1607: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1608: $result .= &problem_edit_footer();
1.320 albertel 1609: } elsif ($target eq 'modified') {
1610: $result .= $token->[2];
1.159 albertel 1611: }
1.155 albertel 1612:
1.284 albertel 1613: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1614: &Apache::inputtags::check_for_duplicate_ids();
1615: }
1.204 albertel 1616:
1617: &reset_problem_globals('problem');
1.159 albertel 1618:
1.502 foxr 1619: #
1620: # This shouild be just above the return so that the
1621: # time put in the javascript is as late as possible in the
1622: # computation:
1623: #
1624: if ($target eq 'web') {
1625: $result .= &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 1626: #
1627: # Closing tags delayed so any <script></script> tags
1628: # not in head can appear inside body, for valid xhtml.
1629: #
1630: $result .= "</body>\n</html>";
1.502 foxr 1631: }
1.159 albertel 1632: return $result;
1.48 albertel 1633: }
1634:
1.108 albertel 1635:
1.48 albertel 1636: sub start_library {
1.159 albertel 1637: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1638: my ($result,$form_tag_start);
1.371 albertel 1639: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1640: &init_problem_globals('library');
1641: $Apache::lonhomework::type='problem';
1642: }
1.159 albertel 1643: if ($target eq 'edit') {
1.343 albertel 1644: ($result,$form_tag_start)=
1645: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1646: 'Edit');
1647: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1648: my $temp=&Apache::edit::insertlist($target,$token);
1649: $result.=$temp;
1650: } elsif ($target eq 'modified') {
1651: $result=$token->[4];
1.340 albertel 1652: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1653: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1654: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1655: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1656: ($result,$form_tag_start)=
1657: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1658: $name);
1.479 raeburn 1659: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 1660: $result.=" \n $form_tag_start".
1.159 albertel 1661: '<input type="hidden" name="submitted" value="yes" />';
1662: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1663: if ($Apache::lonhomework::type eq 'practice') {
1664: $result.= '<input type="submit" name="resetdata" '.
1665: 'value="'.&mt('New Problem Variation').'" />'.
1666: &practice_problem_header().'<hr />';
1667: }
1.159 albertel 1668: }
1669: return $result;
1.48 albertel 1670: }
1671:
1672: sub end_library {
1.159 albertel 1673: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1674: my $result='';
1675: if ($target eq 'edit') {
1676: $result=&problem_edit_footer();
1.371 albertel 1677: } elsif ($target eq 'web'
1678: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1679: && $env{'request.state'} eq "construct") {
1.349 albertel 1680: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1681: }
1.371 albertel 1682: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1683: &reset_problem_globals('library');
1684: }
1.159 albertel 1685: return $result;
1.197 www 1686: }
1687:
1688: sub start_definetag {
1.326 albertel 1689: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1690:
1691: my $result;
1692:
1693: my $name = $token->[2]->{'name'};
1.326 albertel 1694: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1695: if ($target eq 'web') {
1696: if ($name=~/^\//) {
1697: $result=
1698: '<br /><table class="LC_sty_end"><tr><th>'.
1699: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1700: } else {
1701: $result=
1702: '<br /><table class="LC_sty_begin"><tr><th>'.
1703: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1704: }
1705: $skip = &HTML::Entities::encode($skip, '<>&"');
1706: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1707: }
1708: return $result;
1709: }
1710:
1711: sub end_definetag {
1712: return '';
1.1 albertel 1713: }
1714:
1715: sub start_block {
1.201 albertel 1716: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1717:
1718: my $result;
1.1 albertel 1719:
1.339 albertel 1720: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1721: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1722: my $code = $token->[2]->{'condition'};
1.385 albertel 1723: if (defined($code) && $code ne '') {
1.137 albertel 1724: if (!$Apache::lonxml::default_homework_loaded) {
1725: &Apache::lonxml::default_homework_load($safeeval);
1726: }
1.131 albertel 1727: $result = &Apache::run::run($code,$safeeval);
1728: &Apache::lonxml::debug("block :$code: returned :$result:");
1729: } else {
1730: $result='1';
1731: }
1732: if ( ! $result ) {
1.201 albertel 1733: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1734: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1735: }
1736: $result='';
1737: } elsif ($target eq 'edit') {
1738: $result .=&Apache::edit::tag_start($target,$token);
1739: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1740: $token,40);
1741: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1742: } elsif ($target eq 'modified') {
1743: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1744: $safeeval,'condition');
1745: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1746: }
1.131 albertel 1747: return $result;
1.1 albertel 1748: }
1749:
1750: sub end_block {
1.167 www 1751: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1752: my $result;
1753: if ($target eq "edit") {
1754: $result.= &Apache::edit::tag_end($target,$token,'');
1755: }
1756: return $result;
1757: }
1.500 foxr 1758: #
1759: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
1760: # ...
1761: # </languageblock>
1762: #
1763: # This declares the intent to provide content that can be rendered in the
1764: # set of languages in the include specificatino but not in the exclude
1765: # specification. If a currently preferred language is in the include list
1766: # the content in the <languageblock>...</languageblock> is rendered
1767: # If the currently preferred language is in the exclude list,
1768: # the content in the <languageblock>..></languageblock is not rendered.
1769: #
1770: # Pathalogical case handling:
1771: # - Include specified, without the preferred language but exclude specified
1772: # also without the preferred langauge results in rendering the block.
1773: # - Exclude specified without include and excluden not containing a
1774: # preferred language renders the block.
1775: # - Include and exclude both specifying the preferred language does not
1776: # render the block.
1777: # - If neither include/exclude is specified, the block gets rendered.
1778: #
1779: # This tag has no effect when target is in {edit, modified}
1780: #
1.167 www 1781: sub start_languageblock {
1.201 albertel 1782: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1783:
1.500 foxr 1784: my $result = '';
1.167 www 1785:
1.339 albertel 1786: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1787: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1788: my $include = $token->[2]->{'include'};
1789: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1790: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 1791:
1792: # This should not even happen, since we should at least have the server language
1793:
1794: if (!$preferred_languages[0]) {
1795: $preferred_languages[0]='en';
1796: }
1797:
1798: # Now loop over all languages in order of preference
1799:
1800: my $render;
1.398 www 1801: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 1802:
1803: # If neither include/nor exlude is present the block is going
1804: # to get rendered.
1805:
1.399 www 1806: my $found=0;
1.500 foxr 1807: $render=1;
1808:
1809: # If include is specified, don't render the block
1810: # unless the preferred language is included in the set.
1811:
1.398 www 1812: if ($include) {
1.500 foxr 1813: $render=0;
1.398 www 1814: foreach my $included_language (split(/\,/,$include)) {
1815: if ($included_language eq $preferred_language) {
1.500 foxr 1816: $render=1;
1.399 www 1817: $found=1;
1.500 foxr 1818: last; # Only need to find the first.
1.398 www 1819: }
1820: }
1821: }
1.500 foxr 1822: # Do we have an exclude argument?
1823: # If so, and one of the languages matches a preferred language
1824: # inhibit rendering the block. Note that in the pathalogical case the
1825: # author has specified a preferred language in both the include and exclude
1826: # attribte exclude is preferred.
1827:
1.398 www 1828: if ($exclude) {
1.500 foxr 1829: $render=1;
1.398 www 1830: foreach my $excluded_language (split(/\,/,$exclude)) {
1831: if ($excluded_language eq $preferred_language) {
1.500 foxr 1832: $render=0;
1.399 www 1833: $found=1;
1.500 foxr 1834: last; # Only need to find the first.
1.398 www 1835: }
1836: }
1837: }
1.500 foxr 1838: if ($found) {
1839: last; # Done on any match of include or exclude.
1840: }
1.398 www 1841: }
1.500 foxr 1842: # If $render not true skip the entire block until </languageblock>
1843: #
1844:
1845: if ( ! $render ) {
1.201 albertel 1846: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1847: $style);
1848: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1849: }
1.500 foxr 1850: # If $render is true, we've not skipped the contents of the <languageglock>
1851: # and the normal loncapa processing flow will render it as a matter of course.
1852:
1.167 www 1853: } elsif ($target eq 'edit') {
1854: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1855: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1856: $token,40);
1.211 albertel 1857: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1858: $token,40);
1859: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1860: } elsif ($target eq 'modified') {
1861: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1862: $safeeval,'include',
1863: 'exclude');
1.167 www 1864: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1865: }
1866: return $result;
1867: }
1868:
1869: sub end_languageblock {
1.170 www 1870: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1871: my $result;
1.201 albertel 1872: if ($target eq "edit") {
1.170 www 1873: $result.= &Apache::edit::tag_end($target,$token,'');
1874: }
1875: return $result;
1876: }
1.500 foxr 1877: # languagblock specific tags:
1878: {
1879: # For chunks of a resource that has translations, this hash contains
1880: # the translations available indexed by language name.
1881: #
1882:
1883: my %available_texts;
1.170 www 1884:
1.500 foxr 1885: # <translated> starts a block of a resource that has multiple translations.
1886: # See the <lang> tag as well.
1887: # When </translated> is encountered if there is a translation for the
1888: # currently preferred language, that is rendered inthe web/tex/webgrade
1889: # targets. Otherwise, the default text is rendered.
1890: #
1891: # Note that <lang> is only registered for the duration of the
1892: # <translated>...</translated> block
1893: #
1894: # Pathalogical case handling:
1895: # - If there is no <lang> that specifies a 'default' and there is no
1896: # translation that matches a preferred language, nothing is rendered.
1897: # - Nested <translated>...</translated> might be linguistically supported by
1898: # XML due to the stack nature of tag registration(?) however the rendered
1899: # output will be incorrect because there is only one %available_texts
1900: # has and end_translated clears it.
1901: # - Material outside of a <lang>...</lang> block within the
1902: # <translated>...<translated> block won't render either e.g.:
1903: # <translated>
1904: # The following will be in your preferred langauge:
1905: # <lang which='en'>
1906: # This section in english
1907: # </lang>
1908: # <lang which='sgeiso'>
1909: # Hier es ist auf Deutsch.
1910: # </lang>
1911: # <lang which='sfriso'>
1912: # En Francais
1913: # </lang>
1914: # </translated>
1915: #
1916: # The introductory text prior to the first <lang> tag is not rendered.
1917: #
1.397 albertel 1918: sub start_translated {
1919: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1920: &Apache::lonxml::register('Apache::structuretags',('lang'));
1921: undef(%available_texts);
1922: }
1923:
1924: sub end_translated {
1925: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1926: my $result;
1927: #show the translation on viewable targets
1928: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1929: # or non-viewable targets, if it's embedded in something that
1930: # wants the output
1931: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1932: && &Apache::lonxml::in_redirection() ) ) {
1933: my @possibilities = keys(%available_texts);
1934: my $which =
1935: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 1936: if ($target eq 'tex') {
1937: $result = &select_hyphenation($which);
1938: }
1939: $result .= $available_texts{$which};
1940: if ($target eq 'tex') {
1941: $result .= &select_metadata_hyphenation(); # Restore original language.
1942: }
1.397 albertel 1943: }
1944: undef(%available_texts);
1945: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1946: return $result;
1947: }
1948:
1.500 foxr 1949: # <lang [which='language-name'] [other='lang1,lang2...']>
1950: # Specifies that the block contained within it is a translation
1951: # for a specific language specified by the 'which' attribute. The
1952: # 'other' attribute can be used by itself or in conjunction with
1953: # which to specify this tag _may_ be used as a translation for some
1954: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
1955: # specifying that the block provides a translation for US (primary)
1956: # Canadian, Australian and UK Englush.
1957: #
1958: # Comment: this seems a bit silly why not just support a list of languages
1959: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
1960: #
1961: # Effect:
1962: # The material within the <lang>..</lang> block is stored in the
1963: # specified set of $available_texts hash entries, the appropriate one
1964: # is selected at </translated> time.
1965: #
1966: # Pathalogical case handling:
1967: # If a language occurs multiple times within a <translated> block,
1968: # only the last one is rendered e.g.:
1969: #
1970: # <translated>
1971: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
1972: # Red green color blindness is quite common affecting about 7.8% of
1973: # the male population, but onloy about .65% of the female population.
1974: # </lang>
1975: # Red green colour blindness is quite common affecting about 7.8% of
1976: # the male population, but onloy about .65% of the female population.
1977: # <lang which='seniso', other='senisoCA,senisoAU'>
1978: # </translated>
1979: #
1980: # renders the correct spelling of color (colour) for people who have specified
1981: # a preferred language that is one of the British Commonwealth languages
1982: # even though those are also listed as valid selections for the US english
1983: # <lang> block.
1984: #
1.397 albertel 1985: sub start_lang {
1986: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1987: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1988: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1989: &Apache::lonxml::startredirection();
1990: }
1991: return '';
1992: }
1993:
1994: sub end_lang {
1995: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1996: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1997: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1998: my $result = &Apache::lonxml::endredirection();
1999: my $which = &Apache::lonxml::get_param('which',$parstack,
2000: $safeeval);
1.431 raeburn 2001: if ($which=~/\w/) {
2002: $available_texts{$which} = $result;
2003: }
2004: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
2005: $safeeval);
2006: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
2007: if ($language=~/\w/) {
2008: $available_texts{$language} = $result;
2009: }
1.427 bisitz 2010: }
2011:
1.397 albertel 2012: }
2013: return '';
2014: }
1.500 foxr 2015: } # end langauge block specific tags.
2016:
1.397 albertel 2017:
1.170 www 2018: sub start_instructorcomment {
1.201 albertel 2019: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 2020:
2021: my $result;
2022:
1.339 albertel 2023: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2024: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 2025: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 2026: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 2027: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
2028: $parser,$style);
1.170 www 2029: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2030: }
2031: $result='';
2032: } elsif ($target eq 'edit') {
2033: $result .=&Apache::edit::tag_start($target,$token);
2034: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2035: }
2036: return $result;
2037: }
2038:
2039: sub end_instructorcomment {
1.159 albertel 2040: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2041: my $result;
2042: if ($target eq "edit") {
2043: $result.= &Apache::edit::tag_end($target,$token,'');
2044: }
2045: return $result;
1.4 tsai 2046: }
2047:
2048: sub start_while {
1.326 albertel 2049: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2050:
1.160 albertel 2051: my $result;
1.339 albertel 2052: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2053: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2054: my $code = $token->[2]->{'condition'};
1.4 tsai 2055:
1.160 albertel 2056: push( @Apache::structuretags::whileconds, $code);
2057: if (!$Apache::lonxml::default_homework_loaded) {
2058: &Apache::lonxml::default_homework_load($safeeval);
2059: }
2060: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2061: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2062: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2063: push( @Apache::structuretags::whileline, $token->[5]);
2064: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2065: if ( $result ) {
2066: &Apache::lonxml::newparser($parser,\$bodytext);
2067: }
2068: } elsif ($target eq 'edit') {
2069: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2070: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2071: $token,40);
2072: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2073: } elsif ($target eq 'modified') {
2074: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2075: $safeeval,'condition');
2076: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2077: }
1.160 albertel 2078: return $result;
1.4 tsai 2079: }
2080:
2081: sub end_while {
1.159 albertel 2082: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2083: my $result;
2084:
1.339 albertel 2085: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2086: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2087: my $code = pop(@Apache::structuretags::whileconds);
2088: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2089: my $line = pop(@Apache::structuretags::whileline);
2090: my $return = &Apache::run::run($code,$safeeval);
2091: my $starttime=time;
2092: my $error=0;
2093: while ($return) {
2094: if (time-$starttime >
2095: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2096: $return = 0; $error=1; next;
1.161 albertel 2097: }
2098: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2099: if ($target eq 'grade' || $target eq 'answer' ||
2100: $target eq 'analyze') {
2101: # grade/answer/analyze should produce no output but if we
2102: # are redirecting, the redirecter should know what to do
2103: # with the output
2104: if (!$Apache::lonxml::redirection) { undef($result); }
2105: }
1.161 albertel 2106: $return = &Apache::run::run($code,$safeeval);
2107: }
1.516 bisitz 2108: if ($error) {
2109: &Apache::lonxml::error(
2110: '<pre>'
2111: .&mt('Code ran too long. It ran for more than [_1] seconds.',
2112: $Apache::lonnet::perlvar{'lonScriptTimeout'})
2113: .&mt('This occurred while running <while> on line [_1].',
2114: $line)
2115: .'</pre>');
2116: }
1.160 albertel 2117: } elsif ($target eq "edit") {
2118: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2119: }
1.160 albertel 2120: return $result;
1.1 albertel 2121: }
1.6 tsai 2122:
1.160 albertel 2123: # <randomlist show="1">
1.6 tsai 2124: # <tag1>..</tag1>
2125: # <tag2>..</tag2>
2126: # <tag3>..</tag3>
1.160 albertel 2127: # ...
1.6 tsai 2128: # </randomlist>
2129: sub start_randomlist {
1.326 albertel 2130: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2131: my $result;
1.339 albertel 2132: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2133: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2134: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2135: my $b_parser= HTML::LCParser->new(\$body);
2136: $b_parser->xml_mode(1);
2137: $b_parser->marked_sections(1);
1.159 albertel 2138: my $b_tok;
2139: my @randomlist;
2140: my $list_item;
2141: while($b_tok = $b_parser->get_token() ) {
2142: if($b_tok->[0] eq 'S') { # start tag
2143: # get content of the tag until matching end tag
2144: # get all text upto the matching tag
2145: # and push the content into @randomlist
2146: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2147: $b_parser);
2148: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2149: push(@randomlist,$list_item);
2150: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2151: # $list_item</b>";
2152: }
2153: if($b_tok->[0] eq 'T') { # text
2154: # what to do with text in between tags?
2155: # print "<b>TEXT $b_tok->[1]</b><br />";
2156: }
2157: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2158: # print "<b>END-TAG $b_tok->[1]</b><br />";
2159: # }
2160: }
1.303 albertel 2161: if (@randomlist) {
2162: my @idx_arr = (0 .. $#randomlist);
2163: &Apache::structuretags::shuffle(\@idx_arr);
2164: my $bodytext = '';
2165: my $show=$#randomlist;
2166: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2167: $showarg--;
2168: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2169: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2170: my @currlist;
2171: my $part = $Apache::inputtags::part;
2172: if ($part ne '') {
2173: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2174: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2175: if (!(grep(/^\Q$part\E$/,@currlist))) {
2176: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2177: }
2178: } else {
2179: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2180: }
2181: }
2182: }
1.303 albertel 2183: for(0 .. $show) {
2184: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
2185: }
2186: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2187: }
2188: } elsif ($target eq 'edit' ) {
2189: $result .=&Apache::edit::tag_start($target,$token);
2190: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2191: $token,5);
2192: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2193: } elsif ($target eq 'modified' ) {
2194: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2195: $safeeval,'show');
2196: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2197: }
2198: return $result;
1.7 tsai 2199: }
2200:
2201: sub shuffle {
2202: my $a=shift;
2203: my $i;
1.303 albertel 2204: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 2205: &Apache::response::pushrandomnumber();
1.159 albertel 2206: for($i=@$a;--$i;) {
2207: my $j=int(&Math::Random::random_uniform() * ($i+1));
2208: next if $i == $j;
2209: @$a[$i,$j] = @$a[$j,$i];
2210: }
1.251 albertel 2211: &Apache::response::poprandomnumber();
1.7 tsai 2212: }
1.6 tsai 2213: }
2214:
2215: sub end_randomlist {
1.159 albertel 2216: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2217: my $result;
2218: if ($target eq 'edit' ) {
2219: $result=&Apache::edit::tag_end($target,$token,
2220: 'End Randomly Parsed Block');
2221: }
2222: return $result;
1.6 tsai 2223: }
2224:
1.283 albertel 2225: sub ordered_show_check {
2226: my $last_part=$Apache::inputtags::partlist[-2];
2227: my $in_order=
2228: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2229: my $in_order_show=1;
2230: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2231: $in_order_show=&Apache::response::check_status($last_part);
2232: }
2233: return $in_order_show;
2234: }
2235:
1.469 www 2236:
2237: sub start_startpartmarker {
2238: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2239: my $result='';
2240: if ($target eq 'edit') {
2241: $result=&Apache::edit::tag_start($target,$token);
2242: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2243: $result.=&Apache::edit::end_table();
2244:
2245: }
2246: return $result;
2247: }
2248:
2249: sub end_startpartmarker {
2250: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2251: my @result;
2252: if ($target eq 'edit') { $result[1]='no'; }
2253: return @result;
2254: }
2255:
2256: sub start_endpartmarker {
2257: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2258: my $result='';
2259: if ($target eq 'edit') {
2260: $result=&Apache::edit::tag_start($target,$token);
2261: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2262: $result.=&Apache::edit::end_table();
2263:
2264: }
2265: return $result;
2266: }
2267:
2268: sub end_endpartmarker {
2269: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2270: my @result;
2271: if ($target eq 'edit') { $result[1]='no'; }
2272: return @result;
2273: }
2274:
2275:
2276:
2277:
2278:
1.11 albertel 2279: sub start_part {
1.326 albertel 2280: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2281: if (!$Apache::lonxml::metamode) {
2282: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2283: # duedates.
2284: }
1.159 albertel 2285: my $result='';
1.386 albertel 2286: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2287: $Apache::inputtags::part=$id;
1.177 albertel 2288: push(@Apache::inputtags::partlist,$id);
2289: @Apache::inputtags::response=();
1.159 albertel 2290: @Apache::inputtags::previous=();
2291: @Apache::inputtags::previous_version=();
1.405 albertel 2292: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2293: &Apache::response::reset_params();
2294:
1.159 albertel 2295: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2296: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2297: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 2298: my $in_order_show=&ordered_show_check();
1.214 albertel 2299: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2300: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2301: &Apache::run::run($expression,$safeeval);
1.159 albertel 2302:
2303: if ($target eq 'meta') {
1.224 www 2304: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2305: return &Apache::response::mandatory_part_meta.
2306: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2307: } elsif ($target eq 'web' || $target eq 'grade' ||
2308: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2309: if ($hidden || !$in_order_show) {
1.326 albertel 2310: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2311: } else {
2312: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2313: push (@Apache::inputtags::status,$status);
2314: my $expression='$external::datestatus="'.$status.'";';
2315: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2316: &Apache::run::run($expression,$safeeval);
1.284 albertel 2317: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2318: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2319: }
1.216 albertel 2320: if (( $status eq 'CLOSED' ) ||
2321: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2322: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2323: ( $status eq 'BANNED') ||
2324: ( $status eq 'UNAVAILABLE') ||
2325: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2326: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2327: $style);
1.159 albertel 2328: if ( $target eq "web" ) {
1.211 albertel 2329: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2330: } elsif ( $target eq 'tex' ) {
1.284 albertel 2331: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2332: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2333: } else {
1.211 albertel 2334: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2335: }
1.159 albertel 2336: }
2337: } else {
2338: if ($target eq 'tex') {
1.284 albertel 2339: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2340: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2341: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2342: } else {
2343: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2344: }
1.195 sakharuk 2345: }
1.159 albertel 2346: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2347: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 2348: my @allkeys = split /,/,$allkeys;
2349: my $allow_print_points = 0;
2350: foreach my $partial_key (@allkeys) {
1.230 albertel 2351: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2352: if ($1 ne '0') {$allow_print_points=1;}
2353: }
2354: }
1.275 albertel 2355: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2356: if (defined($maxtries) && $maxtries < 0) {
2357: $allow_print_points=0;
2358: }
1.302 albertel 2359: if (lc($env{'course.'.$env{'request.course.id'}.
2360: '.disableexampointprint'}) eq 'yes') {
2361: $allow_print_points=0;
2362: }
1.463 foxr 2363: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2364: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2365:
2366: }
1.233 www 2367: } elsif ($target eq 'web') {
1.479 raeburn 2368: if ($status eq 'CAN_ANSWER') {
2369: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2370: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
2371: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
2372: my $num = scalar(@Apache::inputtags::partlist)-1;
2373: if ($probrandomize eq 'randomizetry') {
2374: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
2375: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2376: } else {
2377: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2378: if ($probrandtries ne $reqtries) {
2379: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2380: }
2381: }
2382: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
2383: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2384: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2385: }
2386: }
1.475 raeburn 2387: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2388: }
2389: }
2390: }
2391: } elsif ($target eq 'edit') {
2392: $result.=&Apache::edit::tag_start($target,$token);
2393: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2394: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2395: ' '.
2396: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2397: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2398: } elsif ($target eq 'modified') {
2399: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2400: $safeeval,'id','display');
1.159 albertel 2401: if ($constructtag) {
1.225 albertel 2402: #limiting ids to only letters numbers, and space
1.224 www 2403: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2404: $result = &Apache::edit::rebuild_tag($token);
2405: }
2406: }
2407: return $result;
1.11 albertel 2408: }
2409:
2410: sub end_part {
1.159 albertel 2411: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2412: &Apache::lonxml::debug("in end_part $target ");
2413: my $status=$Apache::inputtags::status['-1'];
2414: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2415: my $in_order_show=&ordered_show_check();
1.321 albertel 2416: my $result;
2417: if (!$Apache::lonxml::metamode) {
2418: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2419: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2420: }
1.312 albertel 2421: if ($target eq 'grade') {
1.249 albertel 2422: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2423: !$hidden && $in_order_show) {
1.311 foxr 2424: $result.=&Apache::inputtags::grade;
1.249 albertel 2425: } else {
2426: # move any submission data to .hidden
2427: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2428: }
1.283 albertel 2429: } elsif (($target eq 'web' || $target eq 'tex') &&
2430: !$hidden && $in_order_show) {
1.159 albertel 2431: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2432: $target);
1.490 raeburn 2433: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2434: ($env{'form.grade_imsexport'})) {
1.212 albertel 2435: $gradestatus='';
2436: }
1.311 foxr 2437: $result.=$gradestatus;
1.265 sakharuk 2438: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2439: } elsif ($target eq 'edit') {
1.311 foxr 2440: $result.=&Apache::edit::end_table();
1.322 albertel 2441: } elsif ($target eq 'modified') {
2442: $result .= $token->[2];
1.159 albertel 2443: }
2444: pop @Apache::inputtags::status;
2445: $Apache::inputtags::part='';
1.295 albertel 2446: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2447: return $result;
1.11 albertel 2448: }
1.1 albertel 2449:
1.25 albertel 2450: sub start_preduedate {
1.326 albertel 2451: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2452: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2453: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2454: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2455: if (!$Apache::lonhomework::scantronmode &&
2456: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2457: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2458: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2459: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2460: }
1.24 albertel 2461: }
1.159 albertel 2462: return '';
1.24 albertel 2463: }
2464:
1.25 albertel 2465: sub end_preduedate {
1.159 albertel 2466: return '';
1.24 albertel 2467: }
2468:
1.369 foxr 2469: # In all the modes where <postanswerdate> text is
2470: # displayable, all we do is eat up the text between the start/stop
2471: # tags if the conditions are not right to display it.
1.25 albertel 2472: sub start_postanswerdate {
1.326 albertel 2473: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2474: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2475: &Apache::lonnet::allowed('pav',
2476: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2477: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2478: $target eq 'tex' ) {
1.300 albertel 2479: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2480: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2481: (($target eq 'tex') && !$pav)) {
1.326 albertel 2482: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2483: }
2484: }
2485: return '';
1.24 albertel 2486: }
2487:
1.25 albertel 2488: sub end_postanswerdate {
1.159 albertel 2489: return '';
1.24 albertel 2490: }
2491:
1.25 albertel 2492: sub start_notsolved {
1.326 albertel 2493: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2494: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2495: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2496: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2497: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2498: if ($gradestatus =~ /^correct/ &&
2499: &Apache::response::show_answer()) {
1.159 albertel 2500: &Apache::lonxml::debug("skipping");
1.326 albertel 2501: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2502: }
1.24 albertel 2503: }
1.159 albertel 2504: return '';
1.24 albertel 2505: }
2506:
1.25 albertel 2507: sub end_notsolved {
1.159 albertel 2508: return '';
1.24 albertel 2509: }
2510:
2511: sub start_solved {
1.326 albertel 2512: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2513: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2514: $target eq 'tex') {
2515: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2516: if ($gradestatus !~ /^correct/ ||
2517: !&Apache::response::show_answer()) {
1.326 albertel 2518: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2519: }
1.24 albertel 2520: }
1.159 albertel 2521: return '';
1.24 albertel 2522: }
2523:
2524: sub end_solved {
1.248 albertel 2525: return '';
2526: }
2527:
2528: sub start_problemtype {
1.326 albertel 2529: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2530: my $result;
1.339 albertel 2531: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2532: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2533: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2534: if (!defined($mode)) { $mode='show'; }
2535: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2536: my $found=0;
2537: foreach my $type (split(',',$for)) {
2538: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2539: }
2540: if ($mode eq 'show' && !$found) {
1.326 albertel 2541: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2542: }
2543: if ($mode eq 'hide' && $found) {
1.326 albertel 2544: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2545: }
2546: } elsif ($target eq 'edit') {
2547: $result .=&Apache::edit::tag_start($target,$token);
2548: $result.=&Apache::edit::select_arg('Mode:','mode',
2549: [['show','Show'],
2550: ['hide','Hide']]
2551: ,$token);
2552: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.511 bisitz 2553: [ ['exam','Bubblesheet Exam/Quiz Problem'],
1.248 albertel 2554: ['survey','Survey'],
1.465 raeburn 2555: ['surveycred','Survey (with credit)'],
2556: ['anonsurvey','Anonymous Survey'],
2557: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2558: ['problem','Homework Problem'],
1.479 raeburn 2559: ['practice','Practice Problem'],
2560: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2561: ,$token);
2562: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2563: } elsif ($target eq 'modified') {
2564: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2565: $safeeval,'mode','for');
2566: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2567: }
2568: return $result;
2569: }
2570:
2571: sub end_problemtype {
1.159 albertel 2572: return '';
1.24 albertel 2573: }
1.34 albertel 2574:
2575: sub start_startouttext {
1.159 albertel 2576: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2577: my @result=(''.'');
2578: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2579:
2580: my $nesting =
2581: &Apache::lonxml::set_state('outtext',
2582: &Apache::lonxml::get_state('outtext')+1);
2583: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2584: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2585: }
1.159 albertel 2586: return (@result);
1.34 albertel 2587: }
1.159 albertel 2588:
1.34 albertel 2589: sub end_startouttext {
1.326 albertel 2590: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2591: my $result='';
2592: my $text='';
2593: if ($target eq 'edit') {
1.424 foxr 2594: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2595: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 2596: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 2597: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2598: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 2599: .'</span></td>'
1.515 golterma 2600: .'<td><span id="math_'.$areaid.'">'
1.474 raeburn 2601: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
1.512 bisitz 2602: .'</span></td>'
1.474 raeburn 2603: .'<td>'
2604: .&Apache::edit::insertlist($target,$token)
2605: .'</td>'
1.515 golterma 2606: .'<td class="LC_edit_problem_latexhelper">' .
1.474 raeburn 2607: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2608: &Apache::edit::end_row().
1.362 albertel 2609: &Apache::edit::start_spanning_row()."\n".
1.255 www 2610: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2611: }
2612: if ($target eq 'modified') {
1.219 albertel 2613: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2614: }
2615: if ($target eq 'tex') {
2616: $result .= '\noindent ';
2617: }
2618: return $result;
1.34 albertel 2619: }
1.159 albertel 2620:
1.34 albertel 2621: sub start_endouttext {
1.159 albertel 2622: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2623: my $result='';
2624: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2625: if ($target eq "modified") {
2626: $result='<endouttext />'.
1.377 albertel 2627: &Apache::edit::handle_insertafter('startouttext');
2628: }
1.404 albertel 2629:
2630: my $nesting =
2631: &Apache::lonxml::set_state('outtext',
2632: &Apache::lonxml::get_state('outtext')-1);
2633: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2634: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2635: &Apache::lonxml::set_state('outtext', 0);
2636: }
1.159 albertel 2637: return $result;
1.34 albertel 2638: }
1.159 albertel 2639:
1.34 albertel 2640: sub end_endouttext {
1.159 albertel 2641: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2642: my @result=('','');
2643: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2644: return (@result);
1.34 albertel 2645: }
1.159 albertel 2646:
1.45 albertel 2647: sub delete_startouttext {
1.326 albertel 2648: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2649: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2650: my $text=$$parser['-1']->get_text("/endouttext");
2651: my $ntoken=$$parser['-1']->get_token();
2652: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2653: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2654: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2655: # they did the last time round
2656: &Apache::lonxml::increasedepth($ntoken);
2657: &Apache::lonxml::decreasedepth($ntoken);
2658: return 1;
1.193 www 2659: }
2660:
2661: sub start_simpleeditbutton {
2662: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2663: my $result='';
1.284 albertel 2664: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2665: ($target eq 'web') &&
1.330 albertel 2666: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2667: my $url=$env{'request.noversionuri'};
1.193 www 2668: $url=~s/\?.*$//;
1.367 albertel 2669: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 2670: # Warning makes more sense and is more important on edit screen
1.442 bisitz 2671: # $result='<p class="LC_warning">'
2672: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2673: # .&Apache::loncommon::help_open_topic('Caching')
2674: # .'</p>';
1.486 www 2675: $result.=&Apache::loncommon::head_subbox(
2676: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 2677: .&Apache::lonhtmlcommon::add_item_funclist(
2678: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
2679: .&mt('Edit').'</a>')
1.486 www 2680: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 2681:
1.193 www 2682: }
2683: return $result;
2684: }
2685:
2686: sub end_simpleeditbutton {
2687: return '';
1.45 albertel 2688: }
1.34 albertel 2689:
1.428 raeburn 2690: sub practice_problem_header {
2691: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2692: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2693: '</span>';
2694: }
2695:
1.479 raeburn 2696: sub randomizetry_problem_header {
2697: my ($problemstatus,$reqtries) = @_;
2698: my ($header,$text);
2699: if ($reqtries > 1) {
2700: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
2701: if (($problemstatus eq 'no') ||
2702: ($problemstatus eq 'no_feedback_ever')) {
2703: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2704: } else {
2705: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2706: }
2707: } else {
2708: $header = &mt('New Problem Variation Each Try');
2709: if (($problemstatus eq 'no') ||
2710: ($problemstatus eq 'no_feedback_ever')) {
2711: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
2712:
2713: } else {
2714: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
2715: }
2716: }
2717: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
2718: '<span class="LC_info">'.$text.'</span><hr />';
2719: }
2720:
2721: sub randomizetry_part_header {
2722: my ($problemstatus,$reqtries,$num) = @_;
2723: my ($header,$text);
2724: if ($reqtries eq 'none') {
2725: $header = &mt('No Question Variation');
2726: $text = &mt('For this question there will no new variation after a try.');
2727: } elsif ($reqtries > 1) {
2728: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
2729: if (($problemstatus eq 'no') ||
2730: ($problemstatus eq 'no_feedback_ever')) {
2731: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2732: } else {
2733: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2734: }
2735: } else {
2736: $header = &mt('New Question Variation For Each Try');
2737: if (($problemstatus eq 'no') ||
2738: ($problemstatus eq 'no_feedback_ever')) {
2739: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
2740: } else {
2741: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
2742: }
2743: }
2744: my $output;
2745: if ($num > 1) {
2746: $output .= '<hr />';
2747: }
2748: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
2749: '<span class="LC_info">'.$text.'</span><br /><br />';
2750: return $output;
2751: }
2752:
1.1 albertel 2753: 1;
2754: __END__
1.435 jms 2755:
2756: =pod
2757:
2758: =back
2759:
2760: =cut
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