Annotation of loncom/homework/structuretags.pm, revision 1.529
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.529 ! raeburn 4: # $Id: structuretags.pm,v 1.528 2015/02/22 01:34:48 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().
1.527 golterma 228: &Apache::loncommon::colorfuleditor_js().
1.416 raeburn 229: &setmode_javascript().
1.400 albertel 230: <<'JS';
231: <script type="text/javascript">
1.483 raeburn 232: // <![CDATA[
1.494 raeburn 233: function setSubmittedPart (part,prefix) {
234: if (typeof(prefix) == 'undefined') {
235: this.document.lonhomework.submitted.value="part_"+part;
236: } else {
237: for (var i=0;i<this.document.lonhomework.elements.length;i++) {
238: if (this.document.lonhomework.elements[i].name == prefix+'submitted') {
239: this.document.lonhomework.elements[i].value="part_"+part;
240: }
241: }
242: }
1.400 albertel 243: }
244:
245: function image_response_click (which, e) {
246: init_geometry();
247: if (!e) { e = window.event; } //IE
248: var input_element = document.lonhomework.elements[which];
1.401 albertel 249: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 250: var token = token_element.value;
1.401 albertel 251: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 252: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
253: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
254: var click = x+':'+y;
255: input_element.value = click;
1.485 raeburn 256: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
1.400 albertel 257: }
1.520 raeburn 258:
259: var submithandled = 0;
1.521 raeburn 260: var keypresshandled = 0;
1.520 raeburn 261:
262: $(document).ready(function(){
1.521 raeburn 263:
264: $(document).keypress(function(event){
265: var keycode = (event.keyCode ? event.keyCode : event.which);
266: if ((keycode == '13') && (keypresshandled == 0)) {
267: if ( $( document.activeElement ).hasClass("LC_textline") ) {
268: keypresshandled = 1;
269: var idsArray = $( document.activeElement ).attr("id").split(/HWVAL_/);
270: if (idsArray.length) {
271: event.preventDefault();
272: var itemsArray = idsArray[1].split(/_/);
273: var buttonId = idsArray[0]+'submit_'+itemsArray[0];
274: $("#"+buttonId).trigger("click");
275: }
276: }
277: }
278: });
279:
1.520 raeburn 280: $(document).delegate('form :submit', 'click', function( event ) {
281: if ( $( this ).hasClass( "LC_hwk_submit" ) ) {
282: var buttonId = this.id;
283: if (submithandled == 0) {
284: submithandled = 1;
285: $( "#msg_"+buttonId ).css({"display": "inline","background-color": "#87cefa",
1.521 raeburn 286: "color": "black","padding": "2px"}) ;
287: if (( $(this.form).id == "LC_page" ) && ($('input[name="all_submit"]').length )) {
1.522 raeburn 288: if (buttonId != "all_submit") {
289: $( ".LC_status_"+buttonId ).hide();
290: if (( "#"+buttonId+"_pressed" ).length) {
291: $( "#"+buttonId+"_pressed" ).val( "1" );
292: }
1.520 raeburn 293: }
1.522 raeburn 294: } else {
295: $( ".LC_status_"+buttonId ).hide();
1.520 raeburn 296: }
297: $(this.form).submit();
1.521 raeburn 298: $( ".LC_hwk_submit" ).prop( "disabled", true);
299: $( ".LC_textline" ).prop( "readonly", "readonly");
1.520 raeburn 300: event.preventDefault();
301: return true;
302: }
303: }
304: });
305: });
306:
1.483 raeburn 307: // ]]>
1.400 albertel 308: </script>
309: JS
310: }
311:
1.416 raeburn 312: sub setmode_javascript {
313: return <<"ENDSCRIPT";
314: <script type="text/javascript">
1.485 raeburn 315: // <![CDATA[
1.416 raeburn 316: function setmode(form,probmode) {
317: form.problemmode.value = probmode;
318: form.submit();
319: }
1.485 raeburn 320: // ]]>
1.416 raeburn 321: </script>
322: ENDSCRIPT
323: }
324:
1.48 albertel 325: sub page_start {
1.345 albertel 326: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
327: $extra_head)=@_;
1.159 albertel 328: my %found;
1.207 albertel 329: foreach my $taginside (@$tagstack) {
1.159 albertel 330: foreach my $taglookedfor ('html','body','form') {
331: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
332: }
333: }
334:
1.343 albertel 335: if ($target eq 'tex') {
336: return
337: &Apache::londefdef::start_html($target,$token,$tagstack,
338: $parstack,$parser,$safeeval);
339: }
340:
1.474 raeburn 341: $extra_head .= &homework_js().
342: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
343: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
344: my %textarea_args = (
345: dragmath => 'math',
346: );
347: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 348: }
1.478 raeburn 349: my $is_task = ($env{'request.uri'} =~ /\.task$/);
1.528 raeburn 350: my ($needs_upload,$partlist);
1.495 raeburn 351: my ($symb)= &Apache::lonnet::whichuser();
352: my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
1.478 raeburn 353: if ($is_task) {
1.495 raeburn 354: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
1.493 raeburn 355: } else {
356: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.uploadedfiletypes") ne '') {
1.495 raeburn 357: unless ($env{'request.state'} eq 'construct') {
358: my $navmap = Apache::lonnavmaps::navmap->new();
359: if (ref($navmap)) {
360: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 361: my $is_page;
362: if (ref($mapres)) {
363: $is_page = $mapres->is_page();
364: }
365: unless ($is_page) {
1.495 raeburn 366: $needs_upload = 1;
367: }
1.528 raeburn 368: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
369: my $res = $navmap->getBySymb($symb);
370: if (ref($res)) {
371: $partlist = $res->parts();
372: }
373: }
1.495 raeburn 374: }
375: }
1.493 raeburn 376: } else {
377: unless ($env{'request.state'} eq 'construct') {
378: my $navmap = Apache::lonnavmaps::navmap->new();
379: if (ref($navmap)) {
1.495 raeburn 380: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 381: my $is_page;
382: if (ref($mapres)) {
383: $is_page = $mapres->is_page();
384: }
1.528 raeburn 385: if ($is_page) {
386: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
387: my $res = $navmap->getBySymb($symb);
388: if (ref($res)) {
389: $partlist = $res->parts();
390: }
391: }
392: } else {
1.495 raeburn 393: my $res = $navmap->getBySymb($symb);
394: if (ref($res)) {
1.528 raeburn 395: $partlist = $res->parts();
1.495 raeburn 396: if (ref($partlist) eq 'ARRAY') {
397: foreach my $part (@{$partlist}) {
398: my @types = $res->responseType($part);
399: my @ids = $res->responseIds($part);
400: for (my $i=0; $i < scalar(@ids); $i++) {
401: if ($types[$i] eq 'essay') {
402: my $partid = $part.'_'.$ids[$i];
403: if (&Apache::lonnet::EXT("resource.$partid.uploadedfiletypes") ne '') {
404: $needs_upload = 1;
405: last;
406: }
1.493 raeburn 407: }
408: }
409: }
1.495 raeburn 410: }
411: }
1.493 raeburn 412: }
413: }
414: }
415: }
1.495 raeburn 416: if ($needs_upload) {
417: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
418: }
1.478 raeburn 419: }
1.425 raeburn 420:
1.344 albertel 421: my %body_args;
422: if (defined($found{'html'})) {
423: $body_args{'skip_phases'}{'head'}=1;
424: } else {
1.343 albertel 425:
1.345 albertel 426: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 427:
1.379 albertel 428: $extra_head .= &Apache::londefdef::generate_css_links();
429:
1.384 albertel 430: if ($env{'request.state'} eq 'construct') {
1.343 albertel 431: $extra_head.=&Apache::edit::js_change_detection().
432: "<script type=\"text/javascript\">\n".
433: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
434: &Apache::loncommon::browser_and_searcher_javascript().
435: "\n</script>\n";
1.525 raeburn 436: if ($target eq 'edit') {
437: $extra_head .= &Apache::edit::js_update_linknum();
438: }
1.343 albertel 439: }
1.159 albertel 440: }
1.343 albertel 441:
1.446 bisitz 442: my $pageheader = '';
1.344 albertel 443: if (defined($found{'body'})) {
444: $body_args{'skip_phases'}{'body'}=1;
445: } elsif (!defined($found{'body'})
446: && $env{'request.state'} eq 'construct') {
1.343 albertel 447: if ($target eq 'web' || $target eq 'edit') {
1.513 raeburn 448: # Breadcrumbs for Authoring Space
1.450 bisitz 449: &Apache::lonhtmlcommon::clear_breadcrumbs();
450: &Apache::lonhtmlcommon::add_breadcrumb({
1.513 raeburn 451: 'text' => 'Authoring Space',
1.497 raeburn 452: 'href' => &Apache::loncommon::authorspace($env{'request.uri'}),
1.450 bisitz 453: });
1.460 droeschl 454: # breadcrumbs (and tools) will be created
455: # in start_page->bodytag->innerregister
456:
1.450 bisitz 457: # FIXME Where are we?
458: # &Apache::lonhtmlcommon::add_breadcrumb({
459: # 'text' => 'Problem Editing', # 'Problem Testing'
460: # 'href' => '',
461: # });
1.460 droeschl 462: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 463: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 464: }
1.272 albertel 465: } elsif (!defined($found{'body'})) {
1.343 albertel 466: my %add_entries;
1.159 albertel 467: my $background=&Apache::lonxml::get_param('background',$parstack,
468: $safeeval);
1.343 albertel 469: if ($background ne '' ) {
470: $add_entries{'background'} = $background;
471: }
1.344 albertel 472:
1.290 albertel 473: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
474: $safeeval);
1.446 bisitz 475: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 476:
1.446 bisitz 477: $body_args{'bgcolor'} = $bgcolor;
478: # $body_args{'no_title'} = 1;
479: $body_args{'force_register'} = 1;
480: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 481: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 482: $body_args{'only_body'} = 1;
1.518 raeburn 483: } elsif ($target eq 'web') {
484: $body_args{'print_suppress'} = 1;
1.446 bisitz 485: }
1.344 albertel 486: }
1.365 albertel 487: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 488: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
489: \%body_args);
1.446 bisitz 490: $page_start .= $pageheader;
1.462 raeburn 491: if (!defined($found{'body'})
492: && $env{'request.state'} ne 'construct'
493: && ($target eq 'web' || $target eq 'webgrade')) {
494:
495: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
496: if ($symb eq '' && !$publicuser) {
497: $page_start .= '<p class="LC_info">'
498: .&mt('Browsing resource, all submissions are temporary.')
499: .'</p>';
1.457 bisitz 500: }
1.344 albertel 501: }
502:
1.409 albertel 503: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 504: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 505: }
506: my $form_tag_start;
507: if (!defined($found{'form'})) {
1.337 albertel 508: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 509: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 510: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 511: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 512: $form_tag_start.=$uri.'" ';
513: if ($target eq 'edit') {
514: $form_tag_start.=&Apache::edit::form_change_detection();
515: }
1.493 raeburn 516: my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
517: my ($path,$multiresp) =
518: &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
1.495 raeburn 519: if (($is_task) || ($needs_upload)) {
520: $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
1.478 raeburn 521: }
1.368 albertel 522: $form_tag_start.='>'."\n";
1.355 albertel 523:
524: if ($symb =~ /\S/) {
525: $symb=
526: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
527: $form_tag_start.=
1.368 albertel 528: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 529: }
1.159 albertel 530: }
1.528 raeburn 531: return ($page_start,$form_tag_start,$partlist);
1.105 albertel 532: }
533:
1.141 matthew 534: #use Time::HiRes();
1.105 albertel 535: sub get_resource_name {
1.159 albertel 536: my ($parstack,$safeeval)=@_;
1.388 foxr 537: my $name;
1.204 albertel 538: if (defined($Apache::lonhomework::name)) {
1.388 foxr 539: $name = $Apache::lonhomework::name;
540: } else {
541: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 542: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 543: if ($name eq '') {
544: $name=&Apache::lonnet::EXT('resource.title');
545: if ($name eq 'con_lost') { $name = ''; }
546: }
547: if ($name!~/\S+/) {
548: $name=$env{'request.uri'};
549: $name=~s-.*/([^/]+)$-$1-;
550: }
551: # The name has had html tags escaped:
552:
553: $name=~s/</</gs;
554: $name=~s/>/>/gs;
555:
556: $Apache::lonhomework::name=$name;
1.204 albertel 557: }
1.159 albertel 558: return $name;
1.105 albertel 559: }
560:
561: sub setup_rndseed {
1.528 raeburn 562: my ($safeeval,$target,$probpartlist)=@_;
1.367 albertel 563: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 564: my ($questiontype,$set_safespace,$rndseed);
565: if ($target eq 'analyze') {
566: $questiontype = $env{'form.grade_questiontype'};
567: }
568: unless (defined($questiontype)) {
569: $questiontype = $Apache::lonhomework::type;
570: }
1.333 albertel 571: if ($env{'request.state'} eq "construct"
572: || $symb eq ''
573: || $Apache::lonhomework::type eq 'practice'
574: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 575: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 576: ['rndseed']);
1.284 albertel 577: $rndseed=$env{'form.rndseed'};
1.159 albertel 578: if (!$rndseed) {
1.162 albertel 579: $rndseed=$Apache::lonhomework::history{'rndseed'};
580: if (!$rndseed) {
581: $rndseed=time;
582: }
1.284 albertel 583: $env{'form.rndseed'}=$rndseed;
1.162 albertel 584: }
1.479 raeburn 585: if (($env{'request.state'} eq "construct") &&
586: ($Apache::lonhomework::type eq 'randomizetry')) {
587: my $tries = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
588: if ($tries) {
589: $rndseed += $tries;
590: }
1.480 raeburn 591: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 592: }
1.374 albertel 593: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
594: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 595: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 596: srand(time);
597: $rndseed=int(rand(2100000000));
1.284 albertel 598: $env{'form.rndseed'}=$rndseed;
599: delete($env{'form.resetdata'});
600: delete($env{'form.newrandomization'});
1.159 albertel 601: }
1.488 www 602: $rndseed=~s/\,/\:/g;
603: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 604: if (defined($rndseed)) {
605: my ($c1,$c2)=split(/\:/,$rndseed);
606: unless ($c2) { $c2=0; }
607: unless (($c1==int($c1)) && ($c2==int($c2))) {
608: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
609: }
1.187 albertel 610: }
1.247 albertel 611: if ($Apache::lonhomework::history{'resource.CODE'}) {
612: $rndseed=&Apache::lonnet::rndseed();
613: }
1.479 raeburn 614: $set_safespace = 1;
615: } elsif ($questiontype eq 'randomizetry') {
616: if ($target eq 'analyze') {
617: if (defined($env{'form.grade_rndseed'})) {
618: $rndseed = $env{'form.grade_rndseed'};
619: }
620: }
621: unless (($target eq 'analyze') && (defined($rndseed))) {
622: $rndseed=&Apache::lonnet::rndseed();
1.528 raeburn 623: my $partfortries = $Apache::inputtags::part;
624: if (ref($probpartlist) eq 'ARRAY') {
625: if ((@{$probpartlist} == 1) && ($probpartlist->[0] ne $Apache::inputtags::part)) {
626: $partfortries = $probpartlist->[0];
627: }
628: }
629: my $curr_try = $Apache::lonhomework::history{"resource.$partfortries.tries"};
1.479 raeburn 630: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
631: $curr_try ++;
632: }
633: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
634: $rndseed = $1;
635: }
636: if ($curr_try) {
1.528 raeburn 637: my $reqtries = &Apache::lonnet::EXT("resource.$partfortries.randomizeontries");
1.479 raeburn 638: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
639: my $inc = int(($curr_try-1)/$reqtries);
640: $rndseed += $inc;
641: } else {
642: $rndseed += $curr_try;
643: }
644: }
645: }
646: $set_safespace = 1;
1.528 raeburn 647: if ($target eq 'grade') {
648: $Apache::lonhomework::rawrndseed = $rndseed;
649: }
1.479 raeburn 650: }
651: if ($set_safespace) {
652: if ($safeeval) {
653: &Apache::lonxml::debug("Setting rndseed to $rndseed");
654: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
655: }
656: }
657: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
658: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 659: }
660: return $rndseed;
1.105 albertel 661: }
662:
1.268 albertel 663: sub remember_problem_state {
664: return '
1.284 albertel 665: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
666: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
667: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 668: }
669:
1.487 www 670: sub problem_edit_action_button {
671: my ($name,$action,$accesskey,$text,$flag)=@_;
672: my $actionscript="setmode(this.form,'$action')";
673: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
674: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
675: }
676:
1.423 www 677: sub problem_edit_buttons {
1.487 www 678: my ($mode)=@_;
679: # Buttons that do not save
680: my $result='<div class="LC_edit_problem_discards">'.
681: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
682: if ($mode eq 'editxml') {
683: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
684: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
685: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
686: } else {
687: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
688: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
689: }
690: $result.="\n</div>";
691: # Buttons that save
692: $result.='<div class="LC_edit_problem_saves">';
693: if ($mode eq 'editxml') {
694: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
695: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
696: } else {
697: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
698: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
699: }
700: $result.="\n</div>\n";
701: return $result;
1.423 www 702: }
703:
1.527 golterma 704: sub insert_menu_datastructure {
705:
706: my $template_menu = &template_dropdown_datastructure();
707: my $responseblock_menu = &responseblock_dropdown_datastructure();
708: my $conditional_scripting = &conditional_scripting_datastructure();
709: my $misc = &misc_datastructure();
710:
711: my @menu = ($template_menu, $responseblock_menu, $conditional_scripting, $misc);
712: return \@menu;
713:
714: }
715:
716: sub template_dropdown_datastructure {
717: # gathering the all templates and their path, title, category and help topic
718: my @templates = &Apache::lonhomework::get_template_list('problem');
719: # template category => title
720: my %tmplthash = ();
721: # template title => path
722: my %tmpltcontent = ();
723:
724: foreach my $template (@templates){
725: # put in hash if the template is not empty
726: unless ($template->[1] eq ''){
727: push(@{$tmplthash{$template->[2]}}, $template->[1]);
728: push(@{$tmpltcontent{$template->[1]}},$template->[0]);
729: }
730: }
731:
732: my $catList = [];
733: foreach my $cat (sort keys %tmplthash) {
734: my $catItems = [];
735: foreach my $title (sort @{$tmplthash{$cat}}) {
736: my $path = $tmpltcontent{$title}->[0];
737: my $code;
738: open(FH, "<$path");
739: while(<FH>){
740: $code.= $_ unless $_ =~ /(<problem>)|(<\/problem>)/;
741: }
742: close(FH);
743:
744: if ($code ne '') {
745: my $href = 'javascript:insertText(\'' . &convert_for_js(&HTML::Entities::encode($code)) . '\')';
746: my $currItem = [$href, $title, undef];
747: push @{$catItems}, $currItem;
748: }
749: }
750: push @{$catList}, [$catItems, $cat, undef];
751: }
752:
753: my $templDropdown = [$catList, &mt("Complete Problem Templates"), undef];
754: return $templDropdown;
755: }
756:
757: sub responseblock_dropdown_datastructure {
758:
759: my $mathCat = [
760: [
761: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_formularesponse())) . "\')", &mt("Formula Response"), undef],
762: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_functionplotresponse())) . "\')", &mt("Function Plot Response"), undef],
763: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_mathresponse())) . "\')", &mt("Math Response"), undef],
764: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_numericalresponse())) . "\')", &mt("Numerical Response"), undef]
765: ],
766: &mt("Math"),
767: undef
768: ];
769:
770: my $miscCat = [
771: [
772: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_imageresponse())) . "\')", &mt("Click on Image"), undef],
773: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_customresponse())) . "\')", &mt("Custom Response"), undef],
774: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_externalresponse())) . "\')", &mt("External Response"), undef],
775: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_matchresponse())) . "\')", &mt("Match Response"), undef],
776: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_radiobuttonresponse())) . "\')", &mt("One out of N Statement"), undef],
777: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_optionresponse())) . "\')", &mt("Optionresponse"), undef],
778: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_rankresponse())) . "\')", &mt("Rank Values"), undef]
779: ],
780: &mt("Misc"),
781: undef
782: ];
783:
784: my $chemCat = [
785: [
786: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_reactionresponse())) . "\')", &mt("Chemical Reaction"), undef],
787: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_organicresponse())) . "\')", &mt("Organic Structure"), undef]
788: ],
789: &mt("Chemical"),
790: undef
791: ];
792:
793: my $textCat = [
794: [
795: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_stringresponse())) . "\')", &mt("String Response"), undef],
796: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_essayresponse())) . "\')", &mt("Essay"), undef]
797: ],
798: &mt("Text"),
799: undef
800: ];
801:
802: my $cats = [[$mathCat, $miscCat, $chemCat, $textCat], &mt("Response Types"), undef];
803: return $cats;
804: }
805:
806:
807: sub conditional_scripting_datastructure {
808: # TODO: corresponding routines should be used for the javascript:insertText parts
809: # instead of the placeholder routine default_xml_tag with the tags
810: # e.g. &default_xml_tag("postanswerdate") should be replaced with a routine which
811: # returns the corresponding content for this case
812:
813: #TODO translated is currently temporarily here, another solution should be found where the
814: # needed string can be retrieved
815:
816: my $translatedTag = '
817: <translated>
818: <lang which="en"></lang>
819: <lang which="default"></lang>
820: </translated>';
821:
822: my $cat = [
823: [
824: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode($translatedTag)) . "\')", &mt("Translated Tag"), undef],
825: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("block"))) . "\')", &mt("Conditional Block"), undef],
826: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("postanswerdate"))) . "\')", &mt("After Answer Block"), undef],
827: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("preduedate"))) . "\')", &mt("Before Due Date Block"), undef],
828: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("solved"))) . "\')", &mt("Block For After Solved"), undef],
829: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("notsolved"))) . "\')", &mt("Block For When Not Solved"), undef]
830: ],
831: &mt("Contitional Scripting"),
832: undef
833: ];
834:
835: return $cat;
836: }
837:
838: sub misc_datastructure {
839:
840: my $graphicalCat = [
841: [
842: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_img())) . "\')", &mt("Image"), undef],
843: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::lonplot::insert_gnuplot())) . "\')", &mt("GNU Plot"), undef],
844: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_organicstructure())) . "\')", &mt("Organic Structure"), undef]
845: ],
846: "Graphical",
847: undef
848: ];
849:
850: my $advancedCat = [
851: [
852: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_script())) . "\')", &mt("Script Block"), undef],
853: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("allow"))) . "\')", &mt("File Dependencies"), undef],
854: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("import"))) . "\')", &mt("Import a File"), undef],
855: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::londefdef::insert_meta())) . "\')", &mt("Custom Metadata"), undef]
856: ],
857: "advanced",
858: undef
859: ];
860:
861: my $cats = [[$graphicalCat, $advancedCat], &mt("misc"), undef];
862: return $cats;
863: }
864:
865: # helper routine for the datastructure building subroutines
866: sub default_xml_tag {
867: my ($tag) = @_;
868: return "\n<$tag></$tag>";
869: }
870:
871:
872: sub helpmenu_datastructure {
873:
874: my $width = 500;
875: my $height = 600;
876:
877: my $helpers = [
878: ['Problem_LON-CAPA_Functions', &mt('Script Functions')],
879: ['Greek_Symbols', &mt('Greek Symbols')],
880: ['Other_Symbols', &mt('Other Symbols')],
881: ['Authoring_Output_Tags', &mt('Output Tags')],
882: ['Authoring_Multilingual_Problems',
883: &mt('How to create problems in different languages')]
884: ];
885:
886: my $help_structure = [];
887:
888: foreach my $count (0..(scalar(@{$helpers})-1)) {
889: my $filename = $helpers->[$count]->[0];
890: my $title = $helpers->[$count]->[1];
891: my $href = &HTML::Entities::encode("javascript:openMyModal('/adm/help/$filename.hlp',$width,$height,'yes');");
892: push @{$help_structure}, [$href, $title, undef];
893: }
894:
895: return $help_structure;
896: }
897:
898: # we need substitution to not break javascript code
899: sub convert_for_js {
900: my $return = shift;
901: $return =~ s|script|ESCAPEDSCRIPT|g;
902: $return =~ s|\n|\\r\\n|g;
903: $return =~ s|'|\\'|g;
904: $return =~ s|'|\\'|g;
905: return $return;
906: }
907:
1.423 www 908: sub problem_edit_header {
1.527 golterma 909: my ($mode)=@_;
910: my $return = '<input type="hidden" name="submitted" value="edit" />'.
1.487 www 911: &remember_problem_state('edit').'
1.527 golterma 912: <div class="LC_edit_problem_header">
913: <div class="LC_edit_problem_header_title">
914: '.&mt('Problem Editing').$mode.&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
915: </div><div class="LC_edit_actionbar" id="actionbar">'.
916: '<input type="hidden" name="problemmode" value="saveedit" />'.
917: &problem_edit_buttons();
918:
919: $return.='<hr style="clear:both;visibility:hidden;" />
920: </div></div>'
921: .&Apache::lonxml::message_location();
922: $return .= '<link rel="stylesheet" href="/adm/codemirror/codemirror-combined.css" />
923: <script type="text/javascript" src="/adm/codemirror/codemirror-compressed-colorful.js"></script>';
924:
925: $return .= '<script type="text/javascript" src="/adm/jQuery/addons/jquery-scrolltofixed.js"></script>
926: <script type="text/javascript">
927: // unless internet explorer
928: if (!(window.navigator.appName == "Microsoft Internet Explorer" && (document.documentMode || document.compatMode))){
929: $(document).ready(
930: function() {
931: $(\'.LC_edit_actionbar\').scrollToFixed(
932: {
933: fixed: function(){
934: $(this).find(\'.LC_edit_actionbar\').css(\'height\', \'31px\');
935: }
936: }
937: );
938: }
939: );
940: }
941: </script>
942: <table id="LC_edit_problem_colorful" border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
943: return $return;
1.105 albertel 944: }
945:
946: sub problem_edit_footer {
1.527 golterma 947: my $resource = $env{'request.ambiguous'};
1.412 albertel 948: return '</td></tr></table><br />
949: <div class="LC_edit_problem_footer">
1.453 bisitz 950: <hr />'.
1.423 www 951: &problem_edit_buttons().'
1.459 bisitz 952: <hr style="clear:both;" />
1.527 golterma 953: <script type="text/javascript">
954: restoreState("'.$resource.'");
955: restoreScrollPosition("'.$resource.'");
956: </script>
1.412 albertel 957: </div>
958: '.
1.342 albertel 959: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 960: }
961:
1.235 albertel 962: sub option {
963: my ($value,$name) = @_;
964: my $result ="<option value='".$value."' ";
1.284 albertel 965: if ($env{'form.'.$name} eq $value) {
1.235 albertel 966: $result.=" selected='on' ";
967: }
968: $result.='>';
969: return $result;
970: }
971:
1.105 albertel 972: sub problem_web_to_edit_header {
1.159 albertel 973: my ($rndseed)=@_;
1.406 albertel 974: my $result .= '<div class="LC_edit_problem_header">';
975:
976: if (!$Apache::lonhomework::parsing_a_task) {
977: $result .=
978: '<div class="LC_edit_problem_header_title">'.
979: &mt('Problem Testing').
980: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
981: '</div>';
982: } else {
983: $result .=
984: '<div class="LC_edit_problem_header_title">'.
985: &mt('Task Testing').
986: '</div>';
987: }
988:
1.315 albertel 989: my $show_all_foils_text =
990: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 991: &mt('Show All Instances')
992: : &mt('Show All Foils');
1.315 albertel 993:
1.452 bisitz 994: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
995: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 996: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 997: $show_all.= ' /> '.$show_all_foils_text
998: .'</label></span>';
1.406 albertel 999:
1000:
1.384 albertel 1001:
1.406 albertel 1002: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 1003: if (!$Apache::lonhomework::parsing_a_task) {
1004: $result.="
1.406 albertel 1005: <div class='LC_edit_problem_header_row1'>
1006: <span class=\"LC_nobreak\">
1.405 albertel 1007: ".&mt("Problem Status:")."
1.235 albertel 1008: <select name='problemstate'>
1.270 albertel 1009: <option value=''></option>
1.235 albertel 1010: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
1011: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
1012: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
1013: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
1014: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
1015: </select>
1.406 albertel 1016: </span>
1017: <span class=\"LC_nobreak\">
1.405 albertel 1018: ".&mt("Problem Type:")."
1.235 albertel 1019: <select name='problemtype'>
1.270 albertel 1020: <option value=''></option>
1.509 bisitz 1021: ".&option('exam' ,'problemtype').&mt("Bubblesheet Exam Problem")."</option>
1.428 raeburn 1022: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 1023: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 1024: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
1025: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
1026: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 1027: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 1028: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 1029: </select>
1.406 albertel 1030: </span>
1031: $show_all
1032: </div>
1033: <div class='LC_edit_problem_header_row2'>
1034: <span class=\"LC_nobreak\">
1.405 albertel 1035: ".&mt("Feedback Mode:")."
1.235 albertel 1036: <select name='problemstatus'>
1037: <option value=''></option>
1.242 albertel 1038: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.517 bisitz 1039: ".&option('no', 'problemstatus').&mt("Don't Show Incorrect/Correct Feedback")."</option>
1.405 albertel 1040: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 1041: </select>
1.406 albertel 1042: </span>
1043: ";
1044:
1.376 albertel 1045: } elsif ($Apache::lonhomework::parsing_a_task) {
1046: $result.="
1.406 albertel 1047: <div class='LC_edit_problem_header_row1'>
1048: <span class=\"LC_nobreak\">
1.405 albertel 1049: ".&mt("Problem Status:")."
1.376 albertel 1050: <select name='problemstate'>
1051: <option value=''></option>
1052: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
1053: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
1054: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
1055: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
1056: </select>
1.406 albertel 1057: </span>
1058: $show_all
1059: ";
1060: }
1061: $result.='
1062: <span class="LC_nobreak">
1063: '.&mt('Apply style file: ').'
1064: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
1065: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
1066: </span>
1.422 www 1067: </div>
1068: <div class="LC_edit_problem_header_row1">'.
1069: &Apache::lonxml::renderingoptions().'
1.406 albertel 1070: </div>
1071: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
1072: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
1073: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
1074: </div>
1.453 bisitz 1075: <hr />
1.406 albertel 1076: <div class="LC_edit_problem_header_randomize_row">
1077: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
1078: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 1079: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 1080: $rndseed.'"
1081: onchange="javascript:document.lonhomework.changerandseed.click()" />';
1082:
1083: if (!$Apache::lonhomework::parsing_a_task) {
1084: my $numtoanalyze=$env{'form.numtoanalyze'};
1085: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 1086: $result .= '<span class="LC_nobreak">'.
1087: &mt('[_1] for [_2] versions.',
1.416 raeburn 1088: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 1089: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
1090: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 1091: $numtoanalyze.'" size="5" />').
1092: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
1093: '</span>';
1094:
1.313 albertel 1095: }
1.406 albertel 1096:
1097: $result.='
1098: </div>
1.453 bisitz 1099: <hr />
1.447 bisitz 1100: <div>';
1.416 raeburn 1101: $result.='<input type="hidden" name="problemmode" value="view" />';
1102: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
1103: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
1104: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
1105: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 1106: $result.='
1107: </div>
1.453 bisitz 1108: <hr />
1.409 albertel 1109: '.&Apache::lonxml::message_location().'
1.406 albertel 1110: </div>';
1.159 albertel 1111: return $result;
1.48 albertel 1112: }
1113:
1.65 albertel 1114: sub initialize_storage {
1.357 albertel 1115: my ($given_symb) = @_;
1.353 albertel 1116: undef(%Apache::lonhomework::results);
1117: undef(%Apache::lonhomework::history);
1.357 albertel 1118: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1119: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 1120:
1121: # anonymous users (CODEd exams) have no data
1122: if ($name eq 'anonymous'
1123: && !defined($domain)) {
1124: return;
1125: }
1126:
1.333 albertel 1127: if ($env{'request.state'} eq 'construct'
1128: || $symb eq ''
1129: || $Apache::lonhomework::type eq 'practice') {
1130:
1131: my $namespace = $symb || $env{'request.uri'};
1132: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 1133: ($env{'form.resetdata'} eq &mt('New Problem Variation')
1134: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 1135: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1136: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
1137: &Apache::lonxml::debug("Attempt reset");
1138: }
1.159 albertel 1139: %Apache::lonhomework::history=
1.333 albertel 1140: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.526 raeburn 1141: my ($temp)=keys(%Apache::lonhomework::history) ;
1.159 albertel 1142: &Apache::lonxml::debug("Return message of $temp");
1143: } else {
1144: %Apache::lonhomework::history=
1145: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1146: }
1.353 albertel 1147:
1.159 albertel 1148: #ignore error conditions
1.526 raeburn 1149: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1150: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 1151: }
1152:
1.435 jms 1153: =pod
1154:
1155: =item finalize_storage()
1156:
1.524 raeburn 1157: Stores away the result hash to a student's environment;
1.523 raeburn 1158: checks form.grade_ for specific values, otherwise stores
1159: to the running user's environment.
1.524 raeburn 1160:
1161: &check_correctness_changes() is called in two circumstances
1162: in which the results hash is to be stored permanently, for
1163: grading triggered by a student's submission, where feedback on
1164: correctness is to be provided to the student.
1165:
1166: 1. Immediately prior to storing the results hash
1167:
1168: To handle the case where a student's submission (and award) were
1169: stored after history was retrieved in &initialize_storage(), e.g.,
1170: if a student submitted answers in quick succession (e.g., from
1171: multiple tabs). &Apache::inputtags::hidealldata() is called for
1172: any parts with out-of-order storage (i.e., correct then incorrect,
1173: where awarded >= 1 when correct).
1174:
1175: 2. Immediately after storing the results hash
1176:
1177: To handle the case where lond on the student's homeserver returns
1178: delay:N -- where N is the number of transactions between the last
1179: retrieved in &initialize_storage() and the last stored immediately
1180: before permanent storage of the current transaction via
1181: lond::store_handler(). &Apache::grades::makehidden() is called
1182: for any parts with out-of-order storage (i.e., correct then incorrect,
1183: where awarded >= 1 when correct).
1184:
1185: Will call &store_aggregates() to increment totals for attempts,
1186: students, and corrects, if running user has student role.
1187:
1.435 jms 1188: =cut
1189:
1190:
1.65 albertel 1191: sub finalize_storage {
1.357 albertel 1192: my ($given_symb) = @_;
1.159 albertel 1193: my $result;
1.289 albertel 1194: if (%Apache::lonhomework::results) {
1.323 albertel 1195: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
1196: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 1197: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1198: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 1199: if ($env{'request.state'} eq 'construct'
1200: || $symb eq ''
1201: || $Apache::lonhomework::type eq 'practice') {
1202: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 1203: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 1204: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 1205: $namespace,'',$domain,$name);
1.159 albertel 1206: &Apache::lonxml::debug('Construct Store return message:'.$result);
1207: } else {
1.524 raeburn 1208: my ($laststore,$checkedparts,@parts,%postcorrect);
1209: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1210: (!$Apache::lonhomework::scantronmode) && (!defined($env{'form.grade_symb'})) &&
1211: (!defined($env{'form.grade_courseid'}))) {
1212: if ($Apache::lonhomework::history{'version'}) {
1213: $laststore = $Apache::lonhomework::history{'version'}.'='.
1214: $Apache::lonhomework::history{'timestamp'};
1215: } else {
1216: $laststore = '0=0';
1217: }
1218: my %record = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1219: if ($record{'version'}) {
1220: my ($newversion,$oldversion,$oldtimestamp);
1221: if ($Apache::lonhomework::history{'version'}) {
1222: $oldversion = $Apache::lonhomework::history{'version'};
1223: $oldtimestamp = $Apache::lonhomework::history{'timestamp'};
1224: } else {
1225: $oldversion = 0;
1226: $oldtimestamp = 0;
1227: }
1228: if ($record{'version'} > $oldversion) {
1229: if ($record{'timestamp'} >= $oldtimestamp) {
1230: $laststore = $record{'version'}.'='.$record{'timestamp'};
1231: $newversion = $record{'version'} + 1;
1232: $checkedparts = 1;
1233: foreach my $key (keys(%Apache::lonhomework::results)) {
1234: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1235: my $part = $1;
1236: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1237: push(@parts,$part);
1238: }
1239: }
1240: }
1241: if (@parts) {
1242: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1243: \%record,\@parts,$newversion,
1244: $oldversion);
1245: if (@parts_to_hide) {
1246: foreach my $part (@parts_to_hide) {
1247: $postcorrect{$part} = 1;
1248: &Apache::inputtags::hidealldata($part);
1249: }
1250: }
1251: }
1252: }
1253: }
1254: }
1255: }
1.159 albertel 1256: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
1.524 raeburn 1257: $symb,$courseid,$domain,$name,$laststore);
1258: if ($result =~ /^delay\:(\d+)$/) {
1259: my $numtrans = $1;
1260: my ($oldversion) = split(/=/,$laststore);
1261: if ($numtrans) {
1262: my $newversion = $oldversion + 1 + $numtrans;
1263: my @possparts;
1264: if ($checkedparts) {
1265: foreach my $part (@parts) {
1266: unless ($postcorrect{$part}) {
1267: push(@possparts,$part);
1268: }
1269: }
1270: } else {
1271: foreach my $key (keys(%Apache::lonhomework::results)) {
1272: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1273: my $part = $1;
1274: unless ($postcorrect{$part}) {
1275: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1276: push(@possparts,$part);
1277: }
1278: }
1279: }
1280: }
1281: }
1282: if (@possparts) {
1283: my %newrecord = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1284: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1285: \%newrecord,\@possparts,$newversion,
1286: $oldversion);
1287: if (@parts_to_hide) {
1288: my $partslist = join(',',@parts_to_hide);
1289: &Apache::grades::makehidden($newversion,$partslist,\%newrecord,$symb,$domain,$name,1);
1290: }
1291: }
1292: }
1293: }
1.159 albertel 1294: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 1295: &store_aggregates($symb,$courseid);
1.159 albertel 1296: }
1.323 albertel 1297: } else {
1298: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 1299: }
1.159 albertel 1300: return $result;
1.65 albertel 1301: }
1302:
1.435 jms 1303: =pod
1304:
1.524 raeburn 1305: =item check_correctness_changes()
1306:
1307: For all parts for which current results contain a solved status
1308: of "incorrect_attempted", check if there was a transaction in which
1309: solved was set to "correct_by_student" in the time since the last
1310: transaction (retrieved when &initialize_storage() was called i.e.,
1311: when &start_problem() was called), unless:
1312: (a) questiontype parameter is set to survey or anonymous survey (+/- credit)
1313: (b) problemstatus is set to no or no_feedback_ever
1314: If such a transaction exists, and did not occur after "reset status"
1315: by a user with grading privileges, then the current transaction is an
1316: example of an out-of-order transaction (i.e., incorrect occurring after
1317: correct). Accordingly, the current transaction should be hidden.
1318:
1319: =cut
1320:
1321:
1322: sub check_correctness_changes {
1323: my ($symb,$courseid,$domain,$name,$record,$parts,$newversion,$oldversion) = @_;
1324: my @parts_to_hide;
1325: unless ((ref($record) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
1326: return @parts_to_hide;
1327: }
1328: if (@{$parts}) {
1329: my $usec;
1330: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1331: ($env{'request.course.id'} eq $courseid)) {
1332: $usec = $env{'request.course.sec'};
1333: } else {
1334: $usec = &Apache::lonnet::getsection($domain,$name,$courseid);
1335: }
1336: foreach my $id (@{$parts}) {
1337: next if (($Apache::lonhomework::results{'resource.'.$id.'.type'} =~ /survey/) ||
1338: (&Apache::lonnet::EXT("resource.$id.problemstatus",$symb,
1339: $domain,$name,$usec,undef,$courseid) =~ /^no/));
1340: my $reset;
1341: for (my $i=$newversion-1; $i>=$oldversion; $i--) {
1342: if (($record->{$i.':resource.'.$id.'.regrader'}) &&
1343: ($record->{$i.':resource.'.$id.'.tries'} eq '') &&
1344: ($record->{$i.':resource.'.$id.'.award'} eq '')) {
1345: $reset = 1;
1346: } elsif (($record->{$i.":resource.$id.solved"} eq 'correct_by_student') &&
1347: ($record->{$i.":resource.$id.awarded"} >= 1)) {
1348: unless ($reset) {
1349: push(@parts_to_hide,$id);
1350: last;
1351: }
1352: }
1353: }
1354: }
1355: }
1356: return @parts_to_hide;
1357: }
1358:
1359: =pod
1360:
1.435 jms 1361: item store_aggregates()
1362:
1363: Sends hash of values to be incremented in nohist_resourcetracker.db
1364: for the course. Increments total number of attempts, unique students
1365: and corrects for each part for an instance of a problem, as appropriate.
1366:
1367: =cut
1368:
1.285 raeburn 1369: sub store_aggregates {
1370: my ($symb,$courseid) = @_;
1.479 raeburn 1371: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 1372: my @parts;
1.288 albertel 1373: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
1374: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 1375: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 1376: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 1377: push(@parts, $1);
1.285 raeburn 1378: }
1379: }
1.286 albertel 1380: foreach my $part (@parts) {
1.470 raeburn 1381: if ($env{'request.role'} =~/^st/) {
1382: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
1383: eq 'APPROX_ANS' ||
1384: $Apache::lonhomework::results{'resource.'.$part.'.award'}
1385: eq 'EXACT_ANS') {
1386: $aggregate{$symb."\0".$part."\0correct"} = 1;
1387: }
1388: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1389: $aggregate{$symb."\0".$part."\0users"} = 1;
1390: } else {
1391: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1392: if ($last_reset) {
1393: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1394: $aggregate{$symb."\0".$part."\0users"} = 1;
1395: }
1396: }
1397: }
1398: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 1399: }
1.470 raeburn 1400: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 1401: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
1402: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
1403: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
1404: $randtrycounter{$symb."\0".$part} = 1;
1405: } else {
1406: $anoncounter{$symb."\0".$part} = 1;
1407: }
1.470 raeburn 1408: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
1409: if ($needsrelease) {
1410: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
1411: if ($curr_required eq '') {
1.471 raeburn 1412: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1413: } else {
1414: my ($currmajor,$currminor) = split(/\./,$curr_required);
1415: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
1416: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 1417: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1418: }
1.292 raeburn 1419: }
1420: }
1.285 raeburn 1421: }
1422: }
1.526 raeburn 1423: if (keys(%aggregate) > 0) {
1.289 albertel 1424: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 1425: $cdomain,$cname);
1426: }
1.472 raeburn 1427: if (keys(%anoncounter) > 0) {
1.481 raeburn 1428: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
1429: $cdomain,$cname);
1.472 raeburn 1430: }
1.479 raeburn 1431: if (keys(%randtrycounter) > 0) {
1.481 raeburn 1432: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
1433: $cdomain,$cname);
1.479 raeburn 1434: }
1.292 raeburn 1435: }
1.289 albertel 1436:
1.65 albertel 1437: sub checkout_msg {
1.211 albertel 1438: my %lt=&Apache::lonlocal::texthash(
1439: 'resource'=>'The resource needs to be checked out',
1440: '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.',
1441: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
1.509 bisitz 1442: 'checkout'=>'Check out Bubblesheet Exam for Viewing',
1443: 'checkout?'=>'Check out Bubblesheet Exam?');
1.352 albertel 1444: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 1445: return (<<ENDCHECKOUT);
1.211 albertel 1446: <h2>$lt{'resource'}</h2>
1447: <p>$lt{'id_expln'}</p>
1.449 bisitz 1448: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 1449: <form name="checkout" method="post" action="$uri">
1.91 albertel 1450: <input type="hidden" name="doescheckout" value="yes" />
1.514 bisitz 1451: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onclick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 1452: </form>
1453: ENDCHECKOUT
1454: }
1455:
1.252 albertel 1456: sub firstaccess_msg {
1.253 albertel 1457: my ($time,$symb)=@_;
1.414 albertel 1458: my $result;
1459: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1460: if ($interval[1] eq 'map') {
1461: my ($map)=&Apache::lonnet::decode_symb($symb);
1462: my $foldertitle=&Apache::lonnet::gettitle($map);
1463:
1464: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 1465: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
1466: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1467: ,$foldertitle,$time)."</p>";
1.414 albertel 1468: } elsif ($interval[1] eq 'course') {
1469: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 1470: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 1471: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 1472: ,$course,$time)."</p>";
1.414 albertel 1473: } else {
1474: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1475: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1476: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1477: ,$title,$time)."</p>";
1.414 albertel 1478: }
1.352 albertel 1479: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1480: my $buttontext = &mt('Show Resource');
1481: my $timertext = &mt('Start Timer?');
1.414 albertel 1482: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1483: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1484: <input type="hidden" name="markaccess" value="yes" />
1.514 bisitz 1485: <input type="button" name="accessbutton" value="$buttontext" onclick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1486: </form>
1487: ENDCHECKOUT
1.414 albertel 1488: return $result;
1.252 albertel 1489: }
1490:
1.204 albertel 1491: sub init_problem_globals {
1492: my ($type)=@_;
1493: #initialize globals
1.308 foxr 1494: # For problems, we start out in part 0 (outside a <part> tag).
1495: # and part 0 is used to describe the main body of the <problem>
1496: #
1.204 albertel 1497: if ($type eq 'problem') {
1498: $Apache::inputtags::part='0';
1499: @Apache::inputtags::partlist=('0');
1.405 albertel 1500: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1501: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1502:
1.266 albertel 1503: } elsif ($type eq 'library') {
1.204 albertel 1504: $Apache::inputtags::part='';
1505: @Apache::inputtags::partlist=();
1.405 albertel 1506: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1507: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1508:
1.304 albertel 1509: } elsif ($type eq 'Task') {
1510: $Apache::inputtags::part='0';
1511: @Apache::inputtags::partlist=('0');
1.405 albertel 1512: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1513: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1514: }
1.477 www 1515: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1516: @Apache::inputtags::responselist = ();
1517: @Apache::inputtags::importlist = ();
1518: @Apache::inputtags::previous=();
1519: @Apache::inputtags::previous_version=();
1520: $Apache::structuretags::printanswer='No';
1521: @Apache::structuretags::whileconds=();
1522: @Apache::structuretags::whilebody=();
1523: @Apache::structuretags::whileline=();
1524: $Apache::lonhomework::scantronmode=0;
1525: undef($Apache::lonhomework::name);
1.358 albertel 1526: undef($Apache::lonhomework::default_type);
1527: undef($Apache::lonhomework::type);
1.204 albertel 1528: }
1529:
1530: sub reset_problem_globals {
1531: my ($type)=@_;
1532: undef(%Apache::lonhomework::history);
1533: undef(%Apache::lonhomework::results);
1534: undef($Apache::inputtags::part);
1.498 raeburn 1535: if ($type eq 'Task') {
1536: undef($Apache::inputtags::slot_name);
1.528 raeburn 1537: } elsif ($type eq 'problem') {
1538: undef($Apache::lonhomework::rawrndseed);
1.498 raeburn 1539: }
1.208 albertel 1540: #don't undef this, lonhomework.pm takes care of this, we use this to
1541: #detect if we try to do 2 problems in one file
1542: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1543: undef($Apache::lonhomework::name);
1.358 albertel 1544: undef($Apache::lonhomework::default_type);
1545: undef($Apache::lonhomework::type);
1546: undef($Apache::lonhomework::scantronmode);
1547: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1548: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1549: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1550: }
1551:
1.241 albertel 1552: sub set_problem_state {
1.240 albertel 1553: my ($part)=@_;
1.284 albertel 1554: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1555: $Apache::lonhomework::history{"resource.$part.solved"}=
1556: 'correct_by_student';
1557: }
1558: }
1559:
1.241 albertel 1560: sub get_problem_status {
1561: my ($part)=@_;
1.267 albertel 1562: my $problem_status;
1.284 albertel 1563: if ($env{'request.state'} eq 'construct' &&
1564: defined($env{'form.problemstatus'})) {
1565: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1566: } else {
1567: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1568: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1569: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1570: }
1571: return $problem_status;
1572: }
1573:
1.9 albertel 1574: sub start_problem {
1.326 albertel 1575: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1576:
1.311 foxr 1577: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1578: if (!$Apache::lonxml::metamode) {
1579: &Apache::lonxml::startredirection();
1580: }
1.311 foxr 1581:
1.308 foxr 1582: # Problems don't nest and we don't allow more than one <problem> in
1583: # a .problem file.
1584: #
1.184 albertel 1585: if ( $Apache::inputtags::part ne '' ||
1586: $Apache::lonhomework::parsing_a_problem) {
1587: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1588: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1589: return '';
1590: }
1.184 albertel 1591:
1592: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1593: &init_problem_globals('problem');
1.166 albertel 1594:
1.284 albertel 1595: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1596: $Apache::lonhomework::scantronmode=1;
1597: }
1.161 albertel 1598:
1.159 albertel 1599: if ($target ne 'analyze') {
1.415 raeburn 1600: my $type = &Apache::lonnet::EXT('resource.0.type');
1601: $Apache::lonhomework::type=$type;
1.284 albertel 1602: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1603: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1604: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1605: }
1.332 albertel 1606: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1607: }
1.164 albertel 1608: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1609: my $uri=$env{'request.uri'};
1.159 albertel 1610: if ($uri=~/\.(\w+)$/) {
1611: $Apache::lonhomework::type=$1;
1612: &Apache::lonxml::debug("Using type of $1");
1613: } else {
1614: $Apache::lonhomework::type='problem';
1615: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1616: }
1.87 albertel 1617: }
1.301 albertel 1618: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1619:
1.363 albertel 1620: &initialize_storage();
1.389 albertel 1621: if ($target ne 'analyze'
1622: && $env{'request.state'} eq 'construct') {
1623: &set_problem_state('0');
1624: }
1625:
1.366 albertel 1626: if ($target eq 'web') {
1627: &Apache::lonxml::debug(" grading history ");
1628: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1629: }
1.363 albertel 1630:
1.159 albertel 1631: #added vars to the scripting enviroment
1.213 albertel 1632: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1633: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1634: &Apache::run::run($expression,$safeeval);
1.159 albertel 1635: my $status;
1636: my $accessmsg;
1.508 raeburn 1637: my $resource_due;
1.159 albertel 1638:
1.343 albertel 1639: my $name= &get_resource_name($parstack,$safeeval);
1.528 raeburn 1640: my ($result,$form_tag_start,$slot_name,$slot,$probpartlist);
1.506 raeburn 1641:
1642: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1643: $target eq 'tex') {
1644: if ($env{'form.markaccess'}) {
1645: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1.519 raeburn 1646: &Apache::lonnet::set_first_access($interval[1],$interval[0]);
1.506 raeburn 1647: }
1648:
1649: ($status,$accessmsg,$slot_name,$slot) =
1650: &Apache::lonhomework::check_slot_access('0','problem');
1651: push (@Apache::inputtags::status,$status);
1652: }
1653:
1.354 albertel 1654: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1655: || $target eq 'edit') {
1.528 raeburn 1656: ($result,$form_tag_start,$probpartlist) =
1.350 albertel 1657: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1658: $name);
1.528 raeburn 1659: } elsif (($target eq 'grade') && ($Apache::lonhomework::type eq 'randomizetry')) {
1660: my ($symb)= &Apache::lonnet::whichuser();
1661: my $navmap = Apache::lonnavmaps::navmap->new();
1662: if (ref($navmap)) {
1663: my $res = $navmap->getBySymb($symb);
1664: if (ref($res)) {
1665: $probpartlist = $res->parts();
1666: }
1667: }
1.350 albertel 1668: }
1669:
1.284 albertel 1670: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1671:
1.479 raeburn 1672: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1673: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1674: $target eq 'tex') {
1.479 raeburn 1675:
1.159 albertel 1676: #handle rand seed in construction space
1.528 raeburn 1677: my $rndseed=&setup_rndseed($safeeval,$target,$probpartlist);
1678: if (($target eq 'grade') && &Apache::response::submitted()) {
1679: if ($Apache::lonhomework::type eq 'randomizetry') {
1.529 ! raeburn 1680: $Apache::lonhomework::results{'resource.0.rndseed'}=$rndseed;
1.528 raeburn 1681: } else {
1682: my @parts;
1683: if (ref($probpartlist) eq 'ARRAY') {
1684: @parts = @{$probpartlist};
1685: }
1686: unless (@parts) {
1.529 ! raeburn 1687: $Apache::lonhomework::results{'resource.0.rndseed'}=$Apache::lonhomework::rawrndseed;
1.528 raeburn 1688: }
1689: }
1690: }
1.367 albertel 1691: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 1692:
1.333 albertel 1693: if ($env{'request.state'} ne "construct" &&
1694: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1695: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1696: $rndseed.'" />'.
1697: '<input type="submit" name="resetdata"
1698: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1699: if (exists($env{'form.username'})) {
1700: $form_tag_start.=
1.164 albertel 1701: '<input type="hidden" name="username"
1.284 albertel 1702: value="'.$env{'form.username'}.'" />';
1.334 albertel 1703: }
1.462 raeburn 1704: if ($env{'request.role.adv'}) {
1705: $form_tag_start.= ' <label class="LC_nobreak">'
1706: .'<input type="checkbox" name="showallfoils"';
1707: if (defined($env{'form.showallfoils'})) {
1708: $form_tag_start.=' checked="checked"';
1709: }
1710: $form_tag_start.= ' /> '
1711: .&mt('Show All Foils')
1712: .'</label>';
1713: }
1.417 www 1714: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1715: $form_tag_start.=&practice_problem_header();
1.417 www 1716: }
1.462 raeburn 1717: $form_tag_start.='<hr />';
1.479 raeburn 1718: } elsif (($env{'request.state'} ne "construct") &&
1719: ($Apache::lonhomework::type eq 'randomizetry') &&
1720: ($status eq 'CAN_ANSWER')) {
1721: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1722: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1723: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1724: }
1.324 albertel 1725:
1.159 albertel 1726: my $expression='$external::datestatus="'.$status.'";';
1727: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1728: &Apache::run::run($expression,$safeeval);
1729: &Apache::lonxml::debug("Got $status");
1.324 albertel 1730:
1.159 albertel 1731: if (( $status eq 'CLOSED' ) ||
1732: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1733: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1734: ( $status eq 'BANNED') ||
1.216 albertel 1735: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1736: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1737: ( $status eq 'NOTRESERVABLE') ||
1738: ( $status eq 'RESERVABLE') ||
1739: ( $status eq 'RESERVABLE_LATER') ||
1.216 albertel 1740: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1741: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1742: $style);
1.159 albertel 1743: if ( $target eq "web" ) {
1.343 albertel 1744: my $msg;
1.159 albertel 1745: if ($status eq 'UNAVAILABLE') {
1.504 golterma 1746: $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1.441 raeburn 1747: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.504 golterma 1748: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1.499 raeburn 1749: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1750: ($status eq 'NOTRESERVABLE')) {
1.504 golterma 1751: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1.253 albertel 1752: } elsif ($status ne 'NOT_YET_VIEWED') {
1.504 golterma 1753: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1.499 raeburn 1754: }
1.216 albertel 1755: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1756: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1757: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1758: $msg.=&checkout_msg();
1.252 albertel 1759: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1760: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1761: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1762: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.499 raeburn 1763: } elsif ($status eq 'RESERVABLE') {
1764: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1765: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1766: '<br />'.
1767: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1768: } elsif ($status eq 'RESERVABLE_LATER') {
1769: $msg.=&mt('Window to make a reservation will open [_1].',
1770: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1771: } elsif ($status eq 'NOTRESERVABLE') {
1772: $msg.=&mt('Not available to make a reservation.');
1.159 albertel 1773: }
1774: $result.=$msg.'<br />';
1775: } elsif ($target eq 'tex') {
1.332 albertel 1776: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1777: : '\begin{minipage}{\textwidth}';
1.443 foxr 1778: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1779: $startminipage.'\vskip 0 mm';
1.159 albertel 1780: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1781: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1782: } else {
1.211 albertel 1783: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1784: }
1785: }
1.324 albertel 1786: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1787: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1788: $style);
1.324 albertel 1789: if ($target eq 'web') {
1.375 albertel 1790: $result .=
1791: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1792: } elsif ($target eq 'grade') {
1793: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1794: 'problem');
1795: }
1.159 albertel 1796: } elsif ($target eq 'web') {
1.508 raeburn 1797: if ($status eq 'CAN_ANSWER') {
1798: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1799: if ($slot_name ne '') {
1800: my $checked_in =
1801: $Apache::lonhomework::history{'resource.0.checkedin'};
1802: if ($checked_in eq '') {
1803: # unproctored slot access, self checkin
1804: &Apache::bridgetask::check_in('problem',undef,undef,
1805: $slot_name);
1806: $checked_in =
1807: $Apache::lonhomework::results{"resource.0.checkedin"};
1808: }
1809: if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1810: if ($slot->{'starttime'} < time()) {
1811: if (!$resource_due) {
1812: $resource_due = $slot->{'endtime'};
1813: } elsif ($slot->{'endtime'} < $resource_due) {
1814: $resource_due = $slot->{'endtime'};
1815: }
1816: }
1817: }
1818: }
1819: if ($resource_due) {
1820: my $time_left = $resource_due - time();
1821: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1822: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1823: }
1824: }
1825: }
1.368 albertel 1826: $result.="\n $form_tag_start \t".
1.227 albertel 1827: '<input type="hidden" name="submitted" value="yes" />';
1828: # create a page header and exit
1.284 albertel 1829: if ($env{'request.state'} eq "construct") {
1830: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1831: if ($Apache::lonhomework::type eq 'practice') {
1832: $result.= '<input type="submit" name="resetdata" '.
1833: 'value="'.&mt('New Problem Variation').'" />'.
1834: &practice_problem_header().'<hr />';
1835: }
1.227 albertel 1836: }
1837: # if we are viewing someone else preserve that info
1.284 albertel 1838: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1839: foreach my $field ('symb','courseid','domain','username') {
1840: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1841: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1842: }
1.479 raeburn 1843: foreach my $field ('trial','questiontype') {
1844: if ($env{"form.grade_$field"} ne '') {
1845: $result .= '<input type="hidden" name="grade_'.$field.
1846: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1847: }
1848: }
1.159 albertel 1849: }
1.490 raeburn 1850: if ($env{'form.grade_imsexport'}) {
1851: $result = '';
1852: }
1.159 albertel 1853: } elsif ($target eq 'tex') {
1.319 foxr 1854: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 1855: $result .= &select_metadata_hyphenation();
1856:
1.319 foxr 1857:
1.99 sakharuk 1858: }
1.159 albertel 1859: } elsif ($target eq 'edit') {
1.343 albertel 1860: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1861: $Apache::lonxml::warnings_error_header=
1862: &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 1863: my $temp=&Apache::edit::insertlist($target,$token);
1864: $result.=$temp;
1865: } elsif ($target eq 'modified') {
1866: $result=$token->[4];
1867: } else {
1868: # page_start returned a starting result, delete it if we don't need it
1869: $result = '';
1.99 sakharuk 1870: }
1.159 albertel 1871: return $result;
1.9 albertel 1872: }
1873:
1874: sub end_problem {
1.159 albertel 1875: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1876: my $result;
1.310 foxr 1877:
1.321 albertel 1878: if (!$Apache::lonxml::metamode) {
1879: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1880: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1881: }
1.319 foxr 1882:
1883: if ($target eq 'tex') {
1.321 albertel 1884: # Figure out the front matter and replace the
1885: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1886: # this in end_problem because whether or not we display due
1887: # dates depends on whether due dates have already been
1888: # displayed in the problem parts.
1889:
1.319 foxr 1890: my $frontmatter = '';
1891: my $startminipage = '';
1892: if (not $env{'form.problem_split'}=~/yes/) {
1893: $startminipage = '\begin{minipage}{\textwidth}';
1894: }
1895: my $id = $Apache::inputtags::part;
1896: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1897: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.526 raeburn 1898: my @packages = split(/,/,$packages);
1.319 foxr 1899: my $allow_print_points = 0;
1900: foreach my $partial_key (@packages) {
1901: if ($partial_key=~m/^part_0$/) {
1902: $allow_print_points=1;
1903: }
1904: }
1905: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1906: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1907: if (lc($env{'course.'.$env{'request.course.id'}.
1908: '.disableexampointprint'}) eq 'yes') {
1909: $allow_print_points=0;
1910: }
1911: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1912: 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 1913: &clear_required_languages();
1.319 foxr 1914: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1915: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1916:
1917: # Figure out what the due date is and if we need to print
1918: # it in the problem header. We have been logging the
1919: # last due date written to file.
1920:
1921: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1922: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1923: my $duedate_text = &mt('Due date: [_1]'
1924: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1925: my $temp_file;
1926: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1927:
1928: # Figure out what the last printed due date is or set it
1929: # to the epoch if no duedates have been printed.
1930:
1931: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1932: if (-e $filename) {
1933: $temp_file = Apache::File->new($filename);
1934: my @due_file = <$temp_file>;
1935: $due_file_content = $due_file[$#due_file];
1936: chomp $due_file_content;
1937: }
1938:
1939: # We display the due date iff it is not the same as the last
1940: # duedate in problem header ($due_file_content), and
1941: # none of our parts displayed a duedate.
1942: #
1943: my $parts_with_displayduedate;
1944: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1945: $parts_with_displayduedate =
1946: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1947: } else {
1948: $parts_with_displayduedate = 0;
1949: }
1950: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1951: $temp_file = Apache::File->new('>'.$filename);
1952: print $temp_file "$duetime\n";
1953: if (not $env{'request.symb'} =~ m/\.page_/) {
1954: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1955: $frontmatter .= $begin_doc.
1.448 bisitz 1956: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1957: } else {
1958: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1959: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1960: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1961: }
1.319 foxr 1962: }
1963: } else {
1.448 bisitz 1964: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1965: }
1966: } else {
1967: if (not $env{'request.symb'} =~ m/\.page_/) {
1968: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1969: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1970: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1971: }
1.319 foxr 1972: } else {
1.381 albertel 1973: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1974: }
1975: }
1976: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1977: }
1978:
1.159 albertel 1979: my $status=$Apache::inputtags::status['-1'];
1980: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1981: $target eq 'tex') {
1.249 albertel 1982: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1983: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1984: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1985: &Apache::inputtags::grade;
1.324 albertel 1986: } elsif ($status eq 'NEEDS_CHECKIN') {
1987: # no need to grade, and don't want to hide data
1.249 albertel 1988: } else {
1989: # move any submission data to .hidden
1990: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1991: }
1.159 albertel 1992: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1993: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1994: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1995: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1996: # if part is zero, no <part>s existed, so we need show the current
1997: # grading status
1998: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1999: $result.= $gradestatus;
2000: }
2001: if (
1.284 albertel 2002: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 2003: ($target eq 'answer') || ($target eq 'tex')
2004: ) {
1.490 raeburn 2005: if (($target ne 'tex') &&
2006: ($env{'form.answer_output_mode'} ne 'tex') &&
2007: (!$env{'form.grade_imsexport'})) {
1.254 www 2008: $result.="</form>";
1.159 albertel 2009: }
2010: if ($target eq 'web') {
1.507 raeburn 2011: #
2012: # Closing </body></html> not added by end_page().
2013: # Added separately at end of this routine, after added
2014: # <script></script> so document will be valid xhtml.
2015: #
2016: $result.= &Apache::loncommon::end_page({'discussion' => 1,
2017: 'notbody' => 1});
1.159 albertel 2018: } elsif ($target eq 'tex') {
1.178 sakharuk 2019: my $endminipage = '';
1.284 albertel 2020: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 2021: $endminipage = '\end{minipage}';
2022: }
1.284 albertel 2023: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 2024: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 2025: } else {
1.262 sakharuk 2026: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 2027: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 2028: $result .= $endminipage.'\end{document} ';
2029: } else {
1.382 albertel 2030: $result .= $endminipage;
1.262 sakharuk 2031: }
1.159 albertel 2032: }
2033: }
2034: }
1.476 www 2035: if ($target eq 'web') {
2036: $result.=&Apache::functionplotresponse::init_script();
2037: }
1.159 albertel 2038: if ($target eq 'grade') {
2039: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
2040: &finalize_storage();
2041: }
1.284 albertel 2042: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
2043: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 2044: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 2045: # normally we get it from above, but in CSTR
1.172 albertel 2046: # we always show answer mode too.
1.159 albertel 2047: }
2048: } elsif ($target eq 'meta') {
2049: if ($Apache::inputtags::part eq '0') {
1.179 albertel 2050: @Apache::inputtags::response=();
1.159 albertel 2051: $result=&Apache::response::mandatory_part_meta;
2052: }
1.215 albertel 2053: $result.=&Apache::response::meta_part_order();
1.258 albertel 2054: $result.=&Apache::response::meta_response_order();
1.159 albertel 2055: } elsif ($target eq 'edit') {
2056: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 2057: $result .= &problem_edit_footer();
1.320 albertel 2058: } elsif ($target eq 'modified') {
2059: $result .= $token->[2];
1.159 albertel 2060: }
1.155 albertel 2061:
1.284 albertel 2062: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 2063: &Apache::inputtags::check_for_duplicate_ids();
2064: }
1.204 albertel 2065:
2066: &reset_problem_globals('problem');
1.159 albertel 2067:
1.502 foxr 2068: #
2069: # This shouild be just above the return so that the
2070: # time put in the javascript is as late as possible in the
2071: # computation:
2072: #
2073: if ($target eq 'web') {
2074: $result .= &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 2075: #
2076: # Closing tags delayed so any <script></script> tags
2077: # not in head can appear inside body, for valid xhtml.
2078: #
2079: $result .= "</body>\n</html>";
1.502 foxr 2080: }
1.159 albertel 2081: return $result;
1.48 albertel 2082: }
2083:
1.108 albertel 2084:
1.48 albertel 2085: sub start_library {
1.159 albertel 2086: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 2087: my ($result,$form_tag_start);
1.371 albertel 2088: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 2089: &init_problem_globals('library');
2090: $Apache::lonhomework::type='problem';
2091: }
1.159 albertel 2092: if ($target eq 'edit') {
1.343 albertel 2093: ($result,$form_tag_start)=
2094: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2095: 'Edit');
2096: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 2097: my $temp=&Apache::edit::insertlist($target,$token);
2098: $result.=$temp;
2099: } elsif ($target eq 'modified') {
2100: $result=$token->[4];
1.340 albertel 2101: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 2102: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 2103: && $env{'request.state'} eq "construct" ) {
1.159 albertel 2104: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 2105: ($result,$form_tag_start)=
2106: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2107: $name);
1.479 raeburn 2108: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 2109: $result.=" \n $form_tag_start".
1.159 albertel 2110: '<input type="hidden" name="submitted" value="yes" />';
2111: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 2112: if ($Apache::lonhomework::type eq 'practice') {
2113: $result.= '<input type="submit" name="resetdata" '.
2114: 'value="'.&mt('New Problem Variation').'" />'.
2115: &practice_problem_header().'<hr />';
2116: }
1.159 albertel 2117: }
2118: return $result;
1.48 albertel 2119: }
2120:
2121: sub end_library {
1.159 albertel 2122: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2123: my $result='';
2124: if ($target eq 'edit') {
2125: $result=&problem_edit_footer();
1.371 albertel 2126: } elsif ($target eq 'web'
2127: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
2128: && $env{'request.state'} eq "construct") {
1.349 albertel 2129: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 2130: }
1.371 albertel 2131: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
2132: &reset_problem_globals('library');
2133: }
1.159 albertel 2134: return $result;
1.197 www 2135: }
2136:
2137: sub start_definetag {
1.326 albertel 2138: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 2139:
2140: my $result;
2141:
2142: my $name = $token->[2]->{'name'};
1.326 albertel 2143: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 2144: if ($target eq 'web') {
2145: if ($name=~/^\//) {
2146: $result=
2147: '<br /><table class="LC_sty_end"><tr><th>'.
2148: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2149: } else {
2150: $result=
2151: '<br /><table class="LC_sty_begin"><tr><th>'.
2152: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2153: }
2154: $skip = &HTML::Entities::encode($skip, '<>&"');
2155: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 2156: }
2157: return $result;
2158: }
2159:
2160: sub end_definetag {
2161: return '';
1.1 albertel 2162: }
2163:
2164: sub start_block {
1.201 albertel 2165: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 2166:
2167: my $result;
1.1 albertel 2168:
1.339 albertel 2169: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2170: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 2171: my $code = $token->[2]->{'condition'};
1.385 albertel 2172: if (defined($code) && $code ne '') {
1.137 albertel 2173: if (!$Apache::lonxml::default_homework_loaded) {
2174: &Apache::lonxml::default_homework_load($safeeval);
2175: }
1.131 albertel 2176: $result = &Apache::run::run($code,$safeeval);
2177: &Apache::lonxml::debug("block :$code: returned :$result:");
2178: } else {
2179: $result='1';
2180: }
2181: if ( ! $result ) {
1.201 albertel 2182: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 2183: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2184: }
2185: $result='';
2186: } elsif ($target eq 'edit') {
2187: $result .=&Apache::edit::tag_start($target,$token);
2188: $result .=&Apache::edit::text_arg('Test Condition:','condition',
2189: $token,40);
2190: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2191: } elsif ($target eq 'modified') {
2192: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2193: $safeeval,'condition');
2194: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 2195: }
1.131 albertel 2196: return $result;
1.1 albertel 2197: }
2198:
2199: sub end_block {
1.167 www 2200: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2201: my $result;
2202: if ($target eq "edit") {
2203: $result.= &Apache::edit::tag_end($target,$token,'');
2204: }
2205: return $result;
2206: }
1.500 foxr 2207: #
2208: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
2209: # ...
2210: # </languageblock>
2211: #
2212: # This declares the intent to provide content that can be rendered in the
2213: # set of languages in the include specificatino but not in the exclude
2214: # specification. If a currently preferred language is in the include list
2215: # the content in the <languageblock>...</languageblock> is rendered
2216: # If the currently preferred language is in the exclude list,
2217: # the content in the <languageblock>..></languageblock is not rendered.
2218: #
2219: # Pathalogical case handling:
2220: # - Include specified, without the preferred language but exclude specified
2221: # also without the preferred langauge results in rendering the block.
2222: # - Exclude specified without include and excluden not containing a
2223: # preferred language renders the block.
2224: # - Include and exclude both specifying the preferred language does not
2225: # render the block.
2226: # - If neither include/exclude is specified, the block gets rendered.
2227: #
2228: # This tag has no effect when target is in {edit, modified}
2229: #
1.167 www 2230: sub start_languageblock {
1.201 albertel 2231: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 2232:
1.500 foxr 2233: my $result = '';
1.167 www 2234:
1.339 albertel 2235: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2236: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 2237: my $include = $token->[2]->{'include'};
2238: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 2239: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 2240:
2241: # This should not even happen, since we should at least have the server language
2242:
2243: if (!$preferred_languages[0]) {
2244: $preferred_languages[0]='en';
2245: }
2246:
2247: # Now loop over all languages in order of preference
2248:
2249: my $render;
1.398 www 2250: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 2251:
2252: # If neither include/nor exlude is present the block is going
2253: # to get rendered.
2254:
1.399 www 2255: my $found=0;
1.500 foxr 2256: $render=1;
2257:
2258: # If include is specified, don't render the block
2259: # unless the preferred language is included in the set.
2260:
1.398 www 2261: if ($include) {
1.500 foxr 2262: $render=0;
1.398 www 2263: foreach my $included_language (split(/\,/,$include)) {
2264: if ($included_language eq $preferred_language) {
1.500 foxr 2265: $render=1;
1.399 www 2266: $found=1;
1.500 foxr 2267: last; # Only need to find the first.
1.398 www 2268: }
2269: }
2270: }
1.500 foxr 2271: # Do we have an exclude argument?
2272: # If so, and one of the languages matches a preferred language
2273: # inhibit rendering the block. Note that in the pathalogical case the
2274: # author has specified a preferred language in both the include and exclude
2275: # attribte exclude is preferred.
2276:
1.398 www 2277: if ($exclude) {
1.500 foxr 2278: $render=1;
1.398 www 2279: foreach my $excluded_language (split(/\,/,$exclude)) {
2280: if ($excluded_language eq $preferred_language) {
1.500 foxr 2281: $render=0;
1.399 www 2282: $found=1;
1.500 foxr 2283: last; # Only need to find the first.
1.398 www 2284: }
2285: }
2286: }
1.500 foxr 2287: if ($found) {
2288: last; # Done on any match of include or exclude.
2289: }
1.398 www 2290: }
1.500 foxr 2291: # If $render not true skip the entire block until </languageblock>
2292: #
2293:
2294: if ( ! $render ) {
1.201 albertel 2295: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
2296: $style);
2297: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2298: }
1.500 foxr 2299: # If $render is true, we've not skipped the contents of the <languageglock>
2300: # and the normal loncapa processing flow will render it as a matter of course.
2301:
1.167 www 2302: } elsif ($target eq 'edit') {
2303: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2304: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 2305: $token,40);
1.211 albertel 2306: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 2307: $token,40);
2308: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2309: } elsif ($target eq 'modified') {
2310: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 2311: $safeeval,'include',
2312: 'exclude');
1.167 www 2313: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2314: }
2315: return $result;
2316: }
2317:
2318: sub end_languageblock {
1.170 www 2319: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2320: my $result;
1.201 albertel 2321: if ($target eq "edit") {
1.170 www 2322: $result.= &Apache::edit::tag_end($target,$token,'');
2323: }
2324: return $result;
2325: }
1.500 foxr 2326: # languagblock specific tags:
2327: {
2328: # For chunks of a resource that has translations, this hash contains
2329: # the translations available indexed by language name.
2330: #
2331:
2332: my %available_texts;
1.170 www 2333:
1.500 foxr 2334: # <translated> starts a block of a resource that has multiple translations.
2335: # See the <lang> tag as well.
2336: # When </translated> is encountered if there is a translation for the
2337: # currently preferred language, that is rendered inthe web/tex/webgrade
2338: # targets. Otherwise, the default text is rendered.
2339: #
2340: # Note that <lang> is only registered for the duration of the
2341: # <translated>...</translated> block
2342: #
2343: # Pathalogical case handling:
2344: # - If there is no <lang> that specifies a 'default' and there is no
2345: # translation that matches a preferred language, nothing is rendered.
2346: # - Nested <translated>...</translated> might be linguistically supported by
2347: # XML due to the stack nature of tag registration(?) however the rendered
2348: # output will be incorrect because there is only one %available_texts
2349: # has and end_translated clears it.
2350: # - Material outside of a <lang>...</lang> block within the
2351: # <translated>...<translated> block won't render either e.g.:
2352: # <translated>
2353: # The following will be in your preferred langauge:
2354: # <lang which='en'>
2355: # This section in english
2356: # </lang>
2357: # <lang which='sgeiso'>
2358: # Hier es ist auf Deutsch.
2359: # </lang>
2360: # <lang which='sfriso'>
2361: # En Francais
2362: # </lang>
2363: # </translated>
2364: #
2365: # The introductory text prior to the first <lang> tag is not rendered.
2366: #
1.397 albertel 2367: sub start_translated {
2368: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2369: &Apache::lonxml::register('Apache::structuretags',('lang'));
2370: undef(%available_texts);
2371: }
2372:
2373: sub end_translated {
2374: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2375: my $result;
2376: #show the translation on viewable targets
2377: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
2378: # or non-viewable targets, if it's embedded in something that
2379: # wants the output
2380: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
2381: && &Apache::lonxml::in_redirection() ) ) {
2382: my @possibilities = keys(%available_texts);
2383: my $which =
2384: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 2385: if ($target eq 'tex') {
2386: $result = &select_hyphenation($which);
2387: }
2388: $result .= $available_texts{$which};
2389: if ($target eq 'tex') {
2390: $result .= &select_metadata_hyphenation(); # Restore original language.
2391: }
1.397 albertel 2392: }
2393: undef(%available_texts);
2394: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
2395: return $result;
2396: }
2397:
1.500 foxr 2398: # <lang [which='language-name'] [other='lang1,lang2...']>
2399: # Specifies that the block contained within it is a translation
2400: # for a specific language specified by the 'which' attribute. The
2401: # 'other' attribute can be used by itself or in conjunction with
2402: # which to specify this tag _may_ be used as a translation for some
2403: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
2404: # specifying that the block provides a translation for US (primary)
2405: # Canadian, Australian and UK Englush.
2406: #
2407: # Comment: this seems a bit silly why not just support a list of languages
2408: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
2409: #
2410: # Effect:
2411: # The material within the <lang>..</lang> block is stored in the
2412: # specified set of $available_texts hash entries, the appropriate one
2413: # is selected at </translated> time.
2414: #
2415: # Pathalogical case handling:
2416: # If a language occurs multiple times within a <translated> block,
2417: # only the last one is rendered e.g.:
2418: #
2419: # <translated>
2420: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
2421: # Red green color blindness is quite common affecting about 7.8% of
2422: # the male population, but onloy about .65% of the female population.
2423: # </lang>
2424: # Red green colour blindness is quite common affecting about 7.8% of
2425: # the male population, but onloy about .65% of the female population.
2426: # <lang which='seniso', other='senisoCA,senisoAU'>
2427: # </translated>
2428: #
2429: # renders the correct spelling of color (colour) for people who have specified
2430: # a preferred language that is one of the British Commonwealth languages
2431: # even though those are also listed as valid selections for the US english
2432: # <lang> block.
2433: #
1.397 albertel 2434: sub start_lang {
2435: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2436: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2437: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2438: &Apache::lonxml::startredirection();
2439: }
2440: return '';
2441: }
2442:
2443: sub end_lang {
2444: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2445: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2446: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2447: my $result = &Apache::lonxml::endredirection();
2448: my $which = &Apache::lonxml::get_param('which',$parstack,
2449: $safeeval);
1.431 raeburn 2450: if ($which=~/\w/) {
2451: $available_texts{$which} = $result;
2452: }
2453: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
2454: $safeeval);
2455: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
2456: if ($language=~/\w/) {
2457: $available_texts{$language} = $result;
2458: }
1.427 bisitz 2459: }
2460:
1.397 albertel 2461: }
2462: return '';
2463: }
1.500 foxr 2464: } # end langauge block specific tags.
2465:
1.397 albertel 2466:
1.170 www 2467: sub start_instructorcomment {
1.201 albertel 2468: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 2469:
2470: my $result;
2471:
1.339 albertel 2472: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2473: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 2474: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 2475: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 2476: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
2477: $parser,$style);
1.170 www 2478: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2479: }
2480: $result='';
2481: } elsif ($target eq 'edit') {
2482: $result .=&Apache::edit::tag_start($target,$token);
2483: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2484: }
2485: return $result;
2486: }
2487:
2488: sub end_instructorcomment {
1.159 albertel 2489: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2490: my $result;
2491: if ($target eq "edit") {
2492: $result.= &Apache::edit::tag_end($target,$token,'');
2493: }
2494: return $result;
1.4 tsai 2495: }
2496:
2497: sub start_while {
1.326 albertel 2498: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2499:
1.160 albertel 2500: my $result;
1.339 albertel 2501: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2502: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2503: my $code = $token->[2]->{'condition'};
1.4 tsai 2504:
1.160 albertel 2505: push( @Apache::structuretags::whileconds, $code);
2506: if (!$Apache::lonxml::default_homework_loaded) {
2507: &Apache::lonxml::default_homework_load($safeeval);
2508: }
2509: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2510: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2511: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2512: push( @Apache::structuretags::whileline, $token->[5]);
2513: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2514: if ( $result ) {
2515: &Apache::lonxml::newparser($parser,\$bodytext);
2516: }
2517: } elsif ($target eq 'edit') {
2518: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2519: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2520: $token,40);
2521: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2522: } elsif ($target eq 'modified') {
2523: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2524: $safeeval,'condition');
2525: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2526: }
1.160 albertel 2527: return $result;
1.4 tsai 2528: }
2529:
2530: sub end_while {
1.159 albertel 2531: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2532: my $result;
2533:
1.339 albertel 2534: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2535: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2536: my $code = pop(@Apache::structuretags::whileconds);
2537: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2538: my $line = pop(@Apache::structuretags::whileline);
2539: my $return = &Apache::run::run($code,$safeeval);
2540: my $starttime=time;
2541: my $error=0;
2542: while ($return) {
2543: if (time-$starttime >
2544: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2545: $return = 0; $error=1; next;
1.161 albertel 2546: }
2547: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2548: if ($target eq 'grade' || $target eq 'answer' ||
2549: $target eq 'analyze') {
2550: # grade/answer/analyze should produce no output but if we
2551: # are redirecting, the redirecter should know what to do
2552: # with the output
2553: if (!$Apache::lonxml::redirection) { undef($result); }
2554: }
1.161 albertel 2555: $return = &Apache::run::run($code,$safeeval);
2556: }
1.516 bisitz 2557: if ($error) {
2558: &Apache::lonxml::error(
2559: '<pre>'
2560: .&mt('Code ran too long. It ran for more than [_1] seconds.',
2561: $Apache::lonnet::perlvar{'lonScriptTimeout'})
2562: .&mt('This occurred while running <while> on line [_1].',
2563: $line)
2564: .'</pre>');
2565: }
1.160 albertel 2566: } elsif ($target eq "edit") {
2567: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2568: }
1.160 albertel 2569: return $result;
1.1 albertel 2570: }
1.6 tsai 2571:
1.160 albertel 2572: # <randomlist show="1">
1.6 tsai 2573: # <tag1>..</tag1>
2574: # <tag2>..</tag2>
2575: # <tag3>..</tag3>
1.160 albertel 2576: # ...
1.6 tsai 2577: # </randomlist>
2578: sub start_randomlist {
1.326 albertel 2579: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2580: my $result;
1.339 albertel 2581: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2582: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2583: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2584: my $b_parser= HTML::LCParser->new(\$body);
2585: $b_parser->xml_mode(1);
2586: $b_parser->marked_sections(1);
1.159 albertel 2587: my $b_tok;
2588: my @randomlist;
2589: my $list_item;
2590: while($b_tok = $b_parser->get_token() ) {
2591: if($b_tok->[0] eq 'S') { # start tag
2592: # get content of the tag until matching end tag
2593: # get all text upto the matching tag
2594: # and push the content into @randomlist
2595: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2596: $b_parser);
2597: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2598: push(@randomlist,$list_item);
2599: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2600: # $list_item</b>";
2601: }
2602: if($b_tok->[0] eq 'T') { # text
2603: # what to do with text in between tags?
2604: # print "<b>TEXT $b_tok->[1]</b><br />";
2605: }
2606: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2607: # print "<b>END-TAG $b_tok->[1]</b><br />";
2608: # }
2609: }
1.303 albertel 2610: if (@randomlist) {
2611: my @idx_arr = (0 .. $#randomlist);
2612: &Apache::structuretags::shuffle(\@idx_arr);
2613: my $bodytext = '';
2614: my $show=$#randomlist;
2615: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2616: $showarg--;
2617: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2618: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2619: my @currlist;
2620: my $part = $Apache::inputtags::part;
2621: if ($part ne '') {
2622: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2623: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2624: if (!(grep(/^\Q$part\E$/,@currlist))) {
2625: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2626: }
2627: } else {
2628: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2629: }
2630: }
2631: }
1.526 raeburn 2632: for my $i (0 .. $show) {
2633: $bodytext .= "$randomlist[ $idx_arr[$i] ]";
1.303 albertel 2634: }
2635: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2636: }
2637: } elsif ($target eq 'edit' ) {
2638: $result .=&Apache::edit::tag_start($target,$token);
2639: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2640: $token,5);
2641: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2642: } elsif ($target eq 'modified' ) {
2643: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2644: $safeeval,'show');
2645: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2646: }
2647: return $result;
1.7 tsai 2648: }
2649:
2650: sub shuffle {
2651: my $a=shift;
2652: my $i;
1.303 albertel 2653: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 2654: &Apache::response::pushrandomnumber();
1.159 albertel 2655: for($i=@$a;--$i;) {
2656: my $j=int(&Math::Random::random_uniform() * ($i+1));
2657: next if $i == $j;
2658: @$a[$i,$j] = @$a[$j,$i];
2659: }
1.251 albertel 2660: &Apache::response::poprandomnumber();
1.7 tsai 2661: }
1.6 tsai 2662: }
2663:
2664: sub end_randomlist {
1.159 albertel 2665: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2666: my $result;
2667: if ($target eq 'edit' ) {
2668: $result=&Apache::edit::tag_end($target,$token,
2669: 'End Randomly Parsed Block');
2670: }
2671: return $result;
1.6 tsai 2672: }
2673:
1.283 albertel 2674: sub ordered_show_check {
2675: my $last_part=$Apache::inputtags::partlist[-2];
2676: my $in_order=
2677: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2678: my $in_order_show=1;
2679: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2680: $in_order_show=&Apache::response::check_status($last_part);
2681: }
2682: return $in_order_show;
2683: }
2684:
1.469 www 2685:
2686: sub start_startpartmarker {
2687: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2688: my $result='';
2689: if ($target eq 'edit') {
2690: $result=&Apache::edit::tag_start($target,$token);
2691: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2692: $result.=&Apache::edit::end_table();
2693:
2694: }
2695: return $result;
2696: }
2697:
2698: sub end_startpartmarker {
2699: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2700: my @result;
2701: if ($target eq 'edit') { $result[1]='no'; }
2702: return @result;
2703: }
2704:
2705: sub start_endpartmarker {
2706: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2707: my $result='';
2708: if ($target eq 'edit') {
2709: $result=&Apache::edit::tag_start($target,$token);
2710: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2711: $result.=&Apache::edit::end_table();
2712:
2713: }
2714: return $result;
2715: }
2716:
2717: sub end_endpartmarker {
2718: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2719: my @result;
2720: if ($target eq 'edit') { $result[1]='no'; }
2721: return @result;
2722: }
2723:
2724:
2725:
2726:
2727:
1.11 albertel 2728: sub start_part {
1.326 albertel 2729: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2730: if (!$Apache::lonxml::metamode) {
2731: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2732: # duedates.
2733: }
1.159 albertel 2734: my $result='';
1.386 albertel 2735: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2736: $Apache::inputtags::part=$id;
1.177 albertel 2737: push(@Apache::inputtags::partlist,$id);
2738: @Apache::inputtags::response=();
1.159 albertel 2739: @Apache::inputtags::previous=();
2740: @Apache::inputtags::previous_version=();
1.405 albertel 2741: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2742: &Apache::response::reset_params();
2743:
1.159 albertel 2744: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2745: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2746: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.528 raeburn 2747: if ($Apache::lonhomework::type eq 'randomizetry') {
2748: my $rndseed=&setup_rndseed($safeeval,$target);
2749: if (($target eq 'grade') && &Apache::response::submitted()) {
1.529 ! raeburn 2750: $Apache::lonhomework::results{"resource.$id.rndseed"}=$rndseed;
1.528 raeburn 2751: }
2752: } elsif (($target eq 'grade') && &Apache::response::submitted()) {
1.529 ! raeburn 2753: $Apache::lonhomework::results{"resource.$id.rndseed"}=$Apache::lonhomework::rawrndseed;
1.528 raeburn 2754: }
1.283 albertel 2755: my $in_order_show=&ordered_show_check();
1.214 albertel 2756: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2757: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2758: &Apache::run::run($expression,$safeeval);
1.159 albertel 2759:
2760: if ($target eq 'meta') {
1.224 www 2761: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2762: return &Apache::response::mandatory_part_meta.
2763: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2764: } elsif ($target eq 'web' || $target eq 'grade' ||
2765: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2766: if ($hidden || !$in_order_show) {
1.326 albertel 2767: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2768: } else {
2769: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2770: push (@Apache::inputtags::status,$status);
2771: my $expression='$external::datestatus="'.$status.'";';
2772: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2773: &Apache::run::run($expression,$safeeval);
1.284 albertel 2774: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2775: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2776: }
1.216 albertel 2777: if (( $status eq 'CLOSED' ) ||
2778: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2779: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2780: ( $status eq 'BANNED') ||
2781: ( $status eq 'UNAVAILABLE') ||
2782: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2783: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2784: $style);
1.159 albertel 2785: if ( $target eq "web" ) {
1.211 albertel 2786: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2787: } elsif ( $target eq 'tex' ) {
1.284 albertel 2788: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2789: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2790: } else {
1.211 albertel 2791: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2792: }
1.159 albertel 2793: }
2794: } else {
2795: if ($target eq 'tex') {
1.284 albertel 2796: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2797: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2798: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2799: } else {
2800: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2801: }
1.195 sakharuk 2802: }
1.159 albertel 2803: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2804: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.526 raeburn 2805: my @allkeys = split(/,/,$allkeys);
1.222 sakharuk 2806: my $allow_print_points = 0;
2807: foreach my $partial_key (@allkeys) {
1.230 albertel 2808: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2809: if ($1 ne '0') {$allow_print_points=1;}
2810: }
2811: }
1.275 albertel 2812: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2813: if (defined($maxtries) && $maxtries < 0) {
2814: $allow_print_points=0;
2815: }
1.302 albertel 2816: if (lc($env{'course.'.$env{'request.course.id'}.
2817: '.disableexampointprint'}) eq 'yes') {
2818: $allow_print_points=0;
2819: }
1.463 foxr 2820: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2821: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2822:
2823: }
1.233 www 2824: } elsif ($target eq 'web') {
1.479 raeburn 2825: if ($status eq 'CAN_ANSWER') {
2826: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2827: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
2828: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
2829: my $num = scalar(@Apache::inputtags::partlist)-1;
2830: if ($probrandomize eq 'randomizetry') {
2831: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
2832: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2833: } else {
2834: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2835: if ($probrandtries ne $reqtries) {
2836: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2837: }
2838: }
2839: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
2840: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2841: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2842: }
2843: }
1.475 raeburn 2844: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2845: }
2846: }
2847: }
2848: } elsif ($target eq 'edit') {
2849: $result.=&Apache::edit::tag_start($target,$token);
2850: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2851: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2852: ' '.
2853: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2854: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2855: } elsif ($target eq 'modified') {
2856: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2857: $safeeval,'id','display');
1.159 albertel 2858: if ($constructtag) {
1.225 albertel 2859: #limiting ids to only letters numbers, and space
1.224 www 2860: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2861: $result = &Apache::edit::rebuild_tag($token);
2862: }
2863: }
2864: return $result;
1.11 albertel 2865: }
2866:
2867: sub end_part {
1.159 albertel 2868: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2869: &Apache::lonxml::debug("in end_part $target ");
2870: my $status=$Apache::inputtags::status['-1'];
2871: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2872: my $in_order_show=&ordered_show_check();
1.321 albertel 2873: my $result;
2874: if (!$Apache::lonxml::metamode) {
2875: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2876: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2877: }
1.312 albertel 2878: if ($target eq 'grade') {
1.249 albertel 2879: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2880: !$hidden && $in_order_show) {
1.311 foxr 2881: $result.=&Apache::inputtags::grade;
1.249 albertel 2882: } else {
2883: # move any submission data to .hidden
2884: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2885: }
1.283 albertel 2886: } elsif (($target eq 'web' || $target eq 'tex') &&
2887: !$hidden && $in_order_show) {
1.159 albertel 2888: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2889: $target);
1.490 raeburn 2890: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2891: ($env{'form.grade_imsexport'})) {
1.212 albertel 2892: $gradestatus='';
2893: }
1.311 foxr 2894: $result.=$gradestatus;
1.265 sakharuk 2895: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2896: } elsif ($target eq 'edit') {
1.311 foxr 2897: $result.=&Apache::edit::end_table();
1.322 albertel 2898: } elsif ($target eq 'modified') {
2899: $result .= $token->[2];
1.159 albertel 2900: }
2901: pop @Apache::inputtags::status;
2902: $Apache::inputtags::part='';
1.295 albertel 2903: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2904: return $result;
1.11 albertel 2905: }
1.1 albertel 2906:
1.25 albertel 2907: sub start_preduedate {
1.326 albertel 2908: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2909: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2910: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2911: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2912: if (!$Apache::lonhomework::scantronmode &&
2913: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2914: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2915: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2916: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2917: }
1.24 albertel 2918: }
1.159 albertel 2919: return '';
1.24 albertel 2920: }
2921:
1.25 albertel 2922: sub end_preduedate {
1.159 albertel 2923: return '';
1.24 albertel 2924: }
2925:
1.369 foxr 2926: # In all the modes where <postanswerdate> text is
2927: # displayable, all we do is eat up the text between the start/stop
2928: # tags if the conditions are not right to display it.
1.25 albertel 2929: sub start_postanswerdate {
1.326 albertel 2930: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2931: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2932: &Apache::lonnet::allowed('pav',
2933: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2934: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2935: $target eq 'tex' ) {
1.300 albertel 2936: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2937: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2938: (($target eq 'tex') && !$pav)) {
1.326 albertel 2939: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2940: }
2941: }
2942: return '';
1.24 albertel 2943: }
2944:
1.25 albertel 2945: sub end_postanswerdate {
1.159 albertel 2946: return '';
1.24 albertel 2947: }
2948:
1.25 albertel 2949: sub start_notsolved {
1.326 albertel 2950: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2951: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2952: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2953: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2954: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2955: if ($gradestatus =~ /^correct/ &&
2956: &Apache::response::show_answer()) {
1.159 albertel 2957: &Apache::lonxml::debug("skipping");
1.326 albertel 2958: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2959: }
1.24 albertel 2960: }
1.159 albertel 2961: return '';
1.24 albertel 2962: }
2963:
1.25 albertel 2964: sub end_notsolved {
1.159 albertel 2965: return '';
1.24 albertel 2966: }
2967:
2968: sub start_solved {
1.326 albertel 2969: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2970: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2971: $target eq 'tex') {
2972: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2973: if ($gradestatus !~ /^correct/ ||
2974: !&Apache::response::show_answer()) {
1.326 albertel 2975: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2976: }
1.24 albertel 2977: }
1.159 albertel 2978: return '';
1.24 albertel 2979: }
2980:
2981: sub end_solved {
1.248 albertel 2982: return '';
2983: }
2984:
2985: sub start_problemtype {
1.326 albertel 2986: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2987: my $result;
1.339 albertel 2988: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2989: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2990: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2991: if (!defined($mode)) { $mode='show'; }
2992: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2993: my $found=0;
2994: foreach my $type (split(',',$for)) {
2995: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2996: }
2997: if ($mode eq 'show' && !$found) {
1.326 albertel 2998: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2999: }
3000: if ($mode eq 'hide' && $found) {
1.326 albertel 3001: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 3002: }
3003: } elsif ($target eq 'edit') {
3004: $result .=&Apache::edit::tag_start($target,$token);
3005: $result.=&Apache::edit::select_arg('Mode:','mode',
3006: [['show','Show'],
3007: ['hide','Hide']]
3008: ,$token);
3009: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.511 bisitz 3010: [ ['exam','Bubblesheet Exam/Quiz Problem'],
1.248 albertel 3011: ['survey','Survey'],
1.465 raeburn 3012: ['surveycred','Survey (with credit)'],
3013: ['anonsurvey','Anonymous Survey'],
3014: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 3015: ['problem','Homework Problem'],
1.479 raeburn 3016: ['practice','Practice Problem'],
3017: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 3018: ,$token);
3019: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
3020: } elsif ($target eq 'modified') {
3021: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
3022: $safeeval,'mode','for');
3023: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
3024: }
3025: return $result;
3026: }
3027:
3028: sub end_problemtype {
1.159 albertel 3029: return '';
1.24 albertel 3030: }
1.34 albertel 3031:
3032: sub start_startouttext {
1.159 albertel 3033: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3034: my @result=(''.'');
3035: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 3036:
3037: my $nesting =
3038: &Apache::lonxml::set_state('outtext',
3039: &Apache::lonxml::get_state('outtext')+1);
3040: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
3041: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
3042: }
1.159 albertel 3043: return (@result);
1.34 albertel 3044: }
1.159 albertel 3045:
1.34 albertel 3046: sub end_startouttext {
1.326 albertel 3047: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 3048: my $result='';
3049: my $text='';
3050: if ($target eq 'edit') {
1.424 foxr 3051: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 3052: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.527 golterma 3053: $result.=&Apache::edit::start_table($token)."<tr><td>".&Apache::loncommon::insert_folding_button()
3054: ." ".&mt('Text Block')."</td>"
1.438 bisitz 3055: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 3056: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 3057: .'</span></td>'
1.515 golterma 3058: .'<td><span id="math_'.$areaid.'">'
1.474 raeburn 3059: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
1.512 bisitz 3060: .'</span></td>'
1.474 raeburn 3061: .'<td>'
3062: .&Apache::edit::insertlist($target,$token)
3063: .'</td>'
1.515 golterma 3064: .'<td class="LC_edit_problem_latexhelper">' .
1.474 raeburn 3065: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 3066: &Apache::edit::end_row().
1.362 albertel 3067: &Apache::edit::start_spanning_row()."\n".
1.255 www 3068: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 3069: }
3070: if ($target eq 'modified') {
1.219 albertel 3071: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 3072: }
3073: if ($target eq 'tex') {
3074: $result .= '\noindent ';
3075: }
3076: return $result;
1.34 albertel 3077: }
1.159 albertel 3078:
1.34 albertel 3079: sub start_endouttext {
1.159 albertel 3080: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3081: my $result='';
3082: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
3083: if ($target eq "modified") {
3084: $result='<endouttext />'.
1.377 albertel 3085: &Apache::edit::handle_insertafter('startouttext');
3086: }
1.404 albertel 3087:
3088: my $nesting =
3089: &Apache::lonxml::set_state('outtext',
3090: &Apache::lonxml::get_state('outtext')-1);
3091: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
3092: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
3093: &Apache::lonxml::set_state('outtext', 0);
3094: }
1.159 albertel 3095: return $result;
1.34 albertel 3096: }
1.159 albertel 3097:
1.34 albertel 3098: sub end_endouttext {
1.159 albertel 3099: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3100: my @result=('','');
3101: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
3102: return (@result);
1.34 albertel 3103: }
1.159 albertel 3104:
1.45 albertel 3105: sub delete_startouttext {
1.326 albertel 3106: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
3107: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 3108: my $text=$$parser['-1']->get_text("/endouttext");
3109: my $ntoken=$$parser['-1']->get_token();
3110: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
3111: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
3112: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
3113: # they did the last time round
3114: &Apache::lonxml::increasedepth($ntoken);
3115: &Apache::lonxml::decreasedepth($ntoken);
3116: return 1;
1.193 www 3117: }
3118:
3119: sub start_simpleeditbutton {
3120: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3121: my $result='';
1.284 albertel 3122: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 3123: ($target eq 'web') &&
1.330 albertel 3124: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 3125: my $url=$env{'request.noversionuri'};
1.193 www 3126: $url=~s/\?.*$//;
1.367 albertel 3127: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 3128: # Warning makes more sense and is more important on edit screen
1.442 bisitz 3129: # $result='<p class="LC_warning">'
3130: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
3131: # .&Apache::loncommon::help_open_topic('Caching')
3132: # .'</p>';
1.486 www 3133: $result.=&Apache::loncommon::head_subbox(
3134: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 3135: .&Apache::lonhtmlcommon::add_item_funclist(
3136: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
3137: .&mt('Edit').'</a>')
1.486 www 3138: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 3139:
1.193 www 3140: }
3141: return $result;
3142: }
3143:
3144: sub end_simpleeditbutton {
3145: return '';
1.45 albertel 3146: }
1.34 albertel 3147:
1.428 raeburn 3148: sub practice_problem_header {
3149: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
3150: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
3151: '</span>';
3152: }
3153:
1.479 raeburn 3154: sub randomizetry_problem_header {
3155: my ($problemstatus,$reqtries) = @_;
3156: my ($header,$text);
3157: if ($reqtries > 1) {
3158: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
3159: if (($problemstatus eq 'no') ||
3160: ($problemstatus eq 'no_feedback_ever')) {
3161: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3162: } else {
3163: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3164: }
3165: } else {
3166: $header = &mt('New Problem Variation Each Try');
3167: if (($problemstatus eq 'no') ||
3168: ($problemstatus eq 'no_feedback_ever')) {
3169: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
3170:
3171: } else {
3172: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
3173: }
3174: }
3175: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
3176: '<span class="LC_info">'.$text.'</span><hr />';
3177: }
3178:
3179: sub randomizetry_part_header {
3180: my ($problemstatus,$reqtries,$num) = @_;
3181: my ($header,$text);
3182: if ($reqtries eq 'none') {
3183: $header = &mt('No Question Variation');
3184: $text = &mt('For this question there will no new variation after a try.');
3185: } elsif ($reqtries > 1) {
3186: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
3187: if (($problemstatus eq 'no') ||
3188: ($problemstatus eq 'no_feedback_ever')) {
3189: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3190: } else {
3191: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3192: }
3193: } else {
3194: $header = &mt('New Question Variation For Each Try');
3195: if (($problemstatus eq 'no') ||
3196: ($problemstatus eq 'no_feedback_ever')) {
3197: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
3198: } else {
3199: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
3200: }
3201: }
3202: my $output;
3203: if ($num > 1) {
3204: $output .= '<hr />';
3205: }
3206: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
3207: '<span class="LC_info">'.$text.'</span><br /><br />';
3208: return $output;
3209: }
3210:
1.1 albertel 3211: 1;
3212: __END__
1.435 jms 3213:
3214: =pod
3215:
3216: =back
3217:
3218: =cut
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