Annotation of loncom/homework/structuretags.pm, revision 1.533
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.533 ! droeschl 4: # $Id: structuretags.pm,v 1.532 2015/03/10 23:11:22 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 $result;;
1.10 albertel 220: }
221:
222: sub end_tex {
1.44 ng 223: return '';
1.9 albertel 224: }
225:
1.400 albertel 226: sub homework_js {
1.531 raeburn 227: my ($postsubmit,$timeout);
228: if (($env{'request.course.id'}) && ($env{'request.state'} ne 'construct')) {
229: my $crstype;
230: if (&Apache::loncommon::course_type() eq 'Community') {
231: $crstype = 'community';
232: } else {
233: if ($env{'course.'.$env{'request.course.id'}.'.internal.coursecode'}) {
234: $crstype = 'official';
235: } elsif ($env{'course.'.$env{'request.course.id'}.'.internal.textbook'}) {
236: $crstype = 'textbook';
237: } else {
238: $crstype = 'unofficial';
239: }
240: }
241: $postsubmit = $env{'course.'.$env{'request.course.id'}.'.internal.postsubmit'};
242: if ($postsubmit eq '') {
243: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
244: $postsubmit = $domdefs{'postsubmit'};
245: unless ($postsubmit eq 'off') {
246: $timeout = $domdefs{$crstype.'postsubtimeout'};
247: }
248: } elsif ($postsubmit eq '0') {
249: $postsubmit = 'off';
250: } elsif ($postsubmit eq '1') {
251: $postsubmit = 'on';
252: $timeout = $env{'course.'.$env{'request.course.id'}.'.internal.postsubtimeout'};
253: if ($timeout eq '') {
254: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
255: $timeout = $domdefs{$crstype.'postsubtimeout'};
256: }
257: }
258: if ($timeout eq '') {
259: $timeout = 60;
260: }
261: } else {
262: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'request.role.domain'});
263: $postsubmit = $domdefs{'postsubmit'};
264: unless ($postsubmit eq 'off') {
265: $timeout = 60;
266: }
267: }
268: my $jstimeout = 0;
269: if ($timeout) {
270: $jstimeout = 1000 * $timeout;
271: }
1.400 albertel 272: return &Apache::loncommon::resize_textarea_js().
1.527 golterma 273: &Apache::loncommon::colorfuleditor_js().
1.416 raeburn 274: &setmode_javascript().
1.531 raeburn 275: <<"JS";
1.400 albertel 276: <script type="text/javascript">
1.483 raeburn 277: // <![CDATA[
1.494 raeburn 278: function setSubmittedPart (part,prefix) {
279: if (typeof(prefix) == 'undefined') {
280: this.document.lonhomework.submitted.value="part_"+part;
281: } else {
282: for (var i=0;i<this.document.lonhomework.elements.length;i++) {
283: if (this.document.lonhomework.elements[i].name == prefix+'submitted') {
284: this.document.lonhomework.elements[i].value="part_"+part;
285: }
286: }
287: }
1.400 albertel 288: }
289:
1.532 raeburn 290: function disableAutoComplete (id) {
291: var field = document.getElementById(id);
292: if (field != null && field != undefined){
293: if ('autocomplete' in field) {
294: field.autocomplete = "off";
295: } else {
296: field.setAttribute("autocomplete", "off");
297: }
298: }
299: }
300:
1.400 albertel 301: function image_response_click (which, e) {
302: init_geometry();
303: if (!e) { e = window.event; } //IE
304: var input_element = document.lonhomework.elements[which];
1.401 albertel 305: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 306: var token = token_element.value;
1.401 albertel 307: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 308: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
309: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
310: var click = x+':'+y;
311: input_element.value = click;
1.485 raeburn 312: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
1.400 albertel 313: }
1.520 raeburn 314:
315: var submithandled = 0;
1.521 raeburn 316: var keypresshandled = 0;
1.531 raeburn 317: var postsubmit = '$postsubmit';
1.520 raeburn 318:
1.531 raeburn 319: \$(document).ready(function(){
320: if (postsubmit != 'off') {
321: \$(document).keypress(function(event){
1.521 raeburn 322: var keycode = (event.keyCode ? event.keyCode : event.which);
323: if ((keycode == '13') && (keypresshandled == 0)) {
1.531 raeburn 324: if ( \$( document.activeElement ).hasClass("LC_textline") ) {
1.521 raeburn 325: keypresshandled = 1;
1.531 raeburn 326: var idsArray = \$( document.activeElement ).attr("id").split(/HWVAL_/);
1.521 raeburn 327: if (idsArray.length) {
328: event.preventDefault();
329: var itemsArray = idsArray[1].split(/_/);
330: var buttonId = idsArray[0]+'submit_'+itemsArray[0];
1.531 raeburn 331: \$("#"+buttonId).trigger("click");
1.521 raeburn 332: }
333: }
334: }
335: });
336:
1.531 raeburn 337: \$(document).delegate('form :submit', 'click', function( event ) {
338: if ( \$( this ).hasClass( "LC_hwk_submit" ) ) {
1.520 raeburn 339: var buttonId = this.id;
1.531 raeburn 340: var timeout = $jstimeout;
1.520 raeburn 341: if (submithandled == 0) {
342: submithandled = 1;
1.531 raeburn 343: \$( "#msg_"+buttonId ).css({"display": "inline","background-color": "#87cefa",
1.521 raeburn 344: "color": "black","padding": "2px"}) ;
1.531 raeburn 345: if (( \$(this.form).id == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
1.522 raeburn 346: if (buttonId != "all_submit") {
1.531 raeburn 347: \$( ".LC_status_"+buttonId ).hide();
1.522 raeburn 348: if (( "#"+buttonId+"_pressed" ).length) {
1.531 raeburn 349: \$( "#"+buttonId+"_pressed" ).val( "1" );
1.522 raeburn 350: }
1.520 raeburn 351: }
1.522 raeburn 352: } else {
1.531 raeburn 353: \$( ".LC_status_"+buttonId ).hide();
1.520 raeburn 354: }
1.531 raeburn 355: \$(this.form).submit();
356: \$( ".LC_hwk_submit" ).prop( "disabled", true);
357: \$( ".LC_textline" ).prop( "readonly", "readonly");
1.520 raeburn 358: event.preventDefault();
1.531 raeburn 359:
360: if (timeout > 0) {
361: setTimeout(function(){
362: \$( "#msg_"+buttonId ).css({"display": "none"});
363: if (( \$(this.form).id == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
364: if (buttonId != "all_submit") {
365: if (( "#"+buttonId+"_pressed" ).length) {
366: \$( "#"+buttonId+"_pressed" ).val( "" );
367: }
368: }
369: }
370: \$( ".LC_hwk_submit" ).prop( "disabled", false);
371: \$( ".LC_textline" ).prop( "readonly", false);
372: submithandled = 0;
373: keypresshandled = 0;
374: }, timeout);
375: }
1.520 raeburn 376: return true;
377: }
378: }
379: });
1.531 raeburn 380: }
1.520 raeburn 381: });
382:
1.483 raeburn 383: // ]]>
1.400 albertel 384: </script>
385: JS
386: }
387:
1.416 raeburn 388: sub setmode_javascript {
389: return <<"ENDSCRIPT";
390: <script type="text/javascript">
1.485 raeburn 391: // <![CDATA[
1.416 raeburn 392: function setmode(form,probmode) {
393: form.problemmode.value = probmode;
394: form.submit();
395: }
1.485 raeburn 396: // ]]>
1.416 raeburn 397: </script>
398: ENDSCRIPT
399: }
400:
1.48 albertel 401: sub page_start {
1.345 albertel 402: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
403: $extra_head)=@_;
1.159 albertel 404: my %found;
1.207 albertel 405: foreach my $taginside (@$tagstack) {
1.159 albertel 406: foreach my $taglookedfor ('html','body','form') {
407: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
408: }
409: }
410:
1.343 albertel 411: if ($target eq 'tex') {
412: return
413: &Apache::londefdef::start_html($target,$token,$tagstack,
414: $parstack,$parser,$safeeval);
415: }
416:
1.474 raeburn 417: $extra_head .= &homework_js().
418: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
419: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
420: my %textarea_args = (
421: dragmath => 'math',
422: );
423: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 424: }
1.478 raeburn 425: my $is_task = ($env{'request.uri'} =~ /\.task$/);
1.528 raeburn 426: my ($needs_upload,$partlist);
1.495 raeburn 427: my ($symb)= &Apache::lonnet::whichuser();
428: my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
1.478 raeburn 429: if ($is_task) {
1.495 raeburn 430: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
1.493 raeburn 431: } else {
432: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.uploadedfiletypes") ne '') {
1.495 raeburn 433: unless ($env{'request.state'} eq 'construct') {
434: my $navmap = Apache::lonnavmaps::navmap->new();
435: if (ref($navmap)) {
436: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 437: my $is_page;
438: if (ref($mapres)) {
439: $is_page = $mapres->is_page();
440: }
441: unless ($is_page) {
1.495 raeburn 442: $needs_upload = 1;
443: }
1.528 raeburn 444: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
445: my $res = $navmap->getBySymb($symb);
446: if (ref($res)) {
447: $partlist = $res->parts();
448: }
449: }
1.495 raeburn 450: }
451: }
1.493 raeburn 452: } else {
453: unless ($env{'request.state'} eq 'construct') {
454: my $navmap = Apache::lonnavmaps::navmap->new();
455: if (ref($navmap)) {
1.495 raeburn 456: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 457: my $is_page;
458: if (ref($mapres)) {
459: $is_page = $mapres->is_page();
460: }
1.528 raeburn 461: if ($is_page) {
462: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
463: my $res = $navmap->getBySymb($symb);
464: if (ref($res)) {
465: $partlist = $res->parts();
466: }
467: }
468: } else {
1.495 raeburn 469: my $res = $navmap->getBySymb($symb);
470: if (ref($res)) {
1.528 raeburn 471: $partlist = $res->parts();
1.495 raeburn 472: if (ref($partlist) eq 'ARRAY') {
473: foreach my $part (@{$partlist}) {
474: my @types = $res->responseType($part);
475: my @ids = $res->responseIds($part);
476: for (my $i=0; $i < scalar(@ids); $i++) {
477: if ($types[$i] eq 'essay') {
478: my $partid = $part.'_'.$ids[$i];
479: if (&Apache::lonnet::EXT("resource.$partid.uploadedfiletypes") ne '') {
480: $needs_upload = 1;
481: last;
482: }
1.493 raeburn 483: }
484: }
485: }
1.495 raeburn 486: }
487: }
1.493 raeburn 488: }
489: }
490: }
491: }
1.495 raeburn 492: if ($needs_upload) {
493: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
494: }
1.478 raeburn 495: }
1.425 raeburn 496:
1.344 albertel 497: my %body_args;
498: if (defined($found{'html'})) {
499: $body_args{'skip_phases'}{'head'}=1;
500: } else {
1.343 albertel 501:
1.345 albertel 502: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 503:
1.379 albertel 504: $extra_head .= &Apache::londefdef::generate_css_links();
505:
1.384 albertel 506: if ($env{'request.state'} eq 'construct') {
1.343 albertel 507: $extra_head.=&Apache::edit::js_change_detection().
508: "<script type=\"text/javascript\">\n".
509: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
510: &Apache::loncommon::browser_and_searcher_javascript().
511: "\n</script>\n";
1.525 raeburn 512: if ($target eq 'edit') {
513: $extra_head .= &Apache::edit::js_update_linknum();
514: }
1.343 albertel 515: }
1.159 albertel 516: }
1.343 albertel 517:
1.446 bisitz 518: my $pageheader = '';
1.344 albertel 519: if (defined($found{'body'})) {
520: $body_args{'skip_phases'}{'body'}=1;
521: } elsif (!defined($found{'body'})
522: && $env{'request.state'} eq 'construct') {
1.343 albertel 523: if ($target eq 'web' || $target eq 'edit') {
1.513 raeburn 524: # Breadcrumbs for Authoring Space
1.450 bisitz 525: &Apache::lonhtmlcommon::clear_breadcrumbs();
526: &Apache::lonhtmlcommon::add_breadcrumb({
1.513 raeburn 527: 'text' => 'Authoring Space',
1.497 raeburn 528: 'href' => &Apache::loncommon::authorspace($env{'request.uri'}),
1.450 bisitz 529: });
1.460 droeschl 530: # breadcrumbs (and tools) will be created
531: # in start_page->bodytag->innerregister
532:
1.450 bisitz 533: # FIXME Where are we?
534: # &Apache::lonhtmlcommon::add_breadcrumb({
535: # 'text' => 'Problem Editing', # 'Problem Testing'
536: # 'href' => '',
537: # });
1.460 droeschl 538: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 539: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 540: }
1.272 albertel 541: } elsif (!defined($found{'body'})) {
1.343 albertel 542: my %add_entries;
1.159 albertel 543: my $background=&Apache::lonxml::get_param('background',$parstack,
544: $safeeval);
1.343 albertel 545: if ($background ne '' ) {
546: $add_entries{'background'} = $background;
547: }
1.344 albertel 548:
1.290 albertel 549: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
550: $safeeval);
1.446 bisitz 551: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 552:
1.446 bisitz 553: $body_args{'bgcolor'} = $bgcolor;
554: # $body_args{'no_title'} = 1;
555: $body_args{'force_register'} = 1;
556: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 557: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 558: $body_args{'only_body'} = 1;
1.518 raeburn 559: } elsif ($target eq 'web') {
560: $body_args{'print_suppress'} = 1;
1.446 bisitz 561: }
1.344 albertel 562: }
1.365 albertel 563: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 564: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
565: \%body_args);
1.446 bisitz 566: $page_start .= $pageheader;
1.462 raeburn 567: if (!defined($found{'body'})
568: && $env{'request.state'} ne 'construct'
569: && ($target eq 'web' || $target eq 'webgrade')) {
570:
571: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
572: if ($symb eq '' && !$publicuser) {
573: $page_start .= '<p class="LC_info">'
574: .&mt('Browsing resource, all submissions are temporary.')
575: .'</p>';
1.457 bisitz 576: }
1.344 albertel 577: }
578:
1.409 albertel 579: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 580: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 581: }
582: my $form_tag_start;
583: if (!defined($found{'form'})) {
1.337 albertel 584: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 585: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 586: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 587: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 588: $form_tag_start.=$uri.'" ';
589: if ($target eq 'edit') {
590: $form_tag_start.=&Apache::edit::form_change_detection();
591: }
1.493 raeburn 592: my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
593: my ($path,$multiresp) =
594: &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
1.495 raeburn 595: if (($is_task) || ($needs_upload)) {
596: $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
1.478 raeburn 597: }
1.368 albertel 598: $form_tag_start.='>'."\n";
1.355 albertel 599:
600: if ($symb =~ /\S/) {
601: $symb=
602: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
603: $form_tag_start.=
1.368 albertel 604: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 605: }
1.159 albertel 606: }
1.528 raeburn 607: return ($page_start,$form_tag_start,$partlist);
1.105 albertel 608: }
609:
1.141 matthew 610: #use Time::HiRes();
1.105 albertel 611: sub get_resource_name {
1.159 albertel 612: my ($parstack,$safeeval)=@_;
1.388 foxr 613: my $name;
1.204 albertel 614: if (defined($Apache::lonhomework::name)) {
1.388 foxr 615: $name = $Apache::lonhomework::name;
616: } else {
617: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 618: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 619: if ($name eq '') {
620: $name=&Apache::lonnet::EXT('resource.title');
621: if ($name eq 'con_lost') { $name = ''; }
622: }
623: if ($name!~/\S+/) {
624: $name=$env{'request.uri'};
625: $name=~s-.*/([^/]+)$-$1-;
626: }
627: # The name has had html tags escaped:
628:
629: $name=~s/</</gs;
630: $name=~s/>/>/gs;
631:
632: $Apache::lonhomework::name=$name;
1.204 albertel 633: }
1.159 albertel 634: return $name;
1.105 albertel 635: }
636:
637: sub setup_rndseed {
1.528 raeburn 638: my ($safeeval,$target,$probpartlist)=@_;
1.367 albertel 639: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 640: my ($questiontype,$set_safespace,$rndseed);
641: if ($target eq 'analyze') {
642: $questiontype = $env{'form.grade_questiontype'};
643: }
644: unless (defined($questiontype)) {
645: $questiontype = $Apache::lonhomework::type;
646: }
1.333 albertel 647: if ($env{'request.state'} eq "construct"
648: || $symb eq ''
649: || $Apache::lonhomework::type eq 'practice'
650: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 651: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 652: ['rndseed']);
1.284 albertel 653: $rndseed=$env{'form.rndseed'};
1.159 albertel 654: if (!$rndseed) {
1.162 albertel 655: $rndseed=$Apache::lonhomework::history{'rndseed'};
656: if (!$rndseed) {
657: $rndseed=time;
658: }
1.284 albertel 659: $env{'form.rndseed'}=$rndseed;
1.162 albertel 660: }
1.479 raeburn 661: if (($env{'request.state'} eq "construct") &&
662: ($Apache::lonhomework::type eq 'randomizetry')) {
663: my $tries = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
664: if ($tries) {
665: $rndseed += $tries;
666: }
1.480 raeburn 667: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 668: }
1.374 albertel 669: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
670: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 671: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 672: srand(time);
673: $rndseed=int(rand(2100000000));
1.284 albertel 674: $env{'form.rndseed'}=$rndseed;
675: delete($env{'form.resetdata'});
676: delete($env{'form.newrandomization'});
1.159 albertel 677: }
1.488 www 678: $rndseed=~s/\,/\:/g;
679: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 680: if (defined($rndseed)) {
681: my ($c1,$c2)=split(/\:/,$rndseed);
682: unless ($c2) { $c2=0; }
683: unless (($c1==int($c1)) && ($c2==int($c2))) {
684: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
685: }
1.187 albertel 686: }
1.247 albertel 687: if ($Apache::lonhomework::history{'resource.CODE'}) {
688: $rndseed=&Apache::lonnet::rndseed();
689: }
1.479 raeburn 690: $set_safespace = 1;
691: } elsif ($questiontype eq 'randomizetry') {
692: if ($target eq 'analyze') {
693: if (defined($env{'form.grade_rndseed'})) {
694: $rndseed = $env{'form.grade_rndseed'};
695: }
696: }
697: unless (($target eq 'analyze') && (defined($rndseed))) {
698: $rndseed=&Apache::lonnet::rndseed();
1.528 raeburn 699: my $partfortries = $Apache::inputtags::part;
700: if (ref($probpartlist) eq 'ARRAY') {
701: if ((@{$probpartlist} == 1) && ($probpartlist->[0] ne $Apache::inputtags::part)) {
702: $partfortries = $probpartlist->[0];
703: }
704: }
705: my $curr_try = $Apache::lonhomework::history{"resource.$partfortries.tries"};
1.479 raeburn 706: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
707: $curr_try ++;
708: }
709: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
710: $rndseed = $1;
711: }
712: if ($curr_try) {
1.528 raeburn 713: my $reqtries = &Apache::lonnet::EXT("resource.$partfortries.randomizeontries");
1.479 raeburn 714: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
715: my $inc = int(($curr_try-1)/$reqtries);
716: $rndseed += $inc;
717: } else {
718: $rndseed += $curr_try;
719: }
720: }
721: }
722: $set_safespace = 1;
1.528 raeburn 723: if ($target eq 'grade') {
724: $Apache::lonhomework::rawrndseed = $rndseed;
725: }
1.479 raeburn 726: }
727: if ($set_safespace) {
728: if ($safeeval) {
729: &Apache::lonxml::debug("Setting rndseed to $rndseed");
730: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
731: }
732: }
733: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
734: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 735: }
736: return $rndseed;
1.105 albertel 737: }
738:
1.268 albertel 739: sub remember_problem_state {
740: return '
1.284 albertel 741: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
742: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
743: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 744: }
745:
1.487 www 746: sub problem_edit_action_button {
747: my ($name,$action,$accesskey,$text,$flag)=@_;
748: my $actionscript="setmode(this.form,'$action')";
749: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
750: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
751: }
752:
1.423 www 753: sub problem_edit_buttons {
1.487 www 754: my ($mode)=@_;
755: # Buttons that do not save
756: my $result='<div class="LC_edit_problem_discards">'.
757: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
758: if ($mode eq 'editxml') {
759: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
760: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
761: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
762: } else {
763: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
764: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
765: }
766: $result.="\n</div>";
767: # Buttons that save
768: $result.='<div class="LC_edit_problem_saves">';
769: if ($mode eq 'editxml') {
770: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
771: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
772: } else {
773: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
774: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
775: }
776: $result.="\n</div>\n";
777: return $result;
1.423 www 778: }
779:
1.527 golterma 780: sub insert_menu_datastructure {
781:
782: my $template_menu = &template_dropdown_datastructure();
783: my $responseblock_menu = &responseblock_dropdown_datastructure();
784: my $conditional_scripting = &conditional_scripting_datastructure();
785: my $misc = &misc_datastructure();
786:
787: my @menu = ($template_menu, $responseblock_menu, $conditional_scripting, $misc);
788: return \@menu;
789:
790: }
791:
792: sub template_dropdown_datastructure {
793: # gathering the all templates and their path, title, category and help topic
794: my @templates = &Apache::lonhomework::get_template_list('problem');
795: # template category => title
796: my %tmplthash = ();
797: # template title => path
798: my %tmpltcontent = ();
799:
800: foreach my $template (@templates){
801: # put in hash if the template is not empty
802: unless ($template->[1] eq ''){
803: push(@{$tmplthash{$template->[2]}}, $template->[1]);
804: push(@{$tmpltcontent{$template->[1]}},$template->[0]);
805: }
806: }
807:
808: my $catList = [];
809: foreach my $cat (sort keys %tmplthash) {
810: my $catItems = [];
811: foreach my $title (sort @{$tmplthash{$cat}}) {
812: my $path = $tmpltcontent{$title}->[0];
813: my $code;
1.533 ! droeschl 814: open(FH, "<:encoding(UTF-8)", $path);
1.527 golterma 815: while(<FH>){
816: $code.= $_ unless $_ =~ /(<problem>)|(<\/problem>)/;
817: }
818: close(FH);
819:
820: if ($code ne '') {
821: my $href = 'javascript:insertText(\'' . &convert_for_js(&HTML::Entities::encode($code)) . '\')';
822: my $currItem = [$href, $title, undef];
823: push @{$catItems}, $currItem;
824: }
825: }
826: push @{$catList}, [$catItems, $cat, undef];
827: }
828:
829: my $templDropdown = [$catList, &mt("Complete Problem Templates"), undef];
830: return $templDropdown;
831: }
832:
833: sub responseblock_dropdown_datastructure {
834:
835: my $mathCat = [
836: [
837: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_formularesponse())) . "\')", &mt("Formula Response"), undef],
838: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_functionplotresponse())) . "\')", &mt("Function Plot Response"), undef],
839: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_mathresponse())) . "\')", &mt("Math Response"), undef],
840: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_numericalresponse())) . "\')", &mt("Numerical Response"), undef]
841: ],
842: &mt("Math"),
843: undef
844: ];
845:
846: my $miscCat = [
847: [
848: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_imageresponse())) . "\')", &mt("Click on Image"), undef],
849: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_customresponse())) . "\')", &mt("Custom Response"), undef],
850: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_externalresponse())) . "\')", &mt("External Response"), undef],
851: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_matchresponse())) . "\')", &mt("Match Response"), undef],
852: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_radiobuttonresponse())) . "\')", &mt("One out of N Statement"), undef],
853: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_optionresponse())) . "\')", &mt("Optionresponse"), undef],
854: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_rankresponse())) . "\')", &mt("Rank Values"), undef]
855: ],
856: &mt("Misc"),
857: undef
858: ];
859:
860: my $chemCat = [
861: [
862: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_reactionresponse())) . "\')", &mt("Chemical Reaction"), undef],
863: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_organicresponse())) . "\')", &mt("Organic Structure"), undef]
864: ],
865: &mt("Chemical"),
866: undef
867: ];
868:
869: my $textCat = [
870: [
871: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_stringresponse())) . "\')", &mt("String Response"), undef],
872: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_essayresponse())) . "\')", &mt("Essay"), undef]
873: ],
874: &mt("Text"),
875: undef
876: ];
877:
878: my $cats = [[$mathCat, $miscCat, $chemCat, $textCat], &mt("Response Types"), undef];
879: return $cats;
880: }
881:
882:
883: sub conditional_scripting_datastructure {
884: # TODO: corresponding routines should be used for the javascript:insertText parts
885: # instead of the placeholder routine default_xml_tag with the tags
886: # e.g. &default_xml_tag("postanswerdate") should be replaced with a routine which
887: # returns the corresponding content for this case
888:
889: #TODO translated is currently temporarily here, another solution should be found where the
890: # needed string can be retrieved
891:
892: my $translatedTag = '
893: <translated>
894: <lang which="en"></lang>
895: <lang which="default"></lang>
896: </translated>';
897:
898: my $cat = [
899: [
900: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode($translatedTag)) . "\')", &mt("Translated Tag"), undef],
901: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("block"))) . "\')", &mt("Conditional Block"), undef],
902: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("postanswerdate"))) . "\')", &mt("After Answer Block"), undef],
903: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("preduedate"))) . "\')", &mt("Before Due Date Block"), undef],
904: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("solved"))) . "\')", &mt("Block For After Solved"), undef],
905: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("notsolved"))) . "\')", &mt("Block For When Not Solved"), undef]
906: ],
907: &mt("Contitional Scripting"),
908: undef
909: ];
910:
911: return $cat;
912: }
913:
914: sub misc_datastructure {
915:
916: my $graphicalCat = [
917: [
918: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_img())) . "\')", &mt("Image"), undef],
919: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::lonplot::insert_gnuplot())) . "\')", &mt("GNU Plot"), undef],
920: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_organicstructure())) . "\')", &mt("Organic Structure"), undef]
921: ],
922: "Graphical",
923: undef
924: ];
925:
926: my $advancedCat = [
927: [
928: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_script())) . "\')", &mt("Script Block"), undef],
929: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("allow"))) . "\')", &mt("File Dependencies"), undef],
930: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("import"))) . "\')", &mt("Import a File"), undef],
931: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::londefdef::insert_meta())) . "\')", &mt("Custom Metadata"), undef]
932: ],
933: "advanced",
934: undef
935: ];
936:
937: my $cats = [[$graphicalCat, $advancedCat], &mt("misc"), undef];
938: return $cats;
939: }
940:
941: # helper routine for the datastructure building subroutines
942: sub default_xml_tag {
943: my ($tag) = @_;
944: return "\n<$tag></$tag>";
945: }
946:
947:
948: sub helpmenu_datastructure {
949:
950: my $width = 500;
951: my $height = 600;
952:
953: my $helpers = [
954: ['Problem_LON-CAPA_Functions', &mt('Script Functions')],
955: ['Greek_Symbols', &mt('Greek Symbols')],
956: ['Other_Symbols', &mt('Other Symbols')],
957: ['Authoring_Output_Tags', &mt('Output Tags')],
958: ['Authoring_Multilingual_Problems',
959: &mt('How to create problems in different languages')]
960: ];
961:
962: my $help_structure = [];
963:
964: foreach my $count (0..(scalar(@{$helpers})-1)) {
965: my $filename = $helpers->[$count]->[0];
966: my $title = $helpers->[$count]->[1];
967: my $href = &HTML::Entities::encode("javascript:openMyModal('/adm/help/$filename.hlp',$width,$height,'yes');");
968: push @{$help_structure}, [$href, $title, undef];
969: }
970:
971: return $help_structure;
972: }
973:
974: # we need substitution to not break javascript code
975: sub convert_for_js {
976: my $return = shift;
977: $return =~ s|script|ESCAPEDSCRIPT|g;
1.530 droeschl 978: $return =~ s|\\|\\\\|g;
1.527 golterma 979: $return =~ s|\n|\\r\\n|g;
980: $return =~ s|'|\\'|g;
981: $return =~ s|'|\\'|g;
982: return $return;
983: }
984:
1.423 www 985: sub problem_edit_header {
1.527 golterma 986: my ($mode)=@_;
987: my $return = '<input type="hidden" name="submitted" value="edit" />'.
1.487 www 988: &remember_problem_state('edit').'
1.527 golterma 989: <div class="LC_edit_problem_header">
990: <div class="LC_edit_problem_header_title">
991: '.&mt('Problem Editing').$mode.&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
992: </div><div class="LC_edit_actionbar" id="actionbar">'.
993: '<input type="hidden" name="problemmode" value="saveedit" />'.
994: &problem_edit_buttons();
995:
996: $return.='<hr style="clear:both;visibility:hidden;" />
997: </div></div>'
998: .&Apache::lonxml::message_location();
999: $return .= '<link rel="stylesheet" href="/adm/codemirror/codemirror-combined.css" />
1000: <script type="text/javascript" src="/adm/codemirror/codemirror-compressed-colorful.js"></script>';
1001:
1002: $return .= '<script type="text/javascript" src="/adm/jQuery/addons/jquery-scrolltofixed.js"></script>
1003: <script type="text/javascript">
1004: // unless internet explorer
1005: if (!(window.navigator.appName == "Microsoft Internet Explorer" && (document.documentMode || document.compatMode))){
1006: $(document).ready(
1007: function() {
1008: $(\'.LC_edit_actionbar\').scrollToFixed(
1009: {
1010: fixed: function(){
1011: $(this).find(\'.LC_edit_actionbar\').css(\'height\', \'31px\');
1012: }
1013: }
1014: );
1015: }
1016: );
1017: }
1018: </script>
1019: <table id="LC_edit_problem_colorful" border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
1020: return $return;
1.105 albertel 1021: }
1022:
1023: sub problem_edit_footer {
1.527 golterma 1024: my $resource = $env{'request.ambiguous'};
1.412 albertel 1025: return '</td></tr></table><br />
1026: <div class="LC_edit_problem_footer">
1.453 bisitz 1027: <hr />'.
1.423 www 1028: &problem_edit_buttons().'
1.459 bisitz 1029: <hr style="clear:both;" />
1.527 golterma 1030: <script type="text/javascript">
1031: restoreState("'.$resource.'");
1032: restoreScrollPosition("'.$resource.'");
1033: </script>
1.412 albertel 1034: </div>
1035: '.
1.342 albertel 1036: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 1037: }
1038:
1.235 albertel 1039: sub option {
1040: my ($value,$name) = @_;
1041: my $result ="<option value='".$value."' ";
1.284 albertel 1042: if ($env{'form.'.$name} eq $value) {
1.235 albertel 1043: $result.=" selected='on' ";
1044: }
1045: $result.='>';
1046: return $result;
1047: }
1048:
1.105 albertel 1049: sub problem_web_to_edit_header {
1.159 albertel 1050: my ($rndseed)=@_;
1.406 albertel 1051: my $result .= '<div class="LC_edit_problem_header">';
1052:
1053: if (!$Apache::lonhomework::parsing_a_task) {
1054: $result .=
1055: '<div class="LC_edit_problem_header_title">'.
1056: &mt('Problem Testing').
1057: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
1058: '</div>';
1059: } else {
1060: $result .=
1061: '<div class="LC_edit_problem_header_title">'.
1062: &mt('Task Testing').
1063: '</div>';
1064: }
1065:
1.315 albertel 1066: my $show_all_foils_text =
1067: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 1068: &mt('Show All Instances')
1069: : &mt('Show All Foils');
1.315 albertel 1070:
1.452 bisitz 1071: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
1072: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 1073: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 1074: $show_all.= ' /> '.$show_all_foils_text
1075: .'</label></span>';
1.406 albertel 1076:
1077:
1.384 albertel 1078:
1.406 albertel 1079: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 1080: if (!$Apache::lonhomework::parsing_a_task) {
1081: $result.="
1.406 albertel 1082: <div class='LC_edit_problem_header_row1'>
1083: <span class=\"LC_nobreak\">
1.405 albertel 1084: ".&mt("Problem Status:")."
1.235 albertel 1085: <select name='problemstate'>
1.270 albertel 1086: <option value=''></option>
1.235 albertel 1087: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
1088: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
1089: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
1090: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
1091: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
1092: </select>
1.406 albertel 1093: </span>
1094: <span class=\"LC_nobreak\">
1.405 albertel 1095: ".&mt("Problem Type:")."
1.235 albertel 1096: <select name='problemtype'>
1.270 albertel 1097: <option value=''></option>
1.509 bisitz 1098: ".&option('exam' ,'problemtype').&mt("Bubblesheet Exam Problem")."</option>
1.428 raeburn 1099: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 1100: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 1101: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
1102: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
1103: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 1104: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 1105: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 1106: </select>
1.406 albertel 1107: </span>
1108: $show_all
1109: </div>
1110: <div class='LC_edit_problem_header_row2'>
1111: <span class=\"LC_nobreak\">
1.405 albertel 1112: ".&mt("Feedback Mode:")."
1.235 albertel 1113: <select name='problemstatus'>
1114: <option value=''></option>
1.242 albertel 1115: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.517 bisitz 1116: ".&option('no', 'problemstatus').&mt("Don't Show Incorrect/Correct Feedback")."</option>
1.405 albertel 1117: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 1118: </select>
1.406 albertel 1119: </span>
1120: ";
1121:
1.376 albertel 1122: } elsif ($Apache::lonhomework::parsing_a_task) {
1123: $result.="
1.406 albertel 1124: <div class='LC_edit_problem_header_row1'>
1125: <span class=\"LC_nobreak\">
1.405 albertel 1126: ".&mt("Problem Status:")."
1.376 albertel 1127: <select name='problemstate'>
1128: <option value=''></option>
1129: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
1130: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
1131: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
1132: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
1133: </select>
1.406 albertel 1134: </span>
1135: $show_all
1136: ";
1137: }
1138: $result.='
1139: <span class="LC_nobreak">
1140: '.&mt('Apply style file: ').'
1141: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
1142: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
1143: </span>
1.422 www 1144: </div>
1145: <div class="LC_edit_problem_header_row1">'.
1146: &Apache::lonxml::renderingoptions().'
1.406 albertel 1147: </div>
1148: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
1149: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
1150: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
1151: </div>
1.453 bisitz 1152: <hr />
1.406 albertel 1153: <div class="LC_edit_problem_header_randomize_row">
1154: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
1155: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 1156: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 1157: $rndseed.'"
1158: onchange="javascript:document.lonhomework.changerandseed.click()" />';
1159:
1160: if (!$Apache::lonhomework::parsing_a_task) {
1161: my $numtoanalyze=$env{'form.numtoanalyze'};
1162: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 1163: $result .= '<span class="LC_nobreak">'.
1164: &mt('[_1] for [_2] versions.',
1.416 raeburn 1165: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 1166: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
1167: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 1168: $numtoanalyze.'" size="5" />').
1169: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
1170: '</span>';
1171:
1.313 albertel 1172: }
1.406 albertel 1173:
1174: $result.='
1175: </div>
1.453 bisitz 1176: <hr />
1.447 bisitz 1177: <div>';
1.416 raeburn 1178: $result.='<input type="hidden" name="problemmode" value="view" />';
1179: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
1180: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
1181: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
1182: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 1183: $result.='
1184: </div>
1.453 bisitz 1185: <hr />
1.409 albertel 1186: '.&Apache::lonxml::message_location().'
1.406 albertel 1187: </div>';
1.159 albertel 1188: return $result;
1.48 albertel 1189: }
1190:
1.65 albertel 1191: sub initialize_storage {
1.357 albertel 1192: my ($given_symb) = @_;
1.353 albertel 1193: undef(%Apache::lonhomework::results);
1194: undef(%Apache::lonhomework::history);
1.357 albertel 1195: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1196: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 1197:
1198: # anonymous users (CODEd exams) have no data
1199: if ($name eq 'anonymous'
1200: && !defined($domain)) {
1201: return;
1202: }
1203:
1.333 albertel 1204: if ($env{'request.state'} eq 'construct'
1205: || $symb eq ''
1206: || $Apache::lonhomework::type eq 'practice') {
1207:
1208: my $namespace = $symb || $env{'request.uri'};
1209: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 1210: ($env{'form.resetdata'} eq &mt('New Problem Variation')
1211: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 1212: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1213: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
1214: &Apache::lonxml::debug("Attempt reset");
1215: }
1.159 albertel 1216: %Apache::lonhomework::history=
1.333 albertel 1217: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.526 raeburn 1218: my ($temp)=keys(%Apache::lonhomework::history) ;
1.159 albertel 1219: &Apache::lonxml::debug("Return message of $temp");
1220: } else {
1221: %Apache::lonhomework::history=
1222: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1223: }
1.353 albertel 1224:
1.159 albertel 1225: #ignore error conditions
1.526 raeburn 1226: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1227: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 1228: }
1229:
1.435 jms 1230: =pod
1231:
1232: =item finalize_storage()
1233:
1.524 raeburn 1234: Stores away the result hash to a student's environment;
1.523 raeburn 1235: checks form.grade_ for specific values, otherwise stores
1236: to the running user's environment.
1.524 raeburn 1237:
1238: &check_correctness_changes() is called in two circumstances
1239: in which the results hash is to be stored permanently, for
1240: grading triggered by a student's submission, where feedback on
1241: correctness is to be provided to the student.
1242:
1243: 1. Immediately prior to storing the results hash
1244:
1245: To handle the case where a student's submission (and award) were
1246: stored after history was retrieved in &initialize_storage(), e.g.,
1247: if a student submitted answers in quick succession (e.g., from
1248: multiple tabs). &Apache::inputtags::hidealldata() is called for
1249: any parts with out-of-order storage (i.e., correct then incorrect,
1250: where awarded >= 1 when correct).
1251:
1252: 2. Immediately after storing the results hash
1253:
1254: To handle the case where lond on the student's homeserver returns
1255: delay:N -- where N is the number of transactions between the last
1256: retrieved in &initialize_storage() and the last stored immediately
1257: before permanent storage of the current transaction via
1258: lond::store_handler(). &Apache::grades::makehidden() is called
1259: for any parts with out-of-order storage (i.e., correct then incorrect,
1260: where awarded >= 1 when correct).
1261:
1262: Will call &store_aggregates() to increment totals for attempts,
1263: students, and corrects, if running user has student role.
1264:
1.435 jms 1265: =cut
1266:
1267:
1.65 albertel 1268: sub finalize_storage {
1.357 albertel 1269: my ($given_symb) = @_;
1.159 albertel 1270: my $result;
1.289 albertel 1271: if (%Apache::lonhomework::results) {
1.323 albertel 1272: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
1273: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 1274: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1275: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 1276: if ($env{'request.state'} eq 'construct'
1277: || $symb eq ''
1278: || $Apache::lonhomework::type eq 'practice') {
1279: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 1280: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 1281: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 1282: $namespace,'',$domain,$name);
1.159 albertel 1283: &Apache::lonxml::debug('Construct Store return message:'.$result);
1284: } else {
1.524 raeburn 1285: my ($laststore,$checkedparts,@parts,%postcorrect);
1286: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1287: (!$Apache::lonhomework::scantronmode) && (!defined($env{'form.grade_symb'})) &&
1288: (!defined($env{'form.grade_courseid'}))) {
1289: if ($Apache::lonhomework::history{'version'}) {
1290: $laststore = $Apache::lonhomework::history{'version'}.'='.
1291: $Apache::lonhomework::history{'timestamp'};
1292: } else {
1293: $laststore = '0=0';
1294: }
1295: my %record = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1296: if ($record{'version'}) {
1297: my ($newversion,$oldversion,$oldtimestamp);
1298: if ($Apache::lonhomework::history{'version'}) {
1299: $oldversion = $Apache::lonhomework::history{'version'};
1300: $oldtimestamp = $Apache::lonhomework::history{'timestamp'};
1301: } else {
1302: $oldversion = 0;
1303: $oldtimestamp = 0;
1304: }
1305: if ($record{'version'} > $oldversion) {
1306: if ($record{'timestamp'} >= $oldtimestamp) {
1307: $laststore = $record{'version'}.'='.$record{'timestamp'};
1308: $newversion = $record{'version'} + 1;
1309: $checkedparts = 1;
1310: foreach my $key (keys(%Apache::lonhomework::results)) {
1311: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1312: my $part = $1;
1313: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1314: push(@parts,$part);
1315: }
1316: }
1317: }
1318: if (@parts) {
1319: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1320: \%record,\@parts,$newversion,
1321: $oldversion);
1322: if (@parts_to_hide) {
1323: foreach my $part (@parts_to_hide) {
1324: $postcorrect{$part} = 1;
1325: &Apache::inputtags::hidealldata($part);
1326: }
1327: }
1328: }
1329: }
1330: }
1331: }
1332: }
1.159 albertel 1333: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
1.524 raeburn 1334: $symb,$courseid,$domain,$name,$laststore);
1335: if ($result =~ /^delay\:(\d+)$/) {
1336: my $numtrans = $1;
1337: my ($oldversion) = split(/=/,$laststore);
1338: if ($numtrans) {
1339: my $newversion = $oldversion + 1 + $numtrans;
1340: my @possparts;
1341: if ($checkedparts) {
1342: foreach my $part (@parts) {
1343: unless ($postcorrect{$part}) {
1344: push(@possparts,$part);
1345: }
1346: }
1347: } else {
1348: foreach my $key (keys(%Apache::lonhomework::results)) {
1349: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1350: my $part = $1;
1351: unless ($postcorrect{$part}) {
1352: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1353: push(@possparts,$part);
1354: }
1355: }
1356: }
1357: }
1358: }
1359: if (@possparts) {
1360: my %newrecord = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1361: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1362: \%newrecord,\@possparts,$newversion,
1363: $oldversion);
1364: if (@parts_to_hide) {
1365: my $partslist = join(',',@parts_to_hide);
1366: &Apache::grades::makehidden($newversion,$partslist,\%newrecord,$symb,$domain,$name,1);
1367: }
1368: }
1369: }
1370: }
1.159 albertel 1371: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 1372: &store_aggregates($symb,$courseid);
1.159 albertel 1373: }
1.323 albertel 1374: } else {
1375: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 1376: }
1.159 albertel 1377: return $result;
1.65 albertel 1378: }
1379:
1.435 jms 1380: =pod
1381:
1.524 raeburn 1382: =item check_correctness_changes()
1383:
1384: For all parts for which current results contain a solved status
1385: of "incorrect_attempted", check if there was a transaction in which
1386: solved was set to "correct_by_student" in the time since the last
1387: transaction (retrieved when &initialize_storage() was called i.e.,
1388: when &start_problem() was called), unless:
1389: (a) questiontype parameter is set to survey or anonymous survey (+/- credit)
1390: (b) problemstatus is set to no or no_feedback_ever
1391: If such a transaction exists, and did not occur after "reset status"
1392: by a user with grading privileges, then the current transaction is an
1393: example of an out-of-order transaction (i.e., incorrect occurring after
1394: correct). Accordingly, the current transaction should be hidden.
1395:
1396: =cut
1397:
1398:
1399: sub check_correctness_changes {
1400: my ($symb,$courseid,$domain,$name,$record,$parts,$newversion,$oldversion) = @_;
1401: my @parts_to_hide;
1402: unless ((ref($record) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
1403: return @parts_to_hide;
1404: }
1405: if (@{$parts}) {
1406: my $usec;
1407: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1408: ($env{'request.course.id'} eq $courseid)) {
1409: $usec = $env{'request.course.sec'};
1410: } else {
1411: $usec = &Apache::lonnet::getsection($domain,$name,$courseid);
1412: }
1413: foreach my $id (@{$parts}) {
1414: next if (($Apache::lonhomework::results{'resource.'.$id.'.type'} =~ /survey/) ||
1415: (&Apache::lonnet::EXT("resource.$id.problemstatus",$symb,
1416: $domain,$name,$usec,undef,$courseid) =~ /^no/));
1417: my $reset;
1418: for (my $i=$newversion-1; $i>=$oldversion; $i--) {
1419: if (($record->{$i.':resource.'.$id.'.regrader'}) &&
1420: ($record->{$i.':resource.'.$id.'.tries'} eq '') &&
1421: ($record->{$i.':resource.'.$id.'.award'} eq '')) {
1422: $reset = 1;
1423: } elsif (($record->{$i.":resource.$id.solved"} eq 'correct_by_student') &&
1424: ($record->{$i.":resource.$id.awarded"} >= 1)) {
1425: unless ($reset) {
1426: push(@parts_to_hide,$id);
1427: last;
1428: }
1429: }
1430: }
1431: }
1432: }
1433: return @parts_to_hide;
1434: }
1435:
1436: =pod
1437:
1.435 jms 1438: item store_aggregates()
1439:
1440: Sends hash of values to be incremented in nohist_resourcetracker.db
1441: for the course. Increments total number of attempts, unique students
1442: and corrects for each part for an instance of a problem, as appropriate.
1443:
1444: =cut
1445:
1.285 raeburn 1446: sub store_aggregates {
1447: my ($symb,$courseid) = @_;
1.479 raeburn 1448: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 1449: my @parts;
1.288 albertel 1450: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
1451: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 1452: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 1453: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 1454: push(@parts, $1);
1.285 raeburn 1455: }
1456: }
1.286 albertel 1457: foreach my $part (@parts) {
1.470 raeburn 1458: if ($env{'request.role'} =~/^st/) {
1459: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
1460: eq 'APPROX_ANS' ||
1461: $Apache::lonhomework::results{'resource.'.$part.'.award'}
1462: eq 'EXACT_ANS') {
1463: $aggregate{$symb."\0".$part."\0correct"} = 1;
1464: }
1465: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1466: $aggregate{$symb."\0".$part."\0users"} = 1;
1467: } else {
1468: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1469: if ($last_reset) {
1470: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1471: $aggregate{$symb."\0".$part."\0users"} = 1;
1472: }
1473: }
1474: }
1475: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 1476: }
1.470 raeburn 1477: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 1478: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
1479: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
1480: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
1481: $randtrycounter{$symb."\0".$part} = 1;
1482: } else {
1483: $anoncounter{$symb."\0".$part} = 1;
1484: }
1.470 raeburn 1485: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
1486: if ($needsrelease) {
1487: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
1488: if ($curr_required eq '') {
1.471 raeburn 1489: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1490: } else {
1491: my ($currmajor,$currminor) = split(/\./,$curr_required);
1492: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
1493: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 1494: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1495: }
1.292 raeburn 1496: }
1497: }
1.285 raeburn 1498: }
1499: }
1.526 raeburn 1500: if (keys(%aggregate) > 0) {
1.289 albertel 1501: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 1502: $cdomain,$cname);
1503: }
1.472 raeburn 1504: if (keys(%anoncounter) > 0) {
1.481 raeburn 1505: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
1506: $cdomain,$cname);
1.472 raeburn 1507: }
1.479 raeburn 1508: if (keys(%randtrycounter) > 0) {
1.481 raeburn 1509: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
1510: $cdomain,$cname);
1.479 raeburn 1511: }
1.292 raeburn 1512: }
1.289 albertel 1513:
1.65 albertel 1514: sub checkout_msg {
1.211 albertel 1515: my %lt=&Apache::lonlocal::texthash(
1516: 'resource'=>'The resource needs to be checked out',
1517: '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.',
1518: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
1.509 bisitz 1519: 'checkout'=>'Check out Bubblesheet Exam for Viewing',
1520: 'checkout?'=>'Check out Bubblesheet Exam?');
1.352 albertel 1521: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 1522: return (<<ENDCHECKOUT);
1.211 albertel 1523: <h2>$lt{'resource'}</h2>
1524: <p>$lt{'id_expln'}</p>
1.449 bisitz 1525: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 1526: <form name="checkout" method="post" action="$uri">
1.91 albertel 1527: <input type="hidden" name="doescheckout" value="yes" />
1.514 bisitz 1528: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onclick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 1529: </form>
1530: ENDCHECKOUT
1531: }
1532:
1.252 albertel 1533: sub firstaccess_msg {
1.253 albertel 1534: my ($time,$symb)=@_;
1.414 albertel 1535: my $result;
1536: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1537: if ($interval[1] eq 'map') {
1538: my ($map)=&Apache::lonnet::decode_symb($symb);
1539: my $foldertitle=&Apache::lonnet::gettitle($map);
1540:
1541: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 1542: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
1543: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1544: ,$foldertitle,$time)."</p>";
1.414 albertel 1545: } elsif ($interval[1] eq 'course') {
1546: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 1547: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 1548: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 1549: ,$course,$time)."</p>";
1.414 albertel 1550: } else {
1551: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1552: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1553: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1554: ,$title,$time)."</p>";
1.414 albertel 1555: }
1.352 albertel 1556: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1557: my $buttontext = &mt('Show Resource');
1558: my $timertext = &mt('Start Timer?');
1.414 albertel 1559: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1560: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1561: <input type="hidden" name="markaccess" value="yes" />
1.514 bisitz 1562: <input type="button" name="accessbutton" value="$buttontext" onclick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1563: </form>
1564: ENDCHECKOUT
1.414 albertel 1565: return $result;
1.252 albertel 1566: }
1567:
1.204 albertel 1568: sub init_problem_globals {
1569: my ($type)=@_;
1570: #initialize globals
1.308 foxr 1571: # For problems, we start out in part 0 (outside a <part> tag).
1572: # and part 0 is used to describe the main body of the <problem>
1573: #
1.204 albertel 1574: if ($type eq 'problem') {
1575: $Apache::inputtags::part='0';
1576: @Apache::inputtags::partlist=('0');
1.405 albertel 1577: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1578: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1579:
1.266 albertel 1580: } elsif ($type eq 'library') {
1.204 albertel 1581: $Apache::inputtags::part='';
1582: @Apache::inputtags::partlist=();
1.405 albertel 1583: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1584: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1585:
1.304 albertel 1586: } elsif ($type eq 'Task') {
1587: $Apache::inputtags::part='0';
1588: @Apache::inputtags::partlist=('0');
1.405 albertel 1589: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1590: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1591: }
1.477 www 1592: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1593: @Apache::inputtags::responselist = ();
1594: @Apache::inputtags::importlist = ();
1595: @Apache::inputtags::previous=();
1596: @Apache::inputtags::previous_version=();
1597: $Apache::structuretags::printanswer='No';
1598: @Apache::structuretags::whileconds=();
1599: @Apache::structuretags::whilebody=();
1600: @Apache::structuretags::whileline=();
1601: $Apache::lonhomework::scantronmode=0;
1602: undef($Apache::lonhomework::name);
1.358 albertel 1603: undef($Apache::lonhomework::default_type);
1604: undef($Apache::lonhomework::type);
1.204 albertel 1605: }
1606:
1607: sub reset_problem_globals {
1608: my ($type)=@_;
1609: undef(%Apache::lonhomework::history);
1610: undef(%Apache::lonhomework::results);
1611: undef($Apache::inputtags::part);
1.498 raeburn 1612: if ($type eq 'Task') {
1613: undef($Apache::inputtags::slot_name);
1.528 raeburn 1614: } elsif ($type eq 'problem') {
1615: undef($Apache::lonhomework::rawrndseed);
1.498 raeburn 1616: }
1.208 albertel 1617: #don't undef this, lonhomework.pm takes care of this, we use this to
1618: #detect if we try to do 2 problems in one file
1619: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1620: undef($Apache::lonhomework::name);
1.358 albertel 1621: undef($Apache::lonhomework::default_type);
1622: undef($Apache::lonhomework::type);
1623: undef($Apache::lonhomework::scantronmode);
1624: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1625: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1626: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1627: }
1628:
1.241 albertel 1629: sub set_problem_state {
1.240 albertel 1630: my ($part)=@_;
1.284 albertel 1631: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1632: $Apache::lonhomework::history{"resource.$part.solved"}=
1633: 'correct_by_student';
1634: }
1635: }
1636:
1.241 albertel 1637: sub get_problem_status {
1638: my ($part)=@_;
1.267 albertel 1639: my $problem_status;
1.284 albertel 1640: if ($env{'request.state'} eq 'construct' &&
1641: defined($env{'form.problemstatus'})) {
1642: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1643: } else {
1644: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1645: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1646: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1647: }
1648: return $problem_status;
1649: }
1650:
1.9 albertel 1651: sub start_problem {
1.326 albertel 1652: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1653:
1.311 foxr 1654: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1655: if (!$Apache::lonxml::metamode) {
1656: &Apache::lonxml::startredirection();
1657: }
1.311 foxr 1658:
1.308 foxr 1659: # Problems don't nest and we don't allow more than one <problem> in
1660: # a .problem file.
1661: #
1.184 albertel 1662: if ( $Apache::inputtags::part ne '' ||
1663: $Apache::lonhomework::parsing_a_problem) {
1664: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1665: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1666: return '';
1667: }
1.184 albertel 1668:
1669: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1670: &init_problem_globals('problem');
1.166 albertel 1671:
1.284 albertel 1672: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1673: $Apache::lonhomework::scantronmode=1;
1674: }
1.161 albertel 1675:
1.159 albertel 1676: if ($target ne 'analyze') {
1.415 raeburn 1677: my $type = &Apache::lonnet::EXT('resource.0.type');
1678: $Apache::lonhomework::type=$type;
1.284 albertel 1679: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1680: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1681: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1682: }
1.332 albertel 1683: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1684: }
1.164 albertel 1685: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1686: my $uri=$env{'request.uri'};
1.159 albertel 1687: if ($uri=~/\.(\w+)$/) {
1688: $Apache::lonhomework::type=$1;
1689: &Apache::lonxml::debug("Using type of $1");
1690: } else {
1691: $Apache::lonhomework::type='problem';
1692: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1693: }
1.87 albertel 1694: }
1.301 albertel 1695: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1696:
1.363 albertel 1697: &initialize_storage();
1.389 albertel 1698: if ($target ne 'analyze'
1699: && $env{'request.state'} eq 'construct') {
1700: &set_problem_state('0');
1701: }
1702:
1.366 albertel 1703: if ($target eq 'web') {
1704: &Apache::lonxml::debug(" grading history ");
1705: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1706: }
1.363 albertel 1707:
1.159 albertel 1708: #added vars to the scripting enviroment
1.213 albertel 1709: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1710: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1711: &Apache::run::run($expression,$safeeval);
1.159 albertel 1712: my $status;
1713: my $accessmsg;
1.508 raeburn 1714: my $resource_due;
1.159 albertel 1715:
1.343 albertel 1716: my $name= &get_resource_name($parstack,$safeeval);
1.528 raeburn 1717: my ($result,$form_tag_start,$slot_name,$slot,$probpartlist);
1.506 raeburn 1718:
1719: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1720: $target eq 'tex') {
1721: if ($env{'form.markaccess'}) {
1722: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1.519 raeburn 1723: &Apache::lonnet::set_first_access($interval[1],$interval[0]);
1.506 raeburn 1724: }
1725:
1726: ($status,$accessmsg,$slot_name,$slot) =
1727: &Apache::lonhomework::check_slot_access('0','problem');
1728: push (@Apache::inputtags::status,$status);
1729: }
1730:
1.354 albertel 1731: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1732: || $target eq 'edit') {
1.528 raeburn 1733: ($result,$form_tag_start,$probpartlist) =
1.350 albertel 1734: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1735: $name);
1.528 raeburn 1736: } elsif (($target eq 'grade') && ($Apache::lonhomework::type eq 'randomizetry')) {
1737: my ($symb)= &Apache::lonnet::whichuser();
1738: my $navmap = Apache::lonnavmaps::navmap->new();
1739: if (ref($navmap)) {
1740: my $res = $navmap->getBySymb($symb);
1741: if (ref($res)) {
1742: $probpartlist = $res->parts();
1743: }
1744: }
1.350 albertel 1745: }
1746:
1.284 albertel 1747: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1748:
1.479 raeburn 1749: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1750: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1751: $target eq 'tex') {
1.479 raeburn 1752:
1.159 albertel 1753: #handle rand seed in construction space
1.528 raeburn 1754: my $rndseed=&setup_rndseed($safeeval,$target,$probpartlist);
1755: if (($target eq 'grade') && &Apache::response::submitted()) {
1756: if ($Apache::lonhomework::type eq 'randomizetry') {
1.529 raeburn 1757: $Apache::lonhomework::results{'resource.0.rndseed'}=$rndseed;
1.528 raeburn 1758: } else {
1759: my @parts;
1760: if (ref($probpartlist) eq 'ARRAY') {
1761: @parts = @{$probpartlist};
1762: }
1763: unless (@parts) {
1.529 raeburn 1764: $Apache::lonhomework::results{'resource.0.rndseed'}=$Apache::lonhomework::rawrndseed;
1.528 raeburn 1765: }
1766: }
1767: }
1.367 albertel 1768: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 1769:
1.333 albertel 1770: if ($env{'request.state'} ne "construct" &&
1771: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1772: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1773: $rndseed.'" />'.
1774: '<input type="submit" name="resetdata"
1775: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1776: if (exists($env{'form.username'})) {
1777: $form_tag_start.=
1.164 albertel 1778: '<input type="hidden" name="username"
1.284 albertel 1779: value="'.$env{'form.username'}.'" />';
1.334 albertel 1780: }
1.462 raeburn 1781: if ($env{'request.role.adv'}) {
1782: $form_tag_start.= ' <label class="LC_nobreak">'
1783: .'<input type="checkbox" name="showallfoils"';
1784: if (defined($env{'form.showallfoils'})) {
1785: $form_tag_start.=' checked="checked"';
1786: }
1787: $form_tag_start.= ' /> '
1788: .&mt('Show All Foils')
1789: .'</label>';
1790: }
1.417 www 1791: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1792: $form_tag_start.=&practice_problem_header();
1.417 www 1793: }
1.462 raeburn 1794: $form_tag_start.='<hr />';
1.479 raeburn 1795: } elsif (($env{'request.state'} ne "construct") &&
1796: ($Apache::lonhomework::type eq 'randomizetry') &&
1797: ($status eq 'CAN_ANSWER')) {
1798: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1799: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1800: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1801: }
1.324 albertel 1802:
1.159 albertel 1803: my $expression='$external::datestatus="'.$status.'";';
1804: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1805: &Apache::run::run($expression,$safeeval);
1806: &Apache::lonxml::debug("Got $status");
1.324 albertel 1807:
1.159 albertel 1808: if (( $status eq 'CLOSED' ) ||
1809: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1810: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1811: ( $status eq 'BANNED') ||
1.216 albertel 1812: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1813: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1814: ( $status eq 'NOTRESERVABLE') ||
1815: ( $status eq 'RESERVABLE') ||
1816: ( $status eq 'RESERVABLE_LATER') ||
1.216 albertel 1817: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1818: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1819: $style);
1.159 albertel 1820: if ( $target eq "web" ) {
1.343 albertel 1821: my $msg;
1.159 albertel 1822: if ($status eq 'UNAVAILABLE') {
1.504 golterma 1823: $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1.441 raeburn 1824: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.504 golterma 1825: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1.499 raeburn 1826: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1827: ($status eq 'NOTRESERVABLE')) {
1.504 golterma 1828: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1.253 albertel 1829: } elsif ($status ne 'NOT_YET_VIEWED') {
1.504 golterma 1830: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1.499 raeburn 1831: }
1.216 albertel 1832: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1833: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1834: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1835: $msg.=&checkout_msg();
1.252 albertel 1836: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1837: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1838: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1839: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.499 raeburn 1840: } elsif ($status eq 'RESERVABLE') {
1841: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1842: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1843: '<br />'.
1844: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1845: } elsif ($status eq 'RESERVABLE_LATER') {
1846: $msg.=&mt('Window to make a reservation will open [_1].',
1847: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1848: } elsif ($status eq 'NOTRESERVABLE') {
1849: $msg.=&mt('Not available to make a reservation.');
1.159 albertel 1850: }
1851: $result.=$msg.'<br />';
1852: } elsif ($target eq 'tex') {
1.332 albertel 1853: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1854: : '\begin{minipage}{\textwidth}';
1.443 foxr 1855: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1856: $startminipage.'\vskip 0 mm';
1.159 albertel 1857: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1858: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1859: } else {
1.211 albertel 1860: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1861: }
1862: }
1.324 albertel 1863: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1864: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1865: $style);
1.324 albertel 1866: if ($target eq 'web') {
1.375 albertel 1867: $result .=
1868: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1869: } elsif ($target eq 'grade') {
1870: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1871: 'problem');
1872: }
1.159 albertel 1873: } elsif ($target eq 'web') {
1.508 raeburn 1874: if ($status eq 'CAN_ANSWER') {
1875: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1876: if ($slot_name ne '') {
1877: my $checked_in =
1878: $Apache::lonhomework::history{'resource.0.checkedin'};
1879: if ($checked_in eq '') {
1880: # unproctored slot access, self checkin
1881: &Apache::bridgetask::check_in('problem',undef,undef,
1882: $slot_name);
1883: $checked_in =
1884: $Apache::lonhomework::results{"resource.0.checkedin"};
1885: }
1886: if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1887: if ($slot->{'starttime'} < time()) {
1888: if (!$resource_due) {
1889: $resource_due = $slot->{'endtime'};
1890: } elsif ($slot->{'endtime'} < $resource_due) {
1891: $resource_due = $slot->{'endtime'};
1892: }
1893: }
1894: }
1895: }
1896: if ($resource_due) {
1897: my $time_left = $resource_due - time();
1898: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1899: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1900: }
1901: }
1902: }
1.368 albertel 1903: $result.="\n $form_tag_start \t".
1.227 albertel 1904: '<input type="hidden" name="submitted" value="yes" />';
1905: # create a page header and exit
1.284 albertel 1906: if ($env{'request.state'} eq "construct") {
1907: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1908: if ($Apache::lonhomework::type eq 'practice') {
1909: $result.= '<input type="submit" name="resetdata" '.
1910: 'value="'.&mt('New Problem Variation').'" />'.
1911: &practice_problem_header().'<hr />';
1912: }
1.227 albertel 1913: }
1914: # if we are viewing someone else preserve that info
1.284 albertel 1915: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1916: foreach my $field ('symb','courseid','domain','username') {
1917: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1918: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1919: }
1.479 raeburn 1920: foreach my $field ('trial','questiontype') {
1921: if ($env{"form.grade_$field"} ne '') {
1922: $result .= '<input type="hidden" name="grade_'.$field.
1923: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1924: }
1925: }
1.159 albertel 1926: }
1.490 raeburn 1927: if ($env{'form.grade_imsexport'}) {
1928: $result = '';
1929: }
1.159 albertel 1930: } elsif ($target eq 'tex') {
1.319 foxr 1931: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 1932: $result .= &select_metadata_hyphenation();
1933:
1.319 foxr 1934:
1.99 sakharuk 1935: }
1.159 albertel 1936: } elsif ($target eq 'edit') {
1.343 albertel 1937: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1938: $Apache::lonxml::warnings_error_header=
1939: &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 1940: my $temp=&Apache::edit::insertlist($target,$token);
1941: $result.=$temp;
1942: } elsif ($target eq 'modified') {
1943: $result=$token->[4];
1944: } else {
1945: # page_start returned a starting result, delete it if we don't need it
1946: $result = '';
1.99 sakharuk 1947: }
1.159 albertel 1948: return $result;
1.9 albertel 1949: }
1950:
1951: sub end_problem {
1.159 albertel 1952: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1953: my $result;
1.310 foxr 1954:
1.321 albertel 1955: if (!$Apache::lonxml::metamode) {
1956: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1957: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1958: }
1.319 foxr 1959:
1960: if ($target eq 'tex') {
1.321 albertel 1961: # Figure out the front matter and replace the
1962: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1963: # this in end_problem because whether or not we display due
1964: # dates depends on whether due dates have already been
1965: # displayed in the problem parts.
1966:
1.319 foxr 1967: my $frontmatter = '';
1968: my $startminipage = '';
1969: if (not $env{'form.problem_split'}=~/yes/) {
1970: $startminipage = '\begin{minipage}{\textwidth}';
1971: }
1972: my $id = $Apache::inputtags::part;
1973: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1974: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.526 raeburn 1975: my @packages = split(/,/,$packages);
1.319 foxr 1976: my $allow_print_points = 0;
1977: foreach my $partial_key (@packages) {
1978: if ($partial_key=~m/^part_0$/) {
1979: $allow_print_points=1;
1980: }
1981: }
1982: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1983: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1984: if (lc($env{'course.'.$env{'request.course.id'}.
1985: '.disableexampointprint'}) eq 'yes') {
1986: $allow_print_points=0;
1987: }
1988: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1989: 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 1990: &clear_required_languages();
1.319 foxr 1991: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1992: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1993:
1994: # Figure out what the due date is and if we need to print
1995: # it in the problem header. We have been logging the
1996: # last due date written to file.
1997:
1998: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1999: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 2000: my $duedate_text = &mt('Due date: [_1]'
2001: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 2002: my $temp_file;
2003: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
2004:
2005: # Figure out what the last printed due date is or set it
2006: # to the epoch if no duedates have been printed.
2007:
2008: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
2009: if (-e $filename) {
2010: $temp_file = Apache::File->new($filename);
2011: my @due_file = <$temp_file>;
2012: $due_file_content = $due_file[$#due_file];
2013: chomp $due_file_content;
2014: }
2015:
2016: # We display the due date iff it is not the same as the last
2017: # duedate in problem header ($due_file_content), and
2018: # none of our parts displayed a duedate.
2019: #
2020: my $parts_with_displayduedate;
2021: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
2022: $parts_with_displayduedate =
2023: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
2024: } else {
2025: $parts_with_displayduedate = 0;
2026: }
2027: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
2028: $temp_file = Apache::File->new('>'.$filename);
2029: print $temp_file "$duetime\n";
2030: if (not $env{'request.symb'} =~ m/\.page_/) {
2031: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
2032: $frontmatter .= $begin_doc.
1.448 bisitz 2033: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 2034: } else {
2035: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 2036: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 2037: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2038: }
1.319 foxr 2039: }
2040: } else {
1.448 bisitz 2041: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 2042: }
2043: } else {
2044: if (not $env{'request.symb'} =~ m/\.page_/) {
2045: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 2046: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 2047: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2048: }
1.319 foxr 2049: } else {
1.381 albertel 2050: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 2051: }
2052: }
2053: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
2054: }
2055:
1.159 albertel 2056: my $status=$Apache::inputtags::status['-1'];
2057: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
2058: $target eq 'tex') {
1.249 albertel 2059: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 2060: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 2061: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
2062: &Apache::inputtags::grade;
1.324 albertel 2063: } elsif ($status eq 'NEEDS_CHECKIN') {
2064: # no need to grade, and don't want to hide data
1.249 albertel 2065: } else {
2066: # move any submission data to .hidden
2067: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2068: }
1.159 albertel 2069: } elsif ( ($target eq 'web' || $target eq 'tex') &&
2070: $Apache::inputtags::part eq '0' &&
1.490 raeburn 2071: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
2072: && !$env{'form.grade_imsexport'}) {
1.159 albertel 2073: # if part is zero, no <part>s existed, so we need show the current
2074: # grading status
2075: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
2076: $result.= $gradestatus;
2077: }
2078: if (
1.284 albertel 2079: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 2080: ($target eq 'answer') || ($target eq 'tex')
2081: ) {
1.490 raeburn 2082: if (($target ne 'tex') &&
2083: ($env{'form.answer_output_mode'} ne 'tex') &&
2084: (!$env{'form.grade_imsexport'})) {
1.254 www 2085: $result.="</form>";
1.159 albertel 2086: }
2087: if ($target eq 'web') {
1.507 raeburn 2088: #
2089: # Closing </body></html> not added by end_page().
2090: # Added separately at end of this routine, after added
2091: # <script></script> so document will be valid xhtml.
2092: #
2093: $result.= &Apache::loncommon::end_page({'discussion' => 1,
2094: 'notbody' => 1});
1.159 albertel 2095: } elsif ($target eq 'tex') {
1.178 sakharuk 2096: my $endminipage = '';
1.284 albertel 2097: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 2098: $endminipage = '\end{minipage}';
2099: }
1.284 albertel 2100: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 2101: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 2102: } else {
1.262 sakharuk 2103: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 2104: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 2105: $result .= $endminipage.'\end{document} ';
2106: } else {
1.382 albertel 2107: $result .= $endminipage;
1.262 sakharuk 2108: }
1.159 albertel 2109: }
2110: }
2111: }
1.476 www 2112: if ($target eq 'web') {
2113: $result.=&Apache::functionplotresponse::init_script();
2114: }
1.159 albertel 2115: if ($target eq 'grade') {
2116: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
2117: &finalize_storage();
2118: }
1.284 albertel 2119: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
2120: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 2121: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 2122: # normally we get it from above, but in CSTR
1.172 albertel 2123: # we always show answer mode too.
1.159 albertel 2124: }
2125: } elsif ($target eq 'meta') {
2126: if ($Apache::inputtags::part eq '0') {
1.179 albertel 2127: @Apache::inputtags::response=();
1.159 albertel 2128: $result=&Apache::response::mandatory_part_meta;
2129: }
1.215 albertel 2130: $result.=&Apache::response::meta_part_order();
1.258 albertel 2131: $result.=&Apache::response::meta_response_order();
1.159 albertel 2132: } elsif ($target eq 'edit') {
2133: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 2134: $result .= &problem_edit_footer();
1.320 albertel 2135: } elsif ($target eq 'modified') {
2136: $result .= $token->[2];
1.159 albertel 2137: }
1.155 albertel 2138:
1.284 albertel 2139: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 2140: &Apache::inputtags::check_for_duplicate_ids();
2141: }
1.204 albertel 2142:
2143: &reset_problem_globals('problem');
1.159 albertel 2144:
1.502 foxr 2145: #
2146: # This shouild be just above the return so that the
2147: # time put in the javascript is as late as possible in the
2148: # computation:
2149: #
2150: if ($target eq 'web') {
2151: $result .= &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 2152: #
2153: # Closing tags delayed so any <script></script> tags
2154: # not in head can appear inside body, for valid xhtml.
2155: #
2156: $result .= "</body>\n</html>";
1.502 foxr 2157: }
1.159 albertel 2158: return $result;
1.48 albertel 2159: }
2160:
1.108 albertel 2161:
1.48 albertel 2162: sub start_library {
1.159 albertel 2163: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 2164: my ($result,$form_tag_start);
1.371 albertel 2165: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 2166: &init_problem_globals('library');
2167: $Apache::lonhomework::type='problem';
2168: }
1.159 albertel 2169: if ($target eq 'edit') {
1.343 albertel 2170: ($result,$form_tag_start)=
2171: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2172: 'Edit');
2173: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 2174: my $temp=&Apache::edit::insertlist($target,$token);
2175: $result.=$temp;
2176: } elsif ($target eq 'modified') {
2177: $result=$token->[4];
1.340 albertel 2178: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 2179: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 2180: && $env{'request.state'} eq "construct" ) {
1.159 albertel 2181: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 2182: ($result,$form_tag_start)=
2183: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2184: $name);
1.479 raeburn 2185: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 2186: $result.=" \n $form_tag_start".
1.159 albertel 2187: '<input type="hidden" name="submitted" value="yes" />';
2188: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 2189: if ($Apache::lonhomework::type eq 'practice') {
2190: $result.= '<input type="submit" name="resetdata" '.
2191: 'value="'.&mt('New Problem Variation').'" />'.
2192: &practice_problem_header().'<hr />';
2193: }
1.159 albertel 2194: }
2195: return $result;
1.48 albertel 2196: }
2197:
2198: sub end_library {
1.159 albertel 2199: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2200: my $result='';
2201: if ($target eq 'edit') {
2202: $result=&problem_edit_footer();
1.371 albertel 2203: } elsif ($target eq 'web'
2204: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
2205: && $env{'request.state'} eq "construct") {
1.349 albertel 2206: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 2207: }
1.371 albertel 2208: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
2209: &reset_problem_globals('library');
2210: }
1.159 albertel 2211: return $result;
1.197 www 2212: }
2213:
2214: sub start_definetag {
1.326 albertel 2215: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 2216:
2217: my $result;
2218:
2219: my $name = $token->[2]->{'name'};
1.326 albertel 2220: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 2221: if ($target eq 'web') {
2222: if ($name=~/^\//) {
2223: $result=
2224: '<br /><table class="LC_sty_end"><tr><th>'.
2225: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2226: } else {
2227: $result=
2228: '<br /><table class="LC_sty_begin"><tr><th>'.
2229: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2230: }
2231: $skip = &HTML::Entities::encode($skip, '<>&"');
2232: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 2233: }
2234: return $result;
2235: }
2236:
2237: sub end_definetag {
2238: return '';
1.1 albertel 2239: }
2240:
2241: sub start_block {
1.201 albertel 2242: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 2243:
2244: my $result;
1.1 albertel 2245:
1.339 albertel 2246: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2247: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 2248: my $code = $token->[2]->{'condition'};
1.385 albertel 2249: if (defined($code) && $code ne '') {
1.137 albertel 2250: if (!$Apache::lonxml::default_homework_loaded) {
2251: &Apache::lonxml::default_homework_load($safeeval);
2252: }
1.131 albertel 2253: $result = &Apache::run::run($code,$safeeval);
2254: &Apache::lonxml::debug("block :$code: returned :$result:");
2255: } else {
2256: $result='1';
2257: }
2258: if ( ! $result ) {
1.201 albertel 2259: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 2260: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2261: }
2262: $result='';
2263: } elsif ($target eq 'edit') {
2264: $result .=&Apache::edit::tag_start($target,$token);
2265: $result .=&Apache::edit::text_arg('Test Condition:','condition',
2266: $token,40);
2267: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2268: } elsif ($target eq 'modified') {
2269: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2270: $safeeval,'condition');
2271: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 2272: }
1.131 albertel 2273: return $result;
1.1 albertel 2274: }
2275:
2276: sub end_block {
1.167 www 2277: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2278: my $result;
2279: if ($target eq "edit") {
2280: $result.= &Apache::edit::tag_end($target,$token,'');
2281: }
2282: return $result;
2283: }
1.500 foxr 2284: #
2285: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
2286: # ...
2287: # </languageblock>
2288: #
2289: # This declares the intent to provide content that can be rendered in the
2290: # set of languages in the include specificatino but not in the exclude
2291: # specification. If a currently preferred language is in the include list
2292: # the content in the <languageblock>...</languageblock> is rendered
2293: # If the currently preferred language is in the exclude list,
2294: # the content in the <languageblock>..></languageblock is not rendered.
2295: #
2296: # Pathalogical case handling:
2297: # - Include specified, without the preferred language but exclude specified
2298: # also without the preferred langauge results in rendering the block.
2299: # - Exclude specified without include and excluden not containing a
2300: # preferred language renders the block.
2301: # - Include and exclude both specifying the preferred language does not
2302: # render the block.
2303: # - If neither include/exclude is specified, the block gets rendered.
2304: #
2305: # This tag has no effect when target is in {edit, modified}
2306: #
1.167 www 2307: sub start_languageblock {
1.201 albertel 2308: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 2309:
1.500 foxr 2310: my $result = '';
1.167 www 2311:
1.339 albertel 2312: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2313: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 2314: my $include = $token->[2]->{'include'};
2315: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 2316: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 2317:
2318: # This should not even happen, since we should at least have the server language
2319:
2320: if (!$preferred_languages[0]) {
2321: $preferred_languages[0]='en';
2322: }
2323:
2324: # Now loop over all languages in order of preference
2325:
2326: my $render;
1.398 www 2327: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 2328:
2329: # If neither include/nor exlude is present the block is going
2330: # to get rendered.
2331:
1.399 www 2332: my $found=0;
1.500 foxr 2333: $render=1;
2334:
2335: # If include is specified, don't render the block
2336: # unless the preferred language is included in the set.
2337:
1.398 www 2338: if ($include) {
1.500 foxr 2339: $render=0;
1.398 www 2340: foreach my $included_language (split(/\,/,$include)) {
2341: if ($included_language eq $preferred_language) {
1.500 foxr 2342: $render=1;
1.399 www 2343: $found=1;
1.500 foxr 2344: last; # Only need to find the first.
1.398 www 2345: }
2346: }
2347: }
1.500 foxr 2348: # Do we have an exclude argument?
2349: # If so, and one of the languages matches a preferred language
2350: # inhibit rendering the block. Note that in the pathalogical case the
2351: # author has specified a preferred language in both the include and exclude
2352: # attribte exclude is preferred.
2353:
1.398 www 2354: if ($exclude) {
1.500 foxr 2355: $render=1;
1.398 www 2356: foreach my $excluded_language (split(/\,/,$exclude)) {
2357: if ($excluded_language eq $preferred_language) {
1.500 foxr 2358: $render=0;
1.399 www 2359: $found=1;
1.500 foxr 2360: last; # Only need to find the first.
1.398 www 2361: }
2362: }
2363: }
1.500 foxr 2364: if ($found) {
2365: last; # Done on any match of include or exclude.
2366: }
1.398 www 2367: }
1.500 foxr 2368: # If $render not true skip the entire block until </languageblock>
2369: #
2370:
2371: if ( ! $render ) {
1.201 albertel 2372: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
2373: $style);
2374: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2375: }
1.500 foxr 2376: # If $render is true, we've not skipped the contents of the <languageglock>
2377: # and the normal loncapa processing flow will render it as a matter of course.
2378:
1.167 www 2379: } elsif ($target eq 'edit') {
2380: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2381: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 2382: $token,40);
1.211 albertel 2383: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 2384: $token,40);
2385: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2386: } elsif ($target eq 'modified') {
2387: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 2388: $safeeval,'include',
2389: 'exclude');
1.167 www 2390: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2391: }
2392: return $result;
2393: }
2394:
2395: sub end_languageblock {
1.170 www 2396: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2397: my $result;
1.201 albertel 2398: if ($target eq "edit") {
1.170 www 2399: $result.= &Apache::edit::tag_end($target,$token,'');
2400: }
2401: return $result;
2402: }
1.500 foxr 2403: # languagblock specific tags:
2404: {
2405: # For chunks of a resource that has translations, this hash contains
2406: # the translations available indexed by language name.
2407: #
2408:
2409: my %available_texts;
1.170 www 2410:
1.500 foxr 2411: # <translated> starts a block of a resource that has multiple translations.
2412: # See the <lang> tag as well.
2413: # When </translated> is encountered if there is a translation for the
2414: # currently preferred language, that is rendered inthe web/tex/webgrade
2415: # targets. Otherwise, the default text is rendered.
2416: #
2417: # Note that <lang> is only registered for the duration of the
2418: # <translated>...</translated> block
2419: #
2420: # Pathalogical case handling:
2421: # - If there is no <lang> that specifies a 'default' and there is no
2422: # translation that matches a preferred language, nothing is rendered.
2423: # - Nested <translated>...</translated> might be linguistically supported by
2424: # XML due to the stack nature of tag registration(?) however the rendered
2425: # output will be incorrect because there is only one %available_texts
2426: # has and end_translated clears it.
2427: # - Material outside of a <lang>...</lang> block within the
2428: # <translated>...<translated> block won't render either e.g.:
2429: # <translated>
2430: # The following will be in your preferred langauge:
2431: # <lang which='en'>
2432: # This section in english
2433: # </lang>
2434: # <lang which='sgeiso'>
2435: # Hier es ist auf Deutsch.
2436: # </lang>
2437: # <lang which='sfriso'>
2438: # En Francais
2439: # </lang>
2440: # </translated>
2441: #
2442: # The introductory text prior to the first <lang> tag is not rendered.
2443: #
1.397 albertel 2444: sub start_translated {
2445: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2446: &Apache::lonxml::register('Apache::structuretags',('lang'));
2447: undef(%available_texts);
2448: }
2449:
2450: sub end_translated {
2451: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2452: my $result;
2453: #show the translation on viewable targets
2454: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
2455: # or non-viewable targets, if it's embedded in something that
2456: # wants the output
2457: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
2458: && &Apache::lonxml::in_redirection() ) ) {
2459: my @possibilities = keys(%available_texts);
2460: my $which =
2461: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 2462: if ($target eq 'tex') {
2463: $result = &select_hyphenation($which);
2464: }
2465: $result .= $available_texts{$which};
2466: if ($target eq 'tex') {
2467: $result .= &select_metadata_hyphenation(); # Restore original language.
2468: }
1.397 albertel 2469: }
2470: undef(%available_texts);
2471: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
2472: return $result;
2473: }
2474:
1.500 foxr 2475: # <lang [which='language-name'] [other='lang1,lang2...']>
2476: # Specifies that the block contained within it is a translation
2477: # for a specific language specified by the 'which' attribute. The
2478: # 'other' attribute can be used by itself or in conjunction with
2479: # which to specify this tag _may_ be used as a translation for some
2480: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
2481: # specifying that the block provides a translation for US (primary)
2482: # Canadian, Australian and UK Englush.
2483: #
2484: # Comment: this seems a bit silly why not just support a list of languages
2485: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
2486: #
2487: # Effect:
2488: # The material within the <lang>..</lang> block is stored in the
2489: # specified set of $available_texts hash entries, the appropriate one
2490: # is selected at </translated> time.
2491: #
2492: # Pathalogical case handling:
2493: # If a language occurs multiple times within a <translated> block,
2494: # only the last one is rendered e.g.:
2495: #
2496: # <translated>
2497: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
2498: # Red green color blindness is quite common affecting about 7.8% of
2499: # the male population, but onloy about .65% of the female population.
2500: # </lang>
2501: # Red green colour blindness is quite common affecting about 7.8% of
2502: # the male population, but onloy about .65% of the female population.
2503: # <lang which='seniso', other='senisoCA,senisoAU'>
2504: # </translated>
2505: #
2506: # renders the correct spelling of color (colour) for people who have specified
2507: # a preferred language that is one of the British Commonwealth languages
2508: # even though those are also listed as valid selections for the US english
2509: # <lang> block.
2510: #
1.397 albertel 2511: sub start_lang {
2512: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2513: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2514: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2515: &Apache::lonxml::startredirection();
2516: }
2517: return '';
2518: }
2519:
2520: sub end_lang {
2521: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2522: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2523: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2524: my $result = &Apache::lonxml::endredirection();
2525: my $which = &Apache::lonxml::get_param('which',$parstack,
2526: $safeeval);
1.431 raeburn 2527: if ($which=~/\w/) {
2528: $available_texts{$which} = $result;
2529: }
2530: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
2531: $safeeval);
2532: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
2533: if ($language=~/\w/) {
2534: $available_texts{$language} = $result;
2535: }
1.427 bisitz 2536: }
2537:
1.397 albertel 2538: }
2539: return '';
2540: }
1.500 foxr 2541: } # end langauge block specific tags.
2542:
1.397 albertel 2543:
1.170 www 2544: sub start_instructorcomment {
1.201 albertel 2545: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 2546:
2547: my $result;
2548:
1.339 albertel 2549: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2550: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 2551: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 2552: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 2553: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
2554: $parser,$style);
1.170 www 2555: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2556: }
2557: $result='';
2558: } elsif ($target eq 'edit') {
2559: $result .=&Apache::edit::tag_start($target,$token);
2560: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2561: }
2562: return $result;
2563: }
2564:
2565: sub end_instructorcomment {
1.159 albertel 2566: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2567: my $result;
2568: if ($target eq "edit") {
2569: $result.= &Apache::edit::tag_end($target,$token,'');
2570: }
2571: return $result;
1.4 tsai 2572: }
2573:
2574: sub start_while {
1.326 albertel 2575: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2576:
1.160 albertel 2577: my $result;
1.339 albertel 2578: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2579: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2580: my $code = $token->[2]->{'condition'};
1.4 tsai 2581:
1.160 albertel 2582: push( @Apache::structuretags::whileconds, $code);
2583: if (!$Apache::lonxml::default_homework_loaded) {
2584: &Apache::lonxml::default_homework_load($safeeval);
2585: }
2586: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2587: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2588: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2589: push( @Apache::structuretags::whileline, $token->[5]);
2590: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2591: if ( $result ) {
2592: &Apache::lonxml::newparser($parser,\$bodytext);
2593: }
2594: } elsif ($target eq 'edit') {
2595: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2596: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2597: $token,40);
2598: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2599: } elsif ($target eq 'modified') {
2600: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2601: $safeeval,'condition');
2602: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2603: }
1.160 albertel 2604: return $result;
1.4 tsai 2605: }
2606:
2607: sub end_while {
1.159 albertel 2608: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2609: my $result;
2610:
1.339 albertel 2611: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2612: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2613: my $code = pop(@Apache::structuretags::whileconds);
2614: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2615: my $line = pop(@Apache::structuretags::whileline);
2616: my $return = &Apache::run::run($code,$safeeval);
2617: my $starttime=time;
2618: my $error=0;
2619: while ($return) {
2620: if (time-$starttime >
2621: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2622: $return = 0; $error=1; next;
1.161 albertel 2623: }
2624: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2625: if ($target eq 'grade' || $target eq 'answer' ||
2626: $target eq 'analyze') {
2627: # grade/answer/analyze should produce no output but if we
2628: # are redirecting, the redirecter should know what to do
2629: # with the output
2630: if (!$Apache::lonxml::redirection) { undef($result); }
2631: }
1.161 albertel 2632: $return = &Apache::run::run($code,$safeeval);
2633: }
1.516 bisitz 2634: if ($error) {
2635: &Apache::lonxml::error(
2636: '<pre>'
2637: .&mt('Code ran too long. It ran for more than [_1] seconds.',
2638: $Apache::lonnet::perlvar{'lonScriptTimeout'})
2639: .&mt('This occurred while running <while> on line [_1].',
2640: $line)
2641: .'</pre>');
2642: }
1.160 albertel 2643: } elsif ($target eq "edit") {
2644: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2645: }
1.160 albertel 2646: return $result;
1.1 albertel 2647: }
1.6 tsai 2648:
1.160 albertel 2649: # <randomlist show="1">
1.6 tsai 2650: # <tag1>..</tag1>
2651: # <tag2>..</tag2>
2652: # <tag3>..</tag3>
1.160 albertel 2653: # ...
1.6 tsai 2654: # </randomlist>
2655: sub start_randomlist {
1.326 albertel 2656: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2657: my $result;
1.339 albertel 2658: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2659: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2660: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2661: my $b_parser= HTML::LCParser->new(\$body);
2662: $b_parser->xml_mode(1);
2663: $b_parser->marked_sections(1);
1.159 albertel 2664: my $b_tok;
2665: my @randomlist;
2666: my $list_item;
2667: while($b_tok = $b_parser->get_token() ) {
2668: if($b_tok->[0] eq 'S') { # start tag
2669: # get content of the tag until matching end tag
2670: # get all text upto the matching tag
2671: # and push the content into @randomlist
2672: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2673: $b_parser);
2674: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2675: push(@randomlist,$list_item);
2676: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2677: # $list_item</b>";
2678: }
2679: if($b_tok->[0] eq 'T') { # text
2680: # what to do with text in between tags?
2681: # print "<b>TEXT $b_tok->[1]</b><br />";
2682: }
2683: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2684: # print "<b>END-TAG $b_tok->[1]</b><br />";
2685: # }
2686: }
1.303 albertel 2687: if (@randomlist) {
2688: my @idx_arr = (0 .. $#randomlist);
2689: &Apache::structuretags::shuffle(\@idx_arr);
2690: my $bodytext = '';
2691: my $show=$#randomlist;
2692: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2693: $showarg--;
2694: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2695: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2696: my @currlist;
2697: my $part = $Apache::inputtags::part;
2698: if ($part ne '') {
2699: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2700: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2701: if (!(grep(/^\Q$part\E$/,@currlist))) {
2702: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2703: }
2704: } else {
2705: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2706: }
2707: }
2708: }
1.526 raeburn 2709: for my $i (0 .. $show) {
2710: $bodytext .= "$randomlist[ $idx_arr[$i] ]";
1.303 albertel 2711: }
2712: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2713: }
2714: } elsif ($target eq 'edit' ) {
2715: $result .=&Apache::edit::tag_start($target,$token);
2716: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2717: $token,5);
2718: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2719: } elsif ($target eq 'modified' ) {
2720: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2721: $safeeval,'show');
2722: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2723: }
2724: return $result;
1.7 tsai 2725: }
2726:
2727: sub shuffle {
2728: my $a=shift;
2729: my $i;
1.303 albertel 2730: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 2731: &Apache::response::pushrandomnumber();
1.159 albertel 2732: for($i=@$a;--$i;) {
2733: my $j=int(&Math::Random::random_uniform() * ($i+1));
2734: next if $i == $j;
2735: @$a[$i,$j] = @$a[$j,$i];
2736: }
1.251 albertel 2737: &Apache::response::poprandomnumber();
1.7 tsai 2738: }
1.6 tsai 2739: }
2740:
2741: sub end_randomlist {
1.159 albertel 2742: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2743: my $result;
2744: if ($target eq 'edit' ) {
2745: $result=&Apache::edit::tag_end($target,$token,
2746: 'End Randomly Parsed Block');
2747: }
2748: return $result;
1.6 tsai 2749: }
2750:
1.283 albertel 2751: sub ordered_show_check {
2752: my $last_part=$Apache::inputtags::partlist[-2];
2753: my $in_order=
2754: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2755: my $in_order_show=1;
2756: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2757: $in_order_show=&Apache::response::check_status($last_part);
2758: }
2759: return $in_order_show;
2760: }
2761:
1.469 www 2762:
2763: sub start_startpartmarker {
2764: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2765: my $result='';
2766: if ($target eq 'edit') {
2767: $result=&Apache::edit::tag_start($target,$token);
2768: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2769: $result.=&Apache::edit::end_table();
2770:
2771: }
2772: return $result;
2773: }
2774:
2775: sub end_startpartmarker {
2776: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2777: my @result;
2778: if ($target eq 'edit') { $result[1]='no'; }
2779: return @result;
2780: }
2781:
2782: sub start_endpartmarker {
2783: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2784: my $result='';
2785: if ($target eq 'edit') {
2786: $result=&Apache::edit::tag_start($target,$token);
2787: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2788: $result.=&Apache::edit::end_table();
2789:
2790: }
2791: return $result;
2792: }
2793:
2794: sub end_endpartmarker {
2795: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2796: my @result;
2797: if ($target eq 'edit') { $result[1]='no'; }
2798: return @result;
2799: }
2800:
2801:
2802:
2803:
2804:
1.11 albertel 2805: sub start_part {
1.326 albertel 2806: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2807: if (!$Apache::lonxml::metamode) {
2808: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2809: # duedates.
2810: }
1.159 albertel 2811: my $result='';
1.386 albertel 2812: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2813: $Apache::inputtags::part=$id;
1.177 albertel 2814: push(@Apache::inputtags::partlist,$id);
2815: @Apache::inputtags::response=();
1.159 albertel 2816: @Apache::inputtags::previous=();
2817: @Apache::inputtags::previous_version=();
1.405 albertel 2818: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2819: &Apache::response::reset_params();
2820:
1.159 albertel 2821: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2822: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2823: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.528 raeburn 2824: if ($Apache::lonhomework::type eq 'randomizetry') {
2825: my $rndseed=&setup_rndseed($safeeval,$target);
2826: if (($target eq 'grade') && &Apache::response::submitted()) {
1.529 raeburn 2827: $Apache::lonhomework::results{"resource.$id.rndseed"}=$rndseed;
1.528 raeburn 2828: }
2829: } elsif (($target eq 'grade') && &Apache::response::submitted()) {
1.529 raeburn 2830: $Apache::lonhomework::results{"resource.$id.rndseed"}=$Apache::lonhomework::rawrndseed;
1.528 raeburn 2831: }
1.283 albertel 2832: my $in_order_show=&ordered_show_check();
1.214 albertel 2833: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2834: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2835: &Apache::run::run($expression,$safeeval);
1.159 albertel 2836:
2837: if ($target eq 'meta') {
1.224 www 2838: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2839: return &Apache::response::mandatory_part_meta.
2840: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2841: } elsif ($target eq 'web' || $target eq 'grade' ||
2842: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2843: if ($hidden || !$in_order_show) {
1.326 albertel 2844: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2845: } else {
2846: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2847: push (@Apache::inputtags::status,$status);
2848: my $expression='$external::datestatus="'.$status.'";';
2849: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2850: &Apache::run::run($expression,$safeeval);
1.284 albertel 2851: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2852: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2853: }
1.216 albertel 2854: if (( $status eq 'CLOSED' ) ||
2855: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2856: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2857: ( $status eq 'BANNED') ||
2858: ( $status eq 'UNAVAILABLE') ||
2859: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2860: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2861: $style);
1.159 albertel 2862: if ( $target eq "web" ) {
1.211 albertel 2863: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2864: } elsif ( $target eq 'tex' ) {
1.284 albertel 2865: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2866: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2867: } else {
1.211 albertel 2868: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2869: }
1.159 albertel 2870: }
2871: } else {
2872: if ($target eq 'tex') {
1.284 albertel 2873: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2874: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2875: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2876: } else {
2877: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2878: }
1.195 sakharuk 2879: }
1.159 albertel 2880: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2881: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.526 raeburn 2882: my @allkeys = split(/,/,$allkeys);
1.222 sakharuk 2883: my $allow_print_points = 0;
2884: foreach my $partial_key (@allkeys) {
1.230 albertel 2885: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2886: if ($1 ne '0') {$allow_print_points=1;}
2887: }
2888: }
1.275 albertel 2889: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2890: if (defined($maxtries) && $maxtries < 0) {
2891: $allow_print_points=0;
2892: }
1.302 albertel 2893: if (lc($env{'course.'.$env{'request.course.id'}.
2894: '.disableexampointprint'}) eq 'yes') {
2895: $allow_print_points=0;
2896: }
1.463 foxr 2897: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2898: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2899:
2900: }
1.233 www 2901: } elsif ($target eq 'web') {
1.479 raeburn 2902: if ($status eq 'CAN_ANSWER') {
2903: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2904: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
2905: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
2906: my $num = scalar(@Apache::inputtags::partlist)-1;
2907: if ($probrandomize eq 'randomizetry') {
2908: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
2909: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2910: } else {
2911: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2912: if ($probrandtries ne $reqtries) {
2913: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2914: }
2915: }
2916: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
2917: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2918: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2919: }
2920: }
1.475 raeburn 2921: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2922: }
2923: }
2924: }
2925: } elsif ($target eq 'edit') {
2926: $result.=&Apache::edit::tag_start($target,$token);
2927: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2928: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2929: ' '.
2930: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2931: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2932: } elsif ($target eq 'modified') {
2933: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2934: $safeeval,'id','display');
1.159 albertel 2935: if ($constructtag) {
1.225 albertel 2936: #limiting ids to only letters numbers, and space
1.224 www 2937: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2938: $result = &Apache::edit::rebuild_tag($token);
2939: }
2940: }
2941: return $result;
1.11 albertel 2942: }
2943:
2944: sub end_part {
1.159 albertel 2945: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2946: &Apache::lonxml::debug("in end_part $target ");
2947: my $status=$Apache::inputtags::status['-1'];
2948: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2949: my $in_order_show=&ordered_show_check();
1.321 albertel 2950: my $result;
2951: if (!$Apache::lonxml::metamode) {
2952: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2953: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2954: }
1.312 albertel 2955: if ($target eq 'grade') {
1.249 albertel 2956: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2957: !$hidden && $in_order_show) {
1.311 foxr 2958: $result.=&Apache::inputtags::grade;
1.249 albertel 2959: } else {
2960: # move any submission data to .hidden
2961: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2962: }
1.283 albertel 2963: } elsif (($target eq 'web' || $target eq 'tex') &&
2964: !$hidden && $in_order_show) {
1.159 albertel 2965: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2966: $target);
1.490 raeburn 2967: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2968: ($env{'form.grade_imsexport'})) {
1.212 albertel 2969: $gradestatus='';
2970: }
1.311 foxr 2971: $result.=$gradestatus;
1.265 sakharuk 2972: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2973: } elsif ($target eq 'edit') {
1.311 foxr 2974: $result.=&Apache::edit::end_table();
1.322 albertel 2975: } elsif ($target eq 'modified') {
2976: $result .= $token->[2];
1.159 albertel 2977: }
2978: pop @Apache::inputtags::status;
2979: $Apache::inputtags::part='';
1.295 albertel 2980: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2981: return $result;
1.11 albertel 2982: }
1.1 albertel 2983:
1.25 albertel 2984: sub start_preduedate {
1.326 albertel 2985: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2986: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2987: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2988: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2989: if (!$Apache::lonhomework::scantronmode &&
2990: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2991: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2992: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2993: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2994: }
1.24 albertel 2995: }
1.159 albertel 2996: return '';
1.24 albertel 2997: }
2998:
1.25 albertel 2999: sub end_preduedate {
1.159 albertel 3000: return '';
1.24 albertel 3001: }
3002:
1.369 foxr 3003: # In all the modes where <postanswerdate> text is
3004: # displayable, all we do is eat up the text between the start/stop
3005: # tags if the conditions are not right to display it.
1.25 albertel 3006: sub start_postanswerdate {
1.326 albertel 3007: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 3008: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
3009: &Apache::lonnet::allowed('pav',
3010: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 3011: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 3012: $target eq 'tex' ) {
1.300 albertel 3013: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 3014: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
3015: (($target eq 'tex') && !$pav)) {
1.326 albertel 3016: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 3017: }
3018: }
3019: return '';
1.24 albertel 3020: }
3021:
1.25 albertel 3022: sub end_postanswerdate {
1.159 albertel 3023: return '';
1.24 albertel 3024: }
3025:
1.25 albertel 3026: sub start_notsolved {
1.326 albertel 3027: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 3028: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 3029: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 3030: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
3031: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 3032: if ($gradestatus =~ /^correct/ &&
3033: &Apache::response::show_answer()) {
1.159 albertel 3034: &Apache::lonxml::debug("skipping");
1.326 albertel 3035: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 3036: }
1.24 albertel 3037: }
1.159 albertel 3038: return '';
1.24 albertel 3039: }
3040:
1.25 albertel 3041: sub end_notsolved {
1.159 albertel 3042: return '';
1.24 albertel 3043: }
3044:
3045: sub start_solved {
1.326 albertel 3046: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 3047: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
3048: $target eq 'tex') {
3049: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 3050: if ($gradestatus !~ /^correct/ ||
3051: !&Apache::response::show_answer()) {
1.326 albertel 3052: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 3053: }
1.24 albertel 3054: }
1.159 albertel 3055: return '';
1.24 albertel 3056: }
3057:
3058: sub end_solved {
1.248 albertel 3059: return '';
3060: }
3061:
3062: sub start_problemtype {
1.326 albertel 3063: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 3064: my $result;
1.339 albertel 3065: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
3066: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 3067: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
3068: if (!defined($mode)) { $mode='show'; }
3069: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
3070: my $found=0;
3071: foreach my $type (split(',',$for)) {
3072: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
3073: }
3074: if ($mode eq 'show' && !$found) {
1.326 albertel 3075: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 3076: }
3077: if ($mode eq 'hide' && $found) {
1.326 albertel 3078: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 3079: }
3080: } elsif ($target eq 'edit') {
3081: $result .=&Apache::edit::tag_start($target,$token);
3082: $result.=&Apache::edit::select_arg('Mode:','mode',
3083: [['show','Show'],
3084: ['hide','Hide']]
3085: ,$token);
3086: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.511 bisitz 3087: [ ['exam','Bubblesheet Exam/Quiz Problem'],
1.248 albertel 3088: ['survey','Survey'],
1.465 raeburn 3089: ['surveycred','Survey (with credit)'],
3090: ['anonsurvey','Anonymous Survey'],
3091: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 3092: ['problem','Homework Problem'],
1.479 raeburn 3093: ['practice','Practice Problem'],
3094: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 3095: ,$token);
3096: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
3097: } elsif ($target eq 'modified') {
3098: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
3099: $safeeval,'mode','for');
3100: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
3101: }
3102: return $result;
3103: }
3104:
3105: sub end_problemtype {
1.159 albertel 3106: return '';
1.24 albertel 3107: }
1.34 albertel 3108:
3109: sub start_startouttext {
1.159 albertel 3110: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3111: my @result=(''.'');
3112: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 3113:
3114: my $nesting =
3115: &Apache::lonxml::set_state('outtext',
3116: &Apache::lonxml::get_state('outtext')+1);
3117: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
3118: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
3119: }
1.159 albertel 3120: return (@result);
1.34 albertel 3121: }
1.159 albertel 3122:
1.34 albertel 3123: sub end_startouttext {
1.326 albertel 3124: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 3125: my $result='';
3126: my $text='';
3127: if ($target eq 'edit') {
1.424 foxr 3128: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 3129: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.527 golterma 3130: $result.=&Apache::edit::start_table($token)."<tr><td>".&Apache::loncommon::insert_folding_button()
3131: ." ".&mt('Text Block')."</td>"
1.438 bisitz 3132: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 3133: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 3134: .'</span></td>'
1.515 golterma 3135: .'<td><span id="math_'.$areaid.'">'
1.474 raeburn 3136: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
1.512 bisitz 3137: .'</span></td>'
1.474 raeburn 3138: .'<td>'
3139: .&Apache::edit::insertlist($target,$token)
3140: .'</td>'
1.515 golterma 3141: .'<td class="LC_edit_problem_latexhelper">' .
1.474 raeburn 3142: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 3143: &Apache::edit::end_row().
1.362 albertel 3144: &Apache::edit::start_spanning_row()."\n".
1.255 www 3145: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 3146: }
3147: if ($target eq 'modified') {
1.219 albertel 3148: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 3149: }
3150: if ($target eq 'tex') {
3151: $result .= '\noindent ';
3152: }
3153: return $result;
1.34 albertel 3154: }
1.159 albertel 3155:
1.34 albertel 3156: sub start_endouttext {
1.159 albertel 3157: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3158: my $result='';
3159: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
3160: if ($target eq "modified") {
3161: $result='<endouttext />'.
1.377 albertel 3162: &Apache::edit::handle_insertafter('startouttext');
3163: }
1.404 albertel 3164:
3165: my $nesting =
3166: &Apache::lonxml::set_state('outtext',
3167: &Apache::lonxml::get_state('outtext')-1);
3168: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
3169: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
3170: &Apache::lonxml::set_state('outtext', 0);
3171: }
1.159 albertel 3172: return $result;
1.34 albertel 3173: }
1.159 albertel 3174:
1.34 albertel 3175: sub end_endouttext {
1.159 albertel 3176: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3177: my @result=('','');
3178: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
3179: return (@result);
1.34 albertel 3180: }
1.159 albertel 3181:
1.45 albertel 3182: sub delete_startouttext {
1.326 albertel 3183: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
3184: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 3185: my $text=$$parser['-1']->get_text("/endouttext");
3186: my $ntoken=$$parser['-1']->get_token();
3187: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
3188: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
3189: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
3190: # they did the last time round
3191: &Apache::lonxml::increasedepth($ntoken);
3192: &Apache::lonxml::decreasedepth($ntoken);
3193: return 1;
1.193 www 3194: }
3195:
3196: sub start_simpleeditbutton {
3197: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3198: my $result='';
1.284 albertel 3199: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 3200: ($target eq 'web') &&
1.330 albertel 3201: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 3202: my $url=$env{'request.noversionuri'};
1.193 www 3203: $url=~s/\?.*$//;
1.367 albertel 3204: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 3205: # Warning makes more sense and is more important on edit screen
1.442 bisitz 3206: # $result='<p class="LC_warning">'
3207: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
3208: # .&Apache::loncommon::help_open_topic('Caching')
3209: # .'</p>';
1.486 www 3210: $result.=&Apache::loncommon::head_subbox(
3211: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 3212: .&Apache::lonhtmlcommon::add_item_funclist(
3213: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
3214: .&mt('Edit').'</a>')
1.486 www 3215: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 3216:
1.193 www 3217: }
3218: return $result;
3219: }
3220:
3221: sub end_simpleeditbutton {
3222: return '';
1.45 albertel 3223: }
1.34 albertel 3224:
1.428 raeburn 3225: sub practice_problem_header {
3226: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
3227: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
3228: '</span>';
3229: }
3230:
1.479 raeburn 3231: sub randomizetry_problem_header {
3232: my ($problemstatus,$reqtries) = @_;
3233: my ($header,$text);
3234: if ($reqtries > 1) {
3235: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
3236: if (($problemstatus eq 'no') ||
3237: ($problemstatus eq 'no_feedback_ever')) {
3238: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3239: } else {
3240: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3241: }
3242: } else {
3243: $header = &mt('New Problem Variation Each Try');
3244: if (($problemstatus eq 'no') ||
3245: ($problemstatus eq 'no_feedback_ever')) {
3246: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
3247:
3248: } else {
3249: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
3250: }
3251: }
3252: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
3253: '<span class="LC_info">'.$text.'</span><hr />';
3254: }
3255:
3256: sub randomizetry_part_header {
3257: my ($problemstatus,$reqtries,$num) = @_;
3258: my ($header,$text);
3259: if ($reqtries eq 'none') {
3260: $header = &mt('No Question Variation');
3261: $text = &mt('For this question there will no new variation after a try.');
3262: } elsif ($reqtries > 1) {
3263: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
3264: if (($problemstatus eq 'no') ||
3265: ($problemstatus eq 'no_feedback_ever')) {
3266: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3267: } else {
3268: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3269: }
3270: } else {
3271: $header = &mt('New Question Variation For Each Try');
3272: if (($problemstatus eq 'no') ||
3273: ($problemstatus eq 'no_feedback_ever')) {
3274: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
3275: } else {
3276: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
3277: }
3278: }
3279: my $output;
3280: if ($num > 1) {
3281: $output .= '<hr />';
3282: }
3283: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
3284: '<span class="LC_info">'.$text.'</span><br /><br />';
3285: return $output;
3286: }
3287:
1.1 albertel 3288: 1;
3289: __END__
1.435 jms 3290:
3291: =pod
3292:
3293: =back
3294:
3295: =cut
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