Annotation of loncom/homework/structuretags.pm, revision 1.539
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.539 ! raeburn 4: # $Id: structuretags.pm,v 1.538 2015/06/18 20:18:54 musolffc 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) {
1.538 musolffc 493: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js()
494: .'<script type="text/javascript"
495: src="/res/adm/includes/file_upload.js"></script>';
1.495 raeburn 496: }
1.478 raeburn 497: }
1.425 raeburn 498:
1.344 albertel 499: my %body_args;
500: if (defined($found{'html'})) {
501: $body_args{'skip_phases'}{'head'}=1;
502: } else {
1.343 albertel 503:
1.345 albertel 504: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 505:
1.379 albertel 506: $extra_head .= &Apache::londefdef::generate_css_links();
507:
1.384 albertel 508: if ($env{'request.state'} eq 'construct') {
1.343 albertel 509: $extra_head.=&Apache::edit::js_change_detection().
510: "<script type=\"text/javascript\">\n".
511: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
512: &Apache::loncommon::browser_and_searcher_javascript().
513: "\n</script>\n";
1.525 raeburn 514: if ($target eq 'edit') {
515: $extra_head .= &Apache::edit::js_update_linknum();
516: }
1.343 albertel 517: }
1.159 albertel 518: }
1.343 albertel 519:
1.446 bisitz 520: my $pageheader = '';
1.344 albertel 521: if (defined($found{'body'})) {
522: $body_args{'skip_phases'}{'body'}=1;
523: } elsif (!defined($found{'body'})
524: && $env{'request.state'} eq 'construct') {
1.343 albertel 525: if ($target eq 'web' || $target eq 'edit') {
1.513 raeburn 526: # Breadcrumbs for Authoring Space
1.450 bisitz 527: &Apache::lonhtmlcommon::clear_breadcrumbs();
528: &Apache::lonhtmlcommon::add_breadcrumb({
1.513 raeburn 529: 'text' => 'Authoring Space',
1.497 raeburn 530: 'href' => &Apache::loncommon::authorspace($env{'request.uri'}),
1.450 bisitz 531: });
1.460 droeschl 532: # breadcrumbs (and tools) will be created
533: # in start_page->bodytag->innerregister
534:
1.450 bisitz 535: # FIXME Where are we?
536: # &Apache::lonhtmlcommon::add_breadcrumb({
537: # 'text' => 'Problem Editing', # 'Problem Testing'
538: # 'href' => '',
539: # });
1.460 droeschl 540: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 541: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 542: }
1.272 albertel 543: } elsif (!defined($found{'body'})) {
1.343 albertel 544: my %add_entries;
1.159 albertel 545: my $background=&Apache::lonxml::get_param('background',$parstack,
546: $safeeval);
1.343 albertel 547: if ($background ne '' ) {
548: $add_entries{'background'} = $background;
549: }
1.344 albertel 550:
1.290 albertel 551: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
552: $safeeval);
1.446 bisitz 553: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 554:
1.446 bisitz 555: $body_args{'bgcolor'} = $bgcolor;
556: # $body_args{'no_title'} = 1;
557: $body_args{'force_register'} = 1;
558: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 559: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 560: $body_args{'only_body'} = 1;
1.518 raeburn 561: } elsif ($target eq 'web') {
562: $body_args{'print_suppress'} = 1;
1.446 bisitz 563: }
1.344 albertel 564: }
1.365 albertel 565: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 566: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
567: \%body_args);
1.446 bisitz 568: $page_start .= $pageheader;
1.462 raeburn 569: if (!defined($found{'body'})
570: && $env{'request.state'} ne 'construct'
571: && ($target eq 'web' || $target eq 'webgrade')) {
572:
573: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
574: if ($symb eq '' && !$publicuser) {
575: $page_start .= '<p class="LC_info">'
576: .&mt('Browsing resource, all submissions are temporary.')
577: .'</p>';
1.457 bisitz 578: }
1.344 albertel 579: }
580:
1.409 albertel 581: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 582: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 583: }
584: my $form_tag_start;
585: if (!defined($found{'form'})) {
1.337 albertel 586: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 587: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 588: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 589: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 590: $form_tag_start.=$uri.'" ';
591: if ($target eq 'edit') {
592: $form_tag_start.=&Apache::edit::form_change_detection();
593: }
1.493 raeburn 594: my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
595: my ($path,$multiresp) =
596: &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
1.495 raeburn 597: if (($is_task) || ($needs_upload)) {
598: $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
1.478 raeburn 599: }
1.368 albertel 600: $form_tag_start.='>'."\n";
1.355 albertel 601:
602: if ($symb =~ /\S/) {
603: $symb=
604: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
605: $form_tag_start.=
1.368 albertel 606: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 607: }
1.159 albertel 608: }
1.528 raeburn 609: return ($page_start,$form_tag_start,$partlist);
1.105 albertel 610: }
611:
1.141 matthew 612: #use Time::HiRes();
1.105 albertel 613: sub get_resource_name {
1.159 albertel 614: my ($parstack,$safeeval)=@_;
1.388 foxr 615: my $name;
1.204 albertel 616: if (defined($Apache::lonhomework::name)) {
1.388 foxr 617: $name = $Apache::lonhomework::name;
618: } else {
619: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 620: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 621: if ($name eq '') {
622: $name=&Apache::lonnet::EXT('resource.title');
623: if ($name eq 'con_lost') { $name = ''; }
624: }
625: if ($name!~/\S+/) {
626: $name=$env{'request.uri'};
627: $name=~s-.*/([^/]+)$-$1-;
628: }
629: # The name has had html tags escaped:
630:
631: $name=~s/</</gs;
632: $name=~s/>/>/gs;
633:
634: $Apache::lonhomework::name=$name;
1.204 albertel 635: }
1.159 albertel 636: return $name;
1.105 albertel 637: }
638:
639: sub setup_rndseed {
1.528 raeburn 640: my ($safeeval,$target,$probpartlist)=@_;
1.367 albertel 641: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 642: my ($questiontype,$set_safespace,$rndseed);
643: if ($target eq 'analyze') {
644: $questiontype = $env{'form.grade_questiontype'};
645: }
646: unless (defined($questiontype)) {
647: $questiontype = $Apache::lonhomework::type;
648: }
1.333 albertel 649: if ($env{'request.state'} eq "construct"
650: || $symb eq ''
651: || $Apache::lonhomework::type eq 'practice'
652: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 653: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 654: ['rndseed']);
1.284 albertel 655: $rndseed=$env{'form.rndseed'};
1.159 albertel 656: if (!$rndseed) {
1.162 albertel 657: $rndseed=$Apache::lonhomework::history{'rndseed'};
658: if (!$rndseed) {
659: $rndseed=time;
660: }
1.284 albertel 661: $env{'form.rndseed'}=$rndseed;
1.162 albertel 662: }
1.479 raeburn 663: if (($env{'request.state'} eq "construct") &&
664: ($Apache::lonhomework::type eq 'randomizetry')) {
665: my $tries = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
666: if ($tries) {
667: $rndseed += $tries;
668: }
1.480 raeburn 669: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 670: }
1.374 albertel 671: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
672: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 673: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 674: srand(time);
675: $rndseed=int(rand(2100000000));
1.284 albertel 676: $env{'form.rndseed'}=$rndseed;
677: delete($env{'form.resetdata'});
678: delete($env{'form.newrandomization'});
1.159 albertel 679: }
1.488 www 680: $rndseed=~s/\,/\:/g;
681: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 682: if (defined($rndseed)) {
683: my ($c1,$c2)=split(/\:/,$rndseed);
684: unless ($c2) { $c2=0; }
685: unless (($c1==int($c1)) && ($c2==int($c2))) {
686: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
687: }
1.187 albertel 688: }
1.247 albertel 689: if ($Apache::lonhomework::history{'resource.CODE'}) {
690: $rndseed=&Apache::lonnet::rndseed();
691: }
1.479 raeburn 692: $set_safespace = 1;
693: } elsif ($questiontype eq 'randomizetry') {
694: if ($target eq 'analyze') {
695: if (defined($env{'form.grade_rndseed'})) {
696: $rndseed = $env{'form.grade_rndseed'};
697: }
698: }
699: unless (($target eq 'analyze') && (defined($rndseed))) {
700: $rndseed=&Apache::lonnet::rndseed();
1.528 raeburn 701: my $partfortries = $Apache::inputtags::part;
702: if (ref($probpartlist) eq 'ARRAY') {
703: if ((@{$probpartlist} == 1) && ($probpartlist->[0] ne $Apache::inputtags::part)) {
704: $partfortries = $probpartlist->[0];
705: }
706: }
707: my $curr_try = $Apache::lonhomework::history{"resource.$partfortries.tries"};
1.479 raeburn 708: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
709: $curr_try ++;
710: }
711: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
712: $rndseed = $1;
713: }
714: if ($curr_try) {
1.528 raeburn 715: my $reqtries = &Apache::lonnet::EXT("resource.$partfortries.randomizeontries");
1.479 raeburn 716: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
717: my $inc = int(($curr_try-1)/$reqtries);
718: $rndseed += $inc;
719: } else {
720: $rndseed += $curr_try;
721: }
722: }
723: }
724: $set_safespace = 1;
1.528 raeburn 725: if ($target eq 'grade') {
726: $Apache::lonhomework::rawrndseed = $rndseed;
727: }
1.479 raeburn 728: }
729: if ($set_safespace) {
730: if ($safeeval) {
731: &Apache::lonxml::debug("Setting rndseed to $rndseed");
732: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
733: }
734: }
735: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
736: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 737: }
738: return $rndseed;
1.105 albertel 739: }
740:
1.268 albertel 741: sub remember_problem_state {
742: return '
1.284 albertel 743: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
744: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
745: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 746: }
747:
1.487 www 748: sub problem_edit_action_button {
749: my ($name,$action,$accesskey,$text,$flag)=@_;
750: my $actionscript="setmode(this.form,'$action')";
751: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
752: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
753: }
754:
1.423 www 755: sub problem_edit_buttons {
1.487 www 756: my ($mode)=@_;
1.535 droeschl 757: # Buttons that save
758: my $result = '<div style="float:right">';
759: if ($mode eq 'editxml') {
760: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
761: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
762: } else {
763: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
764: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
765: }
766: $result.="\n</div>\n";
1.487 www 767: # Buttons that do not save
1.535 droeschl 768: $result .= '<div>'.
1.487 www 769: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
770: if ($mode eq 'editxml') {
771: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
772: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
773: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
774: } else {
775: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
776: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
777: }
778: $result.="\n</div>";
779: return $result;
1.423 www 780: }
781:
782: sub problem_edit_header {
1.527 golterma 783: my ($mode)=@_;
784: my $return = '<input type="hidden" name="submitted" value="edit" />'.
1.487 www 785: &remember_problem_state('edit').'
1.527 golterma 786: <div class="LC_edit_problem_header">
787: <div class="LC_edit_problem_header_title">
788: '.&mt('Problem Editing').$mode.&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
789: </div><div class="LC_edit_actionbar" id="actionbar">'.
790: '<input type="hidden" name="problemmode" value="saveedit" />'.
791: &problem_edit_buttons();
792:
1.535 droeschl 793: $return .= '</div></div>' . &Apache::lonxml::message_location();
1.527 golterma 794: $return .= '<link rel="stylesheet" href="/adm/codemirror/codemirror-combined.css" />
795: <script type="text/javascript" src="/adm/codemirror/codemirror-compressed-colorful.js"></script>';
796:
797: $return .= '<script type="text/javascript" src="/adm/jQuery/addons/jquery-scrolltofixed.js"></script>
798: <script type="text/javascript">
799: // unless internet explorer
800: if (!(window.navigator.appName == "Microsoft Internet Explorer" && (document.documentMode || document.compatMode))){
801: $(document).ready(
802: function() {
803: $(\'.LC_edit_actionbar\').scrollToFixed(
804: {
805: fixed: function(){
1.535 droeschl 806: //$(this).find(\'.LC_edit_actionbar\').css(\'height\', \'31px\');
807: $(this).find(\'.LC_edit_actionbar\');
1.527 golterma 808: }
809: }
810: );
811: }
812: );
813: }
814: </script>
815: <table id="LC_edit_problem_colorful" border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
816: return $return;
1.105 albertel 817: }
818:
819: sub problem_edit_footer {
1.527 golterma 820: my $resource = $env{'request.ambiguous'};
1.412 albertel 821: return '</td></tr></table><br />
822: <div class="LC_edit_problem_footer">
1.453 bisitz 823: <hr />'.
1.423 www 824: &problem_edit_buttons().'
1.459 bisitz 825: <hr style="clear:both;" />
1.527 golterma 826: <script type="text/javascript">
827: restoreState("'.$resource.'");
828: restoreScrollPosition("'.$resource.'");
829: </script>
1.412 albertel 830: </div>
831: '.
1.342 albertel 832: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 833: }
834:
1.235 albertel 835: sub option {
836: my ($value,$name) = @_;
837: my $result ="<option value='".$value."' ";
1.284 albertel 838: if ($env{'form.'.$name} eq $value) {
1.235 albertel 839: $result.=" selected='on' ";
840: }
841: $result.='>';
842: return $result;
843: }
844:
1.105 albertel 845: sub problem_web_to_edit_header {
1.159 albertel 846: my ($rndseed)=@_;
1.406 albertel 847: my $result .= '<div class="LC_edit_problem_header">';
848:
849: if (!$Apache::lonhomework::parsing_a_task) {
850: $result .=
851: '<div class="LC_edit_problem_header_title">'.
852: &mt('Problem Testing').
853: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
854: '</div>';
855: } else {
856: $result .=
857: '<div class="LC_edit_problem_header_title">'.
858: &mt('Task Testing').
859: '</div>';
860: }
861:
1.315 albertel 862: my $show_all_foils_text =
863: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 864: &mt('Show All Instances')
865: : &mt('Show All Foils');
1.315 albertel 866:
1.452 bisitz 867: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
868: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 869: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 870: $show_all.= ' /> '.$show_all_foils_text
871: .'</label></span>';
1.406 albertel 872:
873:
1.384 albertel 874:
1.406 albertel 875: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 876: if (!$Apache::lonhomework::parsing_a_task) {
877: $result.="
1.406 albertel 878: <div class='LC_edit_problem_header_row1'>
879: <span class=\"LC_nobreak\">
1.405 albertel 880: ".&mt("Problem Status:")."
1.235 albertel 881: <select name='problemstate'>
1.270 albertel 882: <option value=''></option>
1.235 albertel 883: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
884: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
885: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
886: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
887: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
888: </select>
1.406 albertel 889: </span>
890: <span class=\"LC_nobreak\">
1.405 albertel 891: ".&mt("Problem Type:")."
1.235 albertel 892: <select name='problemtype'>
1.270 albertel 893: <option value=''></option>
1.509 bisitz 894: ".&option('exam' ,'problemtype').&mt("Bubblesheet Exam Problem")."</option>
1.428 raeburn 895: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 896: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 897: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
898: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
899: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 900: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 901: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 902: </select>
1.406 albertel 903: </span>
904: $show_all
905: </div>
906: <div class='LC_edit_problem_header_row2'>
907: <span class=\"LC_nobreak\">
1.405 albertel 908: ".&mt("Feedback Mode:")."
1.235 albertel 909: <select name='problemstatus'>
910: <option value=''></option>
1.242 albertel 911: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.517 bisitz 912: ".&option('no', 'problemstatus').&mt("Don't Show Incorrect/Correct Feedback")."</option>
1.405 albertel 913: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 914: </select>
1.406 albertel 915: </span>
916: ";
917:
1.376 albertel 918: } elsif ($Apache::lonhomework::parsing_a_task) {
919: $result.="
1.406 albertel 920: <div class='LC_edit_problem_header_row1'>
921: <span class=\"LC_nobreak\">
1.405 albertel 922: ".&mt("Problem Status:")."
1.376 albertel 923: <select name='problemstate'>
924: <option value=''></option>
925: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
926: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
927: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
928: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
929: </select>
1.406 albertel 930: </span>
931: $show_all
932: ";
933: }
934: $result.='
935: <span class="LC_nobreak">
936: '.&mt('Apply style file: ').'
937: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
938: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
939: </span>
1.422 www 940: </div>
941: <div class="LC_edit_problem_header_row1">'.
942: &Apache::lonxml::renderingoptions().'
1.406 albertel 943: </div>
944: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
945: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
946: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
947: </div>
1.453 bisitz 948: <hr />
1.406 albertel 949: <div class="LC_edit_problem_header_randomize_row">
950: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
951: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 952: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 953: $rndseed.'"
954: onchange="javascript:document.lonhomework.changerandseed.click()" />';
955:
956: if (!$Apache::lonhomework::parsing_a_task) {
957: my $numtoanalyze=$env{'form.numtoanalyze'};
958: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 959: $result .= '<span class="LC_nobreak">'.
960: &mt('[_1] for [_2] versions.',
1.416 raeburn 961: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 962: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
963: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 964: $numtoanalyze.'" size="5" />').
965: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
966: '</span>';
967:
1.313 albertel 968: }
1.406 albertel 969:
970: $result.='
971: </div>
1.453 bisitz 972: <hr />
1.447 bisitz 973: <div>';
1.416 raeburn 974: $result.='<input type="hidden" name="problemmode" value="view" />';
975: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
976: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
977: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
978: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 979: $result.='
980: </div>
1.453 bisitz 981: <hr />
1.409 albertel 982: '.&Apache::lonxml::message_location().'
1.406 albertel 983: </div>';
1.159 albertel 984: return $result;
1.48 albertel 985: }
986:
1.65 albertel 987: sub initialize_storage {
1.357 albertel 988: my ($given_symb) = @_;
1.353 albertel 989: undef(%Apache::lonhomework::results);
990: undef(%Apache::lonhomework::history);
1.357 albertel 991: my ($symb,$courseid,$domain,$name) =
1.367 albertel 992: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 993:
994: # anonymous users (CODEd exams) have no data
995: if ($name eq 'anonymous'
996: && !defined($domain)) {
997: return;
998: }
999:
1.333 albertel 1000: if ($env{'request.state'} eq 'construct'
1001: || $symb eq ''
1002: || $Apache::lonhomework::type eq 'practice') {
1003:
1004: my $namespace = $symb || $env{'request.uri'};
1005: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 1006: ($env{'form.resetdata'} eq &mt('New Problem Variation')
1007: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 1008: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1009: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
1010: &Apache::lonxml::debug("Attempt reset");
1011: }
1.159 albertel 1012: %Apache::lonhomework::history=
1.333 albertel 1013: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.526 raeburn 1014: my ($temp)=keys(%Apache::lonhomework::history) ;
1.159 albertel 1015: &Apache::lonxml::debug("Return message of $temp");
1016: } else {
1017: %Apache::lonhomework::history=
1018: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1019: }
1.353 albertel 1020:
1.159 albertel 1021: #ignore error conditions
1.526 raeburn 1022: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1023: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 1024: }
1025:
1.435 jms 1026: =pod
1027:
1028: =item finalize_storage()
1029:
1.524 raeburn 1030: Stores away the result hash to a student's environment;
1.523 raeburn 1031: checks form.grade_ for specific values, otherwise stores
1032: to the running user's environment.
1.524 raeburn 1033:
1034: &check_correctness_changes() is called in two circumstances
1035: in which the results hash is to be stored permanently, for
1036: grading triggered by a student's submission, where feedback on
1037: correctness is to be provided to the student.
1038:
1039: 1. Immediately prior to storing the results hash
1040:
1041: To handle the case where a student's submission (and award) were
1042: stored after history was retrieved in &initialize_storage(), e.g.,
1043: if a student submitted answers in quick succession (e.g., from
1044: multiple tabs). &Apache::inputtags::hidealldata() is called for
1045: any parts with out-of-order storage (i.e., correct then incorrect,
1046: where awarded >= 1 when correct).
1047:
1048: 2. Immediately after storing the results hash
1049:
1050: To handle the case where lond on the student's homeserver returns
1051: delay:N -- where N is the number of transactions between the last
1052: retrieved in &initialize_storage() and the last stored immediately
1053: before permanent storage of the current transaction via
1054: lond::store_handler(). &Apache::grades::makehidden() is called
1055: for any parts with out-of-order storage (i.e., correct then incorrect,
1056: where awarded >= 1 when correct).
1057:
1058: Will call &store_aggregates() to increment totals for attempts,
1059: students, and corrects, if running user has student role.
1060:
1.435 jms 1061: =cut
1062:
1063:
1.65 albertel 1064: sub finalize_storage {
1.357 albertel 1065: my ($given_symb) = @_;
1.159 albertel 1066: my $result;
1.289 albertel 1067: if (%Apache::lonhomework::results) {
1.323 albertel 1068: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
1069: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 1070: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1071: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 1072: if ($env{'request.state'} eq 'construct'
1073: || $symb eq ''
1074: || $Apache::lonhomework::type eq 'practice') {
1075: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 1076: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 1077: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 1078: $namespace,'',$domain,$name);
1.159 albertel 1079: &Apache::lonxml::debug('Construct Store return message:'.$result);
1080: } else {
1.524 raeburn 1081: my ($laststore,$checkedparts,@parts,%postcorrect);
1082: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1083: (!$Apache::lonhomework::scantronmode) && (!defined($env{'form.grade_symb'})) &&
1084: (!defined($env{'form.grade_courseid'}))) {
1085: if ($Apache::lonhomework::history{'version'}) {
1086: $laststore = $Apache::lonhomework::history{'version'}.'='.
1087: $Apache::lonhomework::history{'timestamp'};
1088: } else {
1089: $laststore = '0=0';
1090: }
1091: my %record = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1092: if ($record{'version'}) {
1093: my ($newversion,$oldversion,$oldtimestamp);
1094: if ($Apache::lonhomework::history{'version'}) {
1095: $oldversion = $Apache::lonhomework::history{'version'};
1096: $oldtimestamp = $Apache::lonhomework::history{'timestamp'};
1097: } else {
1098: $oldversion = 0;
1099: $oldtimestamp = 0;
1100: }
1101: if ($record{'version'} > $oldversion) {
1102: if ($record{'timestamp'} >= $oldtimestamp) {
1103: $laststore = $record{'version'}.'='.$record{'timestamp'};
1104: $newversion = $record{'version'} + 1;
1105: $checkedparts = 1;
1106: foreach my $key (keys(%Apache::lonhomework::results)) {
1107: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1108: my $part = $1;
1109: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1110: push(@parts,$part);
1111: }
1112: }
1113: }
1114: if (@parts) {
1115: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1116: \%record,\@parts,$newversion,
1117: $oldversion);
1118: if (@parts_to_hide) {
1119: foreach my $part (@parts_to_hide) {
1120: $postcorrect{$part} = 1;
1121: &Apache::inputtags::hidealldata($part);
1122: }
1123: }
1124: }
1125: }
1126: }
1127: }
1128: }
1.159 albertel 1129: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
1.524 raeburn 1130: $symb,$courseid,$domain,$name,$laststore);
1131: if ($result =~ /^delay\:(\d+)$/) {
1132: my $numtrans = $1;
1133: my ($oldversion) = split(/=/,$laststore);
1134: if ($numtrans) {
1135: my $newversion = $oldversion + 1 + $numtrans;
1136: my @possparts;
1137: if ($checkedparts) {
1138: foreach my $part (@parts) {
1139: unless ($postcorrect{$part}) {
1140: push(@possparts,$part);
1141: }
1142: }
1143: } else {
1144: foreach my $key (keys(%Apache::lonhomework::results)) {
1145: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1146: my $part = $1;
1147: unless ($postcorrect{$part}) {
1148: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1149: push(@possparts,$part);
1150: }
1151: }
1152: }
1153: }
1154: }
1155: if (@possparts) {
1156: my %newrecord = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1157: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1158: \%newrecord,\@possparts,$newversion,
1159: $oldversion);
1160: if (@parts_to_hide) {
1161: my $partslist = join(',',@parts_to_hide);
1162: &Apache::grades::makehidden($newversion,$partslist,\%newrecord,$symb,$domain,$name,1);
1163: }
1164: }
1165: }
1166: }
1.159 albertel 1167: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 1168: &store_aggregates($symb,$courseid);
1.159 albertel 1169: }
1.323 albertel 1170: } else {
1171: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 1172: }
1.159 albertel 1173: return $result;
1.65 albertel 1174: }
1175:
1.435 jms 1176: =pod
1177:
1.524 raeburn 1178: =item check_correctness_changes()
1179:
1180: For all parts for which current results contain a solved status
1181: of "incorrect_attempted", check if there was a transaction in which
1182: solved was set to "correct_by_student" in the time since the last
1183: transaction (retrieved when &initialize_storage() was called i.e.,
1184: when &start_problem() was called), unless:
1185: (a) questiontype parameter is set to survey or anonymous survey (+/- credit)
1186: (b) problemstatus is set to no or no_feedback_ever
1187: If such a transaction exists, and did not occur after "reset status"
1188: by a user with grading privileges, then the current transaction is an
1189: example of an out-of-order transaction (i.e., incorrect occurring after
1190: correct). Accordingly, the current transaction should be hidden.
1191:
1192: =cut
1193:
1194:
1195: sub check_correctness_changes {
1196: my ($symb,$courseid,$domain,$name,$record,$parts,$newversion,$oldversion) = @_;
1197: my @parts_to_hide;
1198: unless ((ref($record) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
1199: return @parts_to_hide;
1200: }
1201: if (@{$parts}) {
1202: my $usec;
1203: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1204: ($env{'request.course.id'} eq $courseid)) {
1205: $usec = $env{'request.course.sec'};
1206: } else {
1207: $usec = &Apache::lonnet::getsection($domain,$name,$courseid);
1208: }
1209: foreach my $id (@{$parts}) {
1210: next if (($Apache::lonhomework::results{'resource.'.$id.'.type'} =~ /survey/) ||
1211: (&Apache::lonnet::EXT("resource.$id.problemstatus",$symb,
1212: $domain,$name,$usec,undef,$courseid) =~ /^no/));
1213: my $reset;
1214: for (my $i=$newversion-1; $i>=$oldversion; $i--) {
1215: if (($record->{$i.':resource.'.$id.'.regrader'}) &&
1216: ($record->{$i.':resource.'.$id.'.tries'} eq '') &&
1217: ($record->{$i.':resource.'.$id.'.award'} eq '')) {
1218: $reset = 1;
1219: } elsif (($record->{$i.":resource.$id.solved"} eq 'correct_by_student') &&
1220: ($record->{$i.":resource.$id.awarded"} >= 1)) {
1221: unless ($reset) {
1222: push(@parts_to_hide,$id);
1223: last;
1224: }
1225: }
1226: }
1227: }
1228: }
1229: return @parts_to_hide;
1230: }
1231:
1232: =pod
1233:
1.435 jms 1234: item store_aggregates()
1235:
1236: Sends hash of values to be incremented in nohist_resourcetracker.db
1237: for the course. Increments total number of attempts, unique students
1238: and corrects for each part for an instance of a problem, as appropriate.
1239:
1240: =cut
1241:
1.285 raeburn 1242: sub store_aggregates {
1243: my ($symb,$courseid) = @_;
1.479 raeburn 1244: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 1245: my @parts;
1.288 albertel 1246: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
1247: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 1248: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 1249: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 1250: push(@parts, $1);
1.285 raeburn 1251: }
1252: }
1.286 albertel 1253: foreach my $part (@parts) {
1.470 raeburn 1254: if ($env{'request.role'} =~/^st/) {
1255: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
1256: eq 'APPROX_ANS' ||
1257: $Apache::lonhomework::results{'resource.'.$part.'.award'}
1258: eq 'EXACT_ANS') {
1259: $aggregate{$symb."\0".$part."\0correct"} = 1;
1260: }
1261: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1262: $aggregate{$symb."\0".$part."\0users"} = 1;
1263: } else {
1264: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1265: if ($last_reset) {
1266: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1267: $aggregate{$symb."\0".$part."\0users"} = 1;
1268: }
1269: }
1270: }
1271: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 1272: }
1.470 raeburn 1273: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 1274: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
1275: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
1276: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
1277: $randtrycounter{$symb."\0".$part} = 1;
1278: } else {
1279: $anoncounter{$symb."\0".$part} = 1;
1280: }
1.537 raeburn 1281: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}.':'};
1282: if ($needsrelease) {
1.470 raeburn 1283: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
1284: if ($curr_required eq '') {
1.471 raeburn 1285: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1286: } else {
1287: my ($currmajor,$currminor) = split(/\./,$curr_required);
1288: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
1289: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 1290: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1291: }
1.292 raeburn 1292: }
1293: }
1.285 raeburn 1294: }
1295: }
1.526 raeburn 1296: if (keys(%aggregate) > 0) {
1.289 albertel 1297: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 1298: $cdomain,$cname);
1299: }
1.472 raeburn 1300: if (keys(%anoncounter) > 0) {
1.481 raeburn 1301: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
1302: $cdomain,$cname);
1.472 raeburn 1303: }
1.479 raeburn 1304: if (keys(%randtrycounter) > 0) {
1.481 raeburn 1305: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
1306: $cdomain,$cname);
1.479 raeburn 1307: }
1.292 raeburn 1308: }
1.289 albertel 1309:
1.65 albertel 1310: sub checkout_msg {
1.211 albertel 1311: my %lt=&Apache::lonlocal::texthash(
1312: 'resource'=>'The resource needs to be checked out',
1313: '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.',
1314: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
1.509 bisitz 1315: 'checkout'=>'Check out Bubblesheet Exam for Viewing',
1316: 'checkout?'=>'Check out Bubblesheet Exam?');
1.352 albertel 1317: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 1318: return (<<ENDCHECKOUT);
1.211 albertel 1319: <h2>$lt{'resource'}</h2>
1320: <p>$lt{'id_expln'}</p>
1.449 bisitz 1321: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 1322: <form name="checkout" method="post" action="$uri">
1.91 albertel 1323: <input type="hidden" name="doescheckout" value="yes" />
1.514 bisitz 1324: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onclick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 1325: </form>
1326: ENDCHECKOUT
1327: }
1328:
1.252 albertel 1329: sub firstaccess_msg {
1.253 albertel 1330: my ($time,$symb)=@_;
1.414 albertel 1331: my $result;
1332: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1333: if ($interval[1] eq 'map') {
1334: my ($map)=&Apache::lonnet::decode_symb($symb);
1335: my $foldertitle=&Apache::lonnet::gettitle($map);
1336:
1337: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 1338: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
1339: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1340: ,$foldertitle,$time)."</p>";
1.414 albertel 1341: } elsif ($interval[1] eq 'course') {
1342: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 1343: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 1344: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 1345: ,$course,$time)."</p>";
1.414 albertel 1346: } else {
1347: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1348: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1349: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1350: ,$title,$time)."</p>";
1.414 albertel 1351: }
1.352 albertel 1352: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1353: my $buttontext = &mt('Show Resource');
1354: my $timertext = &mt('Start Timer?');
1.414 albertel 1355: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1356: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1357: <input type="hidden" name="markaccess" value="yes" />
1.514 bisitz 1358: <input type="button" name="accessbutton" value="$buttontext" onclick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1359: </form>
1360: ENDCHECKOUT
1.414 albertel 1361: return $result;
1.252 albertel 1362: }
1363:
1.204 albertel 1364: sub init_problem_globals {
1365: my ($type)=@_;
1366: #initialize globals
1.308 foxr 1367: # For problems, we start out in part 0 (outside a <part> tag).
1368: # and part 0 is used to describe the main body of the <problem>
1369: #
1.204 albertel 1370: if ($type eq 'problem') {
1371: $Apache::inputtags::part='0';
1372: @Apache::inputtags::partlist=('0');
1.405 albertel 1373: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1374: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1375:
1.266 albertel 1376: } elsif ($type eq 'library') {
1.204 albertel 1377: $Apache::inputtags::part='';
1378: @Apache::inputtags::partlist=();
1.405 albertel 1379: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1380: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1381:
1.304 albertel 1382: } elsif ($type eq 'Task') {
1383: $Apache::inputtags::part='0';
1384: @Apache::inputtags::partlist=('0');
1.405 albertel 1385: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1386: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1387: }
1.477 www 1388: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1389: @Apache::inputtags::responselist = ();
1390: @Apache::inputtags::importlist = ();
1391: @Apache::inputtags::previous=();
1392: @Apache::inputtags::previous_version=();
1.536 raeburn 1393: $Apache::inputtags::leniency='';
1.204 albertel 1394: $Apache::structuretags::printanswer='No';
1395: @Apache::structuretags::whileconds=();
1396: @Apache::structuretags::whilebody=();
1397: @Apache::structuretags::whileline=();
1398: $Apache::lonhomework::scantronmode=0;
1399: undef($Apache::lonhomework::name);
1.358 albertel 1400: undef($Apache::lonhomework::default_type);
1401: undef($Apache::lonhomework::type);
1.204 albertel 1402: }
1403:
1404: sub reset_problem_globals {
1405: my ($type)=@_;
1406: undef(%Apache::lonhomework::history);
1407: undef(%Apache::lonhomework::results);
1408: undef($Apache::inputtags::part);
1.536 raeburn 1409: undef($Apache::inputtags::leniency);
1.498 raeburn 1410: if ($type eq 'Task') {
1411: undef($Apache::inputtags::slot_name);
1.528 raeburn 1412: } elsif ($type eq 'problem') {
1413: undef($Apache::lonhomework::rawrndseed);
1.498 raeburn 1414: }
1.208 albertel 1415: #don't undef this, lonhomework.pm takes care of this, we use this to
1416: #detect if we try to do 2 problems in one file
1417: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1418: undef($Apache::lonhomework::name);
1.358 albertel 1419: undef($Apache::lonhomework::default_type);
1420: undef($Apache::lonhomework::type);
1421: undef($Apache::lonhomework::scantronmode);
1422: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1423: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1424: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1425: }
1426:
1.241 albertel 1427: sub set_problem_state {
1.240 albertel 1428: my ($part)=@_;
1.284 albertel 1429: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1430: $Apache::lonhomework::history{"resource.$part.solved"}=
1431: 'correct_by_student';
1432: }
1433: }
1434:
1.241 albertel 1435: sub get_problem_status {
1436: my ($part)=@_;
1.267 albertel 1437: my $problem_status;
1.284 albertel 1438: if ($env{'request.state'} eq 'construct' &&
1439: defined($env{'form.problemstatus'})) {
1440: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1441: } else {
1442: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1443: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1444: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1445: }
1446: return $problem_status;
1447: }
1448:
1.9 albertel 1449: sub start_problem {
1.326 albertel 1450: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1451:
1.311 foxr 1452: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1453: if (!$Apache::lonxml::metamode) {
1454: &Apache::lonxml::startredirection();
1455: }
1.311 foxr 1456:
1.308 foxr 1457: # Problems don't nest and we don't allow more than one <problem> in
1458: # a .problem file.
1459: #
1.184 albertel 1460: if ( $Apache::inputtags::part ne '' ||
1461: $Apache::lonhomework::parsing_a_problem) {
1462: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1463: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1464: return '';
1465: }
1.184 albertel 1466:
1467: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1468: &init_problem_globals('problem');
1.166 albertel 1469:
1.284 albertel 1470: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1471: $Apache::lonhomework::scantronmode=1;
1472: }
1.161 albertel 1473:
1.159 albertel 1474: if ($target ne 'analyze') {
1.415 raeburn 1475: my $type = &Apache::lonnet::EXT('resource.0.type');
1476: $Apache::lonhomework::type=$type;
1.284 albertel 1477: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1478: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1479: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1480: }
1.332 albertel 1481: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1482: }
1.164 albertel 1483: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1484: my $uri=$env{'request.uri'};
1.159 albertel 1485: if ($uri=~/\.(\w+)$/) {
1486: $Apache::lonhomework::type=$1;
1487: &Apache::lonxml::debug("Using type of $1");
1488: } else {
1489: $Apache::lonhomework::type='problem';
1490: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1491: }
1.87 albertel 1492: }
1.301 albertel 1493: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1494:
1.363 albertel 1495: &initialize_storage();
1.389 albertel 1496: if ($target ne 'analyze'
1497: && $env{'request.state'} eq 'construct') {
1498: &set_problem_state('0');
1499: }
1500:
1.366 albertel 1501: if ($target eq 'web') {
1502: &Apache::lonxml::debug(" grading history ");
1503: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1504: }
1.363 albertel 1505:
1.159 albertel 1506: #added vars to the scripting enviroment
1.213 albertel 1507: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1508: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1509: &Apache::run::run($expression,$safeeval);
1.159 albertel 1510: my $status;
1511: my $accessmsg;
1.508 raeburn 1512: my $resource_due;
1.159 albertel 1513:
1.343 albertel 1514: my $name= &get_resource_name($parstack,$safeeval);
1.528 raeburn 1515: my ($result,$form_tag_start,$slot_name,$slot,$probpartlist);
1.506 raeburn 1516:
1517: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1518: $target eq 'tex') {
1519: if ($env{'form.markaccess'}) {
1520: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1.539 ! raeburn 1521: my ($timelimit) = split(/_/,$interval[0]);
! 1522: &Apache::lonnet::set_first_access($interval[1],$timelimit);
1.506 raeburn 1523: }
1524:
1525: ($status,$accessmsg,$slot_name,$slot) =
1526: &Apache::lonhomework::check_slot_access('0','problem');
1527: push (@Apache::inputtags::status,$status);
1528: }
1529:
1.354 albertel 1530: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1531: || $target eq 'edit') {
1.528 raeburn 1532: ($result,$form_tag_start,$probpartlist) =
1.350 albertel 1533: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1534: $name);
1.528 raeburn 1535: } elsif (($target eq 'grade') && ($Apache::lonhomework::type eq 'randomizetry')) {
1536: my ($symb)= &Apache::lonnet::whichuser();
1537: my $navmap = Apache::lonnavmaps::navmap->new();
1538: if (ref($navmap)) {
1539: my $res = $navmap->getBySymb($symb);
1540: if (ref($res)) {
1541: $probpartlist = $res->parts();
1542: }
1543: }
1.350 albertel 1544: }
1545:
1.284 albertel 1546: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1547:
1.479 raeburn 1548: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1549: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1550: $target eq 'tex') {
1.479 raeburn 1551:
1.159 albertel 1552: #handle rand seed in construction space
1.528 raeburn 1553: my $rndseed=&setup_rndseed($safeeval,$target,$probpartlist);
1554: if (($target eq 'grade') && &Apache::response::submitted()) {
1555: if ($Apache::lonhomework::type eq 'randomizetry') {
1.529 raeburn 1556: $Apache::lonhomework::results{'resource.0.rndseed'}=$rndseed;
1.528 raeburn 1557: } else {
1558: my @parts;
1559: if (ref($probpartlist) eq 'ARRAY') {
1560: @parts = @{$probpartlist};
1561: }
1562: unless (@parts) {
1.529 raeburn 1563: $Apache::lonhomework::results{'resource.0.rndseed'}=$Apache::lonhomework::rawrndseed;
1.528 raeburn 1564: }
1565: }
1566: }
1.367 albertel 1567: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 1568:
1.333 albertel 1569: if ($env{'request.state'} ne "construct" &&
1570: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1571: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1572: $rndseed.'" />'.
1573: '<input type="submit" name="resetdata"
1574: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1575: if (exists($env{'form.username'})) {
1576: $form_tag_start.=
1.164 albertel 1577: '<input type="hidden" name="username"
1.284 albertel 1578: value="'.$env{'form.username'}.'" />';
1.334 albertel 1579: }
1.462 raeburn 1580: if ($env{'request.role.adv'}) {
1581: $form_tag_start.= ' <label class="LC_nobreak">'
1582: .'<input type="checkbox" name="showallfoils"';
1583: if (defined($env{'form.showallfoils'})) {
1584: $form_tag_start.=' checked="checked"';
1585: }
1586: $form_tag_start.= ' /> '
1587: .&mt('Show All Foils')
1588: .'</label>';
1589: }
1.417 www 1590: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1591: $form_tag_start.=&practice_problem_header();
1.417 www 1592: }
1.462 raeburn 1593: $form_tag_start.='<hr />';
1.479 raeburn 1594: } elsif (($env{'request.state'} ne "construct") &&
1595: ($Apache::lonhomework::type eq 'randomizetry') &&
1596: ($status eq 'CAN_ANSWER')) {
1597: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1598: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1599: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1600: }
1.324 albertel 1601:
1.159 albertel 1602: my $expression='$external::datestatus="'.$status.'";';
1603: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1604: &Apache::run::run($expression,$safeeval);
1605: &Apache::lonxml::debug("Got $status");
1.324 albertel 1606:
1.159 albertel 1607: if (( $status eq 'CLOSED' ) ||
1608: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1609: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1610: ( $status eq 'BANNED') ||
1.216 albertel 1611: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1612: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1613: ( $status eq 'NOTRESERVABLE') ||
1614: ( $status eq 'RESERVABLE') ||
1615: ( $status eq 'RESERVABLE_LATER') ||
1.216 albertel 1616: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1617: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1618: $style);
1.159 albertel 1619: if ( $target eq "web" ) {
1.343 albertel 1620: my $msg;
1.159 albertel 1621: if ($status eq 'UNAVAILABLE') {
1.504 golterma 1622: $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1.441 raeburn 1623: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.504 golterma 1624: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1.499 raeburn 1625: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1626: ($status eq 'NOTRESERVABLE')) {
1.504 golterma 1627: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1.253 albertel 1628: } elsif ($status ne 'NOT_YET_VIEWED') {
1.504 golterma 1629: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1.499 raeburn 1630: }
1.216 albertel 1631: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1632: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1633: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1634: $msg.=&checkout_msg();
1.252 albertel 1635: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1636: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1637: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1638: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.499 raeburn 1639: } elsif ($status eq 'RESERVABLE') {
1640: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1641: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1642: '<br />'.
1643: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1644: } elsif ($status eq 'RESERVABLE_LATER') {
1645: $msg.=&mt('Window to make a reservation will open [_1].',
1646: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1647: } elsif ($status eq 'NOTRESERVABLE') {
1648: $msg.=&mt('Not available to make a reservation.');
1.159 albertel 1649: }
1650: $result.=$msg.'<br />';
1651: } elsif ($target eq 'tex') {
1.332 albertel 1652: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1653: : '\begin{minipage}{\textwidth}';
1.443 foxr 1654: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1655: $startminipage.'\vskip 0 mm';
1.159 albertel 1656: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1657: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1658: } else {
1.211 albertel 1659: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1660: }
1661: }
1.324 albertel 1662: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1663: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1664: $style);
1.324 albertel 1665: if ($target eq 'web') {
1.375 albertel 1666: $result .=
1667: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1668: } elsif ($target eq 'grade') {
1669: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1670: 'problem');
1671: }
1.159 albertel 1672: } elsif ($target eq 'web') {
1.508 raeburn 1673: if ($status eq 'CAN_ANSWER') {
1674: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1675: if ($slot_name ne '') {
1676: my $checked_in =
1677: $Apache::lonhomework::history{'resource.0.checkedin'};
1678: if ($checked_in eq '') {
1679: # unproctored slot access, self checkin
1680: &Apache::bridgetask::check_in('problem',undef,undef,
1681: $slot_name);
1682: $checked_in =
1683: $Apache::lonhomework::results{"resource.0.checkedin"};
1684: }
1685: if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1686: if ($slot->{'starttime'} < time()) {
1687: if (!$resource_due) {
1688: $resource_due = $slot->{'endtime'};
1689: } elsif ($slot->{'endtime'} < $resource_due) {
1690: $resource_due = $slot->{'endtime'};
1691: }
1692: }
1693: }
1694: }
1695: if ($resource_due) {
1696: my $time_left = $resource_due - time();
1697: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1698: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1699: }
1700: }
1701: }
1.368 albertel 1702: $result.="\n $form_tag_start \t".
1.227 albertel 1703: '<input type="hidden" name="submitted" value="yes" />';
1704: # create a page header and exit
1.284 albertel 1705: if ($env{'request.state'} eq "construct") {
1706: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1707: if ($Apache::lonhomework::type eq 'practice') {
1708: $result.= '<input type="submit" name="resetdata" '.
1709: 'value="'.&mt('New Problem Variation').'" />'.
1710: &practice_problem_header().'<hr />';
1711: }
1.227 albertel 1712: }
1713: # if we are viewing someone else preserve that info
1.284 albertel 1714: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1715: foreach my $field ('symb','courseid','domain','username') {
1716: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1717: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1718: }
1.479 raeburn 1719: foreach my $field ('trial','questiontype') {
1720: if ($env{"form.grade_$field"} ne '') {
1721: $result .= '<input type="hidden" name="grade_'.$field.
1722: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1723: }
1724: }
1.159 albertel 1725: }
1.490 raeburn 1726: if ($env{'form.grade_imsexport'}) {
1727: $result = '';
1728: }
1.159 albertel 1729: } elsif ($target eq 'tex') {
1.319 foxr 1730: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 1731: $result .= &select_metadata_hyphenation();
1732:
1.319 foxr 1733:
1.99 sakharuk 1734: }
1.159 albertel 1735: } elsif ($target eq 'edit') {
1.343 albertel 1736: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1737: $Apache::lonxml::warnings_error_header=
1738: &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 1739: my $temp=&Apache::edit::insertlist($target,$token);
1740: $result.=$temp;
1741: } elsif ($target eq 'modified') {
1742: $result=$token->[4];
1743: } else {
1744: # page_start returned a starting result, delete it if we don't need it
1745: $result = '';
1.99 sakharuk 1746: }
1.159 albertel 1747: return $result;
1.9 albertel 1748: }
1749:
1750: sub end_problem {
1.159 albertel 1751: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1752: my $result;
1.310 foxr 1753:
1.321 albertel 1754: if (!$Apache::lonxml::metamode) {
1755: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1756: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1757: }
1.319 foxr 1758:
1759: if ($target eq 'tex') {
1.321 albertel 1760: # Figure out the front matter and replace the
1761: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1762: # this in end_problem because whether or not we display due
1763: # dates depends on whether due dates have already been
1764: # displayed in the problem parts.
1765:
1.319 foxr 1766: my $frontmatter = '';
1767: my $startminipage = '';
1768: if (not $env{'form.problem_split'}=~/yes/) {
1769: $startminipage = '\begin{minipage}{\textwidth}';
1770: }
1771: my $id = $Apache::inputtags::part;
1772: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1773: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.526 raeburn 1774: my @packages = split(/,/,$packages);
1.319 foxr 1775: my $allow_print_points = 0;
1776: foreach my $partial_key (@packages) {
1777: if ($partial_key=~m/^part_0$/) {
1778: $allow_print_points=1;
1779: }
1780: }
1781: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1782: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1783: if (lc($env{'course.'.$env{'request.course.id'}.
1784: '.disableexampointprint'}) eq 'yes') {
1785: $allow_print_points=0;
1786: }
1787: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1788: 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 1789: &clear_required_languages();
1.319 foxr 1790: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1791: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1792:
1793: # Figure out what the due date is and if we need to print
1794: # it in the problem header. We have been logging the
1795: # last due date written to file.
1796:
1797: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1798: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1799: my $duedate_text = &mt('Due date: [_1]'
1800: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1801: my $temp_file;
1802: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1803:
1804: # Figure out what the last printed due date is or set it
1805: # to the epoch if no duedates have been printed.
1806:
1807: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1808: if (-e $filename) {
1809: $temp_file = Apache::File->new($filename);
1810: my @due_file = <$temp_file>;
1811: $due_file_content = $due_file[$#due_file];
1812: chomp $due_file_content;
1813: }
1814:
1815: # We display the due date iff it is not the same as the last
1816: # duedate in problem header ($due_file_content), and
1817: # none of our parts displayed a duedate.
1818: #
1819: my $parts_with_displayduedate;
1820: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1821: $parts_with_displayduedate =
1822: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1823: } else {
1824: $parts_with_displayduedate = 0;
1825: }
1826: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1827: $temp_file = Apache::File->new('>'.$filename);
1828: print $temp_file "$duetime\n";
1829: if (not $env{'request.symb'} =~ m/\.page_/) {
1830: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1831: $frontmatter .= $begin_doc.
1.448 bisitz 1832: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1833: } else {
1834: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1835: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1836: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1837: }
1.319 foxr 1838: }
1839: } else {
1.448 bisitz 1840: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1841: }
1842: } else {
1843: if (not $env{'request.symb'} =~ m/\.page_/) {
1844: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1845: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1846: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1847: }
1.319 foxr 1848: } else {
1.381 albertel 1849: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1850: }
1851: }
1852: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1853: }
1854:
1.159 albertel 1855: my $status=$Apache::inputtags::status['-1'];
1856: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1857: $target eq 'tex') {
1.249 albertel 1858: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1859: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1860: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1861: &Apache::inputtags::grade;
1.324 albertel 1862: } elsif ($status eq 'NEEDS_CHECKIN') {
1863: # no need to grade, and don't want to hide data
1.249 albertel 1864: } else {
1865: # move any submission data to .hidden
1866: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1867: }
1.159 albertel 1868: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1869: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1870: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1871: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1872: # if part is zero, no <part>s existed, so we need show the current
1873: # grading status
1874: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1875: $result.= $gradestatus;
1876: }
1877: if (
1.284 albertel 1878: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1879: ($target eq 'answer') || ($target eq 'tex')
1880: ) {
1.490 raeburn 1881: if (($target ne 'tex') &&
1882: ($env{'form.answer_output_mode'} ne 'tex') &&
1883: (!$env{'form.grade_imsexport'})) {
1.254 www 1884: $result.="</form>";
1.159 albertel 1885: }
1886: if ($target eq 'web') {
1.507 raeburn 1887: #
1888: # Closing </body></html> not added by end_page().
1889: # Added separately at end of this routine, after added
1890: # <script></script> so document will be valid xhtml.
1891: #
1892: $result.= &Apache::loncommon::end_page({'discussion' => 1,
1893: 'notbody' => 1});
1.159 albertel 1894: } elsif ($target eq 'tex') {
1.178 sakharuk 1895: my $endminipage = '';
1.284 albertel 1896: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1897: $endminipage = '\end{minipage}';
1898: }
1.284 albertel 1899: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1900: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1901: } else {
1.262 sakharuk 1902: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1903: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1904: $result .= $endminipage.'\end{document} ';
1905: } else {
1.382 albertel 1906: $result .= $endminipage;
1.262 sakharuk 1907: }
1.159 albertel 1908: }
1909: }
1910: }
1.476 www 1911: if ($target eq 'web') {
1912: $result.=&Apache::functionplotresponse::init_script();
1913: }
1.159 albertel 1914: if ($target eq 'grade') {
1915: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1916: &finalize_storage();
1917: }
1.284 albertel 1918: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1919: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1920: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1921: # normally we get it from above, but in CSTR
1.172 albertel 1922: # we always show answer mode too.
1.159 albertel 1923: }
1924: } elsif ($target eq 'meta') {
1925: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1926: @Apache::inputtags::response=();
1.159 albertel 1927: $result=&Apache::response::mandatory_part_meta;
1928: }
1.215 albertel 1929: $result.=&Apache::response::meta_part_order();
1.258 albertel 1930: $result.=&Apache::response::meta_response_order();
1.159 albertel 1931: } elsif ($target eq 'edit') {
1932: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1933: $result .= &problem_edit_footer();
1.320 albertel 1934: } elsif ($target eq 'modified') {
1935: $result .= $token->[2];
1.159 albertel 1936: }
1.155 albertel 1937:
1.284 albertel 1938: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1939: &Apache::inputtags::check_for_duplicate_ids();
1940: }
1.204 albertel 1941:
1942: &reset_problem_globals('problem');
1.159 albertel 1943:
1.502 foxr 1944: #
1945: # This shouild be just above the return so that the
1946: # time put in the javascript is as late as possible in the
1947: # computation:
1948: #
1949: if ($target eq 'web') {
1950: $result .= &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 1951: #
1952: # Closing tags delayed so any <script></script> tags
1953: # not in head can appear inside body, for valid xhtml.
1954: #
1955: $result .= "</body>\n</html>";
1.502 foxr 1956: }
1.159 albertel 1957: return $result;
1.48 albertel 1958: }
1959:
1.108 albertel 1960:
1.48 albertel 1961: sub start_library {
1.159 albertel 1962: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1963: my ($result,$form_tag_start);
1.371 albertel 1964: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1965: &init_problem_globals('library');
1966: $Apache::lonhomework::type='problem';
1967: }
1.159 albertel 1968: if ($target eq 'edit') {
1.343 albertel 1969: ($result,$form_tag_start)=
1970: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1971: 'Edit');
1972: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1973: my $temp=&Apache::edit::insertlist($target,$token);
1974: $result.=$temp;
1975: } elsif ($target eq 'modified') {
1976: $result=$token->[4];
1.340 albertel 1977: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1978: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1979: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1980: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1981: ($result,$form_tag_start)=
1982: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1983: $name);
1.479 raeburn 1984: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 1985: $result.=" \n $form_tag_start".
1.159 albertel 1986: '<input type="hidden" name="submitted" value="yes" />';
1987: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1988: if ($Apache::lonhomework::type eq 'practice') {
1989: $result.= '<input type="submit" name="resetdata" '.
1990: 'value="'.&mt('New Problem Variation').'" />'.
1991: &practice_problem_header().'<hr />';
1992: }
1.159 albertel 1993: }
1994: return $result;
1.48 albertel 1995: }
1996:
1997: sub end_library {
1.159 albertel 1998: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1999: my $result='';
2000: if ($target eq 'edit') {
2001: $result=&problem_edit_footer();
1.371 albertel 2002: } elsif ($target eq 'web'
2003: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
2004: && $env{'request.state'} eq "construct") {
1.349 albertel 2005: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 2006: }
1.371 albertel 2007: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
2008: &reset_problem_globals('library');
2009: }
1.159 albertel 2010: return $result;
1.197 www 2011: }
2012:
2013: sub start_definetag {
1.326 albertel 2014: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 2015:
2016: my $result;
2017:
2018: my $name = $token->[2]->{'name'};
1.326 albertel 2019: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 2020: if ($target eq 'web') {
2021: if ($name=~/^\//) {
2022: $result=
2023: '<br /><table class="LC_sty_end"><tr><th>'.
2024: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2025: } else {
2026: $result=
2027: '<br /><table class="LC_sty_begin"><tr><th>'.
2028: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2029: }
2030: $skip = &HTML::Entities::encode($skip, '<>&"');
2031: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 2032: }
2033: return $result;
2034: }
2035:
2036: sub end_definetag {
2037: return '';
1.1 albertel 2038: }
2039:
2040: sub start_block {
1.201 albertel 2041: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 2042:
2043: my $result;
1.1 albertel 2044:
1.339 albertel 2045: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2046: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 2047: my $code = $token->[2]->{'condition'};
1.385 albertel 2048: if (defined($code) && $code ne '') {
1.137 albertel 2049: if (!$Apache::lonxml::default_homework_loaded) {
2050: &Apache::lonxml::default_homework_load($safeeval);
2051: }
1.131 albertel 2052: $result = &Apache::run::run($code,$safeeval);
2053: &Apache::lonxml::debug("block :$code: returned :$result:");
2054: } else {
2055: $result='1';
2056: }
2057: if ( ! $result ) {
1.201 albertel 2058: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 2059: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2060: }
2061: $result='';
2062: } elsif ($target eq 'edit') {
2063: $result .=&Apache::edit::tag_start($target,$token);
2064: $result .=&Apache::edit::text_arg('Test Condition:','condition',
2065: $token,40);
2066: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2067: } elsif ($target eq 'modified') {
2068: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2069: $safeeval,'condition');
2070: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 2071: }
1.131 albertel 2072: return $result;
1.1 albertel 2073: }
2074:
2075: sub end_block {
1.167 www 2076: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2077: my $result;
2078: if ($target eq "edit") {
2079: $result.= &Apache::edit::tag_end($target,$token,'');
2080: }
2081: return $result;
2082: }
1.500 foxr 2083: #
2084: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
2085: # ...
2086: # </languageblock>
2087: #
2088: # This declares the intent to provide content that can be rendered in the
2089: # set of languages in the include specificatino but not in the exclude
2090: # specification. If a currently preferred language is in the include list
2091: # the content in the <languageblock>...</languageblock> is rendered
2092: # If the currently preferred language is in the exclude list,
2093: # the content in the <languageblock>..></languageblock is not rendered.
2094: #
2095: # Pathalogical case handling:
2096: # - Include specified, without the preferred language but exclude specified
2097: # also without the preferred langauge results in rendering the block.
2098: # - Exclude specified without include and excluden not containing a
2099: # preferred language renders the block.
2100: # - Include and exclude both specifying the preferred language does not
2101: # render the block.
2102: # - If neither include/exclude is specified, the block gets rendered.
2103: #
2104: # This tag has no effect when target is in {edit, modified}
2105: #
1.167 www 2106: sub start_languageblock {
1.201 albertel 2107: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 2108:
1.500 foxr 2109: my $result = '';
1.167 www 2110:
1.339 albertel 2111: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2112: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 2113: my $include = $token->[2]->{'include'};
2114: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 2115: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 2116:
2117: # This should not even happen, since we should at least have the server language
2118:
2119: if (!$preferred_languages[0]) {
2120: $preferred_languages[0]='en';
2121: }
2122:
2123: # Now loop over all languages in order of preference
2124:
2125: my $render;
1.398 www 2126: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 2127:
2128: # If neither include/nor exlude is present the block is going
2129: # to get rendered.
2130:
1.399 www 2131: my $found=0;
1.500 foxr 2132: $render=1;
2133:
2134: # If include is specified, don't render the block
2135: # unless the preferred language is included in the set.
2136:
1.398 www 2137: if ($include) {
1.500 foxr 2138: $render=0;
1.398 www 2139: foreach my $included_language (split(/\,/,$include)) {
2140: if ($included_language eq $preferred_language) {
1.500 foxr 2141: $render=1;
1.399 www 2142: $found=1;
1.500 foxr 2143: last; # Only need to find the first.
1.398 www 2144: }
2145: }
2146: }
1.500 foxr 2147: # Do we have an exclude argument?
2148: # If so, and one of the languages matches a preferred language
2149: # inhibit rendering the block. Note that in the pathalogical case the
2150: # author has specified a preferred language in both the include and exclude
2151: # attribte exclude is preferred.
2152:
1.398 www 2153: if ($exclude) {
1.500 foxr 2154: $render=1;
1.398 www 2155: foreach my $excluded_language (split(/\,/,$exclude)) {
2156: if ($excluded_language eq $preferred_language) {
1.500 foxr 2157: $render=0;
1.399 www 2158: $found=1;
1.500 foxr 2159: last; # Only need to find the first.
1.398 www 2160: }
2161: }
2162: }
1.500 foxr 2163: if ($found) {
2164: last; # Done on any match of include or exclude.
2165: }
1.398 www 2166: }
1.500 foxr 2167: # If $render not true skip the entire block until </languageblock>
2168: #
2169:
2170: if ( ! $render ) {
1.201 albertel 2171: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
2172: $style);
2173: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2174: }
1.500 foxr 2175: # If $render is true, we've not skipped the contents of the <languageglock>
2176: # and the normal loncapa processing flow will render it as a matter of course.
2177:
1.167 www 2178: } elsif ($target eq 'edit') {
2179: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2180: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 2181: $token,40);
1.211 albertel 2182: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 2183: $token,40);
2184: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2185: } elsif ($target eq 'modified') {
2186: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 2187: $safeeval,'include',
2188: 'exclude');
1.167 www 2189: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2190: }
2191: return $result;
2192: }
2193:
2194: sub end_languageblock {
1.170 www 2195: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2196: my $result;
1.201 albertel 2197: if ($target eq "edit") {
1.170 www 2198: $result.= &Apache::edit::tag_end($target,$token,'');
2199: }
2200: return $result;
2201: }
1.500 foxr 2202: # languagblock specific tags:
2203: {
2204: # For chunks of a resource that has translations, this hash contains
2205: # the translations available indexed by language name.
2206: #
2207:
2208: my %available_texts;
1.170 www 2209:
1.500 foxr 2210: # <translated> starts a block of a resource that has multiple translations.
2211: # See the <lang> tag as well.
2212: # When </translated> is encountered if there is a translation for the
2213: # currently preferred language, that is rendered inthe web/tex/webgrade
2214: # targets. Otherwise, the default text is rendered.
2215: #
2216: # Note that <lang> is only registered for the duration of the
2217: # <translated>...</translated> block
2218: #
2219: # Pathalogical case handling:
2220: # - If there is no <lang> that specifies a 'default' and there is no
2221: # translation that matches a preferred language, nothing is rendered.
2222: # - Nested <translated>...</translated> might be linguistically supported by
2223: # XML due to the stack nature of tag registration(?) however the rendered
2224: # output will be incorrect because there is only one %available_texts
2225: # has and end_translated clears it.
2226: # - Material outside of a <lang>...</lang> block within the
2227: # <translated>...<translated> block won't render either e.g.:
2228: # <translated>
2229: # The following will be in your preferred langauge:
2230: # <lang which='en'>
2231: # This section in english
2232: # </lang>
2233: # <lang which='sgeiso'>
2234: # Hier es ist auf Deutsch.
2235: # </lang>
2236: # <lang which='sfriso'>
2237: # En Francais
2238: # </lang>
2239: # </translated>
2240: #
2241: # The introductory text prior to the first <lang> tag is not rendered.
2242: #
1.397 albertel 2243: sub start_translated {
2244: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2245: &Apache::lonxml::register('Apache::structuretags',('lang'));
2246: undef(%available_texts);
2247: }
2248:
2249: sub end_translated {
2250: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2251: my $result;
2252: #show the translation on viewable targets
2253: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
2254: # or non-viewable targets, if it's embedded in something that
2255: # wants the output
2256: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
2257: && &Apache::lonxml::in_redirection() ) ) {
2258: my @possibilities = keys(%available_texts);
2259: my $which =
2260: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 2261: if ($target eq 'tex') {
2262: $result = &select_hyphenation($which);
2263: }
2264: $result .= $available_texts{$which};
2265: if ($target eq 'tex') {
2266: $result .= &select_metadata_hyphenation(); # Restore original language.
2267: }
1.397 albertel 2268: }
2269: undef(%available_texts);
2270: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
2271: return $result;
2272: }
2273:
1.500 foxr 2274: # <lang [which='language-name'] [other='lang1,lang2...']>
2275: # Specifies that the block contained within it is a translation
2276: # for a specific language specified by the 'which' attribute. The
2277: # 'other' attribute can be used by itself or in conjunction with
2278: # which to specify this tag _may_ be used as a translation for some
2279: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
2280: # specifying that the block provides a translation for US (primary)
2281: # Canadian, Australian and UK Englush.
2282: #
2283: # Comment: this seems a bit silly why not just support a list of languages
2284: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
2285: #
2286: # Effect:
2287: # The material within the <lang>..</lang> block is stored in the
2288: # specified set of $available_texts hash entries, the appropriate one
2289: # is selected at </translated> time.
2290: #
2291: # Pathalogical case handling:
2292: # If a language occurs multiple times within a <translated> block,
2293: # only the last one is rendered e.g.:
2294: #
2295: # <translated>
2296: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
2297: # Red green color blindness is quite common affecting about 7.8% of
2298: # the male population, but onloy about .65% of the female population.
2299: # </lang>
2300: # Red green colour blindness is quite common affecting about 7.8% of
2301: # the male population, but onloy about .65% of the female population.
2302: # <lang which='seniso', other='senisoCA,senisoAU'>
2303: # </translated>
2304: #
2305: # renders the correct spelling of color (colour) for people who have specified
2306: # a preferred language that is one of the British Commonwealth languages
2307: # even though those are also listed as valid selections for the US english
2308: # <lang> block.
2309: #
1.397 albertel 2310: sub start_lang {
2311: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2312: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2313: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2314: &Apache::lonxml::startredirection();
2315: }
2316: return '';
2317: }
2318:
2319: sub end_lang {
2320: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2321: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2322: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2323: my $result = &Apache::lonxml::endredirection();
2324: my $which = &Apache::lonxml::get_param('which',$parstack,
2325: $safeeval);
1.431 raeburn 2326: if ($which=~/\w/) {
2327: $available_texts{$which} = $result;
2328: }
2329: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
2330: $safeeval);
2331: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
2332: if ($language=~/\w/) {
2333: $available_texts{$language} = $result;
2334: }
1.427 bisitz 2335: }
2336:
1.397 albertel 2337: }
2338: return '';
2339: }
1.500 foxr 2340: } # end langauge block specific tags.
2341:
1.397 albertel 2342:
1.170 www 2343: sub start_instructorcomment {
1.201 albertel 2344: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 2345:
2346: my $result;
2347:
1.339 albertel 2348: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2349: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 2350: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 2351: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 2352: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
2353: $parser,$style);
1.170 www 2354: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2355: }
2356: $result='';
2357: } elsif ($target eq 'edit') {
2358: $result .=&Apache::edit::tag_start($target,$token);
2359: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2360: }
2361: return $result;
2362: }
2363:
2364: sub end_instructorcomment {
1.159 albertel 2365: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2366: my $result;
2367: if ($target eq "edit") {
2368: $result.= &Apache::edit::tag_end($target,$token,'');
2369: }
2370: return $result;
1.4 tsai 2371: }
2372:
2373: sub start_while {
1.326 albertel 2374: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2375:
1.160 albertel 2376: my $result;
1.339 albertel 2377: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2378: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2379: my $code = $token->[2]->{'condition'};
1.4 tsai 2380:
1.160 albertel 2381: push( @Apache::structuretags::whileconds, $code);
2382: if (!$Apache::lonxml::default_homework_loaded) {
2383: &Apache::lonxml::default_homework_load($safeeval);
2384: }
2385: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2386: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2387: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2388: push( @Apache::structuretags::whileline, $token->[5]);
2389: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2390: if ( $result ) {
2391: &Apache::lonxml::newparser($parser,\$bodytext);
2392: }
2393: } elsif ($target eq 'edit') {
2394: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2395: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2396: $token,40);
2397: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2398: } elsif ($target eq 'modified') {
2399: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2400: $safeeval,'condition');
2401: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2402: }
1.160 albertel 2403: return $result;
1.4 tsai 2404: }
2405:
2406: sub end_while {
1.159 albertel 2407: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2408: my $result;
2409:
1.339 albertel 2410: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2411: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2412: my $code = pop(@Apache::structuretags::whileconds);
2413: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2414: my $line = pop(@Apache::structuretags::whileline);
2415: my $return = &Apache::run::run($code,$safeeval);
2416: my $starttime=time;
2417: my $error=0;
2418: while ($return) {
2419: if (time-$starttime >
2420: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2421: $return = 0; $error=1; next;
1.161 albertel 2422: }
2423: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2424: if ($target eq 'grade' || $target eq 'answer' ||
2425: $target eq 'analyze') {
2426: # grade/answer/analyze should produce no output but if we
2427: # are redirecting, the redirecter should know what to do
2428: # with the output
2429: if (!$Apache::lonxml::redirection) { undef($result); }
2430: }
1.161 albertel 2431: $return = &Apache::run::run($code,$safeeval);
2432: }
1.516 bisitz 2433: if ($error) {
2434: &Apache::lonxml::error(
2435: '<pre>'
2436: .&mt('Code ran too long. It ran for more than [_1] seconds.',
2437: $Apache::lonnet::perlvar{'lonScriptTimeout'})
2438: .&mt('This occurred while running <while> on line [_1].',
2439: $line)
2440: .'</pre>');
2441: }
1.160 albertel 2442: } elsif ($target eq "edit") {
2443: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2444: }
1.160 albertel 2445: return $result;
1.1 albertel 2446: }
1.6 tsai 2447:
1.160 albertel 2448: # <randomlist show="1">
1.6 tsai 2449: # <tag1>..</tag1>
2450: # <tag2>..</tag2>
2451: # <tag3>..</tag3>
1.160 albertel 2452: # ...
1.6 tsai 2453: # </randomlist>
2454: sub start_randomlist {
1.326 albertel 2455: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2456: my $result;
1.339 albertel 2457: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2458: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2459: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2460: my $b_parser= HTML::LCParser->new(\$body);
2461: $b_parser->xml_mode(1);
2462: $b_parser->marked_sections(1);
1.159 albertel 2463: my $b_tok;
2464: my @randomlist;
2465: my $list_item;
2466: while($b_tok = $b_parser->get_token() ) {
2467: if($b_tok->[0] eq 'S') { # start tag
2468: # get content of the tag until matching end tag
2469: # get all text upto the matching tag
2470: # and push the content into @randomlist
2471: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2472: $b_parser);
2473: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2474: push(@randomlist,$list_item);
2475: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2476: # $list_item</b>";
2477: }
2478: if($b_tok->[0] eq 'T') { # text
2479: # what to do with text in between tags?
2480: # print "<b>TEXT $b_tok->[1]</b><br />";
2481: }
2482: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2483: # print "<b>END-TAG $b_tok->[1]</b><br />";
2484: # }
2485: }
1.303 albertel 2486: if (@randomlist) {
2487: my @idx_arr = (0 .. $#randomlist);
2488: &Apache::structuretags::shuffle(\@idx_arr);
2489: my $bodytext = '';
2490: my $show=$#randomlist;
2491: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2492: $showarg--;
2493: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2494: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2495: my @currlist;
2496: my $part = $Apache::inputtags::part;
2497: if ($part ne '') {
2498: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2499: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2500: if (!(grep(/^\Q$part\E$/,@currlist))) {
2501: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2502: }
2503: } else {
2504: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2505: }
2506: }
2507: }
1.526 raeburn 2508: for my $i (0 .. $show) {
2509: $bodytext .= "$randomlist[ $idx_arr[$i] ]";
1.303 albertel 2510: }
2511: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2512: }
2513: } elsif ($target eq 'edit' ) {
2514: $result .=&Apache::edit::tag_start($target,$token);
2515: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2516: $token,5);
2517: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2518: } elsif ($target eq 'modified' ) {
2519: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2520: $safeeval,'show');
2521: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2522: }
2523: return $result;
1.7 tsai 2524: }
2525:
2526: sub shuffle {
2527: my $a=shift;
2528: my $i;
1.303 albertel 2529: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 2530: &Apache::response::pushrandomnumber();
1.159 albertel 2531: for($i=@$a;--$i;) {
2532: my $j=int(&Math::Random::random_uniform() * ($i+1));
2533: next if $i == $j;
2534: @$a[$i,$j] = @$a[$j,$i];
2535: }
1.251 albertel 2536: &Apache::response::poprandomnumber();
1.7 tsai 2537: }
1.6 tsai 2538: }
2539:
2540: sub end_randomlist {
1.159 albertel 2541: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2542: my $result;
2543: if ($target eq 'edit' ) {
2544: $result=&Apache::edit::tag_end($target,$token,
2545: 'End Randomly Parsed Block');
2546: }
2547: return $result;
1.6 tsai 2548: }
2549:
1.283 albertel 2550: sub ordered_show_check {
2551: my $last_part=$Apache::inputtags::partlist[-2];
2552: my $in_order=
2553: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2554: my $in_order_show=1;
2555: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2556: $in_order_show=&Apache::response::check_status($last_part);
2557: }
2558: return $in_order_show;
2559: }
2560:
1.469 www 2561:
2562: sub start_startpartmarker {
2563: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2564: my $result='';
2565: if ($target eq 'edit') {
2566: $result=&Apache::edit::tag_start($target,$token);
2567: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2568: $result.=&Apache::edit::end_table();
2569:
2570: }
2571: return $result;
2572: }
2573:
2574: sub end_startpartmarker {
2575: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2576: my @result;
2577: if ($target eq 'edit') { $result[1]='no'; }
2578: return @result;
2579: }
2580:
2581: sub start_endpartmarker {
2582: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2583: my $result='';
2584: if ($target eq 'edit') {
2585: $result=&Apache::edit::tag_start($target,$token);
2586: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2587: $result.=&Apache::edit::end_table();
2588:
2589: }
2590: return $result;
2591: }
2592:
2593: sub end_endpartmarker {
2594: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2595: my @result;
2596: if ($target eq 'edit') { $result[1]='no'; }
2597: return @result;
2598: }
2599:
2600:
2601:
2602:
2603:
1.11 albertel 2604: sub start_part {
1.326 albertel 2605: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2606: if (!$Apache::lonxml::metamode) {
2607: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2608: # duedates.
2609: }
1.159 albertel 2610: my $result='';
1.386 albertel 2611: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2612: $Apache::inputtags::part=$id;
1.177 albertel 2613: push(@Apache::inputtags::partlist,$id);
1.536 raeburn 2614: $Apache::inputtags::leniency='';
1.177 albertel 2615: @Apache::inputtags::response=();
1.159 albertel 2616: @Apache::inputtags::previous=();
2617: @Apache::inputtags::previous_version=();
1.405 albertel 2618: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2619: &Apache::response::reset_params();
2620:
1.159 albertel 2621: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2622: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2623: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.528 raeburn 2624: if ($Apache::lonhomework::type eq 'randomizetry') {
2625: my $rndseed=&setup_rndseed($safeeval,$target);
2626: if (($target eq 'grade') && &Apache::response::submitted()) {
1.529 raeburn 2627: $Apache::lonhomework::results{"resource.$id.rndseed"}=$rndseed;
1.528 raeburn 2628: }
2629: } elsif (($target eq 'grade') && &Apache::response::submitted()) {
1.529 raeburn 2630: $Apache::lonhomework::results{"resource.$id.rndseed"}=$Apache::lonhomework::rawrndseed;
1.528 raeburn 2631: }
1.283 albertel 2632: my $in_order_show=&ordered_show_check();
1.214 albertel 2633: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2634: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2635: &Apache::run::run($expression,$safeeval);
1.159 albertel 2636:
2637: if ($target eq 'meta') {
1.224 www 2638: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2639: return &Apache::response::mandatory_part_meta.
2640: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2641: } elsif ($target eq 'web' || $target eq 'grade' ||
2642: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2643: if ($hidden || !$in_order_show) {
1.326 albertel 2644: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2645: } else {
2646: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2647: push (@Apache::inputtags::status,$status);
2648: my $expression='$external::datestatus="'.$status.'";';
2649: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2650: &Apache::run::run($expression,$safeeval);
1.284 albertel 2651: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2652: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2653: }
1.216 albertel 2654: if (( $status eq 'CLOSED' ) ||
2655: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2656: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2657: ( $status eq 'BANNED') ||
2658: ( $status eq 'UNAVAILABLE') ||
2659: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2660: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2661: $style);
1.159 albertel 2662: if ( $target eq "web" ) {
1.211 albertel 2663: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2664: } elsif ( $target eq 'tex' ) {
1.284 albertel 2665: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2666: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2667: } else {
1.211 albertel 2668: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2669: }
1.159 albertel 2670: }
2671: } else {
2672: if ($target eq 'tex') {
1.284 albertel 2673: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2674: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2675: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2676: } else {
2677: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2678: }
1.195 sakharuk 2679: }
1.159 albertel 2680: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2681: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.526 raeburn 2682: my @allkeys = split(/,/,$allkeys);
1.222 sakharuk 2683: my $allow_print_points = 0;
2684: foreach my $partial_key (@allkeys) {
1.230 albertel 2685: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2686: if ($1 ne '0') {$allow_print_points=1;}
2687: }
2688: }
1.275 albertel 2689: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2690: if (defined($maxtries) && $maxtries < 0) {
2691: $allow_print_points=0;
2692: }
1.302 albertel 2693: if (lc($env{'course.'.$env{'request.course.id'}.
2694: '.disableexampointprint'}) eq 'yes') {
2695: $allow_print_points=0;
2696: }
1.463 foxr 2697: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2698: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2699:
2700: }
1.233 www 2701: } elsif ($target eq 'web') {
1.479 raeburn 2702: if ($status eq 'CAN_ANSWER') {
2703: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2704: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
2705: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
2706: my $num = scalar(@Apache::inputtags::partlist)-1;
2707: if ($probrandomize eq 'randomizetry') {
2708: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
2709: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2710: } else {
2711: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2712: if ($probrandtries ne $reqtries) {
2713: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2714: }
2715: }
2716: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
2717: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2718: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2719: }
2720: }
1.475 raeburn 2721: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2722: }
2723: }
2724: }
2725: } elsif ($target eq 'edit') {
2726: $result.=&Apache::edit::tag_start($target,$token);
2727: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2728: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2729: ' '.
2730: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2731: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2732: } elsif ($target eq 'modified') {
2733: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2734: $safeeval,'id','display');
1.159 albertel 2735: if ($constructtag) {
1.225 albertel 2736: #limiting ids to only letters numbers, and space
1.224 www 2737: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2738: $result = &Apache::edit::rebuild_tag($token);
2739: }
2740: }
2741: return $result;
1.11 albertel 2742: }
2743:
2744: sub end_part {
1.159 albertel 2745: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2746: &Apache::lonxml::debug("in end_part $target ");
2747: my $status=$Apache::inputtags::status['-1'];
2748: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2749: my $in_order_show=&ordered_show_check();
1.321 albertel 2750: my $result;
2751: if (!$Apache::lonxml::metamode) {
2752: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2753: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2754: }
1.312 albertel 2755: if ($target eq 'grade') {
1.249 albertel 2756: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2757: !$hidden && $in_order_show) {
1.311 foxr 2758: $result.=&Apache::inputtags::grade;
1.249 albertel 2759: } else {
2760: # move any submission data to .hidden
2761: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2762: }
1.283 albertel 2763: } elsif (($target eq 'web' || $target eq 'tex') &&
2764: !$hidden && $in_order_show) {
1.159 albertel 2765: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2766: $target);
1.490 raeburn 2767: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2768: ($env{'form.grade_imsexport'})) {
1.212 albertel 2769: $gradestatus='';
2770: }
1.311 foxr 2771: $result.=$gradestatus;
1.265 sakharuk 2772: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2773: } elsif ($target eq 'edit') {
1.311 foxr 2774: $result.=&Apache::edit::end_table();
1.322 albertel 2775: } elsif ($target eq 'modified') {
2776: $result .= $token->[2];
1.159 albertel 2777: }
2778: pop @Apache::inputtags::status;
2779: $Apache::inputtags::part='';
1.536 raeburn 2780: $Apache::inputtags::leniency='';
1.295 albertel 2781: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2782: return $result;
1.11 albertel 2783: }
1.1 albertel 2784:
1.25 albertel 2785: sub start_preduedate {
1.326 albertel 2786: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2787: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2788: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2789: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2790: if (!$Apache::lonhomework::scantronmode &&
2791: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2792: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2793: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2794: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2795: }
1.24 albertel 2796: }
1.159 albertel 2797: return '';
1.24 albertel 2798: }
2799:
1.25 albertel 2800: sub end_preduedate {
1.159 albertel 2801: return '';
1.24 albertel 2802: }
2803:
1.369 foxr 2804: # In all the modes where <postanswerdate> text is
2805: # displayable, all we do is eat up the text between the start/stop
2806: # tags if the conditions are not right to display it.
1.25 albertel 2807: sub start_postanswerdate {
1.326 albertel 2808: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2809: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2810: &Apache::lonnet::allowed('pav',
2811: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2812: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2813: $target eq 'tex' ) {
1.300 albertel 2814: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2815: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2816: (($target eq 'tex') && !$pav)) {
1.326 albertel 2817: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2818: }
2819: }
2820: return '';
1.24 albertel 2821: }
2822:
1.25 albertel 2823: sub end_postanswerdate {
1.159 albertel 2824: return '';
1.24 albertel 2825: }
2826:
1.25 albertel 2827: sub start_notsolved {
1.326 albertel 2828: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2829: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2830: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2831: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2832: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2833: if ($gradestatus =~ /^correct/ &&
2834: &Apache::response::show_answer()) {
1.159 albertel 2835: &Apache::lonxml::debug("skipping");
1.326 albertel 2836: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2837: }
1.24 albertel 2838: }
1.159 albertel 2839: return '';
1.24 albertel 2840: }
2841:
1.25 albertel 2842: sub end_notsolved {
1.159 albertel 2843: return '';
1.24 albertel 2844: }
2845:
2846: sub start_solved {
1.326 albertel 2847: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2848: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2849: $target eq 'tex') {
2850: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2851: if ($gradestatus !~ /^correct/ ||
2852: !&Apache::response::show_answer()) {
1.326 albertel 2853: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2854: }
1.24 albertel 2855: }
1.159 albertel 2856: return '';
1.24 albertel 2857: }
2858:
2859: sub end_solved {
1.248 albertel 2860: return '';
2861: }
2862:
2863: sub start_problemtype {
1.326 albertel 2864: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2865: my $result;
1.339 albertel 2866: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2867: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2868: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2869: if (!defined($mode)) { $mode='show'; }
2870: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2871: my $found=0;
2872: foreach my $type (split(',',$for)) {
2873: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2874: }
2875: if ($mode eq 'show' && !$found) {
1.326 albertel 2876: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2877: }
2878: if ($mode eq 'hide' && $found) {
1.326 albertel 2879: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2880: }
2881: } elsif ($target eq 'edit') {
2882: $result .=&Apache::edit::tag_start($target,$token);
2883: $result.=&Apache::edit::select_arg('Mode:','mode',
2884: [['show','Show'],
2885: ['hide','Hide']]
2886: ,$token);
2887: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.511 bisitz 2888: [ ['exam','Bubblesheet Exam/Quiz Problem'],
1.248 albertel 2889: ['survey','Survey'],
1.465 raeburn 2890: ['surveycred','Survey (with credit)'],
2891: ['anonsurvey','Anonymous Survey'],
2892: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2893: ['problem','Homework Problem'],
1.479 raeburn 2894: ['practice','Practice Problem'],
2895: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2896: ,$token);
2897: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2898: } elsif ($target eq 'modified') {
2899: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2900: $safeeval,'mode','for');
2901: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2902: }
2903: return $result;
2904: }
2905:
2906: sub end_problemtype {
1.159 albertel 2907: return '';
1.24 albertel 2908: }
1.34 albertel 2909:
2910: sub start_startouttext {
1.159 albertel 2911: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2912: my @result=(''.'');
2913: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2914:
2915: my $nesting =
2916: &Apache::lonxml::set_state('outtext',
2917: &Apache::lonxml::get_state('outtext')+1);
2918: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2919: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2920: }
1.159 albertel 2921: return (@result);
1.34 albertel 2922: }
1.159 albertel 2923:
1.34 albertel 2924: sub end_startouttext {
1.326 albertel 2925: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2926: my $result='';
2927: my $text='';
2928: if ($target eq 'edit') {
1.424 foxr 2929: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2930: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.527 golterma 2931: $result.=&Apache::edit::start_table($token)."<tr><td>".&Apache::loncommon::insert_folding_button()
2932: ." ".&mt('Text Block')."</td>"
1.438 bisitz 2933: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2934: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 2935: .'</span></td>'
1.515 golterma 2936: .'<td><span id="math_'.$areaid.'">'
1.474 raeburn 2937: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
1.512 bisitz 2938: .'</span></td>'
1.474 raeburn 2939: .'<td>'
2940: .&Apache::edit::insertlist($target,$token)
2941: .'</td>'
1.515 golterma 2942: .'<td class="LC_edit_problem_latexhelper">' .
1.474 raeburn 2943: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2944: &Apache::edit::end_row().
1.362 albertel 2945: &Apache::edit::start_spanning_row()."\n".
1.255 www 2946: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2947: }
2948: if ($target eq 'modified') {
1.219 albertel 2949: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2950: }
2951: if ($target eq 'tex') {
2952: $result .= '\noindent ';
2953: }
2954: return $result;
1.34 albertel 2955: }
1.159 albertel 2956:
1.34 albertel 2957: sub start_endouttext {
1.159 albertel 2958: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2959: my $result='';
2960: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2961: if ($target eq "modified") {
2962: $result='<endouttext />'.
1.377 albertel 2963: &Apache::edit::handle_insertafter('startouttext');
2964: }
1.404 albertel 2965:
2966: my $nesting =
2967: &Apache::lonxml::set_state('outtext',
2968: &Apache::lonxml::get_state('outtext')-1);
2969: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2970: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2971: &Apache::lonxml::set_state('outtext', 0);
2972: }
1.159 albertel 2973: return $result;
1.34 albertel 2974: }
1.159 albertel 2975:
1.34 albertel 2976: sub end_endouttext {
1.159 albertel 2977: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2978: my @result=('','');
2979: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2980: return (@result);
1.34 albertel 2981: }
1.159 albertel 2982:
1.45 albertel 2983: sub delete_startouttext {
1.326 albertel 2984: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2985: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2986: my $text=$$parser['-1']->get_text("/endouttext");
2987: my $ntoken=$$parser['-1']->get_token();
2988: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2989: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2990: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2991: # they did the last time round
2992: &Apache::lonxml::increasedepth($ntoken);
2993: &Apache::lonxml::decreasedepth($ntoken);
2994: return 1;
1.193 www 2995: }
2996:
2997: sub start_simpleeditbutton {
2998: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2999: my $result='';
1.284 albertel 3000: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 3001: ($target eq 'web') &&
1.330 albertel 3002: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 3003: my $url=$env{'request.noversionuri'};
1.193 www 3004: $url=~s/\?.*$//;
1.367 albertel 3005: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 3006: # Warning makes more sense and is more important on edit screen
1.442 bisitz 3007: # $result='<p class="LC_warning">'
3008: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
3009: # .&Apache::loncommon::help_open_topic('Caching')
3010: # .'</p>';
1.486 www 3011: $result.=&Apache::loncommon::head_subbox(
3012: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 3013: .&Apache::lonhtmlcommon::add_item_funclist(
3014: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
3015: .&mt('Edit').'</a>')
1.486 www 3016: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 3017:
1.193 www 3018: }
3019: return $result;
3020: }
3021:
3022: sub end_simpleeditbutton {
3023: return '';
1.45 albertel 3024: }
1.34 albertel 3025:
1.428 raeburn 3026: sub practice_problem_header {
3027: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
3028: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
3029: '</span>';
3030: }
3031:
1.479 raeburn 3032: sub randomizetry_problem_header {
3033: my ($problemstatus,$reqtries) = @_;
3034: my ($header,$text);
3035: if ($reqtries > 1) {
3036: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
3037: if (($problemstatus eq 'no') ||
3038: ($problemstatus eq 'no_feedback_ever')) {
3039: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3040: } else {
3041: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3042: }
3043: } else {
3044: $header = &mt('New Problem Variation Each Try');
3045: if (($problemstatus eq 'no') ||
3046: ($problemstatus eq 'no_feedback_ever')) {
3047: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
3048:
3049: } else {
3050: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
3051: }
3052: }
3053: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
3054: '<span class="LC_info">'.$text.'</span><hr />';
3055: }
3056:
3057: sub randomizetry_part_header {
3058: my ($problemstatus,$reqtries,$num) = @_;
3059: my ($header,$text);
3060: if ($reqtries eq 'none') {
3061: $header = &mt('No Question Variation');
3062: $text = &mt('For this question there will no new variation after a try.');
3063: } elsif ($reqtries > 1) {
3064: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
3065: if (($problemstatus eq 'no') ||
3066: ($problemstatus eq 'no_feedback_ever')) {
3067: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3068: } else {
3069: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3070: }
3071: } else {
3072: $header = &mt('New Question Variation For Each Try');
3073: if (($problemstatus eq 'no') ||
3074: ($problemstatus eq 'no_feedback_ever')) {
3075: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
3076: } else {
3077: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
3078: }
3079: }
3080: my $output;
3081: if ($num > 1) {
3082: $output .= '<hr />';
3083: }
3084: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
3085: '<span class="LC_info">'.$text.'</span><br /><br />';
3086: return $output;
3087: }
3088:
1.1 albertel 3089: 1;
3090: __END__
1.435 jms 3091:
3092: =pod
3093:
3094: =back
3095:
3096: =cut
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