Annotation of loncom/homework/structuretags.pm, revision 1.536
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.536 ! raeburn 4: # $Id: structuretags.pm,v 1.535 2015/04/17 12:33:56 droeschl Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.435 jms 30: =pod
31:
32: =head1 NAME
33:
34: Apache::structuretags
35:
36: =head1 SYNOPSIS
37:
38:
39: This is part of the LearningOnline Network with CAPA project
40: described at http://www.lon-capa.org.
41:
42:
43: =head1 NOTABLE SUBROUTINES
44:
45: =over
46:
47: =item
48:
49: =back
50:
51: =cut
52:
1.133 sakharuk 53:
1.1 albertel 54: package Apache::structuretags;
55:
56: use strict;
57: use Apache::lonnet;
1.101 sakharuk 58: use Apache::File();
1.147 www 59: use Apache::lonmenu;
1.210 albertel 60: use Apache::lonlocal;
1.231 sakharuk 61: use Apache::lonxml;
1.434 foxr 62: use Apache::londefdef;
1.338 albertel 63: use Apache::lonenc();
1.500 foxr 64: use Apache::loncommon();
1.267 albertel 65: use Time::HiRes qw( gettimeofday tv_interval );
1.356 www 66: use lib '/home/httpd/lib/perl/';
67: use LONCAPA;
68:
1.78 harris41 69: BEGIN {
1.469 www 70: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','translated','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startpartmarker','startouttext','endpartmarker','endouttext','simpleeditbutton','definetag'));
1.10 albertel 71: }
72:
1.500 foxr 73:
74: #---------------------------------------------------------------------------------
75: #
76: # This section of code deals with hyphenation management.
77: # We must do three things:
78: # - keep track fo the desired languages to alter the header.
79: # - provide hyphenation selection as needed by each language that appears in the
80: # text.
81: # - Provide the header text needed to make available the desired hyphenations.
82: #
83: #
84:
85: # Hash whose keys are the languages encountered in the document/resource.
86: #
87:
88: my %languages_required;
89: ##
90: # Given a language selection as input returns a chunk of LaTeX that
91: # selects the required hyphenator.
92: #
93: # @param language - the language being selected.
94: # @return string
95: # @retval The LaTeX needed to select the hyphenation appropriate to the language.
96: #
97: sub select_hyphenation {
98: my $language = shift;
99:
100: $language = &Apache::loncommon::latexlanguage($language); # Translate -> latex language.
101:
102: # If there is no latex language there's not much we can do:
103:
104: if ($language) {
105: &require_language($language);
106: my $babel_hyphenation = "\\selectlanguage{$language}";
107:
108: return $babel_hyphenation;
109: } else {
110: return '';
111: }
112: }
113: ##
114: # Selects hyphenation based on the current problem metadata.
115: # This requires that
116: # - There is a language metadata item set for the problem.
117: # - The language has a latex/babel hyphenation.
118: #
119: # @note: Uses &Apache::lonxml::request to locate the Uri associated with
120: # this problem.
121: # @return string (possibly empty).
122: # @retval If not empty an appropriate \selectlanguage{} directive.
123: #
124: sub select_metadata_hyphenation {
125: my $uri = $Apache::lonxml::request->uri;
126: my $language = &Apache::lonnet::metadata($uri, 'language');
127: my $latex_language = &Apache::loncommon::latexhyphenation($language);
128: if ($latex_language) {
129: return '\selectlanguage{'.$latex_language."}\n";
130: }
131: return ''; # no latex hyphenation or no lang metadata.
132: }
133:
134:
135: ##
136: # Clears the set of languages required by the document being rendered.
137: #
138: sub clear_required_languages {
139: %languages_required = ();
140: }
141: ##
142: # Allows an external client of this module to register a need for a language:
143: #
144: # @param LaTeX language required:
145: #
146: sub require_language {
147: my $language = shift;
148: $languages_required{$language} = 1;
149: }
150:
151: ##
152: # Provides the header for babel that indicates the languages
153: # the document requires.
154: # @return string
155: # @retval \usepackage[lang1,lang2...]{babel}
156: # @retval '' if there are no languages_required.
157: sub languages_header {
158: my $header ='';
159: my @languages = (keys(%languages_required));
160:
161: # Only generate the header if there are languages:
162:
163: if (scalar @languages) {
164: my $language_list = join(',', (@languages));
165: $header = '\usepackage['.$language_list."]{babel}\n";
166: }
167: return $header;
168: }
169:
170: #----------------------------------------------------------------------------------
171:
1.10 albertel 172: sub start_web {
1.326 albertel 173: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 174: if ($target ne 'edit' && $target ne 'modified') {
175: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
176: if ($target eq 'web' || $target eq 'webgrade') {
177: return $bodytext;
178: }
179: } elsif ($target eq "edit" ) {
180: my $bodytext =
181: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
182: my $result = &Apache::edit::tag_start($target,$token);
183: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
184: return $result;
185: } elsif ( $target eq "modified" ) {
186: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 187: }
188: return '';
1.10 albertel 189: }
190:
191: sub end_web {
1.44 ng 192: return '';
1.10 albertel 193: }
194:
195: sub start_tex {
1.326 albertel 196: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 197: my $result='';
1.383 albertel 198: if ($target ne 'edit' && $target ne 'modified') {
199: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
200: if ($target eq 'tex') {
1.434 foxr 201:
202: # If inside a table, occurrences of \\ must be removed;
203: # else the table blows up.
204:
205: if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
206: $bodytext =~ s/\\\\//g;
207: }
1.432 foxr 208: return $bodytext.'{}';
1.383 albertel 209: }
210: } elsif ($target eq "edit" ) {
211: my $bodytext =
212: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
213: my $result = &Apache::edit::tag_start($target,$token);
214: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
215: return $result;
216: } elsif ( $target eq "modified" ) {
217: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 218: }
1.198 sakharuk 219: return $result;;
1.10 albertel 220: }
221:
222: sub end_tex {
1.44 ng 223: return '';
1.9 albertel 224: }
225:
1.400 albertel 226: sub homework_js {
1.531 raeburn 227: my ($postsubmit,$timeout);
228: if (($env{'request.course.id'}) && ($env{'request.state'} ne 'construct')) {
229: my $crstype;
230: if (&Apache::loncommon::course_type() eq 'Community') {
231: $crstype = 'community';
232: } else {
233: if ($env{'course.'.$env{'request.course.id'}.'.internal.coursecode'}) {
234: $crstype = 'official';
235: } elsif ($env{'course.'.$env{'request.course.id'}.'.internal.textbook'}) {
236: $crstype = 'textbook';
237: } else {
238: $crstype = 'unofficial';
239: }
240: }
241: $postsubmit = $env{'course.'.$env{'request.course.id'}.'.internal.postsubmit'};
242: if ($postsubmit eq '') {
243: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
244: $postsubmit = $domdefs{'postsubmit'};
245: unless ($postsubmit eq 'off') {
246: $timeout = $domdefs{$crstype.'postsubtimeout'};
247: }
248: } elsif ($postsubmit eq '0') {
249: $postsubmit = 'off';
250: } elsif ($postsubmit eq '1') {
251: $postsubmit = 'on';
252: $timeout = $env{'course.'.$env{'request.course.id'}.'.internal.postsubtimeout'};
253: if ($timeout eq '') {
254: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
255: $timeout = $domdefs{$crstype.'postsubtimeout'};
256: }
257: }
258: if ($timeout eq '') {
259: $timeout = 60;
260: }
261: } else {
262: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'request.role.domain'});
263: $postsubmit = $domdefs{'postsubmit'};
264: unless ($postsubmit eq 'off') {
265: $timeout = 60;
266: }
267: }
268: my $jstimeout = 0;
269: if ($timeout) {
270: $jstimeout = 1000 * $timeout;
271: }
1.400 albertel 272: return &Apache::loncommon::resize_textarea_js().
1.527 golterma 273: &Apache::loncommon::colorfuleditor_js().
1.416 raeburn 274: &setmode_javascript().
1.531 raeburn 275: <<"JS";
1.400 albertel 276: <script type="text/javascript">
1.483 raeburn 277: // <![CDATA[
1.494 raeburn 278: function setSubmittedPart (part,prefix) {
279: if (typeof(prefix) == 'undefined') {
280: this.document.lonhomework.submitted.value="part_"+part;
281: } else {
282: for (var i=0;i<this.document.lonhomework.elements.length;i++) {
283: if (this.document.lonhomework.elements[i].name == prefix+'submitted') {
284: this.document.lonhomework.elements[i].value="part_"+part;
285: }
286: }
287: }
1.400 albertel 288: }
289:
1.532 raeburn 290: function disableAutoComplete (id) {
291: var field = document.getElementById(id);
292: if (field != null && field != undefined){
293: if ('autocomplete' in field) {
294: field.autocomplete = "off";
295: } else {
296: field.setAttribute("autocomplete", "off");
297: }
298: }
299: }
300:
1.400 albertel 301: function image_response_click (which, e) {
302: init_geometry();
303: if (!e) { e = window.event; } //IE
304: var input_element = document.lonhomework.elements[which];
1.401 albertel 305: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 306: var token = token_element.value;
1.401 albertel 307: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 308: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
309: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
310: var click = x+':'+y;
311: input_element.value = click;
1.485 raeburn 312: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
1.400 albertel 313: }
1.520 raeburn 314:
315: var submithandled = 0;
1.521 raeburn 316: var keypresshandled = 0;
1.531 raeburn 317: var postsubmit = '$postsubmit';
1.520 raeburn 318:
1.531 raeburn 319: \$(document).ready(function(){
320: if (postsubmit != 'off') {
321: \$(document).keypress(function(event){
1.521 raeburn 322: var keycode = (event.keyCode ? event.keyCode : event.which);
323: if ((keycode == '13') && (keypresshandled == 0)) {
1.531 raeburn 324: if ( \$( document.activeElement ).hasClass("LC_textline") ) {
1.521 raeburn 325: keypresshandled = 1;
1.531 raeburn 326: var idsArray = \$( document.activeElement ).attr("id").split(/HWVAL_/);
1.521 raeburn 327: if (idsArray.length) {
328: event.preventDefault();
329: var itemsArray = idsArray[1].split(/_/);
330: var buttonId = idsArray[0]+'submit_'+itemsArray[0];
1.531 raeburn 331: \$("#"+buttonId).trigger("click");
1.521 raeburn 332: }
333: }
334: }
335: });
336:
1.531 raeburn 337: \$(document).delegate('form :submit', 'click', function( event ) {
338: if ( \$( this ).hasClass( "LC_hwk_submit" ) ) {
1.520 raeburn 339: var buttonId = this.id;
1.531 raeburn 340: var timeout = $jstimeout;
1.520 raeburn 341: if (submithandled == 0) {
342: submithandled = 1;
1.531 raeburn 343: \$( "#msg_"+buttonId ).css({"display": "inline","background-color": "#87cefa",
1.521 raeburn 344: "color": "black","padding": "2px"}) ;
1.531 raeburn 345: if (( \$(this.form).id == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
1.522 raeburn 346: if (buttonId != "all_submit") {
1.531 raeburn 347: \$( ".LC_status_"+buttonId ).hide();
1.522 raeburn 348: if (( "#"+buttonId+"_pressed" ).length) {
1.531 raeburn 349: \$( "#"+buttonId+"_pressed" ).val( "1" );
1.522 raeburn 350: }
1.520 raeburn 351: }
1.522 raeburn 352: } else {
1.531 raeburn 353: \$( ".LC_status_"+buttonId ).hide();
1.520 raeburn 354: }
1.531 raeburn 355: \$(this.form).submit();
356: \$( ".LC_hwk_submit" ).prop( "disabled", true);
357: \$( ".LC_textline" ).prop( "readonly", "readonly");
1.520 raeburn 358: event.preventDefault();
1.531 raeburn 359:
360: if (timeout > 0) {
361: setTimeout(function(){
362: \$( "#msg_"+buttonId ).css({"display": "none"});
363: if (( \$(this.form).id == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
364: if (buttonId != "all_submit") {
365: if (( "#"+buttonId+"_pressed" ).length) {
366: \$( "#"+buttonId+"_pressed" ).val( "" );
367: }
368: }
369: }
370: \$( ".LC_hwk_submit" ).prop( "disabled", false);
371: \$( ".LC_textline" ).prop( "readonly", false);
372: submithandled = 0;
373: keypresshandled = 0;
374: }, timeout);
375: }
1.520 raeburn 376: return true;
377: }
378: }
379: });
1.531 raeburn 380: }
1.520 raeburn 381: });
382:
1.483 raeburn 383: // ]]>
1.400 albertel 384: </script>
385: JS
386: }
387:
1.416 raeburn 388: sub setmode_javascript {
389: return <<"ENDSCRIPT";
390: <script type="text/javascript">
1.485 raeburn 391: // <![CDATA[
1.416 raeburn 392: function setmode(form,probmode) {
393: form.problemmode.value = probmode;
394: form.submit();
395: }
1.485 raeburn 396: // ]]>
1.416 raeburn 397: </script>
398: ENDSCRIPT
399: }
400:
1.48 albertel 401: sub page_start {
1.345 albertel 402: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
403: $extra_head)=@_;
1.159 albertel 404: my %found;
1.207 albertel 405: foreach my $taginside (@$tagstack) {
1.159 albertel 406: foreach my $taglookedfor ('html','body','form') {
407: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
408: }
409: }
410:
1.343 albertel 411: if ($target eq 'tex') {
412: return
413: &Apache::londefdef::start_html($target,$token,$tagstack,
414: $parstack,$parser,$safeeval);
415: }
416:
1.474 raeburn 417: $extra_head .= &homework_js().
418: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
419: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
420: my %textarea_args = (
421: dragmath => 'math',
422: );
423: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 424: }
1.478 raeburn 425: my $is_task = ($env{'request.uri'} =~ /\.task$/);
1.528 raeburn 426: my ($needs_upload,$partlist);
1.495 raeburn 427: my ($symb)= &Apache::lonnet::whichuser();
428: my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
1.478 raeburn 429: if ($is_task) {
1.495 raeburn 430: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
1.493 raeburn 431: } else {
432: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.uploadedfiletypes") ne '') {
1.495 raeburn 433: unless ($env{'request.state'} eq 'construct') {
434: my $navmap = Apache::lonnavmaps::navmap->new();
435: if (ref($navmap)) {
436: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 437: my $is_page;
438: if (ref($mapres)) {
439: $is_page = $mapres->is_page();
440: }
441: unless ($is_page) {
1.495 raeburn 442: $needs_upload = 1;
443: }
1.528 raeburn 444: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
445: my $res = $navmap->getBySymb($symb);
446: if (ref($res)) {
447: $partlist = $res->parts();
448: }
449: }
1.495 raeburn 450: }
451: }
1.493 raeburn 452: } else {
453: unless ($env{'request.state'} eq 'construct') {
454: my $navmap = Apache::lonnavmaps::navmap->new();
455: if (ref($navmap)) {
1.495 raeburn 456: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 457: my $is_page;
458: if (ref($mapres)) {
459: $is_page = $mapres->is_page();
460: }
1.528 raeburn 461: if ($is_page) {
462: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
463: my $res = $navmap->getBySymb($symb);
464: if (ref($res)) {
465: $partlist = $res->parts();
466: }
467: }
468: } else {
1.495 raeburn 469: my $res = $navmap->getBySymb($symb);
470: if (ref($res)) {
1.528 raeburn 471: $partlist = $res->parts();
1.495 raeburn 472: if (ref($partlist) eq 'ARRAY') {
473: foreach my $part (@{$partlist}) {
474: my @types = $res->responseType($part);
475: my @ids = $res->responseIds($part);
476: for (my $i=0; $i < scalar(@ids); $i++) {
477: if ($types[$i] eq 'essay') {
478: my $partid = $part.'_'.$ids[$i];
479: if (&Apache::lonnet::EXT("resource.$partid.uploadedfiletypes") ne '') {
480: $needs_upload = 1;
481: last;
482: }
1.493 raeburn 483: }
484: }
485: }
1.495 raeburn 486: }
487: }
1.493 raeburn 488: }
489: }
490: }
491: }
1.495 raeburn 492: if ($needs_upload) {
493: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
494: }
1.478 raeburn 495: }
1.425 raeburn 496:
1.344 albertel 497: my %body_args;
498: if (defined($found{'html'})) {
499: $body_args{'skip_phases'}{'head'}=1;
500: } else {
1.343 albertel 501:
1.345 albertel 502: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 503:
1.379 albertel 504: $extra_head .= &Apache::londefdef::generate_css_links();
505:
1.384 albertel 506: if ($env{'request.state'} eq 'construct') {
1.343 albertel 507: $extra_head.=&Apache::edit::js_change_detection().
508: "<script type=\"text/javascript\">\n".
509: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
510: &Apache::loncommon::browser_and_searcher_javascript().
511: "\n</script>\n";
1.525 raeburn 512: if ($target eq 'edit') {
513: $extra_head .= &Apache::edit::js_update_linknum();
514: }
1.343 albertel 515: }
1.159 albertel 516: }
1.343 albertel 517:
1.446 bisitz 518: my $pageheader = '';
1.344 albertel 519: if (defined($found{'body'})) {
520: $body_args{'skip_phases'}{'body'}=1;
521: } elsif (!defined($found{'body'})
522: && $env{'request.state'} eq 'construct') {
1.343 albertel 523: if ($target eq 'web' || $target eq 'edit') {
1.513 raeburn 524: # Breadcrumbs for Authoring Space
1.450 bisitz 525: &Apache::lonhtmlcommon::clear_breadcrumbs();
526: &Apache::lonhtmlcommon::add_breadcrumb({
1.513 raeburn 527: 'text' => 'Authoring Space',
1.497 raeburn 528: 'href' => &Apache::loncommon::authorspace($env{'request.uri'}),
1.450 bisitz 529: });
1.460 droeschl 530: # breadcrumbs (and tools) will be created
531: # in start_page->bodytag->innerregister
532:
1.450 bisitz 533: # FIXME Where are we?
534: # &Apache::lonhtmlcommon::add_breadcrumb({
535: # 'text' => 'Problem Editing', # 'Problem Testing'
536: # 'href' => '',
537: # });
1.460 droeschl 538: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 539: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 540: }
1.272 albertel 541: } elsif (!defined($found{'body'})) {
1.343 albertel 542: my %add_entries;
1.159 albertel 543: my $background=&Apache::lonxml::get_param('background',$parstack,
544: $safeeval);
1.343 albertel 545: if ($background ne '' ) {
546: $add_entries{'background'} = $background;
547: }
1.344 albertel 548:
1.290 albertel 549: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
550: $safeeval);
1.446 bisitz 551: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 552:
1.446 bisitz 553: $body_args{'bgcolor'} = $bgcolor;
554: # $body_args{'no_title'} = 1;
555: $body_args{'force_register'} = 1;
556: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 557: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 558: $body_args{'only_body'} = 1;
1.518 raeburn 559: } elsif ($target eq 'web') {
560: $body_args{'print_suppress'} = 1;
1.446 bisitz 561: }
1.344 albertel 562: }
1.365 albertel 563: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 564: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
565: \%body_args);
1.446 bisitz 566: $page_start .= $pageheader;
1.462 raeburn 567: if (!defined($found{'body'})
568: && $env{'request.state'} ne 'construct'
569: && ($target eq 'web' || $target eq 'webgrade')) {
570:
571: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
572: if ($symb eq '' && !$publicuser) {
573: $page_start .= '<p class="LC_info">'
574: .&mt('Browsing resource, all submissions are temporary.')
575: .'</p>';
1.457 bisitz 576: }
1.344 albertel 577: }
578:
1.409 albertel 579: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 580: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 581: }
582: my $form_tag_start;
583: if (!defined($found{'form'})) {
1.337 albertel 584: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 585: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 586: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 587: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 588: $form_tag_start.=$uri.'" ';
589: if ($target eq 'edit') {
590: $form_tag_start.=&Apache::edit::form_change_detection();
591: }
1.493 raeburn 592: my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
593: my ($path,$multiresp) =
594: &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
1.495 raeburn 595: if (($is_task) || ($needs_upload)) {
596: $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
1.478 raeburn 597: }
1.368 albertel 598: $form_tag_start.='>'."\n";
1.355 albertel 599:
600: if ($symb =~ /\S/) {
601: $symb=
602: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
603: $form_tag_start.=
1.368 albertel 604: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 605: }
1.159 albertel 606: }
1.528 raeburn 607: return ($page_start,$form_tag_start,$partlist);
1.105 albertel 608: }
609:
1.141 matthew 610: #use Time::HiRes();
1.105 albertel 611: sub get_resource_name {
1.159 albertel 612: my ($parstack,$safeeval)=@_;
1.388 foxr 613: my $name;
1.204 albertel 614: if (defined($Apache::lonhomework::name)) {
1.388 foxr 615: $name = $Apache::lonhomework::name;
616: } else {
617: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 618: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 619: if ($name eq '') {
620: $name=&Apache::lonnet::EXT('resource.title');
621: if ($name eq 'con_lost') { $name = ''; }
622: }
623: if ($name!~/\S+/) {
624: $name=$env{'request.uri'};
625: $name=~s-.*/([^/]+)$-$1-;
626: }
627: # The name has had html tags escaped:
628:
629: $name=~s/</</gs;
630: $name=~s/>/>/gs;
631:
632: $Apache::lonhomework::name=$name;
1.204 albertel 633: }
1.159 albertel 634: return $name;
1.105 albertel 635: }
636:
637: sub setup_rndseed {
1.528 raeburn 638: my ($safeeval,$target,$probpartlist)=@_;
1.367 albertel 639: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 640: my ($questiontype,$set_safespace,$rndseed);
641: if ($target eq 'analyze') {
642: $questiontype = $env{'form.grade_questiontype'};
643: }
644: unless (defined($questiontype)) {
645: $questiontype = $Apache::lonhomework::type;
646: }
1.333 albertel 647: if ($env{'request.state'} eq "construct"
648: || $symb eq ''
649: || $Apache::lonhomework::type eq 'practice'
650: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 651: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 652: ['rndseed']);
1.284 albertel 653: $rndseed=$env{'form.rndseed'};
1.159 albertel 654: if (!$rndseed) {
1.162 albertel 655: $rndseed=$Apache::lonhomework::history{'rndseed'};
656: if (!$rndseed) {
657: $rndseed=time;
658: }
1.284 albertel 659: $env{'form.rndseed'}=$rndseed;
1.162 albertel 660: }
1.479 raeburn 661: if (($env{'request.state'} eq "construct") &&
662: ($Apache::lonhomework::type eq 'randomizetry')) {
663: my $tries = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
664: if ($tries) {
665: $rndseed += $tries;
666: }
1.480 raeburn 667: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 668: }
1.374 albertel 669: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
670: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 671: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 672: srand(time);
673: $rndseed=int(rand(2100000000));
1.284 albertel 674: $env{'form.rndseed'}=$rndseed;
675: delete($env{'form.resetdata'});
676: delete($env{'form.newrandomization'});
1.159 albertel 677: }
1.488 www 678: $rndseed=~s/\,/\:/g;
679: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 680: if (defined($rndseed)) {
681: my ($c1,$c2)=split(/\:/,$rndseed);
682: unless ($c2) { $c2=0; }
683: unless (($c1==int($c1)) && ($c2==int($c2))) {
684: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
685: }
1.187 albertel 686: }
1.247 albertel 687: if ($Apache::lonhomework::history{'resource.CODE'}) {
688: $rndseed=&Apache::lonnet::rndseed();
689: }
1.479 raeburn 690: $set_safespace = 1;
691: } elsif ($questiontype eq 'randomizetry') {
692: if ($target eq 'analyze') {
693: if (defined($env{'form.grade_rndseed'})) {
694: $rndseed = $env{'form.grade_rndseed'};
695: }
696: }
697: unless (($target eq 'analyze') && (defined($rndseed))) {
698: $rndseed=&Apache::lonnet::rndseed();
1.528 raeburn 699: my $partfortries = $Apache::inputtags::part;
700: if (ref($probpartlist) eq 'ARRAY') {
701: if ((@{$probpartlist} == 1) && ($probpartlist->[0] ne $Apache::inputtags::part)) {
702: $partfortries = $probpartlist->[0];
703: }
704: }
705: my $curr_try = $Apache::lonhomework::history{"resource.$partfortries.tries"};
1.479 raeburn 706: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
707: $curr_try ++;
708: }
709: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
710: $rndseed = $1;
711: }
712: if ($curr_try) {
1.528 raeburn 713: my $reqtries = &Apache::lonnet::EXT("resource.$partfortries.randomizeontries");
1.479 raeburn 714: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
715: my $inc = int(($curr_try-1)/$reqtries);
716: $rndseed += $inc;
717: } else {
718: $rndseed += $curr_try;
719: }
720: }
721: }
722: $set_safespace = 1;
1.528 raeburn 723: if ($target eq 'grade') {
724: $Apache::lonhomework::rawrndseed = $rndseed;
725: }
1.479 raeburn 726: }
727: if ($set_safespace) {
728: if ($safeeval) {
729: &Apache::lonxml::debug("Setting rndseed to $rndseed");
730: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
731: }
732: }
733: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
734: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 735: }
736: return $rndseed;
1.105 albertel 737: }
738:
1.268 albertel 739: sub remember_problem_state {
740: return '
1.284 albertel 741: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
742: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
743: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 744: }
745:
1.487 www 746: sub problem_edit_action_button {
747: my ($name,$action,$accesskey,$text,$flag)=@_;
748: my $actionscript="setmode(this.form,'$action')";
749: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
750: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
751: }
752:
1.423 www 753: sub problem_edit_buttons {
1.487 www 754: my ($mode)=@_;
1.535 droeschl 755: # Buttons that save
756: my $result = '<div style="float:right">';
757: if ($mode eq 'editxml') {
758: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
759: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
760: } else {
761: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
762: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
763: }
764: $result.="\n</div>\n";
1.487 www 765: # Buttons that do not save
1.535 droeschl 766: $result .= '<div>'.
1.487 www 767: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
768: if ($mode eq 'editxml') {
769: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
770: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
771: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
772: } else {
773: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
774: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
775: }
776: $result.="\n</div>";
777: return $result;
1.423 www 778: }
779:
780: sub problem_edit_header {
1.527 golterma 781: my ($mode)=@_;
782: my $return = '<input type="hidden" name="submitted" value="edit" />'.
1.487 www 783: &remember_problem_state('edit').'
1.527 golterma 784: <div class="LC_edit_problem_header">
785: <div class="LC_edit_problem_header_title">
786: '.&mt('Problem Editing').$mode.&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
787: </div><div class="LC_edit_actionbar" id="actionbar">'.
788: '<input type="hidden" name="problemmode" value="saveedit" />'.
789: &problem_edit_buttons();
790:
1.535 droeschl 791: $return .= '</div></div>' . &Apache::lonxml::message_location();
1.527 golterma 792: $return .= '<link rel="stylesheet" href="/adm/codemirror/codemirror-combined.css" />
793: <script type="text/javascript" src="/adm/codemirror/codemirror-compressed-colorful.js"></script>';
794:
795: $return .= '<script type="text/javascript" src="/adm/jQuery/addons/jquery-scrolltofixed.js"></script>
796: <script type="text/javascript">
797: // unless internet explorer
798: if (!(window.navigator.appName == "Microsoft Internet Explorer" && (document.documentMode || document.compatMode))){
799: $(document).ready(
800: function() {
801: $(\'.LC_edit_actionbar\').scrollToFixed(
802: {
803: fixed: function(){
1.535 droeschl 804: //$(this).find(\'.LC_edit_actionbar\').css(\'height\', \'31px\');
805: $(this).find(\'.LC_edit_actionbar\');
1.527 golterma 806: }
807: }
808: );
809: }
810: );
811: }
812: </script>
813: <table id="LC_edit_problem_colorful" border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
814: return $return;
1.105 albertel 815: }
816:
817: sub problem_edit_footer {
1.527 golterma 818: my $resource = $env{'request.ambiguous'};
1.412 albertel 819: return '</td></tr></table><br />
820: <div class="LC_edit_problem_footer">
1.453 bisitz 821: <hr />'.
1.423 www 822: &problem_edit_buttons().'
1.459 bisitz 823: <hr style="clear:both;" />
1.527 golterma 824: <script type="text/javascript">
825: restoreState("'.$resource.'");
826: restoreScrollPosition("'.$resource.'");
827: </script>
1.412 albertel 828: </div>
829: '.
1.342 albertel 830: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 831: }
832:
1.235 albertel 833: sub option {
834: my ($value,$name) = @_;
835: my $result ="<option value='".$value."' ";
1.284 albertel 836: if ($env{'form.'.$name} eq $value) {
1.235 albertel 837: $result.=" selected='on' ";
838: }
839: $result.='>';
840: return $result;
841: }
842:
1.105 albertel 843: sub problem_web_to_edit_header {
1.159 albertel 844: my ($rndseed)=@_;
1.406 albertel 845: my $result .= '<div class="LC_edit_problem_header">';
846:
847: if (!$Apache::lonhomework::parsing_a_task) {
848: $result .=
849: '<div class="LC_edit_problem_header_title">'.
850: &mt('Problem Testing').
851: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
852: '</div>';
853: } else {
854: $result .=
855: '<div class="LC_edit_problem_header_title">'.
856: &mt('Task Testing').
857: '</div>';
858: }
859:
1.315 albertel 860: my $show_all_foils_text =
861: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 862: &mt('Show All Instances')
863: : &mt('Show All Foils');
1.315 albertel 864:
1.452 bisitz 865: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
866: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 867: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 868: $show_all.= ' /> '.$show_all_foils_text
869: .'</label></span>';
1.406 albertel 870:
871:
1.384 albertel 872:
1.406 albertel 873: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 874: if (!$Apache::lonhomework::parsing_a_task) {
875: $result.="
1.406 albertel 876: <div class='LC_edit_problem_header_row1'>
877: <span class=\"LC_nobreak\">
1.405 albertel 878: ".&mt("Problem Status:")."
1.235 albertel 879: <select name='problemstate'>
1.270 albertel 880: <option value=''></option>
1.235 albertel 881: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
882: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
883: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
884: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
885: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
886: </select>
1.406 albertel 887: </span>
888: <span class=\"LC_nobreak\">
1.405 albertel 889: ".&mt("Problem Type:")."
1.235 albertel 890: <select name='problemtype'>
1.270 albertel 891: <option value=''></option>
1.509 bisitz 892: ".&option('exam' ,'problemtype').&mt("Bubblesheet Exam Problem")."</option>
1.428 raeburn 893: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 894: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 895: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
896: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
897: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 898: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 899: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 900: </select>
1.406 albertel 901: </span>
902: $show_all
903: </div>
904: <div class='LC_edit_problem_header_row2'>
905: <span class=\"LC_nobreak\">
1.405 albertel 906: ".&mt("Feedback Mode:")."
1.235 albertel 907: <select name='problemstatus'>
908: <option value=''></option>
1.242 albertel 909: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.517 bisitz 910: ".&option('no', 'problemstatus').&mt("Don't Show Incorrect/Correct Feedback")."</option>
1.405 albertel 911: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 912: </select>
1.406 albertel 913: </span>
914: ";
915:
1.376 albertel 916: } elsif ($Apache::lonhomework::parsing_a_task) {
917: $result.="
1.406 albertel 918: <div class='LC_edit_problem_header_row1'>
919: <span class=\"LC_nobreak\">
1.405 albertel 920: ".&mt("Problem Status:")."
1.376 albertel 921: <select name='problemstate'>
922: <option value=''></option>
923: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
924: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
925: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
926: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
927: </select>
1.406 albertel 928: </span>
929: $show_all
930: ";
931: }
932: $result.='
933: <span class="LC_nobreak">
934: '.&mt('Apply style file: ').'
935: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
936: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
937: </span>
1.422 www 938: </div>
939: <div class="LC_edit_problem_header_row1">'.
940: &Apache::lonxml::renderingoptions().'
1.406 albertel 941: </div>
942: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
943: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
944: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
945: </div>
1.453 bisitz 946: <hr />
1.406 albertel 947: <div class="LC_edit_problem_header_randomize_row">
948: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
949: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 950: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 951: $rndseed.'"
952: onchange="javascript:document.lonhomework.changerandseed.click()" />';
953:
954: if (!$Apache::lonhomework::parsing_a_task) {
955: my $numtoanalyze=$env{'form.numtoanalyze'};
956: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 957: $result .= '<span class="LC_nobreak">'.
958: &mt('[_1] for [_2] versions.',
1.416 raeburn 959: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 960: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
961: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 962: $numtoanalyze.'" size="5" />').
963: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
964: '</span>';
965:
1.313 albertel 966: }
1.406 albertel 967:
968: $result.='
969: </div>
1.453 bisitz 970: <hr />
1.447 bisitz 971: <div>';
1.416 raeburn 972: $result.='<input type="hidden" name="problemmode" value="view" />';
973: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
974: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
975: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
976: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 977: $result.='
978: </div>
1.453 bisitz 979: <hr />
1.409 albertel 980: '.&Apache::lonxml::message_location().'
1.406 albertel 981: </div>';
1.159 albertel 982: return $result;
1.48 albertel 983: }
984:
1.65 albertel 985: sub initialize_storage {
1.357 albertel 986: my ($given_symb) = @_;
1.353 albertel 987: undef(%Apache::lonhomework::results);
988: undef(%Apache::lonhomework::history);
1.357 albertel 989: my ($symb,$courseid,$domain,$name) =
1.367 albertel 990: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 991:
992: # anonymous users (CODEd exams) have no data
993: if ($name eq 'anonymous'
994: && !defined($domain)) {
995: return;
996: }
997:
1.333 albertel 998: if ($env{'request.state'} eq 'construct'
999: || $symb eq ''
1000: || $Apache::lonhomework::type eq 'practice') {
1001:
1002: my $namespace = $symb || $env{'request.uri'};
1003: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 1004: ($env{'form.resetdata'} eq &mt('New Problem Variation')
1005: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 1006: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1007: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
1008: &Apache::lonxml::debug("Attempt reset");
1009: }
1.159 albertel 1010: %Apache::lonhomework::history=
1.333 albertel 1011: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.526 raeburn 1012: my ($temp)=keys(%Apache::lonhomework::history) ;
1.159 albertel 1013: &Apache::lonxml::debug("Return message of $temp");
1014: } else {
1015: %Apache::lonhomework::history=
1016: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1017: }
1.353 albertel 1018:
1.159 albertel 1019: #ignore error conditions
1.526 raeburn 1020: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1021: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 1022: }
1023:
1.435 jms 1024: =pod
1025:
1026: =item finalize_storage()
1027:
1.524 raeburn 1028: Stores away the result hash to a student's environment;
1.523 raeburn 1029: checks form.grade_ for specific values, otherwise stores
1030: to the running user's environment.
1.524 raeburn 1031:
1032: &check_correctness_changes() is called in two circumstances
1033: in which the results hash is to be stored permanently, for
1034: grading triggered by a student's submission, where feedback on
1035: correctness is to be provided to the student.
1036:
1037: 1. Immediately prior to storing the results hash
1038:
1039: To handle the case where a student's submission (and award) were
1040: stored after history was retrieved in &initialize_storage(), e.g.,
1041: if a student submitted answers in quick succession (e.g., from
1042: multiple tabs). &Apache::inputtags::hidealldata() is called for
1043: any parts with out-of-order storage (i.e., correct then incorrect,
1044: where awarded >= 1 when correct).
1045:
1046: 2. Immediately after storing the results hash
1047:
1048: To handle the case where lond on the student's homeserver returns
1049: delay:N -- where N is the number of transactions between the last
1050: retrieved in &initialize_storage() and the last stored immediately
1051: before permanent storage of the current transaction via
1052: lond::store_handler(). &Apache::grades::makehidden() is called
1053: for any parts with out-of-order storage (i.e., correct then incorrect,
1054: where awarded >= 1 when correct).
1055:
1056: Will call &store_aggregates() to increment totals for attempts,
1057: students, and corrects, if running user has student role.
1058:
1.435 jms 1059: =cut
1060:
1061:
1.65 albertel 1062: sub finalize_storage {
1.357 albertel 1063: my ($given_symb) = @_;
1.159 albertel 1064: my $result;
1.289 albertel 1065: if (%Apache::lonhomework::results) {
1.323 albertel 1066: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
1067: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 1068: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1069: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 1070: if ($env{'request.state'} eq 'construct'
1071: || $symb eq ''
1072: || $Apache::lonhomework::type eq 'practice') {
1073: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 1074: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 1075: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 1076: $namespace,'',$domain,$name);
1.159 albertel 1077: &Apache::lonxml::debug('Construct Store return message:'.$result);
1078: } else {
1.524 raeburn 1079: my ($laststore,$checkedparts,@parts,%postcorrect);
1080: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1081: (!$Apache::lonhomework::scantronmode) && (!defined($env{'form.grade_symb'})) &&
1082: (!defined($env{'form.grade_courseid'}))) {
1083: if ($Apache::lonhomework::history{'version'}) {
1084: $laststore = $Apache::lonhomework::history{'version'}.'='.
1085: $Apache::lonhomework::history{'timestamp'};
1086: } else {
1087: $laststore = '0=0';
1088: }
1089: my %record = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1090: if ($record{'version'}) {
1091: my ($newversion,$oldversion,$oldtimestamp);
1092: if ($Apache::lonhomework::history{'version'}) {
1093: $oldversion = $Apache::lonhomework::history{'version'};
1094: $oldtimestamp = $Apache::lonhomework::history{'timestamp'};
1095: } else {
1096: $oldversion = 0;
1097: $oldtimestamp = 0;
1098: }
1099: if ($record{'version'} > $oldversion) {
1100: if ($record{'timestamp'} >= $oldtimestamp) {
1101: $laststore = $record{'version'}.'='.$record{'timestamp'};
1102: $newversion = $record{'version'} + 1;
1103: $checkedparts = 1;
1104: foreach my $key (keys(%Apache::lonhomework::results)) {
1105: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1106: my $part = $1;
1107: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1108: push(@parts,$part);
1109: }
1110: }
1111: }
1112: if (@parts) {
1113: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1114: \%record,\@parts,$newversion,
1115: $oldversion);
1116: if (@parts_to_hide) {
1117: foreach my $part (@parts_to_hide) {
1118: $postcorrect{$part} = 1;
1119: &Apache::inputtags::hidealldata($part);
1120: }
1121: }
1122: }
1123: }
1124: }
1125: }
1126: }
1.159 albertel 1127: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
1.524 raeburn 1128: $symb,$courseid,$domain,$name,$laststore);
1129: if ($result =~ /^delay\:(\d+)$/) {
1130: my $numtrans = $1;
1131: my ($oldversion) = split(/=/,$laststore);
1132: if ($numtrans) {
1133: my $newversion = $oldversion + 1 + $numtrans;
1134: my @possparts;
1135: if ($checkedparts) {
1136: foreach my $part (@parts) {
1137: unless ($postcorrect{$part}) {
1138: push(@possparts,$part);
1139: }
1140: }
1141: } else {
1142: foreach my $key (keys(%Apache::lonhomework::results)) {
1143: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1144: my $part = $1;
1145: unless ($postcorrect{$part}) {
1146: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1147: push(@possparts,$part);
1148: }
1149: }
1150: }
1151: }
1152: }
1153: if (@possparts) {
1154: my %newrecord = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1155: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1156: \%newrecord,\@possparts,$newversion,
1157: $oldversion);
1158: if (@parts_to_hide) {
1159: my $partslist = join(',',@parts_to_hide);
1160: &Apache::grades::makehidden($newversion,$partslist,\%newrecord,$symb,$domain,$name,1);
1161: }
1162: }
1163: }
1164: }
1.159 albertel 1165: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 1166: &store_aggregates($symb,$courseid);
1.159 albertel 1167: }
1.323 albertel 1168: } else {
1169: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 1170: }
1.159 albertel 1171: return $result;
1.65 albertel 1172: }
1173:
1.435 jms 1174: =pod
1175:
1.524 raeburn 1176: =item check_correctness_changes()
1177:
1178: For all parts for which current results contain a solved status
1179: of "incorrect_attempted", check if there was a transaction in which
1180: solved was set to "correct_by_student" in the time since the last
1181: transaction (retrieved when &initialize_storage() was called i.e.,
1182: when &start_problem() was called), unless:
1183: (a) questiontype parameter is set to survey or anonymous survey (+/- credit)
1184: (b) problemstatus is set to no or no_feedback_ever
1185: If such a transaction exists, and did not occur after "reset status"
1186: by a user with grading privileges, then the current transaction is an
1187: example of an out-of-order transaction (i.e., incorrect occurring after
1188: correct). Accordingly, the current transaction should be hidden.
1189:
1190: =cut
1191:
1192:
1193: sub check_correctness_changes {
1194: my ($symb,$courseid,$domain,$name,$record,$parts,$newversion,$oldversion) = @_;
1195: my @parts_to_hide;
1196: unless ((ref($record) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
1197: return @parts_to_hide;
1198: }
1199: if (@{$parts}) {
1200: my $usec;
1201: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1202: ($env{'request.course.id'} eq $courseid)) {
1203: $usec = $env{'request.course.sec'};
1204: } else {
1205: $usec = &Apache::lonnet::getsection($domain,$name,$courseid);
1206: }
1207: foreach my $id (@{$parts}) {
1208: next if (($Apache::lonhomework::results{'resource.'.$id.'.type'} =~ /survey/) ||
1209: (&Apache::lonnet::EXT("resource.$id.problemstatus",$symb,
1210: $domain,$name,$usec,undef,$courseid) =~ /^no/));
1211: my $reset;
1212: for (my $i=$newversion-1; $i>=$oldversion; $i--) {
1213: if (($record->{$i.':resource.'.$id.'.regrader'}) &&
1214: ($record->{$i.':resource.'.$id.'.tries'} eq '') &&
1215: ($record->{$i.':resource.'.$id.'.award'} eq '')) {
1216: $reset = 1;
1217: } elsif (($record->{$i.":resource.$id.solved"} eq 'correct_by_student') &&
1218: ($record->{$i.":resource.$id.awarded"} >= 1)) {
1219: unless ($reset) {
1220: push(@parts_to_hide,$id);
1221: last;
1222: }
1223: }
1224: }
1225: }
1226: }
1227: return @parts_to_hide;
1228: }
1229:
1230: =pod
1231:
1.435 jms 1232: item store_aggregates()
1233:
1234: Sends hash of values to be incremented in nohist_resourcetracker.db
1235: for the course. Increments total number of attempts, unique students
1236: and corrects for each part for an instance of a problem, as appropriate.
1237:
1238: =cut
1239:
1.285 raeburn 1240: sub store_aggregates {
1241: my ($symb,$courseid) = @_;
1.479 raeburn 1242: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 1243: my @parts;
1.288 albertel 1244: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
1245: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 1246: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 1247: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 1248: push(@parts, $1);
1.285 raeburn 1249: }
1250: }
1.286 albertel 1251: foreach my $part (@parts) {
1.470 raeburn 1252: if ($env{'request.role'} =~/^st/) {
1253: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
1254: eq 'APPROX_ANS' ||
1255: $Apache::lonhomework::results{'resource.'.$part.'.award'}
1256: eq 'EXACT_ANS') {
1257: $aggregate{$symb."\0".$part."\0correct"} = 1;
1258: }
1259: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1260: $aggregate{$symb."\0".$part."\0users"} = 1;
1261: } else {
1262: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1263: if ($last_reset) {
1264: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1265: $aggregate{$symb."\0".$part."\0users"} = 1;
1266: }
1267: }
1268: }
1269: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 1270: }
1.470 raeburn 1271: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 1272: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
1273: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
1274: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
1275: $randtrycounter{$symb."\0".$part} = 1;
1276: } else {
1277: $anoncounter{$symb."\0".$part} = 1;
1278: }
1.470 raeburn 1279: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
1280: if ($needsrelease) {
1281: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
1282: if ($curr_required eq '') {
1.471 raeburn 1283: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1284: } else {
1285: my ($currmajor,$currminor) = split(/\./,$curr_required);
1286: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
1287: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 1288: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1289: }
1.292 raeburn 1290: }
1291: }
1.285 raeburn 1292: }
1293: }
1.526 raeburn 1294: if (keys(%aggregate) > 0) {
1.289 albertel 1295: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 1296: $cdomain,$cname);
1297: }
1.472 raeburn 1298: if (keys(%anoncounter) > 0) {
1.481 raeburn 1299: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
1300: $cdomain,$cname);
1.472 raeburn 1301: }
1.479 raeburn 1302: if (keys(%randtrycounter) > 0) {
1.481 raeburn 1303: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
1304: $cdomain,$cname);
1.479 raeburn 1305: }
1.292 raeburn 1306: }
1.289 albertel 1307:
1.65 albertel 1308: sub checkout_msg {
1.211 albertel 1309: my %lt=&Apache::lonlocal::texthash(
1310: 'resource'=>'The resource needs to be checked out',
1311: '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.',
1312: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
1.509 bisitz 1313: 'checkout'=>'Check out Bubblesheet Exam for Viewing',
1314: 'checkout?'=>'Check out Bubblesheet Exam?');
1.352 albertel 1315: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 1316: return (<<ENDCHECKOUT);
1.211 albertel 1317: <h2>$lt{'resource'}</h2>
1318: <p>$lt{'id_expln'}</p>
1.449 bisitz 1319: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 1320: <form name="checkout" method="post" action="$uri">
1.91 albertel 1321: <input type="hidden" name="doescheckout" value="yes" />
1.514 bisitz 1322: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onclick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 1323: </form>
1324: ENDCHECKOUT
1325: }
1326:
1.252 albertel 1327: sub firstaccess_msg {
1.253 albertel 1328: my ($time,$symb)=@_;
1.414 albertel 1329: my $result;
1330: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1331: if ($interval[1] eq 'map') {
1332: my ($map)=&Apache::lonnet::decode_symb($symb);
1333: my $foldertitle=&Apache::lonnet::gettitle($map);
1334:
1335: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 1336: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
1337: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1338: ,$foldertitle,$time)."</p>";
1.414 albertel 1339: } elsif ($interval[1] eq 'course') {
1340: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 1341: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 1342: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 1343: ,$course,$time)."</p>";
1.414 albertel 1344: } else {
1345: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1346: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1347: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1348: ,$title,$time)."</p>";
1.414 albertel 1349: }
1.352 albertel 1350: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1351: my $buttontext = &mt('Show Resource');
1352: my $timertext = &mt('Start Timer?');
1.414 albertel 1353: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1354: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1355: <input type="hidden" name="markaccess" value="yes" />
1.514 bisitz 1356: <input type="button" name="accessbutton" value="$buttontext" onclick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1357: </form>
1358: ENDCHECKOUT
1.414 albertel 1359: return $result;
1.252 albertel 1360: }
1361:
1.204 albertel 1362: sub init_problem_globals {
1363: my ($type)=@_;
1364: #initialize globals
1.308 foxr 1365: # For problems, we start out in part 0 (outside a <part> tag).
1366: # and part 0 is used to describe the main body of the <problem>
1367: #
1.204 albertel 1368: if ($type eq 'problem') {
1369: $Apache::inputtags::part='0';
1370: @Apache::inputtags::partlist=('0');
1.405 albertel 1371: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1372: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1373:
1.266 albertel 1374: } elsif ($type eq 'library') {
1.204 albertel 1375: $Apache::inputtags::part='';
1376: @Apache::inputtags::partlist=();
1.405 albertel 1377: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1378: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1379:
1.304 albertel 1380: } elsif ($type eq 'Task') {
1381: $Apache::inputtags::part='0';
1382: @Apache::inputtags::partlist=('0');
1.405 albertel 1383: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1384: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1385: }
1.477 www 1386: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1387: @Apache::inputtags::responselist = ();
1388: @Apache::inputtags::importlist = ();
1389: @Apache::inputtags::previous=();
1390: @Apache::inputtags::previous_version=();
1.536 ! raeburn 1391: $Apache::inputtags::leniency='';
1.204 albertel 1392: $Apache::structuretags::printanswer='No';
1393: @Apache::structuretags::whileconds=();
1394: @Apache::structuretags::whilebody=();
1395: @Apache::structuretags::whileline=();
1396: $Apache::lonhomework::scantronmode=0;
1397: undef($Apache::lonhomework::name);
1.358 albertel 1398: undef($Apache::lonhomework::default_type);
1399: undef($Apache::lonhomework::type);
1.204 albertel 1400: }
1401:
1402: sub reset_problem_globals {
1403: my ($type)=@_;
1404: undef(%Apache::lonhomework::history);
1405: undef(%Apache::lonhomework::results);
1406: undef($Apache::inputtags::part);
1.536 ! raeburn 1407: undef($Apache::inputtags::leniency);
1.498 raeburn 1408: if ($type eq 'Task') {
1409: undef($Apache::inputtags::slot_name);
1.528 raeburn 1410: } elsif ($type eq 'problem') {
1411: undef($Apache::lonhomework::rawrndseed);
1.498 raeburn 1412: }
1.208 albertel 1413: #don't undef this, lonhomework.pm takes care of this, we use this to
1414: #detect if we try to do 2 problems in one file
1415: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1416: undef($Apache::lonhomework::name);
1.358 albertel 1417: undef($Apache::lonhomework::default_type);
1418: undef($Apache::lonhomework::type);
1419: undef($Apache::lonhomework::scantronmode);
1420: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1421: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1422: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1423: }
1424:
1.241 albertel 1425: sub set_problem_state {
1.240 albertel 1426: my ($part)=@_;
1.284 albertel 1427: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1428: $Apache::lonhomework::history{"resource.$part.solved"}=
1429: 'correct_by_student';
1430: }
1431: }
1432:
1.241 albertel 1433: sub get_problem_status {
1434: my ($part)=@_;
1.267 albertel 1435: my $problem_status;
1.284 albertel 1436: if ($env{'request.state'} eq 'construct' &&
1437: defined($env{'form.problemstatus'})) {
1438: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1439: } else {
1440: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1441: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1442: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1443: }
1444: return $problem_status;
1445: }
1446:
1.9 albertel 1447: sub start_problem {
1.326 albertel 1448: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1449:
1.311 foxr 1450: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1451: if (!$Apache::lonxml::metamode) {
1452: &Apache::lonxml::startredirection();
1453: }
1.311 foxr 1454:
1.308 foxr 1455: # Problems don't nest and we don't allow more than one <problem> in
1456: # a .problem file.
1457: #
1.184 albertel 1458: if ( $Apache::inputtags::part ne '' ||
1459: $Apache::lonhomework::parsing_a_problem) {
1460: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1461: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1462: return '';
1463: }
1.184 albertel 1464:
1465: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1466: &init_problem_globals('problem');
1.166 albertel 1467:
1.284 albertel 1468: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1469: $Apache::lonhomework::scantronmode=1;
1470: }
1.161 albertel 1471:
1.159 albertel 1472: if ($target ne 'analyze') {
1.415 raeburn 1473: my $type = &Apache::lonnet::EXT('resource.0.type');
1474: $Apache::lonhomework::type=$type;
1.284 albertel 1475: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1476: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1477: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1478: }
1.332 albertel 1479: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1480: }
1.164 albertel 1481: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1482: my $uri=$env{'request.uri'};
1.159 albertel 1483: if ($uri=~/\.(\w+)$/) {
1484: $Apache::lonhomework::type=$1;
1485: &Apache::lonxml::debug("Using type of $1");
1486: } else {
1487: $Apache::lonhomework::type='problem';
1488: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1489: }
1.87 albertel 1490: }
1.301 albertel 1491: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1492:
1.363 albertel 1493: &initialize_storage();
1.389 albertel 1494: if ($target ne 'analyze'
1495: && $env{'request.state'} eq 'construct') {
1496: &set_problem_state('0');
1497: }
1498:
1.366 albertel 1499: if ($target eq 'web') {
1500: &Apache::lonxml::debug(" grading history ");
1501: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1502: }
1.363 albertel 1503:
1.159 albertel 1504: #added vars to the scripting enviroment
1.213 albertel 1505: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1506: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1507: &Apache::run::run($expression,$safeeval);
1.159 albertel 1508: my $status;
1509: my $accessmsg;
1.508 raeburn 1510: my $resource_due;
1.159 albertel 1511:
1.343 albertel 1512: my $name= &get_resource_name($parstack,$safeeval);
1.528 raeburn 1513: my ($result,$form_tag_start,$slot_name,$slot,$probpartlist);
1.506 raeburn 1514:
1515: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1516: $target eq 'tex') {
1517: if ($env{'form.markaccess'}) {
1518: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1.519 raeburn 1519: &Apache::lonnet::set_first_access($interval[1],$interval[0]);
1.506 raeburn 1520: }
1521:
1522: ($status,$accessmsg,$slot_name,$slot) =
1523: &Apache::lonhomework::check_slot_access('0','problem');
1524: push (@Apache::inputtags::status,$status);
1525: }
1526:
1.354 albertel 1527: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1528: || $target eq 'edit') {
1.528 raeburn 1529: ($result,$form_tag_start,$probpartlist) =
1.350 albertel 1530: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1531: $name);
1.528 raeburn 1532: } elsif (($target eq 'grade') && ($Apache::lonhomework::type eq 'randomizetry')) {
1533: my ($symb)= &Apache::lonnet::whichuser();
1534: my $navmap = Apache::lonnavmaps::navmap->new();
1535: if (ref($navmap)) {
1536: my $res = $navmap->getBySymb($symb);
1537: if (ref($res)) {
1538: $probpartlist = $res->parts();
1539: }
1540: }
1.350 albertel 1541: }
1542:
1.284 albertel 1543: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1544:
1.479 raeburn 1545: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1546: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1547: $target eq 'tex') {
1.479 raeburn 1548:
1.159 albertel 1549: #handle rand seed in construction space
1.528 raeburn 1550: my $rndseed=&setup_rndseed($safeeval,$target,$probpartlist);
1551: if (($target eq 'grade') && &Apache::response::submitted()) {
1552: if ($Apache::lonhomework::type eq 'randomizetry') {
1.529 raeburn 1553: $Apache::lonhomework::results{'resource.0.rndseed'}=$rndseed;
1.528 raeburn 1554: } else {
1555: my @parts;
1556: if (ref($probpartlist) eq 'ARRAY') {
1557: @parts = @{$probpartlist};
1558: }
1559: unless (@parts) {
1.529 raeburn 1560: $Apache::lonhomework::results{'resource.0.rndseed'}=$Apache::lonhomework::rawrndseed;
1.528 raeburn 1561: }
1562: }
1563: }
1.367 albertel 1564: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 1565:
1.333 albertel 1566: if ($env{'request.state'} ne "construct" &&
1567: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1568: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1569: $rndseed.'" />'.
1570: '<input type="submit" name="resetdata"
1571: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1572: if (exists($env{'form.username'})) {
1573: $form_tag_start.=
1.164 albertel 1574: '<input type="hidden" name="username"
1.284 albertel 1575: value="'.$env{'form.username'}.'" />';
1.334 albertel 1576: }
1.462 raeburn 1577: if ($env{'request.role.adv'}) {
1578: $form_tag_start.= ' <label class="LC_nobreak">'
1579: .'<input type="checkbox" name="showallfoils"';
1580: if (defined($env{'form.showallfoils'})) {
1581: $form_tag_start.=' checked="checked"';
1582: }
1583: $form_tag_start.= ' /> '
1584: .&mt('Show All Foils')
1585: .'</label>';
1586: }
1.417 www 1587: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1588: $form_tag_start.=&practice_problem_header();
1.417 www 1589: }
1.462 raeburn 1590: $form_tag_start.='<hr />';
1.479 raeburn 1591: } elsif (($env{'request.state'} ne "construct") &&
1592: ($Apache::lonhomework::type eq 'randomizetry') &&
1593: ($status eq 'CAN_ANSWER')) {
1594: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1595: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1596: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1597: }
1.324 albertel 1598:
1.159 albertel 1599: my $expression='$external::datestatus="'.$status.'";';
1600: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1601: &Apache::run::run($expression,$safeeval);
1602: &Apache::lonxml::debug("Got $status");
1.324 albertel 1603:
1.159 albertel 1604: if (( $status eq 'CLOSED' ) ||
1605: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1606: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1607: ( $status eq 'BANNED') ||
1.216 albertel 1608: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1609: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1610: ( $status eq 'NOTRESERVABLE') ||
1611: ( $status eq 'RESERVABLE') ||
1612: ( $status eq 'RESERVABLE_LATER') ||
1.216 albertel 1613: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1614: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1615: $style);
1.159 albertel 1616: if ( $target eq "web" ) {
1.343 albertel 1617: my $msg;
1.159 albertel 1618: if ($status eq 'UNAVAILABLE') {
1.504 golterma 1619: $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1.441 raeburn 1620: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.504 golterma 1621: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1.499 raeburn 1622: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1623: ($status eq 'NOTRESERVABLE')) {
1.504 golterma 1624: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1.253 albertel 1625: } elsif ($status ne 'NOT_YET_VIEWED') {
1.504 golterma 1626: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1.499 raeburn 1627: }
1.216 albertel 1628: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1629: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1630: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1631: $msg.=&checkout_msg();
1.252 albertel 1632: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1633: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1634: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1635: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.499 raeburn 1636: } elsif ($status eq 'RESERVABLE') {
1637: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1638: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1639: '<br />'.
1640: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1641: } elsif ($status eq 'RESERVABLE_LATER') {
1642: $msg.=&mt('Window to make a reservation will open [_1].',
1643: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1644: } elsif ($status eq 'NOTRESERVABLE') {
1645: $msg.=&mt('Not available to make a reservation.');
1.159 albertel 1646: }
1647: $result.=$msg.'<br />';
1648: } elsif ($target eq 'tex') {
1.332 albertel 1649: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1650: : '\begin{minipage}{\textwidth}';
1.443 foxr 1651: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1652: $startminipage.'\vskip 0 mm';
1.159 albertel 1653: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1654: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1655: } else {
1.211 albertel 1656: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1657: }
1658: }
1.324 albertel 1659: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1660: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1661: $style);
1.324 albertel 1662: if ($target eq 'web') {
1.375 albertel 1663: $result .=
1664: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1665: } elsif ($target eq 'grade') {
1666: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1667: 'problem');
1668: }
1.159 albertel 1669: } elsif ($target eq 'web') {
1.508 raeburn 1670: if ($status eq 'CAN_ANSWER') {
1671: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1672: if ($slot_name ne '') {
1673: my $checked_in =
1674: $Apache::lonhomework::history{'resource.0.checkedin'};
1675: if ($checked_in eq '') {
1676: # unproctored slot access, self checkin
1677: &Apache::bridgetask::check_in('problem',undef,undef,
1678: $slot_name);
1679: $checked_in =
1680: $Apache::lonhomework::results{"resource.0.checkedin"};
1681: }
1682: if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1683: if ($slot->{'starttime'} < time()) {
1684: if (!$resource_due) {
1685: $resource_due = $slot->{'endtime'};
1686: } elsif ($slot->{'endtime'} < $resource_due) {
1687: $resource_due = $slot->{'endtime'};
1688: }
1689: }
1690: }
1691: }
1692: if ($resource_due) {
1693: my $time_left = $resource_due - time();
1694: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1695: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1696: }
1697: }
1698: }
1.368 albertel 1699: $result.="\n $form_tag_start \t".
1.227 albertel 1700: '<input type="hidden" name="submitted" value="yes" />';
1701: # create a page header and exit
1.284 albertel 1702: if ($env{'request.state'} eq "construct") {
1703: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1704: if ($Apache::lonhomework::type eq 'practice') {
1705: $result.= '<input type="submit" name="resetdata" '.
1706: 'value="'.&mt('New Problem Variation').'" />'.
1707: &practice_problem_header().'<hr />';
1708: }
1.227 albertel 1709: }
1710: # if we are viewing someone else preserve that info
1.284 albertel 1711: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1712: foreach my $field ('symb','courseid','domain','username') {
1713: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1714: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1715: }
1.479 raeburn 1716: foreach my $field ('trial','questiontype') {
1717: if ($env{"form.grade_$field"} ne '') {
1718: $result .= '<input type="hidden" name="grade_'.$field.
1719: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1720: }
1721: }
1.159 albertel 1722: }
1.490 raeburn 1723: if ($env{'form.grade_imsexport'}) {
1724: $result = '';
1725: }
1.159 albertel 1726: } elsif ($target eq 'tex') {
1.319 foxr 1727: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 1728: $result .= &select_metadata_hyphenation();
1729:
1.319 foxr 1730:
1.99 sakharuk 1731: }
1.159 albertel 1732: } elsif ($target eq 'edit') {
1.343 albertel 1733: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1734: $Apache::lonxml::warnings_error_header=
1735: &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 1736: my $temp=&Apache::edit::insertlist($target,$token);
1737: $result.=$temp;
1738: } elsif ($target eq 'modified') {
1739: $result=$token->[4];
1740: } else {
1741: # page_start returned a starting result, delete it if we don't need it
1742: $result = '';
1.99 sakharuk 1743: }
1.159 albertel 1744: return $result;
1.9 albertel 1745: }
1746:
1747: sub end_problem {
1.159 albertel 1748: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1749: my $result;
1.310 foxr 1750:
1.321 albertel 1751: if (!$Apache::lonxml::metamode) {
1752: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1753: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1754: }
1.319 foxr 1755:
1756: if ($target eq 'tex') {
1.321 albertel 1757: # Figure out the front matter and replace the
1758: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1759: # this in end_problem because whether or not we display due
1760: # dates depends on whether due dates have already been
1761: # displayed in the problem parts.
1762:
1.319 foxr 1763: my $frontmatter = '';
1764: my $startminipage = '';
1765: if (not $env{'form.problem_split'}=~/yes/) {
1766: $startminipage = '\begin{minipage}{\textwidth}';
1767: }
1768: my $id = $Apache::inputtags::part;
1769: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1770: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.526 raeburn 1771: my @packages = split(/,/,$packages);
1.319 foxr 1772: my $allow_print_points = 0;
1773: foreach my $partial_key (@packages) {
1774: if ($partial_key=~m/^part_0$/) {
1775: $allow_print_points=1;
1776: }
1777: }
1778: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1779: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1780: if (lc($env{'course.'.$env{'request.course.id'}.
1781: '.disableexampointprint'}) eq 'yes') {
1782: $allow_print_points=0;
1783: }
1784: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1785: 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 1786: &clear_required_languages();
1.319 foxr 1787: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1788: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1789:
1790: # Figure out what the due date is and if we need to print
1791: # it in the problem header. We have been logging the
1792: # last due date written to file.
1793:
1794: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1795: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1796: my $duedate_text = &mt('Due date: [_1]'
1797: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1798: my $temp_file;
1799: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1800:
1801: # Figure out what the last printed due date is or set it
1802: # to the epoch if no duedates have been printed.
1803:
1804: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1805: if (-e $filename) {
1806: $temp_file = Apache::File->new($filename);
1807: my @due_file = <$temp_file>;
1808: $due_file_content = $due_file[$#due_file];
1809: chomp $due_file_content;
1810: }
1811:
1812: # We display the due date iff it is not the same as the last
1813: # duedate in problem header ($due_file_content), and
1814: # none of our parts displayed a duedate.
1815: #
1816: my $parts_with_displayduedate;
1817: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1818: $parts_with_displayduedate =
1819: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1820: } else {
1821: $parts_with_displayduedate = 0;
1822: }
1823: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1824: $temp_file = Apache::File->new('>'.$filename);
1825: print $temp_file "$duetime\n";
1826: if (not $env{'request.symb'} =~ m/\.page_/) {
1827: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1828: $frontmatter .= $begin_doc.
1.448 bisitz 1829: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1830: } else {
1831: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1832: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1833: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1834: }
1.319 foxr 1835: }
1836: } else {
1.448 bisitz 1837: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1838: }
1839: } else {
1840: if (not $env{'request.symb'} =~ m/\.page_/) {
1841: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1842: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1843: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1844: }
1.319 foxr 1845: } else {
1.381 albertel 1846: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1847: }
1848: }
1849: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1850: }
1851:
1.159 albertel 1852: my $status=$Apache::inputtags::status['-1'];
1853: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1854: $target eq 'tex') {
1.249 albertel 1855: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1856: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1857: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1858: &Apache::inputtags::grade;
1.324 albertel 1859: } elsif ($status eq 'NEEDS_CHECKIN') {
1860: # no need to grade, and don't want to hide data
1.249 albertel 1861: } else {
1862: # move any submission data to .hidden
1863: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1864: }
1.159 albertel 1865: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1866: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1867: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1868: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1869: # if part is zero, no <part>s existed, so we need show the current
1870: # grading status
1871: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1872: $result.= $gradestatus;
1873: }
1874: if (
1.284 albertel 1875: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1876: ($target eq 'answer') || ($target eq 'tex')
1877: ) {
1.490 raeburn 1878: if (($target ne 'tex') &&
1879: ($env{'form.answer_output_mode'} ne 'tex') &&
1880: (!$env{'form.grade_imsexport'})) {
1.254 www 1881: $result.="</form>";
1.159 albertel 1882: }
1883: if ($target eq 'web') {
1.507 raeburn 1884: #
1885: # Closing </body></html> not added by end_page().
1886: # Added separately at end of this routine, after added
1887: # <script></script> so document will be valid xhtml.
1888: #
1889: $result.= &Apache::loncommon::end_page({'discussion' => 1,
1890: 'notbody' => 1});
1.159 albertel 1891: } elsif ($target eq 'tex') {
1.178 sakharuk 1892: my $endminipage = '';
1.284 albertel 1893: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1894: $endminipage = '\end{minipage}';
1895: }
1.284 albertel 1896: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1897: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1898: } else {
1.262 sakharuk 1899: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1900: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1901: $result .= $endminipage.'\end{document} ';
1902: } else {
1.382 albertel 1903: $result .= $endminipage;
1.262 sakharuk 1904: }
1.159 albertel 1905: }
1906: }
1907: }
1.476 www 1908: if ($target eq 'web') {
1909: $result.=&Apache::functionplotresponse::init_script();
1910: }
1.159 albertel 1911: if ($target eq 'grade') {
1912: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1913: &finalize_storage();
1914: }
1.284 albertel 1915: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1916: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1917: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1918: # normally we get it from above, but in CSTR
1.172 albertel 1919: # we always show answer mode too.
1.159 albertel 1920: }
1921: } elsif ($target eq 'meta') {
1922: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1923: @Apache::inputtags::response=();
1.159 albertel 1924: $result=&Apache::response::mandatory_part_meta;
1925: }
1.215 albertel 1926: $result.=&Apache::response::meta_part_order();
1.258 albertel 1927: $result.=&Apache::response::meta_response_order();
1.159 albertel 1928: } elsif ($target eq 'edit') {
1929: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1930: $result .= &problem_edit_footer();
1.320 albertel 1931: } elsif ($target eq 'modified') {
1932: $result .= $token->[2];
1.159 albertel 1933: }
1.155 albertel 1934:
1.284 albertel 1935: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1936: &Apache::inputtags::check_for_duplicate_ids();
1937: }
1.204 albertel 1938:
1939: &reset_problem_globals('problem');
1.159 albertel 1940:
1.502 foxr 1941: #
1942: # This shouild be just above the return so that the
1943: # time put in the javascript is as late as possible in the
1944: # computation:
1945: #
1946: if ($target eq 'web') {
1947: $result .= &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 1948: #
1949: # Closing tags delayed so any <script></script> tags
1950: # not in head can appear inside body, for valid xhtml.
1951: #
1952: $result .= "</body>\n</html>";
1.502 foxr 1953: }
1.159 albertel 1954: return $result;
1.48 albertel 1955: }
1956:
1.108 albertel 1957:
1.48 albertel 1958: sub start_library {
1.159 albertel 1959: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1960: my ($result,$form_tag_start);
1.371 albertel 1961: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1962: &init_problem_globals('library');
1963: $Apache::lonhomework::type='problem';
1964: }
1.159 albertel 1965: if ($target eq 'edit') {
1.343 albertel 1966: ($result,$form_tag_start)=
1967: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1968: 'Edit');
1969: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1970: my $temp=&Apache::edit::insertlist($target,$token);
1971: $result.=$temp;
1972: } elsif ($target eq 'modified') {
1973: $result=$token->[4];
1.340 albertel 1974: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1975: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1976: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1977: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1978: ($result,$form_tag_start)=
1979: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1980: $name);
1.479 raeburn 1981: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 1982: $result.=" \n $form_tag_start".
1.159 albertel 1983: '<input type="hidden" name="submitted" value="yes" />';
1984: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1985: if ($Apache::lonhomework::type eq 'practice') {
1986: $result.= '<input type="submit" name="resetdata" '.
1987: 'value="'.&mt('New Problem Variation').'" />'.
1988: &practice_problem_header().'<hr />';
1989: }
1.159 albertel 1990: }
1991: return $result;
1.48 albertel 1992: }
1993:
1994: sub end_library {
1.159 albertel 1995: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1996: my $result='';
1997: if ($target eq 'edit') {
1998: $result=&problem_edit_footer();
1.371 albertel 1999: } elsif ($target eq 'web'
2000: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
2001: && $env{'request.state'} eq "construct") {
1.349 albertel 2002: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 2003: }
1.371 albertel 2004: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
2005: &reset_problem_globals('library');
2006: }
1.159 albertel 2007: return $result;
1.197 www 2008: }
2009:
2010: sub start_definetag {
1.326 albertel 2011: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 2012:
2013: my $result;
2014:
2015: my $name = $token->[2]->{'name'};
1.326 albertel 2016: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 2017: if ($target eq 'web') {
2018: if ($name=~/^\//) {
2019: $result=
2020: '<br /><table class="LC_sty_end"><tr><th>'.
2021: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2022: } else {
2023: $result=
2024: '<br /><table class="LC_sty_begin"><tr><th>'.
2025: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2026: }
2027: $skip = &HTML::Entities::encode($skip, '<>&"');
2028: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 2029: }
2030: return $result;
2031: }
2032:
2033: sub end_definetag {
2034: return '';
1.1 albertel 2035: }
2036:
2037: sub start_block {
1.201 albertel 2038: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 2039:
2040: my $result;
1.1 albertel 2041:
1.339 albertel 2042: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2043: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 2044: my $code = $token->[2]->{'condition'};
1.385 albertel 2045: if (defined($code) && $code ne '') {
1.137 albertel 2046: if (!$Apache::lonxml::default_homework_loaded) {
2047: &Apache::lonxml::default_homework_load($safeeval);
2048: }
1.131 albertel 2049: $result = &Apache::run::run($code,$safeeval);
2050: &Apache::lonxml::debug("block :$code: returned :$result:");
2051: } else {
2052: $result='1';
2053: }
2054: if ( ! $result ) {
1.201 albertel 2055: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 2056: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2057: }
2058: $result='';
2059: } elsif ($target eq 'edit') {
2060: $result .=&Apache::edit::tag_start($target,$token);
2061: $result .=&Apache::edit::text_arg('Test Condition:','condition',
2062: $token,40);
2063: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2064: } elsif ($target eq 'modified') {
2065: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2066: $safeeval,'condition');
2067: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 2068: }
1.131 albertel 2069: return $result;
1.1 albertel 2070: }
2071:
2072: sub end_block {
1.167 www 2073: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2074: my $result;
2075: if ($target eq "edit") {
2076: $result.= &Apache::edit::tag_end($target,$token,'');
2077: }
2078: return $result;
2079: }
1.500 foxr 2080: #
2081: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
2082: # ...
2083: # </languageblock>
2084: #
2085: # This declares the intent to provide content that can be rendered in the
2086: # set of languages in the include specificatino but not in the exclude
2087: # specification. If a currently preferred language is in the include list
2088: # the content in the <languageblock>...</languageblock> is rendered
2089: # If the currently preferred language is in the exclude list,
2090: # the content in the <languageblock>..></languageblock is not rendered.
2091: #
2092: # Pathalogical case handling:
2093: # - Include specified, without the preferred language but exclude specified
2094: # also without the preferred langauge results in rendering the block.
2095: # - Exclude specified without include and excluden not containing a
2096: # preferred language renders the block.
2097: # - Include and exclude both specifying the preferred language does not
2098: # render the block.
2099: # - If neither include/exclude is specified, the block gets rendered.
2100: #
2101: # This tag has no effect when target is in {edit, modified}
2102: #
1.167 www 2103: sub start_languageblock {
1.201 albertel 2104: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 2105:
1.500 foxr 2106: my $result = '';
1.167 www 2107:
1.339 albertel 2108: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2109: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 2110: my $include = $token->[2]->{'include'};
2111: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 2112: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 2113:
2114: # This should not even happen, since we should at least have the server language
2115:
2116: if (!$preferred_languages[0]) {
2117: $preferred_languages[0]='en';
2118: }
2119:
2120: # Now loop over all languages in order of preference
2121:
2122: my $render;
1.398 www 2123: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 2124:
2125: # If neither include/nor exlude is present the block is going
2126: # to get rendered.
2127:
1.399 www 2128: my $found=0;
1.500 foxr 2129: $render=1;
2130:
2131: # If include is specified, don't render the block
2132: # unless the preferred language is included in the set.
2133:
1.398 www 2134: if ($include) {
1.500 foxr 2135: $render=0;
1.398 www 2136: foreach my $included_language (split(/\,/,$include)) {
2137: if ($included_language eq $preferred_language) {
1.500 foxr 2138: $render=1;
1.399 www 2139: $found=1;
1.500 foxr 2140: last; # Only need to find the first.
1.398 www 2141: }
2142: }
2143: }
1.500 foxr 2144: # Do we have an exclude argument?
2145: # If so, and one of the languages matches a preferred language
2146: # inhibit rendering the block. Note that in the pathalogical case the
2147: # author has specified a preferred language in both the include and exclude
2148: # attribte exclude is preferred.
2149:
1.398 www 2150: if ($exclude) {
1.500 foxr 2151: $render=1;
1.398 www 2152: foreach my $excluded_language (split(/\,/,$exclude)) {
2153: if ($excluded_language eq $preferred_language) {
1.500 foxr 2154: $render=0;
1.399 www 2155: $found=1;
1.500 foxr 2156: last; # Only need to find the first.
1.398 www 2157: }
2158: }
2159: }
1.500 foxr 2160: if ($found) {
2161: last; # Done on any match of include or exclude.
2162: }
1.398 www 2163: }
1.500 foxr 2164: # If $render not true skip the entire block until </languageblock>
2165: #
2166:
2167: if ( ! $render ) {
1.201 albertel 2168: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
2169: $style);
2170: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2171: }
1.500 foxr 2172: # If $render is true, we've not skipped the contents of the <languageglock>
2173: # and the normal loncapa processing flow will render it as a matter of course.
2174:
1.167 www 2175: } elsif ($target eq 'edit') {
2176: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2177: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 2178: $token,40);
1.211 albertel 2179: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 2180: $token,40);
2181: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2182: } elsif ($target eq 'modified') {
2183: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 2184: $safeeval,'include',
2185: 'exclude');
1.167 www 2186: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2187: }
2188: return $result;
2189: }
2190:
2191: sub end_languageblock {
1.170 www 2192: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2193: my $result;
1.201 albertel 2194: if ($target eq "edit") {
1.170 www 2195: $result.= &Apache::edit::tag_end($target,$token,'');
2196: }
2197: return $result;
2198: }
1.500 foxr 2199: # languagblock specific tags:
2200: {
2201: # For chunks of a resource that has translations, this hash contains
2202: # the translations available indexed by language name.
2203: #
2204:
2205: my %available_texts;
1.170 www 2206:
1.500 foxr 2207: # <translated> starts a block of a resource that has multiple translations.
2208: # See the <lang> tag as well.
2209: # When </translated> is encountered if there is a translation for the
2210: # currently preferred language, that is rendered inthe web/tex/webgrade
2211: # targets. Otherwise, the default text is rendered.
2212: #
2213: # Note that <lang> is only registered for the duration of the
2214: # <translated>...</translated> block
2215: #
2216: # Pathalogical case handling:
2217: # - If there is no <lang> that specifies a 'default' and there is no
2218: # translation that matches a preferred language, nothing is rendered.
2219: # - Nested <translated>...</translated> might be linguistically supported by
2220: # XML due to the stack nature of tag registration(?) however the rendered
2221: # output will be incorrect because there is only one %available_texts
2222: # has and end_translated clears it.
2223: # - Material outside of a <lang>...</lang> block within the
2224: # <translated>...<translated> block won't render either e.g.:
2225: # <translated>
2226: # The following will be in your preferred langauge:
2227: # <lang which='en'>
2228: # This section in english
2229: # </lang>
2230: # <lang which='sgeiso'>
2231: # Hier es ist auf Deutsch.
2232: # </lang>
2233: # <lang which='sfriso'>
2234: # En Francais
2235: # </lang>
2236: # </translated>
2237: #
2238: # The introductory text prior to the first <lang> tag is not rendered.
2239: #
1.397 albertel 2240: sub start_translated {
2241: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2242: &Apache::lonxml::register('Apache::structuretags',('lang'));
2243: undef(%available_texts);
2244: }
2245:
2246: sub end_translated {
2247: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2248: my $result;
2249: #show the translation on viewable targets
2250: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
2251: # or non-viewable targets, if it's embedded in something that
2252: # wants the output
2253: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
2254: && &Apache::lonxml::in_redirection() ) ) {
2255: my @possibilities = keys(%available_texts);
2256: my $which =
2257: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 2258: if ($target eq 'tex') {
2259: $result = &select_hyphenation($which);
2260: }
2261: $result .= $available_texts{$which};
2262: if ($target eq 'tex') {
2263: $result .= &select_metadata_hyphenation(); # Restore original language.
2264: }
1.397 albertel 2265: }
2266: undef(%available_texts);
2267: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
2268: return $result;
2269: }
2270:
1.500 foxr 2271: # <lang [which='language-name'] [other='lang1,lang2...']>
2272: # Specifies that the block contained within it is a translation
2273: # for a specific language specified by the 'which' attribute. The
2274: # 'other' attribute can be used by itself or in conjunction with
2275: # which to specify this tag _may_ be used as a translation for some
2276: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
2277: # specifying that the block provides a translation for US (primary)
2278: # Canadian, Australian and UK Englush.
2279: #
2280: # Comment: this seems a bit silly why not just support a list of languages
2281: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
2282: #
2283: # Effect:
2284: # The material within the <lang>..</lang> block is stored in the
2285: # specified set of $available_texts hash entries, the appropriate one
2286: # is selected at </translated> time.
2287: #
2288: # Pathalogical case handling:
2289: # If a language occurs multiple times within a <translated> block,
2290: # only the last one is rendered e.g.:
2291: #
2292: # <translated>
2293: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
2294: # Red green color blindness is quite common affecting about 7.8% of
2295: # the male population, but onloy about .65% of the female population.
2296: # </lang>
2297: # Red green colour blindness is quite common affecting about 7.8% of
2298: # the male population, but onloy about .65% of the female population.
2299: # <lang which='seniso', other='senisoCA,senisoAU'>
2300: # </translated>
2301: #
2302: # renders the correct spelling of color (colour) for people who have specified
2303: # a preferred language that is one of the British Commonwealth languages
2304: # even though those are also listed as valid selections for the US english
2305: # <lang> block.
2306: #
1.397 albertel 2307: sub start_lang {
2308: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2309: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2310: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2311: &Apache::lonxml::startredirection();
2312: }
2313: return '';
2314: }
2315:
2316: sub end_lang {
2317: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2318: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2319: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2320: my $result = &Apache::lonxml::endredirection();
2321: my $which = &Apache::lonxml::get_param('which',$parstack,
2322: $safeeval);
1.431 raeburn 2323: if ($which=~/\w/) {
2324: $available_texts{$which} = $result;
2325: }
2326: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
2327: $safeeval);
2328: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
2329: if ($language=~/\w/) {
2330: $available_texts{$language} = $result;
2331: }
1.427 bisitz 2332: }
2333:
1.397 albertel 2334: }
2335: return '';
2336: }
1.500 foxr 2337: } # end langauge block specific tags.
2338:
1.397 albertel 2339:
1.170 www 2340: sub start_instructorcomment {
1.201 albertel 2341: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 2342:
2343: my $result;
2344:
1.339 albertel 2345: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2346: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 2347: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 2348: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 2349: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
2350: $parser,$style);
1.170 www 2351: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2352: }
2353: $result='';
2354: } elsif ($target eq 'edit') {
2355: $result .=&Apache::edit::tag_start($target,$token);
2356: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2357: }
2358: return $result;
2359: }
2360:
2361: sub end_instructorcomment {
1.159 albertel 2362: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2363: my $result;
2364: if ($target eq "edit") {
2365: $result.= &Apache::edit::tag_end($target,$token,'');
2366: }
2367: return $result;
1.4 tsai 2368: }
2369:
2370: sub start_while {
1.326 albertel 2371: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2372:
1.160 albertel 2373: my $result;
1.339 albertel 2374: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2375: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2376: my $code = $token->[2]->{'condition'};
1.4 tsai 2377:
1.160 albertel 2378: push( @Apache::structuretags::whileconds, $code);
2379: if (!$Apache::lonxml::default_homework_loaded) {
2380: &Apache::lonxml::default_homework_load($safeeval);
2381: }
2382: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2383: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2384: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2385: push( @Apache::structuretags::whileline, $token->[5]);
2386: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2387: if ( $result ) {
2388: &Apache::lonxml::newparser($parser,\$bodytext);
2389: }
2390: } elsif ($target eq 'edit') {
2391: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2392: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2393: $token,40);
2394: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2395: } elsif ($target eq 'modified') {
2396: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2397: $safeeval,'condition');
2398: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2399: }
1.160 albertel 2400: return $result;
1.4 tsai 2401: }
2402:
2403: sub end_while {
1.159 albertel 2404: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2405: my $result;
2406:
1.339 albertel 2407: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2408: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2409: my $code = pop(@Apache::structuretags::whileconds);
2410: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2411: my $line = pop(@Apache::structuretags::whileline);
2412: my $return = &Apache::run::run($code,$safeeval);
2413: my $starttime=time;
2414: my $error=0;
2415: while ($return) {
2416: if (time-$starttime >
2417: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2418: $return = 0; $error=1; next;
1.161 albertel 2419: }
2420: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2421: if ($target eq 'grade' || $target eq 'answer' ||
2422: $target eq 'analyze') {
2423: # grade/answer/analyze should produce no output but if we
2424: # are redirecting, the redirecter should know what to do
2425: # with the output
2426: if (!$Apache::lonxml::redirection) { undef($result); }
2427: }
1.161 albertel 2428: $return = &Apache::run::run($code,$safeeval);
2429: }
1.516 bisitz 2430: if ($error) {
2431: &Apache::lonxml::error(
2432: '<pre>'
2433: .&mt('Code ran too long. It ran for more than [_1] seconds.',
2434: $Apache::lonnet::perlvar{'lonScriptTimeout'})
2435: .&mt('This occurred while running <while> on line [_1].',
2436: $line)
2437: .'</pre>');
2438: }
1.160 albertel 2439: } elsif ($target eq "edit") {
2440: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2441: }
1.160 albertel 2442: return $result;
1.1 albertel 2443: }
1.6 tsai 2444:
1.160 albertel 2445: # <randomlist show="1">
1.6 tsai 2446: # <tag1>..</tag1>
2447: # <tag2>..</tag2>
2448: # <tag3>..</tag3>
1.160 albertel 2449: # ...
1.6 tsai 2450: # </randomlist>
2451: sub start_randomlist {
1.326 albertel 2452: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2453: my $result;
1.339 albertel 2454: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2455: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2456: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2457: my $b_parser= HTML::LCParser->new(\$body);
2458: $b_parser->xml_mode(1);
2459: $b_parser->marked_sections(1);
1.159 albertel 2460: my $b_tok;
2461: my @randomlist;
2462: my $list_item;
2463: while($b_tok = $b_parser->get_token() ) {
2464: if($b_tok->[0] eq 'S') { # start tag
2465: # get content of the tag until matching end tag
2466: # get all text upto the matching tag
2467: # and push the content into @randomlist
2468: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2469: $b_parser);
2470: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2471: push(@randomlist,$list_item);
2472: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2473: # $list_item</b>";
2474: }
2475: if($b_tok->[0] eq 'T') { # text
2476: # what to do with text in between tags?
2477: # print "<b>TEXT $b_tok->[1]</b><br />";
2478: }
2479: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2480: # print "<b>END-TAG $b_tok->[1]</b><br />";
2481: # }
2482: }
1.303 albertel 2483: if (@randomlist) {
2484: my @idx_arr = (0 .. $#randomlist);
2485: &Apache::structuretags::shuffle(\@idx_arr);
2486: my $bodytext = '';
2487: my $show=$#randomlist;
2488: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2489: $showarg--;
2490: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2491: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2492: my @currlist;
2493: my $part = $Apache::inputtags::part;
2494: if ($part ne '') {
2495: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2496: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2497: if (!(grep(/^\Q$part\E$/,@currlist))) {
2498: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2499: }
2500: } else {
2501: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2502: }
2503: }
2504: }
1.526 raeburn 2505: for my $i (0 .. $show) {
2506: $bodytext .= "$randomlist[ $idx_arr[$i] ]";
1.303 albertel 2507: }
2508: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2509: }
2510: } elsif ($target eq 'edit' ) {
2511: $result .=&Apache::edit::tag_start($target,$token);
2512: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2513: $token,5);
2514: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2515: } elsif ($target eq 'modified' ) {
2516: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2517: $safeeval,'show');
2518: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2519: }
2520: return $result;
1.7 tsai 2521: }
2522:
2523: sub shuffle {
2524: my $a=shift;
2525: my $i;
1.303 albertel 2526: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 2527: &Apache::response::pushrandomnumber();
1.159 albertel 2528: for($i=@$a;--$i;) {
2529: my $j=int(&Math::Random::random_uniform() * ($i+1));
2530: next if $i == $j;
2531: @$a[$i,$j] = @$a[$j,$i];
2532: }
1.251 albertel 2533: &Apache::response::poprandomnumber();
1.7 tsai 2534: }
1.6 tsai 2535: }
2536:
2537: sub end_randomlist {
1.159 albertel 2538: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2539: my $result;
2540: if ($target eq 'edit' ) {
2541: $result=&Apache::edit::tag_end($target,$token,
2542: 'End Randomly Parsed Block');
2543: }
2544: return $result;
1.6 tsai 2545: }
2546:
1.283 albertel 2547: sub ordered_show_check {
2548: my $last_part=$Apache::inputtags::partlist[-2];
2549: my $in_order=
2550: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2551: my $in_order_show=1;
2552: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2553: $in_order_show=&Apache::response::check_status($last_part);
2554: }
2555: return $in_order_show;
2556: }
2557:
1.469 www 2558:
2559: sub start_startpartmarker {
2560: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2561: my $result='';
2562: if ($target eq 'edit') {
2563: $result=&Apache::edit::tag_start($target,$token);
2564: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2565: $result.=&Apache::edit::end_table();
2566:
2567: }
2568: return $result;
2569: }
2570:
2571: sub end_startpartmarker {
2572: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2573: my @result;
2574: if ($target eq 'edit') { $result[1]='no'; }
2575: return @result;
2576: }
2577:
2578: sub start_endpartmarker {
2579: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2580: my $result='';
2581: if ($target eq 'edit') {
2582: $result=&Apache::edit::tag_start($target,$token);
2583: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2584: $result.=&Apache::edit::end_table();
2585:
2586: }
2587: return $result;
2588: }
2589:
2590: sub end_endpartmarker {
2591: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2592: my @result;
2593: if ($target eq 'edit') { $result[1]='no'; }
2594: return @result;
2595: }
2596:
2597:
2598:
2599:
2600:
1.11 albertel 2601: sub start_part {
1.326 albertel 2602: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2603: if (!$Apache::lonxml::metamode) {
2604: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2605: # duedates.
2606: }
1.159 albertel 2607: my $result='';
1.386 albertel 2608: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2609: $Apache::inputtags::part=$id;
1.177 albertel 2610: push(@Apache::inputtags::partlist,$id);
1.536 ! raeburn 2611: $Apache::inputtags::leniency='';
1.177 albertel 2612: @Apache::inputtags::response=();
1.159 albertel 2613: @Apache::inputtags::previous=();
2614: @Apache::inputtags::previous_version=();
1.405 albertel 2615: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2616: &Apache::response::reset_params();
2617:
1.159 albertel 2618: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2619: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2620: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.528 raeburn 2621: if ($Apache::lonhomework::type eq 'randomizetry') {
2622: my $rndseed=&setup_rndseed($safeeval,$target);
2623: if (($target eq 'grade') && &Apache::response::submitted()) {
1.529 raeburn 2624: $Apache::lonhomework::results{"resource.$id.rndseed"}=$rndseed;
1.528 raeburn 2625: }
2626: } elsif (($target eq 'grade') && &Apache::response::submitted()) {
1.529 raeburn 2627: $Apache::lonhomework::results{"resource.$id.rndseed"}=$Apache::lonhomework::rawrndseed;
1.528 raeburn 2628: }
1.283 albertel 2629: my $in_order_show=&ordered_show_check();
1.214 albertel 2630: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2631: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2632: &Apache::run::run($expression,$safeeval);
1.159 albertel 2633:
2634: if ($target eq 'meta') {
1.224 www 2635: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2636: return &Apache::response::mandatory_part_meta.
2637: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2638: } elsif ($target eq 'web' || $target eq 'grade' ||
2639: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2640: if ($hidden || !$in_order_show) {
1.326 albertel 2641: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2642: } else {
2643: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2644: push (@Apache::inputtags::status,$status);
2645: my $expression='$external::datestatus="'.$status.'";';
2646: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2647: &Apache::run::run($expression,$safeeval);
1.284 albertel 2648: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2649: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2650: }
1.216 albertel 2651: if (( $status eq 'CLOSED' ) ||
2652: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2653: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2654: ( $status eq 'BANNED') ||
2655: ( $status eq 'UNAVAILABLE') ||
2656: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2657: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2658: $style);
1.159 albertel 2659: if ( $target eq "web" ) {
1.211 albertel 2660: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2661: } elsif ( $target eq 'tex' ) {
1.284 albertel 2662: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2663: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2664: } else {
1.211 albertel 2665: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2666: }
1.159 albertel 2667: }
2668: } else {
2669: if ($target eq 'tex') {
1.284 albertel 2670: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2671: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2672: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2673: } else {
2674: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2675: }
1.195 sakharuk 2676: }
1.159 albertel 2677: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2678: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.526 raeburn 2679: my @allkeys = split(/,/,$allkeys);
1.222 sakharuk 2680: my $allow_print_points = 0;
2681: foreach my $partial_key (@allkeys) {
1.230 albertel 2682: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2683: if ($1 ne '0') {$allow_print_points=1;}
2684: }
2685: }
1.275 albertel 2686: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2687: if (defined($maxtries) && $maxtries < 0) {
2688: $allow_print_points=0;
2689: }
1.302 albertel 2690: if (lc($env{'course.'.$env{'request.course.id'}.
2691: '.disableexampointprint'}) eq 'yes') {
2692: $allow_print_points=0;
2693: }
1.463 foxr 2694: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2695: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2696:
2697: }
1.233 www 2698: } elsif ($target eq 'web') {
1.479 raeburn 2699: if ($status eq 'CAN_ANSWER') {
2700: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2701: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
2702: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
2703: my $num = scalar(@Apache::inputtags::partlist)-1;
2704: if ($probrandomize eq 'randomizetry') {
2705: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
2706: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2707: } else {
2708: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2709: if ($probrandtries ne $reqtries) {
2710: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2711: }
2712: }
2713: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
2714: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2715: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2716: }
2717: }
1.475 raeburn 2718: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2719: }
2720: }
2721: }
2722: } elsif ($target eq 'edit') {
2723: $result.=&Apache::edit::tag_start($target,$token);
2724: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2725: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2726: ' '.
2727: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2728: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2729: } elsif ($target eq 'modified') {
2730: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2731: $safeeval,'id','display');
1.159 albertel 2732: if ($constructtag) {
1.225 albertel 2733: #limiting ids to only letters numbers, and space
1.224 www 2734: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2735: $result = &Apache::edit::rebuild_tag($token);
2736: }
2737: }
2738: return $result;
1.11 albertel 2739: }
2740:
2741: sub end_part {
1.159 albertel 2742: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2743: &Apache::lonxml::debug("in end_part $target ");
2744: my $status=$Apache::inputtags::status['-1'];
2745: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2746: my $in_order_show=&ordered_show_check();
1.321 albertel 2747: my $result;
2748: if (!$Apache::lonxml::metamode) {
2749: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2750: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2751: }
1.312 albertel 2752: if ($target eq 'grade') {
1.249 albertel 2753: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2754: !$hidden && $in_order_show) {
1.311 foxr 2755: $result.=&Apache::inputtags::grade;
1.249 albertel 2756: } else {
2757: # move any submission data to .hidden
2758: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2759: }
1.283 albertel 2760: } elsif (($target eq 'web' || $target eq 'tex') &&
2761: !$hidden && $in_order_show) {
1.159 albertel 2762: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2763: $target);
1.490 raeburn 2764: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2765: ($env{'form.grade_imsexport'})) {
1.212 albertel 2766: $gradestatus='';
2767: }
1.311 foxr 2768: $result.=$gradestatus;
1.265 sakharuk 2769: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2770: } elsif ($target eq 'edit') {
1.311 foxr 2771: $result.=&Apache::edit::end_table();
1.322 albertel 2772: } elsif ($target eq 'modified') {
2773: $result .= $token->[2];
1.159 albertel 2774: }
2775: pop @Apache::inputtags::status;
2776: $Apache::inputtags::part='';
1.536 ! raeburn 2777: $Apache::inputtags::leniency='';
1.295 albertel 2778: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2779: return $result;
1.11 albertel 2780: }
1.1 albertel 2781:
1.25 albertel 2782: sub start_preduedate {
1.326 albertel 2783: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2784: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2785: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2786: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2787: if (!$Apache::lonhomework::scantronmode &&
2788: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2789: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2790: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2791: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2792: }
1.24 albertel 2793: }
1.159 albertel 2794: return '';
1.24 albertel 2795: }
2796:
1.25 albertel 2797: sub end_preduedate {
1.159 albertel 2798: return '';
1.24 albertel 2799: }
2800:
1.369 foxr 2801: # In all the modes where <postanswerdate> text is
2802: # displayable, all we do is eat up the text between the start/stop
2803: # tags if the conditions are not right to display it.
1.25 albertel 2804: sub start_postanswerdate {
1.326 albertel 2805: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2806: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2807: &Apache::lonnet::allowed('pav',
2808: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2809: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2810: $target eq 'tex' ) {
1.300 albertel 2811: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2812: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2813: (($target eq 'tex') && !$pav)) {
1.326 albertel 2814: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2815: }
2816: }
2817: return '';
1.24 albertel 2818: }
2819:
1.25 albertel 2820: sub end_postanswerdate {
1.159 albertel 2821: return '';
1.24 albertel 2822: }
2823:
1.25 albertel 2824: sub start_notsolved {
1.326 albertel 2825: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2826: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2827: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2828: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2829: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2830: if ($gradestatus =~ /^correct/ &&
2831: &Apache::response::show_answer()) {
1.159 albertel 2832: &Apache::lonxml::debug("skipping");
1.326 albertel 2833: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2834: }
1.24 albertel 2835: }
1.159 albertel 2836: return '';
1.24 albertel 2837: }
2838:
1.25 albertel 2839: sub end_notsolved {
1.159 albertel 2840: return '';
1.24 albertel 2841: }
2842:
2843: sub start_solved {
1.326 albertel 2844: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2845: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2846: $target eq 'tex') {
2847: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2848: if ($gradestatus !~ /^correct/ ||
2849: !&Apache::response::show_answer()) {
1.326 albertel 2850: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2851: }
1.24 albertel 2852: }
1.159 albertel 2853: return '';
1.24 albertel 2854: }
2855:
2856: sub end_solved {
1.248 albertel 2857: return '';
2858: }
2859:
2860: sub start_problemtype {
1.326 albertel 2861: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2862: my $result;
1.339 albertel 2863: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2864: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2865: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2866: if (!defined($mode)) { $mode='show'; }
2867: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2868: my $found=0;
2869: foreach my $type (split(',',$for)) {
2870: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2871: }
2872: if ($mode eq 'show' && !$found) {
1.326 albertel 2873: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2874: }
2875: if ($mode eq 'hide' && $found) {
1.326 albertel 2876: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2877: }
2878: } elsif ($target eq 'edit') {
2879: $result .=&Apache::edit::tag_start($target,$token);
2880: $result.=&Apache::edit::select_arg('Mode:','mode',
2881: [['show','Show'],
2882: ['hide','Hide']]
2883: ,$token);
2884: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.511 bisitz 2885: [ ['exam','Bubblesheet Exam/Quiz Problem'],
1.248 albertel 2886: ['survey','Survey'],
1.465 raeburn 2887: ['surveycred','Survey (with credit)'],
2888: ['anonsurvey','Anonymous Survey'],
2889: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2890: ['problem','Homework Problem'],
1.479 raeburn 2891: ['practice','Practice Problem'],
2892: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2893: ,$token);
2894: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2895: } elsif ($target eq 'modified') {
2896: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2897: $safeeval,'mode','for');
2898: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2899: }
2900: return $result;
2901: }
2902:
2903: sub end_problemtype {
1.159 albertel 2904: return '';
1.24 albertel 2905: }
1.34 albertel 2906:
2907: sub start_startouttext {
1.159 albertel 2908: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2909: my @result=(''.'');
2910: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2911:
2912: my $nesting =
2913: &Apache::lonxml::set_state('outtext',
2914: &Apache::lonxml::get_state('outtext')+1);
2915: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2916: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2917: }
1.159 albertel 2918: return (@result);
1.34 albertel 2919: }
1.159 albertel 2920:
1.34 albertel 2921: sub end_startouttext {
1.326 albertel 2922: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2923: my $result='';
2924: my $text='';
2925: if ($target eq 'edit') {
1.424 foxr 2926: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2927: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.527 golterma 2928: $result.=&Apache::edit::start_table($token)."<tr><td>".&Apache::loncommon::insert_folding_button()
2929: ." ".&mt('Text Block')."</td>"
1.438 bisitz 2930: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2931: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 2932: .'</span></td>'
1.515 golterma 2933: .'<td><span id="math_'.$areaid.'">'
1.474 raeburn 2934: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
1.512 bisitz 2935: .'</span></td>'
1.474 raeburn 2936: .'<td>'
2937: .&Apache::edit::insertlist($target,$token)
2938: .'</td>'
1.515 golterma 2939: .'<td class="LC_edit_problem_latexhelper">' .
1.474 raeburn 2940: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2941: &Apache::edit::end_row().
1.362 albertel 2942: &Apache::edit::start_spanning_row()."\n".
1.255 www 2943: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2944: }
2945: if ($target eq 'modified') {
1.219 albertel 2946: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2947: }
2948: if ($target eq 'tex') {
2949: $result .= '\noindent ';
2950: }
2951: return $result;
1.34 albertel 2952: }
1.159 albertel 2953:
1.34 albertel 2954: sub start_endouttext {
1.159 albertel 2955: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2956: my $result='';
2957: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2958: if ($target eq "modified") {
2959: $result='<endouttext />'.
1.377 albertel 2960: &Apache::edit::handle_insertafter('startouttext');
2961: }
1.404 albertel 2962:
2963: my $nesting =
2964: &Apache::lonxml::set_state('outtext',
2965: &Apache::lonxml::get_state('outtext')-1);
2966: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2967: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2968: &Apache::lonxml::set_state('outtext', 0);
2969: }
1.159 albertel 2970: return $result;
1.34 albertel 2971: }
1.159 albertel 2972:
1.34 albertel 2973: sub end_endouttext {
1.159 albertel 2974: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2975: my @result=('','');
2976: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2977: return (@result);
1.34 albertel 2978: }
1.159 albertel 2979:
1.45 albertel 2980: sub delete_startouttext {
1.326 albertel 2981: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2982: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2983: my $text=$$parser['-1']->get_text("/endouttext");
2984: my $ntoken=$$parser['-1']->get_token();
2985: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2986: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2987: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2988: # they did the last time round
2989: &Apache::lonxml::increasedepth($ntoken);
2990: &Apache::lonxml::decreasedepth($ntoken);
2991: return 1;
1.193 www 2992: }
2993:
2994: sub start_simpleeditbutton {
2995: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2996: my $result='';
1.284 albertel 2997: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2998: ($target eq 'web') &&
1.330 albertel 2999: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 3000: my $url=$env{'request.noversionuri'};
1.193 www 3001: $url=~s/\?.*$//;
1.367 albertel 3002: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 3003: # Warning makes more sense and is more important on edit screen
1.442 bisitz 3004: # $result='<p class="LC_warning">'
3005: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
3006: # .&Apache::loncommon::help_open_topic('Caching')
3007: # .'</p>';
1.486 www 3008: $result.=&Apache::loncommon::head_subbox(
3009: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 3010: .&Apache::lonhtmlcommon::add_item_funclist(
3011: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
3012: .&mt('Edit').'</a>')
1.486 www 3013: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 3014:
1.193 www 3015: }
3016: return $result;
3017: }
3018:
3019: sub end_simpleeditbutton {
3020: return '';
1.45 albertel 3021: }
1.34 albertel 3022:
1.428 raeburn 3023: sub practice_problem_header {
3024: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
3025: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
3026: '</span>';
3027: }
3028:
1.479 raeburn 3029: sub randomizetry_problem_header {
3030: my ($problemstatus,$reqtries) = @_;
3031: my ($header,$text);
3032: if ($reqtries > 1) {
3033: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
3034: if (($problemstatus eq 'no') ||
3035: ($problemstatus eq 'no_feedback_ever')) {
3036: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3037: } else {
3038: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3039: }
3040: } else {
3041: $header = &mt('New Problem Variation Each Try');
3042: if (($problemstatus eq 'no') ||
3043: ($problemstatus eq 'no_feedback_ever')) {
3044: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
3045:
3046: } else {
3047: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
3048: }
3049: }
3050: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
3051: '<span class="LC_info">'.$text.'</span><hr />';
3052: }
3053:
3054: sub randomizetry_part_header {
3055: my ($problemstatus,$reqtries,$num) = @_;
3056: my ($header,$text);
3057: if ($reqtries eq 'none') {
3058: $header = &mt('No Question Variation');
3059: $text = &mt('For this question there will no new variation after a try.');
3060: } elsif ($reqtries > 1) {
3061: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
3062: if (($problemstatus eq 'no') ||
3063: ($problemstatus eq 'no_feedback_ever')) {
3064: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3065: } else {
3066: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3067: }
3068: } else {
3069: $header = &mt('New Question Variation For Each Try');
3070: if (($problemstatus eq 'no') ||
3071: ($problemstatus eq 'no_feedback_ever')) {
3072: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
3073: } else {
3074: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
3075: }
3076: }
3077: my $output;
3078: if ($num > 1) {
3079: $output .= '<hr />';
3080: }
3081: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
3082: '<span class="LC_info">'.$text.'</span><br /><br />';
3083: return $output;
3084: }
3085:
1.1 albertel 3086: 1;
3087: __END__
1.435 jms 3088:
3089: =pod
3090:
3091: =back
3092:
3093: =cut
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