Annotation of loncom/homework/structuretags.pm, revision 1.512.2.17
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.512.2.17! raeburn 4: # $Id: structuretags.pm,v 1.512.2.16 2018/11/01 19:39:28 raeburn Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.435 jms 30: =pod
31:
32: =head1 NAME
33:
34: Apache::structuretags
35:
36: =head1 SYNOPSIS
37:
38:
39: This is part of the LearningOnline Network with CAPA project
40: described at http://www.lon-capa.org.
41:
42:
43: =head1 NOTABLE SUBROUTINES
44:
45: =over
46:
47: =item
48:
49: =back
50:
51: =cut
52:
1.133 sakharuk 53:
1.1 albertel 54: package Apache::structuretags;
55:
56: use strict;
57: use Apache::lonnet;
1.101 sakharuk 58: use Apache::File();
1.147 www 59: use Apache::lonmenu;
1.210 albertel 60: use Apache::lonlocal;
1.231 sakharuk 61: use Apache::lonxml;
1.434 foxr 62: use Apache::londefdef;
1.338 albertel 63: use Apache::lonenc();
1.500 foxr 64: use Apache::loncommon();
1.267 albertel 65: use Time::HiRes qw( gettimeofday tv_interval );
1.356 www 66: use lib '/home/httpd/lib/perl/';
67: use LONCAPA;
68:
1.78 harris41 69: BEGIN {
1.469 www 70: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','translated','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startpartmarker','startouttext','endpartmarker','endouttext','simpleeditbutton','definetag'));
1.10 albertel 71: }
72:
1.500 foxr 73:
74: #---------------------------------------------------------------------------------
75: #
76: # This section of code deals with hyphenation management.
77: # We must do three things:
78: # - keep track fo the desired languages to alter the header.
79: # - provide hyphenation selection as needed by each language that appears in the
80: # text.
81: # - Provide the header text needed to make available the desired hyphenations.
82: #
83: #
84:
85: # Hash whose keys are the languages encountered in the document/resource.
86: #
87:
88: my %languages_required;
89: ##
90: # Given a language selection as input returns a chunk of LaTeX that
91: # selects the required hyphenator.
92: #
93: # @param language - the language being selected.
94: # @return string
95: # @retval The LaTeX needed to select the hyphenation appropriate to the language.
96: #
97: sub select_hyphenation {
98: my $language = shift;
99:
100: $language = &Apache::loncommon::latexlanguage($language); # Translate -> latex language.
101:
102: # If there is no latex language there's not much we can do:
103:
104: if ($language) {
105: &require_language($language);
106: my $babel_hyphenation = "\\selectlanguage{$language}";
107:
108: return $babel_hyphenation;
109: } else {
110: return '';
111: }
112: }
113: ##
114: # Selects hyphenation based on the current problem metadata.
115: # This requires that
116: # - There is a language metadata item set for the problem.
117: # - The language has a latex/babel hyphenation.
118: #
119: # @note: Uses &Apache::lonxml::request to locate the Uri associated with
120: # this problem.
121: # @return string (possibly empty).
122: # @retval If not empty an appropriate \selectlanguage{} directive.
123: #
124: sub select_metadata_hyphenation {
125: my $uri = $Apache::lonxml::request->uri;
126: my $language = &Apache::lonnet::metadata($uri, 'language');
127: my $latex_language = &Apache::loncommon::latexhyphenation($language);
128: if ($latex_language) {
129: return '\selectlanguage{'.$latex_language."}\n";
130: }
131: return ''; # no latex hyphenation or no lang metadata.
132: }
133:
134:
135: ##
136: # Clears the set of languages required by the document being rendered.
137: #
138: sub clear_required_languages {
139: %languages_required = ();
140: }
141: ##
142: # Allows an external client of this module to register a need for a language:
143: #
144: # @param LaTeX language required:
145: #
146: sub require_language {
147: my $language = shift;
148: $languages_required{$language} = 1;
149: }
150:
151: ##
152: # Provides the header for babel that indicates the languages
153: # the document requires.
154: # @return string
155: # @retval \usepackage[lang1,lang2...]{babel}
156: # @retval '' if there are no languages_required.
157: sub languages_header {
158: my $header ='';
159: my @languages = (keys(%languages_required));
160:
161: # Only generate the header if there are languages:
162:
163: if (scalar @languages) {
164: my $language_list = join(',', (@languages));
165: $header = '\usepackage['.$language_list."]{babel}\n";
166: }
167: return $header;
168: }
169:
170: #----------------------------------------------------------------------------------
171:
1.10 albertel 172: sub start_web {
1.326 albertel 173: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 174: if ($target ne 'edit' && $target ne 'modified') {
175: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
176: if ($target eq 'web' || $target eq 'webgrade') {
177: return $bodytext;
178: }
179: } elsif ($target eq "edit" ) {
180: my $bodytext =
181: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
182: my $result = &Apache::edit::tag_start($target,$token);
183: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
184: return $result;
185: } elsif ( $target eq "modified" ) {
186: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 187: }
188: return '';
1.10 albertel 189: }
190:
191: sub end_web {
1.44 ng 192: return '';
1.10 albertel 193: }
194:
195: sub start_tex {
1.326 albertel 196: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 197: my $result='';
1.383 albertel 198: if ($target ne 'edit' && $target ne 'modified') {
199: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
200: if ($target eq 'tex') {
1.434 foxr 201:
202: # If inside a table, occurrences of \\ must be removed;
203: # else the table blows up.
204:
205: if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
206: $bodytext =~ s/\\\\//g;
207: }
1.432 foxr 208: return $bodytext.'{}';
1.383 albertel 209: }
210: } elsif ($target eq "edit" ) {
211: my $bodytext =
212: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
213: my $result = &Apache::edit::tag_start($target,$token);
214: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
215: return $result;
216: } elsif ( $target eq "modified" ) {
217: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 218: }
1.198 sakharuk 219: return $result;;
1.10 albertel 220: }
221:
222: sub end_tex {
1.44 ng 223: return '';
1.9 albertel 224: }
225:
1.400 albertel 226: sub homework_js {
1.512.2.9 raeburn 227: my ($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 * $timeout;
271: }
1.400 albertel 272: return &Apache::loncommon::resize_textarea_js().
1.512.2.11 raeburn 273: &Apache::loncommon::colorfuleditor_js().
1.416 raeburn 274: &setmode_javascript().
1.512.2.9 raeburn 275: <<"JS";
1.400 albertel 276: <script type="text/javascript">
1.483 raeburn 277: // <![CDATA[
1.494 raeburn 278: function setSubmittedPart (part,prefix) {
279: if (typeof(prefix) == 'undefined') {
280: this.document.lonhomework.submitted.value="part_"+part;
281: } else {
282: for (var i=0;i<this.document.lonhomework.elements.length;i++) {
283: if (this.document.lonhomework.elements[i].name == prefix+'submitted') {
284: this.document.lonhomework.elements[i].value="part_"+part;
285: }
286: }
287: }
1.400 albertel 288: }
289:
1.512.2.9 raeburn 290: function disableAutoComplete (id) {
291: var field = document.getElementById(id);
292: if (field != null && field != undefined){
293: if ('autocomplete' in field) {
294: field.autocomplete = "off";
295: } else {
296: field.setAttribute("autocomplete", "off");
297: }
298: }
299: }
300:
1.400 albertel 301: function image_response_click (which, e) {
302: init_geometry();
303: if (!e) { e = window.event; } //IE
304: var input_element = document.lonhomework.elements[which];
1.401 albertel 305: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 306: var token = token_element.value;
1.401 albertel 307: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 308: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
309: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
310: var click = x+':'+y;
311: input_element.value = click;
1.485 raeburn 312: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
1.400 albertel 313: }
1.512.2.9 raeburn 314:
315: var submithandled = 0;
316: var keypresshandled = 0;
317: var postsubmit = '$postsubmit';
318:
319: \$(document).ready(function(){
320: if (postsubmit != 'off') {
321: \$(document).keypress(function(event){
322: var keycode = (event.keyCode ? event.keyCode : event.which);
323: if ((keycode == '13') && (keypresshandled == 0)) {
324: if ( \$( document.activeElement ).hasClass("LC_textline") ) {
325: keypresshandled = 1;
326: var idsArray = \$( document.activeElement ).attr("id").split(/HWVAL_/);
327: if (idsArray.length) {
328: event.preventDefault();
329: var itemsArray = idsArray[1].split(/_/);
330: var buttonId = idsArray[0]+'submit_'+itemsArray[0];
331: \$("#"+buttonId).trigger("click");
332: }
333: }
334: }
335: });
336:
337: \$(document).delegate('form :submit', 'click', function( event ) {
338: if ( \$( this ).hasClass( "LC_hwk_submit" ) ) {
339: var buttonId = this.id;
340: var timeout = $jstimeout;
341: if (submithandled == 0) {
342: submithandled = 1;
343: \$( "#msg_"+buttonId ).css({"display": "inline","background-color": "#87cefa",
344: "color": "black","padding": "2px"}) ;
345: if (( \$(this.form).id == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
346: if (buttonId != "all_submit") {
347: \$( ".LC_status_"+buttonId ).hide();
348: if (( "#"+buttonId+"_pressed" ).length) {
349: \$( "#"+buttonId+"_pressed" ).val( "1" );
350: }
351: }
352: } else {
353: \$( ".LC_status_"+buttonId ).hide();
354: }
355: \$(this.form).submit();
356: \$( ".LC_hwk_submit" ).prop( "disabled", true);
357: \$( ".LC_textline" ).prop( "readonly", "readonly");
358: event.preventDefault();
359:
360: if (timeout > 0) {
361: setTimeout(function(){
362: \$( "#msg_"+buttonId ).css({"display": "none"});
363: if (( \$(this.form).id == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
364: if (buttonId != "all_submit") {
365: if (( "#"+buttonId+"_pressed" ).length) {
366: \$( "#"+buttonId+"_pressed" ).val( "" );
367: }
368: }
369: }
370: \$( ".LC_hwk_submit" ).prop( "disabled", false);
371: \$( ".LC_textline" ).prop( "readonly", false);
372: submithandled = 0;
373: keypresshandled = 0;
374: }, timeout);
375: }
376: return true;
377: }
378: }
379: });
380: }
381: });
382:
1.483 raeburn 383: // ]]>
1.400 albertel 384: </script>
385: JS
386: }
387:
1.416 raeburn 388: sub setmode_javascript {
389: return <<"ENDSCRIPT";
390: <script type="text/javascript">
1.485 raeburn 391: // <![CDATA[
1.416 raeburn 392: function setmode(form,probmode) {
1.512.2.13 raeburn 393: var initial = form.problemmode.value;
1.416 raeburn 394: form.problemmode.value = probmode;
395: form.submit();
1.512.2.13 raeburn 396: form.problemmode.value = initial;
1.416 raeburn 397: }
1.485 raeburn 398: // ]]>
1.416 raeburn 399: </script>
400: ENDSCRIPT
401: }
402:
1.48 albertel 403: sub page_start {
1.345 albertel 404: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
405: $extra_head)=@_;
1.159 albertel 406: my %found;
1.207 albertel 407: foreach my $taginside (@$tagstack) {
1.159 albertel 408: foreach my $taglookedfor ('html','body','form') {
409: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
410: }
411: }
412:
1.343 albertel 413: if ($target eq 'tex') {
414: return
415: &Apache::londefdef::start_html($target,$token,$tagstack,
416: $parstack,$parser,$safeeval);
417: }
418:
1.474 raeburn 419: $extra_head .= &homework_js().
420: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
421: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
1.512.2.12 raeburn 422: my %textarea_args;
423: if (($env{'request.state'} ne 'construct') ||
424: ($env{'environment.nocodemirror'})) {
425: %textarea_args = (
1.474 raeburn 426: dragmath => 'math',
427: );
1.512.2.12 raeburn 428: }
1.474 raeburn 429: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 430: }
1.478 raeburn 431: my $is_task = ($env{'request.uri'} =~ /\.task$/);
1.512.2.9 raeburn 432: my ($needs_upload,$partlist);
1.495 raeburn 433: my ($symb)= &Apache::lonnet::whichuser();
434: my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
1.478 raeburn 435: if ($is_task) {
1.495 raeburn 436: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
1.493 raeburn 437: } else {
438: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.uploadedfiletypes") ne '') {
1.495 raeburn 439: unless ($env{'request.state'} eq 'construct') {
440: my $navmap = Apache::lonnavmaps::navmap->new();
441: if (ref($navmap)) {
442: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 443: my $is_page;
444: if (ref($mapres)) {
445: $is_page = $mapres->is_page();
446: }
447: unless ($is_page) {
1.495 raeburn 448: $needs_upload = 1;
449: }
1.512.2.9 raeburn 450: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
451: my $res = $navmap->getBySymb($symb);
452: if (ref($res)) {
453: $partlist = $res->parts();
454: }
455: }
1.495 raeburn 456: }
457: }
1.493 raeburn 458: } else {
459: unless ($env{'request.state'} eq 'construct') {
460: my $navmap = Apache::lonnavmaps::navmap->new();
461: if (ref($navmap)) {
1.495 raeburn 462: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 463: my $is_page;
464: if (ref($mapres)) {
465: $is_page = $mapres->is_page();
466: }
1.512.2.9 raeburn 467: if ($is_page) {
468: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
469: my $res = $navmap->getBySymb($symb);
470: if (ref($res)) {
471: $partlist = $res->parts();
472: }
473: }
474: } else {
1.495 raeburn 475: my $res = $navmap->getBySymb($symb);
476: if (ref($res)) {
1.512.2.9 raeburn 477: $partlist = $res->parts();
1.495 raeburn 478: if (ref($partlist) eq 'ARRAY') {
479: foreach my $part (@{$partlist}) {
480: my @types = $res->responseType($part);
481: my @ids = $res->responseIds($part);
482: for (my $i=0; $i < scalar(@ids); $i++) {
483: if ($types[$i] eq 'essay') {
484: my $partid = $part.'_'.$ids[$i];
485: if (&Apache::lonnet::EXT("resource.$partid.uploadedfiletypes") ne '') {
486: $needs_upload = 1;
487: last;
488: }
1.493 raeburn 489: }
490: }
491: }
1.495 raeburn 492: }
493: }
1.493 raeburn 494: }
495: }
496: }
497: }
1.495 raeburn 498: if ($needs_upload) {
1.512.2.17! raeburn 499: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js().
! 500: '<script type="text/javascript" '.
! 501: 'src="/res/adm/includes/file_upload.js"></script>';
1.495 raeburn 502: }
1.478 raeburn 503: }
1.425 raeburn 504:
1.344 albertel 505: my %body_args;
506: if (defined($found{'html'})) {
507: $body_args{'skip_phases'}{'head'}=1;
508: } else {
1.343 albertel 509:
1.345 albertel 510: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 511:
1.379 albertel 512: $extra_head .= &Apache::londefdef::generate_css_links();
513:
1.384 albertel 514: if ($env{'request.state'} eq 'construct') {
1.343 albertel 515: $extra_head.=&Apache::edit::js_change_detection().
516: "<script type=\"text/javascript\">\n".
517: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
518: &Apache::loncommon::browser_and_searcher_javascript().
519: "\n</script>\n";
1.512.2.9 raeburn 520: if ($target eq 'edit') {
521: $extra_head .= &Apache::edit::js_update_linknum();
522: }
1.343 albertel 523: }
1.159 albertel 524: }
1.343 albertel 525:
1.446 bisitz 526: my $pageheader = '';
1.344 albertel 527: if (defined($found{'body'})) {
528: $body_args{'skip_phases'}{'body'}=1;
529: } elsif (!defined($found{'body'})
530: && $env{'request.state'} eq 'construct') {
1.343 albertel 531: if ($target eq 'web' || $target eq 'edit') {
1.512.2.3 raeburn 532: # Breadcrumbs for Authoring Space
1.450 bisitz 533: &Apache::lonhtmlcommon::clear_breadcrumbs();
534: &Apache::lonhtmlcommon::add_breadcrumb({
1.512.2.3 raeburn 535: 'text' => 'Authoring Space',
1.497 raeburn 536: 'href' => &Apache::loncommon::authorspace($env{'request.uri'}),
1.450 bisitz 537: });
1.460 droeschl 538: # breadcrumbs (and tools) will be created
539: # in start_page->bodytag->innerregister
540:
1.450 bisitz 541: # FIXME Where are we?
542: # &Apache::lonhtmlcommon::add_breadcrumb({
543: # 'text' => 'Problem Editing', # 'Problem Testing'
544: # 'href' => '',
545: # });
1.460 droeschl 546: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 547: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 548: }
1.272 albertel 549: } elsif (!defined($found{'body'})) {
1.343 albertel 550: my %add_entries;
1.159 albertel 551: my $background=&Apache::lonxml::get_param('background',$parstack,
552: $safeeval);
1.343 albertel 553: if ($background ne '' ) {
554: $add_entries{'background'} = $background;
555: }
1.344 albertel 556:
1.290 albertel 557: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
558: $safeeval);
1.446 bisitz 559: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 560:
1.446 bisitz 561: $body_args{'bgcolor'} = $bgcolor;
562: # $body_args{'no_title'} = 1;
563: $body_args{'force_register'} = 1;
564: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 565: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 566: $body_args{'only_body'} = 1;
1.512.2.7 raeburn 567: } elsif ($target eq 'web') {
568: $body_args{'print_suppress'} = 1;
1.446 bisitz 569: }
1.344 albertel 570: }
1.365 albertel 571: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 572: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
573: \%body_args);
1.446 bisitz 574: $page_start .= $pageheader;
1.462 raeburn 575: if (!defined($found{'body'})
576: && $env{'request.state'} ne 'construct'
577: && ($target eq 'web' || $target eq 'webgrade')) {
578:
579: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
580: if ($symb eq '' && !$publicuser) {
581: $page_start .= '<p class="LC_info">'
582: .&mt('Browsing resource, all submissions are temporary.')
583: .'</p>';
1.457 bisitz 584: }
1.344 albertel 585: }
586:
1.409 albertel 587: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 588: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 589: }
590: my $form_tag_start;
591: if (!defined($found{'form'})) {
1.337 albertel 592: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 593: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 594: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 595: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 596: $form_tag_start.=$uri.'" ';
597: if ($target eq 'edit') {
598: $form_tag_start.=&Apache::edit::form_change_detection();
599: }
1.493 raeburn 600: my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
601: my ($path,$multiresp) =
602: &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
1.495 raeburn 603: if (($is_task) || ($needs_upload)) {
604: $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
1.478 raeburn 605: }
1.368 albertel 606: $form_tag_start.='>'."\n";
1.355 albertel 607:
608: if ($symb =~ /\S/) {
609: $symb=
610: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
611: $form_tag_start.=
1.368 albertel 612: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 613: }
1.159 albertel 614: }
1.512.2.9 raeburn 615: return ($page_start,$form_tag_start,$partlist);
1.105 albertel 616: }
617:
1.141 matthew 618: #use Time::HiRes();
1.105 albertel 619: sub get_resource_name {
1.159 albertel 620: my ($parstack,$safeeval)=@_;
1.388 foxr 621: my $name;
1.204 albertel 622: if (defined($Apache::lonhomework::name)) {
1.388 foxr 623: $name = $Apache::lonhomework::name;
624: } else {
625: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 626: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 627: if ($name eq '') {
628: $name=&Apache::lonnet::EXT('resource.title');
629: if ($name eq 'con_lost') { $name = ''; }
630: }
631: if ($name!~/\S+/) {
632: $name=$env{'request.uri'};
633: $name=~s-.*/([^/]+)$-$1-;
634: }
635: # The name has had html tags escaped:
636:
637: $name=~s/</</gs;
638: $name=~s/>/>/gs;
639:
640: $Apache::lonhomework::name=$name;
1.204 albertel 641: }
1.159 albertel 642: return $name;
1.105 albertel 643: }
644:
645: sub setup_rndseed {
1.512.2.9 raeburn 646: my ($safeeval,$target,$probpartlist)=@_;
1.367 albertel 647: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 648: my ($questiontype,$set_safespace,$rndseed);
649: if ($target eq 'analyze') {
650: $questiontype = $env{'form.grade_questiontype'};
651: }
652: unless (defined($questiontype)) {
653: $questiontype = $Apache::lonhomework::type;
654: }
1.512.2.14 raeburn 655: if (($env{'request.state'} eq "construct")
656: || ($symb eq '')
657: || ($Apache::lonhomework::type eq 'practice')
658: || ($Apache::lonhomework::history{'resource.CODE'})
659: || (($env{'form.code_for_randomlist'}) && ($target eq 'analyze'))) {
1.316 www 660: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 661: ['rndseed']);
1.284 albertel 662: $rndseed=$env{'form.rndseed'};
1.159 albertel 663: if (!$rndseed) {
1.162 albertel 664: $rndseed=$Apache::lonhomework::history{'rndseed'};
665: if (!$rndseed) {
666: $rndseed=time;
667: }
1.512.2.14 raeburn 668: unless ($env{'form.code_for_randomlist'}) {
669: $env{'form.rndseed'}=$rndseed;
670: }
1.162 albertel 671: }
1.479 raeburn 672: if (($env{'request.state'} eq "construct") &&
673: ($Apache::lonhomework::type eq 'randomizetry')) {
674: my $tries = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
675: if ($tries) {
676: $rndseed += $tries;
677: }
1.480 raeburn 678: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 679: }
1.374 albertel 680: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
681: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 682: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 683: srand(time);
684: $rndseed=int(rand(2100000000));
1.284 albertel 685: $env{'form.rndseed'}=$rndseed;
686: delete($env{'form.resetdata'});
687: delete($env{'form.newrandomization'});
1.159 albertel 688: }
1.488 www 689: $rndseed=~s/\,/\:/g;
690: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 691: if (defined($rndseed)) {
692: my ($c1,$c2)=split(/\:/,$rndseed);
693: unless ($c2) { $c2=0; }
694: unless (($c1==int($c1)) && ($c2==int($c2))) {
695: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
696: }
1.187 albertel 697: }
1.512.2.14 raeburn 698: if (($env{'form.code_for_randomlist'}) && ($target eq 'analyze')) {
699: $env{'form.CODE'} = $env{'form.code_for_randomlist'};
700: $rndseed=&Apache::lonnet::rndseed();
701: undef($env{'form.CODE'});
702: } elsif ($Apache::lonhomework::history{'resource.CODE'}) {
1.247 albertel 703: $rndseed=&Apache::lonnet::rndseed();
704: }
1.479 raeburn 705: $set_safespace = 1;
706: } elsif ($questiontype eq 'randomizetry') {
707: if ($target eq 'analyze') {
708: if (defined($env{'form.grade_rndseed'})) {
709: $rndseed = $env{'form.grade_rndseed'};
710: }
711: }
712: unless (($target eq 'analyze') && (defined($rndseed))) {
713: $rndseed=&Apache::lonnet::rndseed();
1.512.2.9 raeburn 714: my $partfortries = $Apache::inputtags::part;
715: if (ref($probpartlist) eq 'ARRAY') {
716: if ((@{$probpartlist} == 1) && ($probpartlist->[0] ne $Apache::inputtags::part)) {
717: $partfortries = $probpartlist->[0];
718: }
719: }
720: my $curr_try = $Apache::lonhomework::history{"resource.$partfortries.tries"};
1.479 raeburn 721: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
722: $curr_try ++;
723: }
724: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
725: $rndseed = $1;
726: }
727: if ($curr_try) {
1.512.2.9 raeburn 728: my $reqtries = &Apache::lonnet::EXT("resource.$partfortries.randomizeontries");
1.479 raeburn 729: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
730: my $inc = int(($curr_try-1)/$reqtries);
731: $rndseed += $inc;
732: } else {
733: $rndseed += $curr_try;
734: }
735: }
736: }
737: $set_safespace = 1;
1.512.2.9 raeburn 738: if ($target eq 'grade') {
739: $Apache::lonhomework::rawrndseed = $rndseed;
740: }
1.479 raeburn 741: }
742: if ($set_safespace) {
743: if ($safeeval) {
744: &Apache::lonxml::debug("Setting rndseed to $rndseed");
745: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
746: }
747: }
748: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
749: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 750: }
751: return $rndseed;
1.105 albertel 752: }
753:
1.268 albertel 754: sub remember_problem_state {
755: return '
1.284 albertel 756: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
757: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
758: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 759: }
760:
1.487 www 761: sub problem_edit_action_button {
762: my ($name,$action,$accesskey,$text,$flag)=@_;
763: my $actionscript="setmode(this.form,'$action')";
764: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
765: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
766: }
767:
1.423 www 768: sub problem_edit_buttons {
1.487 www 769: my ($mode)=@_;
1.512.2.11 raeburn 770: # Buttons that save
771: my $result = '<div style="float:right">';
772: if ($mode eq 'editxml') {
773: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
774: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
775: } else {
776: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
777: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
778: }
779: $result.="\n</div>\n";
1.487 www 780: # Buttons that do not save
1.512.2.11 raeburn 781: $result .= '<div>'.
1.487 www 782: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
783: if ($mode eq 'editxml') {
784: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
785: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
1.512.2.11 raeburn 786: if ($env{'environment.nocodemirror'}) {
787: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
788: }
1.487 www 789: } else {
790: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
791: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
792: }
793: $result.="\n</div>";
794: return $result;
1.423 www 795: }
796:
797: sub problem_edit_header {
1.512.2.11 raeburn 798: my ($mode)=@_;
799: my $return = '<input type="hidden" name="submitted" value="edit" />'.
1.487 www 800: &remember_problem_state('edit').'
1.512.2.11 raeburn 801: <div class="LC_edit_problem_header">
802: <div class="LC_edit_problem_header_title">
803: '.&mt('Problem Editing').$mode.&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
804: </div><div class="LC_edit_actionbar" id="actionbar">'.
805: '<input type="hidden" name="problemmode" value="saveedit" />'.
806: &problem_edit_buttons();
807:
808: $return .= '</div></div>' . &Apache::lonxml::message_location();
809: $return .= '<link rel="stylesheet" href="/adm/codemirror/codemirror-combined.css" />
810: <script type="text/javascript" src="/adm/codemirror/codemirror-compressed-colorful.js"></script>';
811:
812: $return .= '<script type="text/javascript" src="/adm/jQuery/addons/jquery-scrolltofixed.js"></script>
813: <script type="text/javascript">
814: // unless internet explorer
815: if (!(window.navigator.appName == "Microsoft Internet Explorer" && (document.documentMode || document.compatMode))){
816: $(document).ready(
817: function() {
818: $(\'.LC_edit_actionbar\').scrollToFixed(
819: {
820: fixed: function(){
821: //$(this).find(\'.LC_edit_actionbar\').css(\'height\', \'31px\');
822: $(this).find(\'.LC_edit_actionbar\');
823: }
824: }
825: );
826: }
827: );
828: }
829: </script>
830: <table id="LC_edit_problem_colorful" border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
831: return $return;
1.105 albertel 832: }
833:
1.512.2.11 raeburn 834:
1.105 albertel 835: sub problem_edit_footer {
1.512.2.11 raeburn 836: my $resource = $env{'request.ambiguous'};
1.412 albertel 837: return '</td></tr></table><br />
838: <div class="LC_edit_problem_footer">
1.453 bisitz 839: <hr />'.
1.423 www 840: &problem_edit_buttons().'
1.459 bisitz 841: <hr style="clear:both;" />
1.512.2.11 raeburn 842: <script type="text/javascript">
843: restoreState("'.$resource.'");
844: restoreScrollPosition("'.$resource.'");
845: </script>
1.412 albertel 846: </div>
847: '.
1.342 albertel 848: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 849: }
850:
1.235 albertel 851: sub option {
852: my ($value,$name) = @_;
853: my $result ="<option value='".$value."' ";
1.284 albertel 854: if ($env{'form.'.$name} eq $value) {
1.235 albertel 855: $result.=" selected='on' ";
856: }
857: $result.='>';
858: return $result;
859: }
860:
1.105 albertel 861: sub problem_web_to_edit_header {
1.159 albertel 862: my ($rndseed)=@_;
1.406 albertel 863: my $result .= '<div class="LC_edit_problem_header">';
864:
865: if (!$Apache::lonhomework::parsing_a_task) {
866: $result .=
867: '<div class="LC_edit_problem_header_title">'.
868: &mt('Problem Testing').
869: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
870: '</div>';
871: } else {
872: $result .=
873: '<div class="LC_edit_problem_header_title">'.
874: &mt('Task Testing').
875: '</div>';
876: }
877:
1.315 albertel 878: my $show_all_foils_text =
879: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 880: &mt('Show All Instances')
881: : &mt('Show All Foils');
1.315 albertel 882:
1.452 bisitz 883: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
884: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 885: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 886: $show_all.= ' /> '.$show_all_foils_text
887: .'</label></span>';
1.406 albertel 888:
889:
1.384 albertel 890:
1.406 albertel 891: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 892: if (!$Apache::lonhomework::parsing_a_task) {
893: $result.="
1.406 albertel 894: <div class='LC_edit_problem_header_row1'>
895: <span class=\"LC_nobreak\">
1.405 albertel 896: ".&mt("Problem Status:")."
1.235 albertel 897: <select name='problemstate'>
1.270 albertel 898: <option value=''></option>
1.235 albertel 899: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
900: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
901: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
902: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
903: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
904: </select>
1.406 albertel 905: </span>
906: <span class=\"LC_nobreak\">
1.405 albertel 907: ".&mt("Problem Type:")."
1.235 albertel 908: <select name='problemtype'>
1.270 albertel 909: <option value=''></option>
1.512.2.1 raeburn 910: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 911: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 912: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 913: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
914: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
915: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 916: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 917: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 918: </select>
1.406 albertel 919: </span>
920: $show_all
921: </div>
922: <div class='LC_edit_problem_header_row2'>
923: <span class=\"LC_nobreak\">
1.405 albertel 924: ".&mt("Feedback Mode:")."
1.235 albertel 925: <select name='problemstatus'>
926: <option value=''></option>
1.242 albertel 927: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.512.2.6 raeburn 928: ".&option('no', 'problemstatus').&mt("Don't Show Incorrect/Correct Feedback")."</option>
1.405 albertel 929: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 930: </select>
1.406 albertel 931: </span>
932: ";
933:
1.376 albertel 934: } elsif ($Apache::lonhomework::parsing_a_task) {
935: $result.="
1.406 albertel 936: <div class='LC_edit_problem_header_row1'>
937: <span class=\"LC_nobreak\">
1.405 albertel 938: ".&mt("Problem Status:")."
1.376 albertel 939: <select name='problemstate'>
940: <option value=''></option>
941: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
942: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
943: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
944: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
945: </select>
1.406 albertel 946: </span>
947: $show_all
948: ";
949: }
950: $result.='
951: <span class="LC_nobreak">
952: '.&mt('Apply style file: ').'
953: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
954: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
955: </span>
1.422 www 956: </div>
957: <div class="LC_edit_problem_header_row1">'.
958: &Apache::lonxml::renderingoptions().'
1.406 albertel 959: </div>
960: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
961: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
962: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
963: </div>
1.453 bisitz 964: <hr />
1.406 albertel 965: <div class="LC_edit_problem_header_randomize_row">
966: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
967: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 968: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 969: $rndseed.'"
970: onchange="javascript:document.lonhomework.changerandseed.click()" />';
971:
972: if (!$Apache::lonhomework::parsing_a_task) {
973: my $numtoanalyze=$env{'form.numtoanalyze'};
974: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 975: $result .= '<span class="LC_nobreak">'.
976: &mt('[_1] for [_2] versions.',
1.416 raeburn 977: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 978: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
979: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 980: $numtoanalyze.'" size="5" />').
981: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
982: '</span>';
983:
1.313 albertel 984: }
1.406 albertel 985:
986: $result.='
987: </div>
1.453 bisitz 988: <hr />
1.447 bisitz 989: <div>';
1.416 raeburn 990: $result.='<input type="hidden" name="problemmode" value="view" />';
991: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
992: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
993: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
994: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 995: $result.='
996: </div>
1.453 bisitz 997: <hr />
1.409 albertel 998: '.&Apache::lonxml::message_location().'
1.406 albertel 999: </div>';
1.159 albertel 1000: return $result;
1.48 albertel 1001: }
1002:
1.65 albertel 1003: sub initialize_storage {
1.357 albertel 1004: my ($given_symb) = @_;
1.353 albertel 1005: undef(%Apache::lonhomework::results);
1006: undef(%Apache::lonhomework::history);
1.357 albertel 1007: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1008: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 1009:
1010: # anonymous users (CODEd exams) have no data
1011: if ($name eq 'anonymous'
1012: && !defined($domain)) {
1013: return;
1014: }
1015:
1.333 albertel 1016: if ($env{'request.state'} eq 'construct'
1017: || $symb eq ''
1018: || $Apache::lonhomework::type eq 'practice') {
1019:
1020: my $namespace = $symb || $env{'request.uri'};
1021: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 1022: ($env{'form.resetdata'} eq &mt('New Problem Variation')
1023: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 1024: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1025: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
1026: &Apache::lonxml::debug("Attempt reset");
1027: }
1.159 albertel 1028: %Apache::lonhomework::history=
1.333 albertel 1029: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.512.2.9 raeburn 1030: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1031: &Apache::lonxml::debug("Return message of $temp");
1032: } else {
1033: %Apache::lonhomework::history=
1034: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1035: }
1.353 albertel 1036:
1.159 albertel 1037: #ignore error conditions
1.512.2.9 raeburn 1038: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1039: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 1040: }
1041:
1.435 jms 1042: =pod
1043:
1044: =item finalize_storage()
1045:
1.512.2.9 raeburn 1046: Stores away the result hash to a student's environment;
1047: checks form.grade_ for specific values, otherwise stores
1048: to the running user's environment.
1049:
1050: &check_correctness_changes() is called in two circumstances
1051: in which the results hash is to be stored permanently, for
1052: grading triggered by a student's submission, where feedback on
1053: correctness is to be provided to the student.
1054:
1055: 1. Immediately prior to storing the results hash
1056:
1057: To handle the case where a student's submission (and award) were
1058: stored after history was retrieved in &initialize_storage(), e.g.,
1059: if a student submitted answers in quick succession (e.g., from
1060: multiple tabs). &Apache::inputtags::hidealldata() is called for
1061: any parts with out-of-order storage (i.e., correct then incorrect,
1062: where awarded >= 1 when correct).
1063:
1064: 2. Immediately after storing the results hash
1065:
1066: To handle the case where lond on the student's homeserver returns
1067: delay:N -- where N is the number of transactions between the last
1068: retrieved in &initialize_storage() and the last stored immediately
1069: before permanent storage of the current transaction via
1070: lond::store_handler(). &Apache::grades::makehidden() is called
1071: for any parts with out-of-order storage (i.e., correct then incorrect,
1072: where awarded >= 1 when correct).
1073:
1074: Will call &store_aggregates() to increment totals for attempts,
1075: students, and corrects, if running user has student role.
1.435 jms 1076:
1077: =cut
1078:
1079:
1.65 albertel 1080: sub finalize_storage {
1.357 albertel 1081: my ($given_symb) = @_;
1.159 albertel 1082: my $result;
1.289 albertel 1083: if (%Apache::lonhomework::results) {
1.323 albertel 1084: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
1085: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 1086: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1087: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 1088: if ($env{'request.state'} eq 'construct'
1089: || $symb eq ''
1090: || $Apache::lonhomework::type eq 'practice') {
1091: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 1092: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 1093: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 1094: $namespace,'',$domain,$name);
1.159 albertel 1095: &Apache::lonxml::debug('Construct Store return message:'.$result);
1096: } else {
1.512.2.9 raeburn 1097: my ($laststore,$checkedparts,@parts,%postcorrect);
1098: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1099: (!$Apache::lonhomework::scantronmode) && (!defined($env{'form.grade_symb'})) &&
1100: (!defined($env{'form.grade_courseid'}))) {
1101: if ($Apache::lonhomework::history{'version'}) {
1102: $laststore = $Apache::lonhomework::history{'version'}.'='.
1103: $Apache::lonhomework::history{'timestamp'};
1104: } else {
1105: $laststore = '0=0';
1106: }
1107: my %record = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1108: if ($record{'version'}) {
1109: my ($newversion,$oldversion,$oldtimestamp);
1110: if ($Apache::lonhomework::history{'version'}) {
1111: $oldversion = $Apache::lonhomework::history{'version'};
1112: $oldtimestamp = $Apache::lonhomework::history{'timestamp'};
1113: } else {
1114: $oldversion = 0;
1115: $oldtimestamp = 0;
1116: }
1117: if ($record{'version'} > $oldversion) {
1118: if ($record{'timestamp'} >= $oldtimestamp) {
1119: $laststore = $record{'version'}.'='.$record{'timestamp'};
1120: $newversion = $record{'version'} + 1;
1121: $checkedparts = 1;
1122: foreach my $key (keys(%Apache::lonhomework::results)) {
1123: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1124: my $part = $1;
1125: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1126: push(@parts,$part);
1127: }
1128: }
1129: }
1130: if (@parts) {
1131: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1132: \%record,\@parts,$newversion,
1133: $oldversion);
1134: if (@parts_to_hide) {
1135: foreach my $part (@parts_to_hide) {
1136: $postcorrect{$part} = 1;
1137: &Apache::inputtags::hidealldata($part);
1138: }
1139: }
1140: }
1141: }
1142: }
1143: }
1144: }
1.159 albertel 1145: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
1.512.2.9 raeburn 1146: $symb,$courseid,$domain,$name,$laststore);
1147: if ($result =~ /^delay\:(\d+)$/) {
1148: my $numtrans = $1;
1149: my ($oldversion) = split(/=/,$laststore);
1150: if ($numtrans) {
1151: my $newversion = $oldversion + 1 + $numtrans;
1152: my @possparts;
1153: if ($checkedparts) {
1154: foreach my $part (@parts) {
1155: unless ($postcorrect{$part}) {
1156: push(@possparts,$part);
1157: }
1158: }
1159: } else {
1160: foreach my $key (keys(%Apache::lonhomework::results)) {
1161: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1162: my $part = $1;
1163: unless ($postcorrect{$part}) {
1164: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1165: push(@possparts,$part);
1166: }
1167: }
1168: }
1169: }
1170: }
1171: if (@possparts) {
1172: my %newrecord = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1173: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1174: \%newrecord,\@possparts,$newversion,
1175: $oldversion);
1176: if (@parts_to_hide) {
1177: my $partslist = join(',',@parts_to_hide);
1178: &Apache::grades::makehidden($newversion,$partslist,\%newrecord,$symb,$domain,$name,1);
1179: }
1180: }
1181: }
1182: }
1.159 albertel 1183: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 1184: &store_aggregates($symb,$courseid);
1.159 albertel 1185: }
1.323 albertel 1186: } else {
1187: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 1188: }
1.159 albertel 1189: return $result;
1.65 albertel 1190: }
1191:
1.435 jms 1192: =pod
1193:
1.512.2.9 raeburn 1194: =item check_correctness_changes()
1195:
1196: For all parts for which current results contain a solved status
1197: of "incorrect_attempted", check if there was a transaction in which
1198: solved was set to "correct_by_student" in the time since the last
1199: transaction (retrieved when &initialize_storage() was called i.e.,
1200: when &start_problem() was called), unless:
1201: (a) questiontype parameter is set to survey or anonymous survey (+/- credit)
1202: (b) problemstatus is set to no or no_feedback_ever
1203: If such a transaction exists, and did not occur after "reset status"
1204: by a user with grading privileges, then the current transaction is an
1205: example of an out-of-order transaction (i.e., incorrect occurring after
1206: correct). Accordingly, the current transaction should be hidden.
1207:
1208: =cut
1209:
1210:
1211: sub check_correctness_changes {
1212: my ($symb,$courseid,$domain,$name,$record,$parts,$newversion,$oldversion) = @_;
1213: my @parts_to_hide;
1214: unless ((ref($record) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
1215: return @parts_to_hide;
1216: }
1217: if (@{$parts}) {
1218: my $usec;
1219: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1220: ($env{'request.course.id'} eq $courseid)) {
1221: $usec = $env{'request.course.sec'};
1222: } else {
1223: $usec = &Apache::lonnet::getsection($domain,$name,$courseid);
1224: }
1225: foreach my $id (@{$parts}) {
1226: next if (($Apache::lonhomework::results{'resource.'.$id.'.type'} =~ /survey/) ||
1227: (&Apache::lonnet::EXT("resource.$id.problemstatus",$symb,
1228: $domain,$name,$usec,undef,$courseid) =~ /^no/));
1229: my $reset;
1230: for (my $i=$newversion-1; $i>=$oldversion; $i--) {
1231: if (($record->{$i.':resource.'.$id.'.regrader'}) &&
1232: ($record->{$i.':resource.'.$id.'.tries'} eq '') &&
1233: ($record->{$i.':resource.'.$id.'.award'} eq '')) {
1234: $reset = 1;
1235: } elsif (($record->{$i.":resource.$id.solved"} eq 'correct_by_student') &&
1236: ($record->{$i.":resource.$id.awarded"} >= 1)) {
1237: unless ($reset) {
1238: push(@parts_to_hide,$id);
1239: last;
1240: }
1241: }
1242: }
1243: }
1244: }
1245: return @parts_to_hide;
1246: }
1247:
1248: =pod
1249:
1.435 jms 1250: item store_aggregates()
1251:
1252: Sends hash of values to be incremented in nohist_resourcetracker.db
1253: for the course. Increments total number of attempts, unique students
1254: and corrects for each part for an instance of a problem, as appropriate.
1255:
1256: =cut
1257:
1.285 raeburn 1258: sub store_aggregates {
1259: my ($symb,$courseid) = @_;
1.479 raeburn 1260: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 1261: my @parts;
1.288 albertel 1262: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
1263: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 1264: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 1265: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 1266: push(@parts, $1);
1.285 raeburn 1267: }
1268: }
1.286 albertel 1269: foreach my $part (@parts) {
1.470 raeburn 1270: if ($env{'request.role'} =~/^st/) {
1271: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
1272: eq 'APPROX_ANS' ||
1273: $Apache::lonhomework::results{'resource.'.$part.'.award'}
1274: eq 'EXACT_ANS') {
1275: $aggregate{$symb."\0".$part."\0correct"} = 1;
1276: }
1277: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1278: $aggregate{$symb."\0".$part."\0users"} = 1;
1279: } else {
1280: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1281: if ($last_reset) {
1282: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1283: $aggregate{$symb."\0".$part."\0users"} = 1;
1284: }
1285: }
1286: }
1287: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 1288: }
1.470 raeburn 1289: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 1290: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
1291: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
1292: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
1293: $randtrycounter{$symb."\0".$part} = 1;
1294: } else {
1295: $anoncounter{$symb."\0".$part} = 1;
1296: }
1.470 raeburn 1297: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
1298: if ($needsrelease) {
1299: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
1300: if ($curr_required eq '') {
1.471 raeburn 1301: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1302: } else {
1303: my ($currmajor,$currminor) = split(/\./,$curr_required);
1304: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
1305: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 1306: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1307: }
1.292 raeburn 1308: }
1309: }
1.285 raeburn 1310: }
1311: }
1.512.2.9 raeburn 1312: if (keys(%aggregate) > 0) {
1.289 albertel 1313: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 1314: $cdomain,$cname);
1315: }
1.472 raeburn 1316: if (keys(%anoncounter) > 0) {
1.481 raeburn 1317: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
1318: $cdomain,$cname);
1.472 raeburn 1319: }
1.479 raeburn 1320: if (keys(%randtrycounter) > 0) {
1.481 raeburn 1321: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
1322: $cdomain,$cname);
1.479 raeburn 1323: }
1.292 raeburn 1324: }
1.289 albertel 1325:
1.65 albertel 1326: sub checkout_msg {
1.211 albertel 1327: my %lt=&Apache::lonlocal::texthash(
1328: 'resource'=>'The resource needs to be checked out',
1329: '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.',
1330: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
1.512.2.1 raeburn 1331: 'checkout'=>'Check out Exam for Viewing',
1332: 'checkout?'=>'Check out Exam?');
1.352 albertel 1333: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 1334: return (<<ENDCHECKOUT);
1.211 albertel 1335: <h2>$lt{'resource'}</h2>
1336: <p>$lt{'id_expln'}</p>
1.449 bisitz 1337: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 1338: <form name="checkout" method="post" action="$uri">
1.91 albertel 1339: <input type="hidden" name="doescheckout" value="yes" />
1.512.2.4 raeburn 1340: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onclick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 1341: </form>
1342: ENDCHECKOUT
1343: }
1344:
1.252 albertel 1345: sub firstaccess_msg {
1.253 albertel 1346: my ($time,$symb)=@_;
1.414 albertel 1347: my $result;
1348: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1349: if ($interval[1] eq 'map') {
1350: my ($map)=&Apache::lonnet::decode_symb($symb);
1351: my $foldertitle=&Apache::lonnet::gettitle($map);
1352:
1353: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 1354: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
1355: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1356: ,$foldertitle,$time)."</p>";
1.414 albertel 1357: } elsif ($interval[1] eq 'course') {
1358: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 1359: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 1360: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 1361: ,$course,$time)."</p>";
1.414 albertel 1362: } else {
1363: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1364: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1365: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1366: ,$title,$time)."</p>";
1.414 albertel 1367: }
1.352 albertel 1368: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1369: my $buttontext = &mt('Show Resource');
1370: my $timertext = &mt('Start Timer?');
1.414 albertel 1371: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1372: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1373: <input type="hidden" name="markaccess" value="yes" />
1.512.2.4 raeburn 1374: <input type="button" name="accessbutton" value="$buttontext" onclick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1375: </form>
1376: ENDCHECKOUT
1.414 albertel 1377: return $result;
1.252 albertel 1378: }
1379:
1.204 albertel 1380: sub init_problem_globals {
1381: my ($type)=@_;
1382: #initialize globals
1.308 foxr 1383: # For problems, we start out in part 0 (outside a <part> tag).
1384: # and part 0 is used to describe the main body of the <problem>
1385: #
1.204 albertel 1386: if ($type eq 'problem') {
1387: $Apache::inputtags::part='0';
1388: @Apache::inputtags::partlist=('0');
1.405 albertel 1389: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1390: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1391:
1.266 albertel 1392: } elsif ($type eq 'library') {
1.204 albertel 1393: $Apache::inputtags::part='';
1394: @Apache::inputtags::partlist=();
1.405 albertel 1395: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1396: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1397:
1.304 albertel 1398: } elsif ($type eq 'Task') {
1399: $Apache::inputtags::part='0';
1400: @Apache::inputtags::partlist=('0');
1.405 albertel 1401: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1402: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1403: }
1.477 www 1404: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1405: @Apache::inputtags::responselist = ();
1406: @Apache::inputtags::importlist = ();
1407: @Apache::inputtags::previous=();
1408: @Apache::inputtags::previous_version=();
1.512.2.10 raeburn 1409: $Apache::inputtags::leniency='';
1.204 albertel 1410: $Apache::structuretags::printanswer='No';
1411: @Apache::structuretags::whileconds=();
1412: @Apache::structuretags::whilebody=();
1413: @Apache::structuretags::whileline=();
1414: $Apache::lonhomework::scantronmode=0;
1415: undef($Apache::lonhomework::name);
1.358 albertel 1416: undef($Apache::lonhomework::default_type);
1417: undef($Apache::lonhomework::type);
1.204 albertel 1418: }
1419:
1420: sub reset_problem_globals {
1421: my ($type)=@_;
1422: undef(%Apache::lonhomework::history);
1423: undef(%Apache::lonhomework::results);
1424: undef($Apache::inputtags::part);
1.512.2.10 raeburn 1425: undef($Apache::inputtags::leniency);
1.498 raeburn 1426: if ($type eq 'Task') {
1427: undef($Apache::inputtags::slot_name);
1.512.2.9 raeburn 1428: } elsif ($type eq 'problem') {
1429: undef($Apache::lonhomework::rawrndseed);
1.498 raeburn 1430: }
1.208 albertel 1431: #don't undef this, lonhomework.pm takes care of this, we use this to
1432: #detect if we try to do 2 problems in one file
1433: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1434: undef($Apache::lonhomework::name);
1.358 albertel 1435: undef($Apache::lonhomework::default_type);
1436: undef($Apache::lonhomework::type);
1437: undef($Apache::lonhomework::scantronmode);
1438: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1439: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1440: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1441: }
1442:
1.241 albertel 1443: sub set_problem_state {
1.240 albertel 1444: my ($part)=@_;
1.284 albertel 1445: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1446: $Apache::lonhomework::history{"resource.$part.solved"}=
1447: 'correct_by_student';
1448: }
1449: }
1450:
1.241 albertel 1451: sub get_problem_status {
1452: my ($part)=@_;
1.267 albertel 1453: my $problem_status;
1.284 albertel 1454: if ($env{'request.state'} eq 'construct' &&
1455: defined($env{'form.problemstatus'})) {
1456: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1457: } else {
1458: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1459: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1460: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1461: }
1462: return $problem_status;
1463: }
1464:
1.9 albertel 1465: sub start_problem {
1.326 albertel 1466: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1467:
1.311 foxr 1468: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1469: if (!$Apache::lonxml::metamode) {
1470: &Apache::lonxml::startredirection();
1471: }
1.311 foxr 1472:
1.308 foxr 1473: # Problems don't nest and we don't allow more than one <problem> in
1474: # a .problem file.
1475: #
1.184 albertel 1476: if ( $Apache::inputtags::part ne '' ||
1477: $Apache::lonhomework::parsing_a_problem) {
1478: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1479: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1480: return '';
1481: }
1.184 albertel 1482:
1483: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1484: &init_problem_globals('problem');
1.166 albertel 1485:
1.284 albertel 1486: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1487: $Apache::lonhomework::scantronmode=1;
1488: }
1.161 albertel 1489:
1.159 albertel 1490: if ($target ne 'analyze') {
1.415 raeburn 1491: my $type = &Apache::lonnet::EXT('resource.0.type');
1492: $Apache::lonhomework::type=$type;
1.284 albertel 1493: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1494: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1495: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1496: }
1.332 albertel 1497: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1498: }
1.164 albertel 1499: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1500: my $uri=$env{'request.uri'};
1.159 albertel 1501: if ($uri=~/\.(\w+)$/) {
1502: $Apache::lonhomework::type=$1;
1503: &Apache::lonxml::debug("Using type of $1");
1504: } else {
1505: $Apache::lonhomework::type='problem';
1506: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1507: }
1.87 albertel 1508: }
1.301 albertel 1509: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1510:
1.363 albertel 1511: &initialize_storage();
1.389 albertel 1512: if ($target ne 'analyze'
1513: && $env{'request.state'} eq 'construct') {
1514: &set_problem_state('0');
1515: }
1516:
1.366 albertel 1517: if ($target eq 'web') {
1518: &Apache::lonxml::debug(" grading history ");
1519: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1520: }
1.363 albertel 1521:
1.159 albertel 1522: #added vars to the scripting enviroment
1.213 albertel 1523: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1524: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1525: &Apache::run::run($expression,$safeeval);
1.159 albertel 1526: my $status;
1527: my $accessmsg;
1.508 raeburn 1528: my $resource_due;
1.159 albertel 1529:
1.343 albertel 1530: my $name= &get_resource_name($parstack,$safeeval);
1.512.2.16 raeburn 1531: my ($result,$form_tag_start,$slot_name,$slot,$probpartlist,$firstaccres);
1.506 raeburn 1532:
1533: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1534: $target eq 'tex') {
1535: if ($env{'form.markaccess'}) {
1536: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1.512.2.16 raeburn 1537: my $is_set = &Apache::lonnet::set_first_access($interval[1],$interval[0]);
1538: unless (($is_set eq 'ok') || ($is_set eq 'already_set')) {
1539: $firstaccres = $is_set;
1540: }
1.506 raeburn 1541: }
1542:
1543: ($status,$accessmsg,$slot_name,$slot) =
1544: &Apache::lonhomework::check_slot_access('0','problem');
1545: push (@Apache::inputtags::status,$status);
1546: }
1547:
1.354 albertel 1548: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1549: || $target eq 'edit') {
1.512.2.9 raeburn 1550: ($result,$form_tag_start,$probpartlist) =
1.350 albertel 1551: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1552: $name);
1.512.2.9 raeburn 1553: } elsif (($target eq 'grade') && ($Apache::lonhomework::type eq 'randomizetry')) {
1554: my ($symb)= &Apache::lonnet::whichuser();
1555: my $navmap = Apache::lonnavmaps::navmap->new();
1556: if (ref($navmap)) {
1557: my $res = $navmap->getBySymb($symb);
1558: if (ref($res)) {
1559: $probpartlist = $res->parts();
1560: }
1561: }
1.350 albertel 1562: }
1563:
1.284 albertel 1564: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1565:
1.479 raeburn 1566: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1567: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1568: $target eq 'tex') {
1.479 raeburn 1569:
1.159 albertel 1570: #handle rand seed in construction space
1.512.2.9 raeburn 1571: my $rndseed=&setup_rndseed($safeeval,$target,$probpartlist);
1572: if (($target eq 'grade') && &Apache::response::submitted()) {
1573: if ($Apache::lonhomework::type eq 'randomizetry') {
1574: $Apache::lonhomework::results{'resource.0.rndseed'}=$rndseed;
1575: } else {
1576: my @parts;
1577: if (ref($probpartlist) eq 'ARRAY') {
1578: @parts = @{$probpartlist};
1579: }
1580: unless (@parts) {
1581: $Apache::lonhomework::results{'resource.0.rndseed'}=$Apache::lonhomework::rawrndseed;
1582: }
1583: }
1584: }
1.367 albertel 1585: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 1586:
1.333 albertel 1587: if ($env{'request.state'} ne "construct" &&
1588: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1589: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1590: $rndseed.'" />'.
1591: '<input type="submit" name="resetdata"
1592: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1593: if (exists($env{'form.username'})) {
1594: $form_tag_start.=
1.164 albertel 1595: '<input type="hidden" name="username"
1.284 albertel 1596: value="'.$env{'form.username'}.'" />';
1.334 albertel 1597: }
1.462 raeburn 1598: if ($env{'request.role.adv'}) {
1599: $form_tag_start.= ' <label class="LC_nobreak">'
1600: .'<input type="checkbox" name="showallfoils"';
1601: if (defined($env{'form.showallfoils'})) {
1602: $form_tag_start.=' checked="checked"';
1603: }
1604: $form_tag_start.= ' /> '
1605: .&mt('Show All Foils')
1606: .'</label>';
1607: }
1.417 www 1608: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1609: $form_tag_start.=&practice_problem_header();
1.417 www 1610: }
1.462 raeburn 1611: $form_tag_start.='<hr />';
1.479 raeburn 1612: } elsif (($env{'request.state'} ne "construct") &&
1613: ($Apache::lonhomework::type eq 'randomizetry') &&
1614: ($status eq 'CAN_ANSWER')) {
1615: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1616: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1617: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1618: }
1.324 albertel 1619:
1.159 albertel 1620: my $expression='$external::datestatus="'.$status.'";';
1621: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1622: &Apache::run::run($expression,$safeeval);
1623: &Apache::lonxml::debug("Got $status");
1.324 albertel 1624:
1.159 albertel 1625: if (( $status eq 'CLOSED' ) ||
1626: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1627: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1628: ( $status eq 'BANNED') ||
1.216 albertel 1629: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1630: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1631: ( $status eq 'NOTRESERVABLE') ||
1632: ( $status eq 'RESERVABLE') ||
1633: ( $status eq 'RESERVABLE_LATER') ||
1.216 albertel 1634: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1635: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1636: $style);
1.159 albertel 1637: if ( $target eq "web" ) {
1.343 albertel 1638: my $msg;
1.159 albertel 1639: if ($status eq 'UNAVAILABLE') {
1.504 golterma 1640: $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1.441 raeburn 1641: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.504 golterma 1642: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1.499 raeburn 1643: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1644: ($status eq 'NOTRESERVABLE')) {
1.504 golterma 1645: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1.253 albertel 1646: } elsif ($status ne 'NOT_YET_VIEWED') {
1.504 golterma 1647: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1.499 raeburn 1648: }
1.216 albertel 1649: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1650: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1651: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1652: $msg.=&checkout_msg();
1.252 albertel 1653: } elsif ($status eq 'NOT_YET_VIEWED') {
1.512.2.16 raeburn 1654: if ($firstaccres) {
1655: $msg .= '<p class="LC_error">'.
1656: &mt('A problem occurred when trying to start the timer.').'</p>';
1657: }
1.253 albertel 1658: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1659: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1660: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.499 raeburn 1661: } elsif ($status eq 'RESERVABLE') {
1662: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1663: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1664: '<br />'.
1665: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1666: } elsif ($status eq 'RESERVABLE_LATER') {
1667: $msg.=&mt('Window to make a reservation will open [_1].',
1668: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1669: } elsif ($status eq 'NOTRESERVABLE') {
1670: $msg.=&mt('Not available to make a reservation.');
1.159 albertel 1671: }
1672: $result.=$msg.'<br />';
1673: } elsif ($target eq 'tex') {
1.332 albertel 1674: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1675: : '\begin{minipage}{\textwidth}';
1.443 foxr 1676: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1677: $startminipage.'\vskip 0 mm';
1.159 albertel 1678: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1679: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1680: } else {
1.211 albertel 1681: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1682: }
1683: }
1.324 albertel 1684: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1685: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1686: $style);
1.324 albertel 1687: if ($target eq 'web') {
1.375 albertel 1688: $result .=
1689: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1690: } elsif ($target eq 'grade') {
1691: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1692: 'problem');
1693: }
1.159 albertel 1694: } elsif ($target eq 'web') {
1.508 raeburn 1695: if ($status eq 'CAN_ANSWER') {
1696: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1697: if ($slot_name ne '') {
1698: my $checked_in =
1699: $Apache::lonhomework::history{'resource.0.checkedin'};
1700: if ($checked_in eq '') {
1701: # unproctored slot access, self checkin
1702: &Apache::bridgetask::check_in('problem',undef,undef,
1703: $slot_name);
1704: $checked_in =
1705: $Apache::lonhomework::results{"resource.0.checkedin"};
1706: }
1707: if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1708: if ($slot->{'starttime'} < time()) {
1709: if (!$resource_due) {
1710: $resource_due = $slot->{'endtime'};
1711: } elsif ($slot->{'endtime'} < $resource_due) {
1712: $resource_due = $slot->{'endtime'};
1713: }
1714: }
1715: }
1716: }
1717: if ($resource_due) {
1718: my $time_left = $resource_due - time();
1719: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1720: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1721: }
1722: }
1723: }
1.368 albertel 1724: $result.="\n $form_tag_start \t".
1.227 albertel 1725: '<input type="hidden" name="submitted" value="yes" />';
1726: # create a page header and exit
1.284 albertel 1727: if ($env{'request.state'} eq "construct") {
1728: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1729: if ($Apache::lonhomework::type eq 'practice') {
1730: $result.= '<input type="submit" name="resetdata" '.
1731: 'value="'.&mt('New Problem Variation').'" />'.
1732: &practice_problem_header().'<hr />';
1733: }
1.227 albertel 1734: }
1735: # if we are viewing someone else preserve that info
1.284 albertel 1736: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1737: foreach my $field ('symb','courseid','domain','username') {
1738: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1739: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1740: }
1.479 raeburn 1741: foreach my $field ('trial','questiontype') {
1742: if ($env{"form.grade_$field"} ne '') {
1743: $result .= '<input type="hidden" name="grade_'.$field.
1744: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1745: }
1746: }
1.159 albertel 1747: }
1.490 raeburn 1748: if ($env{'form.grade_imsexport'}) {
1749: $result = '';
1750: }
1.159 albertel 1751: } elsif ($target eq 'tex') {
1.319 foxr 1752: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 1753: $result .= &select_metadata_hyphenation();
1754:
1.319 foxr 1755:
1.99 sakharuk 1756: }
1.159 albertel 1757: } elsif ($target eq 'edit') {
1.343 albertel 1758: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1759: $Apache::lonxml::warnings_error_header=
1760: &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 1761: my $temp=&Apache::edit::insertlist($target,$token);
1762: $result.=$temp;
1763: } elsif ($target eq 'modified') {
1764: $result=$token->[4];
1765: } else {
1766: # page_start returned a starting result, delete it if we don't need it
1767: $result = '';
1.99 sakharuk 1768: }
1.159 albertel 1769: return $result;
1.9 albertel 1770: }
1771:
1772: sub end_problem {
1.159 albertel 1773: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1774: my $result;
1.310 foxr 1775:
1.321 albertel 1776: if (!$Apache::lonxml::metamode) {
1777: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1778: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1779: }
1.319 foxr 1780:
1781: if ($target eq 'tex') {
1.321 albertel 1782: # Figure out the front matter and replace the
1783: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1784: # this in end_problem because whether or not we display due
1785: # dates depends on whether due dates have already been
1786: # displayed in the problem parts.
1787:
1.319 foxr 1788: my $frontmatter = '';
1789: my $startminipage = '';
1790: if (not $env{'form.problem_split'}=~/yes/) {
1791: $startminipage = '\begin{minipage}{\textwidth}';
1792: }
1793: my $id = $Apache::inputtags::part;
1794: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1795: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.512.2.9 raeburn 1796: my @packages = split(/,/,$packages);
1.319 foxr 1797: my $allow_print_points = 0;
1798: foreach my $partial_key (@packages) {
1799: if ($partial_key=~m/^part_0$/) {
1800: $allow_print_points=1;
1801: }
1802: }
1803: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1804: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1805: if (lc($env{'course.'.$env{'request.course.id'}.
1806: '.disableexampointprint'}) eq 'yes') {
1807: $allow_print_points=0;
1808: }
1809: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1810: 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 1811: &clear_required_languages();
1.319 foxr 1812: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1813: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1814:
1815: # Figure out what the due date is and if we need to print
1816: # it in the problem header. We have been logging the
1817: # last due date written to file.
1818:
1819: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1820: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1821: my $duedate_text = &mt('Due date: [_1]'
1822: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1823: my $temp_file;
1824: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1825:
1826: # Figure out what the last printed due date is or set it
1827: # to the epoch if no duedates have been printed.
1828:
1829: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1830: if (-e $filename) {
1831: $temp_file = Apache::File->new($filename);
1832: my @due_file = <$temp_file>;
1833: $due_file_content = $due_file[$#due_file];
1834: chomp $due_file_content;
1835: }
1836:
1837: # We display the due date iff it is not the same as the last
1838: # duedate in problem header ($due_file_content), and
1839: # none of our parts displayed a duedate.
1840: #
1841: my $parts_with_displayduedate;
1842: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1843: $parts_with_displayduedate =
1844: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1845: } else {
1846: $parts_with_displayduedate = 0;
1847: }
1848: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1849: $temp_file = Apache::File->new('>'.$filename);
1850: print $temp_file "$duetime\n";
1851: if (not $env{'request.symb'} =~ m/\.page_/) {
1852: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1853: $frontmatter .= $begin_doc.
1.448 bisitz 1854: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1855: } else {
1856: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1857: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1858: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1859: }
1.319 foxr 1860: }
1861: } else {
1.448 bisitz 1862: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1863: }
1864: } else {
1865: if (not $env{'request.symb'} =~ m/\.page_/) {
1866: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1867: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1868: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1869: }
1.319 foxr 1870: } else {
1.381 albertel 1871: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1872: }
1873: }
1874: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1875: }
1876:
1.159 albertel 1877: my $status=$Apache::inputtags::status['-1'];
1878: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1879: $target eq 'tex') {
1.249 albertel 1880: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1881: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1882: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1883: &Apache::inputtags::grade;
1.324 albertel 1884: } elsif ($status eq 'NEEDS_CHECKIN') {
1885: # no need to grade, and don't want to hide data
1.249 albertel 1886: } else {
1887: # move any submission data to .hidden
1888: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1889: }
1.159 albertel 1890: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1891: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1892: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1893: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1894: # if part is zero, no <part>s existed, so we need show the current
1895: # grading status
1896: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1897: $result.= $gradestatus;
1898: }
1899: if (
1.284 albertel 1900: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1901: ($target eq 'answer') || ($target eq 'tex')
1902: ) {
1.490 raeburn 1903: if (($target ne 'tex') &&
1904: ($env{'form.answer_output_mode'} ne 'tex') &&
1905: (!$env{'form.grade_imsexport'})) {
1.254 www 1906: $result.="</form>";
1.159 albertel 1907: }
1908: if ($target eq 'web') {
1.507 raeburn 1909: #
1910: # Closing </body></html> not added by end_page().
1911: # Added separately at end of this routine, after added
1912: # <script></script> so document will be valid xhtml.
1913: #
1914: $result.= &Apache::loncommon::end_page({'discussion' => 1,
1915: 'notbody' => 1});
1.159 albertel 1916: } elsif ($target eq 'tex') {
1.178 sakharuk 1917: my $endminipage = '';
1.284 albertel 1918: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1919: $endminipage = '\end{minipage}';
1920: }
1.284 albertel 1921: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1922: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1923: } else {
1.262 sakharuk 1924: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1925: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1926: $result .= $endminipage.'\end{document} ';
1927: } else {
1.382 albertel 1928: $result .= $endminipage;
1.262 sakharuk 1929: }
1.159 albertel 1930: }
1931: }
1932: }
1.476 www 1933: if ($target eq 'web') {
1934: $result.=&Apache::functionplotresponse::init_script();
1935: }
1.159 albertel 1936: if ($target eq 'grade') {
1937: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1938: &finalize_storage();
1939: }
1.284 albertel 1940: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1941: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1942: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1943: # normally we get it from above, but in CSTR
1.172 albertel 1944: # we always show answer mode too.
1.159 albertel 1945: }
1946: } elsif ($target eq 'meta') {
1947: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1948: @Apache::inputtags::response=();
1.159 albertel 1949: $result=&Apache::response::mandatory_part_meta;
1950: }
1.215 albertel 1951: $result.=&Apache::response::meta_part_order();
1.258 albertel 1952: $result.=&Apache::response::meta_response_order();
1.159 albertel 1953: } elsif ($target eq 'edit') {
1954: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1955: $result .= &problem_edit_footer();
1.320 albertel 1956: } elsif ($target eq 'modified') {
1957: $result .= $token->[2];
1.159 albertel 1958: }
1.155 albertel 1959:
1.284 albertel 1960: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1961: &Apache::inputtags::check_for_duplicate_ids();
1962: }
1.204 albertel 1963:
1964: &reset_problem_globals('problem');
1.159 albertel 1965:
1.502 foxr 1966: #
1967: # This shouild be just above the return so that the
1968: # time put in the javascript is as late as possible in the
1969: # computation:
1970: #
1971: if ($target eq 'web') {
1972: $result .= &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 1973: #
1974: # Closing tags delayed so any <script></script> tags
1975: # not in head can appear inside body, for valid xhtml.
1976: #
1977: $result .= "</body>\n</html>";
1.502 foxr 1978: }
1.159 albertel 1979: return $result;
1.48 albertel 1980: }
1981:
1.108 albertel 1982:
1.48 albertel 1983: sub start_library {
1.159 albertel 1984: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1985: my ($result,$form_tag_start);
1.371 albertel 1986: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1987: &init_problem_globals('library');
1988: $Apache::lonhomework::type='problem';
1989: }
1.159 albertel 1990: if ($target eq 'edit') {
1.343 albertel 1991: ($result,$form_tag_start)=
1992: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1993: 'Edit');
1994: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1995: my $temp=&Apache::edit::insertlist($target,$token);
1996: $result.=$temp;
1997: } elsif ($target eq 'modified') {
1998: $result=$token->[4];
1.340 albertel 1999: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 2000: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 2001: && $env{'request.state'} eq "construct" ) {
1.159 albertel 2002: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 2003: ($result,$form_tag_start)=
2004: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2005: $name);
1.479 raeburn 2006: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 2007: $result.=" \n $form_tag_start".
1.159 albertel 2008: '<input type="hidden" name="submitted" value="yes" />';
2009: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 2010: if ($Apache::lonhomework::type eq 'practice') {
2011: $result.= '<input type="submit" name="resetdata" '.
2012: 'value="'.&mt('New Problem Variation').'" />'.
2013: &practice_problem_header().'<hr />';
2014: }
1.159 albertel 2015: }
2016: return $result;
1.48 albertel 2017: }
2018:
2019: sub end_library {
1.159 albertel 2020: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2021: my $result='';
2022: if ($target eq 'edit') {
2023: $result=&problem_edit_footer();
1.371 albertel 2024: } elsif ($target eq 'web'
2025: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
2026: && $env{'request.state'} eq "construct") {
1.349 albertel 2027: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.512.2.15 raeburn 2028: } elsif ($target eq 'meta') {
2029: $result.=&Apache::response::meta_response_order();
1.159 albertel 2030: }
1.371 albertel 2031: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
2032: &reset_problem_globals('library');
2033: }
1.159 albertel 2034: return $result;
1.197 www 2035: }
2036:
2037: sub start_definetag {
1.326 albertel 2038: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 2039:
2040: my $result;
2041:
2042: my $name = $token->[2]->{'name'};
1.326 albertel 2043: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 2044: if ($target eq 'web') {
2045: if ($name=~/^\//) {
2046: $result=
2047: '<br /><table class="LC_sty_end"><tr><th>'.
2048: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2049: } else {
2050: $result=
2051: '<br /><table class="LC_sty_begin"><tr><th>'.
2052: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2053: }
2054: $skip = &HTML::Entities::encode($skip, '<>&"');
2055: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 2056: }
2057: return $result;
2058: }
2059:
2060: sub end_definetag {
2061: return '';
1.1 albertel 2062: }
2063:
2064: sub start_block {
1.201 albertel 2065: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 2066:
2067: my $result;
1.1 albertel 2068:
1.339 albertel 2069: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2070: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 2071: my $code = $token->[2]->{'condition'};
1.385 albertel 2072: if (defined($code) && $code ne '') {
1.137 albertel 2073: if (!$Apache::lonxml::default_homework_loaded) {
2074: &Apache::lonxml::default_homework_load($safeeval);
2075: }
1.131 albertel 2076: $result = &Apache::run::run($code,$safeeval);
2077: &Apache::lonxml::debug("block :$code: returned :$result:");
2078: } else {
2079: $result='1';
2080: }
2081: if ( ! $result ) {
1.201 albertel 2082: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 2083: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2084: }
2085: $result='';
2086: } elsif ($target eq 'edit') {
2087: $result .=&Apache::edit::tag_start($target,$token);
2088: $result .=&Apache::edit::text_arg('Test Condition:','condition',
2089: $token,40);
2090: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2091: } elsif ($target eq 'modified') {
2092: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2093: $safeeval,'condition');
2094: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 2095: }
1.131 albertel 2096: return $result;
1.1 albertel 2097: }
2098:
2099: sub end_block {
1.167 www 2100: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2101: my $result;
2102: if ($target eq "edit") {
2103: $result.= &Apache::edit::tag_end($target,$token,'');
2104: }
2105: return $result;
2106: }
1.500 foxr 2107: #
2108: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
2109: # ...
2110: # </languageblock>
2111: #
2112: # This declares the intent to provide content that can be rendered in the
2113: # set of languages in the include specificatino but not in the exclude
2114: # specification. If a currently preferred language is in the include list
2115: # the content in the <languageblock>...</languageblock> is rendered
2116: # If the currently preferred language is in the exclude list,
2117: # the content in the <languageblock>..></languageblock is not rendered.
2118: #
2119: # Pathalogical case handling:
2120: # - Include specified, without the preferred language but exclude specified
2121: # also without the preferred langauge results in rendering the block.
2122: # - Exclude specified without include and excluden not containing a
2123: # preferred language renders the block.
2124: # - Include and exclude both specifying the preferred language does not
2125: # render the block.
2126: # - If neither include/exclude is specified, the block gets rendered.
2127: #
2128: # This tag has no effect when target is in {edit, modified}
2129: #
1.167 www 2130: sub start_languageblock {
1.201 albertel 2131: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 2132:
1.500 foxr 2133: my $result = '';
1.167 www 2134:
1.339 albertel 2135: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2136: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 2137: my $include = $token->[2]->{'include'};
2138: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 2139: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 2140:
2141: # This should not even happen, since we should at least have the server language
2142:
2143: if (!$preferred_languages[0]) {
2144: $preferred_languages[0]='en';
2145: }
2146:
2147: # Now loop over all languages in order of preference
2148:
2149: my $render;
1.398 www 2150: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 2151:
2152: # If neither include/nor exlude is present the block is going
2153: # to get rendered.
2154:
1.399 www 2155: my $found=0;
1.500 foxr 2156: $render=1;
2157:
2158: # If include is specified, don't render the block
2159: # unless the preferred language is included in the set.
2160:
1.398 www 2161: if ($include) {
1.500 foxr 2162: $render=0;
1.398 www 2163: foreach my $included_language (split(/\,/,$include)) {
2164: if ($included_language eq $preferred_language) {
1.500 foxr 2165: $render=1;
1.399 www 2166: $found=1;
1.500 foxr 2167: last; # Only need to find the first.
1.398 www 2168: }
2169: }
2170: }
1.500 foxr 2171: # Do we have an exclude argument?
2172: # If so, and one of the languages matches a preferred language
2173: # inhibit rendering the block. Note that in the pathalogical case the
2174: # author has specified a preferred language in both the include and exclude
2175: # attribte exclude is preferred.
2176:
1.398 www 2177: if ($exclude) {
1.500 foxr 2178: $render=1;
1.398 www 2179: foreach my $excluded_language (split(/\,/,$exclude)) {
2180: if ($excluded_language eq $preferred_language) {
1.500 foxr 2181: $render=0;
1.399 www 2182: $found=1;
1.500 foxr 2183: last; # Only need to find the first.
1.398 www 2184: }
2185: }
2186: }
1.500 foxr 2187: if ($found) {
2188: last; # Done on any match of include or exclude.
2189: }
1.398 www 2190: }
1.500 foxr 2191: # If $render not true skip the entire block until </languageblock>
2192: #
2193:
2194: if ( ! $render ) {
1.201 albertel 2195: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
2196: $style);
2197: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2198: }
1.500 foxr 2199: # If $render is true, we've not skipped the contents of the <languageglock>
2200: # and the normal loncapa processing flow will render it as a matter of course.
2201:
1.167 www 2202: } elsif ($target eq 'edit') {
2203: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2204: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 2205: $token,40);
1.211 albertel 2206: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 2207: $token,40);
2208: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2209: } elsif ($target eq 'modified') {
2210: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 2211: $safeeval,'include',
2212: 'exclude');
1.167 www 2213: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2214: }
2215: return $result;
2216: }
2217:
2218: sub end_languageblock {
1.170 www 2219: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2220: my $result;
1.201 albertel 2221: if ($target eq "edit") {
1.170 www 2222: $result.= &Apache::edit::tag_end($target,$token,'');
2223: }
2224: return $result;
2225: }
1.500 foxr 2226: # languagblock specific tags:
2227: {
2228: # For chunks of a resource that has translations, this hash contains
2229: # the translations available indexed by language name.
2230: #
2231:
2232: my %available_texts;
1.170 www 2233:
1.500 foxr 2234: # <translated> starts a block of a resource that has multiple translations.
2235: # See the <lang> tag as well.
2236: # When </translated> is encountered if there is a translation for the
2237: # currently preferred language, that is rendered inthe web/tex/webgrade
2238: # targets. Otherwise, the default text is rendered.
2239: #
2240: # Note that <lang> is only registered for the duration of the
2241: # <translated>...</translated> block
2242: #
2243: # Pathalogical case handling:
2244: # - If there is no <lang> that specifies a 'default' and there is no
2245: # translation that matches a preferred language, nothing is rendered.
2246: # - Nested <translated>...</translated> might be linguistically supported by
2247: # XML due to the stack nature of tag registration(?) however the rendered
2248: # output will be incorrect because there is only one %available_texts
2249: # has and end_translated clears it.
2250: # - Material outside of a <lang>...</lang> block within the
2251: # <translated>...<translated> block won't render either e.g.:
2252: # <translated>
2253: # The following will be in your preferred langauge:
2254: # <lang which='en'>
2255: # This section in english
2256: # </lang>
2257: # <lang which='sgeiso'>
2258: # Hier es ist auf Deutsch.
2259: # </lang>
2260: # <lang which='sfriso'>
2261: # En Francais
2262: # </lang>
2263: # </translated>
2264: #
2265: # The introductory text prior to the first <lang> tag is not rendered.
2266: #
1.397 albertel 2267: sub start_translated {
2268: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2269: &Apache::lonxml::register('Apache::structuretags',('lang'));
2270: undef(%available_texts);
2271: }
2272:
2273: sub end_translated {
2274: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2275: my $result;
2276: #show the translation on viewable targets
2277: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
2278: # or non-viewable targets, if it's embedded in something that
2279: # wants the output
2280: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
2281: && &Apache::lonxml::in_redirection() ) ) {
2282: my @possibilities = keys(%available_texts);
2283: my $which =
2284: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 2285: if ($target eq 'tex') {
2286: $result = &select_hyphenation($which);
2287: }
2288: $result .= $available_texts{$which};
2289: if ($target eq 'tex') {
2290: $result .= &select_metadata_hyphenation(); # Restore original language.
2291: }
1.397 albertel 2292: }
2293: undef(%available_texts);
2294: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
2295: return $result;
2296: }
2297:
1.500 foxr 2298: # <lang [which='language-name'] [other='lang1,lang2...']>
2299: # Specifies that the block contained within it is a translation
2300: # for a specific language specified by the 'which' attribute. The
2301: # 'other' attribute can be used by itself or in conjunction with
2302: # which to specify this tag _may_ be used as a translation for some
2303: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
2304: # specifying that the block provides a translation for US (primary)
2305: # Canadian, Australian and UK Englush.
2306: #
2307: # Comment: this seems a bit silly why not just support a list of languages
2308: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
2309: #
2310: # Effect:
2311: # The material within the <lang>..</lang> block is stored in the
2312: # specified set of $available_texts hash entries, the appropriate one
2313: # is selected at </translated> time.
2314: #
2315: # Pathalogical case handling:
2316: # If a language occurs multiple times within a <translated> block,
2317: # only the last one is rendered e.g.:
2318: #
2319: # <translated>
2320: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
2321: # Red green color blindness is quite common affecting about 7.8% of
2322: # the male population, but onloy about .65% of the female population.
2323: # </lang>
2324: # Red green colour blindness is quite common affecting about 7.8% of
2325: # the male population, but onloy about .65% of the female population.
2326: # <lang which='seniso', other='senisoCA,senisoAU'>
2327: # </translated>
2328: #
2329: # renders the correct spelling of color (colour) for people who have specified
2330: # a preferred language that is one of the British Commonwealth languages
2331: # even though those are also listed as valid selections for the US english
2332: # <lang> block.
2333: #
1.397 albertel 2334: sub start_lang {
2335: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2336: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2337: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2338: &Apache::lonxml::startredirection();
2339: }
2340: return '';
2341: }
2342:
2343: sub end_lang {
2344: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2345: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2346: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2347: my $result = &Apache::lonxml::endredirection();
2348: my $which = &Apache::lonxml::get_param('which',$parstack,
2349: $safeeval);
1.431 raeburn 2350: if ($which=~/\w/) {
2351: $available_texts{$which} = $result;
2352: }
2353: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
2354: $safeeval);
2355: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
2356: if ($language=~/\w/) {
2357: $available_texts{$language} = $result;
2358: }
1.427 bisitz 2359: }
2360:
1.397 albertel 2361: }
2362: return '';
2363: }
1.500 foxr 2364: } # end langauge block specific tags.
2365:
1.397 albertel 2366:
1.170 www 2367: sub start_instructorcomment {
1.201 albertel 2368: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 2369:
2370: my $result;
2371:
1.339 albertel 2372: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2373: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 2374: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 2375: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 2376: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
2377: $parser,$style);
1.170 www 2378: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2379: }
2380: $result='';
2381: } elsif ($target eq 'edit') {
2382: $result .=&Apache::edit::tag_start($target,$token);
2383: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2384: }
2385: return $result;
2386: }
2387:
2388: sub end_instructorcomment {
1.159 albertel 2389: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2390: my $result;
2391: if ($target eq "edit") {
2392: $result.= &Apache::edit::tag_end($target,$token,'');
2393: }
2394: return $result;
1.4 tsai 2395: }
2396:
2397: sub start_while {
1.326 albertel 2398: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2399:
1.160 albertel 2400: my $result;
1.339 albertel 2401: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2402: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2403: my $code = $token->[2]->{'condition'};
1.4 tsai 2404:
1.160 albertel 2405: push( @Apache::structuretags::whileconds, $code);
2406: if (!$Apache::lonxml::default_homework_loaded) {
2407: &Apache::lonxml::default_homework_load($safeeval);
2408: }
2409: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2410: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2411: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2412: push( @Apache::structuretags::whileline, $token->[5]);
2413: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2414: if ( $result ) {
2415: &Apache::lonxml::newparser($parser,\$bodytext);
2416: }
2417: } elsif ($target eq 'edit') {
2418: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2419: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2420: $token,40);
2421: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2422: } elsif ($target eq 'modified') {
2423: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2424: $safeeval,'condition');
2425: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2426: }
1.160 albertel 2427: return $result;
1.4 tsai 2428: }
2429:
2430: sub end_while {
1.159 albertel 2431: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2432: my $result;
2433:
1.339 albertel 2434: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2435: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2436: my $code = pop(@Apache::structuretags::whileconds);
2437: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2438: my $line = pop(@Apache::structuretags::whileline);
2439: my $return = &Apache::run::run($code,$safeeval);
2440: my $starttime=time;
2441: my $error=0;
2442: while ($return) {
2443: if (time-$starttime >
2444: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2445: $return = 0; $error=1; next;
1.161 albertel 2446: }
2447: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2448: if ($target eq 'grade' || $target eq 'answer' ||
2449: $target eq 'analyze') {
2450: # grade/answer/analyze should produce no output but if we
2451: # are redirecting, the redirecter should know what to do
2452: # with the output
2453: if (!$Apache::lonxml::redirection) { undef($result); }
2454: }
1.161 albertel 2455: $return = &Apache::run::run($code,$safeeval);
2456: }
1.512.2.5 raeburn 2457: if ($error) {
2458: &Apache::lonxml::error(
2459: '<pre>'
2460: .&mt('Code ran too long. It ran for more than [_1] seconds.',
2461: $Apache::lonnet::perlvar{'lonScriptTimeout'})
2462: .&mt('This occurred while running <while> on line [_1].',
2463: $line)
2464: .'</pre>');
2465: }
1.160 albertel 2466: } elsif ($target eq "edit") {
2467: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2468: }
1.160 albertel 2469: return $result;
1.1 albertel 2470: }
1.6 tsai 2471:
1.160 albertel 2472: # <randomlist show="1">
1.6 tsai 2473: # <tag1>..</tag1>
2474: # <tag2>..</tag2>
2475: # <tag3>..</tag3>
1.160 albertel 2476: # ...
1.6 tsai 2477: # </randomlist>
2478: sub start_randomlist {
1.326 albertel 2479: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2480: my $result;
1.339 albertel 2481: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2482: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2483: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2484: my $b_parser= HTML::LCParser->new(\$body);
2485: $b_parser->xml_mode(1);
2486: $b_parser->marked_sections(1);
1.159 albertel 2487: my $b_tok;
2488: my @randomlist;
2489: my $list_item;
2490: while($b_tok = $b_parser->get_token() ) {
2491: if($b_tok->[0] eq 'S') { # start tag
2492: # get content of the tag until matching end tag
2493: # get all text upto the matching tag
2494: # and push the content into @randomlist
2495: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2496: $b_parser);
2497: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2498: push(@randomlist,$list_item);
2499: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2500: # $list_item</b>";
2501: }
2502: if($b_tok->[0] eq 'T') { # text
2503: # what to do with text in between tags?
2504: # print "<b>TEXT $b_tok->[1]</b><br />";
2505: }
2506: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2507: # print "<b>END-TAG $b_tok->[1]</b><br />";
2508: # }
2509: }
1.303 albertel 2510: if (@randomlist) {
2511: my @idx_arr = (0 .. $#randomlist);
1.512.2.14 raeburn 2512: if ($env{'form.code_for_randomlist'}) {
2513: &Apache::structuretags::shuffle(\@idx_arr,$target);
2514: undef($env{'form.code_for_randomlist'});
2515: } else {
2516: &Apache::structuretags::shuffle(\@idx_arr);
2517: }
1.303 albertel 2518: my $bodytext = '';
2519: my $show=$#randomlist;
2520: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2521: $showarg--;
2522: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2523: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2524: my @currlist;
2525: my $part = $Apache::inputtags::part;
2526: if ($part ne '') {
2527: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2528: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2529: if (!(grep(/^\Q$part\E$/,@currlist))) {
2530: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2531: }
2532: } else {
2533: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2534: }
2535: }
2536: }
1.512.2.9 raeburn 2537: for my $i (0 .. $show) {
2538: $bodytext .= "$randomlist[ $idx_arr[$i] ]";
1.303 albertel 2539: }
2540: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2541: }
2542: } elsif ($target eq 'edit' ) {
2543: $result .=&Apache::edit::tag_start($target,$token);
2544: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2545: $token,5);
2546: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2547: } elsif ($target eq 'modified' ) {
2548: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2549: $safeeval,'show');
2550: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2551: }
2552: return $result;
1.7 tsai 2553: }
2554:
2555: sub shuffle {
1.512.2.14 raeburn 2556: my ($a,$target) = @_;
1.7 tsai 2557: my $i;
1.303 albertel 2558: if (ref($a) eq 'ARRAY' && @$a) {
1.512.2.14 raeburn 2559: &Apache::response::pushrandomnumber(undef,$target);
1.159 albertel 2560: for($i=@$a;--$i;) {
2561: my $j=int(&Math::Random::random_uniform() * ($i+1));
2562: next if $i == $j;
2563: @$a[$i,$j] = @$a[$j,$i];
2564: }
1.251 albertel 2565: &Apache::response::poprandomnumber();
1.7 tsai 2566: }
1.6 tsai 2567: }
2568:
2569: sub end_randomlist {
1.159 albertel 2570: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2571: my $result;
2572: if ($target eq 'edit' ) {
2573: $result=&Apache::edit::tag_end($target,$token,
2574: 'End Randomly Parsed Block');
2575: }
2576: return $result;
1.6 tsai 2577: }
2578:
1.283 albertel 2579: sub ordered_show_check {
2580: my $last_part=$Apache::inputtags::partlist[-2];
2581: my $in_order=
2582: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2583: my $in_order_show=1;
2584: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2585: $in_order_show=&Apache::response::check_status($last_part);
2586: }
2587: return $in_order_show;
2588: }
2589:
1.469 www 2590:
2591: sub start_startpartmarker {
2592: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2593: my $result='';
2594: if ($target eq 'edit') {
2595: $result=&Apache::edit::tag_start($target,$token);
2596: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2597: $result.=&Apache::edit::end_table();
2598:
2599: }
2600: return $result;
2601: }
2602:
2603: sub end_startpartmarker {
2604: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2605: my @result;
2606: if ($target eq 'edit') { $result[1]='no'; }
2607: return @result;
2608: }
2609:
2610: sub start_endpartmarker {
2611: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2612: my $result='';
2613: if ($target eq 'edit') {
2614: $result=&Apache::edit::tag_start($target,$token);
2615: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2616: $result.=&Apache::edit::end_table();
2617:
2618: }
2619: return $result;
2620: }
2621:
2622: sub end_endpartmarker {
2623: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2624: my @result;
2625: if ($target eq 'edit') { $result[1]='no'; }
2626: return @result;
2627: }
2628:
2629:
2630:
2631:
2632:
1.11 albertel 2633: sub start_part {
1.326 albertel 2634: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2635: if (!$Apache::lonxml::metamode) {
2636: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2637: # duedates.
2638: }
1.159 albertel 2639: my $result='';
1.386 albertel 2640: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2641: $Apache::inputtags::part=$id;
1.177 albertel 2642: push(@Apache::inputtags::partlist,$id);
1.512.2.10 raeburn 2643: $Apache::inputtags::leniency='';
1.177 albertel 2644: @Apache::inputtags::response=();
1.159 albertel 2645: @Apache::inputtags::previous=();
2646: @Apache::inputtags::previous_version=();
1.405 albertel 2647: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2648: &Apache::response::reset_params();
2649:
1.159 albertel 2650: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2651: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2652: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.512.2.9 raeburn 2653: if ($Apache::lonhomework::type eq 'randomizetry') {
2654: my $rndseed=&setup_rndseed($safeeval,$target);
2655: if (($target eq 'grade') && &Apache::response::submitted()) {
2656: $Apache::lonhomework::results{"resource.$id.rndseed"}=$rndseed;
2657: }
2658: } elsif (($target eq 'grade') && &Apache::response::submitted()) {
2659: $Apache::lonhomework::results{"resource.$id.rndseed"}=$Apache::lonhomework::rawrndseed;
2660: }
1.283 albertel 2661: my $in_order_show=&ordered_show_check();
1.214 albertel 2662: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2663: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2664: &Apache::run::run($expression,$safeeval);
1.159 albertel 2665:
2666: if ($target eq 'meta') {
1.224 www 2667: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2668: return &Apache::response::mandatory_part_meta.
2669: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2670: } elsif ($target eq 'web' || $target eq 'grade' ||
2671: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2672: if ($hidden || !$in_order_show) {
1.326 albertel 2673: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2674: } else {
2675: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2676: push (@Apache::inputtags::status,$status);
2677: my $expression='$external::datestatus="'.$status.'";';
2678: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2679: &Apache::run::run($expression,$safeeval);
1.284 albertel 2680: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2681: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2682: }
1.216 albertel 2683: if (( $status eq 'CLOSED' ) ||
2684: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2685: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2686: ( $status eq 'BANNED') ||
2687: ( $status eq 'UNAVAILABLE') ||
2688: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2689: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2690: $style);
1.159 albertel 2691: if ( $target eq "web" ) {
1.211 albertel 2692: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2693: } elsif ( $target eq 'tex' ) {
1.284 albertel 2694: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2695: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2696: } else {
1.211 albertel 2697: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2698: }
1.159 albertel 2699: }
2700: } else {
2701: if ($target eq 'tex') {
1.284 albertel 2702: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2703: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2704: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2705: } else {
2706: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2707: }
1.195 sakharuk 2708: }
1.159 albertel 2709: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2710: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.512.2.9 raeburn 2711: my @allkeys = split(/,/,$allkeys);
1.222 sakharuk 2712: my $allow_print_points = 0;
2713: foreach my $partial_key (@allkeys) {
1.230 albertel 2714: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2715: if ($1 ne '0') {$allow_print_points=1;}
2716: }
2717: }
1.275 albertel 2718: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2719: if (defined($maxtries) && $maxtries < 0) {
2720: $allow_print_points=0;
2721: }
1.302 albertel 2722: if (lc($env{'course.'.$env{'request.course.id'}.
2723: '.disableexampointprint'}) eq 'yes') {
2724: $allow_print_points=0;
2725: }
1.463 foxr 2726: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2727: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2728:
2729: }
1.233 www 2730: } elsif ($target eq 'web') {
1.479 raeburn 2731: if ($status eq 'CAN_ANSWER') {
2732: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2733: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
2734: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
2735: my $num = scalar(@Apache::inputtags::partlist)-1;
2736: if ($probrandomize eq 'randomizetry') {
2737: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
2738: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2739: } else {
2740: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2741: if ($probrandtries ne $reqtries) {
2742: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2743: }
2744: }
2745: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
2746: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2747: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2748: }
2749: }
1.475 raeburn 2750: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2751: }
2752: }
2753: }
2754: } elsif ($target eq 'edit') {
2755: $result.=&Apache::edit::tag_start($target,$token);
2756: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2757: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2758: ' '.
2759: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2760: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2761: } elsif ($target eq 'modified') {
2762: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2763: $safeeval,'id','display');
1.159 albertel 2764: if ($constructtag) {
1.225 albertel 2765: #limiting ids to only letters numbers, and space
1.224 www 2766: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2767: $result = &Apache::edit::rebuild_tag($token);
2768: }
2769: }
2770: return $result;
1.11 albertel 2771: }
2772:
2773: sub end_part {
1.159 albertel 2774: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2775: &Apache::lonxml::debug("in end_part $target ");
2776: my $status=$Apache::inputtags::status['-1'];
2777: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2778: my $in_order_show=&ordered_show_check();
1.321 albertel 2779: my $result;
2780: if (!$Apache::lonxml::metamode) {
2781: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2782: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2783: }
1.312 albertel 2784: if ($target eq 'grade') {
1.249 albertel 2785: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2786: !$hidden && $in_order_show) {
1.311 foxr 2787: $result.=&Apache::inputtags::grade;
1.249 albertel 2788: } else {
2789: # move any submission data to .hidden
2790: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2791: }
1.283 albertel 2792: } elsif (($target eq 'web' || $target eq 'tex') &&
2793: !$hidden && $in_order_show) {
1.159 albertel 2794: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2795: $target);
1.490 raeburn 2796: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2797: ($env{'form.grade_imsexport'})) {
1.212 albertel 2798: $gradestatus='';
2799: }
1.311 foxr 2800: $result.=$gradestatus;
1.265 sakharuk 2801: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2802: } elsif ($target eq 'edit') {
1.311 foxr 2803: $result.=&Apache::edit::end_table();
1.322 albertel 2804: } elsif ($target eq 'modified') {
2805: $result .= $token->[2];
1.159 albertel 2806: }
2807: pop @Apache::inputtags::status;
2808: $Apache::inputtags::part='';
1.512.2.10 raeburn 2809: $Apache::inputtags::leniency='';
1.295 albertel 2810: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2811: return $result;
1.11 albertel 2812: }
1.1 albertel 2813:
1.25 albertel 2814: sub start_preduedate {
1.326 albertel 2815: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2816: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2817: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2818: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2819: if (!$Apache::lonhomework::scantronmode &&
2820: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2821: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2822: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2823: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2824: }
1.24 albertel 2825: }
1.159 albertel 2826: return '';
1.24 albertel 2827: }
2828:
1.25 albertel 2829: sub end_preduedate {
1.159 albertel 2830: return '';
1.24 albertel 2831: }
2832:
1.369 foxr 2833: # In all the modes where <postanswerdate> text is
2834: # displayable, all we do is eat up the text between the start/stop
2835: # tags if the conditions are not right to display it.
1.25 albertel 2836: sub start_postanswerdate {
1.326 albertel 2837: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2838: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2839: &Apache::lonnet::allowed('pav',
2840: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2841: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2842: $target eq 'tex' ) {
1.300 albertel 2843: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2844: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2845: (($target eq 'tex') && !$pav)) {
1.326 albertel 2846: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2847: }
2848: }
2849: return '';
1.24 albertel 2850: }
2851:
1.25 albertel 2852: sub end_postanswerdate {
1.159 albertel 2853: return '';
1.24 albertel 2854: }
2855:
1.25 albertel 2856: sub start_notsolved {
1.326 albertel 2857: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2858: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2859: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2860: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2861: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2862: if ($gradestatus =~ /^correct/ &&
2863: &Apache::response::show_answer()) {
1.159 albertel 2864: &Apache::lonxml::debug("skipping");
1.326 albertel 2865: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2866: }
1.24 albertel 2867: }
1.159 albertel 2868: return '';
1.24 albertel 2869: }
2870:
1.25 albertel 2871: sub end_notsolved {
1.159 albertel 2872: return '';
1.24 albertel 2873: }
2874:
2875: sub start_solved {
1.326 albertel 2876: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2877: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2878: $target eq 'tex') {
2879: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2880: if ($gradestatus !~ /^correct/ ||
2881: !&Apache::response::show_answer()) {
1.326 albertel 2882: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2883: }
1.24 albertel 2884: }
1.159 albertel 2885: return '';
1.24 albertel 2886: }
2887:
2888: sub end_solved {
1.248 albertel 2889: return '';
2890: }
2891:
2892: sub start_problemtype {
1.326 albertel 2893: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2894: my $result;
1.339 albertel 2895: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2896: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2897: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2898: if (!defined($mode)) { $mode='show'; }
2899: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2900: my $found=0;
2901: foreach my $type (split(',',$for)) {
2902: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2903: }
2904: if ($mode eq 'show' && !$found) {
1.326 albertel 2905: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2906: }
2907: if ($mode eq 'hide' && $found) {
1.326 albertel 2908: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2909: }
2910: } elsif ($target eq 'edit') {
2911: $result .=&Apache::edit::tag_start($target,$token);
2912: $result.=&Apache::edit::select_arg('Mode:','mode',
2913: [['show','Show'],
2914: ['hide','Hide']]
2915: ,$token);
2916: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.512.2.2 raeburn 2917: [ ['exam','Exam/Quiz Problem'],
1.248 albertel 2918: ['survey','Survey'],
1.465 raeburn 2919: ['surveycred','Survey (with credit)'],
2920: ['anonsurvey','Anonymous Survey'],
2921: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2922: ['problem','Homework Problem'],
1.479 raeburn 2923: ['practice','Practice Problem'],
2924: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2925: ,$token);
2926: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2927: } elsif ($target eq 'modified') {
2928: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2929: $safeeval,'mode','for');
2930: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2931: }
2932: return $result;
2933: }
2934:
2935: sub end_problemtype {
1.159 albertel 2936: return '';
1.24 albertel 2937: }
1.34 albertel 2938:
2939: sub start_startouttext {
1.159 albertel 2940: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2941: my @result=(''.'');
2942: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2943:
2944: my $nesting =
2945: &Apache::lonxml::set_state('outtext',
2946: &Apache::lonxml::get_state('outtext')+1);
2947: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2948: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2949: }
1.159 albertel 2950: return (@result);
1.34 albertel 2951: }
1.159 albertel 2952:
1.34 albertel 2953: sub end_startouttext {
1.326 albertel 2954: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2955: my $result='';
2956: my $text='';
2957: if ($target eq 'edit') {
1.424 foxr 2958: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2959: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.512.2.11 raeburn 2960: $result.=&Apache::edit::start_table($token)."<tr><td>".&Apache::loncommon::insert_folding_button()
2961: ." ".&mt('Text Block')."</td>"
1.438 bisitz 2962: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2963: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 2964: .'</span></td>'
1.512.2.12 raeburn 2965: .'<td><span id="math_'.$areaid.'">';
2966: if ($env{'environment.nocodemirror'}) {
2967: $result.=&Apache::lonhtmlcommon::dragmath_button($areaid,1);
2968: } else {
2969: $result.=' ';
2970: }
2971: $result.='</span></td>'
1.474 raeburn 2972: .'<td>'
2973: .&Apache::edit::insertlist($target,$token)
2974: .'</td>'
1.512.2.5 raeburn 2975: .'<td class="LC_edit_problem_latexhelper">' .
1.474 raeburn 2976: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2977: &Apache::edit::end_row().
1.362 albertel 2978: &Apache::edit::start_spanning_row()."\n".
1.255 www 2979: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2980: }
2981: if ($target eq 'modified') {
1.219 albertel 2982: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2983: }
2984: if ($target eq 'tex') {
2985: $result .= '\noindent ';
2986: }
2987: return $result;
1.34 albertel 2988: }
1.159 albertel 2989:
1.34 albertel 2990: sub start_endouttext {
1.159 albertel 2991: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2992: my $result='';
2993: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2994: if ($target eq "modified") {
2995: $result='<endouttext />'.
1.377 albertel 2996: &Apache::edit::handle_insertafter('startouttext');
2997: }
1.404 albertel 2998:
2999: my $nesting =
3000: &Apache::lonxml::set_state('outtext',
3001: &Apache::lonxml::get_state('outtext')-1);
3002: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
3003: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
3004: &Apache::lonxml::set_state('outtext', 0);
3005: }
1.159 albertel 3006: return $result;
1.34 albertel 3007: }
1.159 albertel 3008:
1.34 albertel 3009: sub end_endouttext {
1.159 albertel 3010: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3011: my @result=('','');
3012: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
3013: return (@result);
1.34 albertel 3014: }
1.159 albertel 3015:
1.45 albertel 3016: sub delete_startouttext {
1.326 albertel 3017: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
3018: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 3019: my $text=$$parser['-1']->get_text("/endouttext");
3020: my $ntoken=$$parser['-1']->get_token();
3021: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
3022: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
3023: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
3024: # they did the last time round
3025: &Apache::lonxml::increasedepth($ntoken);
3026: &Apache::lonxml::decreasedepth($ntoken);
3027: return 1;
1.193 www 3028: }
3029:
3030: sub start_simpleeditbutton {
3031: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3032: my $result='';
1.284 albertel 3033: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 3034: ($target eq 'web') &&
1.330 albertel 3035: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 3036: my $url=$env{'request.noversionuri'};
1.193 www 3037: $url=~s/\?.*$//;
1.367 albertel 3038: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 3039: # Warning makes more sense and is more important on edit screen
1.442 bisitz 3040: # $result='<p class="LC_warning">'
3041: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
3042: # .&Apache::loncommon::help_open_topic('Caching')
3043: # .'</p>';
1.486 www 3044: $result.=&Apache::loncommon::head_subbox(
3045: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 3046: .&Apache::lonhtmlcommon::add_item_funclist(
3047: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
3048: .&mt('Edit').'</a>')
1.486 www 3049: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 3050:
1.193 www 3051: }
3052: return $result;
3053: }
3054:
3055: sub end_simpleeditbutton {
3056: return '';
1.45 albertel 3057: }
1.34 albertel 3058:
1.428 raeburn 3059: sub practice_problem_header {
3060: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
3061: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
3062: '</span>';
3063: }
3064:
1.479 raeburn 3065: sub randomizetry_problem_header {
3066: my ($problemstatus,$reqtries) = @_;
3067: my ($header,$text);
3068: if ($reqtries > 1) {
3069: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
3070: if (($problemstatus eq 'no') ||
3071: ($problemstatus eq 'no_feedback_ever')) {
3072: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3073: } else {
3074: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3075: }
3076: } else {
3077: $header = &mt('New Problem Variation Each Try');
3078: if (($problemstatus eq 'no') ||
3079: ($problemstatus eq 'no_feedback_ever')) {
3080: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
3081:
3082: } else {
3083: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
3084: }
3085: }
3086: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
3087: '<span class="LC_info">'.$text.'</span><hr />';
3088: }
3089:
3090: sub randomizetry_part_header {
3091: my ($problemstatus,$reqtries,$num) = @_;
3092: my ($header,$text);
3093: if ($reqtries eq 'none') {
3094: $header = &mt('No Question Variation');
3095: $text = &mt('For this question there will no new variation after a try.');
3096: } elsif ($reqtries > 1) {
3097: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
3098: if (($problemstatus eq 'no') ||
3099: ($problemstatus eq 'no_feedback_ever')) {
3100: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3101: } else {
3102: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3103: }
3104: } else {
3105: $header = &mt('New Question Variation For Each Try');
3106: if (($problemstatus eq 'no') ||
3107: ($problemstatus eq 'no_feedback_ever')) {
3108: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
3109: } else {
3110: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
3111: }
3112: }
3113: my $output;
3114: if ($num > 1) {
3115: $output .= '<hr />';
3116: }
3117: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
3118: '<span class="LC_info">'.$text.'</span><br /><br />';
3119: return $output;
3120: }
3121:
1.1 albertel 3122: 1;
3123: __END__
1.435 jms 3124:
3125: =pod
3126:
3127: =back
3128:
3129: =cut
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