Annotation of loncom/homework/structuretags.pm, revision 1.512.2.21
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.512.2.21! raeburn 4: # $Id: structuretags.pm,v 1.512.2.20 2019/11/04 18:01:04 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"}) ;
1.512.2.18 raeburn 345: if (( \$(this.form).attr("id") == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
1.512.2.9 raeburn 346: if (buttonId != "all_submit") {
347: \$( ".LC_status_"+buttonId ).hide();
1.512.2.18 raeburn 348: }
349: if (( "#"+buttonId+"_pressed" ).length) {
350: \$( "#"+buttonId+"_pressed" ).val( "1" );
1.512.2.9 raeburn 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"});
1.512.2.18 raeburn 363: if (( \$(this.form).attr("id") == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
364: if (( "#"+buttonId+"_pressed" ).length) {
365: \$( "#"+buttonId+"_pressed" ).val( "" );
1.512.2.9 raeburn 366: }
367: }
368: \$( ".LC_hwk_submit" ).prop( "disabled", false);
369: \$( ".LC_textline" ).prop( "readonly", false);
370: submithandled = 0;
371: keypresshandled = 0;
372: }, timeout);
373: }
374: return true;
375: }
376: }
377: });
378: }
379: });
380:
1.483 raeburn 381: // ]]>
1.400 albertel 382: </script>
383: JS
384: }
385:
1.416 raeburn 386: sub setmode_javascript {
387: return <<"ENDSCRIPT";
388: <script type="text/javascript">
1.485 raeburn 389: // <![CDATA[
1.416 raeburn 390: function setmode(form,probmode) {
1.512.2.13 raeburn 391: var initial = form.problemmode.value;
1.416 raeburn 392: form.problemmode.value = probmode;
393: form.submit();
1.512.2.13 raeburn 394: form.problemmode.value = initial;
1.416 raeburn 395: }
1.485 raeburn 396: // ]]>
1.416 raeburn 397: </script>
398: ENDSCRIPT
399: }
400:
1.48 albertel 401: sub page_start {
1.345 albertel 402: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
403: $extra_head)=@_;
1.159 albertel 404: my %found;
1.207 albertel 405: foreach my $taginside (@$tagstack) {
1.159 albertel 406: foreach my $taglookedfor ('html','body','form') {
407: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
408: }
409: }
410:
1.343 albertel 411: if ($target eq 'tex') {
412: return
413: &Apache::londefdef::start_html($target,$token,$tagstack,
414: $parstack,$parser,$safeeval);
415: }
416:
1.474 raeburn 417: $extra_head .= &homework_js().
418: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
419: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
1.512.2.12 raeburn 420: my %textarea_args;
421: if (($env{'request.state'} ne 'construct') ||
422: ($env{'environment.nocodemirror'})) {
423: %textarea_args = (
1.474 raeburn 424: dragmath => 'math',
425: );
1.512.2.12 raeburn 426: }
1.474 raeburn 427: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 428: }
1.478 raeburn 429: my $is_task = ($env{'request.uri'} =~ /\.task$/);
1.512.2.9 raeburn 430: my ($needs_upload,$partlist);
1.495 raeburn 431: my ($symb)= &Apache::lonnet::whichuser();
432: my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
1.478 raeburn 433: if ($is_task) {
1.495 raeburn 434: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
1.493 raeburn 435: } else {
436: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.uploadedfiletypes") ne '') {
1.495 raeburn 437: unless ($env{'request.state'} eq 'construct') {
438: my $navmap = Apache::lonnavmaps::navmap->new();
439: if (ref($navmap)) {
440: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 441: my $is_page;
442: if (ref($mapres)) {
443: $is_page = $mapres->is_page();
444: }
445: unless ($is_page) {
1.495 raeburn 446: $needs_upload = 1;
447: }
1.512.2.9 raeburn 448: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
449: my $res = $navmap->getBySymb($symb);
450: if (ref($res)) {
451: $partlist = $res->parts();
452: }
453: }
1.495 raeburn 454: }
455: }
1.493 raeburn 456: } else {
457: unless ($env{'request.state'} eq 'construct') {
458: my $navmap = Apache::lonnavmaps::navmap->new();
459: if (ref($navmap)) {
1.495 raeburn 460: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 461: my $is_page;
462: if (ref($mapres)) {
463: $is_page = $mapres->is_page();
464: }
1.512.2.9 raeburn 465: if ($is_page) {
466: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
467: my $res = $navmap->getBySymb($symb);
468: if (ref($res)) {
469: $partlist = $res->parts();
470: }
471: }
472: } else {
1.495 raeburn 473: my $res = $navmap->getBySymb($symb);
474: if (ref($res)) {
1.512.2.9 raeburn 475: $partlist = $res->parts();
1.495 raeburn 476: if (ref($partlist) eq 'ARRAY') {
477: foreach my $part (@{$partlist}) {
478: my @types = $res->responseType($part);
479: my @ids = $res->responseIds($part);
480: for (my $i=0; $i < scalar(@ids); $i++) {
481: if ($types[$i] eq 'essay') {
482: my $partid = $part.'_'.$ids[$i];
483: if (&Apache::lonnet::EXT("resource.$partid.uploadedfiletypes") ne '') {
484: $needs_upload = 1;
485: last;
486: }
1.493 raeburn 487: }
488: }
489: }
1.495 raeburn 490: }
491: }
1.493 raeburn 492: }
493: }
494: }
495: }
1.495 raeburn 496: if ($needs_upload) {
1.512.2.17 raeburn 497: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js().
498: '<script type="text/javascript" '.
499: 'src="/res/adm/includes/file_upload.js"></script>';
1.495 raeburn 500: }
1.478 raeburn 501: }
1.425 raeburn 502:
1.344 albertel 503: my %body_args;
504: if (defined($found{'html'})) {
505: $body_args{'skip_phases'}{'head'}=1;
506: } else {
1.343 albertel 507:
1.345 albertel 508: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 509:
1.379 albertel 510: $extra_head .= &Apache::londefdef::generate_css_links();
511:
1.384 albertel 512: if ($env{'request.state'} eq 'construct') {
1.343 albertel 513: $extra_head.=&Apache::edit::js_change_detection().
514: "<script type=\"text/javascript\">\n".
515: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
516: &Apache::loncommon::browser_and_searcher_javascript().
517: "\n</script>\n";
1.512.2.9 raeburn 518: if ($target eq 'edit') {
519: $extra_head .= &Apache::edit::js_update_linknum();
520: }
1.343 albertel 521: }
1.159 albertel 522: }
1.343 albertel 523:
1.446 bisitz 524: my $pageheader = '';
1.344 albertel 525: if (defined($found{'body'})) {
526: $body_args{'skip_phases'}{'body'}=1;
527: } elsif (!defined($found{'body'})
528: && $env{'request.state'} eq 'construct') {
1.343 albertel 529: if ($target eq 'web' || $target eq 'edit') {
1.512.2.3 raeburn 530: # Breadcrumbs for Authoring Space
1.450 bisitz 531: &Apache::lonhtmlcommon::clear_breadcrumbs();
532: &Apache::lonhtmlcommon::add_breadcrumb({
1.512.2.3 raeburn 533: 'text' => 'Authoring Space',
1.497 raeburn 534: 'href' => &Apache::loncommon::authorspace($env{'request.uri'}),
1.450 bisitz 535: });
1.460 droeschl 536: # breadcrumbs (and tools) will be created
537: # in start_page->bodytag->innerregister
538:
1.450 bisitz 539: # FIXME Where are we?
540: # &Apache::lonhtmlcommon::add_breadcrumb({
541: # 'text' => 'Problem Editing', # 'Problem Testing'
542: # 'href' => '',
543: # });
1.460 droeschl 544: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 545: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 546: }
1.272 albertel 547: } elsif (!defined($found{'body'})) {
1.343 albertel 548: my %add_entries;
1.159 albertel 549: my $background=&Apache::lonxml::get_param('background',$parstack,
550: $safeeval);
1.343 albertel 551: if ($background ne '' ) {
552: $add_entries{'background'} = $background;
553: }
1.344 albertel 554:
1.290 albertel 555: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
556: $safeeval);
1.446 bisitz 557: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 558:
1.446 bisitz 559: $body_args{'bgcolor'} = $bgcolor;
560: # $body_args{'no_title'} = 1;
561: $body_args{'force_register'} = 1;
562: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 563: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 564: $body_args{'only_body'} = 1;
1.512.2.7 raeburn 565: } elsif ($target eq 'web') {
566: $body_args{'print_suppress'} = 1;
1.446 bisitz 567: }
1.344 albertel 568: }
1.365 albertel 569: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 570: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
571: \%body_args);
1.446 bisitz 572: $page_start .= $pageheader;
1.462 raeburn 573: if (!defined($found{'body'})
574: && $env{'request.state'} ne 'construct'
575: && ($target eq 'web' || $target eq 'webgrade')) {
576:
577: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
578: if ($symb eq '' && !$publicuser) {
579: $page_start .= '<p class="LC_info">'
580: .&mt('Browsing resource, all submissions are temporary.')
581: .'</p>';
1.457 bisitz 582: }
1.344 albertel 583: }
584:
1.409 albertel 585: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 586: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 587: }
588: my $form_tag_start;
589: if (!defined($found{'form'})) {
1.337 albertel 590: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 591: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 592: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 593: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 594: $form_tag_start.=$uri.'" ';
595: if ($target eq 'edit') {
596: $form_tag_start.=&Apache::edit::form_change_detection();
597: }
1.493 raeburn 598: my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
599: my ($path,$multiresp) =
600: &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
1.495 raeburn 601: if (($is_task) || ($needs_upload)) {
602: $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
1.478 raeburn 603: }
1.368 albertel 604: $form_tag_start.='>'."\n";
1.355 albertel 605:
606: if ($symb =~ /\S/) {
607: $symb=
608: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
609: $form_tag_start.=
1.368 albertel 610: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 611: }
1.159 albertel 612: }
1.512.2.9 raeburn 613: return ($page_start,$form_tag_start,$partlist);
1.105 albertel 614: }
615:
1.141 matthew 616: #use Time::HiRes();
1.105 albertel 617: sub get_resource_name {
1.159 albertel 618: my ($parstack,$safeeval)=@_;
1.388 foxr 619: my $name;
1.204 albertel 620: if (defined($Apache::lonhomework::name)) {
1.388 foxr 621: $name = $Apache::lonhomework::name;
622: } else {
623: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 624: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 625: if ($name eq '') {
626: $name=&Apache::lonnet::EXT('resource.title');
627: if ($name eq 'con_lost') { $name = ''; }
628: }
629: if ($name!~/\S+/) {
630: $name=$env{'request.uri'};
631: $name=~s-.*/([^/]+)$-$1-;
632: }
633: # The name has had html tags escaped:
634:
635: $name=~s/</</gs;
636: $name=~s/>/>/gs;
637:
638: $Apache::lonhomework::name=$name;
1.204 albertel 639: }
1.159 albertel 640: return $name;
1.105 albertel 641: }
642:
643: sub setup_rndseed {
1.512.2.9 raeburn 644: my ($safeeval,$target,$probpartlist)=@_;
1.367 albertel 645: my ($symb)=&Apache::lonnet::whichuser();
1.512.2.19 raeburn 646: my ($questiontype,$set_safespace,$rndseed,$numtries,$reqtries);
1.479 raeburn 647: if ($target eq 'analyze') {
648: $questiontype = $env{'form.grade_questiontype'};
649: }
650: unless (defined($questiontype)) {
651: $questiontype = $Apache::lonhomework::type;
652: }
1.512.2.19 raeburn 653: if ($Apache::lonhomework::type eq 'randomizetry') {
654: my $partfortries = $Apache::inputtags::part;
655: if (ref($probpartlist) eq 'ARRAY') {
656: if ((@{$probpartlist} == 1) && ($probpartlist->[0] ne $Apache::inputtags::part)) {
657: $partfortries = $probpartlist->[0];
1.512.2.21! raeburn 658: if (&Apache::lonnet::EXT("resource.$partfortries.questiontype") eq 'randomizetry') {
! 659: $partfortries = $probpartlist->[0];
! 660: } else {
! 661: $partfortries = '';
! 662: }
1.512.2.19 raeburn 663: }
664: }
1.512.2.21! raeburn 665: if ($partfortries ne '') {
! 666: $numtries = $Apache::lonhomework::history{"resource.$partfortries.tries"};
! 667: $reqtries = &Apache::lonnet::EXT("resource.$partfortries.randomizeontries");
! 668: }
1.512.2.19 raeburn 669: }
1.512.2.14 raeburn 670: if (($env{'request.state'} eq "construct")
671: || ($symb eq '')
672: || ($Apache::lonhomework::type eq 'practice')
673: || ($Apache::lonhomework::history{'resource.CODE'})
674: || (($env{'form.code_for_randomlist'}) && ($target eq 'analyze'))) {
1.316 www 675: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 676: ['rndseed']);
1.284 albertel 677: $rndseed=$env{'form.rndseed'};
1.159 albertel 678: if (!$rndseed) {
1.162 albertel 679: $rndseed=$Apache::lonhomework::history{'rndseed'};
680: if (!$rndseed) {
681: $rndseed=time;
682: }
1.512.2.14 raeburn 683: unless ($env{'form.code_for_randomlist'}) {
684: $env{'form.rndseed'}=$rndseed;
685: }
1.162 albertel 686: }
1.512.2.20 raeburn 687: if ((($env{'request.state'} eq "construct") || ($symb eq '')) &&
1.479 raeburn 688: ($Apache::lonhomework::type eq 'randomizetry')) {
1.512.2.19 raeburn 689: if ($numtries) {
690: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
691: my $inc = int($numtries/$reqtries);
692: $rndseed += $inc;
693: } else {
694: $rndseed += $numtries;
695: }
1.479 raeburn 696: }
1.480 raeburn 697: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 698: }
1.374 albertel 699: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
700: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 701: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 702: srand(time);
703: $rndseed=int(rand(2100000000));
1.284 albertel 704: $env{'form.rndseed'}=$rndseed;
705: delete($env{'form.resetdata'});
706: delete($env{'form.newrandomization'});
1.159 albertel 707: }
1.488 www 708: $rndseed=~s/\,/\:/g;
709: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 710: if (defined($rndseed)) {
711: my ($c1,$c2)=split(/\:/,$rndseed);
712: unless ($c2) { $c2=0; }
713: unless (($c1==int($c1)) && ($c2==int($c2))) {
714: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
715: }
1.187 albertel 716: }
1.512.2.14 raeburn 717: if (($env{'form.code_for_randomlist'}) && ($target eq 'analyze')) {
718: $env{'form.CODE'} = $env{'form.code_for_randomlist'};
719: $rndseed=&Apache::lonnet::rndseed();
720: undef($env{'form.CODE'});
721: } elsif ($Apache::lonhomework::history{'resource.CODE'}) {
1.247 albertel 722: $rndseed=&Apache::lonnet::rndseed();
723: }
1.479 raeburn 724: $set_safespace = 1;
725: } elsif ($questiontype eq 'randomizetry') {
726: if ($target eq 'analyze') {
727: if (defined($env{'form.grade_rndseed'})) {
728: $rndseed = $env{'form.grade_rndseed'};
729: }
730: }
731: unless (($target eq 'analyze') && (defined($rndseed))) {
732: $rndseed=&Apache::lonnet::rndseed();
1.512.2.19 raeburn 733: my $curr_try = $numtries;
1.479 raeburn 734: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
735: $curr_try ++;
736: }
737: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
738: $rndseed = $1;
739: }
740: if ($curr_try) {
741: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
742: my $inc = int(($curr_try-1)/$reqtries);
743: $rndseed += $inc;
744: } else {
745: $rndseed += $curr_try;
746: }
747: }
748: }
749: $set_safespace = 1;
1.512.2.9 raeburn 750: if ($target eq 'grade') {
751: $Apache::lonhomework::rawrndseed = $rndseed;
752: }
1.479 raeburn 753: }
754: if ($set_safespace) {
755: if ($safeeval) {
756: &Apache::lonxml::debug("Setting rndseed to $rndseed");
757: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
758: }
759: }
760: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
761: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 762: }
763: return $rndseed;
1.105 albertel 764: }
765:
1.268 albertel 766: sub remember_problem_state {
767: return '
1.284 albertel 768: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
769: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
770: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 771: }
772:
1.487 www 773: sub problem_edit_action_button {
774: my ($name,$action,$accesskey,$text,$flag)=@_;
775: my $actionscript="setmode(this.form,'$action')";
776: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
777: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
778: }
779:
1.423 www 780: sub problem_edit_buttons {
1.487 www 781: my ($mode)=@_;
1.512.2.11 raeburn 782: # Buttons that save
783: my $result = '<div style="float:right">';
784: if ($mode eq 'editxml') {
785: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
786: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
787: } else {
788: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
789: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
790: }
791: $result.="\n</div>\n";
1.487 www 792: # Buttons that do not save
1.512.2.11 raeburn 793: $result .= '<div>'.
1.487 www 794: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
795: if ($mode eq 'editxml') {
796: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
797: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
1.512.2.11 raeburn 798: if ($env{'environment.nocodemirror'}) {
799: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
800: }
1.487 www 801: } else {
802: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
803: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
804: }
805: $result.="\n</div>";
806: return $result;
1.423 www 807: }
808:
809: sub problem_edit_header {
1.512.2.11 raeburn 810: my ($mode)=@_;
811: my $return = '<input type="hidden" name="submitted" value="edit" />'.
1.487 www 812: &remember_problem_state('edit').'
1.512.2.11 raeburn 813: <div class="LC_edit_problem_header">
814: <div class="LC_edit_problem_header_title">
815: '.&mt('Problem Editing').$mode.&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
816: </div><div class="LC_edit_actionbar" id="actionbar">'.
817: '<input type="hidden" name="problemmode" value="saveedit" />'.
818: &problem_edit_buttons();
819:
820: $return .= '</div></div>' . &Apache::lonxml::message_location();
821: $return .= '<link rel="stylesheet" href="/adm/codemirror/codemirror-combined.css" />
822: <script type="text/javascript" src="/adm/codemirror/codemirror-compressed-colorful.js"></script>';
823:
824: $return .= '<script type="text/javascript" src="/adm/jQuery/addons/jquery-scrolltofixed.js"></script>
825: <script type="text/javascript">
826: // unless internet explorer
827: if (!(window.navigator.appName == "Microsoft Internet Explorer" && (document.documentMode || document.compatMode))){
828: $(document).ready(
829: function() {
830: $(\'.LC_edit_actionbar\').scrollToFixed(
831: {
832: fixed: function(){
833: //$(this).find(\'.LC_edit_actionbar\').css(\'height\', \'31px\');
834: $(this).find(\'.LC_edit_actionbar\');
835: }
836: }
837: );
838: }
839: );
840: }
841: </script>
842: <table id="LC_edit_problem_colorful" border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
843: return $return;
1.105 albertel 844: }
845:
1.512.2.11 raeburn 846:
1.105 albertel 847: sub problem_edit_footer {
1.512.2.11 raeburn 848: my $resource = $env{'request.ambiguous'};
1.412 albertel 849: return '</td></tr></table><br />
850: <div class="LC_edit_problem_footer">
1.453 bisitz 851: <hr />'.
1.423 www 852: &problem_edit_buttons().'
1.459 bisitz 853: <hr style="clear:both;" />
1.512.2.11 raeburn 854: <script type="text/javascript">
855: restoreState("'.$resource.'");
856: restoreScrollPosition("'.$resource.'");
857: </script>
1.412 albertel 858: </div>
859: '.
1.342 albertel 860: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 861: }
862:
1.235 albertel 863: sub option {
864: my ($value,$name) = @_;
865: my $result ="<option value='".$value."' ";
1.284 albertel 866: if ($env{'form.'.$name} eq $value) {
1.235 albertel 867: $result.=" selected='on' ";
868: }
869: $result.='>';
870: return $result;
871: }
872:
1.105 albertel 873: sub problem_web_to_edit_header {
1.159 albertel 874: my ($rndseed)=@_;
1.406 albertel 875: my $result .= '<div class="LC_edit_problem_header">';
876:
877: if (!$Apache::lonhomework::parsing_a_task) {
878: $result .=
879: '<div class="LC_edit_problem_header_title">'.
880: &mt('Problem Testing').
881: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
882: '</div>';
883: } else {
884: $result .=
885: '<div class="LC_edit_problem_header_title">'.
886: &mt('Task Testing').
887: '</div>';
888: }
889:
1.315 albertel 890: my $show_all_foils_text =
891: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 892: &mt('Show All Instances')
893: : &mt('Show All Foils');
1.315 albertel 894:
1.452 bisitz 895: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
896: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 897: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 898: $show_all.= ' /> '.$show_all_foils_text
899: .'</label></span>';
1.406 albertel 900:
901:
1.384 albertel 902:
1.406 albertel 903: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 904: if (!$Apache::lonhomework::parsing_a_task) {
905: $result.="
1.406 albertel 906: <div class='LC_edit_problem_header_row1'>
907: <span class=\"LC_nobreak\">
1.405 albertel 908: ".&mt("Problem Status:")."
1.235 albertel 909: <select name='problemstate'>
1.270 albertel 910: <option value=''></option>
1.235 albertel 911: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
912: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
913: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
914: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
915: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
916: </select>
1.406 albertel 917: </span>
918: <span class=\"LC_nobreak\">
1.405 albertel 919: ".&mt("Problem Type:")."
1.235 albertel 920: <select name='problemtype'>
1.270 albertel 921: <option value=''></option>
1.512.2.1 raeburn 922: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 923: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 924: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 925: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
926: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
927: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 928: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 929: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 930: </select>
1.406 albertel 931: </span>
932: $show_all
933: </div>
934: <div class='LC_edit_problem_header_row2'>
935: <span class=\"LC_nobreak\">
1.405 albertel 936: ".&mt("Feedback Mode:")."
1.235 albertel 937: <select name='problemstatus'>
938: <option value=''></option>
1.242 albertel 939: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.512.2.6 raeburn 940: ".&option('no', 'problemstatus').&mt("Don't Show Incorrect/Correct Feedback")."</option>
1.405 albertel 941: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 942: </select>
1.406 albertel 943: </span>
944: ";
945:
1.376 albertel 946: } elsif ($Apache::lonhomework::parsing_a_task) {
947: $result.="
1.406 albertel 948: <div class='LC_edit_problem_header_row1'>
949: <span class=\"LC_nobreak\">
1.405 albertel 950: ".&mt("Problem Status:")."
1.376 albertel 951: <select name='problemstate'>
952: <option value=''></option>
953: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
954: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
955: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
956: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
957: </select>
1.406 albertel 958: </span>
959: $show_all
960: ";
961: }
962: $result.='
963: <span class="LC_nobreak">
964: '.&mt('Apply style file: ').'
965: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
966: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
967: </span>
1.422 www 968: </div>
969: <div class="LC_edit_problem_header_row1">'.
970: &Apache::lonxml::renderingoptions().'
1.406 albertel 971: </div>
972: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
973: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
974: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
975: </div>
1.453 bisitz 976: <hr />
1.406 albertel 977: <div class="LC_edit_problem_header_randomize_row">
978: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
979: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 980: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 981: $rndseed.'"
982: onchange="javascript:document.lonhomework.changerandseed.click()" />';
983:
984: if (!$Apache::lonhomework::parsing_a_task) {
985: my $numtoanalyze=$env{'form.numtoanalyze'};
986: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 987: $result .= '<span class="LC_nobreak">'.
988: &mt('[_1] for [_2] versions.',
1.416 raeburn 989: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 990: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
991: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 992: $numtoanalyze.'" size="5" />').
993: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
994: '</span>';
995:
1.313 albertel 996: }
1.406 albertel 997:
998: $result.='
999: </div>
1.453 bisitz 1000: <hr />
1.447 bisitz 1001: <div>';
1.416 raeburn 1002: $result.='<input type="hidden" name="problemmode" value="view" />';
1003: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
1004: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
1005: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
1006: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 1007: $result.='
1008: </div>
1.453 bisitz 1009: <hr />
1.409 albertel 1010: '.&Apache::lonxml::message_location().'
1.406 albertel 1011: </div>';
1.159 albertel 1012: return $result;
1.48 albertel 1013: }
1014:
1.65 albertel 1015: sub initialize_storage {
1.357 albertel 1016: my ($given_symb) = @_;
1.353 albertel 1017: undef(%Apache::lonhomework::results);
1018: undef(%Apache::lonhomework::history);
1.357 albertel 1019: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1020: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 1021:
1022: # anonymous users (CODEd exams) have no data
1023: if ($name eq 'anonymous'
1024: && !defined($domain)) {
1025: return;
1026: }
1027:
1.333 albertel 1028: if ($env{'request.state'} eq 'construct'
1029: || $symb eq ''
1030: || $Apache::lonhomework::type eq 'practice') {
1031:
1032: my $namespace = $symb || $env{'request.uri'};
1033: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 1034: ($env{'form.resetdata'} eq &mt('New Problem Variation')
1035: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 1036: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1037: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
1038: &Apache::lonxml::debug("Attempt reset");
1039: }
1.159 albertel 1040: %Apache::lonhomework::history=
1.333 albertel 1041: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.512.2.9 raeburn 1042: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1043: &Apache::lonxml::debug("Return message of $temp");
1044: } else {
1045: %Apache::lonhomework::history=
1046: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1047: }
1.353 albertel 1048:
1.159 albertel 1049: #ignore error conditions
1.512.2.9 raeburn 1050: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1051: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 1052: }
1053:
1.435 jms 1054: =pod
1055:
1056: =item finalize_storage()
1057:
1.512.2.9 raeburn 1058: Stores away the result hash to a student's environment;
1059: checks form.grade_ for specific values, otherwise stores
1060: to the running user's environment.
1061:
1062: &check_correctness_changes() is called in two circumstances
1063: in which the results hash is to be stored permanently, for
1064: grading triggered by a student's submission, where feedback on
1065: correctness is to be provided to the student.
1066:
1067: 1. Immediately prior to storing the results hash
1068:
1069: To handle the case where a student's submission (and award) were
1070: stored after history was retrieved in &initialize_storage(), e.g.,
1071: if a student submitted answers in quick succession (e.g., from
1072: multiple tabs). &Apache::inputtags::hidealldata() is called for
1073: any parts with out-of-order storage (i.e., correct then incorrect,
1074: where awarded >= 1 when correct).
1075:
1076: 2. Immediately after storing the results hash
1077:
1078: To handle the case where lond on the student's homeserver returns
1079: delay:N -- where N is the number of transactions between the last
1080: retrieved in &initialize_storage() and the last stored immediately
1081: before permanent storage of the current transaction via
1082: lond::store_handler(). &Apache::grades::makehidden() is called
1083: for any parts with out-of-order storage (i.e., correct then incorrect,
1084: where awarded >= 1 when correct).
1085:
1086: Will call &store_aggregates() to increment totals for attempts,
1087: students, and corrects, if running user has student role.
1.435 jms 1088:
1089: =cut
1090:
1091:
1.65 albertel 1092: sub finalize_storage {
1.357 albertel 1093: my ($given_symb) = @_;
1.159 albertel 1094: my $result;
1.289 albertel 1095: if (%Apache::lonhomework::results) {
1.323 albertel 1096: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
1097: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 1098: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1099: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 1100: if ($env{'request.state'} eq 'construct'
1101: || $symb eq ''
1102: || $Apache::lonhomework::type eq 'practice') {
1103: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 1104: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 1105: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 1106: $namespace,'',$domain,$name);
1.159 albertel 1107: &Apache::lonxml::debug('Construct Store return message:'.$result);
1108: } else {
1.512.2.9 raeburn 1109: my ($laststore,$checkedparts,@parts,%postcorrect);
1110: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1111: (!$Apache::lonhomework::scantronmode) && (!defined($env{'form.grade_symb'})) &&
1112: (!defined($env{'form.grade_courseid'}))) {
1113: if ($Apache::lonhomework::history{'version'}) {
1114: $laststore = $Apache::lonhomework::history{'version'}.'='.
1115: $Apache::lonhomework::history{'timestamp'};
1116: } else {
1117: $laststore = '0=0';
1118: }
1119: my %record = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1120: if ($record{'version'}) {
1121: my ($newversion,$oldversion,$oldtimestamp);
1122: if ($Apache::lonhomework::history{'version'}) {
1123: $oldversion = $Apache::lonhomework::history{'version'};
1124: $oldtimestamp = $Apache::lonhomework::history{'timestamp'};
1125: } else {
1126: $oldversion = 0;
1127: $oldtimestamp = 0;
1128: }
1129: if ($record{'version'} > $oldversion) {
1130: if ($record{'timestamp'} >= $oldtimestamp) {
1131: $laststore = $record{'version'}.'='.$record{'timestamp'};
1132: $newversion = $record{'version'} + 1;
1133: $checkedparts = 1;
1134: foreach my $key (keys(%Apache::lonhomework::results)) {
1135: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1136: my $part = $1;
1137: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1138: push(@parts,$part);
1139: }
1140: }
1141: }
1142: if (@parts) {
1143: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1144: \%record,\@parts,$newversion,
1145: $oldversion);
1146: if (@parts_to_hide) {
1147: foreach my $part (@parts_to_hide) {
1148: $postcorrect{$part} = 1;
1149: &Apache::inputtags::hidealldata($part);
1150: }
1151: }
1152: }
1153: }
1154: }
1155: }
1156: }
1.159 albertel 1157: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
1.512.2.9 raeburn 1158: $symb,$courseid,$domain,$name,$laststore);
1159: if ($result =~ /^delay\:(\d+)$/) {
1160: my $numtrans = $1;
1161: my ($oldversion) = split(/=/,$laststore);
1162: if ($numtrans) {
1163: my $newversion = $oldversion + 1 + $numtrans;
1164: my @possparts;
1165: if ($checkedparts) {
1166: foreach my $part (@parts) {
1167: unless ($postcorrect{$part}) {
1168: push(@possparts,$part);
1169: }
1170: }
1171: } else {
1172: foreach my $key (keys(%Apache::lonhomework::results)) {
1173: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1174: my $part = $1;
1175: unless ($postcorrect{$part}) {
1176: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1177: push(@possparts,$part);
1178: }
1179: }
1180: }
1181: }
1182: }
1183: if (@possparts) {
1184: my %newrecord = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1185: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1186: \%newrecord,\@possparts,$newversion,
1187: $oldversion);
1188: if (@parts_to_hide) {
1189: my $partslist = join(',',@parts_to_hide);
1190: &Apache::grades::makehidden($newversion,$partslist,\%newrecord,$symb,$domain,$name,1);
1191: }
1192: }
1193: }
1194: }
1.159 albertel 1195: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 1196: &store_aggregates($symb,$courseid);
1.159 albertel 1197: }
1.323 albertel 1198: } else {
1199: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 1200: }
1.159 albertel 1201: return $result;
1.65 albertel 1202: }
1203:
1.435 jms 1204: =pod
1205:
1.512.2.9 raeburn 1206: =item check_correctness_changes()
1207:
1208: For all parts for which current results contain a solved status
1209: of "incorrect_attempted", check if there was a transaction in which
1210: solved was set to "correct_by_student" in the time since the last
1211: transaction (retrieved when &initialize_storage() was called i.e.,
1212: when &start_problem() was called), unless:
1213: (a) questiontype parameter is set to survey or anonymous survey (+/- credit)
1214: (b) problemstatus is set to no or no_feedback_ever
1215: If such a transaction exists, and did not occur after "reset status"
1216: by a user with grading privileges, then the current transaction is an
1217: example of an out-of-order transaction (i.e., incorrect occurring after
1218: correct). Accordingly, the current transaction should be hidden.
1219:
1220: =cut
1221:
1222:
1223: sub check_correctness_changes {
1224: my ($symb,$courseid,$domain,$name,$record,$parts,$newversion,$oldversion) = @_;
1225: my @parts_to_hide;
1226: unless ((ref($record) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
1227: return @parts_to_hide;
1228: }
1229: if (@{$parts}) {
1230: my $usec;
1231: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1232: ($env{'request.course.id'} eq $courseid)) {
1233: $usec = $env{'request.course.sec'};
1234: } else {
1235: $usec = &Apache::lonnet::getsection($domain,$name,$courseid);
1236: }
1237: foreach my $id (@{$parts}) {
1238: next if (($Apache::lonhomework::results{'resource.'.$id.'.type'} =~ /survey/) ||
1239: (&Apache::lonnet::EXT("resource.$id.problemstatus",$symb,
1240: $domain,$name,$usec,undef,$courseid) =~ /^no/));
1241: my $reset;
1242: for (my $i=$newversion-1; $i>=$oldversion; $i--) {
1243: if (($record->{$i.':resource.'.$id.'.regrader'}) &&
1244: ($record->{$i.':resource.'.$id.'.tries'} eq '') &&
1245: ($record->{$i.':resource.'.$id.'.award'} eq '')) {
1246: $reset = 1;
1247: } elsif (($record->{$i.":resource.$id.solved"} eq 'correct_by_student') &&
1248: ($record->{$i.":resource.$id.awarded"} >= 1)) {
1249: unless ($reset) {
1250: push(@parts_to_hide,$id);
1251: last;
1252: }
1253: }
1254: }
1255: }
1256: }
1257: return @parts_to_hide;
1258: }
1259:
1260: =pod
1261:
1.435 jms 1262: item store_aggregates()
1263:
1264: Sends hash of values to be incremented in nohist_resourcetracker.db
1265: for the course. Increments total number of attempts, unique students
1266: and corrects for each part for an instance of a problem, as appropriate.
1267:
1268: =cut
1269:
1.285 raeburn 1270: sub store_aggregates {
1271: my ($symb,$courseid) = @_;
1.479 raeburn 1272: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 1273: my @parts;
1.288 albertel 1274: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
1275: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 1276: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 1277: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 1278: push(@parts, $1);
1.285 raeburn 1279: }
1280: }
1.286 albertel 1281: foreach my $part (@parts) {
1.470 raeburn 1282: if ($env{'request.role'} =~/^st/) {
1283: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
1284: eq 'APPROX_ANS' ||
1285: $Apache::lonhomework::results{'resource.'.$part.'.award'}
1286: eq 'EXACT_ANS') {
1287: $aggregate{$symb."\0".$part."\0correct"} = 1;
1288: }
1289: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1290: $aggregate{$symb."\0".$part."\0users"} = 1;
1291: } else {
1292: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1293: if ($last_reset) {
1294: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1295: $aggregate{$symb."\0".$part."\0users"} = 1;
1296: }
1297: }
1298: }
1299: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 1300: }
1.470 raeburn 1301: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 1302: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
1303: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
1304: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
1305: $randtrycounter{$symb."\0".$part} = 1;
1306: } else {
1307: $anoncounter{$symb."\0".$part} = 1;
1308: }
1.470 raeburn 1309: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
1310: if ($needsrelease) {
1311: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
1312: if ($curr_required eq '') {
1.471 raeburn 1313: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1314: } else {
1315: my ($currmajor,$currminor) = split(/\./,$curr_required);
1316: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
1317: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 1318: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1319: }
1.292 raeburn 1320: }
1321: }
1.285 raeburn 1322: }
1323: }
1.512.2.9 raeburn 1324: if (keys(%aggregate) > 0) {
1.289 albertel 1325: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 1326: $cdomain,$cname);
1327: }
1.472 raeburn 1328: if (keys(%anoncounter) > 0) {
1.481 raeburn 1329: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
1330: $cdomain,$cname);
1.472 raeburn 1331: }
1.479 raeburn 1332: if (keys(%randtrycounter) > 0) {
1.481 raeburn 1333: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
1334: $cdomain,$cname);
1.479 raeburn 1335: }
1.292 raeburn 1336: }
1.289 albertel 1337:
1.65 albertel 1338: sub checkout_msg {
1.211 albertel 1339: my %lt=&Apache::lonlocal::texthash(
1340: 'resource'=>'The resource needs to be checked out',
1341: '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.',
1342: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
1.512.2.1 raeburn 1343: 'checkout'=>'Check out Exam for Viewing',
1344: 'checkout?'=>'Check out Exam?');
1.352 albertel 1345: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 1346: return (<<ENDCHECKOUT);
1.211 albertel 1347: <h2>$lt{'resource'}</h2>
1348: <p>$lt{'id_expln'}</p>
1.449 bisitz 1349: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 1350: <form name="checkout" method="post" action="$uri">
1.91 albertel 1351: <input type="hidden" name="doescheckout" value="yes" />
1.512.2.4 raeburn 1352: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onclick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 1353: </form>
1354: ENDCHECKOUT
1355: }
1356:
1.252 albertel 1357: sub firstaccess_msg {
1.253 albertel 1358: my ($time,$symb)=@_;
1.414 albertel 1359: my $result;
1360: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1361: if ($interval[1] eq 'map') {
1362: my ($map)=&Apache::lonnet::decode_symb($symb);
1363: my $foldertitle=&Apache::lonnet::gettitle($map);
1364:
1365: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 1366: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
1367: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1368: ,$foldertitle,$time)."</p>";
1.414 albertel 1369: } elsif ($interval[1] eq 'course') {
1370: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 1371: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 1372: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 1373: ,$course,$time)."</p>";
1.414 albertel 1374: } else {
1375: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1376: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1377: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1378: ,$title,$time)."</p>";
1.414 albertel 1379: }
1.352 albertel 1380: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1381: my $buttontext = &mt('Show Resource');
1382: my $timertext = &mt('Start Timer?');
1.414 albertel 1383: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1384: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1385: <input type="hidden" name="markaccess" value="yes" />
1.512.2.4 raeburn 1386: <input type="button" name="accessbutton" value="$buttontext" onclick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1387: </form>
1388: ENDCHECKOUT
1.414 albertel 1389: return $result;
1.252 albertel 1390: }
1391:
1.204 albertel 1392: sub init_problem_globals {
1393: my ($type)=@_;
1394: #initialize globals
1.308 foxr 1395: # For problems, we start out in part 0 (outside a <part> tag).
1396: # and part 0 is used to describe the main body of the <problem>
1397: #
1.204 albertel 1398: if ($type eq 'problem') {
1399: $Apache::inputtags::part='0';
1400: @Apache::inputtags::partlist=('0');
1.405 albertel 1401: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1402: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1403:
1.266 albertel 1404: } elsif ($type eq 'library') {
1.204 albertel 1405: $Apache::inputtags::part='';
1406: @Apache::inputtags::partlist=();
1.405 albertel 1407: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1408: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1409:
1.304 albertel 1410: } elsif ($type eq 'Task') {
1411: $Apache::inputtags::part='0';
1412: @Apache::inputtags::partlist=('0');
1.405 albertel 1413: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1414: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1415: }
1.477 www 1416: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1417: @Apache::inputtags::responselist = ();
1418: @Apache::inputtags::importlist = ();
1419: @Apache::inputtags::previous=();
1420: @Apache::inputtags::previous_version=();
1.512.2.10 raeburn 1421: $Apache::inputtags::leniency='';
1.204 albertel 1422: $Apache::structuretags::printanswer='No';
1423: @Apache::structuretags::whileconds=();
1424: @Apache::structuretags::whilebody=();
1425: @Apache::structuretags::whileline=();
1426: $Apache::lonhomework::scantronmode=0;
1.512.2.21! raeburn 1427: $Apache::lonhomework::randomizetrypart=0;
1.204 albertel 1428: undef($Apache::lonhomework::name);
1.358 albertel 1429: undef($Apache::lonhomework::default_type);
1430: undef($Apache::lonhomework::type);
1.204 albertel 1431: }
1432:
1433: sub reset_problem_globals {
1434: my ($type)=@_;
1435: undef(%Apache::lonhomework::history);
1436: undef(%Apache::lonhomework::results);
1437: undef($Apache::inputtags::part);
1.512.2.10 raeburn 1438: undef($Apache::inputtags::leniency);
1.498 raeburn 1439: if ($type eq 'Task') {
1440: undef($Apache::inputtags::slot_name);
1.512.2.9 raeburn 1441: } elsif ($type eq 'problem') {
1442: undef($Apache::lonhomework::rawrndseed);
1.498 raeburn 1443: }
1.208 albertel 1444: #don't undef this, lonhomework.pm takes care of this, we use this to
1445: #detect if we try to do 2 problems in one file
1446: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1447: undef($Apache::lonhomework::name);
1.358 albertel 1448: undef($Apache::lonhomework::default_type);
1449: undef($Apache::lonhomework::type);
1450: undef($Apache::lonhomework::scantronmode);
1.512.2.21! raeburn 1451: undef($Apache::inputtags::randomizetrypart);
1.358 albertel 1452: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1453: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1454: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1455: }
1456:
1.241 albertel 1457: sub set_problem_state {
1.240 albertel 1458: my ($part)=@_;
1.284 albertel 1459: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1460: $Apache::lonhomework::history{"resource.$part.solved"}=
1461: 'correct_by_student';
1462: }
1463: }
1464:
1.241 albertel 1465: sub get_problem_status {
1466: my ($part)=@_;
1.267 albertel 1467: my $problem_status;
1.284 albertel 1468: if ($env{'request.state'} eq 'construct' &&
1469: defined($env{'form.problemstatus'})) {
1470: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1471: } else {
1472: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1473: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1474: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1475: }
1476: return $problem_status;
1477: }
1478:
1.9 albertel 1479: sub start_problem {
1.326 albertel 1480: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1481:
1.311 foxr 1482: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1483: if (!$Apache::lonxml::metamode) {
1484: &Apache::lonxml::startredirection();
1485: }
1.311 foxr 1486:
1.308 foxr 1487: # Problems don't nest and we don't allow more than one <problem> in
1488: # a .problem file.
1489: #
1.184 albertel 1490: if ( $Apache::inputtags::part ne '' ||
1491: $Apache::lonhomework::parsing_a_problem) {
1492: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1493: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1494: return '';
1495: }
1.184 albertel 1496:
1497: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1498: &init_problem_globals('problem');
1.166 albertel 1499:
1.284 albertel 1500: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1501: $Apache::lonhomework::scantronmode=1;
1502: }
1.161 albertel 1503:
1.159 albertel 1504: if ($target ne 'analyze') {
1.415 raeburn 1505: my $type = &Apache::lonnet::EXT('resource.0.type');
1506: $Apache::lonhomework::type=$type;
1.284 albertel 1507: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1508: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1509: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1510: }
1.332 albertel 1511: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1512: }
1.164 albertel 1513: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1514: my $uri=$env{'request.uri'};
1.159 albertel 1515: if ($uri=~/\.(\w+)$/) {
1516: $Apache::lonhomework::type=$1;
1517: &Apache::lonxml::debug("Using type of $1");
1518: } else {
1519: $Apache::lonhomework::type='problem';
1520: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1521: }
1.87 albertel 1522: }
1.301 albertel 1523: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1524:
1.363 albertel 1525: &initialize_storage();
1.389 albertel 1526: if ($target ne 'analyze'
1527: && $env{'request.state'} eq 'construct') {
1528: &set_problem_state('0');
1529: }
1530:
1.366 albertel 1531: if ($target eq 'web') {
1532: &Apache::lonxml::debug(" grading history ");
1533: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1534: }
1.363 albertel 1535:
1.159 albertel 1536: #added vars to the scripting enviroment
1.213 albertel 1537: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1538: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1539: &Apache::run::run($expression,$safeeval);
1.159 albertel 1540: my $status;
1541: my $accessmsg;
1.508 raeburn 1542: my $resource_due;
1.159 albertel 1543:
1.343 albertel 1544: my $name= &get_resource_name($parstack,$safeeval);
1.512.2.16 raeburn 1545: my ($result,$form_tag_start,$slot_name,$slot,$probpartlist,$firstaccres);
1.506 raeburn 1546:
1547: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1548: $target eq 'tex') {
1549: if ($env{'form.markaccess'}) {
1550: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1.512.2.16 raeburn 1551: my $is_set = &Apache::lonnet::set_first_access($interval[1],$interval[0]);
1552: unless (($is_set eq 'ok') || ($is_set eq 'already_set')) {
1553: $firstaccres = $is_set;
1554: }
1.506 raeburn 1555: }
1556:
1557: ($status,$accessmsg,$slot_name,$slot) =
1558: &Apache::lonhomework::check_slot_access('0','problem');
1559: push (@Apache::inputtags::status,$status);
1560: }
1561:
1.354 albertel 1562: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1563: || $target eq 'edit') {
1.512.2.9 raeburn 1564: ($result,$form_tag_start,$probpartlist) =
1.350 albertel 1565: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1566: $name);
1.512.2.9 raeburn 1567: } elsif (($target eq 'grade') && ($Apache::lonhomework::type eq 'randomizetry')) {
1568: my ($symb)= &Apache::lonnet::whichuser();
1569: my $navmap = Apache::lonnavmaps::navmap->new();
1570: if (ref($navmap)) {
1571: my $res = $navmap->getBySymb($symb);
1572: if (ref($res)) {
1573: $probpartlist = $res->parts();
1574: }
1575: }
1.350 albertel 1576: }
1577:
1.284 albertel 1578: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1579:
1.479 raeburn 1580: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1581: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1582: $target eq 'tex') {
1.479 raeburn 1583:
1.159 albertel 1584: #handle rand seed in construction space
1.512.2.9 raeburn 1585: my $rndseed=&setup_rndseed($safeeval,$target,$probpartlist);
1586: if (($target eq 'grade') && &Apache::response::submitted()) {
1587: if ($Apache::lonhomework::type eq 'randomizetry') {
1588: $Apache::lonhomework::results{'resource.0.rndseed'}=$rndseed;
1589: } else {
1590: my @parts;
1591: if (ref($probpartlist) eq 'ARRAY') {
1592: @parts = @{$probpartlist};
1593: }
1594: unless (@parts) {
1595: $Apache::lonhomework::results{'resource.0.rndseed'}=$Apache::lonhomework::rawrndseed;
1596: }
1597: }
1598: }
1.367 albertel 1599: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 1600:
1.333 albertel 1601: if ($env{'request.state'} ne "construct" &&
1602: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.512.2.20 raeburn 1603: my $rndseedval = $rndseed;
1604: if (($symb eq '') && ($Apache::lonhomework::type eq 'randomizetry')) {
1605: $rndseedval = $env{'form.rndseed'};
1606: }
1.162 albertel 1607: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.512.2.20 raeburn 1608: $rndseedval.'" />'.
1.462 raeburn 1609: '<input type="submit" name="resetdata"
1610: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1611: if (exists($env{'form.username'})) {
1612: $form_tag_start.=
1.164 albertel 1613: '<input type="hidden" name="username"
1.284 albertel 1614: value="'.$env{'form.username'}.'" />';
1.334 albertel 1615: }
1.462 raeburn 1616: if ($env{'request.role.adv'}) {
1617: $form_tag_start.= ' <label class="LC_nobreak">'
1618: .'<input type="checkbox" name="showallfoils"';
1619: if (defined($env{'form.showallfoils'})) {
1620: $form_tag_start.=' checked="checked"';
1621: }
1622: $form_tag_start.= ' /> '
1623: .&mt('Show All Foils')
1624: .'</label>';
1625: }
1.417 www 1626: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1627: $form_tag_start.=&practice_problem_header();
1.417 www 1628: }
1.462 raeburn 1629: $form_tag_start.='<hr />';
1.512.2.20 raeburn 1630: }
1631: if (($env{'request.state'} ne "construct") &&
1632: ($Apache::lonhomework::type eq 'randomizetry') &&
1633: ($status eq 'CAN_ANSWER')) {
1.512.2.21! raeburn 1634: my @parts;
! 1635: if (ref($probpartlist) eq 'ARRAY') {
! 1636: @parts = @{$probpartlist};
! 1637: }
! 1638: unless (@parts) {
! 1639: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
! 1640: my $problemstatus = &get_problem_status($Apache::inputtags::part);
! 1641: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries,$symb);
! 1642: }
1.479 raeburn 1643: }
1.324 albertel 1644:
1.159 albertel 1645: my $expression='$external::datestatus="'.$status.'";';
1646: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1647: &Apache::run::run($expression,$safeeval);
1648: &Apache::lonxml::debug("Got $status");
1.324 albertel 1649:
1.159 albertel 1650: if (( $status eq 'CLOSED' ) ||
1651: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1652: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1653: ( $status eq 'BANNED') ||
1.216 albertel 1654: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1655: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1656: ( $status eq 'NOTRESERVABLE') ||
1657: ( $status eq 'RESERVABLE') ||
1658: ( $status eq 'RESERVABLE_LATER') ||
1.216 albertel 1659: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1660: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1661: $style);
1.159 albertel 1662: if ( $target eq "web" ) {
1.343 albertel 1663: my $msg;
1.159 albertel 1664: if ($status eq 'UNAVAILABLE') {
1.504 golterma 1665: $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1.441 raeburn 1666: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.504 golterma 1667: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1.499 raeburn 1668: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1669: ($status eq 'NOTRESERVABLE')) {
1.504 golterma 1670: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1.253 albertel 1671: } elsif ($status ne 'NOT_YET_VIEWED') {
1.504 golterma 1672: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1.499 raeburn 1673: }
1.216 albertel 1674: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1675: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1676: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1677: $msg.=&checkout_msg();
1.252 albertel 1678: } elsif ($status eq 'NOT_YET_VIEWED') {
1.512.2.16 raeburn 1679: if ($firstaccres) {
1680: $msg .= '<p class="LC_error">'.
1681: &mt('A problem occurred when trying to start the timer.').'</p>';
1682: }
1.253 albertel 1683: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1684: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1685: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.499 raeburn 1686: } elsif ($status eq 'RESERVABLE') {
1687: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1688: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1689: '<br />'.
1690: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1691: } elsif ($status eq 'RESERVABLE_LATER') {
1692: $msg.=&mt('Window to make a reservation will open [_1].',
1693: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1694: } elsif ($status eq 'NOTRESERVABLE') {
1695: $msg.=&mt('Not available to make a reservation.');
1.159 albertel 1696: }
1697: $result.=$msg.'<br />';
1698: } elsif ($target eq 'tex') {
1.332 albertel 1699: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1700: : '\begin{minipage}{\textwidth}';
1.443 foxr 1701: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1702: $startminipage.'\vskip 0 mm';
1.159 albertel 1703: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1704: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1705: } else {
1.211 albertel 1706: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1707: }
1708: }
1.324 albertel 1709: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1710: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1711: $style);
1.324 albertel 1712: if ($target eq 'web') {
1.375 albertel 1713: $result .=
1714: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1715: } elsif ($target eq 'grade') {
1716: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1717: 'problem');
1718: }
1.159 albertel 1719: } elsif ($target eq 'web') {
1.508 raeburn 1720: if ($status eq 'CAN_ANSWER') {
1721: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1722: if ($slot_name ne '') {
1723: my $checked_in =
1724: $Apache::lonhomework::history{'resource.0.checkedin'};
1725: if ($checked_in eq '') {
1726: # unproctored slot access, self checkin
1727: &Apache::bridgetask::check_in('problem',undef,undef,
1728: $slot_name);
1729: $checked_in =
1730: $Apache::lonhomework::results{"resource.0.checkedin"};
1731: }
1732: if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1733: if ($slot->{'starttime'} < time()) {
1734: if (!$resource_due) {
1735: $resource_due = $slot->{'endtime'};
1736: } elsif ($slot->{'endtime'} < $resource_due) {
1737: $resource_due = $slot->{'endtime'};
1738: }
1739: }
1740: }
1741: }
1742: if ($resource_due) {
1743: my $time_left = $resource_due - time();
1744: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1745: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1746: }
1747: }
1748: }
1.368 albertel 1749: $result.="\n $form_tag_start \t".
1.227 albertel 1750: '<input type="hidden" name="submitted" value="yes" />';
1751: # create a page header and exit
1.284 albertel 1752: if ($env{'request.state'} eq "construct") {
1753: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1754: if ($Apache::lonhomework::type eq 'practice') {
1755: $result.= '<input type="submit" name="resetdata" '.
1756: 'value="'.&mt('New Problem Variation').'" />'.
1757: &practice_problem_header().'<hr />';
1.512.2.19 raeburn 1758: } elsif ($Apache::lonhomework::type eq 'randomizetry') {
1759: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1760: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1761: $result.=&randomizetry_problem_header($problemstatus,$reqtries);
1.428 raeburn 1762: }
1.227 albertel 1763: }
1764: # if we are viewing someone else preserve that info
1.284 albertel 1765: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1766: foreach my $field ('symb','courseid','domain','username') {
1767: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1768: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1769: }
1.479 raeburn 1770: foreach my $field ('trial','questiontype') {
1771: if ($env{"form.grade_$field"} ne '') {
1772: $result .= '<input type="hidden" name="grade_'.$field.
1773: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1774: }
1775: }
1.159 albertel 1776: }
1.490 raeburn 1777: if ($env{'form.grade_imsexport'}) {
1778: $result = '';
1779: }
1.159 albertel 1780: } elsif ($target eq 'tex') {
1.319 foxr 1781: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 1782: $result .= &select_metadata_hyphenation();
1783:
1.319 foxr 1784:
1.99 sakharuk 1785: }
1.159 albertel 1786: } elsif ($target eq 'edit') {
1.343 albertel 1787: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1788: $Apache::lonxml::warnings_error_header=
1789: &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 1790: my $temp=&Apache::edit::insertlist($target,$token);
1791: $result.=$temp;
1792: } elsif ($target eq 'modified') {
1793: $result=$token->[4];
1794: } else {
1795: # page_start returned a starting result, delete it if we don't need it
1796: $result = '';
1.99 sakharuk 1797: }
1.159 albertel 1798: return $result;
1.9 albertel 1799: }
1800:
1801: sub end_problem {
1.159 albertel 1802: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1803: my $result;
1.310 foxr 1804:
1.321 albertel 1805: if (!$Apache::lonxml::metamode) {
1806: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1807: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1808: }
1.319 foxr 1809:
1810: if ($target eq 'tex') {
1.321 albertel 1811: # Figure out the front matter and replace the
1812: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1813: # this in end_problem because whether or not we display due
1814: # dates depends on whether due dates have already been
1815: # displayed in the problem parts.
1816:
1.319 foxr 1817: my $frontmatter = '';
1818: my $startminipage = '';
1819: if (not $env{'form.problem_split'}=~/yes/) {
1820: $startminipage = '\begin{minipage}{\textwidth}';
1821: }
1822: my $id = $Apache::inputtags::part;
1823: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1824: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.512.2.9 raeburn 1825: my @packages = split(/,/,$packages);
1.319 foxr 1826: my $allow_print_points = 0;
1827: foreach my $partial_key (@packages) {
1828: if ($partial_key=~m/^part_0$/) {
1829: $allow_print_points=1;
1830: }
1831: }
1832: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1833: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1834: if (lc($env{'course.'.$env{'request.course.id'}.
1835: '.disableexampointprint'}) eq 'yes') {
1836: $allow_print_points=0;
1837: }
1838: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1839: 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 1840: &clear_required_languages();
1.319 foxr 1841: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1842: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1843:
1844: # Figure out what the due date is and if we need to print
1845: # it in the problem header. We have been logging the
1846: # last due date written to file.
1847:
1848: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1849: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1850: my $duedate_text = &mt('Due date: [_1]'
1851: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1852: my $temp_file;
1853: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1854:
1855: # Figure out what the last printed due date is or set it
1856: # to the epoch if no duedates have been printed.
1857:
1858: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1859: if (-e $filename) {
1860: $temp_file = Apache::File->new($filename);
1861: my @due_file = <$temp_file>;
1862: $due_file_content = $due_file[$#due_file];
1863: chomp $due_file_content;
1864: }
1865:
1866: # We display the due date iff it is not the same as the last
1867: # duedate in problem header ($due_file_content), and
1868: # none of our parts displayed a duedate.
1869: #
1870: my $parts_with_displayduedate;
1871: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1872: $parts_with_displayduedate =
1873: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1874: } else {
1875: $parts_with_displayduedate = 0;
1876: }
1877: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1878: $temp_file = Apache::File->new('>'.$filename);
1879: print $temp_file "$duetime\n";
1880: if (not $env{'request.symb'} =~ m/\.page_/) {
1881: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1882: $frontmatter .= $begin_doc.
1.448 bisitz 1883: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1884: } else {
1885: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1886: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1887: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1888: }
1.319 foxr 1889: }
1890: } else {
1.448 bisitz 1891: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1892: }
1893: } else {
1894: if (not $env{'request.symb'} =~ m/\.page_/) {
1895: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1896: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1897: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1898: }
1.319 foxr 1899: } else {
1.381 albertel 1900: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1901: }
1902: }
1903: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1904: }
1905:
1.159 albertel 1906: my $status=$Apache::inputtags::status['-1'];
1907: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1908: $target eq 'tex') {
1.249 albertel 1909: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1910: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1911: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1912: &Apache::inputtags::grade;
1.324 albertel 1913: } elsif ($status eq 'NEEDS_CHECKIN') {
1914: # no need to grade, and don't want to hide data
1.249 albertel 1915: } else {
1916: # move any submission data to .hidden
1917: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1918: }
1.159 albertel 1919: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1920: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1921: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1922: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1923: # if part is zero, no <part>s existed, so we need show the current
1924: # grading status
1925: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1926: $result.= $gradestatus;
1927: }
1928: if (
1.284 albertel 1929: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1930: ($target eq 'answer') || ($target eq 'tex')
1931: ) {
1.490 raeburn 1932: if (($target ne 'tex') &&
1933: ($env{'form.answer_output_mode'} ne 'tex') &&
1934: (!$env{'form.grade_imsexport'})) {
1.254 www 1935: $result.="</form>";
1.159 albertel 1936: }
1937: if ($target eq 'web') {
1.507 raeburn 1938: #
1939: # Closing </body></html> not added by end_page().
1940: # Added separately at end of this routine, after added
1941: # <script></script> so document will be valid xhtml.
1942: #
1943: $result.= &Apache::loncommon::end_page({'discussion' => 1,
1944: 'notbody' => 1});
1.159 albertel 1945: } elsif ($target eq 'tex') {
1.178 sakharuk 1946: my $endminipage = '';
1.284 albertel 1947: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1948: $endminipage = '\end{minipage}';
1949: }
1.284 albertel 1950: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1951: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1952: } else {
1.262 sakharuk 1953: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1954: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1955: $result .= $endminipage.'\end{document} ';
1956: } else {
1.382 albertel 1957: $result .= $endminipage;
1.262 sakharuk 1958: }
1.159 albertel 1959: }
1960: }
1961: }
1.476 www 1962: if ($target eq 'web') {
1.512.2.21! raeburn 1963: $result.=&Apache::functionplotresponse::init_script();
! 1964: if ($Apache::lonhomework::default_type eq 'randomizetry') {
! 1965: my ($symb) = &Apache::lonnet::whichuser();
! 1966: if ((($env{'request.state'} eq 'construct') || ($symb eq '')) &&
! 1967: ($status eq 'CAN_ANSWER')) {
! 1968: unless (@Apache::inputtags::partlist > 1) {
! 1969: $result.= <<"ENDJS";
! 1970: <script type="text/javascript">
! 1971: // <![CDATA[
! 1972: \$(document).ready(function() {
! 1973: \$('#LC_randomizetry_header').css('display','block');
! 1974: });
! 1975: // ]]>
! 1976: </script>
! 1977: ENDJS
! 1978: }
! 1979: }
! 1980: }
1.476 www 1981: }
1.159 albertel 1982: if ($target eq 'grade') {
1983: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1984: &finalize_storage();
1985: }
1.284 albertel 1986: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1987: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1988: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1989: # normally we get it from above, but in CSTR
1.172 albertel 1990: # we always show answer mode too.
1.159 albertel 1991: }
1992: } elsif ($target eq 'meta') {
1993: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1994: @Apache::inputtags::response=();
1.159 albertel 1995: $result=&Apache::response::mandatory_part_meta;
1996: }
1.215 albertel 1997: $result.=&Apache::response::meta_part_order();
1.258 albertel 1998: $result.=&Apache::response::meta_response_order();
1.159 albertel 1999: } elsif ($target eq 'edit') {
2000: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 2001: $result .= &problem_edit_footer();
1.320 albertel 2002: } elsif ($target eq 'modified') {
2003: $result .= $token->[2];
1.159 albertel 2004: }
1.155 albertel 2005:
1.284 albertel 2006: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 2007: &Apache::inputtags::check_for_duplicate_ids();
2008: }
1.204 albertel 2009:
2010: &reset_problem_globals('problem');
1.159 albertel 2011:
1.502 foxr 2012: #
2013: # This shouild be just above the return so that the
2014: # time put in the javascript is as late as possible in the
2015: # computation:
2016: #
2017: if ($target eq 'web') {
2018: $result .= &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 2019: #
2020: # Closing tags delayed so any <script></script> tags
2021: # not in head can appear inside body, for valid xhtml.
2022: #
2023: $result .= "</body>\n</html>";
1.502 foxr 2024: }
1.159 albertel 2025: return $result;
1.48 albertel 2026: }
2027:
1.108 albertel 2028:
1.48 albertel 2029: sub start_library {
1.159 albertel 2030: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 2031: my ($result,$form_tag_start);
1.371 albertel 2032: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 2033: &init_problem_globals('library');
2034: $Apache::lonhomework::type='problem';
2035: }
1.159 albertel 2036: if ($target eq 'edit') {
1.343 albertel 2037: ($result,$form_tag_start)=
2038: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2039: 'Edit');
2040: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 2041: my $temp=&Apache::edit::insertlist($target,$token);
2042: $result.=$temp;
2043: } elsif ($target eq 'modified') {
2044: $result=$token->[4];
1.340 albertel 2045: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 2046: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 2047: && $env{'request.state'} eq "construct" ) {
1.159 albertel 2048: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 2049: ($result,$form_tag_start)=
2050: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2051: $name);
1.479 raeburn 2052: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 2053: $result.=" \n $form_tag_start".
1.159 albertel 2054: '<input type="hidden" name="submitted" value="yes" />';
2055: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 2056: if ($Apache::lonhomework::type eq 'practice') {
2057: $result.= '<input type="submit" name="resetdata" '.
2058: 'value="'.&mt('New Problem Variation').'" />'.
2059: &practice_problem_header().'<hr />';
2060: }
1.159 albertel 2061: }
2062: return $result;
1.48 albertel 2063: }
2064:
2065: sub end_library {
1.159 albertel 2066: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2067: my $result='';
2068: if ($target eq 'edit') {
2069: $result=&problem_edit_footer();
1.371 albertel 2070: } elsif ($target eq 'web'
2071: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
2072: && $env{'request.state'} eq "construct") {
1.349 albertel 2073: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.512.2.15 raeburn 2074: } elsif ($target eq 'meta') {
2075: $result.=&Apache::response::meta_response_order();
1.159 albertel 2076: }
1.371 albertel 2077: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
2078: &reset_problem_globals('library');
2079: }
1.159 albertel 2080: return $result;
1.197 www 2081: }
2082:
2083: sub start_definetag {
1.326 albertel 2084: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 2085:
2086: my $result;
2087:
2088: my $name = $token->[2]->{'name'};
1.326 albertel 2089: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 2090: if ($target eq 'web') {
2091: if ($name=~/^\//) {
2092: $result=
2093: '<br /><table class="LC_sty_end"><tr><th>'.
2094: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2095: } else {
2096: $result=
2097: '<br /><table class="LC_sty_begin"><tr><th>'.
2098: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2099: }
2100: $skip = &HTML::Entities::encode($skip, '<>&"');
2101: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 2102: }
2103: return $result;
2104: }
2105:
2106: sub end_definetag {
2107: return '';
1.1 albertel 2108: }
2109:
2110: sub start_block {
1.201 albertel 2111: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 2112:
2113: my $result;
1.1 albertel 2114:
1.339 albertel 2115: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2116: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 2117: my $code = $token->[2]->{'condition'};
1.385 albertel 2118: if (defined($code) && $code ne '') {
1.137 albertel 2119: if (!$Apache::lonxml::default_homework_loaded) {
2120: &Apache::lonxml::default_homework_load($safeeval);
2121: }
1.131 albertel 2122: $result = &Apache::run::run($code,$safeeval);
2123: &Apache::lonxml::debug("block :$code: returned :$result:");
2124: } else {
2125: $result='1';
2126: }
2127: if ( ! $result ) {
1.201 albertel 2128: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 2129: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2130: }
2131: $result='';
2132: } elsif ($target eq 'edit') {
2133: $result .=&Apache::edit::tag_start($target,$token);
2134: $result .=&Apache::edit::text_arg('Test Condition:','condition',
2135: $token,40);
2136: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2137: } elsif ($target eq 'modified') {
2138: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2139: $safeeval,'condition');
2140: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 2141: }
1.131 albertel 2142: return $result;
1.1 albertel 2143: }
2144:
2145: sub end_block {
1.167 www 2146: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2147: my $result;
2148: if ($target eq "edit") {
2149: $result.= &Apache::edit::tag_end($target,$token,'');
2150: }
2151: return $result;
2152: }
1.500 foxr 2153: #
2154: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
2155: # ...
2156: # </languageblock>
2157: #
2158: # This declares the intent to provide content that can be rendered in the
2159: # set of languages in the include specificatino but not in the exclude
2160: # specification. If a currently preferred language is in the include list
2161: # the content in the <languageblock>...</languageblock> is rendered
2162: # If the currently preferred language is in the exclude list,
2163: # the content in the <languageblock>..></languageblock is not rendered.
2164: #
2165: # Pathalogical case handling:
2166: # - Include specified, without the preferred language but exclude specified
2167: # also without the preferred langauge results in rendering the block.
2168: # - Exclude specified without include and excluden not containing a
2169: # preferred language renders the block.
2170: # - Include and exclude both specifying the preferred language does not
2171: # render the block.
2172: # - If neither include/exclude is specified, the block gets rendered.
2173: #
2174: # This tag has no effect when target is in {edit, modified}
2175: #
1.167 www 2176: sub start_languageblock {
1.201 albertel 2177: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 2178:
1.500 foxr 2179: my $result = '';
1.167 www 2180:
1.339 albertel 2181: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2182: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 2183: my $include = $token->[2]->{'include'};
2184: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 2185: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 2186:
2187: # This should not even happen, since we should at least have the server language
2188:
2189: if (!$preferred_languages[0]) {
2190: $preferred_languages[0]='en';
2191: }
2192:
2193: # Now loop over all languages in order of preference
2194:
2195: my $render;
1.398 www 2196: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 2197:
2198: # If neither include/nor exlude is present the block is going
2199: # to get rendered.
2200:
1.399 www 2201: my $found=0;
1.500 foxr 2202: $render=1;
2203:
2204: # If include is specified, don't render the block
2205: # unless the preferred language is included in the set.
2206:
1.398 www 2207: if ($include) {
1.500 foxr 2208: $render=0;
1.398 www 2209: foreach my $included_language (split(/\,/,$include)) {
2210: if ($included_language eq $preferred_language) {
1.500 foxr 2211: $render=1;
1.399 www 2212: $found=1;
1.500 foxr 2213: last; # Only need to find the first.
1.398 www 2214: }
2215: }
2216: }
1.500 foxr 2217: # Do we have an exclude argument?
2218: # If so, and one of the languages matches a preferred language
2219: # inhibit rendering the block. Note that in the pathalogical case the
2220: # author has specified a preferred language in both the include and exclude
2221: # attribte exclude is preferred.
2222:
1.398 www 2223: if ($exclude) {
1.500 foxr 2224: $render=1;
1.398 www 2225: foreach my $excluded_language (split(/\,/,$exclude)) {
2226: if ($excluded_language eq $preferred_language) {
1.500 foxr 2227: $render=0;
1.399 www 2228: $found=1;
1.500 foxr 2229: last; # Only need to find the first.
1.398 www 2230: }
2231: }
2232: }
1.500 foxr 2233: if ($found) {
2234: last; # Done on any match of include or exclude.
2235: }
1.398 www 2236: }
1.500 foxr 2237: # If $render not true skip the entire block until </languageblock>
2238: #
2239:
2240: if ( ! $render ) {
1.201 albertel 2241: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
2242: $style);
2243: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2244: }
1.500 foxr 2245: # If $render is true, we've not skipped the contents of the <languageglock>
2246: # and the normal loncapa processing flow will render it as a matter of course.
2247:
1.167 www 2248: } elsif ($target eq 'edit') {
2249: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2250: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 2251: $token,40);
1.211 albertel 2252: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 2253: $token,40);
2254: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2255: } elsif ($target eq 'modified') {
2256: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 2257: $safeeval,'include',
2258: 'exclude');
1.167 www 2259: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2260: }
2261: return $result;
2262: }
2263:
2264: sub end_languageblock {
1.170 www 2265: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2266: my $result;
1.201 albertel 2267: if ($target eq "edit") {
1.170 www 2268: $result.= &Apache::edit::tag_end($target,$token,'');
2269: }
2270: return $result;
2271: }
1.500 foxr 2272: # languagblock specific tags:
2273: {
2274: # For chunks of a resource that has translations, this hash contains
2275: # the translations available indexed by language name.
2276: #
2277:
2278: my %available_texts;
1.170 www 2279:
1.500 foxr 2280: # <translated> starts a block of a resource that has multiple translations.
2281: # See the <lang> tag as well.
2282: # When </translated> is encountered if there is a translation for the
2283: # currently preferred language, that is rendered inthe web/tex/webgrade
2284: # targets. Otherwise, the default text is rendered.
2285: #
2286: # Note that <lang> is only registered for the duration of the
2287: # <translated>...</translated> block
2288: #
2289: # Pathalogical case handling:
2290: # - If there is no <lang> that specifies a 'default' and there is no
2291: # translation that matches a preferred language, nothing is rendered.
2292: # - Nested <translated>...</translated> might be linguistically supported by
2293: # XML due to the stack nature of tag registration(?) however the rendered
2294: # output will be incorrect because there is only one %available_texts
2295: # has and end_translated clears it.
2296: # - Material outside of a <lang>...</lang> block within the
2297: # <translated>...<translated> block won't render either e.g.:
2298: # <translated>
2299: # The following will be in your preferred langauge:
2300: # <lang which='en'>
2301: # This section in english
2302: # </lang>
2303: # <lang which='sgeiso'>
2304: # Hier es ist auf Deutsch.
2305: # </lang>
2306: # <lang which='sfriso'>
2307: # En Francais
2308: # </lang>
2309: # </translated>
2310: #
2311: # The introductory text prior to the first <lang> tag is not rendered.
2312: #
1.397 albertel 2313: sub start_translated {
2314: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2315: &Apache::lonxml::register('Apache::structuretags',('lang'));
2316: undef(%available_texts);
2317: }
2318:
2319: sub end_translated {
2320: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2321: my $result;
2322: #show the translation on viewable targets
2323: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
2324: # or non-viewable targets, if it's embedded in something that
2325: # wants the output
2326: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
2327: && &Apache::lonxml::in_redirection() ) ) {
2328: my @possibilities = keys(%available_texts);
2329: my $which =
2330: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 2331: if ($target eq 'tex') {
2332: $result = &select_hyphenation($which);
2333: }
2334: $result .= $available_texts{$which};
2335: if ($target eq 'tex') {
2336: $result .= &select_metadata_hyphenation(); # Restore original language.
2337: }
1.397 albertel 2338: }
2339: undef(%available_texts);
2340: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
2341: return $result;
2342: }
2343:
1.500 foxr 2344: # <lang [which='language-name'] [other='lang1,lang2...']>
2345: # Specifies that the block contained within it is a translation
2346: # for a specific language specified by the 'which' attribute. The
2347: # 'other' attribute can be used by itself or in conjunction with
2348: # which to specify this tag _may_ be used as a translation for some
2349: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
2350: # specifying that the block provides a translation for US (primary)
2351: # Canadian, Australian and UK Englush.
2352: #
2353: # Comment: this seems a bit silly why not just support a list of languages
2354: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
2355: #
2356: # Effect:
2357: # The material within the <lang>..</lang> block is stored in the
2358: # specified set of $available_texts hash entries, the appropriate one
2359: # is selected at </translated> time.
2360: #
2361: # Pathalogical case handling:
2362: # If a language occurs multiple times within a <translated> block,
2363: # only the last one is rendered e.g.:
2364: #
2365: # <translated>
2366: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
2367: # Red green color blindness is quite common affecting about 7.8% of
2368: # the male population, but onloy about .65% of the female population.
2369: # </lang>
2370: # Red green colour blindness is quite common affecting about 7.8% of
2371: # the male population, but onloy about .65% of the female population.
2372: # <lang which='seniso', other='senisoCA,senisoAU'>
2373: # </translated>
2374: #
2375: # renders the correct spelling of color (colour) for people who have specified
2376: # a preferred language that is one of the British Commonwealth languages
2377: # even though those are also listed as valid selections for the US english
2378: # <lang> block.
2379: #
1.397 albertel 2380: sub start_lang {
2381: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2382: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2383: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2384: &Apache::lonxml::startredirection();
2385: }
2386: return '';
2387: }
2388:
2389: sub end_lang {
2390: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2391: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2392: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2393: my $result = &Apache::lonxml::endredirection();
2394: my $which = &Apache::lonxml::get_param('which',$parstack,
2395: $safeeval);
1.431 raeburn 2396: if ($which=~/\w/) {
2397: $available_texts{$which} = $result;
2398: }
2399: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
2400: $safeeval);
2401: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
2402: if ($language=~/\w/) {
2403: $available_texts{$language} = $result;
2404: }
1.427 bisitz 2405: }
2406:
1.397 albertel 2407: }
2408: return '';
2409: }
1.500 foxr 2410: } # end langauge block specific tags.
2411:
1.397 albertel 2412:
1.170 www 2413: sub start_instructorcomment {
1.201 albertel 2414: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 2415:
2416: my $result;
2417:
1.339 albertel 2418: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2419: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 2420: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 2421: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 2422: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
2423: $parser,$style);
1.170 www 2424: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2425: }
2426: $result='';
2427: } elsif ($target eq 'edit') {
2428: $result .=&Apache::edit::tag_start($target,$token);
2429: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2430: }
2431: return $result;
2432: }
2433:
2434: sub end_instructorcomment {
1.159 albertel 2435: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2436: my $result;
2437: if ($target eq "edit") {
2438: $result.= &Apache::edit::tag_end($target,$token,'');
2439: }
2440: return $result;
1.4 tsai 2441: }
2442:
2443: sub start_while {
1.326 albertel 2444: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2445:
1.160 albertel 2446: my $result;
1.339 albertel 2447: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2448: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2449: my $code = $token->[2]->{'condition'};
1.4 tsai 2450:
1.160 albertel 2451: push( @Apache::structuretags::whileconds, $code);
2452: if (!$Apache::lonxml::default_homework_loaded) {
2453: &Apache::lonxml::default_homework_load($safeeval);
2454: }
2455: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2456: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2457: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2458: push( @Apache::structuretags::whileline, $token->[5]);
2459: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2460: if ( $result ) {
2461: &Apache::lonxml::newparser($parser,\$bodytext);
2462: }
2463: } elsif ($target eq 'edit') {
2464: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2465: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2466: $token,40);
2467: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2468: } elsif ($target eq 'modified') {
2469: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2470: $safeeval,'condition');
2471: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2472: }
1.160 albertel 2473: return $result;
1.4 tsai 2474: }
2475:
2476: sub end_while {
1.159 albertel 2477: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2478: my $result;
2479:
1.339 albertel 2480: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2481: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2482: my $code = pop(@Apache::structuretags::whileconds);
2483: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2484: my $line = pop(@Apache::structuretags::whileline);
2485: my $return = &Apache::run::run($code,$safeeval);
2486: my $starttime=time;
2487: my $error=0;
2488: while ($return) {
2489: if (time-$starttime >
2490: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2491: $return = 0; $error=1; next;
1.161 albertel 2492: }
2493: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2494: if ($target eq 'grade' || $target eq 'answer' ||
2495: $target eq 'analyze') {
2496: # grade/answer/analyze should produce no output but if we
2497: # are redirecting, the redirecter should know what to do
2498: # with the output
2499: if (!$Apache::lonxml::redirection) { undef($result); }
2500: }
1.161 albertel 2501: $return = &Apache::run::run($code,$safeeval);
2502: }
1.512.2.5 raeburn 2503: if ($error) {
2504: &Apache::lonxml::error(
2505: '<pre>'
2506: .&mt('Code ran too long. It ran for more than [_1] seconds.',
2507: $Apache::lonnet::perlvar{'lonScriptTimeout'})
2508: .&mt('This occurred while running <while> on line [_1].',
2509: $line)
2510: .'</pre>');
2511: }
1.160 albertel 2512: } elsif ($target eq "edit") {
2513: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2514: }
1.160 albertel 2515: return $result;
1.1 albertel 2516: }
1.6 tsai 2517:
1.160 albertel 2518: # <randomlist show="1">
1.6 tsai 2519: # <tag1>..</tag1>
2520: # <tag2>..</tag2>
2521: # <tag3>..</tag3>
1.160 albertel 2522: # ...
1.6 tsai 2523: # </randomlist>
2524: sub start_randomlist {
1.326 albertel 2525: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2526: my $result;
1.339 albertel 2527: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2528: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2529: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2530: my $b_parser= HTML::LCParser->new(\$body);
2531: $b_parser->xml_mode(1);
2532: $b_parser->marked_sections(1);
1.159 albertel 2533: my $b_tok;
2534: my @randomlist;
2535: my $list_item;
2536: while($b_tok = $b_parser->get_token() ) {
2537: if($b_tok->[0] eq 'S') { # start tag
2538: # get content of the tag until matching end tag
2539: # get all text upto the matching tag
2540: # and push the content into @randomlist
2541: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2542: $b_parser);
2543: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2544: push(@randomlist,$list_item);
2545: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2546: # $list_item</b>";
2547: }
2548: if($b_tok->[0] eq 'T') { # text
2549: # what to do with text in between tags?
2550: # print "<b>TEXT $b_tok->[1]</b><br />";
2551: }
2552: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2553: # print "<b>END-TAG $b_tok->[1]</b><br />";
2554: # }
2555: }
1.303 albertel 2556: if (@randomlist) {
2557: my @idx_arr = (0 .. $#randomlist);
1.512.2.14 raeburn 2558: if ($env{'form.code_for_randomlist'}) {
2559: &Apache::structuretags::shuffle(\@idx_arr,$target);
2560: undef($env{'form.code_for_randomlist'});
2561: } else {
2562: &Apache::structuretags::shuffle(\@idx_arr);
2563: }
1.303 albertel 2564: my $bodytext = '';
2565: my $show=$#randomlist;
2566: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2567: $showarg--;
2568: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2569: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2570: my @currlist;
2571: my $part = $Apache::inputtags::part;
2572: if ($part ne '') {
2573: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2574: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2575: if (!(grep(/^\Q$part\E$/,@currlist))) {
2576: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2577: }
2578: } else {
2579: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2580: }
2581: }
2582: }
1.512.2.9 raeburn 2583: for my $i (0 .. $show) {
2584: $bodytext .= "$randomlist[ $idx_arr[$i] ]";
1.303 albertel 2585: }
2586: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2587: }
2588: } elsif ($target eq 'edit' ) {
2589: $result .=&Apache::edit::tag_start($target,$token);
2590: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2591: $token,5);
2592: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2593: } elsif ($target eq 'modified' ) {
2594: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2595: $safeeval,'show');
2596: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2597: }
2598: return $result;
1.7 tsai 2599: }
2600:
2601: sub shuffle {
1.512.2.14 raeburn 2602: my ($a,$target) = @_;
1.7 tsai 2603: my $i;
1.303 albertel 2604: if (ref($a) eq 'ARRAY' && @$a) {
1.512.2.14 raeburn 2605: &Apache::response::pushrandomnumber(undef,$target);
1.159 albertel 2606: for($i=@$a;--$i;) {
2607: my $j=int(&Math::Random::random_uniform() * ($i+1));
2608: next if $i == $j;
2609: @$a[$i,$j] = @$a[$j,$i];
2610: }
1.251 albertel 2611: &Apache::response::poprandomnumber();
1.7 tsai 2612: }
1.6 tsai 2613: }
2614:
2615: sub end_randomlist {
1.159 albertel 2616: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2617: my $result;
2618: if ($target eq 'edit' ) {
2619: $result=&Apache::edit::tag_end($target,$token,
2620: 'End Randomly Parsed Block');
2621: }
2622: return $result;
1.6 tsai 2623: }
2624:
1.283 albertel 2625: sub ordered_show_check {
2626: my $last_part=$Apache::inputtags::partlist[-2];
2627: my $in_order=
2628: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2629: my $in_order_show=1;
2630: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2631: $in_order_show=&Apache::response::check_status($last_part);
2632: }
2633: return $in_order_show;
2634: }
2635:
1.469 www 2636:
2637: sub start_startpartmarker {
2638: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2639: my $result='';
2640: if ($target eq 'edit') {
2641: $result=&Apache::edit::tag_start($target,$token);
2642: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2643: $result.=&Apache::edit::end_table();
2644:
2645: }
2646: return $result;
2647: }
2648:
2649: sub end_startpartmarker {
2650: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2651: my @result;
2652: if ($target eq 'edit') { $result[1]='no'; }
2653: return @result;
2654: }
2655:
2656: sub start_endpartmarker {
2657: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2658: my $result='';
2659: if ($target eq 'edit') {
2660: $result=&Apache::edit::tag_start($target,$token);
2661: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2662: $result.=&Apache::edit::end_table();
2663:
2664: }
2665: return $result;
2666: }
2667:
2668: sub end_endpartmarker {
2669: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2670: my @result;
2671: if ($target eq 'edit') { $result[1]='no'; }
2672: return @result;
2673: }
2674:
2675:
2676:
2677:
2678:
1.11 albertel 2679: sub start_part {
1.326 albertel 2680: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2681: if (!$Apache::lonxml::metamode) {
2682: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2683: # duedates.
2684: }
1.159 albertel 2685: my $result='';
1.386 albertel 2686: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2687: $Apache::inputtags::part=$id;
1.177 albertel 2688: push(@Apache::inputtags::partlist,$id);
1.512.2.10 raeburn 2689: $Apache::inputtags::leniency='';
1.177 albertel 2690: @Apache::inputtags::response=();
1.159 albertel 2691: @Apache::inputtags::previous=();
2692: @Apache::inputtags::previous_version=();
1.405 albertel 2693: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2694: &Apache::response::reset_params();
2695:
1.159 albertel 2696: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2697: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2698: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.512.2.9 raeburn 2699: if ($Apache::lonhomework::type eq 'randomizetry') {
2700: my $rndseed=&setup_rndseed($safeeval,$target);
2701: if (($target eq 'grade') && &Apache::response::submitted()) {
2702: $Apache::lonhomework::results{"resource.$id.rndseed"}=$rndseed;
2703: }
2704: } elsif (($target eq 'grade') && &Apache::response::submitted()) {
2705: $Apache::lonhomework::results{"resource.$id.rndseed"}=$Apache::lonhomework::rawrndseed;
2706: }
1.283 albertel 2707: my $in_order_show=&ordered_show_check();
1.214 albertel 2708: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2709: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2710: &Apache::run::run($expression,$safeeval);
1.159 albertel 2711:
2712: if ($target eq 'meta') {
1.224 www 2713: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2714: return &Apache::response::mandatory_part_meta.
2715: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2716: } elsif ($target eq 'web' || $target eq 'grade' ||
2717: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2718: if ($hidden || !$in_order_show) {
1.326 albertel 2719: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2720: } else {
2721: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2722: push (@Apache::inputtags::status,$status);
2723: my $expression='$external::datestatus="'.$status.'";';
2724: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2725: &Apache::run::run($expression,$safeeval);
1.284 albertel 2726: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2727: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2728: }
1.216 albertel 2729: if (( $status eq 'CLOSED' ) ||
2730: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2731: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2732: ( $status eq 'BANNED') ||
2733: ( $status eq 'UNAVAILABLE') ||
2734: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2735: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2736: $style);
1.159 albertel 2737: if ( $target eq "web" ) {
1.211 albertel 2738: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2739: } elsif ( $target eq 'tex' ) {
1.284 albertel 2740: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2741: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2742: } else {
1.211 albertel 2743: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2744: }
1.159 albertel 2745: }
2746: } else {
2747: if ($target eq 'tex') {
1.284 albertel 2748: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2749: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2750: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2751: } else {
2752: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2753: }
1.195 sakharuk 2754: }
1.159 albertel 2755: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2756: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.512.2.9 raeburn 2757: my @allkeys = split(/,/,$allkeys);
1.222 sakharuk 2758: my $allow_print_points = 0;
2759: foreach my $partial_key (@allkeys) {
1.230 albertel 2760: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2761: if ($1 ne '0') {$allow_print_points=1;}
2762: }
2763: }
1.275 albertel 2764: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2765: if (defined($maxtries) && $maxtries < 0) {
2766: $allow_print_points=0;
2767: }
1.302 albertel 2768: if (lc($env{'course.'.$env{'request.course.id'}.
2769: '.disableexampointprint'}) eq 'yes') {
2770: $allow_print_points=0;
2771: }
1.463 foxr 2772: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2773: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2774:
2775: }
1.233 www 2776: } elsif ($target eq 'web') {
1.479 raeburn 2777: if ($status eq 'CAN_ANSWER') {
2778: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2779: my $num = scalar(@Apache::inputtags::partlist)-1;
1.512.2.21! raeburn 2780: if ((($Apache::lonhomework::default_type eq 'randomizetry') ||
! 2781: ($Apache::lonhomework::randomizetrypart)) &&
! 2782: ($Apache::lonhomework::type ne 'randomizetry')) {
! 2783: $result .= &randomizetry_part_header($problemstatus,'none',$num);
! 2784: } elsif ($Apache::lonhomework::type eq 'randomizetry') {
! 2785: $Apache::lonhomework::randomizetrypart = 1;
! 2786: my $reqtries = &Apache::lonnet::EXT("resource.$id.randomizeontries");
1.479 raeburn 2787: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2788: }
2789: }
1.475 raeburn 2790: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2791: }
2792: }
2793: }
2794: } elsif ($target eq 'edit') {
2795: $result.=&Apache::edit::tag_start($target,$token);
2796: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2797: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2798: ' '.
2799: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2800: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2801: } elsif ($target eq 'modified') {
2802: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2803: $safeeval,'id','display');
1.159 albertel 2804: if ($constructtag) {
1.225 albertel 2805: #limiting ids to only letters numbers, and space
1.224 www 2806: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2807: $result = &Apache::edit::rebuild_tag($token);
2808: }
2809: }
2810: return $result;
1.11 albertel 2811: }
2812:
2813: sub end_part {
1.159 albertel 2814: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2815: &Apache::lonxml::debug("in end_part $target ");
2816: my $status=$Apache::inputtags::status['-1'];
2817: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2818: my $in_order_show=&ordered_show_check();
1.321 albertel 2819: my $result;
2820: if (!$Apache::lonxml::metamode) {
2821: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2822: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2823: }
1.312 albertel 2824: if ($target eq 'grade') {
1.249 albertel 2825: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2826: !$hidden && $in_order_show) {
1.311 foxr 2827: $result.=&Apache::inputtags::grade;
1.249 albertel 2828: } else {
2829: # move any submission data to .hidden
2830: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2831: }
1.283 albertel 2832: } elsif (($target eq 'web' || $target eq 'tex') &&
2833: !$hidden && $in_order_show) {
1.159 albertel 2834: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2835: $target);
1.490 raeburn 2836: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2837: ($env{'form.grade_imsexport'})) {
1.212 albertel 2838: $gradestatus='';
2839: }
1.311 foxr 2840: $result.=$gradestatus;
1.265 sakharuk 2841: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2842: } elsif ($target eq 'edit') {
1.311 foxr 2843: $result.=&Apache::edit::end_table();
1.322 albertel 2844: } elsif ($target eq 'modified') {
2845: $result .= $token->[2];
1.159 albertel 2846: }
2847: pop @Apache::inputtags::status;
2848: $Apache::inputtags::part='';
1.512.2.10 raeburn 2849: $Apache::inputtags::leniency='';
1.295 albertel 2850: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2851: return $result;
1.11 albertel 2852: }
1.1 albertel 2853:
1.25 albertel 2854: sub start_preduedate {
1.326 albertel 2855: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2856: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2857: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2858: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2859: if (!$Apache::lonhomework::scantronmode &&
2860: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2861: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2862: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2863: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2864: }
1.24 albertel 2865: }
1.159 albertel 2866: return '';
1.24 albertel 2867: }
2868:
1.25 albertel 2869: sub end_preduedate {
1.159 albertel 2870: return '';
1.24 albertel 2871: }
2872:
1.369 foxr 2873: # In all the modes where <postanswerdate> text is
2874: # displayable, all we do is eat up the text between the start/stop
2875: # tags if the conditions are not right to display it.
1.25 albertel 2876: sub start_postanswerdate {
1.326 albertel 2877: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2878: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2879: &Apache::lonnet::allowed('pav',
2880: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2881: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2882: $target eq 'tex' ) {
1.300 albertel 2883: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2884: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2885: (($target eq 'tex') && !$pav)) {
1.326 albertel 2886: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2887: }
2888: }
2889: return '';
1.24 albertel 2890: }
2891:
1.25 albertel 2892: sub end_postanswerdate {
1.159 albertel 2893: return '';
1.24 albertel 2894: }
2895:
1.25 albertel 2896: sub start_notsolved {
1.326 albertel 2897: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2898: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2899: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2900: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2901: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2902: if ($gradestatus =~ /^correct/ &&
2903: &Apache::response::show_answer()) {
1.159 albertel 2904: &Apache::lonxml::debug("skipping");
1.326 albertel 2905: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2906: }
1.24 albertel 2907: }
1.159 albertel 2908: return '';
1.24 albertel 2909: }
2910:
1.25 albertel 2911: sub end_notsolved {
1.159 albertel 2912: return '';
1.24 albertel 2913: }
2914:
2915: sub start_solved {
1.326 albertel 2916: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2917: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2918: $target eq 'tex') {
2919: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2920: if ($gradestatus !~ /^correct/ ||
2921: !&Apache::response::show_answer()) {
1.326 albertel 2922: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2923: }
1.24 albertel 2924: }
1.159 albertel 2925: return '';
1.24 albertel 2926: }
2927:
2928: sub end_solved {
1.248 albertel 2929: return '';
2930: }
2931:
2932: sub start_problemtype {
1.326 albertel 2933: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2934: my $result;
1.339 albertel 2935: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2936: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2937: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2938: if (!defined($mode)) { $mode='show'; }
2939: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2940: my $found=0;
2941: foreach my $type (split(',',$for)) {
2942: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2943: }
2944: if ($mode eq 'show' && !$found) {
1.326 albertel 2945: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2946: }
2947: if ($mode eq 'hide' && $found) {
1.326 albertel 2948: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2949: }
2950: } elsif ($target eq 'edit') {
2951: $result .=&Apache::edit::tag_start($target,$token);
2952: $result.=&Apache::edit::select_arg('Mode:','mode',
2953: [['show','Show'],
2954: ['hide','Hide']]
2955: ,$token);
2956: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.512.2.2 raeburn 2957: [ ['exam','Exam/Quiz Problem'],
1.248 albertel 2958: ['survey','Survey'],
1.465 raeburn 2959: ['surveycred','Survey (with credit)'],
2960: ['anonsurvey','Anonymous Survey'],
2961: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2962: ['problem','Homework Problem'],
1.479 raeburn 2963: ['practice','Practice Problem'],
2964: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2965: ,$token);
2966: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2967: } elsif ($target eq 'modified') {
2968: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2969: $safeeval,'mode','for');
2970: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2971: }
2972: return $result;
2973: }
2974:
2975: sub end_problemtype {
1.159 albertel 2976: return '';
1.24 albertel 2977: }
1.34 albertel 2978:
2979: sub start_startouttext {
1.159 albertel 2980: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2981: my @result=(''.'');
2982: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2983:
2984: my $nesting =
2985: &Apache::lonxml::set_state('outtext',
2986: &Apache::lonxml::get_state('outtext')+1);
2987: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2988: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2989: }
1.159 albertel 2990: return (@result);
1.34 albertel 2991: }
1.159 albertel 2992:
1.34 albertel 2993: sub end_startouttext {
1.326 albertel 2994: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2995: my $result='';
2996: my $text='';
2997: if ($target eq 'edit') {
1.424 foxr 2998: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2999: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.512.2.11 raeburn 3000: $result.=&Apache::edit::start_table($token)."<tr><td>".&Apache::loncommon::insert_folding_button()
3001: ." ".&mt('Text Block')."</td>"
1.438 bisitz 3002: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 3003: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 3004: .'</span></td>'
1.512.2.12 raeburn 3005: .'<td><span id="math_'.$areaid.'">';
3006: if ($env{'environment.nocodemirror'}) {
3007: $result.=&Apache::lonhtmlcommon::dragmath_button($areaid,1);
3008: } else {
3009: $result.=' ';
3010: }
3011: $result.='</span></td>'
1.474 raeburn 3012: .'<td>'
3013: .&Apache::edit::insertlist($target,$token)
3014: .'</td>'
1.512.2.5 raeburn 3015: .'<td class="LC_edit_problem_latexhelper">' .
1.474 raeburn 3016: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 3017: &Apache::edit::end_row().
1.362 albertel 3018: &Apache::edit::start_spanning_row()."\n".
1.255 www 3019: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 3020: }
3021: if ($target eq 'modified') {
1.219 albertel 3022: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 3023: }
3024: if ($target eq 'tex') {
3025: $result .= '\noindent ';
3026: }
3027: return $result;
1.34 albertel 3028: }
1.159 albertel 3029:
1.34 albertel 3030: sub start_endouttext {
1.159 albertel 3031: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3032: my $result='';
3033: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
3034: if ($target eq "modified") {
3035: $result='<endouttext />'.
1.377 albertel 3036: &Apache::edit::handle_insertafter('startouttext');
3037: }
1.404 albertel 3038:
3039: my $nesting =
3040: &Apache::lonxml::set_state('outtext',
3041: &Apache::lonxml::get_state('outtext')-1);
3042: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
3043: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
3044: &Apache::lonxml::set_state('outtext', 0);
3045: }
1.159 albertel 3046: return $result;
1.34 albertel 3047: }
1.159 albertel 3048:
1.34 albertel 3049: sub end_endouttext {
1.159 albertel 3050: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3051: my @result=('','');
3052: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
3053: return (@result);
1.34 albertel 3054: }
1.159 albertel 3055:
1.45 albertel 3056: sub delete_startouttext {
1.326 albertel 3057: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
3058: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 3059: my $text=$$parser['-1']->get_text("/endouttext");
3060: my $ntoken=$$parser['-1']->get_token();
3061: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
3062: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
3063: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
3064: # they did the last time round
3065: &Apache::lonxml::increasedepth($ntoken);
3066: &Apache::lonxml::decreasedepth($ntoken);
3067: return 1;
1.193 www 3068: }
3069:
3070: sub start_simpleeditbutton {
3071: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3072: my $result='';
1.284 albertel 3073: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 3074: ($target eq 'web') &&
1.330 albertel 3075: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 3076: my $url=$env{'request.noversionuri'};
1.193 www 3077: $url=~s/\?.*$//;
1.367 albertel 3078: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 3079: # Warning makes more sense and is more important on edit screen
1.442 bisitz 3080: # $result='<p class="LC_warning">'
3081: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
3082: # .&Apache::loncommon::help_open_topic('Caching')
3083: # .'</p>';
1.486 www 3084: $result.=&Apache::loncommon::head_subbox(
3085: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 3086: .&Apache::lonhtmlcommon::add_item_funclist(
3087: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
3088: .&mt('Edit').'</a>')
1.486 www 3089: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 3090:
1.193 www 3091: }
3092: return $result;
3093: }
3094:
3095: sub end_simpleeditbutton {
3096: return '';
1.45 albertel 3097: }
1.34 albertel 3098:
1.428 raeburn 3099: sub practice_problem_header {
3100: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
3101: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
3102: '</span>';
3103: }
3104:
1.479 raeburn 3105: sub randomizetry_problem_header {
1.512.2.21! raeburn 3106: my ($problemstatus,$reqtries,$symb) = @_;
1.479 raeburn 3107: my ($header,$text);
3108: if ($reqtries > 1) {
3109: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
3110: if (($problemstatus eq 'no') ||
3111: ($problemstatus eq 'no_feedback_ever')) {
3112: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3113: } else {
3114: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3115: }
3116: } else {
3117: $header = &mt('New Problem Variation Each Try');
3118: if (($problemstatus eq 'no') ||
3119: ($problemstatus eq 'no_feedback_ever')) {
3120: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
3121:
3122: } else {
3123: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
3124: }
3125: }
1.512.2.21! raeburn 3126: if (($env{'request.state'} eq "construct") || ($symb eq '')) {
! 3127: return '<div class="LC_info" id="LC_randomizetry_header" style="display:none">'.
! 3128: '<h3>'.$header.'</h3><span class="LC_info">'.$text.'</span><hr /></div>';
! 3129: } else {
! 3130: return '<h3 class="LC_info">'.$header.'</h3>'.
! 3131: '<span class="LC_info">'.$text.'</span><hr />';
! 3132: }
1.479 raeburn 3133: }
3134:
3135: sub randomizetry_part_header {
3136: my ($problemstatus,$reqtries,$num) = @_;
3137: my ($header,$text);
3138: if ($reqtries eq 'none') {
3139: $header = &mt('No Question Variation');
3140: $text = &mt('For this question there will no new variation after a try.');
3141: } elsif ($reqtries > 1) {
3142: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
3143: if (($problemstatus eq 'no') ||
3144: ($problemstatus eq 'no_feedback_ever')) {
3145: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3146: } else {
3147: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3148: }
3149: } else {
3150: $header = &mt('New Question Variation For Each Try');
3151: if (($problemstatus eq 'no') ||
3152: ($problemstatus eq 'no_feedback_ever')) {
3153: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
3154: } else {
3155: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
3156: }
3157: }
3158: my $output;
3159: if ($num > 1) {
3160: $output .= '<hr />';
3161: }
3162: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
3163: '<span class="LC_info">'.$text.'</span><br /><br />';
3164: return $output;
3165: }
3166:
1.1 albertel 3167: 1;
3168: __END__
1.435 jms 3169:
3170: =pod
3171:
3172: =back
3173:
3174: =cut
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