Annotation of loncom/homework/structuretags.pm, revision 1.512.2.24
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.512.2.24! raeburn 4: # $Id: structuretags.pm,v 1.512.2.23 2019/11/07 13:59:19 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 );
1.512.2.24! raeburn 66: use HTML::Entities();
1.356 www 67: use lib '/home/httpd/lib/perl/';
68: use LONCAPA;
69:
1.78 harris41 70: BEGIN {
1.469 www 71: &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 72: }
73:
1.500 foxr 74:
75: #---------------------------------------------------------------------------------
76: #
77: # This section of code deals with hyphenation management.
78: # We must do three things:
79: # - keep track fo the desired languages to alter the header.
80: # - provide hyphenation selection as needed by each language that appears in the
81: # text.
82: # - Provide the header text needed to make available the desired hyphenations.
83: #
84: #
85:
86: # Hash whose keys are the languages encountered in the document/resource.
87: #
88:
89: my %languages_required;
90: ##
91: # Given a language selection as input returns a chunk of LaTeX that
92: # selects the required hyphenator.
93: #
94: # @param language - the language being selected.
95: # @return string
96: # @retval The LaTeX needed to select the hyphenation appropriate to the language.
97: #
98: sub select_hyphenation {
99: my $language = shift;
100:
101: $language = &Apache::loncommon::latexlanguage($language); # Translate -> latex language.
102:
103: # If there is no latex language there's not much we can do:
104:
105: if ($language) {
106: &require_language($language);
107: my $babel_hyphenation = "\\selectlanguage{$language}";
108:
109: return $babel_hyphenation;
110: } else {
111: return '';
112: }
113: }
114: ##
115: # Selects hyphenation based on the current problem metadata.
116: # This requires that
117: # - There is a language metadata item set for the problem.
118: # - The language has a latex/babel hyphenation.
119: #
120: # @note: Uses &Apache::lonxml::request to locate the Uri associated with
121: # this problem.
122: # @return string (possibly empty).
123: # @retval If not empty an appropriate \selectlanguage{} directive.
124: #
125: sub select_metadata_hyphenation {
126: my $uri = $Apache::lonxml::request->uri;
127: my $language = &Apache::lonnet::metadata($uri, 'language');
128: my $latex_language = &Apache::loncommon::latexhyphenation($language);
129: if ($latex_language) {
130: return '\selectlanguage{'.$latex_language."}\n";
131: }
132: return ''; # no latex hyphenation or no lang metadata.
133: }
134:
135:
136: ##
137: # Clears the set of languages required by the document being rendered.
138: #
139: sub clear_required_languages {
140: %languages_required = ();
141: }
142: ##
143: # Allows an external client of this module to register a need for a language:
144: #
145: # @param LaTeX language required:
146: #
147: sub require_language {
148: my $language = shift;
149: $languages_required{$language} = 1;
150: }
151:
152: ##
153: # Provides the header for babel that indicates the languages
154: # the document requires.
155: # @return string
156: # @retval \usepackage[lang1,lang2...]{babel}
157: # @retval '' if there are no languages_required.
158: sub languages_header {
159: my $header ='';
160: my @languages = (keys(%languages_required));
161:
162: # Only generate the header if there are languages:
163:
164: if (scalar @languages) {
165: my $language_list = join(',', (@languages));
166: $header = '\usepackage['.$language_list."]{babel}\n";
167: }
168: return $header;
169: }
170:
171: #----------------------------------------------------------------------------------
172:
1.10 albertel 173: sub start_web {
1.326 albertel 174: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 175: if ($target ne 'edit' && $target ne 'modified') {
176: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
177: if ($target eq 'web' || $target eq 'webgrade') {
178: return $bodytext;
179: }
180: } elsif ($target eq "edit" ) {
181: my $bodytext =
182: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
183: my $result = &Apache::edit::tag_start($target,$token);
184: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
185: return $result;
186: } elsif ( $target eq "modified" ) {
187: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 188: }
189: return '';
1.10 albertel 190: }
191:
192: sub end_web {
1.44 ng 193: return '';
1.10 albertel 194: }
195:
196: sub start_tex {
1.326 albertel 197: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 198: my $result='';
1.383 albertel 199: if ($target ne 'edit' && $target ne 'modified') {
200: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
201: if ($target eq 'tex') {
1.434 foxr 202:
203: # If inside a table, occurrences of \\ must be removed;
204: # else the table blows up.
205:
206: if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
207: $bodytext =~ s/\\\\//g;
208: }
1.432 foxr 209: return $bodytext.'{}';
1.383 albertel 210: }
211: } elsif ($target eq "edit" ) {
212: my $bodytext =
213: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
214: my $result = &Apache::edit::tag_start($target,$token);
215: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
216: return $result;
217: } elsif ( $target eq "modified" ) {
218: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 219: }
1.198 sakharuk 220: return $result;;
1.10 albertel 221: }
222:
223: sub end_tex {
1.44 ng 224: return '';
1.9 albertel 225: }
226:
1.400 albertel 227: sub homework_js {
1.512.2.9 raeburn 228: my ($postsubmit,$timeout);
229: if (($env{'request.course.id'}) && ($env{'request.state'} ne 'construct')) {
230: my $crstype;
231: if (&Apache::loncommon::course_type() eq 'Community') {
232: $crstype = 'community';
233: } else {
234: if ($env{'course.'.$env{'request.course.id'}.'.internal.coursecode'}) {
235: $crstype = 'official';
236: } elsif ($env{'course.'.$env{'request.course.id'}.'.internal.textbook'}) {
237: $crstype = 'textbook';
238: } else {
239: $crstype = 'unofficial';
240: }
241: }
242: $postsubmit = $env{'course.'.$env{'request.course.id'}.'.internal.postsubmit'};
243: if ($postsubmit eq '') {
244: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
245: $postsubmit = $domdefs{'postsubmit'};
246: unless ($postsubmit eq 'off') {
247: $timeout = $domdefs{$crstype.'postsubtimeout'};
248: }
249: } elsif ($postsubmit eq '0') {
250: $postsubmit = 'off';
251: } elsif ($postsubmit eq '1') {
252: $postsubmit = 'on';
253: $timeout = $env{'course.'.$env{'request.course.id'}.'.internal.postsubtimeout'};
254: if ($timeout eq '') {
255: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
256: $timeout = $domdefs{$crstype.'postsubtimeout'};
257: }
258: }
259: if ($timeout eq '') {
260: $timeout = 60;
261: }
262: } else {
263: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'request.role.domain'});
264: $postsubmit = $domdefs{'postsubmit'};
265: unless ($postsubmit eq 'off') {
266: $timeout = 60;
267: }
268: }
269: my $jstimeout = 0;
270: if ($timeout) {
271: $jstimeout = 1000 * $timeout;
272: }
1.400 albertel 273: return &Apache::loncommon::resize_textarea_js().
1.512.2.11 raeburn 274: &Apache::loncommon::colorfuleditor_js().
1.416 raeburn 275: &setmode_javascript().
1.512.2.9 raeburn 276: <<"JS";
1.400 albertel 277: <script type="text/javascript">
1.483 raeburn 278: // <![CDATA[
1.494 raeburn 279: function setSubmittedPart (part,prefix) {
280: if (typeof(prefix) == 'undefined') {
281: this.document.lonhomework.submitted.value="part_"+part;
282: } else {
283: for (var i=0;i<this.document.lonhomework.elements.length;i++) {
284: if (this.document.lonhomework.elements[i].name == prefix+'submitted') {
285: this.document.lonhomework.elements[i].value="part_"+part;
286: }
287: }
288: }
1.400 albertel 289: }
290:
1.512.2.9 raeburn 291: function disableAutoComplete (id) {
292: var field = document.getElementById(id);
293: if (field != null && field != undefined){
294: if ('autocomplete' in field) {
295: field.autocomplete = "off";
296: } else {
297: field.setAttribute("autocomplete", "off");
298: }
299: }
300: }
301:
1.400 albertel 302: function image_response_click (which, e) {
303: init_geometry();
304: if (!e) { e = window.event; } //IE
305: var input_element = document.lonhomework.elements[which];
1.401 albertel 306: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 307: var token = token_element.value;
1.401 albertel 308: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 309: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
310: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
311: var click = x+':'+y;
312: input_element.value = click;
1.485 raeburn 313: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
1.400 albertel 314: }
1.512.2.9 raeburn 315:
316: var submithandled = 0;
317: var keypresshandled = 0;
318: var postsubmit = '$postsubmit';
319:
320: \$(document).ready(function(){
321: if (postsubmit != 'off') {
322: \$(document).keypress(function(event){
323: var keycode = (event.keyCode ? event.keyCode : event.which);
324: if ((keycode == '13') && (keypresshandled == 0)) {
325: if ( \$( document.activeElement ).hasClass("LC_textline") ) {
326: keypresshandled = 1;
327: var idsArray = \$( document.activeElement ).attr("id").split(/HWVAL_/);
328: if (idsArray.length) {
329: event.preventDefault();
330: var itemsArray = idsArray[1].split(/_/);
331: var buttonId = idsArray[0]+'submit_'+itemsArray[0];
332: \$("#"+buttonId).trigger("click");
333: }
334: }
335: }
336: });
337:
338: \$(document).delegate('form :submit', 'click', function( event ) {
339: if ( \$( this ).hasClass( "LC_hwk_submit" ) ) {
340: var buttonId = this.id;
341: var timeout = $jstimeout;
342: if (submithandled == 0) {
343: submithandled = 1;
344: \$( "#msg_"+buttonId ).css({"display": "inline","background-color": "#87cefa",
345: "color": "black","padding": "2px"}) ;
1.512.2.18 raeburn 346: if (( \$(this.form).attr("id") == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
1.512.2.9 raeburn 347: if (buttonId != "all_submit") {
348: \$( ".LC_status_"+buttonId ).hide();
1.512.2.18 raeburn 349: }
350: if (( "#"+buttonId+"_pressed" ).length) {
351: \$( "#"+buttonId+"_pressed" ).val( "1" );
1.512.2.9 raeburn 352: }
353: } else {
354: \$( ".LC_status_"+buttonId ).hide();
355: }
356: \$(this.form).submit();
357: \$( ".LC_hwk_submit" ).prop( "disabled", true);
358: \$( ".LC_textline" ).prop( "readonly", "readonly");
359: event.preventDefault();
360:
361: if (timeout > 0) {
362: setTimeout(function(){
363: \$( "#msg_"+buttonId ).css({"display": "none"});
1.512.2.18 raeburn 364: if (( \$(this.form).attr("id") == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
365: if (( "#"+buttonId+"_pressed" ).length) {
366: \$( "#"+buttonId+"_pressed" ).val( "" );
1.512.2.9 raeburn 367: }
368: }
369: \$( ".LC_hwk_submit" ).prop( "disabled", false);
370: \$( ".LC_textline" ).prop( "readonly", false);
371: submithandled = 0;
372: keypresshandled = 0;
373: }, timeout);
374: }
375: return true;
376: }
377: }
378: });
379: }
380: });
381:
1.483 raeburn 382: // ]]>
1.400 albertel 383: </script>
384: JS
385: }
386:
1.416 raeburn 387: sub setmode_javascript {
388: return <<"ENDSCRIPT";
389: <script type="text/javascript">
1.485 raeburn 390: // <![CDATA[
1.416 raeburn 391: function setmode(form,probmode) {
1.512.2.13 raeburn 392: var initial = form.problemmode.value;
1.416 raeburn 393: form.problemmode.value = probmode;
394: form.submit();
1.512.2.13 raeburn 395: form.problemmode.value = initial;
1.416 raeburn 396: }
1.485 raeburn 397: // ]]>
1.416 raeburn 398: </script>
399: ENDSCRIPT
400: }
401:
1.48 albertel 402: sub page_start {
1.345 albertel 403: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
404: $extra_head)=@_;
1.159 albertel 405: my %found;
1.207 albertel 406: foreach my $taginside (@$tagstack) {
1.159 albertel 407: foreach my $taglookedfor ('html','body','form') {
408: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
409: }
410: }
411:
1.343 albertel 412: if ($target eq 'tex') {
413: return
414: &Apache::londefdef::start_html($target,$token,$tagstack,
415: $parstack,$parser,$safeeval);
416: }
417:
1.474 raeburn 418: $extra_head .= &homework_js().
419: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
420: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
1.512.2.12 raeburn 421: my %textarea_args;
422: if (($env{'request.state'} ne 'construct') ||
423: ($env{'environment.nocodemirror'})) {
424: %textarea_args = (
1.474 raeburn 425: dragmath => 'math',
426: );
1.512.2.12 raeburn 427: }
1.474 raeburn 428: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 429: }
1.478 raeburn 430: my $is_task = ($env{'request.uri'} =~ /\.task$/);
1.512.2.9 raeburn 431: my ($needs_upload,$partlist);
1.495 raeburn 432: my ($symb)= &Apache::lonnet::whichuser();
433: my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
1.478 raeburn 434: if ($is_task) {
1.495 raeburn 435: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
1.493 raeburn 436: } else {
437: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.uploadedfiletypes") ne '') {
1.495 raeburn 438: unless ($env{'request.state'} eq 'construct') {
439: my $navmap = Apache::lonnavmaps::navmap->new();
440: if (ref($navmap)) {
441: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 442: my $is_page;
443: if (ref($mapres)) {
444: $is_page = $mapres->is_page();
445: }
446: unless ($is_page) {
1.495 raeburn 447: $needs_upload = 1;
448: }
1.512.2.9 raeburn 449: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
450: my $res = $navmap->getBySymb($symb);
451: if (ref($res)) {
452: $partlist = $res->parts();
453: }
454: }
1.495 raeburn 455: }
456: }
1.493 raeburn 457: } else {
458: unless ($env{'request.state'} eq 'construct') {
459: my $navmap = Apache::lonnavmaps::navmap->new();
460: if (ref($navmap)) {
1.495 raeburn 461: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 462: my $is_page;
463: if (ref($mapres)) {
464: $is_page = $mapres->is_page();
465: }
1.512.2.9 raeburn 466: if ($is_page) {
467: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
468: my $res = $navmap->getBySymb($symb);
469: if (ref($res)) {
470: $partlist = $res->parts();
471: }
472: }
473: } else {
1.495 raeburn 474: my $res = $navmap->getBySymb($symb);
475: if (ref($res)) {
1.512.2.9 raeburn 476: $partlist = $res->parts();
1.495 raeburn 477: if (ref($partlist) eq 'ARRAY') {
478: foreach my $part (@{$partlist}) {
479: my @types = $res->responseType($part);
480: my @ids = $res->responseIds($part);
481: for (my $i=0; $i < scalar(@ids); $i++) {
482: if ($types[$i] eq 'essay') {
483: my $partid = $part.'_'.$ids[$i];
484: if (&Apache::lonnet::EXT("resource.$partid.uploadedfiletypes") ne '') {
485: $needs_upload = 1;
486: last;
487: }
1.493 raeburn 488: }
489: }
490: }
1.495 raeburn 491: }
492: }
1.493 raeburn 493: }
494: }
495: }
496: }
1.495 raeburn 497: if ($needs_upload) {
1.512.2.17 raeburn 498: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js().
499: '<script type="text/javascript" '.
500: 'src="/res/adm/includes/file_upload.js"></script>';
1.495 raeburn 501: }
1.478 raeburn 502: }
1.425 raeburn 503:
1.344 albertel 504: my %body_args;
505: if (defined($found{'html'})) {
506: $body_args{'skip_phases'}{'head'}=1;
507: } else {
1.343 albertel 508:
1.345 albertel 509: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 510:
1.379 albertel 511: $extra_head .= &Apache::londefdef::generate_css_links();
512:
1.384 albertel 513: if ($env{'request.state'} eq 'construct') {
1.343 albertel 514: $extra_head.=&Apache::edit::js_change_detection().
515: "<script type=\"text/javascript\">\n".
516: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
517: &Apache::loncommon::browser_and_searcher_javascript().
518: "\n</script>\n";
1.512.2.9 raeburn 519: if ($target eq 'edit') {
520: $extra_head .= &Apache::edit::js_update_linknum();
521: }
1.343 albertel 522: }
1.159 albertel 523: }
1.343 albertel 524:
1.446 bisitz 525: my $pageheader = '';
1.344 albertel 526: if (defined($found{'body'})) {
527: $body_args{'skip_phases'}{'body'}=1;
528: } elsif (!defined($found{'body'})
529: && $env{'request.state'} eq 'construct') {
1.343 albertel 530: if ($target eq 'web' || $target eq 'edit') {
1.512.2.3 raeburn 531: # Breadcrumbs for Authoring Space
1.450 bisitz 532: &Apache::lonhtmlcommon::clear_breadcrumbs();
533: &Apache::lonhtmlcommon::add_breadcrumb({
1.512.2.3 raeburn 534: 'text' => 'Authoring Space',
1.497 raeburn 535: 'href' => &Apache::loncommon::authorspace($env{'request.uri'}),
1.450 bisitz 536: });
1.460 droeschl 537: # breadcrumbs (and tools) will be created
538: # in start_page->bodytag->innerregister
539:
1.450 bisitz 540: # FIXME Where are we?
541: # &Apache::lonhtmlcommon::add_breadcrumb({
542: # 'text' => 'Problem Editing', # 'Problem Testing'
543: # 'href' => '',
544: # });
1.460 droeschl 545: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 546: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 547: }
1.272 albertel 548: } elsif (!defined($found{'body'})) {
1.343 albertel 549: my %add_entries;
1.159 albertel 550: my $background=&Apache::lonxml::get_param('background',$parstack,
551: $safeeval);
1.343 albertel 552: if ($background ne '' ) {
553: $add_entries{'background'} = $background;
554: }
1.344 albertel 555:
1.290 albertel 556: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
557: $safeeval);
1.446 bisitz 558: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 559:
1.446 bisitz 560: $body_args{'bgcolor'} = $bgcolor;
561: # $body_args{'no_title'} = 1;
562: $body_args{'force_register'} = 1;
563: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 564: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 565: $body_args{'only_body'} = 1;
1.512.2.7 raeburn 566: } elsif ($target eq 'web') {
567: $body_args{'print_suppress'} = 1;
1.446 bisitz 568: }
1.344 albertel 569: }
1.365 albertel 570: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 571: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
572: \%body_args);
1.446 bisitz 573: $page_start .= $pageheader;
1.462 raeburn 574: if (!defined($found{'body'})
575: && $env{'request.state'} ne 'construct'
576: && ($target eq 'web' || $target eq 'webgrade')) {
577:
578: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
579: if ($symb eq '' && !$publicuser) {
580: $page_start .= '<p class="LC_info">'
581: .&mt('Browsing resource, all submissions are temporary.')
582: .'</p>';
1.457 bisitz 583: }
1.344 albertel 584: }
585:
1.409 albertel 586: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 587: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 588: }
589: my $form_tag_start;
590: if (!defined($found{'form'})) {
1.337 albertel 591: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 592: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 593: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 594: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 595: $form_tag_start.=$uri.'" ';
596: if ($target eq 'edit') {
597: $form_tag_start.=&Apache::edit::form_change_detection();
598: }
1.493 raeburn 599: my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
600: my ($path,$multiresp) =
601: &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
1.495 raeburn 602: if (($is_task) || ($needs_upload)) {
603: $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
1.478 raeburn 604: }
1.368 albertel 605: $form_tag_start.='>'."\n";
1.355 albertel 606:
607: if ($symb =~ /\S/) {
608: $symb=
609: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
610: $form_tag_start.=
1.368 albertel 611: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 612: }
1.159 albertel 613: }
1.512.2.9 raeburn 614: return ($page_start,$form_tag_start,$partlist);
1.105 albertel 615: }
616:
1.141 matthew 617: #use Time::HiRes();
1.105 albertel 618: sub get_resource_name {
1.159 albertel 619: my ($parstack,$safeeval)=@_;
1.388 foxr 620: my $name;
1.204 albertel 621: if (defined($Apache::lonhomework::name)) {
1.388 foxr 622: $name = $Apache::lonhomework::name;
623: } else {
624: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 625: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 626: if ($name eq '') {
627: $name=&Apache::lonnet::EXT('resource.title');
628: if ($name eq 'con_lost') { $name = ''; }
629: }
630: if ($name!~/\S+/) {
631: $name=$env{'request.uri'};
632: $name=~s-.*/([^/]+)$-$1-;
633: }
634: # The name has had html tags escaped:
635:
636: $name=~s/</</gs;
637: $name=~s/>/>/gs;
638:
639: $Apache::lonhomework::name=$name;
1.204 albertel 640: }
1.159 albertel 641: return $name;
1.105 albertel 642: }
643:
644: sub setup_rndseed {
1.512.2.9 raeburn 645: my ($safeeval,$target,$probpartlist)=@_;
1.367 albertel 646: my ($symb)=&Apache::lonnet::whichuser();
1.512.2.19 raeburn 647: my ($questiontype,$set_safespace,$rndseed,$numtries,$reqtries);
1.479 raeburn 648: if ($target eq 'analyze') {
649: $questiontype = $env{'form.grade_questiontype'};
650: }
651: unless (defined($questiontype)) {
652: $questiontype = $Apache::lonhomework::type;
653: }
1.512.2.19 raeburn 654: if ($Apache::lonhomework::type eq 'randomizetry') {
655: my $partfortries = $Apache::inputtags::part;
1.512.2.22 raeburn 656: #
657: # Where question type is "randomizetry" for a problem containing
658: # a single part (and unless type is explicitly set to not be
659: # "randomizetry" for that part), the number of tries used to
660: # determine randomization will be for that part, and randomization
661: # from calls to &random() in a perl script block before the part tag,
662: # will change based on the number of tries, and value of the
663: # "randomizeontries" parameter in effect for the single part.
664: #
1.512.2.19 raeburn 665: if (ref($probpartlist) eq 'ARRAY') {
1.512.2.22 raeburn 666: if ((@{$probpartlist} == 1) && ($probpartlist->[0] ne $partfortries)) {
667: if (&Apache::lonnet::EXT('resource.'.$probpartlist->[0].'.type') eq 'randomizetry') {
1.512.2.21 raeburn 668: $partfortries = $probpartlist->[0];
669: } else {
670: $partfortries = '';
671: }
1.512.2.19 raeburn 672: }
673: }
1.512.2.21 raeburn 674: if ($partfortries ne '') {
675: $numtries = $Apache::lonhomework::history{"resource.$partfortries.tries"};
676: $reqtries = &Apache::lonnet::EXT("resource.$partfortries.randomizeontries");
677: }
1.512.2.19 raeburn 678: }
1.512.2.14 raeburn 679: if (($env{'request.state'} eq "construct")
680: || ($symb eq '')
681: || ($Apache::lonhomework::type eq 'practice')
682: || ($Apache::lonhomework::history{'resource.CODE'})
683: || (($env{'form.code_for_randomlist'}) && ($target eq 'analyze'))) {
1.316 www 684: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 685: ['rndseed']);
1.284 albertel 686: $rndseed=$env{'form.rndseed'};
1.159 albertel 687: if (!$rndseed) {
1.162 albertel 688: $rndseed=$Apache::lonhomework::history{'rndseed'};
689: if (!$rndseed) {
690: $rndseed=time;
691: }
1.512.2.14 raeburn 692: unless ($env{'form.code_for_randomlist'}) {
693: $env{'form.rndseed'}=$rndseed;
694: }
1.162 albertel 695: }
1.512.2.20 raeburn 696: if ((($env{'request.state'} eq "construct") || ($symb eq '')) &&
1.479 raeburn 697: ($Apache::lonhomework::type eq 'randomizetry')) {
1.512.2.19 raeburn 698: if ($numtries) {
699: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
700: my $inc = int($numtries/$reqtries);
701: $rndseed += $inc;
702: } else {
703: $rndseed += $numtries;
704: }
1.479 raeburn 705: }
1.480 raeburn 706: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 707: }
1.374 albertel 708: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
709: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 710: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 711: srand(time);
712: $rndseed=int(rand(2100000000));
1.284 albertel 713: $env{'form.rndseed'}=$rndseed;
714: delete($env{'form.resetdata'});
715: delete($env{'form.newrandomization'});
1.159 albertel 716: }
1.488 www 717: $rndseed=~s/\,/\:/g;
718: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 719: if (defined($rndseed)) {
720: my ($c1,$c2)=split(/\:/,$rndseed);
721: unless ($c2) { $c2=0; }
722: unless (($c1==int($c1)) && ($c2==int($c2))) {
723: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
724: }
1.187 albertel 725: }
1.512.2.14 raeburn 726: if (($env{'form.code_for_randomlist'}) && ($target eq 'analyze')) {
727: $env{'form.CODE'} = $env{'form.code_for_randomlist'};
728: $rndseed=&Apache::lonnet::rndseed();
729: undef($env{'form.CODE'});
730: } elsif ($Apache::lonhomework::history{'resource.CODE'}) {
1.247 albertel 731: $rndseed=&Apache::lonnet::rndseed();
732: }
1.479 raeburn 733: $set_safespace = 1;
734: } elsif ($questiontype eq 'randomizetry') {
735: if ($target eq 'analyze') {
736: if (defined($env{'form.grade_rndseed'})) {
737: $rndseed = $env{'form.grade_rndseed'};
738: }
739: }
740: unless (($target eq 'analyze') && (defined($rndseed))) {
741: $rndseed=&Apache::lonnet::rndseed();
1.512.2.19 raeburn 742: my $curr_try = $numtries;
1.479 raeburn 743: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
744: $curr_try ++;
745: }
746: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
747: $rndseed = $1;
748: }
749: if ($curr_try) {
750: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
751: my $inc = int(($curr_try-1)/$reqtries);
752: $rndseed += $inc;
753: } else {
754: $rndseed += $curr_try;
755: }
756: }
757: }
758: $set_safespace = 1;
1.512.2.9 raeburn 759: if ($target eq 'grade') {
760: $Apache::lonhomework::rawrndseed = $rndseed;
761: }
1.479 raeburn 762: }
763: if ($set_safespace) {
764: if ($safeeval) {
765: &Apache::lonxml::debug("Setting rndseed to $rndseed");
766: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
767: }
768: }
769: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
770: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 771: }
772: return $rndseed;
1.105 albertel 773: }
774:
1.268 albertel 775: sub remember_problem_state {
776: return '
1.284 albertel 777: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
778: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
779: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 780: }
781:
1.487 www 782: sub problem_edit_action_button {
783: my ($name,$action,$accesskey,$text,$flag)=@_;
784: my $actionscript="setmode(this.form,'$action')";
785: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
786: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
787: }
788:
1.423 www 789: sub problem_edit_buttons {
1.487 www 790: my ($mode)=@_;
1.512.2.11 raeburn 791: # Buttons that save
792: my $result = '<div style="float:right">';
793: if ($mode eq 'editxml') {
794: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
795: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
796: } else {
797: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
798: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
799: }
800: $result.="\n</div>\n";
1.487 www 801: # Buttons that do not save
1.512.2.11 raeburn 802: $result .= '<div>'.
1.487 www 803: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
804: if ($mode eq 'editxml') {
805: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
806: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
1.512.2.11 raeburn 807: if ($env{'environment.nocodemirror'}) {
808: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
809: }
1.487 www 810: } else {
811: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
812: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
813: }
814: $result.="\n</div>";
815: return $result;
1.423 www 816: }
817:
818: sub problem_edit_header {
1.512.2.11 raeburn 819: my ($mode)=@_;
820: my $return = '<input type="hidden" name="submitted" value="edit" />'.
1.487 www 821: &remember_problem_state('edit').'
1.512.2.11 raeburn 822: <div class="LC_edit_problem_header">
823: <div class="LC_edit_problem_header_title">
824: '.&mt('Problem Editing').$mode.&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
825: </div><div class="LC_edit_actionbar" id="actionbar">'.
826: '<input type="hidden" name="problemmode" value="saveedit" />'.
827: &problem_edit_buttons();
828:
829: $return .= '</div></div>' . &Apache::lonxml::message_location();
830: $return .= '<link rel="stylesheet" href="/adm/codemirror/codemirror-combined.css" />
831: <script type="text/javascript" src="/adm/codemirror/codemirror-compressed-colorful.js"></script>';
832:
833: $return .= '<script type="text/javascript" src="/adm/jQuery/addons/jquery-scrolltofixed.js"></script>
834: <script type="text/javascript">
835: // unless internet explorer
836: if (!(window.navigator.appName == "Microsoft Internet Explorer" && (document.documentMode || document.compatMode))){
837: $(document).ready(
838: function() {
839: $(\'.LC_edit_actionbar\').scrollToFixed(
840: {
841: fixed: function(){
842: //$(this).find(\'.LC_edit_actionbar\').css(\'height\', \'31px\');
843: $(this).find(\'.LC_edit_actionbar\');
844: }
845: }
846: );
847: }
848: );
849: }
850: </script>
851: <table id="LC_edit_problem_colorful" border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
852: return $return;
1.105 albertel 853: }
854:
1.512.2.11 raeburn 855:
1.105 albertel 856: sub problem_edit_footer {
1.512.2.11 raeburn 857: my $resource = $env{'request.ambiguous'};
1.412 albertel 858: return '</td></tr></table><br />
859: <div class="LC_edit_problem_footer">
1.453 bisitz 860: <hr />'.
1.423 www 861: &problem_edit_buttons().'
1.459 bisitz 862: <hr style="clear:both;" />
1.512.2.11 raeburn 863: <script type="text/javascript">
864: restoreState("'.$resource.'");
865: restoreScrollPosition("'.$resource.'");
866: </script>
1.412 albertel 867: </div>
868: '.
1.342 albertel 869: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 870: }
871:
1.235 albertel 872: sub option {
873: my ($value,$name) = @_;
874: my $result ="<option value='".$value."' ";
1.284 albertel 875: if ($env{'form.'.$name} eq $value) {
1.235 albertel 876: $result.=" selected='on' ";
877: }
878: $result.='>';
879: return $result;
880: }
881:
1.105 albertel 882: sub problem_web_to_edit_header {
1.159 albertel 883: my ($rndseed)=@_;
1.406 albertel 884: my $result .= '<div class="LC_edit_problem_header">';
885:
886: if (!$Apache::lonhomework::parsing_a_task) {
887: $result .=
888: '<div class="LC_edit_problem_header_title">'.
889: &mt('Problem Testing').
890: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
891: '</div>';
892: } else {
893: $result .=
894: '<div class="LC_edit_problem_header_title">'.
895: &mt('Task Testing').
896: '</div>';
897: }
898:
1.315 albertel 899: my $show_all_foils_text =
900: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 901: &mt('Show All Instances')
902: : &mt('Show All Foils');
1.315 albertel 903:
1.452 bisitz 904: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
905: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 906: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 907: $show_all.= ' /> '.$show_all_foils_text
908: .'</label></span>';
1.406 albertel 909:
910:
1.384 albertel 911:
1.406 albertel 912: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 913: if (!$Apache::lonhomework::parsing_a_task) {
914: $result.="
1.406 albertel 915: <div class='LC_edit_problem_header_row1'>
916: <span class=\"LC_nobreak\">
1.405 albertel 917: ".&mt("Problem Status:")."
1.235 albertel 918: <select name='problemstate'>
1.270 albertel 919: <option value=''></option>
1.235 albertel 920: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
921: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
922: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
923: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
924: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
925: </select>
1.406 albertel 926: </span>
927: <span class=\"LC_nobreak\">
1.405 albertel 928: ".&mt("Problem Type:")."
1.235 albertel 929: <select name='problemtype'>
1.270 albertel 930: <option value=''></option>
1.512.2.1 raeburn 931: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 932: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 933: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 934: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
935: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
936: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 937: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 938: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 939: </select>
1.406 albertel 940: </span>
941: $show_all
942: </div>
943: <div class='LC_edit_problem_header_row2'>
944: <span class=\"LC_nobreak\">
1.405 albertel 945: ".&mt("Feedback Mode:")."
1.235 albertel 946: <select name='problemstatus'>
947: <option value=''></option>
1.242 albertel 948: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.512.2.6 raeburn 949: ".&option('no', 'problemstatus').&mt("Don't Show Incorrect/Correct Feedback")."</option>
1.405 albertel 950: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 951: </select>
1.406 albertel 952: </span>
953: ";
954:
1.376 albertel 955: } elsif ($Apache::lonhomework::parsing_a_task) {
956: $result.="
1.406 albertel 957: <div class='LC_edit_problem_header_row1'>
958: <span class=\"LC_nobreak\">
1.405 albertel 959: ".&mt("Problem Status:")."
1.376 albertel 960: <select name='problemstate'>
961: <option value=''></option>
962: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
963: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
964: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
965: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
966: </select>
1.406 albertel 967: </span>
968: $show_all
969: ";
970: }
971: $result.='
972: <span class="LC_nobreak">
973: '.&mt('Apply style file: ').'
974: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
975: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
976: </span>
1.422 www 977: </div>
978: <div class="LC_edit_problem_header_row1">'.
979: &Apache::lonxml::renderingoptions().'
1.406 albertel 980: </div>
981: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
982: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
983: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
984: </div>
1.453 bisitz 985: <hr />
1.406 albertel 986: <div class="LC_edit_problem_header_randomize_row">
987: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
988: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 989: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 990: $rndseed.'"
991: onchange="javascript:document.lonhomework.changerandseed.click()" />';
992:
993: if (!$Apache::lonhomework::parsing_a_task) {
994: my $numtoanalyze=$env{'form.numtoanalyze'};
995: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 996: $result .= '<span class="LC_nobreak">'.
997: &mt('[_1] for [_2] versions.',
1.416 raeburn 998: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 999: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
1000: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 1001: $numtoanalyze.'" size="5" />').
1002: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
1003: '</span>';
1004:
1.313 albertel 1005: }
1.406 albertel 1006:
1007: $result.='
1008: </div>
1.453 bisitz 1009: <hr />
1.447 bisitz 1010: <div>';
1.416 raeburn 1011: $result.='<input type="hidden" name="problemmode" value="view" />';
1012: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
1013: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
1014: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
1015: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 1016: $result.='
1017: </div>
1.453 bisitz 1018: <hr />
1.409 albertel 1019: '.&Apache::lonxml::message_location().'
1.406 albertel 1020: </div>';
1.159 albertel 1021: return $result;
1.48 albertel 1022: }
1023:
1.65 albertel 1024: sub initialize_storage {
1.357 albertel 1025: my ($given_symb) = @_;
1.353 albertel 1026: undef(%Apache::lonhomework::results);
1027: undef(%Apache::lonhomework::history);
1.357 albertel 1028: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1029: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 1030:
1031: # anonymous users (CODEd exams) have no data
1032: if ($name eq 'anonymous'
1033: && !defined($domain)) {
1034: return;
1035: }
1036:
1.333 albertel 1037: if ($env{'request.state'} eq 'construct'
1038: || $symb eq ''
1039: || $Apache::lonhomework::type eq 'practice') {
1040:
1041: my $namespace = $symb || $env{'request.uri'};
1042: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 1043: ($env{'form.resetdata'} eq &mt('New Problem Variation')
1044: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 1045: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1046: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
1047: &Apache::lonxml::debug("Attempt reset");
1048: }
1.159 albertel 1049: %Apache::lonhomework::history=
1.333 albertel 1050: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.512.2.9 raeburn 1051: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1052: &Apache::lonxml::debug("Return message of $temp");
1053: } else {
1054: %Apache::lonhomework::history=
1055: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1056: }
1.353 albertel 1057:
1.159 albertel 1058: #ignore error conditions
1.512.2.9 raeburn 1059: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1060: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 1061: }
1062:
1.435 jms 1063: =pod
1064:
1065: =item finalize_storage()
1066:
1.512.2.9 raeburn 1067: Stores away the result hash to a student's environment;
1068: checks form.grade_ for specific values, otherwise stores
1069: to the running user's environment.
1070:
1071: &check_correctness_changes() is called in two circumstances
1072: in which the results hash is to be stored permanently, for
1073: grading triggered by a student's submission, where feedback on
1074: correctness is to be provided to the student.
1075:
1076: 1. Immediately prior to storing the results hash
1077:
1078: To handle the case where a student's submission (and award) were
1079: stored after history was retrieved in &initialize_storage(), e.g.,
1080: if a student submitted answers in quick succession (e.g., from
1081: multiple tabs). &Apache::inputtags::hidealldata() is called for
1082: any parts with out-of-order storage (i.e., correct then incorrect,
1083: where awarded >= 1 when correct).
1084:
1085: 2. Immediately after storing the results hash
1086:
1087: To handle the case where lond on the student's homeserver returns
1088: delay:N -- where N is the number of transactions between the last
1089: retrieved in &initialize_storage() and the last stored immediately
1090: before permanent storage of the current transaction via
1091: lond::store_handler(). &Apache::grades::makehidden() is called
1092: for any parts with out-of-order storage (i.e., correct then incorrect,
1093: where awarded >= 1 when correct).
1094:
1095: Will call &store_aggregates() to increment totals for attempts,
1096: students, and corrects, if running user has student role.
1.435 jms 1097:
1098: =cut
1099:
1100:
1.65 albertel 1101: sub finalize_storage {
1.357 albertel 1102: my ($given_symb) = @_;
1.159 albertel 1103: my $result;
1.289 albertel 1104: if (%Apache::lonhomework::results) {
1.323 albertel 1105: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
1106: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 1107: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1108: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 1109: if ($env{'request.state'} eq 'construct'
1110: || $symb eq ''
1111: || $Apache::lonhomework::type eq 'practice') {
1112: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 1113: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 1114: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 1115: $namespace,'',$domain,$name);
1.159 albertel 1116: &Apache::lonxml::debug('Construct Store return message:'.$result);
1117: } else {
1.512.2.9 raeburn 1118: my ($laststore,$checkedparts,@parts,%postcorrect);
1119: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1120: (!$Apache::lonhomework::scantronmode) && (!defined($env{'form.grade_symb'})) &&
1121: (!defined($env{'form.grade_courseid'}))) {
1122: if ($Apache::lonhomework::history{'version'}) {
1123: $laststore = $Apache::lonhomework::history{'version'}.'='.
1124: $Apache::lonhomework::history{'timestamp'};
1125: } else {
1126: $laststore = '0=0';
1127: }
1128: my %record = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1129: if ($record{'version'}) {
1130: my ($newversion,$oldversion,$oldtimestamp);
1131: if ($Apache::lonhomework::history{'version'}) {
1132: $oldversion = $Apache::lonhomework::history{'version'};
1133: $oldtimestamp = $Apache::lonhomework::history{'timestamp'};
1134: } else {
1135: $oldversion = 0;
1136: $oldtimestamp = 0;
1137: }
1138: if ($record{'version'} > $oldversion) {
1139: if ($record{'timestamp'} >= $oldtimestamp) {
1140: $laststore = $record{'version'}.'='.$record{'timestamp'};
1141: $newversion = $record{'version'} + 1;
1142: $checkedparts = 1;
1143: foreach my $key (keys(%Apache::lonhomework::results)) {
1144: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1145: my $part = $1;
1146: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1147: push(@parts,$part);
1148: }
1149: }
1150: }
1151: if (@parts) {
1152: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1153: \%record,\@parts,$newversion,
1154: $oldversion);
1155: if (@parts_to_hide) {
1156: foreach my $part (@parts_to_hide) {
1157: $postcorrect{$part} = 1;
1158: &Apache::inputtags::hidealldata($part);
1159: }
1160: }
1161: }
1162: }
1163: }
1164: }
1165: }
1.159 albertel 1166: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
1.512.2.9 raeburn 1167: $symb,$courseid,$domain,$name,$laststore);
1168: if ($result =~ /^delay\:(\d+)$/) {
1169: my $numtrans = $1;
1170: my ($oldversion) = split(/=/,$laststore);
1171: if ($numtrans) {
1172: my $newversion = $oldversion + 1 + $numtrans;
1173: my @possparts;
1174: if ($checkedparts) {
1175: foreach my $part (@parts) {
1176: unless ($postcorrect{$part}) {
1177: push(@possparts,$part);
1178: }
1179: }
1180: } else {
1181: foreach my $key (keys(%Apache::lonhomework::results)) {
1182: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1183: my $part = $1;
1184: unless ($postcorrect{$part}) {
1185: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1186: push(@possparts,$part);
1187: }
1188: }
1189: }
1190: }
1191: }
1192: if (@possparts) {
1193: my %newrecord = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1194: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1195: \%newrecord,\@possparts,$newversion,
1196: $oldversion);
1197: if (@parts_to_hide) {
1198: my $partslist = join(',',@parts_to_hide);
1199: &Apache::grades::makehidden($newversion,$partslist,\%newrecord,$symb,$domain,$name,1);
1200: }
1201: }
1202: }
1203: }
1.159 albertel 1204: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 1205: &store_aggregates($symb,$courseid);
1.159 albertel 1206: }
1.323 albertel 1207: } else {
1208: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 1209: }
1.159 albertel 1210: return $result;
1.65 albertel 1211: }
1212:
1.435 jms 1213: =pod
1214:
1.512.2.9 raeburn 1215: =item check_correctness_changes()
1216:
1217: For all parts for which current results contain a solved status
1218: of "incorrect_attempted", check if there was a transaction in which
1219: solved was set to "correct_by_student" in the time since the last
1220: transaction (retrieved when &initialize_storage() was called i.e.,
1221: when &start_problem() was called), unless:
1222: (a) questiontype parameter is set to survey or anonymous survey (+/- credit)
1223: (b) problemstatus is set to no or no_feedback_ever
1224: If such a transaction exists, and did not occur after "reset status"
1225: by a user with grading privileges, then the current transaction is an
1226: example of an out-of-order transaction (i.e., incorrect occurring after
1227: correct). Accordingly, the current transaction should be hidden.
1228:
1229: =cut
1230:
1231:
1232: sub check_correctness_changes {
1233: my ($symb,$courseid,$domain,$name,$record,$parts,$newversion,$oldversion) = @_;
1234: my @parts_to_hide;
1235: unless ((ref($record) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
1236: return @parts_to_hide;
1237: }
1238: if (@{$parts}) {
1239: my $usec;
1240: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1241: ($env{'request.course.id'} eq $courseid)) {
1242: $usec = $env{'request.course.sec'};
1243: } else {
1244: $usec = &Apache::lonnet::getsection($domain,$name,$courseid);
1245: }
1246: foreach my $id (@{$parts}) {
1247: next if (($Apache::lonhomework::results{'resource.'.$id.'.type'} =~ /survey/) ||
1248: (&Apache::lonnet::EXT("resource.$id.problemstatus",$symb,
1249: $domain,$name,$usec,undef,$courseid) =~ /^no/));
1250: my $reset;
1251: for (my $i=$newversion-1; $i>=$oldversion; $i--) {
1252: if (($record->{$i.':resource.'.$id.'.regrader'}) &&
1253: ($record->{$i.':resource.'.$id.'.tries'} eq '') &&
1254: ($record->{$i.':resource.'.$id.'.award'} eq '')) {
1255: $reset = 1;
1256: } elsif (($record->{$i.":resource.$id.solved"} eq 'correct_by_student') &&
1257: ($record->{$i.":resource.$id.awarded"} >= 1)) {
1258: unless ($reset) {
1259: push(@parts_to_hide,$id);
1260: last;
1261: }
1262: }
1263: }
1264: }
1265: }
1266: return @parts_to_hide;
1267: }
1268:
1269: =pod
1270:
1.435 jms 1271: item store_aggregates()
1272:
1273: Sends hash of values to be incremented in nohist_resourcetracker.db
1274: for the course. Increments total number of attempts, unique students
1275: and corrects for each part for an instance of a problem, as appropriate.
1276:
1277: =cut
1278:
1.285 raeburn 1279: sub store_aggregates {
1280: my ($symb,$courseid) = @_;
1.479 raeburn 1281: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 1282: my @parts;
1.288 albertel 1283: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
1284: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 1285: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 1286: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 1287: push(@parts, $1);
1.285 raeburn 1288: }
1289: }
1.286 albertel 1290: foreach my $part (@parts) {
1.470 raeburn 1291: if ($env{'request.role'} =~/^st/) {
1292: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
1293: eq 'APPROX_ANS' ||
1294: $Apache::lonhomework::results{'resource.'.$part.'.award'}
1295: eq 'EXACT_ANS') {
1296: $aggregate{$symb."\0".$part."\0correct"} = 1;
1297: }
1298: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1299: $aggregate{$symb."\0".$part."\0users"} = 1;
1300: } else {
1301: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1302: if ($last_reset) {
1303: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1304: $aggregate{$symb."\0".$part."\0users"} = 1;
1305: }
1306: }
1307: }
1308: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 1309: }
1.470 raeburn 1310: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 1311: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
1312: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
1313: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
1314: $randtrycounter{$symb."\0".$part} = 1;
1315: } else {
1316: $anoncounter{$symb."\0".$part} = 1;
1317: }
1.470 raeburn 1318: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
1319: if ($needsrelease) {
1320: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
1321: if ($curr_required eq '') {
1.471 raeburn 1322: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1323: } else {
1324: my ($currmajor,$currminor) = split(/\./,$curr_required);
1325: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
1326: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 1327: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1328: }
1.292 raeburn 1329: }
1330: }
1.285 raeburn 1331: }
1332: }
1.512.2.9 raeburn 1333: if (keys(%aggregate) > 0) {
1.289 albertel 1334: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 1335: $cdomain,$cname);
1336: }
1.472 raeburn 1337: if (keys(%anoncounter) > 0) {
1.481 raeburn 1338: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
1339: $cdomain,$cname);
1.472 raeburn 1340: }
1.479 raeburn 1341: if (keys(%randtrycounter) > 0) {
1.481 raeburn 1342: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
1343: $cdomain,$cname);
1.479 raeburn 1344: }
1.292 raeburn 1345: }
1.289 albertel 1346:
1.65 albertel 1347: sub checkout_msg {
1.211 albertel 1348: my %lt=&Apache::lonlocal::texthash(
1349: 'resource'=>'The resource needs to be checked out',
1350: '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.',
1351: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
1.512.2.1 raeburn 1352: 'checkout'=>'Check out Exam for Viewing',
1353: 'checkout?'=>'Check out Exam?');
1.352 albertel 1354: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 1355: return (<<ENDCHECKOUT);
1.211 albertel 1356: <h2>$lt{'resource'}</h2>
1357: <p>$lt{'id_expln'}</p>
1.449 bisitz 1358: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 1359: <form name="checkout" method="post" action="$uri">
1.91 albertel 1360: <input type="hidden" name="doescheckout" value="yes" />
1.512.2.4 raeburn 1361: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onclick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 1362: </form>
1363: ENDCHECKOUT
1364: }
1365:
1.252 albertel 1366: sub firstaccess_msg {
1.253 albertel 1367: my ($time,$symb)=@_;
1.414 albertel 1368: my $result;
1369: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1370: if ($interval[1] eq 'map') {
1371: my ($map)=&Apache::lonnet::decode_symb($symb);
1372: my $foldertitle=&Apache::lonnet::gettitle($map);
1373:
1374: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 1375: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
1376: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1377: ,$foldertitle,$time)."</p>";
1.414 albertel 1378: } elsif ($interval[1] eq 'course') {
1379: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 1380: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 1381: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 1382: ,$course,$time)."</p>";
1.414 albertel 1383: } else {
1384: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1385: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1386: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1387: ,$title,$time)."</p>";
1.414 albertel 1388: }
1.352 albertel 1389: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1390: my $buttontext = &mt('Show Resource');
1391: my $timertext = &mt('Start Timer?');
1.512.2.24! raeburn 1392: my $shownsymb = &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb),'\'"<>&');
1.414 albertel 1393: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1394: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1395: <input type="hidden" name="markaccess" value="yes" />
1.512.2.24! raeburn 1396: <input type="hidden" name="symb" value="$shownsymb" />
1.512.2.4 raeburn 1397: <input type="button" name="accessbutton" value="$buttontext" onclick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1398: </form>
1399: ENDCHECKOUT
1.414 albertel 1400: return $result;
1.252 albertel 1401: }
1402:
1.204 albertel 1403: sub init_problem_globals {
1404: my ($type)=@_;
1405: #initialize globals
1.308 foxr 1406: # For problems, we start out in part 0 (outside a <part> tag).
1407: # and part 0 is used to describe the main body of the <problem>
1408: #
1.204 albertel 1409: if ($type eq 'problem') {
1410: $Apache::inputtags::part='0';
1411: @Apache::inputtags::partlist=('0');
1.405 albertel 1412: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1413: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1414:
1.266 albertel 1415: } elsif ($type eq 'library') {
1.204 albertel 1416: $Apache::inputtags::part='';
1417: @Apache::inputtags::partlist=();
1.405 albertel 1418: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1419: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1420:
1.304 albertel 1421: } elsif ($type eq 'Task') {
1422: $Apache::inputtags::part='0';
1423: @Apache::inputtags::partlist=('0');
1.405 albertel 1424: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1425: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1426: }
1.477 www 1427: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1428: @Apache::inputtags::responselist = ();
1429: @Apache::inputtags::importlist = ();
1430: @Apache::inputtags::previous=();
1431: @Apache::inputtags::previous_version=();
1.512.2.10 raeburn 1432: $Apache::inputtags::leniency='';
1.204 albertel 1433: $Apache::structuretags::printanswer='No';
1434: @Apache::structuretags::whileconds=();
1435: @Apache::structuretags::whilebody=();
1436: @Apache::structuretags::whileline=();
1437: $Apache::lonhomework::scantronmode=0;
1.512.2.21 raeburn 1438: $Apache::lonhomework::randomizetrypart=0;
1.204 albertel 1439: undef($Apache::lonhomework::name);
1.358 albertel 1440: undef($Apache::lonhomework::default_type);
1441: undef($Apache::lonhomework::type);
1.204 albertel 1442: }
1443:
1444: sub reset_problem_globals {
1445: my ($type)=@_;
1446: undef(%Apache::lonhomework::history);
1447: undef(%Apache::lonhomework::results);
1448: undef($Apache::inputtags::part);
1.512.2.10 raeburn 1449: undef($Apache::inputtags::leniency);
1.498 raeburn 1450: if ($type eq 'Task') {
1451: undef($Apache::inputtags::slot_name);
1.512.2.9 raeburn 1452: } elsif ($type eq 'problem') {
1453: undef($Apache::lonhomework::rawrndseed);
1.498 raeburn 1454: }
1.208 albertel 1455: #don't undef this, lonhomework.pm takes care of this, we use this to
1456: #detect if we try to do 2 problems in one file
1457: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1458: undef($Apache::lonhomework::name);
1.358 albertel 1459: undef($Apache::lonhomework::default_type);
1460: undef($Apache::lonhomework::type);
1461: undef($Apache::lonhomework::scantronmode);
1.512.2.21 raeburn 1462: undef($Apache::inputtags::randomizetrypart);
1.358 albertel 1463: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1464: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1465: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1466: }
1467:
1.241 albertel 1468: sub set_problem_state {
1.240 albertel 1469: my ($part)=@_;
1.284 albertel 1470: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1471: $Apache::lonhomework::history{"resource.$part.solved"}=
1472: 'correct_by_student';
1473: }
1474: }
1475:
1.241 albertel 1476: sub get_problem_status {
1477: my ($part)=@_;
1.267 albertel 1478: my $problem_status;
1.284 albertel 1479: if ($env{'request.state'} eq 'construct' &&
1480: defined($env{'form.problemstatus'})) {
1481: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1482: } else {
1483: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1484: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1485: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1486: }
1487: return $problem_status;
1488: }
1489:
1.9 albertel 1490: sub start_problem {
1.326 albertel 1491: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1492:
1.311 foxr 1493: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1494: if (!$Apache::lonxml::metamode) {
1495: &Apache::lonxml::startredirection();
1496: }
1.311 foxr 1497:
1.308 foxr 1498: # Problems don't nest and we don't allow more than one <problem> in
1499: # a .problem file.
1500: #
1.184 albertel 1501: if ( $Apache::inputtags::part ne '' ||
1502: $Apache::lonhomework::parsing_a_problem) {
1503: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1504: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1505: return '';
1506: }
1.184 albertel 1507:
1508: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1509: &init_problem_globals('problem');
1.166 albertel 1510:
1.284 albertel 1511: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1512: $Apache::lonhomework::scantronmode=1;
1513: }
1.161 albertel 1514:
1.159 albertel 1515: if ($target ne 'analyze') {
1.415 raeburn 1516: my $type = &Apache::lonnet::EXT('resource.0.type');
1517: $Apache::lonhomework::type=$type;
1.284 albertel 1518: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1519: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1520: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1521: }
1.332 albertel 1522: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1523: }
1.164 albertel 1524: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1525: my $uri=$env{'request.uri'};
1.159 albertel 1526: if ($uri=~/\.(\w+)$/) {
1527: $Apache::lonhomework::type=$1;
1528: &Apache::lonxml::debug("Using type of $1");
1529: } else {
1530: $Apache::lonhomework::type='problem';
1531: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1532: }
1.87 albertel 1533: }
1.301 albertel 1534: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1535:
1.363 albertel 1536: &initialize_storage();
1.389 albertel 1537: if ($target ne 'analyze'
1538: && $env{'request.state'} eq 'construct') {
1539: &set_problem_state('0');
1540: }
1541:
1.366 albertel 1542: if ($target eq 'web') {
1543: &Apache::lonxml::debug(" grading history ");
1544: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1545: }
1.363 albertel 1546:
1.159 albertel 1547: #added vars to the scripting enviroment
1.213 albertel 1548: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1549: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1550: &Apache::run::run($expression,$safeeval);
1.159 albertel 1551: my $status;
1552: my $accessmsg;
1.508 raeburn 1553: my $resource_due;
1.159 albertel 1554:
1.343 albertel 1555: my $name= &get_resource_name($parstack,$safeeval);
1.512.2.16 raeburn 1556: my ($result,$form_tag_start,$slot_name,$slot,$probpartlist,$firstaccres);
1.506 raeburn 1557:
1558: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1559: $target eq 'tex') {
1560: if ($env{'form.markaccess'}) {
1561: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1.512.2.16 raeburn 1562: my $is_set = &Apache::lonnet::set_first_access($interval[1],$interval[0]);
1563: unless (($is_set eq 'ok') || ($is_set eq 'already_set')) {
1564: $firstaccres = $is_set;
1565: }
1.506 raeburn 1566: }
1567:
1568: ($status,$accessmsg,$slot_name,$slot) =
1569: &Apache::lonhomework::check_slot_access('0','problem');
1570: push (@Apache::inputtags::status,$status);
1571: }
1572:
1.354 albertel 1573: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1574: || $target eq 'edit') {
1.512.2.9 raeburn 1575: ($result,$form_tag_start,$probpartlist) =
1.350 albertel 1576: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1577: $name);
1.512.2.9 raeburn 1578: } elsif (($target eq 'grade') && ($Apache::lonhomework::type eq 'randomizetry')) {
1579: my ($symb)= &Apache::lonnet::whichuser();
1.512.2.22 raeburn 1580: if ($symb ne '') {
1581: my $navmap = Apache::lonnavmaps::navmap->new();
1582: if (ref($navmap)) {
1583: my $res = $navmap->getBySymb($symb);
1584: if (ref($res)) {
1585: $probpartlist = $res->parts();
1586: }
1.512.2.9 raeburn 1587: }
1588: }
1.350 albertel 1589: }
1590:
1.284 albertel 1591: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1592:
1.479 raeburn 1593: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1594: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1595: $target eq 'tex') {
1.479 raeburn 1596:
1.512.2.22 raeburn 1597: my ($symb) = &Apache::lonnet::whichuser();
1.159 albertel 1598: #handle rand seed in construction space
1.512.2.22 raeburn 1599: if (($env{'request.state'} eq 'construct') || ($symb eq '')) {
1600: my $partorder=&Apache::lonnet::metadata($env{'request.uri'},'partorder');
1601: if ($partorder ne '') {
1602: @{$probpartlist} = split(/,/,$partorder);
1603: }
1604: }
1.512.2.9 raeburn 1605: my $rndseed=&setup_rndseed($safeeval,$target,$probpartlist);
1606: if (($target eq 'grade') && &Apache::response::submitted()) {
1607: if ($Apache::lonhomework::type eq 'randomizetry') {
1608: $Apache::lonhomework::results{'resource.0.rndseed'}=$rndseed;
1609: } else {
1610: my @parts;
1611: if (ref($probpartlist) eq 'ARRAY') {
1612: @parts = @{$probpartlist};
1613: }
1614: unless (@parts) {
1615: $Apache::lonhomework::results{'resource.0.rndseed'}=$Apache::lonhomework::rawrndseed;
1616: }
1617: }
1618: }
1.479 raeburn 1619:
1.333 albertel 1620: if ($env{'request.state'} ne "construct" &&
1621: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.512.2.20 raeburn 1622: my $rndseedval = $rndseed;
1623: if (($symb eq '') && ($Apache::lonhomework::type eq 'randomizetry')) {
1624: $rndseedval = $env{'form.rndseed'};
1625: }
1.162 albertel 1626: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.512.2.20 raeburn 1627: $rndseedval.'" />'.
1.462 raeburn 1628: '<input type="submit" name="resetdata"
1629: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1630: if (exists($env{'form.username'})) {
1631: $form_tag_start.=
1.164 albertel 1632: '<input type="hidden" name="username"
1.284 albertel 1633: value="'.$env{'form.username'}.'" />';
1.334 albertel 1634: }
1.462 raeburn 1635: if ($env{'request.role.adv'}) {
1636: $form_tag_start.= ' <label class="LC_nobreak">'
1637: .'<input type="checkbox" name="showallfoils"';
1638: if (defined($env{'form.showallfoils'})) {
1639: $form_tag_start.=' checked="checked"';
1640: }
1641: $form_tag_start.= ' /> '
1642: .&mt('Show All Foils')
1643: .'</label>';
1644: }
1.417 www 1645: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1646: $form_tag_start.=&practice_problem_header();
1.417 www 1647: }
1.462 raeburn 1648: $form_tag_start.='<hr />';
1.512.2.20 raeburn 1649: }
1650: if (($env{'request.state'} ne "construct") &&
1651: ($Apache::lonhomework::type eq 'randomizetry') &&
1652: ($status eq 'CAN_ANSWER')) {
1.512.2.21 raeburn 1653: my @parts;
1654: if (ref($probpartlist) eq 'ARRAY') {
1655: @parts = @{$probpartlist};
1656: }
1657: unless (@parts) {
1658: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1659: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1660: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries,$symb);
1661: }
1.479 raeburn 1662: }
1.324 albertel 1663:
1.159 albertel 1664: my $expression='$external::datestatus="'.$status.'";';
1665: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1666: &Apache::run::run($expression,$safeeval);
1667: &Apache::lonxml::debug("Got $status");
1.324 albertel 1668:
1.159 albertel 1669: if (( $status eq 'CLOSED' ) ||
1670: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1671: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1672: ( $status eq 'BANNED') ||
1.216 albertel 1673: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1674: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1675: ( $status eq 'NOTRESERVABLE') ||
1676: ( $status eq 'RESERVABLE') ||
1677: ( $status eq 'RESERVABLE_LATER') ||
1.216 albertel 1678: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1679: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1680: $style);
1.159 albertel 1681: if ( $target eq "web" ) {
1.343 albertel 1682: my $msg;
1.159 albertel 1683: if ($status eq 'UNAVAILABLE') {
1.504 golterma 1684: $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1.441 raeburn 1685: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.504 golterma 1686: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1.499 raeburn 1687: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1688: ($status eq 'NOTRESERVABLE')) {
1.504 golterma 1689: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1.253 albertel 1690: } elsif ($status ne 'NOT_YET_VIEWED') {
1.504 golterma 1691: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1.499 raeburn 1692: }
1.216 albertel 1693: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1694: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1695: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1696: $msg.=&checkout_msg();
1.252 albertel 1697: } elsif ($status eq 'NOT_YET_VIEWED') {
1.512.2.16 raeburn 1698: if ($firstaccres) {
1699: $msg .= '<p class="LC_error">'.
1700: &mt('A problem occurred when trying to start the timer.').'</p>';
1701: }
1.253 albertel 1702: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1703: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1704: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.499 raeburn 1705: } elsif ($status eq 'RESERVABLE') {
1706: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1707: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1708: '<br />'.
1709: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1710: } elsif ($status eq 'RESERVABLE_LATER') {
1711: $msg.=&mt('Window to make a reservation will open [_1].',
1712: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1713: } elsif ($status eq 'NOTRESERVABLE') {
1714: $msg.=&mt('Not available to make a reservation.');
1.159 albertel 1715: }
1716: $result.=$msg.'<br />';
1717: } elsif ($target eq 'tex') {
1.332 albertel 1718: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1719: : '\begin{minipage}{\textwidth}';
1.443 foxr 1720: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1721: $startminipage.'\vskip 0 mm';
1.159 albertel 1722: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1723: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1724: } else {
1.211 albertel 1725: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1726: }
1727: }
1.324 albertel 1728: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1729: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1730: $style);
1.324 albertel 1731: if ($target eq 'web') {
1.375 albertel 1732: $result .=
1733: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1734: } elsif ($target eq 'grade') {
1735: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1736: 'problem');
1737: }
1.159 albertel 1738: } elsif ($target eq 'web') {
1.508 raeburn 1739: if ($status eq 'CAN_ANSWER') {
1740: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1741: if ($slot_name ne '') {
1742: my $checked_in =
1743: $Apache::lonhomework::history{'resource.0.checkedin'};
1744: if ($checked_in eq '') {
1745: # unproctored slot access, self checkin
1746: &Apache::bridgetask::check_in('problem',undef,undef,
1747: $slot_name);
1748: $checked_in =
1749: $Apache::lonhomework::results{"resource.0.checkedin"};
1750: }
1751: if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1752: if ($slot->{'starttime'} < time()) {
1753: if (!$resource_due) {
1754: $resource_due = $slot->{'endtime'};
1755: } elsif ($slot->{'endtime'} < $resource_due) {
1756: $resource_due = $slot->{'endtime'};
1757: }
1758: }
1759: }
1760: }
1761: if ($resource_due) {
1762: my $time_left = $resource_due - time();
1763: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1764: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1765: }
1766: }
1767: }
1.368 albertel 1768: $result.="\n $form_tag_start \t".
1.227 albertel 1769: '<input type="hidden" name="submitted" value="yes" />';
1770: # create a page header and exit
1.284 albertel 1771: if ($env{'request.state'} eq "construct") {
1772: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1773: if ($Apache::lonhomework::type eq 'practice') {
1774: $result.= '<input type="submit" name="resetdata" '.
1775: 'value="'.&mt('New Problem Variation').'" />'.
1776: &practice_problem_header().'<hr />';
1.512.2.19 raeburn 1777: } elsif ($Apache::lonhomework::type eq 'randomizetry') {
1778: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1779: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1780: $result.=&randomizetry_problem_header($problemstatus,$reqtries);
1.428 raeburn 1781: }
1.227 albertel 1782: }
1783: # if we are viewing someone else preserve that info
1.284 albertel 1784: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1785: foreach my $field ('symb','courseid','domain','username') {
1786: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1787: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1788: }
1.479 raeburn 1789: foreach my $field ('trial','questiontype') {
1790: if ($env{"form.grade_$field"} ne '') {
1791: $result .= '<input type="hidden" name="grade_'.$field.
1792: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1793: }
1794: }
1.159 albertel 1795: }
1.490 raeburn 1796: if ($env{'form.grade_imsexport'}) {
1797: $result = '';
1798: }
1.159 albertel 1799: } elsif ($target eq 'tex') {
1.319 foxr 1800: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 1801: $result .= &select_metadata_hyphenation();
1802:
1.319 foxr 1803:
1.99 sakharuk 1804: }
1.159 albertel 1805: } elsif ($target eq 'edit') {
1.343 albertel 1806: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1807: $Apache::lonxml::warnings_error_header=
1808: &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 1809: my $temp=&Apache::edit::insertlist($target,$token);
1810: $result.=$temp;
1811: } elsif ($target eq 'modified') {
1812: $result=$token->[4];
1813: } else {
1814: # page_start returned a starting result, delete it if we don't need it
1815: $result = '';
1.99 sakharuk 1816: }
1.159 albertel 1817: return $result;
1.9 albertel 1818: }
1819:
1820: sub end_problem {
1.159 albertel 1821: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1822: my $result;
1.310 foxr 1823:
1.321 albertel 1824: if (!$Apache::lonxml::metamode) {
1825: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1826: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1827: }
1.319 foxr 1828:
1829: if ($target eq 'tex') {
1.321 albertel 1830: # Figure out the front matter and replace the
1831: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1832: # this in end_problem because whether or not we display due
1833: # dates depends on whether due dates have already been
1834: # displayed in the problem parts.
1835:
1.319 foxr 1836: my $frontmatter = '';
1837: my $startminipage = '';
1838: if (not $env{'form.problem_split'}=~/yes/) {
1839: $startminipage = '\begin{minipage}{\textwidth}';
1840: }
1841: my $id = $Apache::inputtags::part;
1842: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1843: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.512.2.9 raeburn 1844: my @packages = split(/,/,$packages);
1.319 foxr 1845: my $allow_print_points = 0;
1846: foreach my $partial_key (@packages) {
1847: if ($partial_key=~m/^part_0$/) {
1848: $allow_print_points=1;
1849: }
1850: }
1851: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1852: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1853: if (lc($env{'course.'.$env{'request.course.id'}.
1854: '.disableexampointprint'}) eq 'yes') {
1855: $allow_print_points=0;
1856: }
1857: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1858: 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 1859: &clear_required_languages();
1.319 foxr 1860: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1861: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1862:
1863: # Figure out what the due date is and if we need to print
1864: # it in the problem header. We have been logging the
1865: # last due date written to file.
1866:
1867: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1868: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1869: my $duedate_text = &mt('Due date: [_1]'
1870: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1871: my $temp_file;
1872: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1873:
1874: # Figure out what the last printed due date is or set it
1875: # to the epoch if no duedates have been printed.
1876:
1877: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1878: if (-e $filename) {
1879: $temp_file = Apache::File->new($filename);
1880: my @due_file = <$temp_file>;
1881: $due_file_content = $due_file[$#due_file];
1882: chomp $due_file_content;
1883: }
1884:
1885: # We display the due date iff it is not the same as the last
1886: # duedate in problem header ($due_file_content), and
1887: # none of our parts displayed a duedate.
1888: #
1889: my $parts_with_displayduedate;
1890: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1891: $parts_with_displayduedate =
1892: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1893: } else {
1894: $parts_with_displayduedate = 0;
1895: }
1896: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1897: $temp_file = Apache::File->new('>'.$filename);
1898: print $temp_file "$duetime\n";
1899: if (not $env{'request.symb'} =~ m/\.page_/) {
1900: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1901: $frontmatter .= $begin_doc.
1.448 bisitz 1902: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1903: } else {
1904: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1905: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1906: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1907: }
1.319 foxr 1908: }
1909: } else {
1.448 bisitz 1910: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1911: }
1912: } else {
1913: if (not $env{'request.symb'} =~ m/\.page_/) {
1914: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1915: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1916: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1917: }
1.319 foxr 1918: } else {
1.381 albertel 1919: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1920: }
1921: }
1922: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1923: }
1924:
1.159 albertel 1925: my $status=$Apache::inputtags::status['-1'];
1926: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1927: $target eq 'tex') {
1.249 albertel 1928: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1929: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1930: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1931: &Apache::inputtags::grade;
1.324 albertel 1932: } elsif ($status eq 'NEEDS_CHECKIN') {
1933: # no need to grade, and don't want to hide data
1.249 albertel 1934: } else {
1935: # move any submission data to .hidden
1936: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1937: }
1.159 albertel 1938: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1939: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1940: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1941: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1942: # if part is zero, no <part>s existed, so we need show the current
1943: # grading status
1944: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1945: $result.= $gradestatus;
1946: }
1947: if (
1.284 albertel 1948: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1949: ($target eq 'answer') || ($target eq 'tex')
1950: ) {
1.490 raeburn 1951: if (($target ne 'tex') &&
1952: ($env{'form.answer_output_mode'} ne 'tex') &&
1953: (!$env{'form.grade_imsexport'})) {
1.254 www 1954: $result.="</form>";
1.159 albertel 1955: }
1956: if ($target eq 'web') {
1.507 raeburn 1957: #
1958: # Closing </body></html> not added by end_page().
1959: # Added separately at end of this routine, after added
1960: # <script></script> so document will be valid xhtml.
1961: #
1962: $result.= &Apache::loncommon::end_page({'discussion' => 1,
1963: 'notbody' => 1});
1.159 albertel 1964: } elsif ($target eq 'tex') {
1.178 sakharuk 1965: my $endminipage = '';
1.284 albertel 1966: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1967: $endminipage = '\end{minipage}';
1968: }
1.284 albertel 1969: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1970: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1971: } else {
1.262 sakharuk 1972: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1973: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1974: $result .= $endminipage.'\end{document} ';
1975: } else {
1.382 albertel 1976: $result .= $endminipage;
1.262 sakharuk 1977: }
1.159 albertel 1978: }
1979: }
1980: }
1.476 www 1981: if ($target eq 'web') {
1.512.2.21 raeburn 1982: $result.=&Apache::functionplotresponse::init_script();
1983: if ($Apache::lonhomework::default_type eq 'randomizetry') {
1984: my ($symb) = &Apache::lonnet::whichuser();
1985: if ((($env{'request.state'} eq 'construct') || ($symb eq '')) &&
1986: ($status eq 'CAN_ANSWER')) {
1987: unless (@Apache::inputtags::partlist > 1) {
1988: $result.= <<"ENDJS";
1989: <script type="text/javascript">
1990: // <![CDATA[
1991: \$(document).ready(function() {
1992: \$('#LC_randomizetry_header').css('display','block');
1993: });
1994: // ]]>
1995: </script>
1996: ENDJS
1997: }
1998: }
1999: }
1.476 www 2000: }
1.159 albertel 2001: if ($target eq 'grade') {
2002: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
2003: &finalize_storage();
2004: }
1.284 albertel 2005: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
2006: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 2007: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 2008: # normally we get it from above, but in CSTR
1.172 albertel 2009: # we always show answer mode too.
1.159 albertel 2010: }
2011: } elsif ($target eq 'meta') {
2012: if ($Apache::inputtags::part eq '0') {
1.179 albertel 2013: @Apache::inputtags::response=();
1.159 albertel 2014: $result=&Apache::response::mandatory_part_meta;
2015: }
1.215 albertel 2016: $result.=&Apache::response::meta_part_order();
1.258 albertel 2017: $result.=&Apache::response::meta_response_order();
1.159 albertel 2018: } elsif ($target eq 'edit') {
2019: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 2020: $result .= &problem_edit_footer();
1.320 albertel 2021: } elsif ($target eq 'modified') {
2022: $result .= $token->[2];
1.159 albertel 2023: }
1.155 albertel 2024:
1.284 albertel 2025: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 2026: &Apache::inputtags::check_for_duplicate_ids();
2027: }
1.204 albertel 2028:
2029: &reset_problem_globals('problem');
1.159 albertel 2030:
1.502 foxr 2031: #
2032: # This shouild be just above the return so that the
2033: # time put in the javascript is as late as possible in the
2034: # computation:
2035: #
2036: if ($target eq 'web') {
2037: $result .= &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 2038: #
2039: # Closing tags delayed so any <script></script> tags
2040: # not in head can appear inside body, for valid xhtml.
2041: #
2042: $result .= "</body>\n</html>";
1.502 foxr 2043: }
1.159 albertel 2044: return $result;
1.48 albertel 2045: }
2046:
1.108 albertel 2047:
1.48 albertel 2048: sub start_library {
1.159 albertel 2049: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 2050: my ($result,$form_tag_start);
1.371 albertel 2051: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 2052: &init_problem_globals('library');
2053: $Apache::lonhomework::type='problem';
2054: }
1.159 albertel 2055: if ($target eq 'edit') {
1.343 albertel 2056: ($result,$form_tag_start)=
2057: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2058: 'Edit');
2059: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 2060: my $temp=&Apache::edit::insertlist($target,$token);
2061: $result.=$temp;
2062: } elsif ($target eq 'modified') {
2063: $result=$token->[4];
1.340 albertel 2064: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 2065: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 2066: && $env{'request.state'} eq "construct" ) {
1.159 albertel 2067: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 2068: ($result,$form_tag_start)=
2069: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2070: $name);
1.479 raeburn 2071: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 2072: $result.=" \n $form_tag_start".
1.159 albertel 2073: '<input type="hidden" name="submitted" value="yes" />';
2074: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 2075: if ($Apache::lonhomework::type eq 'practice') {
2076: $result.= '<input type="submit" name="resetdata" '.
2077: 'value="'.&mt('New Problem Variation').'" />'.
2078: &practice_problem_header().'<hr />';
2079: }
1.159 albertel 2080: }
2081: return $result;
1.48 albertel 2082: }
2083:
2084: sub end_library {
1.159 albertel 2085: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2086: my $result='';
2087: if ($target eq 'edit') {
2088: $result=&problem_edit_footer();
1.371 albertel 2089: } elsif ($target eq 'web'
2090: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
2091: && $env{'request.state'} eq "construct") {
1.349 albertel 2092: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.512.2.15 raeburn 2093: } elsif ($target eq 'meta') {
2094: $result.=&Apache::response::meta_response_order();
1.159 albertel 2095: }
1.371 albertel 2096: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
2097: &reset_problem_globals('library');
2098: }
1.159 albertel 2099: return $result;
1.197 www 2100: }
2101:
2102: sub start_definetag {
1.326 albertel 2103: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 2104:
2105: my $result;
2106:
2107: my $name = $token->[2]->{'name'};
1.326 albertel 2108: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 2109: if ($target eq 'web') {
2110: if ($name=~/^\//) {
2111: $result=
2112: '<br /><table class="LC_sty_end"><tr><th>'.
2113: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2114: } else {
2115: $result=
2116: '<br /><table class="LC_sty_begin"><tr><th>'.
2117: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2118: }
2119: $skip = &HTML::Entities::encode($skip, '<>&"');
2120: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 2121: }
2122: return $result;
2123: }
2124:
2125: sub end_definetag {
2126: return '';
1.1 albertel 2127: }
2128:
2129: sub start_block {
1.201 albertel 2130: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 2131:
2132: my $result;
1.1 albertel 2133:
1.339 albertel 2134: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2135: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 2136: my $code = $token->[2]->{'condition'};
1.385 albertel 2137: if (defined($code) && $code ne '') {
1.137 albertel 2138: if (!$Apache::lonxml::default_homework_loaded) {
2139: &Apache::lonxml::default_homework_load($safeeval);
2140: }
1.131 albertel 2141: $result = &Apache::run::run($code,$safeeval);
2142: &Apache::lonxml::debug("block :$code: returned :$result:");
2143: } else {
2144: $result='1';
2145: }
2146: if ( ! $result ) {
1.201 albertel 2147: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 2148: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2149: }
2150: $result='';
2151: } elsif ($target eq 'edit') {
2152: $result .=&Apache::edit::tag_start($target,$token);
2153: $result .=&Apache::edit::text_arg('Test Condition:','condition',
2154: $token,40);
2155: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2156: } elsif ($target eq 'modified') {
2157: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2158: $safeeval,'condition');
2159: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 2160: }
1.131 albertel 2161: return $result;
1.1 albertel 2162: }
2163:
2164: sub end_block {
1.167 www 2165: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2166: my $result;
2167: if ($target eq "edit") {
2168: $result.= &Apache::edit::tag_end($target,$token,'');
2169: }
2170: return $result;
2171: }
1.500 foxr 2172: #
2173: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
2174: # ...
2175: # </languageblock>
2176: #
2177: # This declares the intent to provide content that can be rendered in the
2178: # set of languages in the include specificatino but not in the exclude
2179: # specification. If a currently preferred language is in the include list
2180: # the content in the <languageblock>...</languageblock> is rendered
2181: # If the currently preferred language is in the exclude list,
2182: # the content in the <languageblock>..></languageblock is not rendered.
2183: #
2184: # Pathalogical case handling:
2185: # - Include specified, without the preferred language but exclude specified
2186: # also without the preferred langauge results in rendering the block.
2187: # - Exclude specified without include and excluden not containing a
2188: # preferred language renders the block.
2189: # - Include and exclude both specifying the preferred language does not
2190: # render the block.
2191: # - If neither include/exclude is specified, the block gets rendered.
2192: #
2193: # This tag has no effect when target is in {edit, modified}
2194: #
1.167 www 2195: sub start_languageblock {
1.201 albertel 2196: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 2197:
1.500 foxr 2198: my $result = '';
1.167 www 2199:
1.339 albertel 2200: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2201: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 2202: my $include = $token->[2]->{'include'};
2203: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 2204: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 2205:
2206: # This should not even happen, since we should at least have the server language
2207:
2208: if (!$preferred_languages[0]) {
2209: $preferred_languages[0]='en';
2210: }
2211:
2212: # Now loop over all languages in order of preference
2213:
2214: my $render;
1.398 www 2215: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 2216:
2217: # If neither include/nor exlude is present the block is going
2218: # to get rendered.
2219:
1.399 www 2220: my $found=0;
1.500 foxr 2221: $render=1;
2222:
2223: # If include is specified, don't render the block
2224: # unless the preferred language is included in the set.
2225:
1.398 www 2226: if ($include) {
1.500 foxr 2227: $render=0;
1.398 www 2228: foreach my $included_language (split(/\,/,$include)) {
2229: if ($included_language eq $preferred_language) {
1.500 foxr 2230: $render=1;
1.399 www 2231: $found=1;
1.500 foxr 2232: last; # Only need to find the first.
1.398 www 2233: }
2234: }
2235: }
1.500 foxr 2236: # Do we have an exclude argument?
2237: # If so, and one of the languages matches a preferred language
2238: # inhibit rendering the block. Note that in the pathalogical case the
2239: # author has specified a preferred language in both the include and exclude
2240: # attribte exclude is preferred.
2241:
1.398 www 2242: if ($exclude) {
1.500 foxr 2243: $render=1;
1.398 www 2244: foreach my $excluded_language (split(/\,/,$exclude)) {
2245: if ($excluded_language eq $preferred_language) {
1.500 foxr 2246: $render=0;
1.399 www 2247: $found=1;
1.500 foxr 2248: last; # Only need to find the first.
1.398 www 2249: }
2250: }
2251: }
1.500 foxr 2252: if ($found) {
2253: last; # Done on any match of include or exclude.
2254: }
1.398 www 2255: }
1.500 foxr 2256: # If $render not true skip the entire block until </languageblock>
2257: #
2258:
2259: if ( ! $render ) {
1.201 albertel 2260: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
2261: $style);
2262: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2263: }
1.500 foxr 2264: # If $render is true, we've not skipped the contents of the <languageglock>
2265: # and the normal loncapa processing flow will render it as a matter of course.
2266:
1.167 www 2267: } elsif ($target eq 'edit') {
2268: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2269: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 2270: $token,40);
1.211 albertel 2271: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 2272: $token,40);
2273: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2274: } elsif ($target eq 'modified') {
2275: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 2276: $safeeval,'include',
2277: 'exclude');
1.167 www 2278: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2279: }
2280: return $result;
2281: }
2282:
2283: sub end_languageblock {
1.170 www 2284: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2285: my $result;
1.201 albertel 2286: if ($target eq "edit") {
1.170 www 2287: $result.= &Apache::edit::tag_end($target,$token,'');
2288: }
2289: return $result;
2290: }
1.500 foxr 2291: # languagblock specific tags:
2292: {
2293: # For chunks of a resource that has translations, this hash contains
2294: # the translations available indexed by language name.
2295: #
2296:
2297: my %available_texts;
1.170 www 2298:
1.500 foxr 2299: # <translated> starts a block of a resource that has multiple translations.
2300: # See the <lang> tag as well.
2301: # When </translated> is encountered if there is a translation for the
2302: # currently preferred language, that is rendered inthe web/tex/webgrade
2303: # targets. Otherwise, the default text is rendered.
2304: #
2305: # Note that <lang> is only registered for the duration of the
2306: # <translated>...</translated> block
2307: #
2308: # Pathalogical case handling:
2309: # - If there is no <lang> that specifies a 'default' and there is no
2310: # translation that matches a preferred language, nothing is rendered.
2311: # - Nested <translated>...</translated> might be linguistically supported by
2312: # XML due to the stack nature of tag registration(?) however the rendered
2313: # output will be incorrect because there is only one %available_texts
2314: # has and end_translated clears it.
2315: # - Material outside of a <lang>...</lang> block within the
2316: # <translated>...<translated> block won't render either e.g.:
2317: # <translated>
2318: # The following will be in your preferred langauge:
2319: # <lang which='en'>
2320: # This section in english
2321: # </lang>
2322: # <lang which='sgeiso'>
2323: # Hier es ist auf Deutsch.
2324: # </lang>
2325: # <lang which='sfriso'>
2326: # En Francais
2327: # </lang>
2328: # </translated>
2329: #
2330: # The introductory text prior to the first <lang> tag is not rendered.
2331: #
1.397 albertel 2332: sub start_translated {
2333: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2334: &Apache::lonxml::register('Apache::structuretags',('lang'));
2335: undef(%available_texts);
2336: }
2337:
2338: sub end_translated {
2339: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2340: my $result;
2341: #show the translation on viewable targets
2342: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
2343: # or non-viewable targets, if it's embedded in something that
2344: # wants the output
2345: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
2346: && &Apache::lonxml::in_redirection() ) ) {
2347: my @possibilities = keys(%available_texts);
2348: my $which =
2349: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 2350: if ($target eq 'tex') {
2351: $result = &select_hyphenation($which);
2352: }
2353: $result .= $available_texts{$which};
2354: if ($target eq 'tex') {
2355: $result .= &select_metadata_hyphenation(); # Restore original language.
2356: }
1.397 albertel 2357: }
2358: undef(%available_texts);
2359: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
2360: return $result;
2361: }
2362:
1.500 foxr 2363: # <lang [which='language-name'] [other='lang1,lang2...']>
2364: # Specifies that the block contained within it is a translation
2365: # for a specific language specified by the 'which' attribute. The
2366: # 'other' attribute can be used by itself or in conjunction with
2367: # which to specify this tag _may_ be used as a translation for some
2368: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
2369: # specifying that the block provides a translation for US (primary)
2370: # Canadian, Australian and UK Englush.
2371: #
2372: # Comment: this seems a bit silly why not just support a list of languages
2373: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
2374: #
2375: # Effect:
2376: # The material within the <lang>..</lang> block is stored in the
2377: # specified set of $available_texts hash entries, the appropriate one
2378: # is selected at </translated> time.
2379: #
2380: # Pathalogical case handling:
2381: # If a language occurs multiple times within a <translated> block,
2382: # only the last one is rendered e.g.:
2383: #
2384: # <translated>
2385: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
2386: # Red green color blindness is quite common affecting about 7.8% of
2387: # the male population, but onloy about .65% of the female population.
2388: # </lang>
2389: # Red green colour blindness is quite common affecting about 7.8% of
2390: # the male population, but onloy about .65% of the female population.
2391: # <lang which='seniso', other='senisoCA,senisoAU'>
2392: # </translated>
2393: #
2394: # renders the correct spelling of color (colour) for people who have specified
2395: # a preferred language that is one of the British Commonwealth languages
2396: # even though those are also listed as valid selections for the US english
2397: # <lang> block.
2398: #
1.397 albertel 2399: sub start_lang {
2400: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2401: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2402: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2403: &Apache::lonxml::startredirection();
2404: }
2405: return '';
2406: }
2407:
2408: sub end_lang {
2409: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2410: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2411: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2412: my $result = &Apache::lonxml::endredirection();
2413: my $which = &Apache::lonxml::get_param('which',$parstack,
2414: $safeeval);
1.431 raeburn 2415: if ($which=~/\w/) {
2416: $available_texts{$which} = $result;
2417: }
2418: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
2419: $safeeval);
2420: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
2421: if ($language=~/\w/) {
2422: $available_texts{$language} = $result;
2423: }
1.427 bisitz 2424: }
2425:
1.397 albertel 2426: }
2427: return '';
2428: }
1.500 foxr 2429: } # end langauge block specific tags.
2430:
1.397 albertel 2431:
1.170 www 2432: sub start_instructorcomment {
1.201 albertel 2433: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 2434:
2435: my $result;
2436:
1.339 albertel 2437: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2438: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 2439: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 2440: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 2441: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
2442: $parser,$style);
1.170 www 2443: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2444: }
2445: $result='';
2446: } elsif ($target eq 'edit') {
2447: $result .=&Apache::edit::tag_start($target,$token);
2448: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2449: }
2450: return $result;
2451: }
2452:
2453: sub end_instructorcomment {
1.159 albertel 2454: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2455: my $result;
2456: if ($target eq "edit") {
2457: $result.= &Apache::edit::tag_end($target,$token,'');
2458: }
2459: return $result;
1.4 tsai 2460: }
2461:
2462: sub start_while {
1.326 albertel 2463: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2464:
1.160 albertel 2465: my $result;
1.339 albertel 2466: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2467: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2468: my $code = $token->[2]->{'condition'};
1.4 tsai 2469:
1.160 albertel 2470: push( @Apache::structuretags::whileconds, $code);
2471: if (!$Apache::lonxml::default_homework_loaded) {
2472: &Apache::lonxml::default_homework_load($safeeval);
2473: }
2474: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2475: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2476: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2477: push( @Apache::structuretags::whileline, $token->[5]);
2478: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2479: if ( $result ) {
2480: &Apache::lonxml::newparser($parser,\$bodytext);
2481: }
2482: } elsif ($target eq 'edit') {
2483: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2484: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2485: $token,40);
2486: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2487: } elsif ($target eq 'modified') {
2488: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2489: $safeeval,'condition');
2490: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2491: }
1.160 albertel 2492: return $result;
1.4 tsai 2493: }
2494:
2495: sub end_while {
1.159 albertel 2496: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2497: my $result;
2498:
1.339 albertel 2499: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2500: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2501: my $code = pop(@Apache::structuretags::whileconds);
2502: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2503: my $line = pop(@Apache::structuretags::whileline);
2504: my $return = &Apache::run::run($code,$safeeval);
2505: my $starttime=time;
2506: my $error=0;
2507: while ($return) {
2508: if (time-$starttime >
2509: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2510: $return = 0; $error=1; next;
1.161 albertel 2511: }
2512: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2513: if ($target eq 'grade' || $target eq 'answer' ||
2514: $target eq 'analyze') {
2515: # grade/answer/analyze should produce no output but if we
2516: # are redirecting, the redirecter should know what to do
2517: # with the output
2518: if (!$Apache::lonxml::redirection) { undef($result); }
2519: }
1.161 albertel 2520: $return = &Apache::run::run($code,$safeeval);
2521: }
1.512.2.5 raeburn 2522: if ($error) {
2523: &Apache::lonxml::error(
2524: '<pre>'
2525: .&mt('Code ran too long. It ran for more than [_1] seconds.',
2526: $Apache::lonnet::perlvar{'lonScriptTimeout'})
2527: .&mt('This occurred while running <while> on line [_1].',
2528: $line)
2529: .'</pre>');
2530: }
1.160 albertel 2531: } elsif ($target eq "edit") {
2532: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2533: }
1.160 albertel 2534: return $result;
1.1 albertel 2535: }
1.6 tsai 2536:
1.160 albertel 2537: # <randomlist show="1">
1.6 tsai 2538: # <tag1>..</tag1>
2539: # <tag2>..</tag2>
2540: # <tag3>..</tag3>
1.160 albertel 2541: # ...
1.6 tsai 2542: # </randomlist>
2543: sub start_randomlist {
1.326 albertel 2544: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2545: my $result;
1.339 albertel 2546: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2547: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2548: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2549: my $b_parser= HTML::LCParser->new(\$body);
2550: $b_parser->xml_mode(1);
2551: $b_parser->marked_sections(1);
1.159 albertel 2552: my $b_tok;
2553: my @randomlist;
2554: my $list_item;
2555: while($b_tok = $b_parser->get_token() ) {
2556: if($b_tok->[0] eq 'S') { # start tag
2557: # get content of the tag until matching end tag
2558: # get all text upto the matching tag
2559: # and push the content into @randomlist
2560: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2561: $b_parser);
2562: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2563: push(@randomlist,$list_item);
2564: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2565: # $list_item</b>";
2566: }
2567: if($b_tok->[0] eq 'T') { # text
2568: # what to do with text in between tags?
2569: # print "<b>TEXT $b_tok->[1]</b><br />";
2570: }
2571: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2572: # print "<b>END-TAG $b_tok->[1]</b><br />";
2573: # }
2574: }
1.303 albertel 2575: if (@randomlist) {
2576: my @idx_arr = (0 .. $#randomlist);
1.512.2.14 raeburn 2577: if ($env{'form.code_for_randomlist'}) {
2578: &Apache::structuretags::shuffle(\@idx_arr,$target);
2579: undef($env{'form.code_for_randomlist'});
2580: } else {
2581: &Apache::structuretags::shuffle(\@idx_arr);
2582: }
1.303 albertel 2583: my $bodytext = '';
2584: my $show=$#randomlist;
2585: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2586: $showarg--;
2587: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2588: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2589: my @currlist;
2590: my $part = $Apache::inputtags::part;
2591: if ($part ne '') {
2592: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2593: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2594: if (!(grep(/^\Q$part\E$/,@currlist))) {
2595: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2596: }
2597: } else {
2598: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2599: }
2600: }
2601: }
1.512.2.9 raeburn 2602: for my $i (0 .. $show) {
2603: $bodytext .= "$randomlist[ $idx_arr[$i] ]";
1.303 albertel 2604: }
2605: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2606: }
2607: } elsif ($target eq 'edit' ) {
2608: $result .=&Apache::edit::tag_start($target,$token);
2609: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2610: $token,5);
2611: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2612: } elsif ($target eq 'modified' ) {
2613: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2614: $safeeval,'show');
2615: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2616: }
2617: return $result;
1.7 tsai 2618: }
2619:
2620: sub shuffle {
1.512.2.14 raeburn 2621: my ($a,$target) = @_;
1.7 tsai 2622: my $i;
1.303 albertel 2623: if (ref($a) eq 'ARRAY' && @$a) {
1.512.2.14 raeburn 2624: &Apache::response::pushrandomnumber(undef,$target);
1.159 albertel 2625: for($i=@$a;--$i;) {
2626: my $j=int(&Math::Random::random_uniform() * ($i+1));
2627: next if $i == $j;
2628: @$a[$i,$j] = @$a[$j,$i];
2629: }
1.251 albertel 2630: &Apache::response::poprandomnumber();
1.7 tsai 2631: }
1.6 tsai 2632: }
2633:
2634: sub end_randomlist {
1.159 albertel 2635: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2636: my $result;
2637: if ($target eq 'edit' ) {
2638: $result=&Apache::edit::tag_end($target,$token,
2639: 'End Randomly Parsed Block');
2640: }
2641: return $result;
1.6 tsai 2642: }
2643:
1.283 albertel 2644: sub ordered_show_check {
2645: my $last_part=$Apache::inputtags::partlist[-2];
2646: my $in_order=
2647: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2648: my $in_order_show=1;
2649: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2650: $in_order_show=&Apache::response::check_status($last_part);
2651: }
2652: return $in_order_show;
2653: }
2654:
1.469 www 2655:
2656: sub start_startpartmarker {
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 start of a part. Place end marker below 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_startpartmarker {
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: sub start_endpartmarker {
2676: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2677: my $result='';
2678: if ($target eq 'edit') {
2679: $result=&Apache::edit::tag_start($target,$token);
2680: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2681: $result.=&Apache::edit::end_table();
2682:
2683: }
2684: return $result;
2685: }
2686:
2687: sub end_endpartmarker {
2688: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2689: my @result;
2690: if ($target eq 'edit') { $result[1]='no'; }
2691: return @result;
2692: }
2693:
2694:
2695:
2696:
2697:
1.11 albertel 2698: sub start_part {
1.326 albertel 2699: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2700: if (!$Apache::lonxml::metamode) {
2701: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2702: # duedates.
2703: }
1.159 albertel 2704: my $result='';
1.386 albertel 2705: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2706: $Apache::inputtags::part=$id;
1.177 albertel 2707: push(@Apache::inputtags::partlist,$id);
1.512.2.10 raeburn 2708: $Apache::inputtags::leniency='';
1.177 albertel 2709: @Apache::inputtags::response=();
1.159 albertel 2710: @Apache::inputtags::previous=();
2711: @Apache::inputtags::previous_version=();
1.405 albertel 2712: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2713: &Apache::response::reset_params();
2714:
1.159 albertel 2715: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2716: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2717: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.512.2.9 raeburn 2718: if ($Apache::lonhomework::type eq 'randomizetry') {
2719: my $rndseed=&setup_rndseed($safeeval,$target);
2720: if (($target eq 'grade') && &Apache::response::submitted()) {
2721: $Apache::lonhomework::results{"resource.$id.rndseed"}=$rndseed;
2722: }
2723: } elsif (($target eq 'grade') && &Apache::response::submitted()) {
2724: $Apache::lonhomework::results{"resource.$id.rndseed"}=$Apache::lonhomework::rawrndseed;
2725: }
1.283 albertel 2726: my $in_order_show=&ordered_show_check();
1.214 albertel 2727: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2728: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2729: &Apache::run::run($expression,$safeeval);
1.159 albertel 2730:
2731: if ($target eq 'meta') {
1.224 www 2732: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2733: return &Apache::response::mandatory_part_meta.
2734: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2735: } elsif ($target eq 'web' || $target eq 'grade' ||
2736: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2737: if ($hidden || !$in_order_show) {
1.326 albertel 2738: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2739: } else {
2740: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2741: push (@Apache::inputtags::status,$status);
2742: my $expression='$external::datestatus="'.$status.'";';
2743: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2744: &Apache::run::run($expression,$safeeval);
1.284 albertel 2745: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2746: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2747: }
1.216 albertel 2748: if (( $status eq 'CLOSED' ) ||
2749: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2750: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2751: ( $status eq 'BANNED') ||
2752: ( $status eq 'UNAVAILABLE') ||
2753: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2754: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2755: $style);
1.159 albertel 2756: if ( $target eq "web" ) {
1.211 albertel 2757: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2758: } elsif ( $target eq 'tex' ) {
1.284 albertel 2759: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2760: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2761: } else {
1.211 albertel 2762: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2763: }
1.159 albertel 2764: }
2765: } else {
2766: if ($target eq 'tex') {
1.284 albertel 2767: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2768: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2769: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2770: } else {
2771: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2772: }
1.195 sakharuk 2773: }
1.159 albertel 2774: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2775: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.512.2.9 raeburn 2776: my @allkeys = split(/,/,$allkeys);
1.222 sakharuk 2777: my $allow_print_points = 0;
2778: foreach my $partial_key (@allkeys) {
1.230 albertel 2779: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2780: if ($1 ne '0') {$allow_print_points=1;}
2781: }
2782: }
1.275 albertel 2783: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2784: if (defined($maxtries) && $maxtries < 0) {
2785: $allow_print_points=0;
2786: }
1.302 albertel 2787: if (lc($env{'course.'.$env{'request.course.id'}.
2788: '.disableexampointprint'}) eq 'yes') {
2789: $allow_print_points=0;
2790: }
1.463 foxr 2791: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2792: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2793:
2794: }
1.233 www 2795: } elsif ($target eq 'web') {
1.479 raeburn 2796: if ($status eq 'CAN_ANSWER') {
2797: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2798: my $num = scalar(@Apache::inputtags::partlist)-1;
1.512.2.21 raeburn 2799: if ((($Apache::lonhomework::default_type eq 'randomizetry') ||
2800: ($Apache::lonhomework::randomizetrypart)) &&
2801: ($Apache::lonhomework::type ne 'randomizetry')) {
2802: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2803: } elsif ($Apache::lonhomework::type eq 'randomizetry') {
2804: $Apache::lonhomework::randomizetrypart = 1;
2805: my $reqtries = &Apache::lonnet::EXT("resource.$id.randomizeontries");
1.479 raeburn 2806: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2807: }
2808: }
1.475 raeburn 2809: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2810: }
2811: }
2812: }
2813: } elsif ($target eq 'edit') {
2814: $result.=&Apache::edit::tag_start($target,$token);
2815: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2816: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2817: ' '.
2818: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2819: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2820: } elsif ($target eq 'modified') {
2821: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2822: $safeeval,'id','display');
1.159 albertel 2823: if ($constructtag) {
1.225 albertel 2824: #limiting ids to only letters numbers, and space
1.224 www 2825: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2826: $result = &Apache::edit::rebuild_tag($token);
2827: }
2828: }
2829: return $result;
1.11 albertel 2830: }
2831:
2832: sub end_part {
1.159 albertel 2833: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2834: &Apache::lonxml::debug("in end_part $target ");
2835: my $status=$Apache::inputtags::status['-1'];
2836: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2837: my $in_order_show=&ordered_show_check();
1.321 albertel 2838: my $result;
2839: if (!$Apache::lonxml::metamode) {
2840: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2841: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2842: }
1.312 albertel 2843: if ($target eq 'grade') {
1.249 albertel 2844: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2845: !$hidden && $in_order_show) {
1.311 foxr 2846: $result.=&Apache::inputtags::grade;
1.249 albertel 2847: } else {
2848: # move any submission data to .hidden
2849: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2850: }
1.283 albertel 2851: } elsif (($target eq 'web' || $target eq 'tex') &&
2852: !$hidden && $in_order_show) {
1.159 albertel 2853: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2854: $target);
1.490 raeburn 2855: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2856: ($env{'form.grade_imsexport'})) {
1.212 albertel 2857: $gradestatus='';
2858: }
1.311 foxr 2859: $result.=$gradestatus;
1.265 sakharuk 2860: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2861: } elsif ($target eq 'edit') {
1.311 foxr 2862: $result.=&Apache::edit::end_table();
1.322 albertel 2863: } elsif ($target eq 'modified') {
2864: $result .= $token->[2];
1.159 albertel 2865: }
2866: pop @Apache::inputtags::status;
2867: $Apache::inputtags::part='';
1.512.2.10 raeburn 2868: $Apache::inputtags::leniency='';
1.295 albertel 2869: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2870: return $result;
1.11 albertel 2871: }
1.1 albertel 2872:
1.25 albertel 2873: sub start_preduedate {
1.326 albertel 2874: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2875: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2876: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2877: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2878: if (!$Apache::lonhomework::scantronmode &&
2879: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2880: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2881: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2882: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2883: }
1.24 albertel 2884: }
1.159 albertel 2885: return '';
1.24 albertel 2886: }
2887:
1.25 albertel 2888: sub end_preduedate {
1.159 albertel 2889: return '';
1.24 albertel 2890: }
2891:
1.369 foxr 2892: # In all the modes where <postanswerdate> text is
2893: # displayable, all we do is eat up the text between the start/stop
2894: # tags if the conditions are not right to display it.
1.25 albertel 2895: sub start_postanswerdate {
1.326 albertel 2896: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2897: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2898: &Apache::lonnet::allowed('pav',
2899: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2900: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2901: $target eq 'tex' ) {
1.300 albertel 2902: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2903: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2904: (($target eq 'tex') && !$pav)) {
1.326 albertel 2905: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2906: }
2907: }
2908: return '';
1.24 albertel 2909: }
2910:
1.25 albertel 2911: sub end_postanswerdate {
1.159 albertel 2912: return '';
1.24 albertel 2913: }
2914:
1.25 albertel 2915: sub start_notsolved {
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' ||
1.339 albertel 2918: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2919: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2920: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2921: if ($gradestatus =~ /^correct/ &&
2922: &Apache::response::show_answer()) {
1.159 albertel 2923: &Apache::lonxml::debug("skipping");
1.326 albertel 2924: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2925: }
1.24 albertel 2926: }
1.159 albertel 2927: return '';
1.24 albertel 2928: }
2929:
1.25 albertel 2930: sub end_notsolved {
1.159 albertel 2931: return '';
1.24 albertel 2932: }
2933:
2934: sub start_solved {
1.326 albertel 2935: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2936: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2937: $target eq 'tex') {
2938: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2939: if ($gradestatus !~ /^correct/ ||
2940: !&Apache::response::show_answer()) {
1.326 albertel 2941: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2942: }
1.24 albertel 2943: }
1.159 albertel 2944: return '';
1.24 albertel 2945: }
2946:
2947: sub end_solved {
1.248 albertel 2948: return '';
2949: }
2950:
2951: sub start_problemtype {
1.326 albertel 2952: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2953: my $result;
1.339 albertel 2954: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2955: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2956: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2957: if (!defined($mode)) { $mode='show'; }
2958: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2959: my $found=0;
2960: foreach my $type (split(',',$for)) {
2961: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2962: }
2963: if ($mode eq 'show' && !$found) {
1.326 albertel 2964: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2965: }
2966: if ($mode eq 'hide' && $found) {
1.326 albertel 2967: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2968: }
2969: } elsif ($target eq 'edit') {
2970: $result .=&Apache::edit::tag_start($target,$token);
2971: $result.=&Apache::edit::select_arg('Mode:','mode',
2972: [['show','Show'],
2973: ['hide','Hide']]
2974: ,$token);
2975: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.512.2.2 raeburn 2976: [ ['exam','Exam/Quiz Problem'],
1.248 albertel 2977: ['survey','Survey'],
1.465 raeburn 2978: ['surveycred','Survey (with credit)'],
2979: ['anonsurvey','Anonymous Survey'],
2980: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2981: ['problem','Homework Problem'],
1.479 raeburn 2982: ['practice','Practice Problem'],
2983: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2984: ,$token);
2985: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2986: } elsif ($target eq 'modified') {
2987: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2988: $safeeval,'mode','for');
2989: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2990: }
2991: return $result;
2992: }
2993:
2994: sub end_problemtype {
1.159 albertel 2995: return '';
1.24 albertel 2996: }
1.34 albertel 2997:
2998: sub start_startouttext {
1.159 albertel 2999: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3000: my @result=(''.'');
3001: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 3002:
3003: my $nesting =
3004: &Apache::lonxml::set_state('outtext',
3005: &Apache::lonxml::get_state('outtext')+1);
3006: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
3007: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
3008: }
1.159 albertel 3009: return (@result);
1.34 albertel 3010: }
1.159 albertel 3011:
1.34 albertel 3012: sub end_startouttext {
1.326 albertel 3013: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 3014: my $result='';
3015: my $text='';
3016: if ($target eq 'edit') {
1.424 foxr 3017: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 3018: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.512.2.11 raeburn 3019: $result.=&Apache::edit::start_table($token)."<tr><td>".&Apache::loncommon::insert_folding_button()
3020: ." ".&mt('Text Block')."</td>"
1.438 bisitz 3021: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 3022: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 3023: .'</span></td>'
1.512.2.12 raeburn 3024: .'<td><span id="math_'.$areaid.'">';
3025: if ($env{'environment.nocodemirror'}) {
3026: $result.=&Apache::lonhtmlcommon::dragmath_button($areaid,1);
3027: } else {
3028: $result.=' ';
3029: }
3030: $result.='</span></td>'
1.474 raeburn 3031: .'<td>'
3032: .&Apache::edit::insertlist($target,$token)
3033: .'</td>'
1.512.2.5 raeburn 3034: .'<td class="LC_edit_problem_latexhelper">' .
1.474 raeburn 3035: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 3036: &Apache::edit::end_row().
1.362 albertel 3037: &Apache::edit::start_spanning_row()."\n".
1.255 www 3038: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 3039: }
3040: if ($target eq 'modified') {
1.219 albertel 3041: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 3042: }
3043: if ($target eq 'tex') {
3044: $result .= '\noindent ';
3045: }
3046: return $result;
1.34 albertel 3047: }
1.159 albertel 3048:
1.34 albertel 3049: sub start_endouttext {
1.159 albertel 3050: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3051: my $result='';
3052: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
3053: if ($target eq "modified") {
3054: $result='<endouttext />'.
1.377 albertel 3055: &Apache::edit::handle_insertafter('startouttext');
3056: }
1.404 albertel 3057:
3058: my $nesting =
3059: &Apache::lonxml::set_state('outtext',
3060: &Apache::lonxml::get_state('outtext')-1);
3061: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
3062: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
3063: &Apache::lonxml::set_state('outtext', 0);
3064: }
1.159 albertel 3065: return $result;
1.34 albertel 3066: }
1.159 albertel 3067:
1.34 albertel 3068: sub end_endouttext {
1.159 albertel 3069: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3070: my @result=('','');
3071: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
3072: return (@result);
1.34 albertel 3073: }
1.159 albertel 3074:
1.45 albertel 3075: sub delete_startouttext {
1.326 albertel 3076: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
3077: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 3078: my $text=$$parser['-1']->get_text("/endouttext");
3079: my $ntoken=$$parser['-1']->get_token();
3080: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
3081: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
3082: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
3083: # they did the last time round
3084: &Apache::lonxml::increasedepth($ntoken);
3085: &Apache::lonxml::decreasedepth($ntoken);
3086: return 1;
1.193 www 3087: }
3088:
3089: sub start_simpleeditbutton {
3090: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3091: my $result='';
1.284 albertel 3092: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 3093: ($target eq 'web') &&
1.330 albertel 3094: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 3095: my $url=$env{'request.noversionuri'};
1.193 www 3096: $url=~s/\?.*$//;
1.367 albertel 3097: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 3098: # Warning makes more sense and is more important on edit screen
1.442 bisitz 3099: # $result='<p class="LC_warning">'
3100: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
3101: # .&Apache::loncommon::help_open_topic('Caching')
3102: # .'</p>';
1.486 www 3103: $result.=&Apache::loncommon::head_subbox(
3104: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 3105: .&Apache::lonhtmlcommon::add_item_funclist(
3106: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
3107: .&mt('Edit').'</a>')
1.486 www 3108: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 3109:
1.193 www 3110: }
3111: return $result;
3112: }
3113:
3114: sub end_simpleeditbutton {
3115: return '';
1.45 albertel 3116: }
1.34 albertel 3117:
1.428 raeburn 3118: sub practice_problem_header {
3119: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
3120: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
3121: '</span>';
3122: }
3123:
1.479 raeburn 3124: sub randomizetry_problem_header {
1.512.2.21 raeburn 3125: my ($problemstatus,$reqtries,$symb) = @_;
1.479 raeburn 3126: my ($header,$text);
3127: if ($reqtries > 1) {
3128: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
3129: if (($problemstatus eq 'no') ||
3130: ($problemstatus eq 'no_feedback_ever')) {
3131: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3132: } else {
3133: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3134: }
3135: } else {
3136: $header = &mt('New Problem Variation Each Try');
3137: if (($problemstatus eq 'no') ||
3138: ($problemstatus eq 'no_feedback_ever')) {
3139: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
3140:
3141: } else {
3142: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
3143: }
3144: }
1.512.2.21 raeburn 3145: if (($env{'request.state'} eq "construct") || ($symb eq '')) {
3146: return '<div class="LC_info" id="LC_randomizetry_header" style="display:none">'.
3147: '<h3>'.$header.'</h3><span class="LC_info">'.$text.'</span><hr /></div>';
3148: } else {
3149: return '<h3 class="LC_info">'.$header.'</h3>'.
3150: '<span class="LC_info">'.$text.'</span><hr />';
3151: }
1.479 raeburn 3152: }
3153:
3154: sub randomizetry_part_header {
3155: my ($problemstatus,$reqtries,$num) = @_;
3156: my ($header,$text);
3157: if ($reqtries eq 'none') {
3158: $header = &mt('No Question Variation');
1.512.2.23 raeburn 3159: $text = &mt('For this question there will be no new variation after a try.');
1.479 raeburn 3160: } elsif ($reqtries > 1) {
3161: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
3162: if (($problemstatus eq 'no') ||
3163: ($problemstatus eq 'no_feedback_ever')) {
3164: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3165: } else {
3166: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3167: }
3168: } else {
3169: $header = &mt('New Question Variation For Each Try');
3170: if (($problemstatus eq 'no') ||
3171: ($problemstatus eq 'no_feedback_ever')) {
3172: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
3173: } else {
3174: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
3175: }
3176: }
3177: my $output;
3178: if ($num > 1) {
3179: $output .= '<hr />';
3180: }
3181: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
3182: '<span class="LC_info">'.$text.'</span><br /><br />';
3183: return $output;
3184: }
3185:
1.1 albertel 3186: 1;
3187: __END__
1.435 jms 3188:
3189: =pod
3190:
3191: =back
3192:
3193: =cut
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