Annotation of loncom/homework/structuretags.pm, revision 1.512.2.23.2.2
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.512.2.23.2. (raeburn 4:): # $Id: structuretags.pm,v 1.512.2.23.2.1 2020/01/15 13:57:36 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 );
1.512.2.23.2. (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?');
1.512.2.23.2. (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" />
1.512.2.23.2. (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");
1.512.2.23.2. (raeburn 1562:): my ($timelimit) = ($interval[0] =~ /^(\d+)/);
1563:): my $is_set = &Apache::lonnet::set_first_access($interval[1],$timelimit);
1.512.2.16 raeburn 1564: unless (($is_set eq 'ok') || ($is_set eq 'already_set')) {
1565: $firstaccres = $is_set;
1566: }
1.506 raeburn 1567: }
1568:
1569: ($status,$accessmsg,$slot_name,$slot) =
1570: &Apache::lonhomework::check_slot_access('0','problem');
1571: push (@Apache::inputtags::status,$status);
1572: }
1573:
1.354 albertel 1574: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1575: || $target eq 'edit') {
1.512.2.9 raeburn 1576: ($result,$form_tag_start,$probpartlist) =
1.350 albertel 1577: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1578: $name);
1.512.2.9 raeburn 1579: } elsif (($target eq 'grade') && ($Apache::lonhomework::type eq 'randomizetry')) {
1580: my ($symb)= &Apache::lonnet::whichuser();
1.512.2.22 raeburn 1581: if ($symb ne '') {
1582: my $navmap = Apache::lonnavmaps::navmap->new();
1583: if (ref($navmap)) {
1584: my $res = $navmap->getBySymb($symb);
1585: if (ref($res)) {
1586: $probpartlist = $res->parts();
1587: }
1.512.2.9 raeburn 1588: }
1589: }
1.350 albertel 1590: }
1591:
1.284 albertel 1592: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1593:
1.479 raeburn 1594: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1595: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1596: $target eq 'tex') {
1.479 raeburn 1597:
1.512.2.22 raeburn 1598: my ($symb) = &Apache::lonnet::whichuser();
1.159 albertel 1599: #handle rand seed in construction space
1.512.2.22 raeburn 1600: if (($env{'request.state'} eq 'construct') || ($symb eq '')) {
1601: my $partorder=&Apache::lonnet::metadata($env{'request.uri'},'partorder');
1602: if ($partorder ne '') {
1603: @{$probpartlist} = split(/,/,$partorder);
1604: }
1605: }
1.512.2.9 raeburn 1606: my $rndseed=&setup_rndseed($safeeval,$target,$probpartlist);
1607: if (($target eq 'grade') && &Apache::response::submitted()) {
1608: if ($Apache::lonhomework::type eq 'randomizetry') {
1609: $Apache::lonhomework::results{'resource.0.rndseed'}=$rndseed;
1610: } else {
1611: my @parts;
1612: if (ref($probpartlist) eq 'ARRAY') {
1613: @parts = @{$probpartlist};
1614: }
1615: unless (@parts) {
1616: $Apache::lonhomework::results{'resource.0.rndseed'}=$Apache::lonhomework::rawrndseed;
1617: }
1618: }
1619: }
1.479 raeburn 1620:
1.333 albertel 1621: if ($env{'request.state'} ne "construct" &&
1622: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.512.2.20 raeburn 1623: my $rndseedval = $rndseed;
1624: if (($symb eq '') && ($Apache::lonhomework::type eq 'randomizetry')) {
1625: $rndseedval = $env{'form.rndseed'};
1626: }
1.162 albertel 1627: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.512.2.20 raeburn 1628: $rndseedval.'" />'.
1.462 raeburn 1629: '<input type="submit" name="resetdata"
1630: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1631: if (exists($env{'form.username'})) {
1632: $form_tag_start.=
1.164 albertel 1633: '<input type="hidden" name="username"
1.284 albertel 1634: value="'.$env{'form.username'}.'" />';
1.334 albertel 1635: }
1.462 raeburn 1636: if ($env{'request.role.adv'}) {
1637: $form_tag_start.= ' <label class="LC_nobreak">'
1638: .'<input type="checkbox" name="showallfoils"';
1639: if (defined($env{'form.showallfoils'})) {
1640: $form_tag_start.=' checked="checked"';
1641: }
1642: $form_tag_start.= ' /> '
1643: .&mt('Show All Foils')
1644: .'</label>';
1645: }
1.417 www 1646: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1647: $form_tag_start.=&practice_problem_header();
1.417 www 1648: }
1.462 raeburn 1649: $form_tag_start.='<hr />';
1.512.2.20 raeburn 1650: }
1651: if (($env{'request.state'} ne "construct") &&
1652: ($Apache::lonhomework::type eq 'randomizetry') &&
1653: ($status eq 'CAN_ANSWER')) {
1.512.2.21 raeburn 1654: my @parts;
1655: if (ref($probpartlist) eq 'ARRAY') {
1656: @parts = @{$probpartlist};
1657: }
1658: unless (@parts) {
1659: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1660: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1661: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries,$symb);
1662: }
1.479 raeburn 1663: }
1.324 albertel 1664:
1.159 albertel 1665: my $expression='$external::datestatus="'.$status.'";';
1666: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1667: &Apache::run::run($expression,$safeeval);
1668: &Apache::lonxml::debug("Got $status");
1.324 albertel 1669:
1.159 albertel 1670: if (( $status eq 'CLOSED' ) ||
1671: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1672: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1673: ( $status eq 'BANNED') ||
1.216 albertel 1674: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1675: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1676: ( $status eq 'NOTRESERVABLE') ||
1677: ( $status eq 'RESERVABLE') ||
1678: ( $status eq 'RESERVABLE_LATER') ||
1.216 albertel 1679: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1680: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1681: $style);
1.159 albertel 1682: if ( $target eq "web" ) {
1.343 albertel 1683: my $msg;
1.159 albertel 1684: if ($status eq 'UNAVAILABLE') {
1.504 golterma 1685: $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1.441 raeburn 1686: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.504 golterma 1687: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1.499 raeburn 1688: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1689: ($status eq 'NOTRESERVABLE')) {
1.504 golterma 1690: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1.253 albertel 1691: } elsif ($status ne 'NOT_YET_VIEWED') {
1.504 golterma 1692: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1.499 raeburn 1693: }
1.216 albertel 1694: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1695: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1696: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1697: $msg.=&checkout_msg();
1.252 albertel 1698: } elsif ($status eq 'NOT_YET_VIEWED') {
1.512.2.16 raeburn 1699: if ($firstaccres) {
1700: $msg .= '<p class="LC_error">'.
1701: &mt('A problem occurred when trying to start the timer.').'</p>';
1702: }
1.253 albertel 1703: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1704: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1705: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.499 raeburn 1706: } elsif ($status eq 'RESERVABLE') {
1707: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1708: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1709: '<br />'.
1710: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1711: } elsif ($status eq 'RESERVABLE_LATER') {
1712: $msg.=&mt('Window to make a reservation will open [_1].',
1713: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1714: } elsif ($status eq 'NOTRESERVABLE') {
1715: $msg.=&mt('Not available to make a reservation.');
1.159 albertel 1716: }
1717: $result.=$msg.'<br />';
1718: } elsif ($target eq 'tex') {
1.332 albertel 1719: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1720: : '\begin{minipage}{\textwidth}';
1.443 foxr 1721: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1722: $startminipage.'\vskip 0 mm';
1.159 albertel 1723: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1724: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1725: } else {
1.211 albertel 1726: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1727: }
1728: }
1.324 albertel 1729: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1730: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1731: $style);
1.324 albertel 1732: if ($target eq 'web') {
1.375 albertel 1733: $result .=
1734: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1735: } elsif ($target eq 'grade') {
1736: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1737: 'problem');
1738: }
1.159 albertel 1739: } elsif ($target eq 'web') {
1.508 raeburn 1740: if ($status eq 'CAN_ANSWER') {
1741: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1742: if ($slot_name ne '') {
1743: my $checked_in =
1744: $Apache::lonhomework::history{'resource.0.checkedin'};
1745: if ($checked_in eq '') {
1746: # unproctored slot access, self checkin
1747: &Apache::bridgetask::check_in('problem',undef,undef,
1748: $slot_name);
1749: $checked_in =
1750: $Apache::lonhomework::results{"resource.0.checkedin"};
1751: }
1752: if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1753: if ($slot->{'starttime'} < time()) {
1754: if (!$resource_due) {
1755: $resource_due = $slot->{'endtime'};
1756: } elsif ($slot->{'endtime'} < $resource_due) {
1757: $resource_due = $slot->{'endtime'};
1758: }
1759: }
1760: }
1761: }
1762: if ($resource_due) {
1763: my $time_left = $resource_due - time();
1764: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1765: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1766: }
1767: }
1768: }
1.368 albertel 1769: $result.="\n $form_tag_start \t".
1.227 albertel 1770: '<input type="hidden" name="submitted" value="yes" />';
1771: # create a page header and exit
1.284 albertel 1772: if ($env{'request.state'} eq "construct") {
1773: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1774: if ($Apache::lonhomework::type eq 'practice') {
1775: $result.= '<input type="submit" name="resetdata" '.
1776: 'value="'.&mt('New Problem Variation').'" />'.
1777: &practice_problem_header().'<hr />';
1.512.2.19 raeburn 1778: } elsif ($Apache::lonhomework::type eq 'randomizetry') {
1779: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1780: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1781: $result.=&randomizetry_problem_header($problemstatus,$reqtries);
1.428 raeburn 1782: }
1.227 albertel 1783: }
1784: # if we are viewing someone else preserve that info
1.284 albertel 1785: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1786: foreach my $field ('symb','courseid','domain','username') {
1787: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1788: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1789: }
1.479 raeburn 1790: foreach my $field ('trial','questiontype') {
1791: if ($env{"form.grade_$field"} ne '') {
1792: $result .= '<input type="hidden" name="grade_'.$field.
1793: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1794: }
1795: }
1.159 albertel 1796: }
1.490 raeburn 1797: if ($env{'form.grade_imsexport'}) {
1798: $result = '';
1799: }
1.159 albertel 1800: } elsif ($target eq 'tex') {
1.319 foxr 1801: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 1802: $result .= &select_metadata_hyphenation();
1803:
1.319 foxr 1804:
1.99 sakharuk 1805: }
1.159 albertel 1806: } elsif ($target eq 'edit') {
1.343 albertel 1807: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1808: $Apache::lonxml::warnings_error_header=
1809: &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 1810: my $temp=&Apache::edit::insertlist($target,$token);
1811: $result.=$temp;
1812: } elsif ($target eq 'modified') {
1813: $result=$token->[4];
1814: } else {
1815: # page_start returned a starting result, delete it if we don't need it
1816: $result = '';
1.99 sakharuk 1817: }
1.159 albertel 1818: return $result;
1.9 albertel 1819: }
1820:
1821: sub end_problem {
1.159 albertel 1822: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1823: my $result;
1.310 foxr 1824:
1.321 albertel 1825: if (!$Apache::lonxml::metamode) {
1826: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1827: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1828: }
1.319 foxr 1829:
1830: if ($target eq 'tex') {
1.321 albertel 1831: # Figure out the front matter and replace the
1832: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1833: # this in end_problem because whether or not we display due
1834: # dates depends on whether due dates have already been
1835: # displayed in the problem parts.
1836:
1.319 foxr 1837: my $frontmatter = '';
1838: my $startminipage = '';
1839: if (not $env{'form.problem_split'}=~/yes/) {
1840: $startminipage = '\begin{minipage}{\textwidth}';
1841: }
1842: my $id = $Apache::inputtags::part;
1843: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1844: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.512.2.9 raeburn 1845: my @packages = split(/,/,$packages);
1.319 foxr 1846: my $allow_print_points = 0;
1847: foreach my $partial_key (@packages) {
1848: if ($partial_key=~m/^part_0$/) {
1849: $allow_print_points=1;
1850: }
1851: }
1852: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1853: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1854: if (lc($env{'course.'.$env{'request.course.id'}.
1855: '.disableexampointprint'}) eq 'yes') {
1856: $allow_print_points=0;
1857: }
1858: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1859: 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 1860: &clear_required_languages();
1.319 foxr 1861: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1862: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1863:
1864: # Figure out what the due date is and if we need to print
1865: # it in the problem header. We have been logging the
1866: # last due date written to file.
1867:
1868: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1869: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1870: my $duedate_text = &mt('Due date: [_1]'
1871: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1872: my $temp_file;
1873: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1874:
1875: # Figure out what the last printed due date is or set it
1876: # to the epoch if no duedates have been printed.
1877:
1878: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1879: if (-e $filename) {
1880: $temp_file = Apache::File->new($filename);
1881: my @due_file = <$temp_file>;
1882: $due_file_content = $due_file[$#due_file];
1883: chomp $due_file_content;
1884: }
1885:
1886: # We display the due date iff it is not the same as the last
1887: # duedate in problem header ($due_file_content), and
1888: # none of our parts displayed a duedate.
1889: #
1890: my $parts_with_displayduedate;
1891: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1892: $parts_with_displayduedate =
1893: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1894: } else {
1895: $parts_with_displayduedate = 0;
1896: }
1897: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1898: $temp_file = Apache::File->new('>'.$filename);
1899: print $temp_file "$duetime\n";
1900: if (not $env{'request.symb'} =~ m/\.page_/) {
1901: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1902: $frontmatter .= $begin_doc.
1.448 bisitz 1903: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1904: } else {
1905: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1906: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1907: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1908: }
1.319 foxr 1909: }
1910: } else {
1.448 bisitz 1911: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1912: }
1913: } else {
1914: if (not $env{'request.symb'} =~ m/\.page_/) {
1915: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1916: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1917: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1918: }
1.319 foxr 1919: } else {
1.381 albertel 1920: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1921: }
1922: }
1923: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1924: }
1925:
1.159 albertel 1926: my $status=$Apache::inputtags::status['-1'];
1927: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1928: $target eq 'tex') {
1.249 albertel 1929: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1930: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1931: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1932: &Apache::inputtags::grade;
1.324 albertel 1933: } elsif ($status eq 'NEEDS_CHECKIN') {
1934: # no need to grade, and don't want to hide data
1.249 albertel 1935: } else {
1936: # move any submission data to .hidden
1937: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1938: }
1.159 albertel 1939: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1940: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1941: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1942: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1943: # if part is zero, no <part>s existed, so we need show the current
1944: # grading status
1945: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1946: $result.= $gradestatus;
1947: }
1948: if (
1.284 albertel 1949: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1950: ($target eq 'answer') || ($target eq 'tex')
1951: ) {
1.490 raeburn 1952: if (($target ne 'tex') &&
1953: ($env{'form.answer_output_mode'} ne 'tex') &&
1954: (!$env{'form.grade_imsexport'})) {
1.254 www 1955: $result.="</form>";
1.159 albertel 1956: }
1957: if ($target eq 'web') {
1.507 raeburn 1958: #
1959: # Closing </body></html> not added by end_page().
1960: # Added separately at end of this routine, after added
1961: # <script></script> so document will be valid xhtml.
1962: #
1963: $result.= &Apache::loncommon::end_page({'discussion' => 1,
1964: 'notbody' => 1});
1.159 albertel 1965: } elsif ($target eq 'tex') {
1.178 sakharuk 1966: my $endminipage = '';
1.284 albertel 1967: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1968: $endminipage = '\end{minipage}';
1969: }
1.284 albertel 1970: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1971: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1972: } else {
1.262 sakharuk 1973: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1974: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1975: $result .= $endminipage.'\end{document} ';
1976: } else {
1.382 albertel 1977: $result .= $endminipage;
1.262 sakharuk 1978: }
1.159 albertel 1979: }
1980: }
1981: }
1.476 www 1982: if ($target eq 'web') {
1.512.2.21 raeburn 1983: $result.=&Apache::functionplotresponse::init_script();
1984: if ($Apache::lonhomework::default_type eq 'randomizetry') {
1985: my ($symb) = &Apache::lonnet::whichuser();
1986: if ((($env{'request.state'} eq 'construct') || ($symb eq '')) &&
1987: ($status eq 'CAN_ANSWER')) {
1988: unless (@Apache::inputtags::partlist > 1) {
1989: $result.= <<"ENDJS";
1990: <script type="text/javascript">
1991: // <![CDATA[
1992: \$(document).ready(function() {
1993: \$('#LC_randomizetry_header').css('display','block');
1994: });
1995: // ]]>
1996: </script>
1997: ENDJS
1998: }
1999: }
2000: }
1.476 www 2001: }
1.159 albertel 2002: if ($target eq 'grade') {
2003: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
2004: &finalize_storage();
2005: }
1.284 albertel 2006: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
2007: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 2008: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 2009: # normally we get it from above, but in CSTR
1.172 albertel 2010: # we always show answer mode too.
1.159 albertel 2011: }
2012: } elsif ($target eq 'meta') {
2013: if ($Apache::inputtags::part eq '0') {
1.179 albertel 2014: @Apache::inputtags::response=();
1.159 albertel 2015: $result=&Apache::response::mandatory_part_meta;
2016: }
1.215 albertel 2017: $result.=&Apache::response::meta_part_order();
1.258 albertel 2018: $result.=&Apache::response::meta_response_order();
1.159 albertel 2019: } elsif ($target eq 'edit') {
2020: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 2021: $result .= &problem_edit_footer();
1.320 albertel 2022: } elsif ($target eq 'modified') {
2023: $result .= $token->[2];
1.159 albertel 2024: }
1.155 albertel 2025:
1.284 albertel 2026: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 2027: &Apache::inputtags::check_for_duplicate_ids();
2028: }
1.204 albertel 2029:
2030: &reset_problem_globals('problem');
1.159 albertel 2031:
1.502 foxr 2032: #
2033: # This shouild be just above the return so that the
2034: # time put in the javascript is as late as possible in the
2035: # computation:
2036: #
2037: if ($target eq 'web') {
2038: $result .= &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 2039: #
2040: # Closing tags delayed so any <script></script> tags
2041: # not in head can appear inside body, for valid xhtml.
2042: #
2043: $result .= "</body>\n</html>";
1.502 foxr 2044: }
1.159 albertel 2045: return $result;
1.48 albertel 2046: }
2047:
1.108 albertel 2048:
1.48 albertel 2049: sub start_library {
1.159 albertel 2050: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 2051: my ($result,$form_tag_start);
1.371 albertel 2052: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 2053: &init_problem_globals('library');
2054: $Apache::lonhomework::type='problem';
2055: }
1.159 albertel 2056: if ($target eq 'edit') {
1.343 albertel 2057: ($result,$form_tag_start)=
2058: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2059: 'Edit');
2060: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 2061: my $temp=&Apache::edit::insertlist($target,$token);
2062: $result.=$temp;
2063: } elsif ($target eq 'modified') {
2064: $result=$token->[4];
1.340 albertel 2065: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 2066: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 2067: && $env{'request.state'} eq "construct" ) {
1.159 albertel 2068: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 2069: ($result,$form_tag_start)=
2070: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2071: $name);
1.479 raeburn 2072: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 2073: $result.=" \n $form_tag_start".
1.159 albertel 2074: '<input type="hidden" name="submitted" value="yes" />';
2075: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 2076: if ($Apache::lonhomework::type eq 'practice') {
2077: $result.= '<input type="submit" name="resetdata" '.
2078: 'value="'.&mt('New Problem Variation').'" />'.
2079: &practice_problem_header().'<hr />';
2080: }
1.159 albertel 2081: }
2082: return $result;
1.48 albertel 2083: }
2084:
2085: sub end_library {
1.159 albertel 2086: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2087: my $result='';
2088: if ($target eq 'edit') {
2089: $result=&problem_edit_footer();
1.371 albertel 2090: } elsif ($target eq 'web'
2091: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
2092: && $env{'request.state'} eq "construct") {
1.349 albertel 2093: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.512.2.15 raeburn 2094: } elsif ($target eq 'meta') {
2095: $result.=&Apache::response::meta_response_order();
1.159 albertel 2096: }
1.371 albertel 2097: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
2098: &reset_problem_globals('library');
2099: }
1.159 albertel 2100: return $result;
1.197 www 2101: }
2102:
2103: sub start_definetag {
1.326 albertel 2104: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 2105:
2106: my $result;
2107:
2108: my $name = $token->[2]->{'name'};
1.326 albertel 2109: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 2110: if ($target eq 'web') {
2111: if ($name=~/^\//) {
2112: $result=
2113: '<br /><table class="LC_sty_end"><tr><th>'.
2114: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2115: } else {
2116: $result=
2117: '<br /><table class="LC_sty_begin"><tr><th>'.
2118: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2119: }
2120: $skip = &HTML::Entities::encode($skip, '<>&"');
2121: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 2122: }
2123: return $result;
2124: }
2125:
2126: sub end_definetag {
2127: return '';
1.1 albertel 2128: }
2129:
2130: sub start_block {
1.201 albertel 2131: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 2132:
2133: my $result;
1.1 albertel 2134:
1.339 albertel 2135: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2136: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 2137: my $code = $token->[2]->{'condition'};
1.385 albertel 2138: if (defined($code) && $code ne '') {
1.137 albertel 2139: if (!$Apache::lonxml::default_homework_loaded) {
2140: &Apache::lonxml::default_homework_load($safeeval);
2141: }
1.131 albertel 2142: $result = &Apache::run::run($code,$safeeval);
2143: &Apache::lonxml::debug("block :$code: returned :$result:");
2144: } else {
2145: $result='1';
2146: }
2147: if ( ! $result ) {
1.201 albertel 2148: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 2149: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2150: }
2151: $result='';
2152: } elsif ($target eq 'edit') {
2153: $result .=&Apache::edit::tag_start($target,$token);
2154: $result .=&Apache::edit::text_arg('Test Condition:','condition',
2155: $token,40);
2156: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2157: } elsif ($target eq 'modified') {
2158: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2159: $safeeval,'condition');
2160: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 2161: }
1.131 albertel 2162: return $result;
1.1 albertel 2163: }
2164:
2165: sub end_block {
1.167 www 2166: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2167: my $result;
2168: if ($target eq "edit") {
2169: $result.= &Apache::edit::tag_end($target,$token,'');
2170: }
2171: return $result;
2172: }
1.500 foxr 2173: #
2174: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
2175: # ...
2176: # </languageblock>
2177: #
2178: # This declares the intent to provide content that can be rendered in the
2179: # set of languages in the include specificatino but not in the exclude
2180: # specification. If a currently preferred language is in the include list
2181: # the content in the <languageblock>...</languageblock> is rendered
2182: # If the currently preferred language is in the exclude list,
2183: # the content in the <languageblock>..></languageblock is not rendered.
2184: #
2185: # Pathalogical case handling:
2186: # - Include specified, without the preferred language but exclude specified
2187: # also without the preferred langauge results in rendering the block.
2188: # - Exclude specified without include and excluden not containing a
2189: # preferred language renders the block.
2190: # - Include and exclude both specifying the preferred language does not
2191: # render the block.
2192: # - If neither include/exclude is specified, the block gets rendered.
2193: #
2194: # This tag has no effect when target is in {edit, modified}
2195: #
1.167 www 2196: sub start_languageblock {
1.201 albertel 2197: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 2198:
1.500 foxr 2199: my $result = '';
1.167 www 2200:
1.339 albertel 2201: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2202: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 2203: my $include = $token->[2]->{'include'};
2204: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 2205: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 2206:
2207: # This should not even happen, since we should at least have the server language
2208:
2209: if (!$preferred_languages[0]) {
2210: $preferred_languages[0]='en';
2211: }
2212:
2213: # Now loop over all languages in order of preference
2214:
2215: my $render;
1.398 www 2216: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 2217:
2218: # If neither include/nor exlude is present the block is going
2219: # to get rendered.
2220:
1.399 www 2221: my $found=0;
1.500 foxr 2222: $render=1;
2223:
2224: # If include is specified, don't render the block
2225: # unless the preferred language is included in the set.
2226:
1.398 www 2227: if ($include) {
1.500 foxr 2228: $render=0;
1.398 www 2229: foreach my $included_language (split(/\,/,$include)) {
2230: if ($included_language eq $preferred_language) {
1.500 foxr 2231: $render=1;
1.399 www 2232: $found=1;
1.500 foxr 2233: last; # Only need to find the first.
1.398 www 2234: }
2235: }
2236: }
1.500 foxr 2237: # Do we have an exclude argument?
2238: # If so, and one of the languages matches a preferred language
2239: # inhibit rendering the block. Note that in the pathalogical case the
2240: # author has specified a preferred language in both the include and exclude
2241: # attribte exclude is preferred.
2242:
1.398 www 2243: if ($exclude) {
1.500 foxr 2244: $render=1;
1.398 www 2245: foreach my $excluded_language (split(/\,/,$exclude)) {
2246: if ($excluded_language eq $preferred_language) {
1.500 foxr 2247: $render=0;
1.399 www 2248: $found=1;
1.500 foxr 2249: last; # Only need to find the first.
1.398 www 2250: }
2251: }
2252: }
1.500 foxr 2253: if ($found) {
2254: last; # Done on any match of include or exclude.
2255: }
1.398 www 2256: }
1.500 foxr 2257: # If $render not true skip the entire block until </languageblock>
2258: #
2259:
2260: if ( ! $render ) {
1.201 albertel 2261: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
2262: $style);
2263: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2264: }
1.500 foxr 2265: # If $render is true, we've not skipped the contents of the <languageglock>
2266: # and the normal loncapa processing flow will render it as a matter of course.
2267:
1.167 www 2268: } elsif ($target eq 'edit') {
2269: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2270: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 2271: $token,40);
1.211 albertel 2272: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 2273: $token,40);
2274: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2275: } elsif ($target eq 'modified') {
2276: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 2277: $safeeval,'include',
2278: 'exclude');
1.167 www 2279: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2280: }
2281: return $result;
2282: }
2283:
2284: sub end_languageblock {
1.170 www 2285: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2286: my $result;
1.201 albertel 2287: if ($target eq "edit") {
1.170 www 2288: $result.= &Apache::edit::tag_end($target,$token,'');
2289: }
2290: return $result;
2291: }
1.500 foxr 2292: # languagblock specific tags:
2293: {
2294: # For chunks of a resource that has translations, this hash contains
2295: # the translations available indexed by language name.
2296: #
2297:
2298: my %available_texts;
1.170 www 2299:
1.500 foxr 2300: # <translated> starts a block of a resource that has multiple translations.
2301: # See the <lang> tag as well.
2302: # When </translated> is encountered if there is a translation for the
2303: # currently preferred language, that is rendered inthe web/tex/webgrade
2304: # targets. Otherwise, the default text is rendered.
2305: #
2306: # Note that <lang> is only registered for the duration of the
2307: # <translated>...</translated> block
2308: #
2309: # Pathalogical case handling:
2310: # - If there is no <lang> that specifies a 'default' and there is no
2311: # translation that matches a preferred language, nothing is rendered.
2312: # - Nested <translated>...</translated> might be linguistically supported by
2313: # XML due to the stack nature of tag registration(?) however the rendered
2314: # output will be incorrect because there is only one %available_texts
2315: # has and end_translated clears it.
2316: # - Material outside of a <lang>...</lang> block within the
2317: # <translated>...<translated> block won't render either e.g.:
2318: # <translated>
2319: # The following will be in your preferred langauge:
2320: # <lang which='en'>
2321: # This section in english
2322: # </lang>
2323: # <lang which='sgeiso'>
2324: # Hier es ist auf Deutsch.
2325: # </lang>
2326: # <lang which='sfriso'>
2327: # En Francais
2328: # </lang>
2329: # </translated>
2330: #
2331: # The introductory text prior to the first <lang> tag is not rendered.
2332: #
1.397 albertel 2333: sub start_translated {
2334: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2335: &Apache::lonxml::register('Apache::structuretags',('lang'));
2336: undef(%available_texts);
2337: }
2338:
2339: sub end_translated {
2340: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2341: my $result;
2342: #show the translation on viewable targets
2343: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
2344: # or non-viewable targets, if it's embedded in something that
2345: # wants the output
2346: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
2347: && &Apache::lonxml::in_redirection() ) ) {
2348: my @possibilities = keys(%available_texts);
2349: my $which =
2350: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 2351: if ($target eq 'tex') {
2352: $result = &select_hyphenation($which);
2353: }
2354: $result .= $available_texts{$which};
2355: if ($target eq 'tex') {
2356: $result .= &select_metadata_hyphenation(); # Restore original language.
2357: }
1.397 albertel 2358: }
2359: undef(%available_texts);
2360: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
2361: return $result;
2362: }
2363:
1.500 foxr 2364: # <lang [which='language-name'] [other='lang1,lang2...']>
2365: # Specifies that the block contained within it is a translation
2366: # for a specific language specified by the 'which' attribute. The
2367: # 'other' attribute can be used by itself or in conjunction with
2368: # which to specify this tag _may_ be used as a translation for some
2369: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
2370: # specifying that the block provides a translation for US (primary)
2371: # Canadian, Australian and UK Englush.
2372: #
2373: # Comment: this seems a bit silly why not just support a list of languages
2374: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
2375: #
2376: # Effect:
2377: # The material within the <lang>..</lang> block is stored in the
2378: # specified set of $available_texts hash entries, the appropriate one
2379: # is selected at </translated> time.
2380: #
2381: # Pathalogical case handling:
2382: # If a language occurs multiple times within a <translated> block,
2383: # only the last one is rendered e.g.:
2384: #
2385: # <translated>
2386: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
2387: # Red green color blindness is quite common affecting about 7.8% of
2388: # the male population, but onloy about .65% of the female population.
2389: # </lang>
2390: # Red green colour blindness is quite common affecting about 7.8% of
2391: # the male population, but onloy about .65% of the female population.
2392: # <lang which='seniso', other='senisoCA,senisoAU'>
2393: # </translated>
2394: #
2395: # renders the correct spelling of color (colour) for people who have specified
2396: # a preferred language that is one of the British Commonwealth languages
2397: # even though those are also listed as valid selections for the US english
2398: # <lang> block.
2399: #
1.397 albertel 2400: sub start_lang {
2401: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2402: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2403: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2404: &Apache::lonxml::startredirection();
2405: }
2406: return '';
2407: }
2408:
2409: sub end_lang {
2410: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2411: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2412: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2413: my $result = &Apache::lonxml::endredirection();
2414: my $which = &Apache::lonxml::get_param('which',$parstack,
2415: $safeeval);
1.431 raeburn 2416: if ($which=~/\w/) {
2417: $available_texts{$which} = $result;
2418: }
2419: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
2420: $safeeval);
2421: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
2422: if ($language=~/\w/) {
2423: $available_texts{$language} = $result;
2424: }
1.427 bisitz 2425: }
2426:
1.397 albertel 2427: }
2428: return '';
2429: }
1.500 foxr 2430: } # end langauge block specific tags.
2431:
1.397 albertel 2432:
1.170 www 2433: sub start_instructorcomment {
1.201 albertel 2434: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 2435:
2436: my $result;
2437:
1.339 albertel 2438: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2439: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 2440: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 2441: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 2442: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
2443: $parser,$style);
1.170 www 2444: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2445: }
2446: $result='';
2447: } elsif ($target eq 'edit') {
2448: $result .=&Apache::edit::tag_start($target,$token);
2449: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2450: }
2451: return $result;
2452: }
2453:
2454: sub end_instructorcomment {
1.159 albertel 2455: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2456: my $result;
2457: if ($target eq "edit") {
2458: $result.= &Apache::edit::tag_end($target,$token,'');
2459: }
2460: return $result;
1.4 tsai 2461: }
2462:
2463: sub start_while {
1.326 albertel 2464: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2465:
1.160 albertel 2466: my $result;
1.339 albertel 2467: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2468: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2469: my $code = $token->[2]->{'condition'};
1.4 tsai 2470:
1.160 albertel 2471: push( @Apache::structuretags::whileconds, $code);
2472: if (!$Apache::lonxml::default_homework_loaded) {
2473: &Apache::lonxml::default_homework_load($safeeval);
2474: }
2475: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2476: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2477: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2478: push( @Apache::structuretags::whileline, $token->[5]);
2479: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2480: if ( $result ) {
2481: &Apache::lonxml::newparser($parser,\$bodytext);
2482: }
2483: } elsif ($target eq 'edit') {
2484: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2485: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2486: $token,40);
2487: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2488: } elsif ($target eq 'modified') {
2489: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2490: $safeeval,'condition');
2491: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2492: }
1.160 albertel 2493: return $result;
1.4 tsai 2494: }
2495:
2496: sub end_while {
1.159 albertel 2497: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2498: my $result;
2499:
1.339 albertel 2500: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2501: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2502: my $code = pop(@Apache::structuretags::whileconds);
2503: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2504: my $line = pop(@Apache::structuretags::whileline);
2505: my $return = &Apache::run::run($code,$safeeval);
2506: my $starttime=time;
2507: my $error=0;
2508: while ($return) {
2509: if (time-$starttime >
2510: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2511: $return = 0; $error=1; next;
1.161 albertel 2512: }
2513: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2514: if ($target eq 'grade' || $target eq 'answer' ||
2515: $target eq 'analyze') {
2516: # grade/answer/analyze should produce no output but if we
2517: # are redirecting, the redirecter should know what to do
2518: # with the output
2519: if (!$Apache::lonxml::redirection) { undef($result); }
2520: }
1.161 albertel 2521: $return = &Apache::run::run($code,$safeeval);
2522: }
1.512.2.5 raeburn 2523: if ($error) {
2524: &Apache::lonxml::error(
2525: '<pre>'
2526: .&mt('Code ran too long. It ran for more than [_1] seconds.',
2527: $Apache::lonnet::perlvar{'lonScriptTimeout'})
2528: .&mt('This occurred while running <while> on line [_1].',
2529: $line)
2530: .'</pre>');
2531: }
1.160 albertel 2532: } elsif ($target eq "edit") {
2533: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2534: }
1.160 albertel 2535: return $result;
1.1 albertel 2536: }
1.6 tsai 2537:
1.160 albertel 2538: # <randomlist show="1">
1.6 tsai 2539: # <tag1>..</tag1>
2540: # <tag2>..</tag2>
2541: # <tag3>..</tag3>
1.160 albertel 2542: # ...
1.6 tsai 2543: # </randomlist>
2544: sub start_randomlist {
1.326 albertel 2545: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2546: my $result;
1.339 albertel 2547: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2548: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2549: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2550: my $b_parser= HTML::LCParser->new(\$body);
2551: $b_parser->xml_mode(1);
2552: $b_parser->marked_sections(1);
1.159 albertel 2553: my $b_tok;
2554: my @randomlist;
2555: my $list_item;
2556: while($b_tok = $b_parser->get_token() ) {
2557: if($b_tok->[0] eq 'S') { # start tag
2558: # get content of the tag until matching end tag
2559: # get all text upto the matching tag
2560: # and push the content into @randomlist
2561: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2562: $b_parser);
2563: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2564: push(@randomlist,$list_item);
2565: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2566: # $list_item</b>";
2567: }
2568: if($b_tok->[0] eq 'T') { # text
2569: # what to do with text in between tags?
2570: # print "<b>TEXT $b_tok->[1]</b><br />";
2571: }
2572: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2573: # print "<b>END-TAG $b_tok->[1]</b><br />";
2574: # }
2575: }
1.303 albertel 2576: if (@randomlist) {
2577: my @idx_arr = (0 .. $#randomlist);
1.512.2.14 raeburn 2578: if ($env{'form.code_for_randomlist'}) {
2579: &Apache::structuretags::shuffle(\@idx_arr,$target);
2580: undef($env{'form.code_for_randomlist'});
2581: } else {
2582: &Apache::structuretags::shuffle(\@idx_arr);
2583: }
1.303 albertel 2584: my $bodytext = '';
2585: my $show=$#randomlist;
2586: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2587: $showarg--;
2588: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2589: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2590: my @currlist;
2591: my $part = $Apache::inputtags::part;
2592: if ($part ne '') {
2593: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2594: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2595: if (!(grep(/^\Q$part\E$/,@currlist))) {
2596: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2597: }
2598: } else {
2599: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2600: }
2601: }
2602: }
1.512.2.9 raeburn 2603: for my $i (0 .. $show) {
2604: $bodytext .= "$randomlist[ $idx_arr[$i] ]";
1.303 albertel 2605: }
2606: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2607: }
2608: } elsif ($target eq 'edit' ) {
2609: $result .=&Apache::edit::tag_start($target,$token);
2610: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2611: $token,5);
2612: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2613: } elsif ($target eq 'modified' ) {
2614: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2615: $safeeval,'show');
2616: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2617: }
2618: return $result;
1.7 tsai 2619: }
2620:
2621: sub shuffle {
1.512.2.14 raeburn 2622: my ($a,$target) = @_;
1.7 tsai 2623: my $i;
1.303 albertel 2624: if (ref($a) eq 'ARRAY' && @$a) {
1.512.2.14 raeburn 2625: &Apache::response::pushrandomnumber(undef,$target);
1.159 albertel 2626: for($i=@$a;--$i;) {
2627: my $j=int(&Math::Random::random_uniform() * ($i+1));
2628: next if $i == $j;
2629: @$a[$i,$j] = @$a[$j,$i];
2630: }
1.251 albertel 2631: &Apache::response::poprandomnumber();
1.7 tsai 2632: }
1.6 tsai 2633: }
2634:
2635: sub end_randomlist {
1.159 albertel 2636: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2637: my $result;
2638: if ($target eq 'edit' ) {
2639: $result=&Apache::edit::tag_end($target,$token,
2640: 'End Randomly Parsed Block');
2641: }
2642: return $result;
1.6 tsai 2643: }
2644:
1.283 albertel 2645: sub ordered_show_check {
2646: my $last_part=$Apache::inputtags::partlist[-2];
2647: my $in_order=
2648: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2649: my $in_order_show=1;
2650: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2651: $in_order_show=&Apache::response::check_status($last_part);
2652: }
2653: return $in_order_show;
2654: }
2655:
1.469 www 2656:
2657: sub start_startpartmarker {
2658: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2659: my $result='';
2660: if ($target eq 'edit') {
2661: $result=&Apache::edit::tag_start($target,$token);
2662: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2663: $result.=&Apache::edit::end_table();
2664:
2665: }
2666: return $result;
2667: }
2668:
2669: sub end_startpartmarker {
2670: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2671: my @result;
2672: if ($target eq 'edit') { $result[1]='no'; }
2673: return @result;
2674: }
2675:
2676: sub start_endpartmarker {
2677: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2678: my $result='';
2679: if ($target eq 'edit') {
2680: $result=&Apache::edit::tag_start($target,$token);
2681: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2682: $result.=&Apache::edit::end_table();
2683:
2684: }
2685: return $result;
2686: }
2687:
2688: sub end_endpartmarker {
2689: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2690: my @result;
2691: if ($target eq 'edit') { $result[1]='no'; }
2692: return @result;
2693: }
2694:
2695:
2696:
2697:
2698:
1.11 albertel 2699: sub start_part {
1.326 albertel 2700: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2701: if (!$Apache::lonxml::metamode) {
2702: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2703: # duedates.
2704: }
1.159 albertel 2705: my $result='';
1.386 albertel 2706: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2707: $Apache::inputtags::part=$id;
1.177 albertel 2708: push(@Apache::inputtags::partlist,$id);
1.512.2.10 raeburn 2709: $Apache::inputtags::leniency='';
1.177 albertel 2710: @Apache::inputtags::response=();
1.159 albertel 2711: @Apache::inputtags::previous=();
2712: @Apache::inputtags::previous_version=();
1.405 albertel 2713: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2714: &Apache::response::reset_params();
2715:
1.159 albertel 2716: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2717: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2718: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.512.2.9 raeburn 2719: if ($Apache::lonhomework::type eq 'randomizetry') {
2720: my $rndseed=&setup_rndseed($safeeval,$target);
2721: if (($target eq 'grade') && &Apache::response::submitted()) {
2722: $Apache::lonhomework::results{"resource.$id.rndseed"}=$rndseed;
2723: }
2724: } elsif (($target eq 'grade') && &Apache::response::submitted()) {
2725: $Apache::lonhomework::results{"resource.$id.rndseed"}=$Apache::lonhomework::rawrndseed;
2726: }
1.283 albertel 2727: my $in_order_show=&ordered_show_check();
1.214 albertel 2728: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2729: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2730: &Apache::run::run($expression,$safeeval);
1.159 albertel 2731:
2732: if ($target eq 'meta') {
1.224 www 2733: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2734: return &Apache::response::mandatory_part_meta.
2735: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2736: } elsif ($target eq 'web' || $target eq 'grade' ||
2737: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2738: if ($hidden || !$in_order_show) {
1.326 albertel 2739: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2740: } else {
2741: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2742: push (@Apache::inputtags::status,$status);
2743: my $expression='$external::datestatus="'.$status.'";';
2744: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2745: &Apache::run::run($expression,$safeeval);
1.284 albertel 2746: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2747: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2748: }
1.216 albertel 2749: if (( $status eq 'CLOSED' ) ||
2750: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2751: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2752: ( $status eq 'BANNED') ||
2753: ( $status eq 'UNAVAILABLE') ||
2754: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2755: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2756: $style);
1.159 albertel 2757: if ( $target eq "web" ) {
1.211 albertel 2758: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2759: } elsif ( $target eq 'tex' ) {
1.284 albertel 2760: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2761: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2762: } else {
1.211 albertel 2763: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2764: }
1.159 albertel 2765: }
2766: } else {
2767: if ($target eq 'tex') {
1.284 albertel 2768: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2769: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2770: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2771: } else {
2772: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2773: }
1.195 sakharuk 2774: }
1.159 albertel 2775: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2776: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.512.2.9 raeburn 2777: my @allkeys = split(/,/,$allkeys);
1.222 sakharuk 2778: my $allow_print_points = 0;
2779: foreach my $partial_key (@allkeys) {
1.230 albertel 2780: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2781: if ($1 ne '0') {$allow_print_points=1;}
2782: }
2783: }
1.275 albertel 2784: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2785: if (defined($maxtries) && $maxtries < 0) {
2786: $allow_print_points=0;
2787: }
1.302 albertel 2788: if (lc($env{'course.'.$env{'request.course.id'}.
2789: '.disableexampointprint'}) eq 'yes') {
2790: $allow_print_points=0;
2791: }
1.463 foxr 2792: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2793: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2794:
2795: }
1.233 www 2796: } elsif ($target eq 'web') {
1.479 raeburn 2797: if ($status eq 'CAN_ANSWER') {
2798: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2799: my $num = scalar(@Apache::inputtags::partlist)-1;
1.512.2.21 raeburn 2800: if ((($Apache::lonhomework::default_type eq 'randomizetry') ||
2801: ($Apache::lonhomework::randomizetrypart)) &&
2802: ($Apache::lonhomework::type ne 'randomizetry')) {
2803: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2804: } elsif ($Apache::lonhomework::type eq 'randomizetry') {
2805: $Apache::lonhomework::randomizetrypart = 1;
2806: my $reqtries = &Apache::lonnet::EXT("resource.$id.randomizeontries");
1.479 raeburn 2807: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2808: }
2809: }
1.475 raeburn 2810: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2811: }
2812: }
2813: }
2814: } elsif ($target eq 'edit') {
2815: $result.=&Apache::edit::tag_start($target,$token);
2816: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2817: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2818: ' '.
2819: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2820: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2821: } elsif ($target eq 'modified') {
2822: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2823: $safeeval,'id','display');
1.159 albertel 2824: if ($constructtag) {
1.225 albertel 2825: #limiting ids to only letters numbers, and space
1.224 www 2826: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2827: $result = &Apache::edit::rebuild_tag($token);
2828: }
2829: }
2830: return $result;
1.11 albertel 2831: }
2832:
2833: sub end_part {
1.159 albertel 2834: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2835: &Apache::lonxml::debug("in end_part $target ");
2836: my $status=$Apache::inputtags::status['-1'];
2837: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2838: my $in_order_show=&ordered_show_check();
1.321 albertel 2839: my $result;
2840: if (!$Apache::lonxml::metamode) {
2841: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2842: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2843: }
1.312 albertel 2844: if ($target eq 'grade') {
1.249 albertel 2845: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2846: !$hidden && $in_order_show) {
1.311 foxr 2847: $result.=&Apache::inputtags::grade;
1.249 albertel 2848: } else {
2849: # move any submission data to .hidden
2850: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2851: }
1.283 albertel 2852: } elsif (($target eq 'web' || $target eq 'tex') &&
2853: !$hidden && $in_order_show) {
1.159 albertel 2854: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2855: $target);
1.490 raeburn 2856: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2857: ($env{'form.grade_imsexport'})) {
1.212 albertel 2858: $gradestatus='';
2859: }
1.311 foxr 2860: $result.=$gradestatus;
1.265 sakharuk 2861: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2862: } elsif ($target eq 'edit') {
1.311 foxr 2863: $result.=&Apache::edit::end_table();
1.322 albertel 2864: } elsif ($target eq 'modified') {
2865: $result .= $token->[2];
1.159 albertel 2866: }
2867: pop @Apache::inputtags::status;
2868: $Apache::inputtags::part='';
1.512.2.10 raeburn 2869: $Apache::inputtags::leniency='';
1.295 albertel 2870: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2871: return $result;
1.11 albertel 2872: }
1.1 albertel 2873:
1.25 albertel 2874: sub start_preduedate {
1.326 albertel 2875: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2876: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2877: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2878: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2879: if (!$Apache::lonhomework::scantronmode &&
2880: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2881: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2882: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2883: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2884: }
1.24 albertel 2885: }
1.159 albertel 2886: return '';
1.24 albertel 2887: }
2888:
1.25 albertel 2889: sub end_preduedate {
1.159 albertel 2890: return '';
1.24 albertel 2891: }
2892:
1.369 foxr 2893: # In all the modes where <postanswerdate> text is
2894: # displayable, all we do is eat up the text between the start/stop
2895: # tags if the conditions are not right to display it.
1.25 albertel 2896: sub start_postanswerdate {
1.326 albertel 2897: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2898: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2899: &Apache::lonnet::allowed('pav',
2900: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2901: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2902: $target eq 'tex' ) {
1.300 albertel 2903: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2904: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2905: (($target eq 'tex') && !$pav)) {
1.326 albertel 2906: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2907: }
2908: }
2909: return '';
1.24 albertel 2910: }
2911:
1.25 albertel 2912: sub end_postanswerdate {
1.159 albertel 2913: return '';
1.24 albertel 2914: }
2915:
1.25 albertel 2916: sub start_notsolved {
1.326 albertel 2917: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2918: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2919: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2920: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2921: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2922: if ($gradestatus =~ /^correct/ &&
2923: &Apache::response::show_answer()) {
1.159 albertel 2924: &Apache::lonxml::debug("skipping");
1.326 albertel 2925: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2926: }
1.24 albertel 2927: }
1.159 albertel 2928: return '';
1.24 albertel 2929: }
2930:
1.25 albertel 2931: sub end_notsolved {
1.159 albertel 2932: return '';
1.24 albertel 2933: }
2934:
2935: sub start_solved {
1.326 albertel 2936: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2937: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2938: $target eq 'tex') {
2939: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2940: if ($gradestatus !~ /^correct/ ||
2941: !&Apache::response::show_answer()) {
1.326 albertel 2942: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2943: }
1.24 albertel 2944: }
1.159 albertel 2945: return '';
1.24 albertel 2946: }
2947:
2948: sub end_solved {
1.248 albertel 2949: return '';
2950: }
2951:
2952: sub start_problemtype {
1.326 albertel 2953: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2954: my $result;
1.339 albertel 2955: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2956: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2957: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2958: if (!defined($mode)) { $mode='show'; }
2959: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2960: my $found=0;
2961: foreach my $type (split(',',$for)) {
2962: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2963: }
2964: if ($mode eq 'show' && !$found) {
1.326 albertel 2965: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2966: }
2967: if ($mode eq 'hide' && $found) {
1.326 albertel 2968: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2969: }
2970: } elsif ($target eq 'edit') {
2971: $result .=&Apache::edit::tag_start($target,$token);
2972: $result.=&Apache::edit::select_arg('Mode:','mode',
2973: [['show','Show'],
2974: ['hide','Hide']]
2975: ,$token);
2976: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.512.2.2 raeburn 2977: [ ['exam','Exam/Quiz Problem'],
1.248 albertel 2978: ['survey','Survey'],
1.465 raeburn 2979: ['surveycred','Survey (with credit)'],
2980: ['anonsurvey','Anonymous Survey'],
2981: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2982: ['problem','Homework Problem'],
1.479 raeburn 2983: ['practice','Practice Problem'],
2984: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2985: ,$token);
2986: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2987: } elsif ($target eq 'modified') {
2988: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2989: $safeeval,'mode','for');
2990: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2991: }
2992: return $result;
2993: }
2994:
2995: sub end_problemtype {
1.159 albertel 2996: return '';
1.24 albertel 2997: }
1.34 albertel 2998:
2999: sub start_startouttext {
1.159 albertel 3000: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3001: my @result=(''.'');
3002: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 3003:
3004: my $nesting =
3005: &Apache::lonxml::set_state('outtext',
3006: &Apache::lonxml::get_state('outtext')+1);
3007: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
3008: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
3009: }
1.159 albertel 3010: return (@result);
1.34 albertel 3011: }
1.159 albertel 3012:
1.34 albertel 3013: sub end_startouttext {
1.326 albertel 3014: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 3015: my $result='';
3016: my $text='';
3017: if ($target eq 'edit') {
1.424 foxr 3018: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 3019: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.512.2.11 raeburn 3020: $result.=&Apache::edit::start_table($token)."<tr><td>".&Apache::loncommon::insert_folding_button()
3021: ." ".&mt('Text Block')."</td>"
1.438 bisitz 3022: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 3023: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 3024: .'</span></td>'
1.512.2.12 raeburn 3025: .'<td><span id="math_'.$areaid.'">';
3026: if ($env{'environment.nocodemirror'}) {
3027: $result.=&Apache::lonhtmlcommon::dragmath_button($areaid,1);
3028: } else {
3029: $result.=' ';
3030: }
3031: $result.='</span></td>'
1.474 raeburn 3032: .'<td>'
3033: .&Apache::edit::insertlist($target,$token)
3034: .'</td>'
1.512.2.5 raeburn 3035: .'<td class="LC_edit_problem_latexhelper">' .
1.474 raeburn 3036: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 3037: &Apache::edit::end_row().
1.362 albertel 3038: &Apache::edit::start_spanning_row()."\n".
1.255 www 3039: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 3040: }
3041: if ($target eq 'modified') {
1.219 albertel 3042: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 3043: }
3044: if ($target eq 'tex') {
3045: $result .= '\noindent ';
3046: }
3047: return $result;
1.34 albertel 3048: }
1.159 albertel 3049:
1.34 albertel 3050: sub start_endouttext {
1.159 albertel 3051: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3052: my $result='';
3053: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
3054: if ($target eq "modified") {
3055: $result='<endouttext />'.
1.377 albertel 3056: &Apache::edit::handle_insertafter('startouttext');
3057: }
1.404 albertel 3058:
3059: my $nesting =
3060: &Apache::lonxml::set_state('outtext',
3061: &Apache::lonxml::get_state('outtext')-1);
3062: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
3063: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
3064: &Apache::lonxml::set_state('outtext', 0);
3065: }
1.159 albertel 3066: return $result;
1.34 albertel 3067: }
1.159 albertel 3068:
1.34 albertel 3069: sub end_endouttext {
1.159 albertel 3070: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3071: my @result=('','');
3072: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
3073: return (@result);
1.34 albertel 3074: }
1.159 albertel 3075:
1.45 albertel 3076: sub delete_startouttext {
1.326 albertel 3077: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
3078: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 3079: my $text=$$parser['-1']->get_text("/endouttext");
3080: my $ntoken=$$parser['-1']->get_token();
3081: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
3082: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
3083: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
3084: # they did the last time round
3085: &Apache::lonxml::increasedepth($ntoken);
3086: &Apache::lonxml::decreasedepth($ntoken);
3087: return 1;
1.193 www 3088: }
3089:
3090: sub start_simpleeditbutton {
3091: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3092: my $result='';
1.284 albertel 3093: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 3094: ($target eq 'web') &&
1.330 albertel 3095: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 3096: my $url=$env{'request.noversionuri'};
1.193 www 3097: $url=~s/\?.*$//;
1.367 albertel 3098: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 3099: # Warning makes more sense and is more important on edit screen
1.442 bisitz 3100: # $result='<p class="LC_warning">'
3101: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
3102: # .&Apache::loncommon::help_open_topic('Caching')
3103: # .'</p>';
1.486 www 3104: $result.=&Apache::loncommon::head_subbox(
3105: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 3106: .&Apache::lonhtmlcommon::add_item_funclist(
3107: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
3108: .&mt('Edit').'</a>')
1.486 www 3109: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 3110:
1.193 www 3111: }
3112: return $result;
3113: }
3114:
3115: sub end_simpleeditbutton {
3116: return '';
1.45 albertel 3117: }
1.34 albertel 3118:
1.428 raeburn 3119: sub practice_problem_header {
3120: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
3121: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
3122: '</span>';
3123: }
3124:
1.479 raeburn 3125: sub randomizetry_problem_header {
1.512.2.21 raeburn 3126: my ($problemstatus,$reqtries,$symb) = @_;
1.479 raeburn 3127: my ($header,$text);
3128: if ($reqtries > 1) {
3129: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
3130: if (($problemstatus eq 'no') ||
3131: ($problemstatus eq 'no_feedback_ever')) {
3132: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3133: } else {
3134: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3135: }
3136: } else {
3137: $header = &mt('New Problem Variation Each Try');
3138: if (($problemstatus eq 'no') ||
3139: ($problemstatus eq 'no_feedback_ever')) {
3140: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
3141:
3142: } else {
3143: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
3144: }
3145: }
1.512.2.21 raeburn 3146: if (($env{'request.state'} eq "construct") || ($symb eq '')) {
3147: return '<div class="LC_info" id="LC_randomizetry_header" style="display:none">'.
3148: '<h3>'.$header.'</h3><span class="LC_info">'.$text.'</span><hr /></div>';
3149: } else {
3150: return '<h3 class="LC_info">'.$header.'</h3>'.
3151: '<span class="LC_info">'.$text.'</span><hr />';
3152: }
1.479 raeburn 3153: }
3154:
3155: sub randomizetry_part_header {
3156: my ($problemstatus,$reqtries,$num) = @_;
3157: my ($header,$text);
3158: if ($reqtries eq 'none') {
3159: $header = &mt('No Question Variation');
1.512.2.23 raeburn 3160: $text = &mt('For this question there will be no new variation after a try.');
1.479 raeburn 3161: } elsif ($reqtries > 1) {
3162: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
3163: if (($problemstatus eq 'no') ||
3164: ($problemstatus eq 'no_feedback_ever')) {
3165: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3166: } else {
3167: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3168: }
3169: } else {
3170: $header = &mt('New Question Variation For Each Try');
3171: if (($problemstatus eq 'no') ||
3172: ($problemstatus eq 'no_feedback_ever')) {
3173: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
3174: } else {
3175: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
3176: }
3177: }
3178: my $output;
3179: if ($num > 1) {
3180: $output .= '<hr />';
3181: }
3182: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
3183: '<span class="LC_info">'.$text.'</span><br /><br />';
3184: return $output;
3185: }
3186:
1.1 albertel 3187: 1;
3188: __END__
1.435 jms 3189:
3190: =pod
3191:
3192: =back
3193:
3194: =cut
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