Annotation of loncom/homework/structuretags.pm, revision 1.559
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.559 ! raeburn 4: # $Id: structuretags.pm,v 1.558 2018/03/27 04:36:28 raeburn Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.435 jms 30: =pod
31:
32: =head1 NAME
33:
34: Apache::structuretags
35:
36: =head1 SYNOPSIS
37:
38:
39: This is part of the LearningOnline Network with CAPA project
40: described at http://www.lon-capa.org.
41:
42:
43: =head1 NOTABLE SUBROUTINES
44:
45: =over
46:
47: =item
48:
49: =back
50:
51: =cut
52:
1.133 sakharuk 53:
1.1 albertel 54: package Apache::structuretags;
55:
56: use strict;
57: use Apache::lonnet;
1.101 sakharuk 58: use Apache::File();
1.147 www 59: use Apache::lonmenu;
1.210 albertel 60: use Apache::lonlocal;
1.231 sakharuk 61: use Apache::lonxml;
1.434 foxr 62: use Apache::londefdef;
1.338 albertel 63: use Apache::lonenc();
1.500 foxr 64: use Apache::loncommon();
1.267 albertel 65: use Time::HiRes qw( gettimeofday tv_interval );
1.356 www 66: use lib '/home/httpd/lib/perl/';
67: use LONCAPA;
68:
1.78 harris41 69: BEGIN {
1.553 damieng 70: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','translated','instructorcomment','while','randomlist','problem','library','web','print','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startpartmarker','startouttext','endpartmarker','endouttext','simpleeditbutton','definetag'));
1.10 albertel 71: }
72:
1.500 foxr 73:
74: #---------------------------------------------------------------------------------
75: #
76: # This section of code deals with hyphenation management.
77: # We must do three things:
78: # - keep track fo the desired languages to alter the header.
79: # - provide hyphenation selection as needed by each language that appears in the
80: # text.
81: # - Provide the header text needed to make available the desired hyphenations.
82: #
83: #
84:
85: # Hash whose keys are the languages encountered in the document/resource.
86: #
87:
88: my %languages_required;
89: ##
90: # Given a language selection as input returns a chunk of LaTeX that
91: # selects the required hyphenator.
92: #
93: # @param language - the language being selected.
94: # @return string
95: # @retval The LaTeX needed to select the hyphenation appropriate to the language.
96: #
97: sub select_hyphenation {
98: my $language = shift;
99:
100: $language = &Apache::loncommon::latexlanguage($language); # Translate -> latex language.
101:
102: # If there is no latex language there's not much we can do:
103:
104: if ($language) {
105: &require_language($language);
106: my $babel_hyphenation = "\\selectlanguage{$language}";
107:
108: return $babel_hyphenation;
109: } else {
110: return '';
111: }
112: }
113: ##
114: # Selects hyphenation based on the current problem metadata.
115: # This requires that
116: # - There is a language metadata item set for the problem.
117: # - The language has a latex/babel hyphenation.
118: #
119: # @note: Uses &Apache::lonxml::request to locate the Uri associated with
120: # this problem.
121: # @return string (possibly empty).
122: # @retval If not empty an appropriate \selectlanguage{} directive.
123: #
124: sub select_metadata_hyphenation {
125: my $uri = $Apache::lonxml::request->uri;
126: my $language = &Apache::lonnet::metadata($uri, 'language');
127: my $latex_language = &Apache::loncommon::latexhyphenation($language);
128: if ($latex_language) {
129: return '\selectlanguage{'.$latex_language."}\n";
130: }
131: return ''; # no latex hyphenation or no lang metadata.
132: }
133:
134:
135: ##
136: # Clears the set of languages required by the document being rendered.
137: #
138: sub clear_required_languages {
139: %languages_required = ();
140: }
141: ##
142: # Allows an external client of this module to register a need for a language:
143: #
144: # @param LaTeX language required:
145: #
146: sub require_language {
147: my $language = shift;
148: $languages_required{$language} = 1;
149: }
150:
151: ##
152: # Provides the header for babel that indicates the languages
153: # the document requires.
154: # @return string
155: # @retval \usepackage[lang1,lang2...]{babel}
156: # @retval '' if there are no languages_required.
157: sub languages_header {
158: my $header ='';
159: my @languages = (keys(%languages_required));
160:
161: # Only generate the header if there are languages:
162:
163: if (scalar @languages) {
164: my $language_list = join(',', (@languages));
165: $header = '\usepackage['.$language_list."]{babel}\n";
166: }
167: return $header;
168: }
169:
170: #----------------------------------------------------------------------------------
171:
1.10 albertel 172: sub start_web {
1.326 albertel 173: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 174: if ($target ne 'edit' && $target ne 'modified') {
175: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
176: if ($target eq 'web' || $target eq 'webgrade') {
177: return $bodytext;
178: }
179: } elsif ($target eq "edit" ) {
180: my $bodytext =
181: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
182: my $result = &Apache::edit::tag_start($target,$token);
183: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
184: return $result;
185: } elsif ( $target eq "modified" ) {
186: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 187: }
188: return '';
1.10 albertel 189: }
190:
191: sub end_web {
1.44 ng 192: return '';
1.10 albertel 193: }
194:
1.553 damieng 195: sub start_print {
196: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
197: if ($target ne 'edit' && $target ne 'modified') {
198: if ($target ne 'tex') {
199: my $skip = &Apache::lonxml::get_all_text("/print",$parser,$style);
200: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
201: }
202: } elsif ($target eq "edit") {
203: my $bodytext = &Apache::lonxml::get_all_text_unbalanced("/print",$parser);
204: my $result = &Apache::edit::tag_start($target,$token);
205: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
206: return $result;
207: } elsif ($target eq "modified") {
208: return $token->[4].&Apache::edit::modifiedfield("/print",$parser);
209: }
210: return '';
211: }
212:
213: sub end_print {
214: return '';
215: }
216:
1.10 albertel 217: sub start_tex {
1.326 albertel 218: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 219: my $result='';
1.383 albertel 220: if ($target ne 'edit' && $target ne 'modified') {
221: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
222: if ($target eq 'tex') {
1.434 foxr 223:
224: # If inside a table, occurrences of \\ must be removed;
225: # else the table blows up.
226:
227: if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
228: $bodytext =~ s/\\\\//g;
229: }
1.432 foxr 230: return $bodytext.'{}';
1.383 albertel 231: }
232: } elsif ($target eq "edit" ) {
233: my $bodytext =
234: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
235: my $result = &Apache::edit::tag_start($target,$token);
236: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
237: return $result;
238: } elsif ( $target eq "modified" ) {
239: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 240: }
1.198 sakharuk 241: return $result;;
1.10 albertel 242: }
243:
244: sub end_tex {
1.44 ng 245: return '';
1.9 albertel 246: }
247:
1.400 albertel 248: sub homework_js {
1.531 raeburn 249: my ($postsubmit,$timeout);
250: if (($env{'request.course.id'}) && ($env{'request.state'} ne 'construct')) {
1.546 raeburn 251: my $crstype = &Apache::loncommon::course_type();
252: if ($crstype eq 'Community') {
1.531 raeburn 253: $crstype = 'community';
1.546 raeburn 254: } elsif ($crstype eq 'Placement') {
255: $crstype = 'placement';
1.531 raeburn 256: } else {
257: if ($env{'course.'.$env{'request.course.id'}.'.internal.coursecode'}) {
258: $crstype = 'official';
259: } elsif ($env{'course.'.$env{'request.course.id'}.'.internal.textbook'}) {
260: $crstype = 'textbook';
261: } else {
262: $crstype = 'unofficial';
263: }
264: }
265: $postsubmit = $env{'course.'.$env{'request.course.id'}.'.internal.postsubmit'};
266: if ($postsubmit eq '') {
267: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
268: $postsubmit = $domdefs{'postsubmit'};
269: unless ($postsubmit eq 'off') {
270: $timeout = $domdefs{$crstype.'postsubtimeout'};
271: }
272: } elsif ($postsubmit eq '0') {
273: $postsubmit = 'off';
274: } elsif ($postsubmit eq '1') {
275: $postsubmit = 'on';
276: $timeout = $env{'course.'.$env{'request.course.id'}.'.internal.postsubtimeout'};
277: if ($timeout eq '') {
278: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
279: $timeout = $domdefs{$crstype.'postsubtimeout'};
280: }
281: }
282: if ($timeout eq '') {
283: $timeout = 60;
284: }
285: } else {
286: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'request.role.domain'});
287: $postsubmit = $domdefs{'postsubmit'};
288: unless ($postsubmit eq 'off') {
289: $timeout = 60;
290: }
291: }
292: my $jstimeout = 0;
293: if ($timeout) {
294: $jstimeout = 1000 * $timeout;
295: }
1.400 albertel 296: return &Apache::loncommon::resize_textarea_js().
1.527 golterma 297: &Apache::loncommon::colorfuleditor_js().
1.416 raeburn 298: &setmode_javascript().
1.531 raeburn 299: <<"JS";
1.400 albertel 300: <script type="text/javascript">
1.483 raeburn 301: // <![CDATA[
1.494 raeburn 302: function setSubmittedPart (part,prefix) {
303: if (typeof(prefix) == 'undefined') {
304: this.document.lonhomework.submitted.value="part_"+part;
305: } else {
306: for (var i=0;i<this.document.lonhomework.elements.length;i++) {
307: if (this.document.lonhomework.elements[i].name == prefix+'submitted') {
308: this.document.lonhomework.elements[i].value="part_"+part;
309: }
310: }
311: }
1.400 albertel 312: }
313:
1.532 raeburn 314: function disableAutoComplete (id) {
315: var field = document.getElementById(id);
316: if (field != null && field != undefined){
317: if ('autocomplete' in field) {
318: field.autocomplete = "off";
319: } else {
320: field.setAttribute("autocomplete", "off");
321: }
322: }
323: }
324:
1.400 albertel 325: function image_response_click (which, e) {
326: init_geometry();
327: if (!e) { e = window.event; } //IE
328: var input_element = document.lonhomework.elements[which];
1.401 albertel 329: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 330: var token = token_element.value;
1.401 albertel 331: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 332: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
333: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
334: var click = x+':'+y;
335: input_element.value = click;
1.485 raeburn 336: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
1.400 albertel 337: }
1.520 raeburn 338:
339: var submithandled = 0;
1.521 raeburn 340: var keypresshandled = 0;
1.531 raeburn 341: var postsubmit = '$postsubmit';
1.520 raeburn 342:
1.531 raeburn 343: \$(document).ready(function(){
344: if (postsubmit != 'off') {
345: \$(document).keypress(function(event){
1.521 raeburn 346: var keycode = (event.keyCode ? event.keyCode : event.which);
347: if ((keycode == '13') && (keypresshandled == 0)) {
1.531 raeburn 348: if ( \$( document.activeElement ).hasClass("LC_textline") ) {
1.521 raeburn 349: keypresshandled = 1;
1.531 raeburn 350: var idsArray = \$( document.activeElement ).attr("id").split(/HWVAL_/);
1.521 raeburn 351: if (idsArray.length) {
352: event.preventDefault();
353: var itemsArray = idsArray[1].split(/_/);
354: var buttonId = idsArray[0]+'submit_'+itemsArray[0];
1.531 raeburn 355: \$("#"+buttonId).trigger("click");
1.521 raeburn 356: }
357: }
358: }
359: });
360:
1.531 raeburn 361: \$(document).delegate('form :submit', 'click', function( event ) {
362: if ( \$( this ).hasClass( "LC_hwk_submit" ) ) {
1.520 raeburn 363: var buttonId = this.id;
1.531 raeburn 364: var timeout = $jstimeout;
1.520 raeburn 365: if (submithandled == 0) {
366: submithandled = 1;
1.531 raeburn 367: \$( "#msg_"+buttonId ).css({"display": "inline","background-color": "#87cefa",
1.521 raeburn 368: "color": "black","padding": "2px"}) ;
1.531 raeburn 369: if (( \$(this.form).id == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
1.522 raeburn 370: if (buttonId != "all_submit") {
1.531 raeburn 371: \$( ".LC_status_"+buttonId ).hide();
1.522 raeburn 372: if (( "#"+buttonId+"_pressed" ).length) {
1.531 raeburn 373: \$( "#"+buttonId+"_pressed" ).val( "1" );
1.522 raeburn 374: }
1.520 raeburn 375: }
1.522 raeburn 376: } else {
1.531 raeburn 377: \$( ".LC_status_"+buttonId ).hide();
1.520 raeburn 378: }
1.531 raeburn 379: \$(this.form).submit();
380: \$( ".LC_hwk_submit" ).prop( "disabled", true);
381: \$( ".LC_textline" ).prop( "readonly", "readonly");
1.520 raeburn 382: event.preventDefault();
1.531 raeburn 383:
384: if (timeout > 0) {
385: setTimeout(function(){
386: \$( "#msg_"+buttonId ).css({"display": "none"});
387: if (( \$(this.form).id == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
388: if (buttonId != "all_submit") {
389: if (( "#"+buttonId+"_pressed" ).length) {
390: \$( "#"+buttonId+"_pressed" ).val( "" );
391: }
392: }
393: }
394: \$( ".LC_hwk_submit" ).prop( "disabled", false);
395: \$( ".LC_textline" ).prop( "readonly", false);
396: submithandled = 0;
397: keypresshandled = 0;
398: }, timeout);
399: }
1.520 raeburn 400: return true;
401: }
402: }
403: });
1.531 raeburn 404: }
1.520 raeburn 405: });
406:
1.483 raeburn 407: // ]]>
1.400 albertel 408: </script>
409: JS
410: }
411:
1.416 raeburn 412: sub setmode_javascript {
413: return <<"ENDSCRIPT";
414: <script type="text/javascript">
1.485 raeburn 415: // <![CDATA[
1.416 raeburn 416: function setmode(form,probmode) {
1.554 damieng 417: var initial = form.problemmode.value;
1.416 raeburn 418: form.problemmode.value = probmode;
419: form.submit();
1.554 damieng 420: form.problemmode.value = initial;
1.416 raeburn 421: }
1.485 raeburn 422: // ]]>
1.416 raeburn 423: </script>
424: ENDSCRIPT
425: }
426:
1.48 albertel 427: sub page_start {
1.345 albertel 428: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
429: $extra_head)=@_;
1.159 albertel 430: my %found;
1.207 albertel 431: foreach my $taginside (@$tagstack) {
1.159 albertel 432: foreach my $taglookedfor ('html','body','form') {
433: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
434: }
435: }
436:
1.343 albertel 437: if ($target eq 'tex') {
438: return
439: &Apache::londefdef::start_html($target,$token,$tagstack,
440: $parstack,$parser,$safeeval);
441: }
442:
1.474 raeburn 443: $extra_head .= &homework_js().
444: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
445: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
1.550 raeburn 446: my %textarea_args;
447: if (($env{'request.state'} ne 'construct') ||
448: ($env{'environment.nocodemirror'})) {
449: %textarea_args = (
1.474 raeburn 450: dragmath => 'math',
451: );
1.550 raeburn 452: }
1.474 raeburn 453: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 454: }
1.478 raeburn 455: my $is_task = ($env{'request.uri'} =~ /\.task$/);
1.528 raeburn 456: my ($needs_upload,$partlist);
1.495 raeburn 457: my ($symb)= &Apache::lonnet::whichuser();
458: my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
1.478 raeburn 459: if ($is_task) {
1.495 raeburn 460: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
1.493 raeburn 461: } else {
462: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.uploadedfiletypes") ne '') {
1.495 raeburn 463: unless ($env{'request.state'} eq 'construct') {
464: my $navmap = Apache::lonnavmaps::navmap->new();
465: if (ref($navmap)) {
466: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 467: my $is_page;
468: if (ref($mapres)) {
469: $is_page = $mapres->is_page();
470: }
471: unless ($is_page) {
1.495 raeburn 472: $needs_upload = 1;
473: }
1.528 raeburn 474: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
475: my $res = $navmap->getBySymb($symb);
476: if (ref($res)) {
477: $partlist = $res->parts();
478: }
479: }
1.495 raeburn 480: }
481: }
1.493 raeburn 482: } else {
483: unless ($env{'request.state'} eq 'construct') {
484: my $navmap = Apache::lonnavmaps::navmap->new();
485: if (ref($navmap)) {
1.495 raeburn 486: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 487: my $is_page;
488: if (ref($mapres)) {
489: $is_page = $mapres->is_page();
490: }
1.528 raeburn 491: if ($is_page) {
492: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
493: my $res = $navmap->getBySymb($symb);
494: if (ref($res)) {
495: $partlist = $res->parts();
496: }
497: }
498: } else {
1.495 raeburn 499: my $res = $navmap->getBySymb($symb);
500: if (ref($res)) {
1.528 raeburn 501: $partlist = $res->parts();
1.495 raeburn 502: if (ref($partlist) eq 'ARRAY') {
503: foreach my $part (@{$partlist}) {
504: my @types = $res->responseType($part);
505: my @ids = $res->responseIds($part);
506: for (my $i=0; $i < scalar(@ids); $i++) {
507: if ($types[$i] eq 'essay') {
508: my $partid = $part.'_'.$ids[$i];
509: if (&Apache::lonnet::EXT("resource.$partid.uploadedfiletypes") ne '') {
510: $needs_upload = 1;
511: last;
512: }
1.493 raeburn 513: }
514: }
515: }
1.495 raeburn 516: }
517: }
1.493 raeburn 518: }
519: }
520: }
521: }
1.495 raeburn 522: if ($needs_upload) {
1.538 musolffc 523: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js()
524: .'<script type="text/javascript"
525: src="/res/adm/includes/file_upload.js"></script>';
1.495 raeburn 526: }
1.478 raeburn 527: }
1.425 raeburn 528:
1.344 albertel 529: my %body_args;
530: if (defined($found{'html'})) {
531: $body_args{'skip_phases'}{'head'}=1;
532: } else {
1.343 albertel 533:
1.345 albertel 534: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 535:
1.379 albertel 536: $extra_head .= &Apache::londefdef::generate_css_links();
537:
1.384 albertel 538: if ($env{'request.state'} eq 'construct') {
1.343 albertel 539: $extra_head.=&Apache::edit::js_change_detection().
540: "<script type=\"text/javascript\">\n".
541: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
542: &Apache::loncommon::browser_and_searcher_javascript().
543: "\n</script>\n";
1.525 raeburn 544: if ($target eq 'edit') {
545: $extra_head .= &Apache::edit::js_update_linknum();
546: }
1.343 albertel 547: }
1.159 albertel 548: }
1.343 albertel 549:
1.446 bisitz 550: my $pageheader = '';
1.344 albertel 551: if (defined($found{'body'})) {
552: $body_args{'skip_phases'}{'body'}=1;
553: } elsif (!defined($found{'body'})
554: && $env{'request.state'} eq 'construct') {
1.343 albertel 555: if ($target eq 'web' || $target eq 'edit') {
1.542 raeburn 556: unless ($env{'form.inhibitmenu'} eq 'yes') {
557: # Breadcrumbs for Authoring Space
558: &Apache::lonhtmlcommon::clear_breadcrumbs();
559: &Apache::lonhtmlcommon::add_breadcrumb({
560: 'text' => 'Authoring Space',
561: 'href' => &Apache::loncommon::authorspace($env{'request.uri'}),
562: });
563: # breadcrumbs (and tools) will be created
564: # in start_page->bodytag->innerregister
1.460 droeschl 565:
1.450 bisitz 566: # FIXME Where are we?
1.542 raeburn 567: # &Apache::lonhtmlcommon::add_breadcrumb({
568: # 'text' => 'Problem Editing', # 'Problem Testing'
569: # 'href' => '',
570: # });
571: $pageheader = &Apache::loncommon::head_subbox(
572: &Apache::loncommon::CSTR_pageheader());
573: }
574: }
1.272 albertel 575: } elsif (!defined($found{'body'})) {
1.343 albertel 576: my %add_entries;
1.159 albertel 577: my $background=&Apache::lonxml::get_param('background',$parstack,
578: $safeeval);
1.343 albertel 579: if ($background ne '' ) {
580: $add_entries{'background'} = $background;
581: }
1.344 albertel 582:
1.290 albertel 583: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
584: $safeeval);
1.446 bisitz 585: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 586:
1.446 bisitz 587: $body_args{'bgcolor'} = $bgcolor;
588: # $body_args{'no_title'} = 1;
589: $body_args{'force_register'} = 1;
590: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 591: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 592: $body_args{'only_body'} = 1;
1.518 raeburn 593: } elsif ($target eq 'web') {
594: $body_args{'print_suppress'} = 1;
1.446 bisitz 595: }
1.344 albertel 596: }
1.365 albertel 597: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 598: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
599: \%body_args);
1.446 bisitz 600: $page_start .= $pageheader;
1.462 raeburn 601: if (!defined($found{'body'})
602: && $env{'request.state'} ne 'construct'
603: && ($target eq 'web' || $target eq 'webgrade')) {
604:
605: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
606: if ($symb eq '' && !$publicuser) {
607: $page_start .= '<p class="LC_info">'
608: .&mt('Browsing resource, all submissions are temporary.')
609: .'</p>';
1.457 bisitz 610: }
1.344 albertel 611: }
612:
1.409 albertel 613: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 614: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 615: }
616: my $form_tag_start;
617: if (!defined($found{'form'})) {
1.337 albertel 618: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 619: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 620: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 621: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 622: $form_tag_start.=$uri.'" ';
623: if ($target eq 'edit') {
624: $form_tag_start.=&Apache::edit::form_change_detection();
625: }
1.493 raeburn 626: my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
627: my ($path,$multiresp) =
628: &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
1.495 raeburn 629: if (($is_task) || ($needs_upload)) {
630: $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
1.478 raeburn 631: }
1.368 albertel 632: $form_tag_start.='>'."\n";
1.355 albertel 633:
634: if ($symb =~ /\S/) {
635: $symb=
636: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
637: $form_tag_start.=
1.368 albertel 638: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 639: }
1.159 albertel 640: }
1.528 raeburn 641: return ($page_start,$form_tag_start,$partlist);
1.105 albertel 642: }
643:
1.141 matthew 644: #use Time::HiRes();
1.105 albertel 645: sub get_resource_name {
1.159 albertel 646: my ($parstack,$safeeval)=@_;
1.388 foxr 647: my $name;
1.204 albertel 648: if (defined($Apache::lonhomework::name)) {
1.388 foxr 649: $name = $Apache::lonhomework::name;
650: } else {
651: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 652: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 653: if ($name eq '') {
654: $name=&Apache::lonnet::EXT('resource.title');
655: if ($name eq 'con_lost') { $name = ''; }
656: }
657: if ($name!~/\S+/) {
658: $name=$env{'request.uri'};
659: $name=~s-.*/([^/]+)$-$1-;
660: }
661: # The name has had html tags escaped:
662:
663: $name=~s/</</gs;
664: $name=~s/>/>/gs;
665:
666: $Apache::lonhomework::name=$name;
1.204 albertel 667: }
1.159 albertel 668: return $name;
1.105 albertel 669: }
670:
671: sub setup_rndseed {
1.528 raeburn 672: my ($safeeval,$target,$probpartlist)=@_;
1.367 albertel 673: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 674: my ($questiontype,$set_safespace,$rndseed);
675: if ($target eq 'analyze') {
676: $questiontype = $env{'form.grade_questiontype'};
677: }
678: unless (defined($questiontype)) {
679: $questiontype = $Apache::lonhomework::type;
680: }
1.555 raeburn 681: if (($env{'request.state'} eq "construct")
682: || ($symb eq '')
683: || ($Apache::lonhomework::type eq 'practice')
684: || ($Apache::lonhomework::history{'resource.CODE'})
685: || (($env{'form.code_for_randomlist'}) && ($target eq 'analyze'))) {
1.316 www 686: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 687: ['rndseed']);
1.284 albertel 688: $rndseed=$env{'form.rndseed'};
1.159 albertel 689: if (!$rndseed) {
1.162 albertel 690: $rndseed=$Apache::lonhomework::history{'rndseed'};
691: if (!$rndseed) {
692: $rndseed=time;
693: }
1.555 raeburn 694: unless ($env{'form.code_for_randomlist'}) {
695: $env{'form.rndseed'}=$rndseed;
696: }
1.162 albertel 697: }
1.479 raeburn 698: if (($env{'request.state'} eq "construct") &&
699: ($Apache::lonhomework::type eq 'randomizetry')) {
700: my $tries = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
701: if ($tries) {
702: $rndseed += $tries;
703: }
1.480 raeburn 704: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 705: }
1.551 damieng 706: if ( ($env{'form.resetdata'} eq 'new_problem_variation'
1.374 albertel 707: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 708: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 709: srand(time);
710: $rndseed=int(rand(2100000000));
1.284 albertel 711: $env{'form.rndseed'}=$rndseed;
712: delete($env{'form.resetdata'});
713: delete($env{'form.newrandomization'});
1.159 albertel 714: }
1.488 www 715: $rndseed=~s/\,/\:/g;
716: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 717: if (defined($rndseed)) {
718: my ($c1,$c2)=split(/\:/,$rndseed);
719: unless ($c2) { $c2=0; }
720: unless (($c1==int($c1)) && ($c2==int($c2))) {
721: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
722: }
1.187 albertel 723: }
1.555 raeburn 724: if (($env{'form.code_for_randomlist'}) && ($target eq 'analyze')) {
725: $env{'form.CODE'} = $env{'form.code_for_randomlist'};
726: $rndseed=&Apache::lonnet::rndseed();
727: undef($env{'form.CODE'});
728: } elsif ($Apache::lonhomework::history{'resource.CODE'}) {
1.247 albertel 729: $rndseed=&Apache::lonnet::rndseed();
730: }
1.479 raeburn 731: $set_safespace = 1;
732: } elsif ($questiontype eq 'randomizetry') {
733: if ($target eq 'analyze') {
734: if (defined($env{'form.grade_rndseed'})) {
735: $rndseed = $env{'form.grade_rndseed'};
736: }
737: }
738: unless (($target eq 'analyze') && (defined($rndseed))) {
739: $rndseed=&Apache::lonnet::rndseed();
1.528 raeburn 740: my $partfortries = $Apache::inputtags::part;
741: if (ref($probpartlist) eq 'ARRAY') {
742: if ((@{$probpartlist} == 1) && ($probpartlist->[0] ne $Apache::inputtags::part)) {
743: $partfortries = $probpartlist->[0];
744: }
745: }
746: my $curr_try = $Apache::lonhomework::history{"resource.$partfortries.tries"};
1.479 raeburn 747: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
748: $curr_try ++;
749: }
750: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
751: $rndseed = $1;
752: }
753: if ($curr_try) {
1.528 raeburn 754: my $reqtries = &Apache::lonnet::EXT("resource.$partfortries.randomizeontries");
1.479 raeburn 755: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
756: my $inc = int(($curr_try-1)/$reqtries);
757: $rndseed += $inc;
758: } else {
759: $rndseed += $curr_try;
760: }
761: }
762: }
763: $set_safespace = 1;
1.528 raeburn 764: if ($target eq 'grade') {
765: $Apache::lonhomework::rawrndseed = $rndseed;
766: }
1.479 raeburn 767: }
768: if ($set_safespace) {
769: if ($safeeval) {
770: &Apache::lonxml::debug("Setting rndseed to $rndseed");
771: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
772: }
773: }
774: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
775: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 776: }
777: return $rndseed;
1.105 albertel 778: }
779:
1.268 albertel 780: sub remember_problem_state {
781: return '
1.284 albertel 782: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
783: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
784: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 785: }
786:
1.487 www 787: sub problem_edit_action_button {
788: my ($name,$action,$accesskey,$text,$flag)=@_;
789: my $actionscript="setmode(this.form,'$action')";
790: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
791: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
792: }
793:
1.423 www 794: sub problem_edit_buttons {
1.487 www 795: my ($mode)=@_;
1.535 droeschl 796: # Buttons that save
797: my $result = '<div style="float:right">';
798: if ($mode eq 'editxml') {
799: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
800: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
801: } else {
802: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
803: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
804: }
805: $result.="\n</div>\n";
1.487 www 806: # Buttons that do not save
1.535 droeschl 807: $result .= '<div>'.
1.487 www 808: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
809: if ($mode eq 'editxml') {
810: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
811: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
1.550 raeburn 812: if ($env{'environment.nocodemirror'}) {
813: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
814: }
1.487 www 815: } else {
816: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
817: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
818: }
819: $result.="\n</div>";
820: return $result;
1.423 www 821: }
822:
823: sub problem_edit_header {
1.527 golterma 824: my ($mode)=@_;
825: my $return = '<input type="hidden" name="submitted" value="edit" />'.
1.487 www 826: &remember_problem_state('edit').'
1.527 golterma 827: <div class="LC_edit_problem_header">
828: <div class="LC_edit_problem_header_title">
829: '.&mt('Problem Editing').$mode.&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
830: </div><div class="LC_edit_actionbar" id="actionbar">'.
831: '<input type="hidden" name="problemmode" value="saveedit" />'.
832: &problem_edit_buttons();
833:
1.535 droeschl 834: $return .= '</div></div>' . &Apache::lonxml::message_location();
1.527 golterma 835: $return .= '<link rel="stylesheet" href="/adm/codemirror/codemirror-combined.css" />
836: <script type="text/javascript" src="/adm/codemirror/codemirror-compressed-colorful.js"></script>';
837:
838: $return .= '<script type="text/javascript" src="/adm/jQuery/addons/jquery-scrolltofixed.js"></script>
839: <script type="text/javascript">
840: // unless internet explorer
841: if (!(window.navigator.appName == "Microsoft Internet Explorer" && (document.documentMode || document.compatMode))){
842: $(document).ready(
843: function() {
844: $(\'.LC_edit_actionbar\').scrollToFixed(
845: {
846: fixed: function(){
1.535 droeschl 847: //$(this).find(\'.LC_edit_actionbar\').css(\'height\', \'31px\');
848: $(this).find(\'.LC_edit_actionbar\');
1.527 golterma 849: }
850: }
851: );
852: }
853: );
854: }
855: </script>
856: <table id="LC_edit_problem_colorful" border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
857: return $return;
1.105 albertel 858: }
859:
860: sub problem_edit_footer {
1.527 golterma 861: my $resource = $env{'request.ambiguous'};
1.412 albertel 862: return '</td></tr></table><br />
863: <div class="LC_edit_problem_footer">
1.453 bisitz 864: <hr />'.
1.423 www 865: &problem_edit_buttons().'
1.459 bisitz 866: <hr style="clear:both;" />
1.527 golterma 867: <script type="text/javascript">
868: restoreState("'.$resource.'");
869: restoreScrollPosition("'.$resource.'");
870: </script>
1.412 albertel 871: </div>
872: '.
1.342 albertel 873: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 874: }
875:
1.235 albertel 876: sub option {
877: my ($value,$name) = @_;
878: my $result ="<option value='".$value."' ";
1.284 albertel 879: if ($env{'form.'.$name} eq $value) {
1.235 albertel 880: $result.=" selected='on' ";
881: }
882: $result.='>';
883: return $result;
884: }
885:
1.105 albertel 886: sub problem_web_to_edit_header {
1.159 albertel 887: my ($rndseed)=@_;
1.406 albertel 888: my $result .= '<div class="LC_edit_problem_header">';
889:
890: if (!$Apache::lonhomework::parsing_a_task) {
891: $result .=
892: '<div class="LC_edit_problem_header_title">'.
893: &mt('Problem Testing').
894: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
895: '</div>';
896: } else {
897: $result .=
898: '<div class="LC_edit_problem_header_title">'.
899: &mt('Task Testing').
900: '</div>';
901: }
902:
1.315 albertel 903: my $show_all_foils_text =
904: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 905: &mt('Show All Instances')
906: : &mt('Show All Foils');
1.315 albertel 907:
1.452 bisitz 908: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
909: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 910: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 911: $show_all.= ' /> '.$show_all_foils_text
912: .'</label></span>';
1.406 albertel 913:
914:
1.384 albertel 915:
1.406 albertel 916: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 917: if (!$Apache::lonhomework::parsing_a_task) {
918: $result.="
1.406 albertel 919: <div class='LC_edit_problem_header_row1'>
920: <span class=\"LC_nobreak\">
1.405 albertel 921: ".&mt("Problem Status:")."
1.235 albertel 922: <select name='problemstate'>
1.270 albertel 923: <option value=''></option>
1.235 albertel 924: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
925: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
926: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
927: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
928: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
929: </select>
1.406 albertel 930: </span>
931: <span class=\"LC_nobreak\">
1.405 albertel 932: ".&mt("Problem Type:")."
1.235 albertel 933: <select name='problemtype'>
1.270 albertel 934: <option value=''></option>
1.509 bisitz 935: ".&option('exam' ,'problemtype').&mt("Bubblesheet Exam Problem")."</option>
1.428 raeburn 936: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 937: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 938: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
939: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
940: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 941: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 942: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 943: </select>
1.406 albertel 944: </span>
945: $show_all
946: </div>
947: <div class='LC_edit_problem_header_row2'>
948: <span class=\"LC_nobreak\">
1.405 albertel 949: ".&mt("Feedback Mode:")."
1.235 albertel 950: <select name='problemstatus'>
951: <option value=''></option>
1.242 albertel 952: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.517 bisitz 953: ".&option('no', 'problemstatus').&mt("Don't Show Incorrect/Correct Feedback")."</option>
1.405 albertel 954: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 955: </select>
1.406 albertel 956: </span>
957: ";
958:
1.376 albertel 959: } elsif ($Apache::lonhomework::parsing_a_task) {
960: $result.="
1.406 albertel 961: <div class='LC_edit_problem_header_row1'>
962: <span class=\"LC_nobreak\">
1.405 albertel 963: ".&mt("Problem Status:")."
1.376 albertel 964: <select name='problemstate'>
965: <option value=''></option>
966: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
967: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
968: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
969: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
970: </select>
1.406 albertel 971: </span>
972: $show_all
973: ";
974: }
975: $result.='
976: <span class="LC_nobreak">
977: '.&mt('Apply style file: ').'
978: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
979: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
980: </span>
1.422 www 981: </div>
982: <div class="LC_edit_problem_header_row1">'.
983: &Apache::lonxml::renderingoptions().'
1.406 albertel 984: </div>
985: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
986: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
1.551 damieng 987: <button type="submit" name="resetdata" accesskey="r" value="reset_submissions">
988: '.&mt('Reset Submissions').'</button>
1.406 albertel 989: </div>
1.453 bisitz 990: <hr />
1.406 albertel 991: <div class="LC_edit_problem_header_randomize_row">
992: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
993: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 994: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 995: $rndseed.'"
996: onchange="javascript:document.lonhomework.changerandseed.click()" />';
997:
998: if (!$Apache::lonhomework::parsing_a_task) {
999: my $numtoanalyze=$env{'form.numtoanalyze'};
1000: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 1001: $result .= '<span class="LC_nobreak">'.
1002: &mt('[_1] for [_2] versions.',
1.416 raeburn 1003: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 1004: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
1005: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 1006: $numtoanalyze.'" size="5" />').
1007: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
1008: '</span>';
1009:
1.313 albertel 1010: }
1.406 albertel 1011:
1012: $result.='
1013: </div>
1.453 bisitz 1014: <hr />
1.447 bisitz 1015: <div>';
1.416 raeburn 1016: $result.='<input type="hidden" name="problemmode" value="view" />';
1017: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
1018: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
1019: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
1020: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.541 damieng 1021: if ($env{'browser.type'} ne 'explorer' || $env{'browser.version'} > 9) {
1022: my $uri = $env{'request.uri'};
1.543 damieng 1023: my $daxeurl = '/daxepage'.$uri;
1.541 damieng 1024: $result .= '<input type="button" value="'.&mt('Edit with Daxe').'" '.
1025: 'onclick="window.open(\''.$daxeurl.'\',\'_blank\');" />';
1026: }
1.408 albertel 1027: $result.='
1028: </div>
1.453 bisitz 1029: <hr />
1.409 albertel 1030: '.&Apache::lonxml::message_location().'
1.406 albertel 1031: </div>';
1.159 albertel 1032: return $result;
1.48 albertel 1033: }
1034:
1.65 albertel 1035: sub initialize_storage {
1.357 albertel 1036: my ($given_symb) = @_;
1.353 albertel 1037: undef(%Apache::lonhomework::results);
1038: undef(%Apache::lonhomework::history);
1.357 albertel 1039: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1040: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 1041:
1042: # anonymous users (CODEd exams) have no data
1043: if ($name eq 'anonymous'
1044: && !defined($domain)) {
1045: return;
1046: }
1047:
1.333 albertel 1048: if ($env{'request.state'} eq 'construct'
1049: || $symb eq ''
1050: || $Apache::lonhomework::type eq 'practice') {
1051:
1052: my $namespace = $symb || $env{'request.uri'};
1.551 damieng 1053: if ($env{'form.resetdata'} eq 'reset_submissions' ||
1054: ($env{'form.resetdata'} eq 'new_problem_variation'
1.374 albertel 1055: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 1056: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1057: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
1058: &Apache::lonxml::debug("Attempt reset");
1059: }
1.159 albertel 1060: %Apache::lonhomework::history=
1.333 albertel 1061: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.526 raeburn 1062: my ($temp)=keys(%Apache::lonhomework::history) ;
1.159 albertel 1063: &Apache::lonxml::debug("Return message of $temp");
1064: } else {
1065: %Apache::lonhomework::history=
1066: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1067: }
1.353 albertel 1068:
1.159 albertel 1069: #ignore error conditions
1.526 raeburn 1070: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1071: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 1072: }
1073:
1.435 jms 1074: =pod
1075:
1076: =item finalize_storage()
1077:
1.524 raeburn 1078: Stores away the result hash to a student's environment;
1.523 raeburn 1079: checks form.grade_ for specific values, otherwise stores
1080: to the running user's environment.
1.524 raeburn 1081:
1082: &check_correctness_changes() is called in two circumstances
1083: in which the results hash is to be stored permanently, for
1084: grading triggered by a student's submission, where feedback on
1085: correctness is to be provided to the student.
1086:
1087: 1. Immediately prior to storing the results hash
1088:
1089: To handle the case where a student's submission (and award) were
1090: stored after history was retrieved in &initialize_storage(), e.g.,
1091: if a student submitted answers in quick succession (e.g., from
1092: multiple tabs). &Apache::inputtags::hidealldata() is called for
1093: any parts with out-of-order storage (i.e., correct then incorrect,
1094: where awarded >= 1 when correct).
1095:
1096: 2. Immediately after storing the results hash
1097:
1098: To handle the case where lond on the student's homeserver returns
1099: delay:N -- where N is the number of transactions between the last
1100: retrieved in &initialize_storage() and the last stored immediately
1101: before permanent storage of the current transaction via
1102: lond::store_handler(). &Apache::grades::makehidden() is called
1103: for any parts with out-of-order storage (i.e., correct then incorrect,
1104: where awarded >= 1 when correct).
1105:
1106: Will call &store_aggregates() to increment totals for attempts,
1107: students, and corrects, if running user has student role.
1108:
1.435 jms 1109: =cut
1110:
1111:
1.65 albertel 1112: sub finalize_storage {
1.357 albertel 1113: my ($given_symb) = @_;
1.159 albertel 1114: my $result;
1.289 albertel 1115: if (%Apache::lonhomework::results) {
1.323 albertel 1116: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
1117: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 1118: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1119: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 1120: if ($env{'request.state'} eq 'construct'
1121: || $symb eq ''
1122: || $Apache::lonhomework::type eq 'practice') {
1123: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 1124: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 1125: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 1126: $namespace,'',$domain,$name);
1.159 albertel 1127: &Apache::lonxml::debug('Construct Store return message:'.$result);
1128: } else {
1.524 raeburn 1129: my ($laststore,$checkedparts,@parts,%postcorrect);
1130: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1131: (!$Apache::lonhomework::scantronmode) && (!defined($env{'form.grade_symb'})) &&
1132: (!defined($env{'form.grade_courseid'}))) {
1133: if ($Apache::lonhomework::history{'version'}) {
1134: $laststore = $Apache::lonhomework::history{'version'}.'='.
1135: $Apache::lonhomework::history{'timestamp'};
1136: } else {
1137: $laststore = '0=0';
1138: }
1139: my %record = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1140: if ($record{'version'}) {
1141: my ($newversion,$oldversion,$oldtimestamp);
1142: if ($Apache::lonhomework::history{'version'}) {
1143: $oldversion = $Apache::lonhomework::history{'version'};
1144: $oldtimestamp = $Apache::lonhomework::history{'timestamp'};
1145: } else {
1146: $oldversion = 0;
1147: $oldtimestamp = 0;
1148: }
1149: if ($record{'version'} > $oldversion) {
1150: if ($record{'timestamp'} >= $oldtimestamp) {
1151: $laststore = $record{'version'}.'='.$record{'timestamp'};
1152: $newversion = $record{'version'} + 1;
1153: $checkedparts = 1;
1154: foreach my $key (keys(%Apache::lonhomework::results)) {
1155: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1156: my $part = $1;
1157: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1158: push(@parts,$part);
1159: }
1160: }
1161: }
1162: if (@parts) {
1163: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1164: \%record,\@parts,$newversion,
1165: $oldversion);
1166: if (@parts_to_hide) {
1167: foreach my $part (@parts_to_hide) {
1168: $postcorrect{$part} = 1;
1169: &Apache::inputtags::hidealldata($part);
1170: }
1171: }
1172: }
1173: }
1174: }
1175: }
1176: }
1.159 albertel 1177: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
1.524 raeburn 1178: $symb,$courseid,$domain,$name,$laststore);
1179: if ($result =~ /^delay\:(\d+)$/) {
1180: my $numtrans = $1;
1181: my ($oldversion) = split(/=/,$laststore);
1182: if ($numtrans) {
1183: my $newversion = $oldversion + 1 + $numtrans;
1184: my @possparts;
1185: if ($checkedparts) {
1186: foreach my $part (@parts) {
1187: unless ($postcorrect{$part}) {
1188: push(@possparts,$part);
1189: }
1190: }
1191: } else {
1192: foreach my $key (keys(%Apache::lonhomework::results)) {
1193: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1194: my $part = $1;
1195: unless ($postcorrect{$part}) {
1196: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1197: push(@possparts,$part);
1198: }
1199: }
1200: }
1201: }
1202: }
1203: if (@possparts) {
1204: my %newrecord = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1205: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1206: \%newrecord,\@possparts,$newversion,
1207: $oldversion);
1208: if (@parts_to_hide) {
1209: my $partslist = join(',',@parts_to_hide);
1210: &Apache::grades::makehidden($newversion,$partslist,\%newrecord,$symb,$domain,$name,1);
1211: }
1212: }
1213: }
1214: }
1.159 albertel 1215: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 1216: &store_aggregates($symb,$courseid);
1.159 albertel 1217: }
1.323 albertel 1218: } else {
1219: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 1220: }
1.159 albertel 1221: return $result;
1.65 albertel 1222: }
1223:
1.435 jms 1224: =pod
1225:
1.524 raeburn 1226: =item check_correctness_changes()
1227:
1228: For all parts for which current results contain a solved status
1229: of "incorrect_attempted", check if there was a transaction in which
1230: solved was set to "correct_by_student" in the time since the last
1231: transaction (retrieved when &initialize_storage() was called i.e.,
1232: when &start_problem() was called), unless:
1233: (a) questiontype parameter is set to survey or anonymous survey (+/- credit)
1234: (b) problemstatus is set to no or no_feedback_ever
1235: If such a transaction exists, and did not occur after "reset status"
1236: by a user with grading privileges, then the current transaction is an
1237: example of an out-of-order transaction (i.e., incorrect occurring after
1238: correct). Accordingly, the current transaction should be hidden.
1239:
1240: =cut
1241:
1242:
1243: sub check_correctness_changes {
1244: my ($symb,$courseid,$domain,$name,$record,$parts,$newversion,$oldversion) = @_;
1245: my @parts_to_hide;
1246: unless ((ref($record) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
1247: return @parts_to_hide;
1248: }
1249: if (@{$parts}) {
1250: my $usec;
1251: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1252: ($env{'request.course.id'} eq $courseid)) {
1253: $usec = $env{'request.course.sec'};
1254: } else {
1255: $usec = &Apache::lonnet::getsection($domain,$name,$courseid);
1256: }
1257: foreach my $id (@{$parts}) {
1258: next if (($Apache::lonhomework::results{'resource.'.$id.'.type'} =~ /survey/) ||
1259: (&Apache::lonnet::EXT("resource.$id.problemstatus",$symb,
1260: $domain,$name,$usec,undef,$courseid) =~ /^no/));
1261: my $reset;
1262: for (my $i=$newversion-1; $i>=$oldversion; $i--) {
1263: if (($record->{$i.':resource.'.$id.'.regrader'}) &&
1264: ($record->{$i.':resource.'.$id.'.tries'} eq '') &&
1265: ($record->{$i.':resource.'.$id.'.award'} eq '')) {
1266: $reset = 1;
1267: } elsif (($record->{$i.":resource.$id.solved"} eq 'correct_by_student') &&
1268: ($record->{$i.":resource.$id.awarded"} >= 1)) {
1269: unless ($reset) {
1270: push(@parts_to_hide,$id);
1271: last;
1272: }
1273: }
1274: }
1275: }
1276: }
1277: return @parts_to_hide;
1278: }
1279:
1280: =pod
1281:
1.435 jms 1282: item store_aggregates()
1283:
1284: Sends hash of values to be incremented in nohist_resourcetracker.db
1285: for the course. Increments total number of attempts, unique students
1286: and corrects for each part for an instance of a problem, as appropriate.
1287:
1288: =cut
1289:
1.285 raeburn 1290: sub store_aggregates {
1291: my ($symb,$courseid) = @_;
1.479 raeburn 1292: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 1293: my @parts;
1.288 albertel 1294: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
1295: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 1296: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 1297: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 1298: push(@parts, $1);
1.285 raeburn 1299: }
1300: }
1.286 albertel 1301: foreach my $part (@parts) {
1.470 raeburn 1302: if ($env{'request.role'} =~/^st/) {
1303: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
1304: eq 'APPROX_ANS' ||
1305: $Apache::lonhomework::results{'resource.'.$part.'.award'}
1306: eq 'EXACT_ANS') {
1307: $aggregate{$symb."\0".$part."\0correct"} = 1;
1308: }
1309: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1310: $aggregate{$symb."\0".$part."\0users"} = 1;
1311: } else {
1312: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1313: if ($last_reset) {
1314: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1315: $aggregate{$symb."\0".$part."\0users"} = 1;
1316: }
1317: }
1318: }
1319: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 1320: }
1.470 raeburn 1321: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 1322: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
1323: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
1324: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
1325: $randtrycounter{$symb."\0".$part} = 1;
1326: } else {
1327: $anoncounter{$symb."\0".$part} = 1;
1328: }
1.545 raeburn 1329: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}.'::'};
1.537 raeburn 1330: if ($needsrelease) {
1.470 raeburn 1331: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
1332: if ($curr_required eq '') {
1.471 raeburn 1333: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1334: } else {
1335: my ($currmajor,$currminor) = split(/\./,$curr_required);
1336: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
1337: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 1338: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1339: }
1.292 raeburn 1340: }
1341: }
1.285 raeburn 1342: }
1343: }
1.526 raeburn 1344: if (keys(%aggregate) > 0) {
1.289 albertel 1345: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 1346: $cdomain,$cname);
1347: }
1.472 raeburn 1348: if (keys(%anoncounter) > 0) {
1.481 raeburn 1349: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
1350: $cdomain,$cname);
1.472 raeburn 1351: }
1.479 raeburn 1352: if (keys(%randtrycounter) > 0) {
1.481 raeburn 1353: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
1354: $cdomain,$cname);
1.479 raeburn 1355: }
1.292 raeburn 1356: }
1.289 albertel 1357:
1.557 raeburn 1358: sub access_status_msg {
1359: my ($mode,$status,$symb,$target,$ipused,$accessmsg) = @_;
1360: my $msg;
1361: if ($target eq 'web') {
1362: if ($status eq 'UNAVAILABLE') {
1363: $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1364: } elsif ($status eq 'NOT_IN_A_SLOT') {
1365: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1366: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1367: ($status eq 'NOTRESERVABLE')) {
1368: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1369: } elsif ($status ne 'NOT_YET_VIEWED') {
1370: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1371: }
1372: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1373: $msg.=&mt('The problem ').$accessmsg;
1374: } elsif ($status eq 'UNCHECKEDOUT') {
1375: $msg.=&checkout_msg();
1376: } elsif ($status eq 'NOT_YET_VIEWED') {
1377: $msg.=&firstaccess_msg($accessmsg,$symb);
1378: } elsif ($status eq 'NOT_IN_A_SLOT') {
1379: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1380: } elsif ($status eq 'RESERVABLE') {
1381: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1382: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1383: '<br />'.
1384: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1385: } elsif ($status eq 'RESERVABLE_LATER') {
1386: $msg.=&mt('Window to make a reservation will open [_1].',
1387: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1388: } elsif ($status eq 'NOTRESERVABLE') {
1389: $msg.=&mt('Not available to make a reservation.');
1390: } elsif ($status eq 'NEED_DIFFERENT_IP') {
1391: if ($ipused) {
1392: $msg.=&mt('You must use the same computer ([_1]) you used when you first accessed this resource using your time/place-based reservation.',"IP: $ipused");
1393: } else {
1394: $msg.=&mt('Each student must use a different computer to access this resource at this time and/or place.').'<br />'.
1395: &mt('Somebody else has already used this particular computer for that purpose.');
1396: }
1397: }
1398: $msg.='<br />';
1399: } elsif ($target eq 'tex') {
1400: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1401: : '\begin{minipage}{\textwidth}';
1402:
1403: $msg ='\noindent \vskip 1 mm '.
1404: $startminipage.'\vskip 0 mm';
1405: if ($status eq 'UNAVAILABLE') {
1406: $msg.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1407: } else {
1408: $msg.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1409: }
1410: }
1411: return $msg;
1412: }
1413:
1414: sub checkin_prompt {
1415: my ($target,$slot_name,$slot,$type) = @_;
1416: my $result;
1417: if ($target eq 'web') {
1418: $result = &Apache::bridgetask::proctor_validation_screen($slot);
1419: } elsif ($target eq 'grade') {
1420: if (!&Apache::bridgetask::proctor_check_auth($slot_name,$slot,$type)) {
1421: $result = &mt('An error occurred during check-in');
1422: }
1423: }
1424: return $result;
1425: }
1426:
1427: sub selfcheckin_resource {
1428: my ($resource_due,$slot_name,$slot,$symb) = @_;
1429: if ($slot_name ne '') {
1430: my $checked_in =
1431: $Apache::lonhomework::history{'resource.0.checkedin'};
1432: if ($checked_in eq '') {
1433: # unproctored slot access, self checkin
1434: my $needsiptied;
1435: if (ref($slot)) {
1436: $needsiptied = $slot->{'iptied'};
1437: }
1438: my $check = &Apache::bridgetask::check_in('problem',undef,undef,
1439: $slot_name,$needsiptied);
1440: if ($check =~ /^error: /) {
1441: &Apache::lonnet::logthis("Error during self-checkin of problem (symb: $symb) using slot: $slot_name");
1442: } else {
1443: $checked_in = $Apache::lonhomework::results{"resource.0.checkedin"};
1444: }
1445: }
1446: if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1447: if ($slot->{'starttime'} < time()) {
1448: if (!$resource_due) {
1449: $resource_due = $slot->{'endtime'};
1450: } elsif ($slot->{'endtime'} < $resource_due) {
1451: $resource_due = $slot->{'endtime'};
1452: }
1453: }
1454: }
1455: }
1456: return $resource_due;
1457: }
1458:
1.65 albertel 1459: sub checkout_msg {
1.211 albertel 1460: my %lt=&Apache::lonlocal::texthash(
1461: 'resource'=>'The resource needs to be checked out',
1462: '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.',
1463: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
1.509 bisitz 1464: 'checkout'=>'Check out Bubblesheet Exam for Viewing',
1465: 'checkout?'=>'Check out Bubblesheet Exam?');
1.352 albertel 1466: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 1467: return (<<ENDCHECKOUT);
1.211 albertel 1468: <h2>$lt{'resource'}</h2>
1469: <p>$lt{'id_expln'}</p>
1.449 bisitz 1470: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 1471: <form name="checkout" method="post" action="$uri">
1.91 albertel 1472: <input type="hidden" name="doescheckout" value="yes" />
1.514 bisitz 1473: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onclick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 1474: </form>
1475: ENDCHECKOUT
1476: }
1477:
1.252 albertel 1478: sub firstaccess_msg {
1.253 albertel 1479: my ($time,$symb)=@_;
1.414 albertel 1480: my $result;
1481: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1482: if ($interval[1] eq 'map') {
1483: my ($map)=&Apache::lonnet::decode_symb($symb);
1484: my $foldertitle=&Apache::lonnet::gettitle($map);
1485:
1486: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 1487: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
1488: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1489: ,$foldertitle,$time)."</p>";
1.414 albertel 1490: } elsif ($interval[1] eq 'course') {
1491: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 1492: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 1493: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 1494: ,$course,$time)."</p>";
1.414 albertel 1495: } else {
1496: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1497: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1498: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1499: ,$title,$time)."</p>";
1.414 albertel 1500: }
1.352 albertel 1501: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1502: my $buttontext = &mt('Show Resource');
1503: my $timertext = &mt('Start Timer?');
1.414 albertel 1504: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1505: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1506: <input type="hidden" name="markaccess" value="yes" />
1.514 bisitz 1507: <input type="button" name="accessbutton" value="$buttontext" onclick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1508: </form>
1509: ENDCHECKOUT
1.414 albertel 1510: return $result;
1.252 albertel 1511: }
1512:
1.204 albertel 1513: sub init_problem_globals {
1514: my ($type)=@_;
1515: #initialize globals
1.308 foxr 1516: # For problems, we start out in part 0 (outside a <part> tag).
1517: # and part 0 is used to describe the main body of the <problem>
1518: #
1.204 albertel 1519: if ($type eq 'problem') {
1520: $Apache::inputtags::part='0';
1521: @Apache::inputtags::partlist=('0');
1.405 albertel 1522: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1523: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1524:
1.266 albertel 1525: } elsif ($type eq 'library') {
1.204 albertel 1526: $Apache::inputtags::part='';
1527: @Apache::inputtags::partlist=();
1.405 albertel 1528: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1529: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1530:
1.304 albertel 1531: } elsif ($type eq 'Task') {
1532: $Apache::inputtags::part='0';
1533: @Apache::inputtags::partlist=('0');
1.405 albertel 1534: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1535: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1536: }
1.477 www 1537: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1538: @Apache::inputtags::responselist = ();
1539: @Apache::inputtags::importlist = ();
1540: @Apache::inputtags::previous=();
1541: @Apache::inputtags::previous_version=();
1.536 raeburn 1542: $Apache::inputtags::leniency='';
1.204 albertel 1543: $Apache::structuretags::printanswer='No';
1544: @Apache::structuretags::whileconds=();
1545: @Apache::structuretags::whilebody=();
1546: @Apache::structuretags::whileline=();
1547: $Apache::lonhomework::scantronmode=0;
1548: undef($Apache::lonhomework::name);
1.358 albertel 1549: undef($Apache::lonhomework::default_type);
1550: undef($Apache::lonhomework::type);
1.204 albertel 1551: }
1552:
1553: sub reset_problem_globals {
1554: my ($type)=@_;
1555: undef(%Apache::lonhomework::history);
1556: undef(%Apache::lonhomework::results);
1557: undef($Apache::inputtags::part);
1.536 raeburn 1558: undef($Apache::inputtags::leniency);
1.498 raeburn 1559: if ($type eq 'Task') {
1560: undef($Apache::inputtags::slot_name);
1.528 raeburn 1561: } elsif ($type eq 'problem') {
1562: undef($Apache::lonhomework::rawrndseed);
1.498 raeburn 1563: }
1.208 albertel 1564: #don't undef this, lonhomework.pm takes care of this, we use this to
1565: #detect if we try to do 2 problems in one file
1566: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1567: undef($Apache::lonhomework::name);
1.358 albertel 1568: undef($Apache::lonhomework::default_type);
1569: undef($Apache::lonhomework::type);
1570: undef($Apache::lonhomework::scantronmode);
1571: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1572: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1573: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1574: }
1575:
1.241 albertel 1576: sub set_problem_state {
1.240 albertel 1577: my ($part)=@_;
1.284 albertel 1578: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1579: $Apache::lonhomework::history{"resource.$part.solved"}=
1580: 'correct_by_student';
1581: }
1582: }
1583:
1.241 albertel 1584: sub get_problem_status {
1585: my ($part)=@_;
1.267 albertel 1586: my $problem_status;
1.284 albertel 1587: if ($env{'request.state'} eq 'construct' &&
1588: defined($env{'form.problemstatus'})) {
1589: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1590: } else {
1591: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1592: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1593: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1594: }
1595: return $problem_status;
1596: }
1597:
1.9 albertel 1598: sub start_problem {
1.326 albertel 1599: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1600:
1.311 foxr 1601: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1602: if (!$Apache::lonxml::metamode) {
1603: &Apache::lonxml::startredirection();
1604: }
1.311 foxr 1605:
1.308 foxr 1606: # Problems don't nest and we don't allow more than one <problem> in
1607: # a .problem file.
1608: #
1.184 albertel 1609: if ( $Apache::inputtags::part ne '' ||
1610: $Apache::lonhomework::parsing_a_problem) {
1611: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1612: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1613: return '';
1614: }
1.184 albertel 1615:
1616: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1617: &init_problem_globals('problem');
1.166 albertel 1618:
1.284 albertel 1619: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1620: $Apache::lonhomework::scantronmode=1;
1621: }
1.161 albertel 1622:
1.159 albertel 1623: if ($target ne 'analyze') {
1.415 raeburn 1624: my $type = &Apache::lonnet::EXT('resource.0.type');
1625: $Apache::lonhomework::type=$type;
1.284 albertel 1626: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1627: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1628: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1629: }
1.332 albertel 1630: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1631: }
1.164 albertel 1632: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1633: my $uri=$env{'request.uri'};
1.159 albertel 1634: if ($uri=~/\.(\w+)$/) {
1635: $Apache::lonhomework::type=$1;
1636: &Apache::lonxml::debug("Using type of $1");
1637: } else {
1638: $Apache::lonhomework::type='problem';
1639: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1640: }
1.87 albertel 1641: }
1.301 albertel 1642: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1643:
1.363 albertel 1644: &initialize_storage();
1.389 albertel 1645: if ($target ne 'analyze'
1646: && $env{'request.state'} eq 'construct') {
1647: &set_problem_state('0');
1648: }
1649:
1.366 albertel 1650: if ($target eq 'web') {
1651: &Apache::lonxml::debug(" grading history ");
1652: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1653: }
1.363 albertel 1654:
1.159 albertel 1655: #added vars to the scripting enviroment
1.213 albertel 1656: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1657: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1658: &Apache::run::run($expression,$safeeval);
1.159 albertel 1659: my $status;
1660: my $accessmsg;
1.508 raeburn 1661: my $resource_due;
1.540 raeburn 1662: my $ipused;
1.159 albertel 1663:
1.343 albertel 1664: my $name= &get_resource_name($parstack,$safeeval);
1.528 raeburn 1665: my ($result,$form_tag_start,$slot_name,$slot,$probpartlist);
1.506 raeburn 1666:
1667: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1668: $target eq 'tex') {
1669: if ($env{'form.markaccess'}) {
1670: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1.539 raeburn 1671: my ($timelimit) = split(/_/,$interval[0]);
1672: &Apache::lonnet::set_first_access($interval[1],$timelimit);
1.506 raeburn 1673: }
1674: }
1675:
1.354 albertel 1676: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1677: || $target eq 'edit') {
1.528 raeburn 1678: ($result,$form_tag_start,$probpartlist) =
1.350 albertel 1679: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1680: $name);
1.552 raeburn 1681: } elsif ((($target eq 'grade') && ($Apache::lonhomework::type eq 'randomizetry')) ||
1682: ($target eq 'answer')) {
1.528 raeburn 1683: my ($symb)= &Apache::lonnet::whichuser();
1684: my $navmap = Apache::lonnavmaps::navmap->new();
1685: if (ref($navmap)) {
1686: my $res = $navmap->getBySymb($symb);
1687: if (ref($res)) {
1688: $probpartlist = $res->parts();
1689: }
1690: }
1.350 albertel 1691: }
1692:
1.552 raeburn 1693: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1694: $target eq 'tex') {
1695:
1696: my ($symb)= &Apache::lonnet::whichuser();
1697: ($status,$accessmsg,$slot_name,$slot,$ipused) =
1698: &Apache::lonhomework::check_slot_access('0','problem',$symb,$probpartlist);
1699: push (@Apache::inputtags::status,$status);
1700: }
1701:
1.284 albertel 1702: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1703:
1.479 raeburn 1704: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1705: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1706: $target eq 'tex') {
1.479 raeburn 1707:
1.159 albertel 1708: #handle rand seed in construction space
1.528 raeburn 1709: my $rndseed=&setup_rndseed($safeeval,$target,$probpartlist);
1710: if (($target eq 'grade') && &Apache::response::submitted()) {
1711: if ($Apache::lonhomework::type eq 'randomizetry') {
1.529 raeburn 1712: $Apache::lonhomework::results{'resource.0.rndseed'}=$rndseed;
1.528 raeburn 1713: } else {
1714: my @parts;
1715: if (ref($probpartlist) eq 'ARRAY') {
1716: @parts = @{$probpartlist};
1717: }
1718: unless (@parts) {
1.529 raeburn 1719: $Apache::lonhomework::results{'resource.0.rndseed'}=$Apache::lonhomework::rawrndseed;
1.528 raeburn 1720: }
1721: }
1722: }
1.367 albertel 1723: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 1724:
1.333 albertel 1725: if ($env{'request.state'} ne "construct" &&
1726: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1727: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1728: $rndseed.'" />'.
1.551 damieng 1729: '<button type="submit" name="resetdata"
1730: value="new_problem_variation">'.&mt('New Problem Variation').'</button>';
1.334 albertel 1731: if (exists($env{'form.username'})) {
1732: $form_tag_start.=
1.164 albertel 1733: '<input type="hidden" name="username"
1.284 albertel 1734: value="'.$env{'form.username'}.'" />';
1.334 albertel 1735: }
1.462 raeburn 1736: if ($env{'request.role.adv'}) {
1737: $form_tag_start.= ' <label class="LC_nobreak">'
1738: .'<input type="checkbox" name="showallfoils"';
1739: if (defined($env{'form.showallfoils'})) {
1740: $form_tag_start.=' checked="checked"';
1741: }
1742: $form_tag_start.= ' /> '
1743: .&mt('Show All Foils')
1744: .'</label>';
1745: }
1.417 www 1746: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1747: $form_tag_start.=&practice_problem_header();
1.417 www 1748: }
1.462 raeburn 1749: $form_tag_start.='<hr />';
1.479 raeburn 1750: } elsif (($env{'request.state'} ne "construct") &&
1751: ($Apache::lonhomework::type eq 'randomizetry') &&
1.546 raeburn 1752: ($status eq 'CAN_ANSWER') &&
1.549 raeburn 1753: ($env{'course.'.$env{'request.course.id'}.'.type'} ne 'Placement') &&
1754: (!$env{'request.role.adv'})) {
1755: # "New Problem Variation Each Try" header suppressed for Placement Tests, unless course personnel.
1.479 raeburn 1756: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1757: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1758: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1759: }
1.324 albertel 1760:
1.159 albertel 1761: my $expression='$external::datestatus="'.$status.'";';
1762: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1763: &Apache::run::run($expression,$safeeval);
1764: &Apache::lonxml::debug("Got $status");
1.324 albertel 1765:
1.159 albertel 1766: if (( $status eq 'CLOSED' ) ||
1767: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1768: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1769: ( $status eq 'BANNED') ||
1.216 albertel 1770: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1771: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1772: ( $status eq 'NOTRESERVABLE') ||
1773: ( $status eq 'RESERVABLE') ||
1774: ( $status eq 'RESERVABLE_LATER') ||
1.540 raeburn 1775: ( $status eq 'INVALID_ACCESS') ||
1776: ( $status eq 'NEED_DIFFERENT_IP')) {
1.326 albertel 1777: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1778: $style);
1.557 raeburn 1779: $result .= &access_status_msg('problem',$status,$symb,$target,$ipused,$accessmsg);
1.324 albertel 1780: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1781: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1782: $style);
1.557 raeburn 1783: $result .= &checkin_prompt($target,$slot_name,$slot,'problem');
1.159 albertel 1784: } elsif ($target eq 'web') {
1.508 raeburn 1785: if ($status eq 'CAN_ANSWER') {
1786: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1787: if ($slot_name ne '') {
1.557 raeburn 1788: $resource_due = &selfcheckin_resource($resource_due,$slot_name,$slot,
1789: $env{'request.symb'});
1.508 raeburn 1790: }
1791: if ($resource_due) {
1792: my $time_left = $resource_due - time();
1793: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1794: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1795: }
1796: }
1797: }
1.368 albertel 1798: $result.="\n $form_tag_start \t".
1.227 albertel 1799: '<input type="hidden" name="submitted" value="yes" />';
1800: # create a page header and exit
1.284 albertel 1801: if ($env{'request.state'} eq "construct") {
1.544 damieng 1802: if ($env{'form.inhibitmenu'} eq 'yes') {
1803: # error messages can be useful in any case
1804: $result.= &Apache::lonxml::message_location();
1805: } else {
1.542 raeburn 1806: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1807: }
1.428 raeburn 1808: if ($Apache::lonhomework::type eq 'practice') {
1.551 damieng 1809: $result.= '<button type="submit" name="resetdata" '.
1810: 'value="new_problem_variation">'.&mt('New Problem Variation').'</button>'.
1811: &practice_problem_header().'<hr />';
1.428 raeburn 1812: }
1.227 albertel 1813: }
1814: # if we are viewing someone else preserve that info
1.284 albertel 1815: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1816: foreach my $field ('symb','courseid','domain','username') {
1817: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1818: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1819: }
1.479 raeburn 1820: foreach my $field ('trial','questiontype') {
1821: if ($env{"form.grade_$field"} ne '') {
1822: $result .= '<input type="hidden" name="grade_'.$field.
1823: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1824: }
1825: }
1.159 albertel 1826: }
1.490 raeburn 1827: if ($env{'form.grade_imsexport'}) {
1828: $result = '';
1829: }
1.159 albertel 1830: } elsif ($target eq 'tex') {
1.319 foxr 1831: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 1832: $result .= &select_metadata_hyphenation();
1.99 sakharuk 1833: }
1.159 albertel 1834: } elsif ($target eq 'edit') {
1.343 albertel 1835: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1836: $Apache::lonxml::warnings_error_header=
1837: &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 1838: my $temp=&Apache::edit::insertlist($target,$token);
1839: $result.=$temp;
1840: } elsif ($target eq 'modified') {
1841: $result=$token->[4];
1842: } else {
1843: # page_start returned a starting result, delete it if we don't need it
1844: $result = '';
1.99 sakharuk 1845: }
1.159 albertel 1846: return $result;
1.9 albertel 1847: }
1848:
1849: sub end_problem {
1.159 albertel 1850: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1851: my $result;
1.310 foxr 1852:
1.321 albertel 1853: if (!$Apache::lonxml::metamode) {
1854: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1855: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1856: }
1.319 foxr 1857:
1858: if ($target eq 'tex') {
1.321 albertel 1859: # Figure out the front matter and replace the
1860: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1861: # this in end_problem because whether or not we display due
1862: # dates depends on whether due dates have already been
1863: # displayed in the problem parts.
1864:
1.319 foxr 1865: my $frontmatter = '';
1866: my $startminipage = '';
1867: if (not $env{'form.problem_split'}=~/yes/) {
1868: $startminipage = '\begin{minipage}{\textwidth}';
1869: }
1870: my $id = $Apache::inputtags::part;
1871: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1872: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.526 raeburn 1873: my @packages = split(/,/,$packages);
1.319 foxr 1874: my $allow_print_points = 0;
1875: foreach my $partial_key (@packages) {
1876: if ($partial_key=~m/^part_0$/) {
1877: $allow_print_points=1;
1878: }
1879: }
1880: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1881: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1882: if (lc($env{'course.'.$env{'request.course.id'}.
1883: '.disableexampointprint'}) eq 'yes') {
1884: $allow_print_points=0;
1885: }
1886: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1887: 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 1888: &clear_required_languages();
1.319 foxr 1889: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1890: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1891:
1892: # Figure out what the due date is and if we need to print
1893: # it in the problem header. We have been logging the
1894: # last due date written to file.
1895:
1896: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1897: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1898: my $duedate_text = &mt('Due date: [_1]'
1899: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1900: my $temp_file;
1901: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1902:
1903: # Figure out what the last printed due date is or set it
1904: # to the epoch if no duedates have been printed.
1905:
1906: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1907: if (-e $filename) {
1908: $temp_file = Apache::File->new($filename);
1909: my @due_file = <$temp_file>;
1910: $due_file_content = $due_file[$#due_file];
1911: chomp $due_file_content;
1912: }
1913:
1914: # We display the due date iff it is not the same as the last
1915: # duedate in problem header ($due_file_content), and
1916: # none of our parts displayed a duedate.
1917: #
1918: my $parts_with_displayduedate;
1919: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1920: $parts_with_displayduedate =
1921: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1922: } else {
1923: $parts_with_displayduedate = 0;
1924: }
1925: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1926: $temp_file = Apache::File->new('>'.$filename);
1927: print $temp_file "$duetime\n";
1928: if (not $env{'request.symb'} =~ m/\.page_/) {
1929: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1930: $frontmatter .= $begin_doc.
1.448 bisitz 1931: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1932: } else {
1933: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1934: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1935: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1936: }
1.319 foxr 1937: }
1938: } else {
1.448 bisitz 1939: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1940: }
1941: } else {
1942: if (not $env{'request.symb'} =~ m/\.page_/) {
1943: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1944: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1945: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1946: }
1.319 foxr 1947: } else {
1.381 albertel 1948: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1949: }
1950: }
1951: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1952: }
1953:
1.159 albertel 1954: my $status=$Apache::inputtags::status['-1'];
1955: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1956: $target eq 'tex') {
1.249 albertel 1957: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1958: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1959: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1960: &Apache::inputtags::grade;
1.324 albertel 1961: } elsif ($status eq 'NEEDS_CHECKIN') {
1962: # no need to grade, and don't want to hide data
1.249 albertel 1963: } else {
1964: # move any submission data to .hidden
1965: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1966: }
1.159 albertel 1967: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1968: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1969: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1970: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1971: # if part is zero, no <part>s existed, so we need show the current
1972: # grading status
1973: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1974: $result.= $gradestatus;
1975: }
1976: if (
1.284 albertel 1977: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1978: ($target eq 'answer') || ($target eq 'tex')
1979: ) {
1.490 raeburn 1980: if (($target ne 'tex') &&
1981: ($env{'form.answer_output_mode'} ne 'tex') &&
1982: (!$env{'form.grade_imsexport'})) {
1.254 www 1983: $result.="</form>";
1.159 albertel 1984: }
1985: if ($target eq 'web') {
1.507 raeburn 1986: #
1987: # Closing </body></html> not added by end_page().
1988: # Added separately at end of this routine, after added
1989: # <script></script> so document will be valid xhtml.
1990: #
1.546 raeburn 1991: my $showdisc = 1;
1.547 raeburn 1992: if (($env{'course.'.$env{'request.course.id'}.'.type'} eq 'Placement') &&
1993: (!$env{'request.role.adv'})) {
1994: # For Placement Tests footer with "Post Discussion" and "Send Feedback" links is suppressed.
1.546 raeburn 1995: $showdisc = 0;
1.547 raeburn 1996: my ($symb)= &Apache::lonnet::whichuser();
1997: if ($symb) {
1998: my $navmap = Apache::lonnavmaps::navmap->new();
1999: if (ref($navmap)) {
2000: my $hastries = &Apache::lonplacementtest::has_tries($symb,$navmap);
2001: # For Placement Tests test status is displayed if this is the last resource in the course
1.549 raeburn 2002: # and there are no tries left
1.547 raeburn 2003: unless ($hastries) {
2004: if (&Apache::lonplacementtest::is_lastres($symb,$navmap)) {
2005: my ($score,$incomplete) =
2006: &Apache::lonplacementtest::check_completion(undef,undef,1);
2007: if (!$incomplete) {
2008: $result .= &Apache::lonplacementtest::showresult(1,1);
2009: } elsif ($incomplete < 100) {
2010: $result.= &Apache::lonplacementtest::showincomplete($incomplete,1);
2011: }
2012: } else {
2013: # For Placement Tests score is displayed if test has just been completed
2014: my ($score,$incomplete) = &Apache::lonplacementtest::check_completion(undef,undef,1);
2015: if (!$incomplete) {
2016: $result.= &Apache::lonplacementtest::showresult(1,1);
2017: }
2018: }
2019: }
2020: }
2021: }
1.546 raeburn 2022: }
2023: $result.= &Apache::loncommon::end_page({'discussion' => $showdisc,
1.507 raeburn 2024: 'notbody' => 1});
1.159 albertel 2025: } elsif ($target eq 'tex') {
1.178 sakharuk 2026: my $endminipage = '';
1.284 albertel 2027: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 2028: $endminipage = '\end{minipage}';
2029: }
1.284 albertel 2030: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 2031: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 2032: } else {
1.262 sakharuk 2033: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 2034: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 2035: $result .= $endminipage.'\end{document} ';
2036: } else {
1.382 albertel 2037: $result .= $endminipage;
1.262 sakharuk 2038: }
1.159 albertel 2039: }
2040: }
2041: }
1.476 www 2042: if ($target eq 'web') {
2043: $result.=&Apache::functionplotresponse::init_script();
2044: }
1.159 albertel 2045: if ($target eq 'grade') {
2046: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
2047: &finalize_storage();
2048: }
1.284 albertel 2049: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
2050: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 2051: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 2052: # normally we get it from above, but in CSTR
1.172 albertel 2053: # we always show answer mode too.
1.159 albertel 2054: }
2055: } elsif ($target eq 'meta') {
2056: if ($Apache::inputtags::part eq '0') {
1.179 albertel 2057: @Apache::inputtags::response=();
1.159 albertel 2058: $result=&Apache::response::mandatory_part_meta;
2059: }
1.559 ! raeburn 2060: $result.=&Apache::response::meta_part_order('problem');
1.258 albertel 2061: $result.=&Apache::response::meta_response_order();
1.159 albertel 2062: } elsif ($target eq 'edit') {
2063: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 2064: $result .= &problem_edit_footer();
1.320 albertel 2065: } elsif ($target eq 'modified') {
2066: $result .= $token->[2];
1.159 albertel 2067: }
1.155 albertel 2068:
1.284 albertel 2069: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 2070: &Apache::inputtags::check_for_duplicate_ids();
2071: }
1.204 albertel 2072:
2073: &reset_problem_globals('problem');
1.159 albertel 2074:
1.502 foxr 2075: #
2076: # This shouild be just above the return so that the
2077: # time put in the javascript is as late as possible in the
2078: # computation:
2079: #
2080: if ($target eq 'web') {
2081: $result .= &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 2082: #
2083: # Closing tags delayed so any <script></script> tags
2084: # not in head can appear inside body, for valid xhtml.
2085: #
2086: $result .= "</body>\n</html>";
1.502 foxr 2087: }
1.159 albertel 2088: return $result;
1.48 albertel 2089: }
2090:
1.108 albertel 2091:
1.48 albertel 2092: sub start_library {
1.159 albertel 2093: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 2094: my ($result,$form_tag_start);
1.371 albertel 2095: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 2096: &init_problem_globals('library');
2097: $Apache::lonhomework::type='problem';
2098: }
1.159 albertel 2099: if ($target eq 'edit') {
1.343 albertel 2100: ($result,$form_tag_start)=
2101: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2102: 'Edit');
2103: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 2104: my $temp=&Apache::edit::insertlist($target,$token);
2105: $result.=$temp;
2106: } elsif ($target eq 'modified') {
2107: $result=$token->[4];
1.340 albertel 2108: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 2109: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 2110: && $env{'request.state'} eq "construct" ) {
1.159 albertel 2111: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 2112: ($result,$form_tag_start)=
2113: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2114: $name);
1.479 raeburn 2115: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 2116: $result.=" \n $form_tag_start".
1.159 albertel 2117: '<input type="hidden" name="submitted" value="yes" />';
2118: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 2119: if ($Apache::lonhomework::type eq 'practice') {
1.551 damieng 2120: $result.= '<button type="submit" name="resetdata" '.
2121: 'value="new_problem_variation">'.&mt('New Problem Variation').'</button>'.
2122: &practice_problem_header().'<hr />';
1.428 raeburn 2123: }
1.159 albertel 2124: }
2125: return $result;
1.48 albertel 2126: }
2127:
2128: sub end_library {
1.159 albertel 2129: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2130: my $result='';
2131: if ($target eq 'edit') {
2132: $result=&problem_edit_footer();
1.371 albertel 2133: } elsif ($target eq 'web'
2134: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
2135: && $env{'request.state'} eq "construct") {
1.349 albertel 2136: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.558 raeburn 2137: } elsif ($target eq 'meta') {
1.559 ! raeburn 2138: $result.=&Apache::response::meta_part_order('library');
1.558 raeburn 2139: $result.=&Apache::response::meta_response_order();
1.159 albertel 2140: }
1.371 albertel 2141: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
2142: &reset_problem_globals('library');
2143: }
1.159 albertel 2144: return $result;
1.197 www 2145: }
2146:
2147: sub start_definetag {
1.326 albertel 2148: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 2149:
2150: my $result;
2151:
2152: my $name = $token->[2]->{'name'};
1.326 albertel 2153: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 2154: if ($target eq 'web') {
2155: if ($name=~/^\//) {
2156: $result=
2157: '<br /><table class="LC_sty_end"><tr><th>'.
2158: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2159: } else {
2160: $result=
2161: '<br /><table class="LC_sty_begin"><tr><th>'.
2162: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2163: }
2164: $skip = &HTML::Entities::encode($skip, '<>&"');
2165: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 2166: }
2167: return $result;
2168: }
2169:
2170: sub end_definetag {
2171: return '';
1.1 albertel 2172: }
2173:
2174: sub start_block {
1.201 albertel 2175: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 2176:
2177: my $result;
1.1 albertel 2178:
1.339 albertel 2179: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2180: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 2181: my $code = $token->[2]->{'condition'};
1.385 albertel 2182: if (defined($code) && $code ne '') {
1.137 albertel 2183: if (!$Apache::lonxml::default_homework_loaded) {
2184: &Apache::lonxml::default_homework_load($safeeval);
2185: }
1.131 albertel 2186: $result = &Apache::run::run($code,$safeeval);
2187: &Apache::lonxml::debug("block :$code: returned :$result:");
2188: } else {
2189: $result='1';
2190: }
2191: if ( ! $result ) {
1.201 albertel 2192: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 2193: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2194: }
2195: $result='';
2196: } elsif ($target eq 'edit') {
2197: $result .=&Apache::edit::tag_start($target,$token);
2198: $result .=&Apache::edit::text_arg('Test Condition:','condition',
2199: $token,40);
2200: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2201: } elsif ($target eq 'modified') {
2202: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2203: $safeeval,'condition');
2204: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 2205: }
1.131 albertel 2206: return $result;
1.1 albertel 2207: }
2208:
2209: sub end_block {
1.167 www 2210: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2211: my $result;
2212: if ($target eq "edit") {
2213: $result.= &Apache::edit::tag_end($target,$token,'');
2214: }
2215: return $result;
2216: }
1.500 foxr 2217: #
2218: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
2219: # ...
2220: # </languageblock>
2221: #
2222: # This declares the intent to provide content that can be rendered in the
2223: # set of languages in the include specificatino but not in the exclude
2224: # specification. If a currently preferred language is in the include list
2225: # the content in the <languageblock>...</languageblock> is rendered
2226: # If the currently preferred language is in the exclude list,
2227: # the content in the <languageblock>..></languageblock is not rendered.
2228: #
2229: # Pathalogical case handling:
2230: # - Include specified, without the preferred language but exclude specified
2231: # also without the preferred langauge results in rendering the block.
2232: # - Exclude specified without include and excluden not containing a
2233: # preferred language renders the block.
2234: # - Include and exclude both specifying the preferred language does not
2235: # render the block.
2236: # - If neither include/exclude is specified, the block gets rendered.
2237: #
2238: # This tag has no effect when target is in {edit, modified}
2239: #
1.167 www 2240: sub start_languageblock {
1.201 albertel 2241: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 2242:
1.500 foxr 2243: my $result = '';
1.167 www 2244:
1.339 albertel 2245: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2246: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 2247: my $include = $token->[2]->{'include'};
2248: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 2249: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 2250:
2251: # This should not even happen, since we should at least have the server language
2252:
2253: if (!$preferred_languages[0]) {
2254: $preferred_languages[0]='en';
2255: }
2256:
2257: # Now loop over all languages in order of preference
2258:
2259: my $render;
1.398 www 2260: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 2261:
2262: # If neither include/nor exlude is present the block is going
2263: # to get rendered.
2264:
1.399 www 2265: my $found=0;
1.500 foxr 2266: $render=1;
2267:
2268: # If include is specified, don't render the block
2269: # unless the preferred language is included in the set.
2270:
1.398 www 2271: if ($include) {
1.500 foxr 2272: $render=0;
1.398 www 2273: foreach my $included_language (split(/\,/,$include)) {
2274: if ($included_language eq $preferred_language) {
1.500 foxr 2275: $render=1;
1.399 www 2276: $found=1;
1.500 foxr 2277: last; # Only need to find the first.
1.398 www 2278: }
2279: }
2280: }
1.500 foxr 2281: # Do we have an exclude argument?
2282: # If so, and one of the languages matches a preferred language
2283: # inhibit rendering the block. Note that in the pathalogical case the
2284: # author has specified a preferred language in both the include and exclude
2285: # attribte exclude is preferred.
2286:
1.398 www 2287: if ($exclude) {
1.500 foxr 2288: $render=1;
1.398 www 2289: foreach my $excluded_language (split(/\,/,$exclude)) {
2290: if ($excluded_language eq $preferred_language) {
1.500 foxr 2291: $render=0;
1.399 www 2292: $found=1;
1.500 foxr 2293: last; # Only need to find the first.
1.398 www 2294: }
2295: }
2296: }
1.500 foxr 2297: if ($found) {
2298: last; # Done on any match of include or exclude.
2299: }
1.398 www 2300: }
1.500 foxr 2301: # If $render not true skip the entire block until </languageblock>
2302: #
2303:
2304: if ( ! $render ) {
1.201 albertel 2305: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
2306: $style);
2307: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2308: }
1.500 foxr 2309: # If $render is true, we've not skipped the contents of the <languageglock>
2310: # and the normal loncapa processing flow will render it as a matter of course.
2311:
1.167 www 2312: } elsif ($target eq 'edit') {
2313: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2314: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 2315: $token,40);
1.211 albertel 2316: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 2317: $token,40);
2318: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2319: } elsif ($target eq 'modified') {
2320: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 2321: $safeeval,'include',
2322: 'exclude');
1.167 www 2323: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2324: }
2325: return $result;
2326: }
2327:
2328: sub end_languageblock {
1.170 www 2329: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2330: my $result;
1.201 albertel 2331: if ($target eq "edit") {
1.170 www 2332: $result.= &Apache::edit::tag_end($target,$token,'');
2333: }
2334: return $result;
2335: }
1.500 foxr 2336: # languagblock specific tags:
2337: {
2338: # For chunks of a resource that has translations, this hash contains
2339: # the translations available indexed by language name.
2340: #
2341:
2342: my %available_texts;
1.170 www 2343:
1.500 foxr 2344: # <translated> starts a block of a resource that has multiple translations.
2345: # See the <lang> tag as well.
2346: # When </translated> is encountered if there is a translation for the
2347: # currently preferred language, that is rendered inthe web/tex/webgrade
2348: # targets. Otherwise, the default text is rendered.
2349: #
2350: # Note that <lang> is only registered for the duration of the
2351: # <translated>...</translated> block
2352: #
2353: # Pathalogical case handling:
2354: # - If there is no <lang> that specifies a 'default' and there is no
2355: # translation that matches a preferred language, nothing is rendered.
2356: # - Nested <translated>...</translated> might be linguistically supported by
2357: # XML due to the stack nature of tag registration(?) however the rendered
2358: # output will be incorrect because there is only one %available_texts
2359: # has and end_translated clears it.
2360: # - Material outside of a <lang>...</lang> block within the
2361: # <translated>...<translated> block won't render either e.g.:
2362: # <translated>
2363: # The following will be in your preferred langauge:
2364: # <lang which='en'>
2365: # This section in english
2366: # </lang>
2367: # <lang which='sgeiso'>
2368: # Hier es ist auf Deutsch.
2369: # </lang>
2370: # <lang which='sfriso'>
2371: # En Francais
2372: # </lang>
2373: # </translated>
2374: #
2375: # The introductory text prior to the first <lang> tag is not rendered.
2376: #
1.397 albertel 2377: sub start_translated {
2378: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2379: &Apache::lonxml::register('Apache::structuretags',('lang'));
2380: undef(%available_texts);
2381: }
2382:
2383: sub end_translated {
2384: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2385: my $result;
2386: #show the translation on viewable targets
2387: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
2388: # or non-viewable targets, if it's embedded in something that
2389: # wants the output
2390: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
2391: && &Apache::lonxml::in_redirection() ) ) {
2392: my @possibilities = keys(%available_texts);
2393: my $which =
2394: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 2395: if ($target eq 'tex') {
2396: $result = &select_hyphenation($which);
2397: }
2398: $result .= $available_texts{$which};
2399: if ($target eq 'tex') {
2400: $result .= &select_metadata_hyphenation(); # Restore original language.
2401: }
1.397 albertel 2402: }
2403: undef(%available_texts);
2404: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
2405: return $result;
2406: }
2407:
1.500 foxr 2408: # <lang [which='language-name'] [other='lang1,lang2...']>
2409: # Specifies that the block contained within it is a translation
2410: # for a specific language specified by the 'which' attribute. The
2411: # 'other' attribute can be used by itself or in conjunction with
2412: # which to specify this tag _may_ be used as a translation for some
2413: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
2414: # specifying that the block provides a translation for US (primary)
2415: # Canadian, Australian and UK Englush.
2416: #
2417: # Comment: this seems a bit silly why not just support a list of languages
2418: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
2419: #
2420: # Effect:
2421: # The material within the <lang>..</lang> block is stored in the
2422: # specified set of $available_texts hash entries, the appropriate one
2423: # is selected at </translated> time.
2424: #
2425: # Pathalogical case handling:
2426: # If a language occurs multiple times within a <translated> block,
2427: # only the last one is rendered e.g.:
2428: #
2429: # <translated>
2430: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
2431: # Red green color blindness is quite common affecting about 7.8% of
2432: # the male population, but onloy about .65% of the female population.
2433: # </lang>
2434: # Red green colour blindness is quite common affecting about 7.8% of
2435: # the male population, but onloy about .65% of the female population.
2436: # <lang which='seniso', other='senisoCA,senisoAU'>
2437: # </translated>
2438: #
2439: # renders the correct spelling of color (colour) for people who have specified
2440: # a preferred language that is one of the British Commonwealth languages
2441: # even though those are also listed as valid selections for the US english
2442: # <lang> block.
2443: #
1.397 albertel 2444: sub start_lang {
2445: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2446: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2447: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2448: &Apache::lonxml::startredirection();
2449: }
2450: return '';
2451: }
2452:
2453: sub end_lang {
2454: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2455: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2456: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2457: my $result = &Apache::lonxml::endredirection();
2458: my $which = &Apache::lonxml::get_param('which',$parstack,
2459: $safeeval);
1.431 raeburn 2460: if ($which=~/\w/) {
2461: $available_texts{$which} = $result;
2462: }
2463: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
2464: $safeeval);
2465: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
2466: if ($language=~/\w/) {
2467: $available_texts{$language} = $result;
2468: }
1.427 bisitz 2469: }
2470:
1.397 albertel 2471: }
2472: return '';
2473: }
1.500 foxr 2474: } # end langauge block specific tags.
2475:
1.397 albertel 2476:
1.170 www 2477: sub start_instructorcomment {
1.201 albertel 2478: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 2479:
2480: my $result;
2481:
1.339 albertel 2482: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2483: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 2484: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 2485: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 2486: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
2487: $parser,$style);
1.170 www 2488: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2489: }
2490: $result='';
2491: } elsif ($target eq 'edit') {
2492: $result .=&Apache::edit::tag_start($target,$token);
2493: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2494: }
2495: return $result;
2496: }
2497:
2498: sub end_instructorcomment {
1.159 albertel 2499: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2500: my $result;
2501: if ($target eq "edit") {
2502: $result.= &Apache::edit::tag_end($target,$token,'');
2503: }
2504: return $result;
1.4 tsai 2505: }
2506:
2507: sub start_while {
1.326 albertel 2508: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2509:
1.160 albertel 2510: my $result;
1.339 albertel 2511: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2512: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2513: my $code = $token->[2]->{'condition'};
1.4 tsai 2514:
1.160 albertel 2515: push( @Apache::structuretags::whileconds, $code);
2516: if (!$Apache::lonxml::default_homework_loaded) {
2517: &Apache::lonxml::default_homework_load($safeeval);
2518: }
2519: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2520: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2521: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2522: push( @Apache::structuretags::whileline, $token->[5]);
2523: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2524: if ( $result ) {
2525: &Apache::lonxml::newparser($parser,\$bodytext);
2526: }
2527: } elsif ($target eq 'edit') {
2528: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2529: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2530: $token,40);
2531: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2532: } elsif ($target eq 'modified') {
2533: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2534: $safeeval,'condition');
2535: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2536: }
1.160 albertel 2537: return $result;
1.4 tsai 2538: }
2539:
2540: sub end_while {
1.159 albertel 2541: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2542: my $result;
2543:
1.339 albertel 2544: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2545: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2546: my $code = pop(@Apache::structuretags::whileconds);
2547: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2548: my $line = pop(@Apache::structuretags::whileline);
2549: my $return = &Apache::run::run($code,$safeeval);
2550: my $starttime=time;
2551: my $error=0;
2552: while ($return) {
2553: if (time-$starttime >
2554: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2555: $return = 0; $error=1; next;
1.161 albertel 2556: }
2557: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2558: if ($target eq 'grade' || $target eq 'answer' ||
2559: $target eq 'analyze') {
2560: # grade/answer/analyze should produce no output but if we
2561: # are redirecting, the redirecter should know what to do
2562: # with the output
2563: if (!$Apache::lonxml::redirection) { undef($result); }
2564: }
1.161 albertel 2565: $return = &Apache::run::run($code,$safeeval);
2566: }
1.516 bisitz 2567: if ($error) {
2568: &Apache::lonxml::error(
2569: '<pre>'
2570: .&mt('Code ran too long. It ran for more than [_1] seconds.',
2571: $Apache::lonnet::perlvar{'lonScriptTimeout'})
2572: .&mt('This occurred while running <while> on line [_1].',
2573: $line)
2574: .'</pre>');
2575: }
1.160 albertel 2576: } elsif ($target eq "edit") {
2577: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2578: }
1.160 albertel 2579: return $result;
1.1 albertel 2580: }
1.6 tsai 2581:
1.160 albertel 2582: # <randomlist show="1">
1.6 tsai 2583: # <tag1>..</tag1>
2584: # <tag2>..</tag2>
2585: # <tag3>..</tag3>
1.160 albertel 2586: # ...
1.6 tsai 2587: # </randomlist>
2588: sub start_randomlist {
1.326 albertel 2589: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2590: my $result;
1.339 albertel 2591: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2592: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2593: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2594: my $b_parser= HTML::LCParser->new(\$body);
2595: $b_parser->xml_mode(1);
2596: $b_parser->marked_sections(1);
1.159 albertel 2597: my $b_tok;
2598: my @randomlist;
2599: my $list_item;
2600: while($b_tok = $b_parser->get_token() ) {
2601: if($b_tok->[0] eq 'S') { # start tag
2602: # get content of the tag until matching end tag
2603: # get all text upto the matching tag
2604: # and push the content into @randomlist
2605: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2606: $b_parser);
2607: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2608: push(@randomlist,$list_item);
2609: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2610: # $list_item</b>";
2611: }
2612: if($b_tok->[0] eq 'T') { # text
2613: # what to do with text in between tags?
2614: # print "<b>TEXT $b_tok->[1]</b><br />";
2615: }
2616: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2617: # print "<b>END-TAG $b_tok->[1]</b><br />";
2618: # }
2619: }
1.303 albertel 2620: if (@randomlist) {
2621: my @idx_arr = (0 .. $#randomlist);
1.555 raeburn 2622: if ($env{'form.code_for_randomlist'}) {
2623: &Apache::structuretags::shuffle(\@idx_arr,$target);
2624: undef($env{'form.code_for_randomlist'});
2625: } else {
2626: &Apache::structuretags::shuffle(\@idx_arr);
2627: }
1.303 albertel 2628: my $bodytext = '';
2629: my $show=$#randomlist;
2630: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2631: $showarg--;
2632: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2633: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2634: my @currlist;
2635: my $part = $Apache::inputtags::part;
2636: if ($part ne '') {
2637: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2638: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2639: if (!(grep(/^\Q$part\E$/,@currlist))) {
2640: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2641: }
2642: } else {
2643: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2644: }
2645: }
2646: }
1.526 raeburn 2647: for my $i (0 .. $show) {
2648: $bodytext .= "$randomlist[ $idx_arr[$i] ]";
1.303 albertel 2649: }
2650: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2651: }
2652: } elsif ($target eq 'edit' ) {
2653: $result .=&Apache::edit::tag_start($target,$token);
2654: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2655: $token,5);
2656: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2657: } elsif ($target eq 'modified' ) {
2658: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2659: $safeeval,'show');
2660: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2661: }
2662: return $result;
1.7 tsai 2663: }
2664:
2665: sub shuffle {
1.555 raeburn 2666: my ($a,$target) = @_;
1.7 tsai 2667: my $i;
1.303 albertel 2668: if (ref($a) eq 'ARRAY' && @$a) {
1.555 raeburn 2669: &Apache::response::pushrandomnumber(undef,$target);
1.159 albertel 2670: for($i=@$a;--$i;) {
2671: my $j=int(&Math::Random::random_uniform() * ($i+1));
2672: next if $i == $j;
2673: @$a[$i,$j] = @$a[$j,$i];
2674: }
1.251 albertel 2675: &Apache::response::poprandomnumber();
1.7 tsai 2676: }
1.6 tsai 2677: }
2678:
2679: sub end_randomlist {
1.159 albertel 2680: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2681: my $result;
2682: if ($target eq 'edit' ) {
2683: $result=&Apache::edit::tag_end($target,$token,
2684: 'End Randomly Parsed Block');
2685: }
2686: return $result;
1.6 tsai 2687: }
2688:
1.283 albertel 2689: sub ordered_show_check {
2690: my $last_part=$Apache::inputtags::partlist[-2];
2691: my $in_order=
2692: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2693: my $in_order_show=1;
2694: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2695: $in_order_show=&Apache::response::check_status($last_part);
2696: }
2697: return $in_order_show;
2698: }
2699:
1.469 www 2700:
2701: sub start_startpartmarker {
2702: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2703: my $result='';
2704: if ($target eq 'edit') {
2705: $result=&Apache::edit::tag_start($target,$token);
2706: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2707: $result.=&Apache::edit::end_table();
2708:
2709: }
2710: return $result;
2711: }
2712:
2713: sub end_startpartmarker {
2714: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2715: my @result;
2716: if ($target eq 'edit') { $result[1]='no'; }
2717: return @result;
2718: }
2719:
2720: sub start_endpartmarker {
2721: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2722: my $result='';
2723: if ($target eq 'edit') {
2724: $result=&Apache::edit::tag_start($target,$token);
2725: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2726: $result.=&Apache::edit::end_table();
2727:
2728: }
2729: return $result;
2730: }
2731:
2732: sub end_endpartmarker {
2733: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2734: my @result;
2735: if ($target eq 'edit') { $result[1]='no'; }
2736: return @result;
2737: }
2738:
2739:
2740:
2741:
2742:
1.11 albertel 2743: sub start_part {
1.326 albertel 2744: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2745: if (!$Apache::lonxml::metamode) {
2746: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2747: # duedates.
2748: }
1.159 albertel 2749: my $result='';
1.386 albertel 2750: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2751: $Apache::inputtags::part=$id;
1.177 albertel 2752: push(@Apache::inputtags::partlist,$id);
1.536 raeburn 2753: $Apache::inputtags::leniency='';
1.177 albertel 2754: @Apache::inputtags::response=();
1.159 albertel 2755: @Apache::inputtags::previous=();
2756: @Apache::inputtags::previous_version=();
1.405 albertel 2757: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2758: &Apache::response::reset_params();
2759:
1.159 albertel 2760: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2761: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2762: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.528 raeburn 2763: if ($Apache::lonhomework::type eq 'randomizetry') {
2764: my $rndseed=&setup_rndseed($safeeval,$target);
2765: if (($target eq 'grade') && &Apache::response::submitted()) {
1.529 raeburn 2766: $Apache::lonhomework::results{"resource.$id.rndseed"}=$rndseed;
1.528 raeburn 2767: }
2768: } elsif (($target eq 'grade') && &Apache::response::submitted()) {
1.529 raeburn 2769: $Apache::lonhomework::results{"resource.$id.rndseed"}=$Apache::lonhomework::rawrndseed;
1.528 raeburn 2770: }
1.283 albertel 2771: my $in_order_show=&ordered_show_check();
1.214 albertel 2772: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2773: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2774: &Apache::run::run($expression,$safeeval);
1.159 albertel 2775:
2776: if ($target eq 'meta') {
1.224 www 2777: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2778: return &Apache::response::mandatory_part_meta.
2779: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2780: } elsif ($target eq 'web' || $target eq 'grade' ||
2781: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2782: if ($hidden || !$in_order_show) {
1.326 albertel 2783: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2784: } else {
2785: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2786: push (@Apache::inputtags::status,$status);
2787: my $expression='$external::datestatus="'.$status.'";';
2788: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2789: &Apache::run::run($expression,$safeeval);
1.284 albertel 2790: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2791: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2792: }
1.216 albertel 2793: if (( $status eq 'CLOSED' ) ||
2794: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2795: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2796: ( $status eq 'BANNED') ||
2797: ( $status eq 'UNAVAILABLE') ||
2798: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2799: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2800: $style);
1.159 albertel 2801: if ( $target eq "web" ) {
1.211 albertel 2802: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2803: } elsif ( $target eq 'tex' ) {
1.284 albertel 2804: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2805: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2806: } else {
1.211 albertel 2807: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2808: }
1.159 albertel 2809: }
2810: } else {
2811: if ($target eq 'tex') {
1.284 albertel 2812: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2813: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2814: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2815: } else {
2816: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2817: }
1.195 sakharuk 2818: }
1.159 albertel 2819: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2820: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.526 raeburn 2821: my @allkeys = split(/,/,$allkeys);
1.222 sakharuk 2822: my $allow_print_points = 0;
2823: foreach my $partial_key (@allkeys) {
1.230 albertel 2824: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2825: if ($1 ne '0') {$allow_print_points=1;}
2826: }
2827: }
1.275 albertel 2828: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2829: if (defined($maxtries) && $maxtries < 0) {
2830: $allow_print_points=0;
2831: }
1.302 albertel 2832: if (lc($env{'course.'.$env{'request.course.id'}.
2833: '.disableexampointprint'}) eq 'yes') {
2834: $allow_print_points=0;
2835: }
1.463 foxr 2836: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2837: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2838:
2839: }
1.233 www 2840: } elsif ($target eq 'web') {
1.479 raeburn 2841: if ($status eq 'CAN_ANSWER') {
2842: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2843: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
2844: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
2845: my $num = scalar(@Apache::inputtags::partlist)-1;
2846: if ($probrandomize eq 'randomizetry') {
2847: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
2848: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2849: } else {
2850: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2851: if ($probrandtries ne $reqtries) {
2852: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2853: }
2854: }
2855: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
2856: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2857: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2858: }
2859: }
1.475 raeburn 2860: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2861: }
2862: }
2863: }
2864: } elsif ($target eq 'edit') {
2865: $result.=&Apache::edit::tag_start($target,$token);
2866: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2867: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2868: ' '.
2869: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2870: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2871: } elsif ($target eq 'modified') {
2872: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2873: $safeeval,'id','display');
1.159 albertel 2874: if ($constructtag) {
1.225 albertel 2875: #limiting ids to only letters numbers, and space
1.224 www 2876: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2877: $result = &Apache::edit::rebuild_tag($token);
2878: }
2879: }
2880: return $result;
1.11 albertel 2881: }
2882:
2883: sub end_part {
1.159 albertel 2884: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2885: &Apache::lonxml::debug("in end_part $target ");
2886: my $status=$Apache::inputtags::status['-1'];
2887: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2888: my $in_order_show=&ordered_show_check();
1.321 albertel 2889: my $result;
2890: if (!$Apache::lonxml::metamode) {
2891: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2892: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2893: }
1.312 albertel 2894: if ($target eq 'grade') {
1.249 albertel 2895: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2896: !$hidden && $in_order_show) {
1.311 foxr 2897: $result.=&Apache::inputtags::grade;
1.249 albertel 2898: } else {
2899: # move any submission data to .hidden
2900: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2901: }
1.283 albertel 2902: } elsif (($target eq 'web' || $target eq 'tex') &&
2903: !$hidden && $in_order_show) {
1.159 albertel 2904: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2905: $target);
1.490 raeburn 2906: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2907: ($env{'form.grade_imsexport'})) {
1.212 albertel 2908: $gradestatus='';
2909: }
1.311 foxr 2910: $result.=$gradestatus;
1.265 sakharuk 2911: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2912: } elsif ($target eq 'edit') {
1.311 foxr 2913: $result.=&Apache::edit::end_table();
1.322 albertel 2914: } elsif ($target eq 'modified') {
2915: $result .= $token->[2];
1.159 albertel 2916: }
2917: pop @Apache::inputtags::status;
2918: $Apache::inputtags::part='';
1.536 raeburn 2919: $Apache::inputtags::leniency='';
1.295 albertel 2920: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2921: return $result;
1.11 albertel 2922: }
1.1 albertel 2923:
1.25 albertel 2924: sub start_preduedate {
1.326 albertel 2925: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2926: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2927: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2928: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2929: if (!$Apache::lonhomework::scantronmode &&
2930: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2931: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2932: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2933: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2934: }
1.24 albertel 2935: }
1.159 albertel 2936: return '';
1.24 albertel 2937: }
2938:
1.25 albertel 2939: sub end_preduedate {
1.159 albertel 2940: return '';
1.24 albertel 2941: }
2942:
1.369 foxr 2943: # In all the modes where <postanswerdate> text is
2944: # displayable, all we do is eat up the text between the start/stop
2945: # tags if the conditions are not right to display it.
1.25 albertel 2946: sub start_postanswerdate {
1.326 albertel 2947: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2948: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2949: &Apache::lonnet::allowed('pav',
2950: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2951: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2952: $target eq 'tex' ) {
1.300 albertel 2953: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2954: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2955: (($target eq 'tex') && !$pav)) {
1.326 albertel 2956: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2957: }
2958: }
2959: return '';
1.24 albertel 2960: }
2961:
1.25 albertel 2962: sub end_postanswerdate {
1.159 albertel 2963: return '';
1.24 albertel 2964: }
2965:
1.25 albertel 2966: sub start_notsolved {
1.326 albertel 2967: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2968: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2969: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2970: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2971: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2972: if ($gradestatus =~ /^correct/ &&
2973: &Apache::response::show_answer()) {
1.159 albertel 2974: &Apache::lonxml::debug("skipping");
1.326 albertel 2975: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2976: }
1.24 albertel 2977: }
1.159 albertel 2978: return '';
1.24 albertel 2979: }
2980:
1.25 albertel 2981: sub end_notsolved {
1.159 albertel 2982: return '';
1.24 albertel 2983: }
2984:
2985: sub start_solved {
1.326 albertel 2986: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2987: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2988: $target eq 'tex') {
2989: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2990: if ($gradestatus !~ /^correct/ ||
2991: !&Apache::response::show_answer()) {
1.326 albertel 2992: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2993: }
1.24 albertel 2994: }
1.159 albertel 2995: return '';
1.24 albertel 2996: }
2997:
2998: sub end_solved {
1.248 albertel 2999: return '';
3000: }
3001:
3002: sub start_problemtype {
1.326 albertel 3003: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 3004: my $result;
1.339 albertel 3005: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
3006: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 3007: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
3008: if (!defined($mode)) { $mode='show'; }
3009: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
3010: my $found=0;
3011: foreach my $type (split(',',$for)) {
3012: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
3013: }
3014: if ($mode eq 'show' && !$found) {
1.326 albertel 3015: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 3016: }
3017: if ($mode eq 'hide' && $found) {
1.326 albertel 3018: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 3019: }
3020: } elsif ($target eq 'edit') {
3021: $result .=&Apache::edit::tag_start($target,$token);
3022: $result.=&Apache::edit::select_arg('Mode:','mode',
3023: [['show','Show'],
3024: ['hide','Hide']]
3025: ,$token);
3026: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.511 bisitz 3027: [ ['exam','Bubblesheet Exam/Quiz Problem'],
1.248 albertel 3028: ['survey','Survey'],
1.465 raeburn 3029: ['surveycred','Survey (with credit)'],
3030: ['anonsurvey','Anonymous Survey'],
3031: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 3032: ['problem','Homework Problem'],
1.479 raeburn 3033: ['practice','Practice Problem'],
3034: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 3035: ,$token);
3036: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
3037: } elsif ($target eq 'modified') {
3038: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
3039: $safeeval,'mode','for');
3040: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
3041: }
3042: return $result;
3043: }
3044:
3045: sub end_problemtype {
1.159 albertel 3046: return '';
1.24 albertel 3047: }
1.34 albertel 3048:
3049: sub start_startouttext {
1.159 albertel 3050: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3051: my @result=(''.'');
3052: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 3053:
3054: my $nesting =
3055: &Apache::lonxml::set_state('outtext',
3056: &Apache::lonxml::get_state('outtext')+1);
3057: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
3058: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
3059: }
1.159 albertel 3060: return (@result);
1.34 albertel 3061: }
1.159 albertel 3062:
1.34 albertel 3063: sub end_startouttext {
1.326 albertel 3064: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 3065: my $result='';
3066: my $text='';
3067: if ($target eq 'edit') {
1.424 foxr 3068: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 3069: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.527 golterma 3070: $result.=&Apache::edit::start_table($token)."<tr><td>".&Apache::loncommon::insert_folding_button()
3071: ." ".&mt('Text Block')."</td>"
1.438 bisitz 3072: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 3073: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 3074: .'</span></td>'
1.550 raeburn 3075: .'<td><span id="math_'.$areaid.'">';
3076: if ($env{'environment.nocodemirror'}) {
3077: $result.=&Apache::lonhtmlcommon::dragmath_button($areaid,1);
3078: } else {
3079: $result.=' ';
3080: }
3081: $result.='</span></td>'
1.474 raeburn 3082: .'<td>'
3083: .&Apache::edit::insertlist($target,$token)
3084: .'</td>'
1.515 golterma 3085: .'<td class="LC_edit_problem_latexhelper">' .
1.474 raeburn 3086: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 3087: &Apache::edit::end_row().
1.362 albertel 3088: &Apache::edit::start_spanning_row()."\n".
1.255 www 3089: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 3090: }
3091: if ($target eq 'modified') {
1.219 albertel 3092: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 3093: }
3094: if ($target eq 'tex') {
3095: $result .= '\noindent ';
3096: }
3097: return $result;
1.34 albertel 3098: }
1.159 albertel 3099:
1.34 albertel 3100: sub start_endouttext {
1.159 albertel 3101: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3102: my $result='';
3103: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
3104: if ($target eq "modified") {
3105: $result='<endouttext />'.
1.377 albertel 3106: &Apache::edit::handle_insertafter('startouttext');
3107: }
1.404 albertel 3108:
3109: my $nesting =
3110: &Apache::lonxml::set_state('outtext',
3111: &Apache::lonxml::get_state('outtext')-1);
3112: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
3113: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
3114: &Apache::lonxml::set_state('outtext', 0);
3115: }
1.159 albertel 3116: return $result;
1.34 albertel 3117: }
1.159 albertel 3118:
1.34 albertel 3119: sub end_endouttext {
1.159 albertel 3120: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3121: my @result=('','');
3122: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
3123: return (@result);
1.34 albertel 3124: }
1.159 albertel 3125:
1.45 albertel 3126: sub delete_startouttext {
1.326 albertel 3127: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
3128: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 3129: my $text=$$parser['-1']->get_text("/endouttext");
3130: my $ntoken=$$parser['-1']->get_token();
3131: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
3132: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
3133: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
3134: # they did the last time round
3135: &Apache::lonxml::increasedepth($ntoken);
3136: &Apache::lonxml::decreasedepth($ntoken);
3137: return 1;
1.193 www 3138: }
3139:
3140: sub start_simpleeditbutton {
3141: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3142: my $result='';
1.284 albertel 3143: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 3144: ($target eq 'web') &&
1.330 albertel 3145: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 3146: my $url=$env{'request.noversionuri'};
1.193 www 3147: $url=~s/\?.*$//;
1.367 albertel 3148: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 3149: # Warning makes more sense and is more important on edit screen
1.442 bisitz 3150: # $result='<p class="LC_warning">'
3151: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
3152: # .&Apache::loncommon::help_open_topic('Caching')
3153: # .'</p>';
1.486 www 3154: $result.=&Apache::loncommon::head_subbox(
3155: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 3156: .&Apache::lonhtmlcommon::add_item_funclist(
3157: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
3158: .&mt('Edit').'</a>')
1.486 www 3159: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 3160:
1.193 www 3161: }
3162: return $result;
3163: }
3164:
3165: sub end_simpleeditbutton {
3166: return '';
1.45 albertel 3167: }
1.34 albertel 3168:
1.428 raeburn 3169: sub practice_problem_header {
1.556 raeburn 3170: return '<h3 class="LC_info">'.&mt('Practice Problem').'</h3>'.
1.428 raeburn 3171: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
3172: '</span>';
3173: }
3174:
1.479 raeburn 3175: sub randomizetry_problem_header {
3176: my ($problemstatus,$reqtries) = @_;
3177: my ($header,$text);
3178: if ($reqtries > 1) {
3179: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
3180: if (($problemstatus eq 'no') ||
3181: ($problemstatus eq 'no_feedback_ever')) {
3182: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3183: } else {
3184: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3185: }
3186: } else {
3187: $header = &mt('New Problem Variation Each Try');
3188: if (($problemstatus eq 'no') ||
3189: ($problemstatus eq 'no_feedback_ever')) {
3190: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
3191:
3192: } else {
3193: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
3194: }
3195: }
1.556 raeburn 3196: return '<h3 class="LC_info">'.$header.'</h3>'.
1.479 raeburn 3197: '<span class="LC_info">'.$text.'</span><hr />';
3198: }
3199:
3200: sub randomizetry_part_header {
3201: my ($problemstatus,$reqtries,$num) = @_;
3202: my ($header,$text);
3203: if ($reqtries eq 'none') {
3204: $header = &mt('No Question Variation');
3205: $text = &mt('For this question there will no new variation after a try.');
3206: } elsif ($reqtries > 1) {
3207: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
3208: if (($problemstatus eq 'no') ||
3209: ($problemstatus eq 'no_feedback_ever')) {
3210: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3211: } else {
3212: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3213: }
3214: } else {
3215: $header = &mt('New Question Variation For Each Try');
3216: if (($problemstatus eq 'no') ||
3217: ($problemstatus eq 'no_feedback_ever')) {
3218: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
3219: } else {
3220: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
3221: }
3222: }
3223: my $output;
3224: if ($num > 1) {
3225: $output .= '<hr />';
3226: }
1.556 raeburn 3227: $output .= '<h4 class="LC_info">'.$header.'</h4>'.
1.479 raeburn 3228: '<span class="LC_info">'.$text.'</span><br /><br />';
3229: return $output;
3230: }
3231:
1.1 albertel 3232: 1;
3233: __END__
1.435 jms 3234:
3235: =pod
3236:
3237: =back
3238:
3239: =cut
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