Annotation of loncom/homework/structuretags.pm, revision 1.555
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.555 ! raeburn 4: # $Id: structuretags.pm,v 1.554 2017/02/06 19:54:19 damieng 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:
1.65 albertel 1358: sub checkout_msg {
1.211 albertel 1359: my %lt=&Apache::lonlocal::texthash(
1360: 'resource'=>'The resource needs to be checked out',
1361: '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.',
1362: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
1.509 bisitz 1363: 'checkout'=>'Check out Bubblesheet Exam for Viewing',
1364: 'checkout?'=>'Check out Bubblesheet Exam?');
1.352 albertel 1365: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 1366: return (<<ENDCHECKOUT);
1.211 albertel 1367: <h2>$lt{'resource'}</h2>
1368: <p>$lt{'id_expln'}</p>
1.449 bisitz 1369: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 1370: <form name="checkout" method="post" action="$uri">
1.91 albertel 1371: <input type="hidden" name="doescheckout" value="yes" />
1.514 bisitz 1372: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onclick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 1373: </form>
1374: ENDCHECKOUT
1375: }
1376:
1.252 albertel 1377: sub firstaccess_msg {
1.253 albertel 1378: my ($time,$symb)=@_;
1.414 albertel 1379: my $result;
1380: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1381: if ($interval[1] eq 'map') {
1382: my ($map)=&Apache::lonnet::decode_symb($symb);
1383: my $foldertitle=&Apache::lonnet::gettitle($map);
1384:
1385: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 1386: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
1387: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1388: ,$foldertitle,$time)."</p>";
1.414 albertel 1389: } elsif ($interval[1] eq 'course') {
1390: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 1391: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 1392: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 1393: ,$course,$time)."</p>";
1.414 albertel 1394: } else {
1395: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1396: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1397: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1398: ,$title,$time)."</p>";
1.414 albertel 1399: }
1.352 albertel 1400: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1401: my $buttontext = &mt('Show Resource');
1402: my $timertext = &mt('Start Timer?');
1.414 albertel 1403: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1404: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1405: <input type="hidden" name="markaccess" value="yes" />
1.514 bisitz 1406: <input type="button" name="accessbutton" value="$buttontext" onclick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1407: </form>
1408: ENDCHECKOUT
1.414 albertel 1409: return $result;
1.252 albertel 1410: }
1411:
1.204 albertel 1412: sub init_problem_globals {
1413: my ($type)=@_;
1414: #initialize globals
1.308 foxr 1415: # For problems, we start out in part 0 (outside a <part> tag).
1416: # and part 0 is used to describe the main body of the <problem>
1417: #
1.204 albertel 1418: if ($type eq 'problem') {
1419: $Apache::inputtags::part='0';
1420: @Apache::inputtags::partlist=('0');
1.405 albertel 1421: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1422: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1423:
1.266 albertel 1424: } elsif ($type eq 'library') {
1.204 albertel 1425: $Apache::inputtags::part='';
1426: @Apache::inputtags::partlist=();
1.405 albertel 1427: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1428: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1429:
1.304 albertel 1430: } elsif ($type eq 'Task') {
1431: $Apache::inputtags::part='0';
1432: @Apache::inputtags::partlist=('0');
1.405 albertel 1433: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1434: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1435: }
1.477 www 1436: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1437: @Apache::inputtags::responselist = ();
1438: @Apache::inputtags::importlist = ();
1439: @Apache::inputtags::previous=();
1440: @Apache::inputtags::previous_version=();
1.536 raeburn 1441: $Apache::inputtags::leniency='';
1.204 albertel 1442: $Apache::structuretags::printanswer='No';
1443: @Apache::structuretags::whileconds=();
1444: @Apache::structuretags::whilebody=();
1445: @Apache::structuretags::whileline=();
1446: $Apache::lonhomework::scantronmode=0;
1447: undef($Apache::lonhomework::name);
1.358 albertel 1448: undef($Apache::lonhomework::default_type);
1449: undef($Apache::lonhomework::type);
1.204 albertel 1450: }
1451:
1452: sub reset_problem_globals {
1453: my ($type)=@_;
1454: undef(%Apache::lonhomework::history);
1455: undef(%Apache::lonhomework::results);
1456: undef($Apache::inputtags::part);
1.536 raeburn 1457: undef($Apache::inputtags::leniency);
1.498 raeburn 1458: if ($type eq 'Task') {
1459: undef($Apache::inputtags::slot_name);
1.528 raeburn 1460: } elsif ($type eq 'problem') {
1461: undef($Apache::lonhomework::rawrndseed);
1.498 raeburn 1462: }
1.208 albertel 1463: #don't undef this, lonhomework.pm takes care of this, we use this to
1464: #detect if we try to do 2 problems in one file
1465: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1466: undef($Apache::lonhomework::name);
1.358 albertel 1467: undef($Apache::lonhomework::default_type);
1468: undef($Apache::lonhomework::type);
1469: undef($Apache::lonhomework::scantronmode);
1470: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1471: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1472: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1473: }
1474:
1.241 albertel 1475: sub set_problem_state {
1.240 albertel 1476: my ($part)=@_;
1.284 albertel 1477: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1478: $Apache::lonhomework::history{"resource.$part.solved"}=
1479: 'correct_by_student';
1480: }
1481: }
1482:
1.241 albertel 1483: sub get_problem_status {
1484: my ($part)=@_;
1.267 albertel 1485: my $problem_status;
1.284 albertel 1486: if ($env{'request.state'} eq 'construct' &&
1487: defined($env{'form.problemstatus'})) {
1488: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1489: } else {
1490: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1491: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1492: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1493: }
1494: return $problem_status;
1495: }
1496:
1.9 albertel 1497: sub start_problem {
1.326 albertel 1498: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1499:
1.311 foxr 1500: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1501: if (!$Apache::lonxml::metamode) {
1502: &Apache::lonxml::startredirection();
1503: }
1.311 foxr 1504:
1.308 foxr 1505: # Problems don't nest and we don't allow more than one <problem> in
1506: # a .problem file.
1507: #
1.184 albertel 1508: if ( $Apache::inputtags::part ne '' ||
1509: $Apache::lonhomework::parsing_a_problem) {
1510: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1511: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1512: return '';
1513: }
1.184 albertel 1514:
1515: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1516: &init_problem_globals('problem');
1.166 albertel 1517:
1.284 albertel 1518: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1519: $Apache::lonhomework::scantronmode=1;
1520: }
1.161 albertel 1521:
1.159 albertel 1522: if ($target ne 'analyze') {
1.415 raeburn 1523: my $type = &Apache::lonnet::EXT('resource.0.type');
1524: $Apache::lonhomework::type=$type;
1.284 albertel 1525: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1526: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1527: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1528: }
1.332 albertel 1529: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1530: }
1.164 albertel 1531: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1532: my $uri=$env{'request.uri'};
1.159 albertel 1533: if ($uri=~/\.(\w+)$/) {
1534: $Apache::lonhomework::type=$1;
1535: &Apache::lonxml::debug("Using type of $1");
1536: } else {
1537: $Apache::lonhomework::type='problem';
1538: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1539: }
1.87 albertel 1540: }
1.301 albertel 1541: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1542:
1.363 albertel 1543: &initialize_storage();
1.389 albertel 1544: if ($target ne 'analyze'
1545: && $env{'request.state'} eq 'construct') {
1546: &set_problem_state('0');
1547: }
1548:
1.366 albertel 1549: if ($target eq 'web') {
1550: &Apache::lonxml::debug(" grading history ");
1551: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1552: }
1.363 albertel 1553:
1.159 albertel 1554: #added vars to the scripting enviroment
1.213 albertel 1555: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1556: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1557: &Apache::run::run($expression,$safeeval);
1.159 albertel 1558: my $status;
1559: my $accessmsg;
1.508 raeburn 1560: my $resource_due;
1.540 raeburn 1561: my $ipused;
1.159 albertel 1562:
1.343 albertel 1563: my $name= &get_resource_name($parstack,$safeeval);
1.528 raeburn 1564: my ($result,$form_tag_start,$slot_name,$slot,$probpartlist);
1.506 raeburn 1565:
1566: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1567: $target eq 'tex') {
1568: if ($env{'form.markaccess'}) {
1569: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1.539 raeburn 1570: my ($timelimit) = split(/_/,$interval[0]);
1571: &Apache::lonnet::set_first_access($interval[1],$timelimit);
1.506 raeburn 1572: }
1573: }
1574:
1.354 albertel 1575: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1576: || $target eq 'edit') {
1.528 raeburn 1577: ($result,$form_tag_start,$probpartlist) =
1.350 albertel 1578: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1579: $name);
1.552 raeburn 1580: } elsif ((($target eq 'grade') && ($Apache::lonhomework::type eq 'randomizetry')) ||
1581: ($target eq 'answer')) {
1.528 raeburn 1582: my ($symb)= &Apache::lonnet::whichuser();
1583: my $navmap = Apache::lonnavmaps::navmap->new();
1584: if (ref($navmap)) {
1585: my $res = $navmap->getBySymb($symb);
1586: if (ref($res)) {
1587: $probpartlist = $res->parts();
1588: }
1589: }
1.350 albertel 1590: }
1591:
1.552 raeburn 1592: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1593: $target eq 'tex') {
1594:
1595: my ($symb)= &Apache::lonnet::whichuser();
1596: ($status,$accessmsg,$slot_name,$slot,$ipused) =
1597: &Apache::lonhomework::check_slot_access('0','problem',$symb,$probpartlist);
1598: push (@Apache::inputtags::status,$status);
1599: }
1600:
1.284 albertel 1601: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1602:
1.479 raeburn 1603: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1604: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1605: $target eq 'tex') {
1.479 raeburn 1606:
1.159 albertel 1607: #handle rand seed in construction space
1.528 raeburn 1608: my $rndseed=&setup_rndseed($safeeval,$target,$probpartlist);
1609: if (($target eq 'grade') && &Apache::response::submitted()) {
1610: if ($Apache::lonhomework::type eq 'randomizetry') {
1.529 raeburn 1611: $Apache::lonhomework::results{'resource.0.rndseed'}=$rndseed;
1.528 raeburn 1612: } else {
1613: my @parts;
1614: if (ref($probpartlist) eq 'ARRAY') {
1615: @parts = @{$probpartlist};
1616: }
1617: unless (@parts) {
1.529 raeburn 1618: $Apache::lonhomework::results{'resource.0.rndseed'}=$Apache::lonhomework::rawrndseed;
1.528 raeburn 1619: }
1620: }
1621: }
1.367 albertel 1622: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 1623:
1.333 albertel 1624: if ($env{'request.state'} ne "construct" &&
1625: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1626: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1627: $rndseed.'" />'.
1.551 damieng 1628: '<button type="submit" name="resetdata"
1629: value="new_problem_variation">'.&mt('New Problem Variation').'</button>';
1.334 albertel 1630: if (exists($env{'form.username'})) {
1631: $form_tag_start.=
1.164 albertel 1632: '<input type="hidden" name="username"
1.284 albertel 1633: value="'.$env{'form.username'}.'" />';
1.334 albertel 1634: }
1.462 raeburn 1635: if ($env{'request.role.adv'}) {
1636: $form_tag_start.= ' <label class="LC_nobreak">'
1637: .'<input type="checkbox" name="showallfoils"';
1638: if (defined($env{'form.showallfoils'})) {
1639: $form_tag_start.=' checked="checked"';
1640: }
1641: $form_tag_start.= ' /> '
1642: .&mt('Show All Foils')
1643: .'</label>';
1644: }
1.417 www 1645: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1646: $form_tag_start.=&practice_problem_header();
1.417 www 1647: }
1.462 raeburn 1648: $form_tag_start.='<hr />';
1.479 raeburn 1649: } elsif (($env{'request.state'} ne "construct") &&
1650: ($Apache::lonhomework::type eq 'randomizetry') &&
1.546 raeburn 1651: ($status eq 'CAN_ANSWER') &&
1.549 raeburn 1652: ($env{'course.'.$env{'request.course.id'}.'.type'} ne 'Placement') &&
1653: (!$env{'request.role.adv'})) {
1654: # "New Problem Variation Each Try" header suppressed for Placement Tests, unless course personnel.
1.479 raeburn 1655: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1656: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1657: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1658: }
1.324 albertel 1659:
1.159 albertel 1660: my $expression='$external::datestatus="'.$status.'";';
1661: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1662: &Apache::run::run($expression,$safeeval);
1663: &Apache::lonxml::debug("Got $status");
1.324 albertel 1664:
1.159 albertel 1665: if (( $status eq 'CLOSED' ) ||
1666: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1667: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1668: ( $status eq 'BANNED') ||
1.216 albertel 1669: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1670: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1671: ( $status eq 'NOTRESERVABLE') ||
1672: ( $status eq 'RESERVABLE') ||
1673: ( $status eq 'RESERVABLE_LATER') ||
1.540 raeburn 1674: ( $status eq 'INVALID_ACCESS') ||
1675: ( $status eq 'NEED_DIFFERENT_IP')) {
1.326 albertel 1676: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1677: $style);
1.159 albertel 1678: if ( $target eq "web" ) {
1.343 albertel 1679: my $msg;
1.159 albertel 1680: if ($status eq 'UNAVAILABLE') {
1.504 golterma 1681: $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1.441 raeburn 1682: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.504 golterma 1683: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1.499 raeburn 1684: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1685: ($status eq 'NOTRESERVABLE')) {
1.504 golterma 1686: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1.253 albertel 1687: } elsif ($status ne 'NOT_YET_VIEWED') {
1.504 golterma 1688: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1.499 raeburn 1689: }
1.216 albertel 1690: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1691: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1692: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1693: $msg.=&checkout_msg();
1.252 albertel 1694: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1695: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1696: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1697: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.499 raeburn 1698: } elsif ($status eq 'RESERVABLE') {
1699: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1700: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1701: '<br />'.
1702: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1703: } elsif ($status eq 'RESERVABLE_LATER') {
1704: $msg.=&mt('Window to make a reservation will open [_1].',
1705: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1706: } elsif ($status eq 'NOTRESERVABLE') {
1707: $msg.=&mt('Not available to make a reservation.');
1.540 raeburn 1708: } elsif ($status eq 'NEED_DIFFERENT_IP') {
1709: if ($ipused) {
1710: $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");
1711: } else {
1712: $msg.=&mt('Each student must use a different computer to access this resource at this time and/or place.').'<br />'.
1713: &mt('Somebody else has already used this particular computer for that purpose.');
1714: }
1715: }
1.159 albertel 1716: $result.=$msg.'<br />';
1717: } elsif ($target eq 'tex') {
1.332 albertel 1718: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1719: : '\begin{minipage}{\textwidth}';
1.443 foxr 1720: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1721: $startminipage.'\vskip 0 mm';
1.159 albertel 1722: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1723: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1724: } else {
1.211 albertel 1725: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1726: }
1727: }
1.324 albertel 1728: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1729: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1730: $style);
1.324 albertel 1731: if ($target eq 'web') {
1.375 albertel 1732: $result .=
1733: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1734: } elsif ($target eq 'grade') {
1.540 raeburn 1735: my $checkinresult = &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1736: 'problem');
1737: if ($checkinresult = /^error:/) {
1738: $result .= 'error';
1739: }
1.324 albertel 1740: }
1.159 albertel 1741: } elsif ($target eq 'web') {
1.508 raeburn 1742: if ($status eq 'CAN_ANSWER') {
1743: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1744: if ($slot_name ne '') {
1745: my $checked_in =
1746: $Apache::lonhomework::history{'resource.0.checkedin'};
1747: if ($checked_in eq '') {
1748: # unproctored slot access, self checkin
1.540 raeburn 1749: my $needsiptied;
1750: if (ref($slot)) {
1751: $needsiptied = $slot->{'iptied'};
1752: }
1753: my $check = &Apache::bridgetask::check_in('problem',undef,undef,
1754: $slot_name,$needsiptied);
1755: if ($check =~ /^error: /) {
1756: &Apache::lonnet::logthis("Error during self-checkin of problem (symb: $env{'request.symb'}) using slot: $slot_name");
1757: } else {
1758: $checked_in =
1759: $Apache::lonhomework::results{"resource.0.checkedin"};
1760: }
1.508 raeburn 1761: }
1762: if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1763: if ($slot->{'starttime'} < time()) {
1764: if (!$resource_due) {
1765: $resource_due = $slot->{'endtime'};
1766: } elsif ($slot->{'endtime'} < $resource_due) {
1767: $resource_due = $slot->{'endtime'};
1768: }
1769: }
1770: }
1771: }
1772: if ($resource_due) {
1773: my $time_left = $resource_due - time();
1774: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1775: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1776: }
1777: }
1778: }
1.368 albertel 1779: $result.="\n $form_tag_start \t".
1.227 albertel 1780: '<input type="hidden" name="submitted" value="yes" />';
1781: # create a page header and exit
1.284 albertel 1782: if ($env{'request.state'} eq "construct") {
1.544 damieng 1783: if ($env{'form.inhibitmenu'} eq 'yes') {
1784: # error messages can be useful in any case
1785: $result.= &Apache::lonxml::message_location();
1786: } else {
1.542 raeburn 1787: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1788: }
1.428 raeburn 1789: if ($Apache::lonhomework::type eq 'practice') {
1.551 damieng 1790: $result.= '<button type="submit" name="resetdata" '.
1791: 'value="new_problem_variation">'.&mt('New Problem Variation').'</button>'.
1792: &practice_problem_header().'<hr />';
1.428 raeburn 1793: }
1.227 albertel 1794: }
1795: # if we are viewing someone else preserve that info
1.284 albertel 1796: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1797: foreach my $field ('symb','courseid','domain','username') {
1798: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1799: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1800: }
1.479 raeburn 1801: foreach my $field ('trial','questiontype') {
1802: if ($env{"form.grade_$field"} ne '') {
1803: $result .= '<input type="hidden" name="grade_'.$field.
1804: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1805: }
1806: }
1.159 albertel 1807: }
1.490 raeburn 1808: if ($env{'form.grade_imsexport'}) {
1809: $result = '';
1810: }
1.159 albertel 1811: } elsif ($target eq 'tex') {
1.319 foxr 1812: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 1813: $result .= &select_metadata_hyphenation();
1814:
1.319 foxr 1815:
1.99 sakharuk 1816: }
1.159 albertel 1817: } elsif ($target eq 'edit') {
1.343 albertel 1818: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1819: $Apache::lonxml::warnings_error_header=
1820: &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 1821: my $temp=&Apache::edit::insertlist($target,$token);
1822: $result.=$temp;
1823: } elsif ($target eq 'modified') {
1824: $result=$token->[4];
1825: } else {
1826: # page_start returned a starting result, delete it if we don't need it
1827: $result = '';
1.99 sakharuk 1828: }
1.159 albertel 1829: return $result;
1.9 albertel 1830: }
1831:
1832: sub end_problem {
1.159 albertel 1833: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1834: my $result;
1.310 foxr 1835:
1.321 albertel 1836: if (!$Apache::lonxml::metamode) {
1837: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1838: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1839: }
1.319 foxr 1840:
1841: if ($target eq 'tex') {
1.321 albertel 1842: # Figure out the front matter and replace the
1843: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1844: # this in end_problem because whether or not we display due
1845: # dates depends on whether due dates have already been
1846: # displayed in the problem parts.
1847:
1.319 foxr 1848: my $frontmatter = '';
1849: my $startminipage = '';
1850: if (not $env{'form.problem_split'}=~/yes/) {
1851: $startminipage = '\begin{minipage}{\textwidth}';
1852: }
1853: my $id = $Apache::inputtags::part;
1854: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1855: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.526 raeburn 1856: my @packages = split(/,/,$packages);
1.319 foxr 1857: my $allow_print_points = 0;
1858: foreach my $partial_key (@packages) {
1859: if ($partial_key=~m/^part_0$/) {
1860: $allow_print_points=1;
1861: }
1862: }
1863: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1864: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1865: if (lc($env{'course.'.$env{'request.course.id'}.
1866: '.disableexampointprint'}) eq 'yes') {
1867: $allow_print_points=0;
1868: }
1869: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1870: 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 1871: &clear_required_languages();
1.319 foxr 1872: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1873: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1874:
1875: # Figure out what the due date is and if we need to print
1876: # it in the problem header. We have been logging the
1877: # last due date written to file.
1878:
1879: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1880: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1881: my $duedate_text = &mt('Due date: [_1]'
1882: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1883: my $temp_file;
1884: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1885:
1886: # Figure out what the last printed due date is or set it
1887: # to the epoch if no duedates have been printed.
1888:
1889: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1890: if (-e $filename) {
1891: $temp_file = Apache::File->new($filename);
1892: my @due_file = <$temp_file>;
1893: $due_file_content = $due_file[$#due_file];
1894: chomp $due_file_content;
1895: }
1896:
1897: # We display the due date iff it is not the same as the last
1898: # duedate in problem header ($due_file_content), and
1899: # none of our parts displayed a duedate.
1900: #
1901: my $parts_with_displayduedate;
1902: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1903: $parts_with_displayduedate =
1904: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1905: } else {
1906: $parts_with_displayduedate = 0;
1907: }
1908: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1909: $temp_file = Apache::File->new('>'.$filename);
1910: print $temp_file "$duetime\n";
1911: if (not $env{'request.symb'} =~ m/\.page_/) {
1912: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1913: $frontmatter .= $begin_doc.
1.448 bisitz 1914: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1915: } else {
1916: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1917: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1918: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1919: }
1.319 foxr 1920: }
1921: } else {
1.448 bisitz 1922: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1923: }
1924: } else {
1925: if (not $env{'request.symb'} =~ m/\.page_/) {
1926: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1927: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1928: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1929: }
1.319 foxr 1930: } else {
1.381 albertel 1931: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1932: }
1933: }
1934: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1935: }
1936:
1.159 albertel 1937: my $status=$Apache::inputtags::status['-1'];
1938: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1939: $target eq 'tex') {
1.249 albertel 1940: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1941: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1942: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1943: &Apache::inputtags::grade;
1.324 albertel 1944: } elsif ($status eq 'NEEDS_CHECKIN') {
1945: # no need to grade, and don't want to hide data
1.249 albertel 1946: } else {
1947: # move any submission data to .hidden
1948: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1949: }
1.159 albertel 1950: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1951: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1952: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1953: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1954: # if part is zero, no <part>s existed, so we need show the current
1955: # grading status
1956: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1957: $result.= $gradestatus;
1958: }
1959: if (
1.284 albertel 1960: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1961: ($target eq 'answer') || ($target eq 'tex')
1962: ) {
1.490 raeburn 1963: if (($target ne 'tex') &&
1964: ($env{'form.answer_output_mode'} ne 'tex') &&
1965: (!$env{'form.grade_imsexport'})) {
1.254 www 1966: $result.="</form>";
1.159 albertel 1967: }
1968: if ($target eq 'web') {
1.507 raeburn 1969: #
1970: # Closing </body></html> not added by end_page().
1971: # Added separately at end of this routine, after added
1972: # <script></script> so document will be valid xhtml.
1973: #
1.546 raeburn 1974: my $showdisc = 1;
1.547 raeburn 1975: if (($env{'course.'.$env{'request.course.id'}.'.type'} eq 'Placement') &&
1976: (!$env{'request.role.adv'})) {
1977: # For Placement Tests footer with "Post Discussion" and "Send Feedback" links is suppressed.
1.546 raeburn 1978: $showdisc = 0;
1.547 raeburn 1979: my ($symb)= &Apache::lonnet::whichuser();
1980: if ($symb) {
1981: my $navmap = Apache::lonnavmaps::navmap->new();
1982: if (ref($navmap)) {
1983: my $hastries = &Apache::lonplacementtest::has_tries($symb,$navmap);
1984: # For Placement Tests test status is displayed if this is the last resource in the course
1.549 raeburn 1985: # and there are no tries left
1.547 raeburn 1986: unless ($hastries) {
1987: if (&Apache::lonplacementtest::is_lastres($symb,$navmap)) {
1988: my ($score,$incomplete) =
1989: &Apache::lonplacementtest::check_completion(undef,undef,1);
1990: if (!$incomplete) {
1991: $result .= &Apache::lonplacementtest::showresult(1,1);
1992: } elsif ($incomplete < 100) {
1993: $result.= &Apache::lonplacementtest::showincomplete($incomplete,1);
1994: }
1995: } else {
1996: # For Placement Tests score is displayed if test has just been completed
1997: my ($score,$incomplete) = &Apache::lonplacementtest::check_completion(undef,undef,1);
1998: if (!$incomplete) {
1999: $result.= &Apache::lonplacementtest::showresult(1,1);
2000: }
2001: }
2002: }
2003: }
2004: }
1.546 raeburn 2005: }
2006: $result.= &Apache::loncommon::end_page({'discussion' => $showdisc,
1.507 raeburn 2007: 'notbody' => 1});
1.159 albertel 2008: } elsif ($target eq 'tex') {
1.178 sakharuk 2009: my $endminipage = '';
1.284 albertel 2010: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 2011: $endminipage = '\end{minipage}';
2012: }
1.284 albertel 2013: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 2014: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 2015: } else {
1.262 sakharuk 2016: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 2017: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 2018: $result .= $endminipage.'\end{document} ';
2019: } else {
1.382 albertel 2020: $result .= $endminipage;
1.262 sakharuk 2021: }
1.159 albertel 2022: }
2023: }
2024: }
1.476 www 2025: if ($target eq 'web') {
2026: $result.=&Apache::functionplotresponse::init_script();
2027: }
1.159 albertel 2028: if ($target eq 'grade') {
2029: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
2030: &finalize_storage();
2031: }
1.284 albertel 2032: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
2033: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 2034: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 2035: # normally we get it from above, but in CSTR
1.172 albertel 2036: # we always show answer mode too.
1.159 albertel 2037: }
2038: } elsif ($target eq 'meta') {
2039: if ($Apache::inputtags::part eq '0') {
1.179 albertel 2040: @Apache::inputtags::response=();
1.159 albertel 2041: $result=&Apache::response::mandatory_part_meta;
2042: }
1.215 albertel 2043: $result.=&Apache::response::meta_part_order();
1.258 albertel 2044: $result.=&Apache::response::meta_response_order();
1.159 albertel 2045: } elsif ($target eq 'edit') {
2046: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 2047: $result .= &problem_edit_footer();
1.320 albertel 2048: } elsif ($target eq 'modified') {
2049: $result .= $token->[2];
1.159 albertel 2050: }
1.155 albertel 2051:
1.284 albertel 2052: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 2053: &Apache::inputtags::check_for_duplicate_ids();
2054: }
1.204 albertel 2055:
2056: &reset_problem_globals('problem');
1.159 albertel 2057:
1.502 foxr 2058: #
2059: # This shouild be just above the return so that the
2060: # time put in the javascript is as late as possible in the
2061: # computation:
2062: #
2063: if ($target eq 'web') {
2064: $result .= &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 2065: #
2066: # Closing tags delayed so any <script></script> tags
2067: # not in head can appear inside body, for valid xhtml.
2068: #
2069: $result .= "</body>\n</html>";
1.502 foxr 2070: }
1.159 albertel 2071: return $result;
1.48 albertel 2072: }
2073:
1.108 albertel 2074:
1.48 albertel 2075: sub start_library {
1.159 albertel 2076: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 2077: my ($result,$form_tag_start);
1.371 albertel 2078: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 2079: &init_problem_globals('library');
2080: $Apache::lonhomework::type='problem';
2081: }
1.159 albertel 2082: if ($target eq 'edit') {
1.343 albertel 2083: ($result,$form_tag_start)=
2084: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2085: 'Edit');
2086: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 2087: my $temp=&Apache::edit::insertlist($target,$token);
2088: $result.=$temp;
2089: } elsif ($target eq 'modified') {
2090: $result=$token->[4];
1.340 albertel 2091: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 2092: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 2093: && $env{'request.state'} eq "construct" ) {
1.159 albertel 2094: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 2095: ($result,$form_tag_start)=
2096: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2097: $name);
1.479 raeburn 2098: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 2099: $result.=" \n $form_tag_start".
1.159 albertel 2100: '<input type="hidden" name="submitted" value="yes" />';
2101: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 2102: if ($Apache::lonhomework::type eq 'practice') {
1.551 damieng 2103: $result.= '<button type="submit" name="resetdata" '.
2104: 'value="new_problem_variation">'.&mt('New Problem Variation').'</button>'.
2105: &practice_problem_header().'<hr />';
1.428 raeburn 2106: }
1.159 albertel 2107: }
2108: return $result;
1.48 albertel 2109: }
2110:
2111: sub end_library {
1.159 albertel 2112: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2113: my $result='';
2114: if ($target eq 'edit') {
2115: $result=&problem_edit_footer();
1.371 albertel 2116: } elsif ($target eq 'web'
2117: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
2118: && $env{'request.state'} eq "construct") {
1.349 albertel 2119: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 2120: }
1.371 albertel 2121: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
2122: &reset_problem_globals('library');
2123: }
1.159 albertel 2124: return $result;
1.197 www 2125: }
2126:
2127: sub start_definetag {
1.326 albertel 2128: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 2129:
2130: my $result;
2131:
2132: my $name = $token->[2]->{'name'};
1.326 albertel 2133: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 2134: if ($target eq 'web') {
2135: if ($name=~/^\//) {
2136: $result=
2137: '<br /><table class="LC_sty_end"><tr><th>'.
2138: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2139: } else {
2140: $result=
2141: '<br /><table class="LC_sty_begin"><tr><th>'.
2142: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2143: }
2144: $skip = &HTML::Entities::encode($skip, '<>&"');
2145: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 2146: }
2147: return $result;
2148: }
2149:
2150: sub end_definetag {
2151: return '';
1.1 albertel 2152: }
2153:
2154: sub start_block {
1.201 albertel 2155: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 2156:
2157: my $result;
1.1 albertel 2158:
1.339 albertel 2159: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2160: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 2161: my $code = $token->[2]->{'condition'};
1.385 albertel 2162: if (defined($code) && $code ne '') {
1.137 albertel 2163: if (!$Apache::lonxml::default_homework_loaded) {
2164: &Apache::lonxml::default_homework_load($safeeval);
2165: }
1.131 albertel 2166: $result = &Apache::run::run($code,$safeeval);
2167: &Apache::lonxml::debug("block :$code: returned :$result:");
2168: } else {
2169: $result='1';
2170: }
2171: if ( ! $result ) {
1.201 albertel 2172: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 2173: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2174: }
2175: $result='';
2176: } elsif ($target eq 'edit') {
2177: $result .=&Apache::edit::tag_start($target,$token);
2178: $result .=&Apache::edit::text_arg('Test Condition:','condition',
2179: $token,40);
2180: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2181: } elsif ($target eq 'modified') {
2182: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2183: $safeeval,'condition');
2184: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 2185: }
1.131 albertel 2186: return $result;
1.1 albertel 2187: }
2188:
2189: sub end_block {
1.167 www 2190: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2191: my $result;
2192: if ($target eq "edit") {
2193: $result.= &Apache::edit::tag_end($target,$token,'');
2194: }
2195: return $result;
2196: }
1.500 foxr 2197: #
2198: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
2199: # ...
2200: # </languageblock>
2201: #
2202: # This declares the intent to provide content that can be rendered in the
2203: # set of languages in the include specificatino but not in the exclude
2204: # specification. If a currently preferred language is in the include list
2205: # the content in the <languageblock>...</languageblock> is rendered
2206: # If the currently preferred language is in the exclude list,
2207: # the content in the <languageblock>..></languageblock is not rendered.
2208: #
2209: # Pathalogical case handling:
2210: # - Include specified, without the preferred language but exclude specified
2211: # also without the preferred langauge results in rendering the block.
2212: # - Exclude specified without include and excluden not containing a
2213: # preferred language renders the block.
2214: # - Include and exclude both specifying the preferred language does not
2215: # render the block.
2216: # - If neither include/exclude is specified, the block gets rendered.
2217: #
2218: # This tag has no effect when target is in {edit, modified}
2219: #
1.167 www 2220: sub start_languageblock {
1.201 albertel 2221: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 2222:
1.500 foxr 2223: my $result = '';
1.167 www 2224:
1.339 albertel 2225: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2226: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 2227: my $include = $token->[2]->{'include'};
2228: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 2229: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 2230:
2231: # This should not even happen, since we should at least have the server language
2232:
2233: if (!$preferred_languages[0]) {
2234: $preferred_languages[0]='en';
2235: }
2236:
2237: # Now loop over all languages in order of preference
2238:
2239: my $render;
1.398 www 2240: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 2241:
2242: # If neither include/nor exlude is present the block is going
2243: # to get rendered.
2244:
1.399 www 2245: my $found=0;
1.500 foxr 2246: $render=1;
2247:
2248: # If include is specified, don't render the block
2249: # unless the preferred language is included in the set.
2250:
1.398 www 2251: if ($include) {
1.500 foxr 2252: $render=0;
1.398 www 2253: foreach my $included_language (split(/\,/,$include)) {
2254: if ($included_language eq $preferred_language) {
1.500 foxr 2255: $render=1;
1.399 www 2256: $found=1;
1.500 foxr 2257: last; # Only need to find the first.
1.398 www 2258: }
2259: }
2260: }
1.500 foxr 2261: # Do we have an exclude argument?
2262: # If so, and one of the languages matches a preferred language
2263: # inhibit rendering the block. Note that in the pathalogical case the
2264: # author has specified a preferred language in both the include and exclude
2265: # attribte exclude is preferred.
2266:
1.398 www 2267: if ($exclude) {
1.500 foxr 2268: $render=1;
1.398 www 2269: foreach my $excluded_language (split(/\,/,$exclude)) {
2270: if ($excluded_language eq $preferred_language) {
1.500 foxr 2271: $render=0;
1.399 www 2272: $found=1;
1.500 foxr 2273: last; # Only need to find the first.
1.398 www 2274: }
2275: }
2276: }
1.500 foxr 2277: if ($found) {
2278: last; # Done on any match of include or exclude.
2279: }
1.398 www 2280: }
1.500 foxr 2281: # If $render not true skip the entire block until </languageblock>
2282: #
2283:
2284: if ( ! $render ) {
1.201 albertel 2285: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
2286: $style);
2287: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2288: }
1.500 foxr 2289: # If $render is true, we've not skipped the contents of the <languageglock>
2290: # and the normal loncapa processing flow will render it as a matter of course.
2291:
1.167 www 2292: } elsif ($target eq 'edit') {
2293: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2294: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 2295: $token,40);
1.211 albertel 2296: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 2297: $token,40);
2298: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2299: } elsif ($target eq 'modified') {
2300: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 2301: $safeeval,'include',
2302: 'exclude');
1.167 www 2303: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2304: }
2305: return $result;
2306: }
2307:
2308: sub end_languageblock {
1.170 www 2309: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2310: my $result;
1.201 albertel 2311: if ($target eq "edit") {
1.170 www 2312: $result.= &Apache::edit::tag_end($target,$token,'');
2313: }
2314: return $result;
2315: }
1.500 foxr 2316: # languagblock specific tags:
2317: {
2318: # For chunks of a resource that has translations, this hash contains
2319: # the translations available indexed by language name.
2320: #
2321:
2322: my %available_texts;
1.170 www 2323:
1.500 foxr 2324: # <translated> starts a block of a resource that has multiple translations.
2325: # See the <lang> tag as well.
2326: # When </translated> is encountered if there is a translation for the
2327: # currently preferred language, that is rendered inthe web/tex/webgrade
2328: # targets. Otherwise, the default text is rendered.
2329: #
2330: # Note that <lang> is only registered for the duration of the
2331: # <translated>...</translated> block
2332: #
2333: # Pathalogical case handling:
2334: # - If there is no <lang> that specifies a 'default' and there is no
2335: # translation that matches a preferred language, nothing is rendered.
2336: # - Nested <translated>...</translated> might be linguistically supported by
2337: # XML due to the stack nature of tag registration(?) however the rendered
2338: # output will be incorrect because there is only one %available_texts
2339: # has and end_translated clears it.
2340: # - Material outside of a <lang>...</lang> block within the
2341: # <translated>...<translated> block won't render either e.g.:
2342: # <translated>
2343: # The following will be in your preferred langauge:
2344: # <lang which='en'>
2345: # This section in english
2346: # </lang>
2347: # <lang which='sgeiso'>
2348: # Hier es ist auf Deutsch.
2349: # </lang>
2350: # <lang which='sfriso'>
2351: # En Francais
2352: # </lang>
2353: # </translated>
2354: #
2355: # The introductory text prior to the first <lang> tag is not rendered.
2356: #
1.397 albertel 2357: sub start_translated {
2358: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2359: &Apache::lonxml::register('Apache::structuretags',('lang'));
2360: undef(%available_texts);
2361: }
2362:
2363: sub end_translated {
2364: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2365: my $result;
2366: #show the translation on viewable targets
2367: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
2368: # or non-viewable targets, if it's embedded in something that
2369: # wants the output
2370: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
2371: && &Apache::lonxml::in_redirection() ) ) {
2372: my @possibilities = keys(%available_texts);
2373: my $which =
2374: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 2375: if ($target eq 'tex') {
2376: $result = &select_hyphenation($which);
2377: }
2378: $result .= $available_texts{$which};
2379: if ($target eq 'tex') {
2380: $result .= &select_metadata_hyphenation(); # Restore original language.
2381: }
1.397 albertel 2382: }
2383: undef(%available_texts);
2384: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
2385: return $result;
2386: }
2387:
1.500 foxr 2388: # <lang [which='language-name'] [other='lang1,lang2...']>
2389: # Specifies that the block contained within it is a translation
2390: # for a specific language specified by the 'which' attribute. The
2391: # 'other' attribute can be used by itself or in conjunction with
2392: # which to specify this tag _may_ be used as a translation for some
2393: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
2394: # specifying that the block provides a translation for US (primary)
2395: # Canadian, Australian and UK Englush.
2396: #
2397: # Comment: this seems a bit silly why not just support a list of languages
2398: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
2399: #
2400: # Effect:
2401: # The material within the <lang>..</lang> block is stored in the
2402: # specified set of $available_texts hash entries, the appropriate one
2403: # is selected at </translated> time.
2404: #
2405: # Pathalogical case handling:
2406: # If a language occurs multiple times within a <translated> block,
2407: # only the last one is rendered e.g.:
2408: #
2409: # <translated>
2410: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
2411: # Red green color blindness is quite common affecting about 7.8% of
2412: # the male population, but onloy about .65% of the female population.
2413: # </lang>
2414: # Red green colour blindness is quite common affecting about 7.8% of
2415: # the male population, but onloy about .65% of the female population.
2416: # <lang which='seniso', other='senisoCA,senisoAU'>
2417: # </translated>
2418: #
2419: # renders the correct spelling of color (colour) for people who have specified
2420: # a preferred language that is one of the British Commonwealth languages
2421: # even though those are also listed as valid selections for the US english
2422: # <lang> block.
2423: #
1.397 albertel 2424: sub start_lang {
2425: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2426: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2427: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2428: &Apache::lonxml::startredirection();
2429: }
2430: return '';
2431: }
2432:
2433: sub end_lang {
2434: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2435: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2436: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2437: my $result = &Apache::lonxml::endredirection();
2438: my $which = &Apache::lonxml::get_param('which',$parstack,
2439: $safeeval);
1.431 raeburn 2440: if ($which=~/\w/) {
2441: $available_texts{$which} = $result;
2442: }
2443: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
2444: $safeeval);
2445: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
2446: if ($language=~/\w/) {
2447: $available_texts{$language} = $result;
2448: }
1.427 bisitz 2449: }
2450:
1.397 albertel 2451: }
2452: return '';
2453: }
1.500 foxr 2454: } # end langauge block specific tags.
2455:
1.397 albertel 2456:
1.170 www 2457: sub start_instructorcomment {
1.201 albertel 2458: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 2459:
2460: my $result;
2461:
1.339 albertel 2462: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2463: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 2464: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 2465: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 2466: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
2467: $parser,$style);
1.170 www 2468: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2469: }
2470: $result='';
2471: } elsif ($target eq 'edit') {
2472: $result .=&Apache::edit::tag_start($target,$token);
2473: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2474: }
2475: return $result;
2476: }
2477:
2478: sub end_instructorcomment {
1.159 albertel 2479: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2480: my $result;
2481: if ($target eq "edit") {
2482: $result.= &Apache::edit::tag_end($target,$token,'');
2483: }
2484: return $result;
1.4 tsai 2485: }
2486:
2487: sub start_while {
1.326 albertel 2488: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2489:
1.160 albertel 2490: my $result;
1.339 albertel 2491: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2492: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2493: my $code = $token->[2]->{'condition'};
1.4 tsai 2494:
1.160 albertel 2495: push( @Apache::structuretags::whileconds, $code);
2496: if (!$Apache::lonxml::default_homework_loaded) {
2497: &Apache::lonxml::default_homework_load($safeeval);
2498: }
2499: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2500: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2501: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2502: push( @Apache::structuretags::whileline, $token->[5]);
2503: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2504: if ( $result ) {
2505: &Apache::lonxml::newparser($parser,\$bodytext);
2506: }
2507: } elsif ($target eq 'edit') {
2508: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2509: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2510: $token,40);
2511: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2512: } elsif ($target eq 'modified') {
2513: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2514: $safeeval,'condition');
2515: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2516: }
1.160 albertel 2517: return $result;
1.4 tsai 2518: }
2519:
2520: sub end_while {
1.159 albertel 2521: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2522: my $result;
2523:
1.339 albertel 2524: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2525: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2526: my $code = pop(@Apache::structuretags::whileconds);
2527: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2528: my $line = pop(@Apache::structuretags::whileline);
2529: my $return = &Apache::run::run($code,$safeeval);
2530: my $starttime=time;
2531: my $error=0;
2532: while ($return) {
2533: if (time-$starttime >
2534: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2535: $return = 0; $error=1; next;
1.161 albertel 2536: }
2537: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2538: if ($target eq 'grade' || $target eq 'answer' ||
2539: $target eq 'analyze') {
2540: # grade/answer/analyze should produce no output but if we
2541: # are redirecting, the redirecter should know what to do
2542: # with the output
2543: if (!$Apache::lonxml::redirection) { undef($result); }
2544: }
1.161 albertel 2545: $return = &Apache::run::run($code,$safeeval);
2546: }
1.516 bisitz 2547: if ($error) {
2548: &Apache::lonxml::error(
2549: '<pre>'
2550: .&mt('Code ran too long. It ran for more than [_1] seconds.',
2551: $Apache::lonnet::perlvar{'lonScriptTimeout'})
2552: .&mt('This occurred while running <while> on line [_1].',
2553: $line)
2554: .'</pre>');
2555: }
1.160 albertel 2556: } elsif ($target eq "edit") {
2557: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2558: }
1.160 albertel 2559: return $result;
1.1 albertel 2560: }
1.6 tsai 2561:
1.160 albertel 2562: # <randomlist show="1">
1.6 tsai 2563: # <tag1>..</tag1>
2564: # <tag2>..</tag2>
2565: # <tag3>..</tag3>
1.160 albertel 2566: # ...
1.6 tsai 2567: # </randomlist>
2568: sub start_randomlist {
1.326 albertel 2569: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2570: my $result;
1.339 albertel 2571: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2572: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2573: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2574: my $b_parser= HTML::LCParser->new(\$body);
2575: $b_parser->xml_mode(1);
2576: $b_parser->marked_sections(1);
1.159 albertel 2577: my $b_tok;
2578: my @randomlist;
2579: my $list_item;
2580: while($b_tok = $b_parser->get_token() ) {
2581: if($b_tok->[0] eq 'S') { # start tag
2582: # get content of the tag until matching end tag
2583: # get all text upto the matching tag
2584: # and push the content into @randomlist
2585: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2586: $b_parser);
2587: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2588: push(@randomlist,$list_item);
2589: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2590: # $list_item</b>";
2591: }
2592: if($b_tok->[0] eq 'T') { # text
2593: # what to do with text in between tags?
2594: # print "<b>TEXT $b_tok->[1]</b><br />";
2595: }
2596: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2597: # print "<b>END-TAG $b_tok->[1]</b><br />";
2598: # }
2599: }
1.303 albertel 2600: if (@randomlist) {
2601: my @idx_arr = (0 .. $#randomlist);
1.555 ! raeburn 2602: if ($env{'form.code_for_randomlist'}) {
! 2603: &Apache::structuretags::shuffle(\@idx_arr,$target);
! 2604: undef($env{'form.code_for_randomlist'});
! 2605: } else {
! 2606: &Apache::structuretags::shuffle(\@idx_arr);
! 2607: }
1.303 albertel 2608: my $bodytext = '';
2609: my $show=$#randomlist;
2610: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2611: $showarg--;
2612: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2613: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2614: my @currlist;
2615: my $part = $Apache::inputtags::part;
2616: if ($part ne '') {
2617: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2618: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2619: if (!(grep(/^\Q$part\E$/,@currlist))) {
2620: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2621: }
2622: } else {
2623: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2624: }
2625: }
2626: }
1.526 raeburn 2627: for my $i (0 .. $show) {
2628: $bodytext .= "$randomlist[ $idx_arr[$i] ]";
1.303 albertel 2629: }
2630: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2631: }
2632: } elsif ($target eq 'edit' ) {
2633: $result .=&Apache::edit::tag_start($target,$token);
2634: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2635: $token,5);
2636: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2637: } elsif ($target eq 'modified' ) {
2638: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2639: $safeeval,'show');
2640: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2641: }
2642: return $result;
1.7 tsai 2643: }
2644:
2645: sub shuffle {
1.555 ! raeburn 2646: my ($a,$target) = @_;
1.7 tsai 2647: my $i;
1.303 albertel 2648: if (ref($a) eq 'ARRAY' && @$a) {
1.555 ! raeburn 2649: &Apache::response::pushrandomnumber(undef,$target);
1.159 albertel 2650: for($i=@$a;--$i;) {
2651: my $j=int(&Math::Random::random_uniform() * ($i+1));
2652: next if $i == $j;
2653: @$a[$i,$j] = @$a[$j,$i];
2654: }
1.251 albertel 2655: &Apache::response::poprandomnumber();
1.7 tsai 2656: }
1.6 tsai 2657: }
2658:
2659: sub end_randomlist {
1.159 albertel 2660: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2661: my $result;
2662: if ($target eq 'edit' ) {
2663: $result=&Apache::edit::tag_end($target,$token,
2664: 'End Randomly Parsed Block');
2665: }
2666: return $result;
1.6 tsai 2667: }
2668:
1.283 albertel 2669: sub ordered_show_check {
2670: my $last_part=$Apache::inputtags::partlist[-2];
2671: my $in_order=
2672: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2673: my $in_order_show=1;
2674: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2675: $in_order_show=&Apache::response::check_status($last_part);
2676: }
2677: return $in_order_show;
2678: }
2679:
1.469 www 2680:
2681: sub start_startpartmarker {
2682: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2683: my $result='';
2684: if ($target eq 'edit') {
2685: $result=&Apache::edit::tag_start($target,$token);
2686: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2687: $result.=&Apache::edit::end_table();
2688:
2689: }
2690: return $result;
2691: }
2692:
2693: sub end_startpartmarker {
2694: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2695: my @result;
2696: if ($target eq 'edit') { $result[1]='no'; }
2697: return @result;
2698: }
2699:
2700: sub start_endpartmarker {
2701: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2702: my $result='';
2703: if ($target eq 'edit') {
2704: $result=&Apache::edit::tag_start($target,$token);
2705: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2706: $result.=&Apache::edit::end_table();
2707:
2708: }
2709: return $result;
2710: }
2711:
2712: sub end_endpartmarker {
2713: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2714: my @result;
2715: if ($target eq 'edit') { $result[1]='no'; }
2716: return @result;
2717: }
2718:
2719:
2720:
2721:
2722:
1.11 albertel 2723: sub start_part {
1.326 albertel 2724: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2725: if (!$Apache::lonxml::metamode) {
2726: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2727: # duedates.
2728: }
1.159 albertel 2729: my $result='';
1.386 albertel 2730: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2731: $Apache::inputtags::part=$id;
1.177 albertel 2732: push(@Apache::inputtags::partlist,$id);
1.536 raeburn 2733: $Apache::inputtags::leniency='';
1.177 albertel 2734: @Apache::inputtags::response=();
1.159 albertel 2735: @Apache::inputtags::previous=();
2736: @Apache::inputtags::previous_version=();
1.405 albertel 2737: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2738: &Apache::response::reset_params();
2739:
1.159 albertel 2740: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2741: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2742: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.528 raeburn 2743: if ($Apache::lonhomework::type eq 'randomizetry') {
2744: my $rndseed=&setup_rndseed($safeeval,$target);
2745: if (($target eq 'grade') && &Apache::response::submitted()) {
1.529 raeburn 2746: $Apache::lonhomework::results{"resource.$id.rndseed"}=$rndseed;
1.528 raeburn 2747: }
2748: } elsif (($target eq 'grade') && &Apache::response::submitted()) {
1.529 raeburn 2749: $Apache::lonhomework::results{"resource.$id.rndseed"}=$Apache::lonhomework::rawrndseed;
1.528 raeburn 2750: }
1.283 albertel 2751: my $in_order_show=&ordered_show_check();
1.214 albertel 2752: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2753: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2754: &Apache::run::run($expression,$safeeval);
1.159 albertel 2755:
2756: if ($target eq 'meta') {
1.224 www 2757: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2758: return &Apache::response::mandatory_part_meta.
2759: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2760: } elsif ($target eq 'web' || $target eq 'grade' ||
2761: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2762: if ($hidden || !$in_order_show) {
1.326 albertel 2763: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2764: } else {
2765: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2766: push (@Apache::inputtags::status,$status);
2767: my $expression='$external::datestatus="'.$status.'";';
2768: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2769: &Apache::run::run($expression,$safeeval);
1.284 albertel 2770: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2771: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2772: }
1.216 albertel 2773: if (( $status eq 'CLOSED' ) ||
2774: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2775: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2776: ( $status eq 'BANNED') ||
2777: ( $status eq 'UNAVAILABLE') ||
2778: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2779: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2780: $style);
1.159 albertel 2781: if ( $target eq "web" ) {
1.211 albertel 2782: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2783: } elsif ( $target eq 'tex' ) {
1.284 albertel 2784: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2785: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2786: } else {
1.211 albertel 2787: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2788: }
1.159 albertel 2789: }
2790: } else {
2791: if ($target eq 'tex') {
1.284 albertel 2792: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2793: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2794: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2795: } else {
2796: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2797: }
1.195 sakharuk 2798: }
1.159 albertel 2799: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2800: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.526 raeburn 2801: my @allkeys = split(/,/,$allkeys);
1.222 sakharuk 2802: my $allow_print_points = 0;
2803: foreach my $partial_key (@allkeys) {
1.230 albertel 2804: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2805: if ($1 ne '0') {$allow_print_points=1;}
2806: }
2807: }
1.275 albertel 2808: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2809: if (defined($maxtries) && $maxtries < 0) {
2810: $allow_print_points=0;
2811: }
1.302 albertel 2812: if (lc($env{'course.'.$env{'request.course.id'}.
2813: '.disableexampointprint'}) eq 'yes') {
2814: $allow_print_points=0;
2815: }
1.463 foxr 2816: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2817: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2818:
2819: }
1.233 www 2820: } elsif ($target eq 'web') {
1.479 raeburn 2821: if ($status eq 'CAN_ANSWER') {
2822: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2823: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
2824: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
2825: my $num = scalar(@Apache::inputtags::partlist)-1;
2826: if ($probrandomize eq 'randomizetry') {
2827: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
2828: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2829: } else {
2830: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2831: if ($probrandtries ne $reqtries) {
2832: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2833: }
2834: }
2835: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
2836: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2837: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2838: }
2839: }
1.475 raeburn 2840: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2841: }
2842: }
2843: }
2844: } elsif ($target eq 'edit') {
2845: $result.=&Apache::edit::tag_start($target,$token);
2846: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2847: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2848: ' '.
2849: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2850: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2851: } elsif ($target eq 'modified') {
2852: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2853: $safeeval,'id','display');
1.159 albertel 2854: if ($constructtag) {
1.225 albertel 2855: #limiting ids to only letters numbers, and space
1.224 www 2856: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2857: $result = &Apache::edit::rebuild_tag($token);
2858: }
2859: }
2860: return $result;
1.11 albertel 2861: }
2862:
2863: sub end_part {
1.159 albertel 2864: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2865: &Apache::lonxml::debug("in end_part $target ");
2866: my $status=$Apache::inputtags::status['-1'];
2867: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2868: my $in_order_show=&ordered_show_check();
1.321 albertel 2869: my $result;
2870: if (!$Apache::lonxml::metamode) {
2871: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2872: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2873: }
1.312 albertel 2874: if ($target eq 'grade') {
1.249 albertel 2875: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2876: !$hidden && $in_order_show) {
1.311 foxr 2877: $result.=&Apache::inputtags::grade;
1.249 albertel 2878: } else {
2879: # move any submission data to .hidden
2880: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2881: }
1.283 albertel 2882: } elsif (($target eq 'web' || $target eq 'tex') &&
2883: !$hidden && $in_order_show) {
1.159 albertel 2884: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2885: $target);
1.490 raeburn 2886: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2887: ($env{'form.grade_imsexport'})) {
1.212 albertel 2888: $gradestatus='';
2889: }
1.311 foxr 2890: $result.=$gradestatus;
1.265 sakharuk 2891: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2892: } elsif ($target eq 'edit') {
1.311 foxr 2893: $result.=&Apache::edit::end_table();
1.322 albertel 2894: } elsif ($target eq 'modified') {
2895: $result .= $token->[2];
1.159 albertel 2896: }
2897: pop @Apache::inputtags::status;
2898: $Apache::inputtags::part='';
1.536 raeburn 2899: $Apache::inputtags::leniency='';
1.295 albertel 2900: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2901: return $result;
1.11 albertel 2902: }
1.1 albertel 2903:
1.25 albertel 2904: sub start_preduedate {
1.326 albertel 2905: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2906: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2907: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2908: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2909: if (!$Apache::lonhomework::scantronmode &&
2910: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2911: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2912: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2913: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2914: }
1.24 albertel 2915: }
1.159 albertel 2916: return '';
1.24 albertel 2917: }
2918:
1.25 albertel 2919: sub end_preduedate {
1.159 albertel 2920: return '';
1.24 albertel 2921: }
2922:
1.369 foxr 2923: # In all the modes where <postanswerdate> text is
2924: # displayable, all we do is eat up the text between the start/stop
2925: # tags if the conditions are not right to display it.
1.25 albertel 2926: sub start_postanswerdate {
1.326 albertel 2927: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2928: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2929: &Apache::lonnet::allowed('pav',
2930: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2931: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2932: $target eq 'tex' ) {
1.300 albertel 2933: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2934: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2935: (($target eq 'tex') && !$pav)) {
1.326 albertel 2936: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2937: }
2938: }
2939: return '';
1.24 albertel 2940: }
2941:
1.25 albertel 2942: sub end_postanswerdate {
1.159 albertel 2943: return '';
1.24 albertel 2944: }
2945:
1.25 albertel 2946: sub start_notsolved {
1.326 albertel 2947: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2948: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2949: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2950: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2951: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2952: if ($gradestatus =~ /^correct/ &&
2953: &Apache::response::show_answer()) {
1.159 albertel 2954: &Apache::lonxml::debug("skipping");
1.326 albertel 2955: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2956: }
1.24 albertel 2957: }
1.159 albertel 2958: return '';
1.24 albertel 2959: }
2960:
1.25 albertel 2961: sub end_notsolved {
1.159 albertel 2962: return '';
1.24 albertel 2963: }
2964:
2965: sub start_solved {
1.326 albertel 2966: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2967: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2968: $target eq 'tex') {
2969: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2970: if ($gradestatus !~ /^correct/ ||
2971: !&Apache::response::show_answer()) {
1.326 albertel 2972: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2973: }
1.24 albertel 2974: }
1.159 albertel 2975: return '';
1.24 albertel 2976: }
2977:
2978: sub end_solved {
1.248 albertel 2979: return '';
2980: }
2981:
2982: sub start_problemtype {
1.326 albertel 2983: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2984: my $result;
1.339 albertel 2985: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2986: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2987: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2988: if (!defined($mode)) { $mode='show'; }
2989: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2990: my $found=0;
2991: foreach my $type (split(',',$for)) {
2992: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2993: }
2994: if ($mode eq 'show' && !$found) {
1.326 albertel 2995: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2996: }
2997: if ($mode eq 'hide' && $found) {
1.326 albertel 2998: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2999: }
3000: } elsif ($target eq 'edit') {
3001: $result .=&Apache::edit::tag_start($target,$token);
3002: $result.=&Apache::edit::select_arg('Mode:','mode',
3003: [['show','Show'],
3004: ['hide','Hide']]
3005: ,$token);
3006: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.511 bisitz 3007: [ ['exam','Bubblesheet Exam/Quiz Problem'],
1.248 albertel 3008: ['survey','Survey'],
1.465 raeburn 3009: ['surveycred','Survey (with credit)'],
3010: ['anonsurvey','Anonymous Survey'],
3011: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 3012: ['problem','Homework Problem'],
1.479 raeburn 3013: ['practice','Practice Problem'],
3014: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 3015: ,$token);
3016: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
3017: } elsif ($target eq 'modified') {
3018: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
3019: $safeeval,'mode','for');
3020: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
3021: }
3022: return $result;
3023: }
3024:
3025: sub end_problemtype {
1.159 albertel 3026: return '';
1.24 albertel 3027: }
1.34 albertel 3028:
3029: sub start_startouttext {
1.159 albertel 3030: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3031: my @result=(''.'');
3032: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 3033:
3034: my $nesting =
3035: &Apache::lonxml::set_state('outtext',
3036: &Apache::lonxml::get_state('outtext')+1);
3037: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
3038: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
3039: }
1.159 albertel 3040: return (@result);
1.34 albertel 3041: }
1.159 albertel 3042:
1.34 albertel 3043: sub end_startouttext {
1.326 albertel 3044: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 3045: my $result='';
3046: my $text='';
3047: if ($target eq 'edit') {
1.424 foxr 3048: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 3049: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.527 golterma 3050: $result.=&Apache::edit::start_table($token)."<tr><td>".&Apache::loncommon::insert_folding_button()
3051: ." ".&mt('Text Block')."</td>"
1.438 bisitz 3052: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 3053: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 3054: .'</span></td>'
1.550 raeburn 3055: .'<td><span id="math_'.$areaid.'">';
3056: if ($env{'environment.nocodemirror'}) {
3057: $result.=&Apache::lonhtmlcommon::dragmath_button($areaid,1);
3058: } else {
3059: $result.=' ';
3060: }
3061: $result.='</span></td>'
1.474 raeburn 3062: .'<td>'
3063: .&Apache::edit::insertlist($target,$token)
3064: .'</td>'
1.515 golterma 3065: .'<td class="LC_edit_problem_latexhelper">' .
1.474 raeburn 3066: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 3067: &Apache::edit::end_row().
1.362 albertel 3068: &Apache::edit::start_spanning_row()."\n".
1.255 www 3069: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 3070: }
3071: if ($target eq 'modified') {
1.219 albertel 3072: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 3073: }
3074: if ($target eq 'tex') {
3075: $result .= '\noindent ';
3076: }
3077: return $result;
1.34 albertel 3078: }
1.159 albertel 3079:
1.34 albertel 3080: sub start_endouttext {
1.159 albertel 3081: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3082: my $result='';
3083: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
3084: if ($target eq "modified") {
3085: $result='<endouttext />'.
1.377 albertel 3086: &Apache::edit::handle_insertafter('startouttext');
3087: }
1.404 albertel 3088:
3089: my $nesting =
3090: &Apache::lonxml::set_state('outtext',
3091: &Apache::lonxml::get_state('outtext')-1);
3092: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
3093: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
3094: &Apache::lonxml::set_state('outtext', 0);
3095: }
1.159 albertel 3096: return $result;
1.34 albertel 3097: }
1.159 albertel 3098:
1.34 albertel 3099: sub end_endouttext {
1.159 albertel 3100: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3101: my @result=('','');
3102: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
3103: return (@result);
1.34 albertel 3104: }
1.159 albertel 3105:
1.45 albertel 3106: sub delete_startouttext {
1.326 albertel 3107: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
3108: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 3109: my $text=$$parser['-1']->get_text("/endouttext");
3110: my $ntoken=$$parser['-1']->get_token();
3111: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
3112: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
3113: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
3114: # they did the last time round
3115: &Apache::lonxml::increasedepth($ntoken);
3116: &Apache::lonxml::decreasedepth($ntoken);
3117: return 1;
1.193 www 3118: }
3119:
3120: sub start_simpleeditbutton {
3121: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3122: my $result='';
1.284 albertel 3123: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 3124: ($target eq 'web') &&
1.330 albertel 3125: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 3126: my $url=$env{'request.noversionuri'};
1.193 www 3127: $url=~s/\?.*$//;
1.367 albertel 3128: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 3129: # Warning makes more sense and is more important on edit screen
1.442 bisitz 3130: # $result='<p class="LC_warning">'
3131: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
3132: # .&Apache::loncommon::help_open_topic('Caching')
3133: # .'</p>';
1.486 www 3134: $result.=&Apache::loncommon::head_subbox(
3135: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 3136: .&Apache::lonhtmlcommon::add_item_funclist(
3137: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
3138: .&mt('Edit').'</a>')
1.486 www 3139: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 3140:
1.193 www 3141: }
3142: return $result;
3143: }
3144:
3145: sub end_simpleeditbutton {
3146: return '';
1.45 albertel 3147: }
1.34 albertel 3148:
1.428 raeburn 3149: sub practice_problem_header {
3150: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
3151: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
3152: '</span>';
3153: }
3154:
1.479 raeburn 3155: sub randomizetry_problem_header {
3156: my ($problemstatus,$reqtries) = @_;
3157: my ($header,$text);
3158: if ($reqtries > 1) {
3159: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
3160: if (($problemstatus eq 'no') ||
3161: ($problemstatus eq 'no_feedback_ever')) {
3162: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3163: } else {
3164: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3165: }
3166: } else {
3167: $header = &mt('New Problem Variation Each Try');
3168: if (($problemstatus eq 'no') ||
3169: ($problemstatus eq 'no_feedback_ever')) {
3170: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
3171:
3172: } else {
3173: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
3174: }
3175: }
3176: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
3177: '<span class="LC_info">'.$text.'</span><hr />';
3178: }
3179:
3180: sub randomizetry_part_header {
3181: my ($problemstatus,$reqtries,$num) = @_;
3182: my ($header,$text);
3183: if ($reqtries eq 'none') {
3184: $header = &mt('No Question Variation');
3185: $text = &mt('For this question there will no new variation after a try.');
3186: } elsif ($reqtries > 1) {
3187: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
3188: if (($problemstatus eq 'no') ||
3189: ($problemstatus eq 'no_feedback_ever')) {
3190: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3191: } else {
3192: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3193: }
3194: } else {
3195: $header = &mt('New Question Variation For Each Try');
3196: if (($problemstatus eq 'no') ||
3197: ($problemstatus eq 'no_feedback_ever')) {
3198: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
3199: } else {
3200: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
3201: }
3202: }
3203: my $output;
3204: if ($num > 1) {
3205: $output .= '<hr />';
3206: }
3207: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
3208: '<span class="LC_info">'.$text.'</span><br /><br />';
3209: return $output;
3210: }
3211:
1.1 albertel 3212: 1;
3213: __END__
1.435 jms 3214:
3215: =pod
3216:
3217: =back
3218:
3219: =cut
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