Annotation of loncom/homework/structuretags.pm, revision 1.554
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.554 ! damieng 4: # $Id: structuretags.pm,v 1.553 2017/02/03 18:00:30 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: }
1.333 albertel 681: if ($env{'request.state'} eq "construct"
682: || $symb eq ''
683: || $Apache::lonhomework::type eq 'practice'
684: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 685: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 686: ['rndseed']);
1.284 albertel 687: $rndseed=$env{'form.rndseed'};
1.159 albertel 688: if (!$rndseed) {
1.162 albertel 689: $rndseed=$Apache::lonhomework::history{'rndseed'};
690: if (!$rndseed) {
691: $rndseed=time;
692: }
1.284 albertel 693: $env{'form.rndseed'}=$rndseed;
1.162 albertel 694: }
1.479 raeburn 695: if (($env{'request.state'} eq "construct") &&
696: ($Apache::lonhomework::type eq 'randomizetry')) {
697: my $tries = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
698: if ($tries) {
699: $rndseed += $tries;
700: }
1.480 raeburn 701: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 702: }
1.551 damieng 703: if ( ($env{'form.resetdata'} eq 'new_problem_variation'
1.374 albertel 704: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 705: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 706: srand(time);
707: $rndseed=int(rand(2100000000));
1.284 albertel 708: $env{'form.rndseed'}=$rndseed;
709: delete($env{'form.resetdata'});
710: delete($env{'form.newrandomization'});
1.159 albertel 711: }
1.488 www 712: $rndseed=~s/\,/\:/g;
713: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 714: if (defined($rndseed)) {
715: my ($c1,$c2)=split(/\:/,$rndseed);
716: unless ($c2) { $c2=0; }
717: unless (($c1==int($c1)) && ($c2==int($c2))) {
718: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
719: }
1.187 albertel 720: }
1.247 albertel 721: if ($Apache::lonhomework::history{'resource.CODE'}) {
722: $rndseed=&Apache::lonnet::rndseed();
723: }
1.479 raeburn 724: $set_safespace = 1;
725: } elsif ($questiontype eq 'randomizetry') {
726: if ($target eq 'analyze') {
727: if (defined($env{'form.grade_rndseed'})) {
728: $rndseed = $env{'form.grade_rndseed'};
729: }
730: }
731: unless (($target eq 'analyze') && (defined($rndseed))) {
732: $rndseed=&Apache::lonnet::rndseed();
1.528 raeburn 733: my $partfortries = $Apache::inputtags::part;
734: if (ref($probpartlist) eq 'ARRAY') {
735: if ((@{$probpartlist} == 1) && ($probpartlist->[0] ne $Apache::inputtags::part)) {
736: $partfortries = $probpartlist->[0];
737: }
738: }
739: my $curr_try = $Apache::lonhomework::history{"resource.$partfortries.tries"};
1.479 raeburn 740: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
741: $curr_try ++;
742: }
743: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
744: $rndseed = $1;
745: }
746: if ($curr_try) {
1.528 raeburn 747: my $reqtries = &Apache::lonnet::EXT("resource.$partfortries.randomizeontries");
1.479 raeburn 748: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
749: my $inc = int(($curr_try-1)/$reqtries);
750: $rndseed += $inc;
751: } else {
752: $rndseed += $curr_try;
753: }
754: }
755: }
756: $set_safespace = 1;
1.528 raeburn 757: if ($target eq 'grade') {
758: $Apache::lonhomework::rawrndseed = $rndseed;
759: }
1.479 raeburn 760: }
761: if ($set_safespace) {
762: if ($safeeval) {
763: &Apache::lonxml::debug("Setting rndseed to $rndseed");
764: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
765: }
766: }
767: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
768: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 769: }
770: return $rndseed;
1.105 albertel 771: }
772:
1.268 albertel 773: sub remember_problem_state {
774: return '
1.284 albertel 775: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
776: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
777: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 778: }
779:
1.487 www 780: sub problem_edit_action_button {
781: my ($name,$action,$accesskey,$text,$flag)=@_;
782: my $actionscript="setmode(this.form,'$action')";
783: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
784: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
785: }
786:
1.423 www 787: sub problem_edit_buttons {
1.487 www 788: my ($mode)=@_;
1.535 droeschl 789: # Buttons that save
790: my $result = '<div style="float:right">';
791: if ($mode eq 'editxml') {
792: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
793: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
794: } else {
795: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
796: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
797: }
798: $result.="\n</div>\n";
1.487 www 799: # Buttons that do not save
1.535 droeschl 800: $result .= '<div>'.
1.487 www 801: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
802: if ($mode eq 'editxml') {
803: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
804: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
1.550 raeburn 805: if ($env{'environment.nocodemirror'}) {
806: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
807: }
1.487 www 808: } else {
809: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
810: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
811: }
812: $result.="\n</div>";
813: return $result;
1.423 www 814: }
815:
816: sub problem_edit_header {
1.527 golterma 817: my ($mode)=@_;
818: my $return = '<input type="hidden" name="submitted" value="edit" />'.
1.487 www 819: &remember_problem_state('edit').'
1.527 golterma 820: <div class="LC_edit_problem_header">
821: <div class="LC_edit_problem_header_title">
822: '.&mt('Problem Editing').$mode.&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
823: </div><div class="LC_edit_actionbar" id="actionbar">'.
824: '<input type="hidden" name="problemmode" value="saveedit" />'.
825: &problem_edit_buttons();
826:
1.535 droeschl 827: $return .= '</div></div>' . &Apache::lonxml::message_location();
1.527 golterma 828: $return .= '<link rel="stylesheet" href="/adm/codemirror/codemirror-combined.css" />
829: <script type="text/javascript" src="/adm/codemirror/codemirror-compressed-colorful.js"></script>';
830:
831: $return .= '<script type="text/javascript" src="/adm/jQuery/addons/jquery-scrolltofixed.js"></script>
832: <script type="text/javascript">
833: // unless internet explorer
834: if (!(window.navigator.appName == "Microsoft Internet Explorer" && (document.documentMode || document.compatMode))){
835: $(document).ready(
836: function() {
837: $(\'.LC_edit_actionbar\').scrollToFixed(
838: {
839: fixed: function(){
1.535 droeschl 840: //$(this).find(\'.LC_edit_actionbar\').css(\'height\', \'31px\');
841: $(this).find(\'.LC_edit_actionbar\');
1.527 golterma 842: }
843: }
844: );
845: }
846: );
847: }
848: </script>
849: <table id="LC_edit_problem_colorful" border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
850: return $return;
1.105 albertel 851: }
852:
853: sub problem_edit_footer {
1.527 golterma 854: my $resource = $env{'request.ambiguous'};
1.412 albertel 855: return '</td></tr></table><br />
856: <div class="LC_edit_problem_footer">
1.453 bisitz 857: <hr />'.
1.423 www 858: &problem_edit_buttons().'
1.459 bisitz 859: <hr style="clear:both;" />
1.527 golterma 860: <script type="text/javascript">
861: restoreState("'.$resource.'");
862: restoreScrollPosition("'.$resource.'");
863: </script>
1.412 albertel 864: </div>
865: '.
1.342 albertel 866: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 867: }
868:
1.235 albertel 869: sub option {
870: my ($value,$name) = @_;
871: my $result ="<option value='".$value."' ";
1.284 albertel 872: if ($env{'form.'.$name} eq $value) {
1.235 albertel 873: $result.=" selected='on' ";
874: }
875: $result.='>';
876: return $result;
877: }
878:
1.105 albertel 879: sub problem_web_to_edit_header {
1.159 albertel 880: my ($rndseed)=@_;
1.406 albertel 881: my $result .= '<div class="LC_edit_problem_header">';
882:
883: if (!$Apache::lonhomework::parsing_a_task) {
884: $result .=
885: '<div class="LC_edit_problem_header_title">'.
886: &mt('Problem Testing').
887: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
888: '</div>';
889: } else {
890: $result .=
891: '<div class="LC_edit_problem_header_title">'.
892: &mt('Task Testing').
893: '</div>';
894: }
895:
1.315 albertel 896: my $show_all_foils_text =
897: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 898: &mt('Show All Instances')
899: : &mt('Show All Foils');
1.315 albertel 900:
1.452 bisitz 901: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
902: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 903: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 904: $show_all.= ' /> '.$show_all_foils_text
905: .'</label></span>';
1.406 albertel 906:
907:
1.384 albertel 908:
1.406 albertel 909: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 910: if (!$Apache::lonhomework::parsing_a_task) {
911: $result.="
1.406 albertel 912: <div class='LC_edit_problem_header_row1'>
913: <span class=\"LC_nobreak\">
1.405 albertel 914: ".&mt("Problem Status:")."
1.235 albertel 915: <select name='problemstate'>
1.270 albertel 916: <option value=''></option>
1.235 albertel 917: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
918: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
919: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
920: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
921: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
922: </select>
1.406 albertel 923: </span>
924: <span class=\"LC_nobreak\">
1.405 albertel 925: ".&mt("Problem Type:")."
1.235 albertel 926: <select name='problemtype'>
1.270 albertel 927: <option value=''></option>
1.509 bisitz 928: ".&option('exam' ,'problemtype').&mt("Bubblesheet Exam Problem")."</option>
1.428 raeburn 929: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 930: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 931: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
932: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
933: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 934: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 935: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 936: </select>
1.406 albertel 937: </span>
938: $show_all
939: </div>
940: <div class='LC_edit_problem_header_row2'>
941: <span class=\"LC_nobreak\">
1.405 albertel 942: ".&mt("Feedback Mode:")."
1.235 albertel 943: <select name='problemstatus'>
944: <option value=''></option>
1.242 albertel 945: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.517 bisitz 946: ".&option('no', 'problemstatus').&mt("Don't Show Incorrect/Correct Feedback")."</option>
1.405 albertel 947: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 948: </select>
1.406 albertel 949: </span>
950: ";
951:
1.376 albertel 952: } elsif ($Apache::lonhomework::parsing_a_task) {
953: $result.="
1.406 albertel 954: <div class='LC_edit_problem_header_row1'>
955: <span class=\"LC_nobreak\">
1.405 albertel 956: ".&mt("Problem Status:")."
1.376 albertel 957: <select name='problemstate'>
958: <option value=''></option>
959: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
960: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
961: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
962: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
963: </select>
1.406 albertel 964: </span>
965: $show_all
966: ";
967: }
968: $result.='
969: <span class="LC_nobreak">
970: '.&mt('Apply style file: ').'
971: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
972: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
973: </span>
1.422 www 974: </div>
975: <div class="LC_edit_problem_header_row1">'.
976: &Apache::lonxml::renderingoptions().'
1.406 albertel 977: </div>
978: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
979: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
1.551 damieng 980: <button type="submit" name="resetdata" accesskey="r" value="reset_submissions">
981: '.&mt('Reset Submissions').'</button>
1.406 albertel 982: </div>
1.453 bisitz 983: <hr />
1.406 albertel 984: <div class="LC_edit_problem_header_randomize_row">
985: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
986: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 987: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 988: $rndseed.'"
989: onchange="javascript:document.lonhomework.changerandseed.click()" />';
990:
991: if (!$Apache::lonhomework::parsing_a_task) {
992: my $numtoanalyze=$env{'form.numtoanalyze'};
993: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 994: $result .= '<span class="LC_nobreak">'.
995: &mt('[_1] for [_2] versions.',
1.416 raeburn 996: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 997: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
998: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 999: $numtoanalyze.'" size="5" />').
1000: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
1001: '</span>';
1002:
1.313 albertel 1003: }
1.406 albertel 1004:
1005: $result.='
1006: </div>
1.453 bisitz 1007: <hr />
1.447 bisitz 1008: <div>';
1.416 raeburn 1009: $result.='<input type="hidden" name="problemmode" value="view" />';
1010: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
1011: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
1012: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
1013: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.541 damieng 1014: if ($env{'browser.type'} ne 'explorer' || $env{'browser.version'} > 9) {
1015: my $uri = $env{'request.uri'};
1.543 damieng 1016: my $daxeurl = '/daxepage'.$uri;
1.541 damieng 1017: $result .= '<input type="button" value="'.&mt('Edit with Daxe').'" '.
1018: 'onclick="window.open(\''.$daxeurl.'\',\'_blank\');" />';
1019: }
1.408 albertel 1020: $result.='
1021: </div>
1.453 bisitz 1022: <hr />
1.409 albertel 1023: '.&Apache::lonxml::message_location().'
1.406 albertel 1024: </div>';
1.159 albertel 1025: return $result;
1.48 albertel 1026: }
1027:
1.65 albertel 1028: sub initialize_storage {
1.357 albertel 1029: my ($given_symb) = @_;
1.353 albertel 1030: undef(%Apache::lonhomework::results);
1031: undef(%Apache::lonhomework::history);
1.357 albertel 1032: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1033: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 1034:
1035: # anonymous users (CODEd exams) have no data
1036: if ($name eq 'anonymous'
1037: && !defined($domain)) {
1038: return;
1039: }
1040:
1.333 albertel 1041: if ($env{'request.state'} eq 'construct'
1042: || $symb eq ''
1043: || $Apache::lonhomework::type eq 'practice') {
1044:
1045: my $namespace = $symb || $env{'request.uri'};
1.551 damieng 1046: if ($env{'form.resetdata'} eq 'reset_submissions' ||
1047: ($env{'form.resetdata'} eq 'new_problem_variation'
1.374 albertel 1048: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 1049: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1050: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
1051: &Apache::lonxml::debug("Attempt reset");
1052: }
1.159 albertel 1053: %Apache::lonhomework::history=
1.333 albertel 1054: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.526 raeburn 1055: my ($temp)=keys(%Apache::lonhomework::history) ;
1.159 albertel 1056: &Apache::lonxml::debug("Return message of $temp");
1057: } else {
1058: %Apache::lonhomework::history=
1059: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1060: }
1.353 albertel 1061:
1.159 albertel 1062: #ignore error conditions
1.526 raeburn 1063: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1064: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 1065: }
1066:
1.435 jms 1067: =pod
1068:
1069: =item finalize_storage()
1070:
1.524 raeburn 1071: Stores away the result hash to a student's environment;
1.523 raeburn 1072: checks form.grade_ for specific values, otherwise stores
1073: to the running user's environment.
1.524 raeburn 1074:
1075: &check_correctness_changes() is called in two circumstances
1076: in which the results hash is to be stored permanently, for
1077: grading triggered by a student's submission, where feedback on
1078: correctness is to be provided to the student.
1079:
1080: 1. Immediately prior to storing the results hash
1081:
1082: To handle the case where a student's submission (and award) were
1083: stored after history was retrieved in &initialize_storage(), e.g.,
1084: if a student submitted answers in quick succession (e.g., from
1085: multiple tabs). &Apache::inputtags::hidealldata() is called for
1086: any parts with out-of-order storage (i.e., correct then incorrect,
1087: where awarded >= 1 when correct).
1088:
1089: 2. Immediately after storing the results hash
1090:
1091: To handle the case where lond on the student's homeserver returns
1092: delay:N -- where N is the number of transactions between the last
1093: retrieved in &initialize_storage() and the last stored immediately
1094: before permanent storage of the current transaction via
1095: lond::store_handler(). &Apache::grades::makehidden() is called
1096: for any parts with out-of-order storage (i.e., correct then incorrect,
1097: where awarded >= 1 when correct).
1098:
1099: Will call &store_aggregates() to increment totals for attempts,
1100: students, and corrects, if running user has student role.
1101:
1.435 jms 1102: =cut
1103:
1104:
1.65 albertel 1105: sub finalize_storage {
1.357 albertel 1106: my ($given_symb) = @_;
1.159 albertel 1107: my $result;
1.289 albertel 1108: if (%Apache::lonhomework::results) {
1.323 albertel 1109: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
1110: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 1111: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1112: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 1113: if ($env{'request.state'} eq 'construct'
1114: || $symb eq ''
1115: || $Apache::lonhomework::type eq 'practice') {
1116: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 1117: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 1118: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 1119: $namespace,'',$domain,$name);
1.159 albertel 1120: &Apache::lonxml::debug('Construct Store return message:'.$result);
1121: } else {
1.524 raeburn 1122: my ($laststore,$checkedparts,@parts,%postcorrect);
1123: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1124: (!$Apache::lonhomework::scantronmode) && (!defined($env{'form.grade_symb'})) &&
1125: (!defined($env{'form.grade_courseid'}))) {
1126: if ($Apache::lonhomework::history{'version'}) {
1127: $laststore = $Apache::lonhomework::history{'version'}.'='.
1128: $Apache::lonhomework::history{'timestamp'};
1129: } else {
1130: $laststore = '0=0';
1131: }
1132: my %record = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1133: if ($record{'version'}) {
1134: my ($newversion,$oldversion,$oldtimestamp);
1135: if ($Apache::lonhomework::history{'version'}) {
1136: $oldversion = $Apache::lonhomework::history{'version'};
1137: $oldtimestamp = $Apache::lonhomework::history{'timestamp'};
1138: } else {
1139: $oldversion = 0;
1140: $oldtimestamp = 0;
1141: }
1142: if ($record{'version'} > $oldversion) {
1143: if ($record{'timestamp'} >= $oldtimestamp) {
1144: $laststore = $record{'version'}.'='.$record{'timestamp'};
1145: $newversion = $record{'version'} + 1;
1146: $checkedparts = 1;
1147: foreach my $key (keys(%Apache::lonhomework::results)) {
1148: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1149: my $part = $1;
1150: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1151: push(@parts,$part);
1152: }
1153: }
1154: }
1155: if (@parts) {
1156: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1157: \%record,\@parts,$newversion,
1158: $oldversion);
1159: if (@parts_to_hide) {
1160: foreach my $part (@parts_to_hide) {
1161: $postcorrect{$part} = 1;
1162: &Apache::inputtags::hidealldata($part);
1163: }
1164: }
1165: }
1166: }
1167: }
1168: }
1169: }
1.159 albertel 1170: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
1.524 raeburn 1171: $symb,$courseid,$domain,$name,$laststore);
1172: if ($result =~ /^delay\:(\d+)$/) {
1173: my $numtrans = $1;
1174: my ($oldversion) = split(/=/,$laststore);
1175: if ($numtrans) {
1176: my $newversion = $oldversion + 1 + $numtrans;
1177: my @possparts;
1178: if ($checkedparts) {
1179: foreach my $part (@parts) {
1180: unless ($postcorrect{$part}) {
1181: push(@possparts,$part);
1182: }
1183: }
1184: } else {
1185: foreach my $key (keys(%Apache::lonhomework::results)) {
1186: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1187: my $part = $1;
1188: unless ($postcorrect{$part}) {
1189: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1190: push(@possparts,$part);
1191: }
1192: }
1193: }
1194: }
1195: }
1196: if (@possparts) {
1197: my %newrecord = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1198: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1199: \%newrecord,\@possparts,$newversion,
1200: $oldversion);
1201: if (@parts_to_hide) {
1202: my $partslist = join(',',@parts_to_hide);
1203: &Apache::grades::makehidden($newversion,$partslist,\%newrecord,$symb,$domain,$name,1);
1204: }
1205: }
1206: }
1207: }
1.159 albertel 1208: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 1209: &store_aggregates($symb,$courseid);
1.159 albertel 1210: }
1.323 albertel 1211: } else {
1212: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 1213: }
1.159 albertel 1214: return $result;
1.65 albertel 1215: }
1216:
1.435 jms 1217: =pod
1218:
1.524 raeburn 1219: =item check_correctness_changes()
1220:
1221: For all parts for which current results contain a solved status
1222: of "incorrect_attempted", check if there was a transaction in which
1223: solved was set to "correct_by_student" in the time since the last
1224: transaction (retrieved when &initialize_storage() was called i.e.,
1225: when &start_problem() was called), unless:
1226: (a) questiontype parameter is set to survey or anonymous survey (+/- credit)
1227: (b) problemstatus is set to no or no_feedback_ever
1228: If such a transaction exists, and did not occur after "reset status"
1229: by a user with grading privileges, then the current transaction is an
1230: example of an out-of-order transaction (i.e., incorrect occurring after
1231: correct). Accordingly, the current transaction should be hidden.
1232:
1233: =cut
1234:
1235:
1236: sub check_correctness_changes {
1237: my ($symb,$courseid,$domain,$name,$record,$parts,$newversion,$oldversion) = @_;
1238: my @parts_to_hide;
1239: unless ((ref($record) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
1240: return @parts_to_hide;
1241: }
1242: if (@{$parts}) {
1243: my $usec;
1244: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1245: ($env{'request.course.id'} eq $courseid)) {
1246: $usec = $env{'request.course.sec'};
1247: } else {
1248: $usec = &Apache::lonnet::getsection($domain,$name,$courseid);
1249: }
1250: foreach my $id (@{$parts}) {
1251: next if (($Apache::lonhomework::results{'resource.'.$id.'.type'} =~ /survey/) ||
1252: (&Apache::lonnet::EXT("resource.$id.problemstatus",$symb,
1253: $domain,$name,$usec,undef,$courseid) =~ /^no/));
1254: my $reset;
1255: for (my $i=$newversion-1; $i>=$oldversion; $i--) {
1256: if (($record->{$i.':resource.'.$id.'.regrader'}) &&
1257: ($record->{$i.':resource.'.$id.'.tries'} eq '') &&
1258: ($record->{$i.':resource.'.$id.'.award'} eq '')) {
1259: $reset = 1;
1260: } elsif (($record->{$i.":resource.$id.solved"} eq 'correct_by_student') &&
1261: ($record->{$i.":resource.$id.awarded"} >= 1)) {
1262: unless ($reset) {
1263: push(@parts_to_hide,$id);
1264: last;
1265: }
1266: }
1267: }
1268: }
1269: }
1270: return @parts_to_hide;
1271: }
1272:
1273: =pod
1274:
1.435 jms 1275: item store_aggregates()
1276:
1277: Sends hash of values to be incremented in nohist_resourcetracker.db
1278: for the course. Increments total number of attempts, unique students
1279: and corrects for each part for an instance of a problem, as appropriate.
1280:
1281: =cut
1282:
1.285 raeburn 1283: sub store_aggregates {
1284: my ($symb,$courseid) = @_;
1.479 raeburn 1285: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 1286: my @parts;
1.288 albertel 1287: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
1288: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 1289: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 1290: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 1291: push(@parts, $1);
1.285 raeburn 1292: }
1293: }
1.286 albertel 1294: foreach my $part (@parts) {
1.470 raeburn 1295: if ($env{'request.role'} =~/^st/) {
1296: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
1297: eq 'APPROX_ANS' ||
1298: $Apache::lonhomework::results{'resource.'.$part.'.award'}
1299: eq 'EXACT_ANS') {
1300: $aggregate{$symb."\0".$part."\0correct"} = 1;
1301: }
1302: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1303: $aggregate{$symb."\0".$part."\0users"} = 1;
1304: } else {
1305: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1306: if ($last_reset) {
1307: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1308: $aggregate{$symb."\0".$part."\0users"} = 1;
1309: }
1310: }
1311: }
1312: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 1313: }
1.470 raeburn 1314: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 1315: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
1316: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
1317: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
1318: $randtrycounter{$symb."\0".$part} = 1;
1319: } else {
1320: $anoncounter{$symb."\0".$part} = 1;
1321: }
1.545 raeburn 1322: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}.'::'};
1.537 raeburn 1323: if ($needsrelease) {
1.470 raeburn 1324: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
1325: if ($curr_required eq '') {
1.471 raeburn 1326: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1327: } else {
1328: my ($currmajor,$currminor) = split(/\./,$curr_required);
1329: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
1330: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 1331: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1332: }
1.292 raeburn 1333: }
1334: }
1.285 raeburn 1335: }
1336: }
1.526 raeburn 1337: if (keys(%aggregate) > 0) {
1.289 albertel 1338: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 1339: $cdomain,$cname);
1340: }
1.472 raeburn 1341: if (keys(%anoncounter) > 0) {
1.481 raeburn 1342: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
1343: $cdomain,$cname);
1.472 raeburn 1344: }
1.479 raeburn 1345: if (keys(%randtrycounter) > 0) {
1.481 raeburn 1346: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
1347: $cdomain,$cname);
1.479 raeburn 1348: }
1.292 raeburn 1349: }
1.289 albertel 1350:
1.65 albertel 1351: sub checkout_msg {
1.211 albertel 1352: my %lt=&Apache::lonlocal::texthash(
1353: 'resource'=>'The resource needs to be checked out',
1354: '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.',
1355: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
1.509 bisitz 1356: 'checkout'=>'Check out Bubblesheet Exam for Viewing',
1357: 'checkout?'=>'Check out Bubblesheet Exam?');
1.352 albertel 1358: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 1359: return (<<ENDCHECKOUT);
1.211 albertel 1360: <h2>$lt{'resource'}</h2>
1361: <p>$lt{'id_expln'}</p>
1.449 bisitz 1362: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 1363: <form name="checkout" method="post" action="$uri">
1.91 albertel 1364: <input type="hidden" name="doescheckout" value="yes" />
1.514 bisitz 1365: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onclick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 1366: </form>
1367: ENDCHECKOUT
1368: }
1369:
1.252 albertel 1370: sub firstaccess_msg {
1.253 albertel 1371: my ($time,$symb)=@_;
1.414 albertel 1372: my $result;
1373: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1374: if ($interval[1] eq 'map') {
1375: my ($map)=&Apache::lonnet::decode_symb($symb);
1376: my $foldertitle=&Apache::lonnet::gettitle($map);
1377:
1378: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 1379: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
1380: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1381: ,$foldertitle,$time)."</p>";
1.414 albertel 1382: } elsif ($interval[1] eq 'course') {
1383: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 1384: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 1385: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 1386: ,$course,$time)."</p>";
1.414 albertel 1387: } else {
1388: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1389: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1390: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1391: ,$title,$time)."</p>";
1.414 albertel 1392: }
1.352 albertel 1393: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1394: my $buttontext = &mt('Show Resource');
1395: my $timertext = &mt('Start Timer?');
1.414 albertel 1396: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1397: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1398: <input type="hidden" name="markaccess" value="yes" />
1.514 bisitz 1399: <input type="button" name="accessbutton" value="$buttontext" onclick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1400: </form>
1401: ENDCHECKOUT
1.414 albertel 1402: return $result;
1.252 albertel 1403: }
1404:
1.204 albertel 1405: sub init_problem_globals {
1406: my ($type)=@_;
1407: #initialize globals
1.308 foxr 1408: # For problems, we start out in part 0 (outside a <part> tag).
1409: # and part 0 is used to describe the main body of the <problem>
1410: #
1.204 albertel 1411: if ($type eq 'problem') {
1412: $Apache::inputtags::part='0';
1413: @Apache::inputtags::partlist=('0');
1.405 albertel 1414: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1415: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1416:
1.266 albertel 1417: } elsif ($type eq 'library') {
1.204 albertel 1418: $Apache::inputtags::part='';
1419: @Apache::inputtags::partlist=();
1.405 albertel 1420: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1421: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1422:
1.304 albertel 1423: } elsif ($type eq 'Task') {
1424: $Apache::inputtags::part='0';
1425: @Apache::inputtags::partlist=('0');
1.405 albertel 1426: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1427: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1428: }
1.477 www 1429: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1430: @Apache::inputtags::responselist = ();
1431: @Apache::inputtags::importlist = ();
1432: @Apache::inputtags::previous=();
1433: @Apache::inputtags::previous_version=();
1.536 raeburn 1434: $Apache::inputtags::leniency='';
1.204 albertel 1435: $Apache::structuretags::printanswer='No';
1436: @Apache::structuretags::whileconds=();
1437: @Apache::structuretags::whilebody=();
1438: @Apache::structuretags::whileline=();
1439: $Apache::lonhomework::scantronmode=0;
1440: undef($Apache::lonhomework::name);
1.358 albertel 1441: undef($Apache::lonhomework::default_type);
1442: undef($Apache::lonhomework::type);
1.204 albertel 1443: }
1444:
1445: sub reset_problem_globals {
1446: my ($type)=@_;
1447: undef(%Apache::lonhomework::history);
1448: undef(%Apache::lonhomework::results);
1449: undef($Apache::inputtags::part);
1.536 raeburn 1450: undef($Apache::inputtags::leniency);
1.498 raeburn 1451: if ($type eq 'Task') {
1452: undef($Apache::inputtags::slot_name);
1.528 raeburn 1453: } elsif ($type eq 'problem') {
1454: undef($Apache::lonhomework::rawrndseed);
1.498 raeburn 1455: }
1.208 albertel 1456: #don't undef this, lonhomework.pm takes care of this, we use this to
1457: #detect if we try to do 2 problems in one file
1458: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1459: undef($Apache::lonhomework::name);
1.358 albertel 1460: undef($Apache::lonhomework::default_type);
1461: undef($Apache::lonhomework::type);
1462: undef($Apache::lonhomework::scantronmode);
1463: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1464: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1465: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1466: }
1467:
1.241 albertel 1468: sub set_problem_state {
1.240 albertel 1469: my ($part)=@_;
1.284 albertel 1470: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1471: $Apache::lonhomework::history{"resource.$part.solved"}=
1472: 'correct_by_student';
1473: }
1474: }
1475:
1.241 albertel 1476: sub get_problem_status {
1477: my ($part)=@_;
1.267 albertel 1478: my $problem_status;
1.284 albertel 1479: if ($env{'request.state'} eq 'construct' &&
1480: defined($env{'form.problemstatus'})) {
1481: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1482: } else {
1483: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1484: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1485: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1486: }
1487: return $problem_status;
1488: }
1489:
1.9 albertel 1490: sub start_problem {
1.326 albertel 1491: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1492:
1.311 foxr 1493: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1494: if (!$Apache::lonxml::metamode) {
1495: &Apache::lonxml::startredirection();
1496: }
1.311 foxr 1497:
1.308 foxr 1498: # Problems don't nest and we don't allow more than one <problem> in
1499: # a .problem file.
1500: #
1.184 albertel 1501: if ( $Apache::inputtags::part ne '' ||
1502: $Apache::lonhomework::parsing_a_problem) {
1503: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1504: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1505: return '';
1506: }
1.184 albertel 1507:
1508: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1509: &init_problem_globals('problem');
1.166 albertel 1510:
1.284 albertel 1511: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1512: $Apache::lonhomework::scantronmode=1;
1513: }
1.161 albertel 1514:
1.159 albertel 1515: if ($target ne 'analyze') {
1.415 raeburn 1516: my $type = &Apache::lonnet::EXT('resource.0.type');
1517: $Apache::lonhomework::type=$type;
1.284 albertel 1518: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1519: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1520: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1521: }
1.332 albertel 1522: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1523: }
1.164 albertel 1524: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1525: my $uri=$env{'request.uri'};
1.159 albertel 1526: if ($uri=~/\.(\w+)$/) {
1527: $Apache::lonhomework::type=$1;
1528: &Apache::lonxml::debug("Using type of $1");
1529: } else {
1530: $Apache::lonhomework::type='problem';
1531: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1532: }
1.87 albertel 1533: }
1.301 albertel 1534: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1535:
1.363 albertel 1536: &initialize_storage();
1.389 albertel 1537: if ($target ne 'analyze'
1538: && $env{'request.state'} eq 'construct') {
1539: &set_problem_state('0');
1540: }
1541:
1.366 albertel 1542: if ($target eq 'web') {
1543: &Apache::lonxml::debug(" grading history ");
1544: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1545: }
1.363 albertel 1546:
1.159 albertel 1547: #added vars to the scripting enviroment
1.213 albertel 1548: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1549: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1550: &Apache::run::run($expression,$safeeval);
1.159 albertel 1551: my $status;
1552: my $accessmsg;
1.508 raeburn 1553: my $resource_due;
1.540 raeburn 1554: my $ipused;
1.159 albertel 1555:
1.343 albertel 1556: my $name= &get_resource_name($parstack,$safeeval);
1.528 raeburn 1557: my ($result,$form_tag_start,$slot_name,$slot,$probpartlist);
1.506 raeburn 1558:
1559: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1560: $target eq 'tex') {
1561: if ($env{'form.markaccess'}) {
1562: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1.539 raeburn 1563: my ($timelimit) = split(/_/,$interval[0]);
1564: &Apache::lonnet::set_first_access($interval[1],$timelimit);
1.506 raeburn 1565: }
1566: }
1567:
1.354 albertel 1568: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1569: || $target eq 'edit') {
1.528 raeburn 1570: ($result,$form_tag_start,$probpartlist) =
1.350 albertel 1571: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1572: $name);
1.552 raeburn 1573: } elsif ((($target eq 'grade') && ($Apache::lonhomework::type eq 'randomizetry')) ||
1574: ($target eq 'answer')) {
1.528 raeburn 1575: my ($symb)= &Apache::lonnet::whichuser();
1576: my $navmap = Apache::lonnavmaps::navmap->new();
1577: if (ref($navmap)) {
1578: my $res = $navmap->getBySymb($symb);
1579: if (ref($res)) {
1580: $probpartlist = $res->parts();
1581: }
1582: }
1.350 albertel 1583: }
1584:
1.552 raeburn 1585: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1586: $target eq 'tex') {
1587:
1588: my ($symb)= &Apache::lonnet::whichuser();
1589: ($status,$accessmsg,$slot_name,$slot,$ipused) =
1590: &Apache::lonhomework::check_slot_access('0','problem',$symb,$probpartlist);
1591: push (@Apache::inputtags::status,$status);
1592: }
1593:
1.284 albertel 1594: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1595:
1.479 raeburn 1596: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1597: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1598: $target eq 'tex') {
1.479 raeburn 1599:
1.159 albertel 1600: #handle rand seed in construction space
1.528 raeburn 1601: my $rndseed=&setup_rndseed($safeeval,$target,$probpartlist);
1602: if (($target eq 'grade') && &Apache::response::submitted()) {
1603: if ($Apache::lonhomework::type eq 'randomizetry') {
1.529 raeburn 1604: $Apache::lonhomework::results{'resource.0.rndseed'}=$rndseed;
1.528 raeburn 1605: } else {
1606: my @parts;
1607: if (ref($probpartlist) eq 'ARRAY') {
1608: @parts = @{$probpartlist};
1609: }
1610: unless (@parts) {
1.529 raeburn 1611: $Apache::lonhomework::results{'resource.0.rndseed'}=$Apache::lonhomework::rawrndseed;
1.528 raeburn 1612: }
1613: }
1614: }
1.367 albertel 1615: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 1616:
1.333 albertel 1617: if ($env{'request.state'} ne "construct" &&
1618: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1619: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1620: $rndseed.'" />'.
1.551 damieng 1621: '<button type="submit" name="resetdata"
1622: value="new_problem_variation">'.&mt('New Problem Variation').'</button>';
1.334 albertel 1623: if (exists($env{'form.username'})) {
1624: $form_tag_start.=
1.164 albertel 1625: '<input type="hidden" name="username"
1.284 albertel 1626: value="'.$env{'form.username'}.'" />';
1.334 albertel 1627: }
1.462 raeburn 1628: if ($env{'request.role.adv'}) {
1629: $form_tag_start.= ' <label class="LC_nobreak">'
1630: .'<input type="checkbox" name="showallfoils"';
1631: if (defined($env{'form.showallfoils'})) {
1632: $form_tag_start.=' checked="checked"';
1633: }
1634: $form_tag_start.= ' /> '
1635: .&mt('Show All Foils')
1636: .'</label>';
1637: }
1.417 www 1638: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1639: $form_tag_start.=&practice_problem_header();
1.417 www 1640: }
1.462 raeburn 1641: $form_tag_start.='<hr />';
1.479 raeburn 1642: } elsif (($env{'request.state'} ne "construct") &&
1643: ($Apache::lonhomework::type eq 'randomizetry') &&
1.546 raeburn 1644: ($status eq 'CAN_ANSWER') &&
1.549 raeburn 1645: ($env{'course.'.$env{'request.course.id'}.'.type'} ne 'Placement') &&
1646: (!$env{'request.role.adv'})) {
1647: # "New Problem Variation Each Try" header suppressed for Placement Tests, unless course personnel.
1.479 raeburn 1648: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1649: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1650: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1651: }
1.324 albertel 1652:
1.159 albertel 1653: my $expression='$external::datestatus="'.$status.'";';
1654: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1655: &Apache::run::run($expression,$safeeval);
1656: &Apache::lonxml::debug("Got $status");
1.324 albertel 1657:
1.159 albertel 1658: if (( $status eq 'CLOSED' ) ||
1659: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1660: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1661: ( $status eq 'BANNED') ||
1.216 albertel 1662: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1663: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1664: ( $status eq 'NOTRESERVABLE') ||
1665: ( $status eq 'RESERVABLE') ||
1666: ( $status eq 'RESERVABLE_LATER') ||
1.540 raeburn 1667: ( $status eq 'INVALID_ACCESS') ||
1668: ( $status eq 'NEED_DIFFERENT_IP')) {
1.326 albertel 1669: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1670: $style);
1.159 albertel 1671: if ( $target eq "web" ) {
1.343 albertel 1672: my $msg;
1.159 albertel 1673: if ($status eq 'UNAVAILABLE') {
1.504 golterma 1674: $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 1675: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.504 golterma 1676: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1.499 raeburn 1677: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1678: ($status eq 'NOTRESERVABLE')) {
1.504 golterma 1679: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1.253 albertel 1680: } elsif ($status ne 'NOT_YET_VIEWED') {
1.504 golterma 1681: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1.499 raeburn 1682: }
1.216 albertel 1683: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1684: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1685: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1686: $msg.=&checkout_msg();
1.252 albertel 1687: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1688: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1689: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1690: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.499 raeburn 1691: } elsif ($status eq 'RESERVABLE') {
1692: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1693: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1694: '<br />'.
1695: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1696: } elsif ($status eq 'RESERVABLE_LATER') {
1697: $msg.=&mt('Window to make a reservation will open [_1].',
1698: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1699: } elsif ($status eq 'NOTRESERVABLE') {
1700: $msg.=&mt('Not available to make a reservation.');
1.540 raeburn 1701: } elsif ($status eq 'NEED_DIFFERENT_IP') {
1702: if ($ipused) {
1703: $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");
1704: } else {
1705: $msg.=&mt('Each student must use a different computer to access this resource at this time and/or place.').'<br />'.
1706: &mt('Somebody else has already used this particular computer for that purpose.');
1707: }
1708: }
1.159 albertel 1709: $result.=$msg.'<br />';
1710: } elsif ($target eq 'tex') {
1.332 albertel 1711: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1712: : '\begin{minipage}{\textwidth}';
1.443 foxr 1713: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1714: $startminipage.'\vskip 0 mm';
1.159 albertel 1715: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1716: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1717: } else {
1.211 albertel 1718: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1719: }
1720: }
1.324 albertel 1721: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1722: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1723: $style);
1.324 albertel 1724: if ($target eq 'web') {
1.375 albertel 1725: $result .=
1726: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1727: } elsif ($target eq 'grade') {
1.540 raeburn 1728: my $checkinresult = &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1729: 'problem');
1730: if ($checkinresult = /^error:/) {
1731: $result .= 'error';
1732: }
1.324 albertel 1733: }
1.159 albertel 1734: } elsif ($target eq 'web') {
1.508 raeburn 1735: if ($status eq 'CAN_ANSWER') {
1736: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1737: if ($slot_name ne '') {
1738: my $checked_in =
1739: $Apache::lonhomework::history{'resource.0.checkedin'};
1740: if ($checked_in eq '') {
1741: # unproctored slot access, self checkin
1.540 raeburn 1742: my $needsiptied;
1743: if (ref($slot)) {
1744: $needsiptied = $slot->{'iptied'};
1745: }
1746: my $check = &Apache::bridgetask::check_in('problem',undef,undef,
1747: $slot_name,$needsiptied);
1748: if ($check =~ /^error: /) {
1749: &Apache::lonnet::logthis("Error during self-checkin of problem (symb: $env{'request.symb'}) using slot: $slot_name");
1750: } else {
1751: $checked_in =
1752: $Apache::lonhomework::results{"resource.0.checkedin"};
1753: }
1.508 raeburn 1754: }
1755: if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1756: if ($slot->{'starttime'} < time()) {
1757: if (!$resource_due) {
1758: $resource_due = $slot->{'endtime'};
1759: } elsif ($slot->{'endtime'} < $resource_due) {
1760: $resource_due = $slot->{'endtime'};
1761: }
1762: }
1763: }
1764: }
1765: if ($resource_due) {
1766: my $time_left = $resource_due - time();
1767: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1768: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1769: }
1770: }
1771: }
1.368 albertel 1772: $result.="\n $form_tag_start \t".
1.227 albertel 1773: '<input type="hidden" name="submitted" value="yes" />';
1774: # create a page header and exit
1.284 albertel 1775: if ($env{'request.state'} eq "construct") {
1.544 damieng 1776: if ($env{'form.inhibitmenu'} eq 'yes') {
1777: # error messages can be useful in any case
1778: $result.= &Apache::lonxml::message_location();
1779: } else {
1.542 raeburn 1780: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1781: }
1.428 raeburn 1782: if ($Apache::lonhomework::type eq 'practice') {
1.551 damieng 1783: $result.= '<button type="submit" name="resetdata" '.
1784: 'value="new_problem_variation">'.&mt('New Problem Variation').'</button>'.
1785: &practice_problem_header().'<hr />';
1.428 raeburn 1786: }
1.227 albertel 1787: }
1788: # if we are viewing someone else preserve that info
1.284 albertel 1789: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1790: foreach my $field ('symb','courseid','domain','username') {
1791: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1792: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1793: }
1.479 raeburn 1794: foreach my $field ('trial','questiontype') {
1795: if ($env{"form.grade_$field"} ne '') {
1796: $result .= '<input type="hidden" name="grade_'.$field.
1797: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1798: }
1799: }
1.159 albertel 1800: }
1.490 raeburn 1801: if ($env{'form.grade_imsexport'}) {
1802: $result = '';
1803: }
1.159 albertel 1804: } elsif ($target eq 'tex') {
1.319 foxr 1805: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 1806: $result .= &select_metadata_hyphenation();
1807:
1.319 foxr 1808:
1.99 sakharuk 1809: }
1.159 albertel 1810: } elsif ($target eq 'edit') {
1.343 albertel 1811: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1812: $Apache::lonxml::warnings_error_header=
1813: &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 1814: my $temp=&Apache::edit::insertlist($target,$token);
1815: $result.=$temp;
1816: } elsif ($target eq 'modified') {
1817: $result=$token->[4];
1818: } else {
1819: # page_start returned a starting result, delete it if we don't need it
1820: $result = '';
1.99 sakharuk 1821: }
1.159 albertel 1822: return $result;
1.9 albertel 1823: }
1824:
1825: sub end_problem {
1.159 albertel 1826: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1827: my $result;
1.310 foxr 1828:
1.321 albertel 1829: if (!$Apache::lonxml::metamode) {
1830: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1831: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1832: }
1.319 foxr 1833:
1834: if ($target eq 'tex') {
1.321 albertel 1835: # Figure out the front matter and replace the
1836: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1837: # this in end_problem because whether or not we display due
1838: # dates depends on whether due dates have already been
1839: # displayed in the problem parts.
1840:
1.319 foxr 1841: my $frontmatter = '';
1842: my $startminipage = '';
1843: if (not $env{'form.problem_split'}=~/yes/) {
1844: $startminipage = '\begin{minipage}{\textwidth}';
1845: }
1846: my $id = $Apache::inputtags::part;
1847: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1848: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.526 raeburn 1849: my @packages = split(/,/,$packages);
1.319 foxr 1850: my $allow_print_points = 0;
1851: foreach my $partial_key (@packages) {
1852: if ($partial_key=~m/^part_0$/) {
1853: $allow_print_points=1;
1854: }
1855: }
1856: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1857: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1858: if (lc($env{'course.'.$env{'request.course.id'}.
1859: '.disableexampointprint'}) eq 'yes') {
1860: $allow_print_points=0;
1861: }
1862: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1863: 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 1864: &clear_required_languages();
1.319 foxr 1865: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1866: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1867:
1868: # Figure out what the due date is and if we need to print
1869: # it in the problem header. We have been logging the
1870: # last due date written to file.
1871:
1872: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1873: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1874: my $duedate_text = &mt('Due date: [_1]'
1875: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1876: my $temp_file;
1877: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1878:
1879: # Figure out what the last printed due date is or set it
1880: # to the epoch if no duedates have been printed.
1881:
1882: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1883: if (-e $filename) {
1884: $temp_file = Apache::File->new($filename);
1885: my @due_file = <$temp_file>;
1886: $due_file_content = $due_file[$#due_file];
1887: chomp $due_file_content;
1888: }
1889:
1890: # We display the due date iff it is not the same as the last
1891: # duedate in problem header ($due_file_content), and
1892: # none of our parts displayed a duedate.
1893: #
1894: my $parts_with_displayduedate;
1895: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1896: $parts_with_displayduedate =
1897: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1898: } else {
1899: $parts_with_displayduedate = 0;
1900: }
1901: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1902: $temp_file = Apache::File->new('>'.$filename);
1903: print $temp_file "$duetime\n";
1904: if (not $env{'request.symb'} =~ m/\.page_/) {
1905: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1906: $frontmatter .= $begin_doc.
1.448 bisitz 1907: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1908: } else {
1909: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1910: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1911: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1912: }
1.319 foxr 1913: }
1914: } else {
1.448 bisitz 1915: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1916: }
1917: } else {
1918: if (not $env{'request.symb'} =~ m/\.page_/) {
1919: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1920: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1921: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1922: }
1.319 foxr 1923: } else {
1.381 albertel 1924: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1925: }
1926: }
1927: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1928: }
1929:
1.159 albertel 1930: my $status=$Apache::inputtags::status['-1'];
1931: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1932: $target eq 'tex') {
1.249 albertel 1933: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1934: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1935: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1936: &Apache::inputtags::grade;
1.324 albertel 1937: } elsif ($status eq 'NEEDS_CHECKIN') {
1938: # no need to grade, and don't want to hide data
1.249 albertel 1939: } else {
1940: # move any submission data to .hidden
1941: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1942: }
1.159 albertel 1943: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1944: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1945: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1946: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1947: # if part is zero, no <part>s existed, so we need show the current
1948: # grading status
1949: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1950: $result.= $gradestatus;
1951: }
1952: if (
1.284 albertel 1953: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1954: ($target eq 'answer') || ($target eq 'tex')
1955: ) {
1.490 raeburn 1956: if (($target ne 'tex') &&
1957: ($env{'form.answer_output_mode'} ne 'tex') &&
1958: (!$env{'form.grade_imsexport'})) {
1.254 www 1959: $result.="</form>";
1.159 albertel 1960: }
1961: if ($target eq 'web') {
1.507 raeburn 1962: #
1963: # Closing </body></html> not added by end_page().
1964: # Added separately at end of this routine, after added
1965: # <script></script> so document will be valid xhtml.
1966: #
1.546 raeburn 1967: my $showdisc = 1;
1.547 raeburn 1968: if (($env{'course.'.$env{'request.course.id'}.'.type'} eq 'Placement') &&
1969: (!$env{'request.role.adv'})) {
1970: # For Placement Tests footer with "Post Discussion" and "Send Feedback" links is suppressed.
1.546 raeburn 1971: $showdisc = 0;
1.547 raeburn 1972: my ($symb)= &Apache::lonnet::whichuser();
1973: if ($symb) {
1974: my $navmap = Apache::lonnavmaps::navmap->new();
1975: if (ref($navmap)) {
1976: my $hastries = &Apache::lonplacementtest::has_tries($symb,$navmap);
1977: # For Placement Tests test status is displayed if this is the last resource in the course
1.549 raeburn 1978: # and there are no tries left
1.547 raeburn 1979: unless ($hastries) {
1980: if (&Apache::lonplacementtest::is_lastres($symb,$navmap)) {
1981: my ($score,$incomplete) =
1982: &Apache::lonplacementtest::check_completion(undef,undef,1);
1983: if (!$incomplete) {
1984: $result .= &Apache::lonplacementtest::showresult(1,1);
1985: } elsif ($incomplete < 100) {
1986: $result.= &Apache::lonplacementtest::showincomplete($incomplete,1);
1987: }
1988: } else {
1989: # For Placement Tests score is displayed if test has just been completed
1990: my ($score,$incomplete) = &Apache::lonplacementtest::check_completion(undef,undef,1);
1991: if (!$incomplete) {
1992: $result.= &Apache::lonplacementtest::showresult(1,1);
1993: }
1994: }
1995: }
1996: }
1997: }
1.546 raeburn 1998: }
1999: $result.= &Apache::loncommon::end_page({'discussion' => $showdisc,
1.507 raeburn 2000: 'notbody' => 1});
1.159 albertel 2001: } elsif ($target eq 'tex') {
1.178 sakharuk 2002: my $endminipage = '';
1.284 albertel 2003: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 2004: $endminipage = '\end{minipage}';
2005: }
1.284 albertel 2006: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 2007: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 2008: } else {
1.262 sakharuk 2009: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 2010: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 2011: $result .= $endminipage.'\end{document} ';
2012: } else {
1.382 albertel 2013: $result .= $endminipage;
1.262 sakharuk 2014: }
1.159 albertel 2015: }
2016: }
2017: }
1.476 www 2018: if ($target eq 'web') {
2019: $result.=&Apache::functionplotresponse::init_script();
2020: }
1.159 albertel 2021: if ($target eq 'grade') {
2022: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
2023: &finalize_storage();
2024: }
1.284 albertel 2025: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
2026: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 2027: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 2028: # normally we get it from above, but in CSTR
1.172 albertel 2029: # we always show answer mode too.
1.159 albertel 2030: }
2031: } elsif ($target eq 'meta') {
2032: if ($Apache::inputtags::part eq '0') {
1.179 albertel 2033: @Apache::inputtags::response=();
1.159 albertel 2034: $result=&Apache::response::mandatory_part_meta;
2035: }
1.215 albertel 2036: $result.=&Apache::response::meta_part_order();
1.258 albertel 2037: $result.=&Apache::response::meta_response_order();
1.159 albertel 2038: } elsif ($target eq 'edit') {
2039: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 2040: $result .= &problem_edit_footer();
1.320 albertel 2041: } elsif ($target eq 'modified') {
2042: $result .= $token->[2];
1.159 albertel 2043: }
1.155 albertel 2044:
1.284 albertel 2045: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 2046: &Apache::inputtags::check_for_duplicate_ids();
2047: }
1.204 albertel 2048:
2049: &reset_problem_globals('problem');
1.159 albertel 2050:
1.502 foxr 2051: #
2052: # This shouild be just above the return so that the
2053: # time put in the javascript is as late as possible in the
2054: # computation:
2055: #
2056: if ($target eq 'web') {
2057: $result .= &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 2058: #
2059: # Closing tags delayed so any <script></script> tags
2060: # not in head can appear inside body, for valid xhtml.
2061: #
2062: $result .= "</body>\n</html>";
1.502 foxr 2063: }
1.159 albertel 2064: return $result;
1.48 albertel 2065: }
2066:
1.108 albertel 2067:
1.48 albertel 2068: sub start_library {
1.159 albertel 2069: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 2070: my ($result,$form_tag_start);
1.371 albertel 2071: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 2072: &init_problem_globals('library');
2073: $Apache::lonhomework::type='problem';
2074: }
1.159 albertel 2075: if ($target eq 'edit') {
1.343 albertel 2076: ($result,$form_tag_start)=
2077: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2078: 'Edit');
2079: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 2080: my $temp=&Apache::edit::insertlist($target,$token);
2081: $result.=$temp;
2082: } elsif ($target eq 'modified') {
2083: $result=$token->[4];
1.340 albertel 2084: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 2085: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 2086: && $env{'request.state'} eq "construct" ) {
1.159 albertel 2087: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 2088: ($result,$form_tag_start)=
2089: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2090: $name);
1.479 raeburn 2091: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 2092: $result.=" \n $form_tag_start".
1.159 albertel 2093: '<input type="hidden" name="submitted" value="yes" />';
2094: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 2095: if ($Apache::lonhomework::type eq 'practice') {
1.551 damieng 2096: $result.= '<button type="submit" name="resetdata" '.
2097: 'value="new_problem_variation">'.&mt('New Problem Variation').'</button>'.
2098: &practice_problem_header().'<hr />';
1.428 raeburn 2099: }
1.159 albertel 2100: }
2101: return $result;
1.48 albertel 2102: }
2103:
2104: sub end_library {
1.159 albertel 2105: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2106: my $result='';
2107: if ($target eq 'edit') {
2108: $result=&problem_edit_footer();
1.371 albertel 2109: } elsif ($target eq 'web'
2110: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
2111: && $env{'request.state'} eq "construct") {
1.349 albertel 2112: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 2113: }
1.371 albertel 2114: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
2115: &reset_problem_globals('library');
2116: }
1.159 albertel 2117: return $result;
1.197 www 2118: }
2119:
2120: sub start_definetag {
1.326 albertel 2121: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 2122:
2123: my $result;
2124:
2125: my $name = $token->[2]->{'name'};
1.326 albertel 2126: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 2127: if ($target eq 'web') {
2128: if ($name=~/^\//) {
2129: $result=
2130: '<br /><table class="LC_sty_end"><tr><th>'.
2131: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2132: } else {
2133: $result=
2134: '<br /><table class="LC_sty_begin"><tr><th>'.
2135: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2136: }
2137: $skip = &HTML::Entities::encode($skip, '<>&"');
2138: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 2139: }
2140: return $result;
2141: }
2142:
2143: sub end_definetag {
2144: return '';
1.1 albertel 2145: }
2146:
2147: sub start_block {
1.201 albertel 2148: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 2149:
2150: my $result;
1.1 albertel 2151:
1.339 albertel 2152: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2153: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 2154: my $code = $token->[2]->{'condition'};
1.385 albertel 2155: if (defined($code) && $code ne '') {
1.137 albertel 2156: if (!$Apache::lonxml::default_homework_loaded) {
2157: &Apache::lonxml::default_homework_load($safeeval);
2158: }
1.131 albertel 2159: $result = &Apache::run::run($code,$safeeval);
2160: &Apache::lonxml::debug("block :$code: returned :$result:");
2161: } else {
2162: $result='1';
2163: }
2164: if ( ! $result ) {
1.201 albertel 2165: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 2166: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2167: }
2168: $result='';
2169: } elsif ($target eq 'edit') {
2170: $result .=&Apache::edit::tag_start($target,$token);
2171: $result .=&Apache::edit::text_arg('Test Condition:','condition',
2172: $token,40);
2173: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2174: } elsif ($target eq 'modified') {
2175: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2176: $safeeval,'condition');
2177: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 2178: }
1.131 albertel 2179: return $result;
1.1 albertel 2180: }
2181:
2182: sub end_block {
1.167 www 2183: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2184: my $result;
2185: if ($target eq "edit") {
2186: $result.= &Apache::edit::tag_end($target,$token,'');
2187: }
2188: return $result;
2189: }
1.500 foxr 2190: #
2191: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
2192: # ...
2193: # </languageblock>
2194: #
2195: # This declares the intent to provide content that can be rendered in the
2196: # set of languages in the include specificatino but not in the exclude
2197: # specification. If a currently preferred language is in the include list
2198: # the content in the <languageblock>...</languageblock> is rendered
2199: # If the currently preferred language is in the exclude list,
2200: # the content in the <languageblock>..></languageblock is not rendered.
2201: #
2202: # Pathalogical case handling:
2203: # - Include specified, without the preferred language but exclude specified
2204: # also without the preferred langauge results in rendering the block.
2205: # - Exclude specified without include and excluden not containing a
2206: # preferred language renders the block.
2207: # - Include and exclude both specifying the preferred language does not
2208: # render the block.
2209: # - If neither include/exclude is specified, the block gets rendered.
2210: #
2211: # This tag has no effect when target is in {edit, modified}
2212: #
1.167 www 2213: sub start_languageblock {
1.201 albertel 2214: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 2215:
1.500 foxr 2216: my $result = '';
1.167 www 2217:
1.339 albertel 2218: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2219: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 2220: my $include = $token->[2]->{'include'};
2221: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 2222: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 2223:
2224: # This should not even happen, since we should at least have the server language
2225:
2226: if (!$preferred_languages[0]) {
2227: $preferred_languages[0]='en';
2228: }
2229:
2230: # Now loop over all languages in order of preference
2231:
2232: my $render;
1.398 www 2233: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 2234:
2235: # If neither include/nor exlude is present the block is going
2236: # to get rendered.
2237:
1.399 www 2238: my $found=0;
1.500 foxr 2239: $render=1;
2240:
2241: # If include is specified, don't render the block
2242: # unless the preferred language is included in the set.
2243:
1.398 www 2244: if ($include) {
1.500 foxr 2245: $render=0;
1.398 www 2246: foreach my $included_language (split(/\,/,$include)) {
2247: if ($included_language eq $preferred_language) {
1.500 foxr 2248: $render=1;
1.399 www 2249: $found=1;
1.500 foxr 2250: last; # Only need to find the first.
1.398 www 2251: }
2252: }
2253: }
1.500 foxr 2254: # Do we have an exclude argument?
2255: # If so, and one of the languages matches a preferred language
2256: # inhibit rendering the block. Note that in the pathalogical case the
2257: # author has specified a preferred language in both the include and exclude
2258: # attribte exclude is preferred.
2259:
1.398 www 2260: if ($exclude) {
1.500 foxr 2261: $render=1;
1.398 www 2262: foreach my $excluded_language (split(/\,/,$exclude)) {
2263: if ($excluded_language eq $preferred_language) {
1.500 foxr 2264: $render=0;
1.399 www 2265: $found=1;
1.500 foxr 2266: last; # Only need to find the first.
1.398 www 2267: }
2268: }
2269: }
1.500 foxr 2270: if ($found) {
2271: last; # Done on any match of include or exclude.
2272: }
1.398 www 2273: }
1.500 foxr 2274: # If $render not true skip the entire block until </languageblock>
2275: #
2276:
2277: if ( ! $render ) {
1.201 albertel 2278: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
2279: $style);
2280: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2281: }
1.500 foxr 2282: # If $render is true, we've not skipped the contents of the <languageglock>
2283: # and the normal loncapa processing flow will render it as a matter of course.
2284:
1.167 www 2285: } elsif ($target eq 'edit') {
2286: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2287: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 2288: $token,40);
1.211 albertel 2289: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 2290: $token,40);
2291: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2292: } elsif ($target eq 'modified') {
2293: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 2294: $safeeval,'include',
2295: 'exclude');
1.167 www 2296: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2297: }
2298: return $result;
2299: }
2300:
2301: sub end_languageblock {
1.170 www 2302: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2303: my $result;
1.201 albertel 2304: if ($target eq "edit") {
1.170 www 2305: $result.= &Apache::edit::tag_end($target,$token,'');
2306: }
2307: return $result;
2308: }
1.500 foxr 2309: # languagblock specific tags:
2310: {
2311: # For chunks of a resource that has translations, this hash contains
2312: # the translations available indexed by language name.
2313: #
2314:
2315: my %available_texts;
1.170 www 2316:
1.500 foxr 2317: # <translated> starts a block of a resource that has multiple translations.
2318: # See the <lang> tag as well.
2319: # When </translated> is encountered if there is a translation for the
2320: # currently preferred language, that is rendered inthe web/tex/webgrade
2321: # targets. Otherwise, the default text is rendered.
2322: #
2323: # Note that <lang> is only registered for the duration of the
2324: # <translated>...</translated> block
2325: #
2326: # Pathalogical case handling:
2327: # - If there is no <lang> that specifies a 'default' and there is no
2328: # translation that matches a preferred language, nothing is rendered.
2329: # - Nested <translated>...</translated> might be linguistically supported by
2330: # XML due to the stack nature of tag registration(?) however the rendered
2331: # output will be incorrect because there is only one %available_texts
2332: # has and end_translated clears it.
2333: # - Material outside of a <lang>...</lang> block within the
2334: # <translated>...<translated> block won't render either e.g.:
2335: # <translated>
2336: # The following will be in your preferred langauge:
2337: # <lang which='en'>
2338: # This section in english
2339: # </lang>
2340: # <lang which='sgeiso'>
2341: # Hier es ist auf Deutsch.
2342: # </lang>
2343: # <lang which='sfriso'>
2344: # En Francais
2345: # </lang>
2346: # </translated>
2347: #
2348: # The introductory text prior to the first <lang> tag is not rendered.
2349: #
1.397 albertel 2350: sub start_translated {
2351: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2352: &Apache::lonxml::register('Apache::structuretags',('lang'));
2353: undef(%available_texts);
2354: }
2355:
2356: sub end_translated {
2357: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2358: my $result;
2359: #show the translation on viewable targets
2360: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
2361: # or non-viewable targets, if it's embedded in something that
2362: # wants the output
2363: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
2364: && &Apache::lonxml::in_redirection() ) ) {
2365: my @possibilities = keys(%available_texts);
2366: my $which =
2367: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 2368: if ($target eq 'tex') {
2369: $result = &select_hyphenation($which);
2370: }
2371: $result .= $available_texts{$which};
2372: if ($target eq 'tex') {
2373: $result .= &select_metadata_hyphenation(); # Restore original language.
2374: }
1.397 albertel 2375: }
2376: undef(%available_texts);
2377: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
2378: return $result;
2379: }
2380:
1.500 foxr 2381: # <lang [which='language-name'] [other='lang1,lang2...']>
2382: # Specifies that the block contained within it is a translation
2383: # for a specific language specified by the 'which' attribute. The
2384: # 'other' attribute can be used by itself or in conjunction with
2385: # which to specify this tag _may_ be used as a translation for some
2386: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
2387: # specifying that the block provides a translation for US (primary)
2388: # Canadian, Australian and UK Englush.
2389: #
2390: # Comment: this seems a bit silly why not just support a list of languages
2391: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
2392: #
2393: # Effect:
2394: # The material within the <lang>..</lang> block is stored in the
2395: # specified set of $available_texts hash entries, the appropriate one
2396: # is selected at </translated> time.
2397: #
2398: # Pathalogical case handling:
2399: # If a language occurs multiple times within a <translated> block,
2400: # only the last one is rendered e.g.:
2401: #
2402: # <translated>
2403: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
2404: # Red green color blindness is quite common affecting about 7.8% of
2405: # the male population, but onloy about .65% of the female population.
2406: # </lang>
2407: # Red green colour blindness is quite common affecting about 7.8% of
2408: # the male population, but onloy about .65% of the female population.
2409: # <lang which='seniso', other='senisoCA,senisoAU'>
2410: # </translated>
2411: #
2412: # renders the correct spelling of color (colour) for people who have specified
2413: # a preferred language that is one of the British Commonwealth languages
2414: # even though those are also listed as valid selections for the US english
2415: # <lang> block.
2416: #
1.397 albertel 2417: sub start_lang {
2418: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2419: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2420: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2421: &Apache::lonxml::startredirection();
2422: }
2423: return '';
2424: }
2425:
2426: sub end_lang {
2427: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2428: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2429: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2430: my $result = &Apache::lonxml::endredirection();
2431: my $which = &Apache::lonxml::get_param('which',$parstack,
2432: $safeeval);
1.431 raeburn 2433: if ($which=~/\w/) {
2434: $available_texts{$which} = $result;
2435: }
2436: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
2437: $safeeval);
2438: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
2439: if ($language=~/\w/) {
2440: $available_texts{$language} = $result;
2441: }
1.427 bisitz 2442: }
2443:
1.397 albertel 2444: }
2445: return '';
2446: }
1.500 foxr 2447: } # end langauge block specific tags.
2448:
1.397 albertel 2449:
1.170 www 2450: sub start_instructorcomment {
1.201 albertel 2451: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 2452:
2453: my $result;
2454:
1.339 albertel 2455: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2456: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 2457: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 2458: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 2459: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
2460: $parser,$style);
1.170 www 2461: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2462: }
2463: $result='';
2464: } elsif ($target eq 'edit') {
2465: $result .=&Apache::edit::tag_start($target,$token);
2466: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2467: }
2468: return $result;
2469: }
2470:
2471: sub end_instructorcomment {
1.159 albertel 2472: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2473: my $result;
2474: if ($target eq "edit") {
2475: $result.= &Apache::edit::tag_end($target,$token,'');
2476: }
2477: return $result;
1.4 tsai 2478: }
2479:
2480: sub start_while {
1.326 albertel 2481: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2482:
1.160 albertel 2483: my $result;
1.339 albertel 2484: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2485: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2486: my $code = $token->[2]->{'condition'};
1.4 tsai 2487:
1.160 albertel 2488: push( @Apache::structuretags::whileconds, $code);
2489: if (!$Apache::lonxml::default_homework_loaded) {
2490: &Apache::lonxml::default_homework_load($safeeval);
2491: }
2492: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2493: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2494: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2495: push( @Apache::structuretags::whileline, $token->[5]);
2496: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2497: if ( $result ) {
2498: &Apache::lonxml::newparser($parser,\$bodytext);
2499: }
2500: } elsif ($target eq 'edit') {
2501: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2502: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2503: $token,40);
2504: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2505: } elsif ($target eq 'modified') {
2506: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2507: $safeeval,'condition');
2508: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2509: }
1.160 albertel 2510: return $result;
1.4 tsai 2511: }
2512:
2513: sub end_while {
1.159 albertel 2514: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2515: my $result;
2516:
1.339 albertel 2517: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2518: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2519: my $code = pop(@Apache::structuretags::whileconds);
2520: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2521: my $line = pop(@Apache::structuretags::whileline);
2522: my $return = &Apache::run::run($code,$safeeval);
2523: my $starttime=time;
2524: my $error=0;
2525: while ($return) {
2526: if (time-$starttime >
2527: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2528: $return = 0; $error=1; next;
1.161 albertel 2529: }
2530: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2531: if ($target eq 'grade' || $target eq 'answer' ||
2532: $target eq 'analyze') {
2533: # grade/answer/analyze should produce no output but if we
2534: # are redirecting, the redirecter should know what to do
2535: # with the output
2536: if (!$Apache::lonxml::redirection) { undef($result); }
2537: }
1.161 albertel 2538: $return = &Apache::run::run($code,$safeeval);
2539: }
1.516 bisitz 2540: if ($error) {
2541: &Apache::lonxml::error(
2542: '<pre>'
2543: .&mt('Code ran too long. It ran for more than [_1] seconds.',
2544: $Apache::lonnet::perlvar{'lonScriptTimeout'})
2545: .&mt('This occurred while running <while> on line [_1].',
2546: $line)
2547: .'</pre>');
2548: }
1.160 albertel 2549: } elsif ($target eq "edit") {
2550: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2551: }
1.160 albertel 2552: return $result;
1.1 albertel 2553: }
1.6 tsai 2554:
1.160 albertel 2555: # <randomlist show="1">
1.6 tsai 2556: # <tag1>..</tag1>
2557: # <tag2>..</tag2>
2558: # <tag3>..</tag3>
1.160 albertel 2559: # ...
1.6 tsai 2560: # </randomlist>
2561: sub start_randomlist {
1.326 albertel 2562: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2563: my $result;
1.339 albertel 2564: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2565: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2566: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2567: my $b_parser= HTML::LCParser->new(\$body);
2568: $b_parser->xml_mode(1);
2569: $b_parser->marked_sections(1);
1.159 albertel 2570: my $b_tok;
2571: my @randomlist;
2572: my $list_item;
2573: while($b_tok = $b_parser->get_token() ) {
2574: if($b_tok->[0] eq 'S') { # start tag
2575: # get content of the tag until matching end tag
2576: # get all text upto the matching tag
2577: # and push the content into @randomlist
2578: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2579: $b_parser);
2580: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2581: push(@randomlist,$list_item);
2582: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2583: # $list_item</b>";
2584: }
2585: if($b_tok->[0] eq 'T') { # text
2586: # what to do with text in between tags?
2587: # print "<b>TEXT $b_tok->[1]</b><br />";
2588: }
2589: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2590: # print "<b>END-TAG $b_tok->[1]</b><br />";
2591: # }
2592: }
1.303 albertel 2593: if (@randomlist) {
2594: my @idx_arr = (0 .. $#randomlist);
2595: &Apache::structuretags::shuffle(\@idx_arr);
2596: my $bodytext = '';
2597: my $show=$#randomlist;
2598: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2599: $showarg--;
2600: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2601: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2602: my @currlist;
2603: my $part = $Apache::inputtags::part;
2604: if ($part ne '') {
2605: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2606: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2607: if (!(grep(/^\Q$part\E$/,@currlist))) {
2608: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2609: }
2610: } else {
2611: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2612: }
2613: }
2614: }
1.526 raeburn 2615: for my $i (0 .. $show) {
2616: $bodytext .= "$randomlist[ $idx_arr[$i] ]";
1.303 albertel 2617: }
2618: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2619: }
2620: } elsif ($target eq 'edit' ) {
2621: $result .=&Apache::edit::tag_start($target,$token);
2622: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2623: $token,5);
2624: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2625: } elsif ($target eq 'modified' ) {
2626: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2627: $safeeval,'show');
2628: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2629: }
2630: return $result;
1.7 tsai 2631: }
2632:
2633: sub shuffle {
2634: my $a=shift;
2635: my $i;
1.303 albertel 2636: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 2637: &Apache::response::pushrandomnumber();
1.159 albertel 2638: for($i=@$a;--$i;) {
2639: my $j=int(&Math::Random::random_uniform() * ($i+1));
2640: next if $i == $j;
2641: @$a[$i,$j] = @$a[$j,$i];
2642: }
1.251 albertel 2643: &Apache::response::poprandomnumber();
1.7 tsai 2644: }
1.6 tsai 2645: }
2646:
2647: sub end_randomlist {
1.159 albertel 2648: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2649: my $result;
2650: if ($target eq 'edit' ) {
2651: $result=&Apache::edit::tag_end($target,$token,
2652: 'End Randomly Parsed Block');
2653: }
2654: return $result;
1.6 tsai 2655: }
2656:
1.283 albertel 2657: sub ordered_show_check {
2658: my $last_part=$Apache::inputtags::partlist[-2];
2659: my $in_order=
2660: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2661: my $in_order_show=1;
2662: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2663: $in_order_show=&Apache::response::check_status($last_part);
2664: }
2665: return $in_order_show;
2666: }
2667:
1.469 www 2668:
2669: sub start_startpartmarker {
2670: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2671: my $result='';
2672: if ($target eq 'edit') {
2673: $result=&Apache::edit::tag_start($target,$token);
2674: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2675: $result.=&Apache::edit::end_table();
2676:
2677: }
2678: return $result;
2679: }
2680:
2681: sub end_startpartmarker {
2682: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2683: my @result;
2684: if ($target eq 'edit') { $result[1]='no'; }
2685: return @result;
2686: }
2687:
2688: sub start_endpartmarker {
2689: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2690: my $result='';
2691: if ($target eq 'edit') {
2692: $result=&Apache::edit::tag_start($target,$token);
2693: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2694: $result.=&Apache::edit::end_table();
2695:
2696: }
2697: return $result;
2698: }
2699:
2700: sub end_endpartmarker {
2701: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2702: my @result;
2703: if ($target eq 'edit') { $result[1]='no'; }
2704: return @result;
2705: }
2706:
2707:
2708:
2709:
2710:
1.11 albertel 2711: sub start_part {
1.326 albertel 2712: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2713: if (!$Apache::lonxml::metamode) {
2714: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2715: # duedates.
2716: }
1.159 albertel 2717: my $result='';
1.386 albertel 2718: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2719: $Apache::inputtags::part=$id;
1.177 albertel 2720: push(@Apache::inputtags::partlist,$id);
1.536 raeburn 2721: $Apache::inputtags::leniency='';
1.177 albertel 2722: @Apache::inputtags::response=();
1.159 albertel 2723: @Apache::inputtags::previous=();
2724: @Apache::inputtags::previous_version=();
1.405 albertel 2725: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2726: &Apache::response::reset_params();
2727:
1.159 albertel 2728: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2729: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2730: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.528 raeburn 2731: if ($Apache::lonhomework::type eq 'randomizetry') {
2732: my $rndseed=&setup_rndseed($safeeval,$target);
2733: if (($target eq 'grade') && &Apache::response::submitted()) {
1.529 raeburn 2734: $Apache::lonhomework::results{"resource.$id.rndseed"}=$rndseed;
1.528 raeburn 2735: }
2736: } elsif (($target eq 'grade') && &Apache::response::submitted()) {
1.529 raeburn 2737: $Apache::lonhomework::results{"resource.$id.rndseed"}=$Apache::lonhomework::rawrndseed;
1.528 raeburn 2738: }
1.283 albertel 2739: my $in_order_show=&ordered_show_check();
1.214 albertel 2740: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2741: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2742: &Apache::run::run($expression,$safeeval);
1.159 albertel 2743:
2744: if ($target eq 'meta') {
1.224 www 2745: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2746: return &Apache::response::mandatory_part_meta.
2747: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2748: } elsif ($target eq 'web' || $target eq 'grade' ||
2749: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2750: if ($hidden || !$in_order_show) {
1.326 albertel 2751: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2752: } else {
2753: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2754: push (@Apache::inputtags::status,$status);
2755: my $expression='$external::datestatus="'.$status.'";';
2756: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2757: &Apache::run::run($expression,$safeeval);
1.284 albertel 2758: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2759: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2760: }
1.216 albertel 2761: if (( $status eq 'CLOSED' ) ||
2762: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2763: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2764: ( $status eq 'BANNED') ||
2765: ( $status eq 'UNAVAILABLE') ||
2766: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2767: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2768: $style);
1.159 albertel 2769: if ( $target eq "web" ) {
1.211 albertel 2770: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2771: } elsif ( $target eq 'tex' ) {
1.284 albertel 2772: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2773: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2774: } else {
1.211 albertel 2775: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2776: }
1.159 albertel 2777: }
2778: } else {
2779: if ($target eq 'tex') {
1.284 albertel 2780: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2781: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2782: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2783: } else {
2784: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2785: }
1.195 sakharuk 2786: }
1.159 albertel 2787: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2788: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.526 raeburn 2789: my @allkeys = split(/,/,$allkeys);
1.222 sakharuk 2790: my $allow_print_points = 0;
2791: foreach my $partial_key (@allkeys) {
1.230 albertel 2792: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2793: if ($1 ne '0') {$allow_print_points=1;}
2794: }
2795: }
1.275 albertel 2796: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2797: if (defined($maxtries) && $maxtries < 0) {
2798: $allow_print_points=0;
2799: }
1.302 albertel 2800: if (lc($env{'course.'.$env{'request.course.id'}.
2801: '.disableexampointprint'}) eq 'yes') {
2802: $allow_print_points=0;
2803: }
1.463 foxr 2804: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2805: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2806:
2807: }
1.233 www 2808: } elsif ($target eq 'web') {
1.479 raeburn 2809: if ($status eq 'CAN_ANSWER') {
2810: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2811: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
2812: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
2813: my $num = scalar(@Apache::inputtags::partlist)-1;
2814: if ($probrandomize eq 'randomizetry') {
2815: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
2816: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2817: } else {
2818: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2819: if ($probrandtries ne $reqtries) {
2820: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2821: }
2822: }
2823: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
2824: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2825: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2826: }
2827: }
1.475 raeburn 2828: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2829: }
2830: }
2831: }
2832: } elsif ($target eq 'edit') {
2833: $result.=&Apache::edit::tag_start($target,$token);
2834: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2835: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2836: ' '.
2837: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2838: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2839: } elsif ($target eq 'modified') {
2840: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2841: $safeeval,'id','display');
1.159 albertel 2842: if ($constructtag) {
1.225 albertel 2843: #limiting ids to only letters numbers, and space
1.224 www 2844: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2845: $result = &Apache::edit::rebuild_tag($token);
2846: }
2847: }
2848: return $result;
1.11 albertel 2849: }
2850:
2851: sub end_part {
1.159 albertel 2852: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2853: &Apache::lonxml::debug("in end_part $target ");
2854: my $status=$Apache::inputtags::status['-1'];
2855: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2856: my $in_order_show=&ordered_show_check();
1.321 albertel 2857: my $result;
2858: if (!$Apache::lonxml::metamode) {
2859: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2860: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2861: }
1.312 albertel 2862: if ($target eq 'grade') {
1.249 albertel 2863: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2864: !$hidden && $in_order_show) {
1.311 foxr 2865: $result.=&Apache::inputtags::grade;
1.249 albertel 2866: } else {
2867: # move any submission data to .hidden
2868: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2869: }
1.283 albertel 2870: } elsif (($target eq 'web' || $target eq 'tex') &&
2871: !$hidden && $in_order_show) {
1.159 albertel 2872: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2873: $target);
1.490 raeburn 2874: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2875: ($env{'form.grade_imsexport'})) {
1.212 albertel 2876: $gradestatus='';
2877: }
1.311 foxr 2878: $result.=$gradestatus;
1.265 sakharuk 2879: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2880: } elsif ($target eq 'edit') {
1.311 foxr 2881: $result.=&Apache::edit::end_table();
1.322 albertel 2882: } elsif ($target eq 'modified') {
2883: $result .= $token->[2];
1.159 albertel 2884: }
2885: pop @Apache::inputtags::status;
2886: $Apache::inputtags::part='';
1.536 raeburn 2887: $Apache::inputtags::leniency='';
1.295 albertel 2888: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2889: return $result;
1.11 albertel 2890: }
1.1 albertel 2891:
1.25 albertel 2892: sub start_preduedate {
1.326 albertel 2893: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2894: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2895: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2896: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2897: if (!$Apache::lonhomework::scantronmode &&
2898: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2899: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2900: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2901: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2902: }
1.24 albertel 2903: }
1.159 albertel 2904: return '';
1.24 albertel 2905: }
2906:
1.25 albertel 2907: sub end_preduedate {
1.159 albertel 2908: return '';
1.24 albertel 2909: }
2910:
1.369 foxr 2911: # In all the modes where <postanswerdate> text is
2912: # displayable, all we do is eat up the text between the start/stop
2913: # tags if the conditions are not right to display it.
1.25 albertel 2914: sub start_postanswerdate {
1.326 albertel 2915: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2916: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2917: &Apache::lonnet::allowed('pav',
2918: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2919: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2920: $target eq 'tex' ) {
1.300 albertel 2921: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2922: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2923: (($target eq 'tex') && !$pav)) {
1.326 albertel 2924: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2925: }
2926: }
2927: return '';
1.24 albertel 2928: }
2929:
1.25 albertel 2930: sub end_postanswerdate {
1.159 albertel 2931: return '';
1.24 albertel 2932: }
2933:
1.25 albertel 2934: sub start_notsolved {
1.326 albertel 2935: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2936: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2937: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2938: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2939: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2940: if ($gradestatus =~ /^correct/ &&
2941: &Apache::response::show_answer()) {
1.159 albertel 2942: &Apache::lonxml::debug("skipping");
1.326 albertel 2943: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2944: }
1.24 albertel 2945: }
1.159 albertel 2946: return '';
1.24 albertel 2947: }
2948:
1.25 albertel 2949: sub end_notsolved {
1.159 albertel 2950: return '';
1.24 albertel 2951: }
2952:
2953: sub start_solved {
1.326 albertel 2954: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2955: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2956: $target eq 'tex') {
2957: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2958: if ($gradestatus !~ /^correct/ ||
2959: !&Apache::response::show_answer()) {
1.326 albertel 2960: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2961: }
1.24 albertel 2962: }
1.159 albertel 2963: return '';
1.24 albertel 2964: }
2965:
2966: sub end_solved {
1.248 albertel 2967: return '';
2968: }
2969:
2970: sub start_problemtype {
1.326 albertel 2971: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2972: my $result;
1.339 albertel 2973: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2974: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2975: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2976: if (!defined($mode)) { $mode='show'; }
2977: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2978: my $found=0;
2979: foreach my $type (split(',',$for)) {
2980: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2981: }
2982: if ($mode eq 'show' && !$found) {
1.326 albertel 2983: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2984: }
2985: if ($mode eq 'hide' && $found) {
1.326 albertel 2986: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2987: }
2988: } elsif ($target eq 'edit') {
2989: $result .=&Apache::edit::tag_start($target,$token);
2990: $result.=&Apache::edit::select_arg('Mode:','mode',
2991: [['show','Show'],
2992: ['hide','Hide']]
2993: ,$token);
2994: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.511 bisitz 2995: [ ['exam','Bubblesheet Exam/Quiz Problem'],
1.248 albertel 2996: ['survey','Survey'],
1.465 raeburn 2997: ['surveycred','Survey (with credit)'],
2998: ['anonsurvey','Anonymous Survey'],
2999: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 3000: ['problem','Homework Problem'],
1.479 raeburn 3001: ['practice','Practice Problem'],
3002: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 3003: ,$token);
3004: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
3005: } elsif ($target eq 'modified') {
3006: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
3007: $safeeval,'mode','for');
3008: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
3009: }
3010: return $result;
3011: }
3012:
3013: sub end_problemtype {
1.159 albertel 3014: return '';
1.24 albertel 3015: }
1.34 albertel 3016:
3017: sub start_startouttext {
1.159 albertel 3018: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3019: my @result=(''.'');
3020: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 3021:
3022: my $nesting =
3023: &Apache::lonxml::set_state('outtext',
3024: &Apache::lonxml::get_state('outtext')+1);
3025: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
3026: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
3027: }
1.159 albertel 3028: return (@result);
1.34 albertel 3029: }
1.159 albertel 3030:
1.34 albertel 3031: sub end_startouttext {
1.326 albertel 3032: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 3033: my $result='';
3034: my $text='';
3035: if ($target eq 'edit') {
1.424 foxr 3036: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 3037: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.527 golterma 3038: $result.=&Apache::edit::start_table($token)."<tr><td>".&Apache::loncommon::insert_folding_button()
3039: ." ".&mt('Text Block')."</td>"
1.438 bisitz 3040: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 3041: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 3042: .'</span></td>'
1.550 raeburn 3043: .'<td><span id="math_'.$areaid.'">';
3044: if ($env{'environment.nocodemirror'}) {
3045: $result.=&Apache::lonhtmlcommon::dragmath_button($areaid,1);
3046: } else {
3047: $result.=' ';
3048: }
3049: $result.='</span></td>'
1.474 raeburn 3050: .'<td>'
3051: .&Apache::edit::insertlist($target,$token)
3052: .'</td>'
1.515 golterma 3053: .'<td class="LC_edit_problem_latexhelper">' .
1.474 raeburn 3054: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 3055: &Apache::edit::end_row().
1.362 albertel 3056: &Apache::edit::start_spanning_row()."\n".
1.255 www 3057: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 3058: }
3059: if ($target eq 'modified') {
1.219 albertel 3060: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 3061: }
3062: if ($target eq 'tex') {
3063: $result .= '\noindent ';
3064: }
3065: return $result;
1.34 albertel 3066: }
1.159 albertel 3067:
1.34 albertel 3068: sub start_endouttext {
1.159 albertel 3069: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3070: my $result='';
3071: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
3072: if ($target eq "modified") {
3073: $result='<endouttext />'.
1.377 albertel 3074: &Apache::edit::handle_insertafter('startouttext');
3075: }
1.404 albertel 3076:
3077: my $nesting =
3078: &Apache::lonxml::set_state('outtext',
3079: &Apache::lonxml::get_state('outtext')-1);
3080: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
3081: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
3082: &Apache::lonxml::set_state('outtext', 0);
3083: }
1.159 albertel 3084: return $result;
1.34 albertel 3085: }
1.159 albertel 3086:
1.34 albertel 3087: sub end_endouttext {
1.159 albertel 3088: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3089: my @result=('','');
3090: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
3091: return (@result);
1.34 albertel 3092: }
1.159 albertel 3093:
1.45 albertel 3094: sub delete_startouttext {
1.326 albertel 3095: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
3096: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 3097: my $text=$$parser['-1']->get_text("/endouttext");
3098: my $ntoken=$$parser['-1']->get_token();
3099: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
3100: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
3101: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
3102: # they did the last time round
3103: &Apache::lonxml::increasedepth($ntoken);
3104: &Apache::lonxml::decreasedepth($ntoken);
3105: return 1;
1.193 www 3106: }
3107:
3108: sub start_simpleeditbutton {
3109: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3110: my $result='';
1.284 albertel 3111: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 3112: ($target eq 'web') &&
1.330 albertel 3113: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 3114: my $url=$env{'request.noversionuri'};
1.193 www 3115: $url=~s/\?.*$//;
1.367 albertel 3116: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 3117: # Warning makes more sense and is more important on edit screen
1.442 bisitz 3118: # $result='<p class="LC_warning">'
3119: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
3120: # .&Apache::loncommon::help_open_topic('Caching')
3121: # .'</p>';
1.486 www 3122: $result.=&Apache::loncommon::head_subbox(
3123: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 3124: .&Apache::lonhtmlcommon::add_item_funclist(
3125: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
3126: .&mt('Edit').'</a>')
1.486 www 3127: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 3128:
1.193 www 3129: }
3130: return $result;
3131: }
3132:
3133: sub end_simpleeditbutton {
3134: return '';
1.45 albertel 3135: }
1.34 albertel 3136:
1.428 raeburn 3137: sub practice_problem_header {
3138: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
3139: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
3140: '</span>';
3141: }
3142:
1.479 raeburn 3143: sub randomizetry_problem_header {
3144: my ($problemstatus,$reqtries) = @_;
3145: my ($header,$text);
3146: if ($reqtries > 1) {
3147: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
3148: if (($problemstatus eq 'no') ||
3149: ($problemstatus eq 'no_feedback_ever')) {
3150: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3151: } else {
3152: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3153: }
3154: } else {
3155: $header = &mt('New Problem Variation Each Try');
3156: if (($problemstatus eq 'no') ||
3157: ($problemstatus eq 'no_feedback_ever')) {
3158: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
3159:
3160: } else {
3161: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
3162: }
3163: }
3164: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
3165: '<span class="LC_info">'.$text.'</span><hr />';
3166: }
3167:
3168: sub randomizetry_part_header {
3169: my ($problemstatus,$reqtries,$num) = @_;
3170: my ($header,$text);
3171: if ($reqtries eq 'none') {
3172: $header = &mt('No Question Variation');
3173: $text = &mt('For this question there will no new variation after a try.');
3174: } elsif ($reqtries > 1) {
3175: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
3176: if (($problemstatus eq 'no') ||
3177: ($problemstatus eq 'no_feedback_ever')) {
3178: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3179: } else {
3180: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3181: }
3182: } else {
3183: $header = &mt('New Question Variation For Each Try');
3184: if (($problemstatus eq 'no') ||
3185: ($problemstatus eq 'no_feedback_ever')) {
3186: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
3187: } else {
3188: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
3189: }
3190: }
3191: my $output;
3192: if ($num > 1) {
3193: $output .= '<hr />';
3194: }
3195: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
3196: '<span class="LC_info">'.$text.'</span><br /><br />';
3197: return $output;
3198: }
3199:
1.1 albertel 3200: 1;
3201: __END__
1.435 jms 3202:
3203: =pod
3204:
3205: =back
3206:
3207: =cut
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