Annotation of loncom/homework/structuretags.pm, revision 1.512.2.23.2.1
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.512.2.23.2. (raeburn 4:): # $Id: structuretags.pm,v 1.512.2.23 2019/11/07 13:59:19 raeburn Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.435 jms 30: =pod
31:
32: =head1 NAME
33:
34: Apache::structuretags
35:
36: =head1 SYNOPSIS
37:
38:
39: This is part of the LearningOnline Network with CAPA project
40: described at http://www.lon-capa.org.
41:
42:
43: =head1 NOTABLE SUBROUTINES
44:
45: =over
46:
47: =item
48:
49: =back
50:
51: =cut
52:
1.133 sakharuk 53:
1.1 albertel 54: package Apache::structuretags;
55:
56: use strict;
57: use Apache::lonnet;
1.101 sakharuk 58: use Apache::File();
1.147 www 59: use Apache::lonmenu;
1.210 albertel 60: use Apache::lonlocal;
1.231 sakharuk 61: use Apache::lonxml;
1.434 foxr 62: use Apache::londefdef;
1.338 albertel 63: use Apache::lonenc();
1.500 foxr 64: use Apache::loncommon();
1.267 albertel 65: use Time::HiRes qw( gettimeofday tv_interval );
1.356 www 66: use lib '/home/httpd/lib/perl/';
67: use LONCAPA;
68:
1.78 harris41 69: BEGIN {
1.469 www 70: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','translated','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startpartmarker','startouttext','endpartmarker','endouttext','simpleeditbutton','definetag'));
1.10 albertel 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:
195: sub start_tex {
1.326 albertel 196: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 197: my $result='';
1.383 albertel 198: if ($target ne 'edit' && $target ne 'modified') {
199: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
200: if ($target eq 'tex') {
1.434 foxr 201:
202: # If inside a table, occurrences of \\ must be removed;
203: # else the table blows up.
204:
205: if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
206: $bodytext =~ s/\\\\//g;
207: }
1.432 foxr 208: return $bodytext.'{}';
1.383 albertel 209: }
210: } elsif ($target eq "edit" ) {
211: my $bodytext =
212: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
213: my $result = &Apache::edit::tag_start($target,$token);
214: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
215: return $result;
216: } elsif ( $target eq "modified" ) {
217: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 218: }
1.198 sakharuk 219: return $result;;
1.10 albertel 220: }
221:
222: sub end_tex {
1.44 ng 223: return '';
1.9 albertel 224: }
225:
1.400 albertel 226: sub homework_js {
1.512.2.9 raeburn 227: my ($postsubmit,$timeout);
228: if (($env{'request.course.id'}) && ($env{'request.state'} ne 'construct')) {
229: my $crstype;
230: if (&Apache::loncommon::course_type() eq 'Community') {
231: $crstype = 'community';
232: } else {
233: if ($env{'course.'.$env{'request.course.id'}.'.internal.coursecode'}) {
234: $crstype = 'official';
235: } elsif ($env{'course.'.$env{'request.course.id'}.'.internal.textbook'}) {
236: $crstype = 'textbook';
237: } else {
238: $crstype = 'unofficial';
239: }
240: }
241: $postsubmit = $env{'course.'.$env{'request.course.id'}.'.internal.postsubmit'};
242: if ($postsubmit eq '') {
243: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
244: $postsubmit = $domdefs{'postsubmit'};
245: unless ($postsubmit eq 'off') {
246: $timeout = $domdefs{$crstype.'postsubtimeout'};
247: }
248: } elsif ($postsubmit eq '0') {
249: $postsubmit = 'off';
250: } elsif ($postsubmit eq '1') {
251: $postsubmit = 'on';
252: $timeout = $env{'course.'.$env{'request.course.id'}.'.internal.postsubtimeout'};
253: if ($timeout eq '') {
254: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
255: $timeout = $domdefs{$crstype.'postsubtimeout'};
256: }
257: }
258: if ($timeout eq '') {
259: $timeout = 60;
260: }
261: } else {
262: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'request.role.domain'});
263: $postsubmit = $domdefs{'postsubmit'};
264: unless ($postsubmit eq 'off') {
265: $timeout = 60;
266: }
267: }
268: my $jstimeout = 0;
269: if ($timeout) {
270: $jstimeout = 1000 * $timeout;
271: }
1.400 albertel 272: return &Apache::loncommon::resize_textarea_js().
1.512.2.11 raeburn 273: &Apache::loncommon::colorfuleditor_js().
1.416 raeburn 274: &setmode_javascript().
1.512.2.9 raeburn 275: <<"JS";
1.400 albertel 276: <script type="text/javascript">
1.483 raeburn 277: // <![CDATA[
1.494 raeburn 278: function setSubmittedPart (part,prefix) {
279: if (typeof(prefix) == 'undefined') {
280: this.document.lonhomework.submitted.value="part_"+part;
281: } else {
282: for (var i=0;i<this.document.lonhomework.elements.length;i++) {
283: if (this.document.lonhomework.elements[i].name == prefix+'submitted') {
284: this.document.lonhomework.elements[i].value="part_"+part;
285: }
286: }
287: }
1.400 albertel 288: }
289:
1.512.2.9 raeburn 290: function disableAutoComplete (id) {
291: var field = document.getElementById(id);
292: if (field != null && field != undefined){
293: if ('autocomplete' in field) {
294: field.autocomplete = "off";
295: } else {
296: field.setAttribute("autocomplete", "off");
297: }
298: }
299: }
300:
1.400 albertel 301: function image_response_click (which, e) {
302: init_geometry();
303: if (!e) { e = window.event; } //IE
304: var input_element = document.lonhomework.elements[which];
1.401 albertel 305: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 306: var token = token_element.value;
1.401 albertel 307: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 308: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
309: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
310: var click = x+':'+y;
311: input_element.value = click;
1.485 raeburn 312: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
1.400 albertel 313: }
1.512.2.9 raeburn 314:
315: var submithandled = 0;
316: var keypresshandled = 0;
317: var postsubmit = '$postsubmit';
318:
319: \$(document).ready(function(){
320: if (postsubmit != 'off') {
321: \$(document).keypress(function(event){
322: var keycode = (event.keyCode ? event.keyCode : event.which);
323: if ((keycode == '13') && (keypresshandled == 0)) {
324: if ( \$( document.activeElement ).hasClass("LC_textline") ) {
325: keypresshandled = 1;
326: var idsArray = \$( document.activeElement ).attr("id").split(/HWVAL_/);
327: if (idsArray.length) {
328: event.preventDefault();
329: var itemsArray = idsArray[1].split(/_/);
330: var buttonId = idsArray[0]+'submit_'+itemsArray[0];
331: \$("#"+buttonId).trigger("click");
332: }
333: }
334: }
335: });
336:
337: \$(document).delegate('form :submit', 'click', function( event ) {
338: if ( \$( this ).hasClass( "LC_hwk_submit" ) ) {
339: var buttonId = this.id;
340: var timeout = $jstimeout;
341: if (submithandled == 0) {
342: submithandled = 1;
343: \$( "#msg_"+buttonId ).css({"display": "inline","background-color": "#87cefa",
344: "color": "black","padding": "2px"}) ;
1.512.2.18 raeburn 345: if (( \$(this.form).attr("id") == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
1.512.2.9 raeburn 346: if (buttonId != "all_submit") {
347: \$( ".LC_status_"+buttonId ).hide();
1.512.2.18 raeburn 348: }
349: if (( "#"+buttonId+"_pressed" ).length) {
350: \$( "#"+buttonId+"_pressed" ).val( "1" );
1.512.2.9 raeburn 351: }
352: } else {
353: \$( ".LC_status_"+buttonId ).hide();
354: }
355: \$(this.form).submit();
356: \$( ".LC_hwk_submit" ).prop( "disabled", true);
357: \$( ".LC_textline" ).prop( "readonly", "readonly");
358: event.preventDefault();
359:
360: if (timeout > 0) {
361: setTimeout(function(){
362: \$( "#msg_"+buttonId ).css({"display": "none"});
1.512.2.18 raeburn 363: if (( \$(this.form).attr("id") == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
364: if (( "#"+buttonId+"_pressed" ).length) {
365: \$( "#"+buttonId+"_pressed" ).val( "" );
1.512.2.9 raeburn 366: }
367: }
368: \$( ".LC_hwk_submit" ).prop( "disabled", false);
369: \$( ".LC_textline" ).prop( "readonly", false);
370: submithandled = 0;
371: keypresshandled = 0;
372: }, timeout);
373: }
374: return true;
375: }
376: }
377: });
378: }
379: });
380:
1.483 raeburn 381: // ]]>
1.400 albertel 382: </script>
383: JS
384: }
385:
1.416 raeburn 386: sub setmode_javascript {
387: return <<"ENDSCRIPT";
388: <script type="text/javascript">
1.485 raeburn 389: // <![CDATA[
1.416 raeburn 390: function setmode(form,probmode) {
1.512.2.13 raeburn 391: var initial = form.problemmode.value;
1.416 raeburn 392: form.problemmode.value = probmode;
393: form.submit();
1.512.2.13 raeburn 394: form.problemmode.value = initial;
1.416 raeburn 395: }
1.485 raeburn 396: // ]]>
1.416 raeburn 397: </script>
398: ENDSCRIPT
399: }
400:
1.48 albertel 401: sub page_start {
1.345 albertel 402: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
403: $extra_head)=@_;
1.159 albertel 404: my %found;
1.207 albertel 405: foreach my $taginside (@$tagstack) {
1.159 albertel 406: foreach my $taglookedfor ('html','body','form') {
407: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
408: }
409: }
410:
1.343 albertel 411: if ($target eq 'tex') {
412: return
413: &Apache::londefdef::start_html($target,$token,$tagstack,
414: $parstack,$parser,$safeeval);
415: }
416:
1.474 raeburn 417: $extra_head .= &homework_js().
418: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
419: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
1.512.2.12 raeburn 420: my %textarea_args;
421: if (($env{'request.state'} ne 'construct') ||
422: ($env{'environment.nocodemirror'})) {
423: %textarea_args = (
1.474 raeburn 424: dragmath => 'math',
425: );
1.512.2.12 raeburn 426: }
1.474 raeburn 427: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 428: }
1.478 raeburn 429: my $is_task = ($env{'request.uri'} =~ /\.task$/);
1.512.2.9 raeburn 430: my ($needs_upload,$partlist);
1.495 raeburn 431: my ($symb)= &Apache::lonnet::whichuser();
432: my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
1.478 raeburn 433: if ($is_task) {
1.495 raeburn 434: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
1.493 raeburn 435: } else {
436: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.uploadedfiletypes") ne '') {
1.495 raeburn 437: unless ($env{'request.state'} eq 'construct') {
438: my $navmap = Apache::lonnavmaps::navmap->new();
439: if (ref($navmap)) {
440: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 441: my $is_page;
442: if (ref($mapres)) {
443: $is_page = $mapres->is_page();
444: }
445: unless ($is_page) {
1.495 raeburn 446: $needs_upload = 1;
447: }
1.512.2.9 raeburn 448: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
449: my $res = $navmap->getBySymb($symb);
450: if (ref($res)) {
451: $partlist = $res->parts();
452: }
453: }
1.495 raeburn 454: }
455: }
1.493 raeburn 456: } else {
457: unless ($env{'request.state'} eq 'construct') {
458: my $navmap = Apache::lonnavmaps::navmap->new();
459: if (ref($navmap)) {
1.495 raeburn 460: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 461: my $is_page;
462: if (ref($mapres)) {
463: $is_page = $mapres->is_page();
464: }
1.512.2.9 raeburn 465: if ($is_page) {
466: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
467: my $res = $navmap->getBySymb($symb);
468: if (ref($res)) {
469: $partlist = $res->parts();
470: }
471: }
472: } else {
1.495 raeburn 473: my $res = $navmap->getBySymb($symb);
474: if (ref($res)) {
1.512.2.9 raeburn 475: $partlist = $res->parts();
1.495 raeburn 476: if (ref($partlist) eq 'ARRAY') {
477: foreach my $part (@{$partlist}) {
478: my @types = $res->responseType($part);
479: my @ids = $res->responseIds($part);
480: for (my $i=0; $i < scalar(@ids); $i++) {
481: if ($types[$i] eq 'essay') {
482: my $partid = $part.'_'.$ids[$i];
483: if (&Apache::lonnet::EXT("resource.$partid.uploadedfiletypes") ne '') {
484: $needs_upload = 1;
485: last;
486: }
1.493 raeburn 487: }
488: }
489: }
1.495 raeburn 490: }
491: }
1.493 raeburn 492: }
493: }
494: }
495: }
1.495 raeburn 496: if ($needs_upload) {
1.512.2.17 raeburn 497: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js().
498: '<script type="text/javascript" '.
499: 'src="/res/adm/includes/file_upload.js"></script>';
1.495 raeburn 500: }
1.478 raeburn 501: }
1.425 raeburn 502:
1.344 albertel 503: my %body_args;
504: if (defined($found{'html'})) {
505: $body_args{'skip_phases'}{'head'}=1;
506: } else {
1.343 albertel 507:
1.345 albertel 508: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 509:
1.379 albertel 510: $extra_head .= &Apache::londefdef::generate_css_links();
511:
1.384 albertel 512: if ($env{'request.state'} eq 'construct') {
1.343 albertel 513: $extra_head.=&Apache::edit::js_change_detection().
514: "<script type=\"text/javascript\">\n".
515: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
516: &Apache::loncommon::browser_and_searcher_javascript().
517: "\n</script>\n";
1.512.2.9 raeburn 518: if ($target eq 'edit') {
519: $extra_head .= &Apache::edit::js_update_linknum();
520: }
1.343 albertel 521: }
1.159 albertel 522: }
1.343 albertel 523:
1.446 bisitz 524: my $pageheader = '';
1.344 albertel 525: if (defined($found{'body'})) {
526: $body_args{'skip_phases'}{'body'}=1;
527: } elsif (!defined($found{'body'})
528: && $env{'request.state'} eq 'construct') {
1.343 albertel 529: if ($target eq 'web' || $target eq 'edit') {
1.512.2.3 raeburn 530: # Breadcrumbs for Authoring Space
1.450 bisitz 531: &Apache::lonhtmlcommon::clear_breadcrumbs();
532: &Apache::lonhtmlcommon::add_breadcrumb({
1.512.2.3 raeburn 533: 'text' => 'Authoring Space',
1.497 raeburn 534: 'href' => &Apache::loncommon::authorspace($env{'request.uri'}),
1.450 bisitz 535: });
1.460 droeschl 536: # breadcrumbs (and tools) will be created
537: # in start_page->bodytag->innerregister
538:
1.450 bisitz 539: # FIXME Where are we?
540: # &Apache::lonhtmlcommon::add_breadcrumb({
541: # 'text' => 'Problem Editing', # 'Problem Testing'
542: # 'href' => '',
543: # });
1.460 droeschl 544: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 545: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 546: }
1.272 albertel 547: } elsif (!defined($found{'body'})) {
1.343 albertel 548: my %add_entries;
1.159 albertel 549: my $background=&Apache::lonxml::get_param('background',$parstack,
550: $safeeval);
1.343 albertel 551: if ($background ne '' ) {
552: $add_entries{'background'} = $background;
553: }
1.344 albertel 554:
1.290 albertel 555: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
556: $safeeval);
1.446 bisitz 557: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 558:
1.446 bisitz 559: $body_args{'bgcolor'} = $bgcolor;
560: # $body_args{'no_title'} = 1;
561: $body_args{'force_register'} = 1;
562: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 563: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 564: $body_args{'only_body'} = 1;
1.512.2.7 raeburn 565: } elsif ($target eq 'web') {
566: $body_args{'print_suppress'} = 1;
1.446 bisitz 567: }
1.344 albertel 568: }
1.365 albertel 569: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 570: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
571: \%body_args);
1.446 bisitz 572: $page_start .= $pageheader;
1.462 raeburn 573: if (!defined($found{'body'})
574: && $env{'request.state'} ne 'construct'
575: && ($target eq 'web' || $target eq 'webgrade')) {
576:
577: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
578: if ($symb eq '' && !$publicuser) {
579: $page_start .= '<p class="LC_info">'
580: .&mt('Browsing resource, all submissions are temporary.')
581: .'</p>';
1.457 bisitz 582: }
1.344 albertel 583: }
584:
1.409 albertel 585: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 586: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 587: }
588: my $form_tag_start;
589: if (!defined($found{'form'})) {
1.337 albertel 590: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 591: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 592: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 593: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 594: $form_tag_start.=$uri.'" ';
595: if ($target eq 'edit') {
596: $form_tag_start.=&Apache::edit::form_change_detection();
597: }
1.493 raeburn 598: my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
599: my ($path,$multiresp) =
600: &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
1.495 raeburn 601: if (($is_task) || ($needs_upload)) {
602: $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
1.478 raeburn 603: }
1.368 albertel 604: $form_tag_start.='>'."\n";
1.355 albertel 605:
606: if ($symb =~ /\S/) {
607: $symb=
608: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
609: $form_tag_start.=
1.368 albertel 610: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 611: }
1.159 albertel 612: }
1.512.2.9 raeburn 613: return ($page_start,$form_tag_start,$partlist);
1.105 albertel 614: }
615:
1.141 matthew 616: #use Time::HiRes();
1.105 albertel 617: sub get_resource_name {
1.159 albertel 618: my ($parstack,$safeeval)=@_;
1.388 foxr 619: my $name;
1.204 albertel 620: if (defined($Apache::lonhomework::name)) {
1.388 foxr 621: $name = $Apache::lonhomework::name;
622: } else {
623: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 624: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 625: if ($name eq '') {
626: $name=&Apache::lonnet::EXT('resource.title');
627: if ($name eq 'con_lost') { $name = ''; }
628: }
629: if ($name!~/\S+/) {
630: $name=$env{'request.uri'};
631: $name=~s-.*/([^/]+)$-$1-;
632: }
633: # The name has had html tags escaped:
634:
635: $name=~s/</</gs;
636: $name=~s/>/>/gs;
637:
638: $Apache::lonhomework::name=$name;
1.204 albertel 639: }
1.159 albertel 640: return $name;
1.105 albertel 641: }
642:
643: sub setup_rndseed {
1.512.2.9 raeburn 644: my ($safeeval,$target,$probpartlist)=@_;
1.367 albertel 645: my ($symb)=&Apache::lonnet::whichuser();
1.512.2.19 raeburn 646: my ($questiontype,$set_safespace,$rndseed,$numtries,$reqtries);
1.479 raeburn 647: if ($target eq 'analyze') {
648: $questiontype = $env{'form.grade_questiontype'};
649: }
650: unless (defined($questiontype)) {
651: $questiontype = $Apache::lonhomework::type;
652: }
1.512.2.19 raeburn 653: if ($Apache::lonhomework::type eq 'randomizetry') {
654: my $partfortries = $Apache::inputtags::part;
1.512.2.22 raeburn 655: #
656: # Where question type is "randomizetry" for a problem containing
657: # a single part (and unless type is explicitly set to not be
658: # "randomizetry" for that part), the number of tries used to
659: # determine randomization will be for that part, and randomization
660: # from calls to &random() in a perl script block before the part tag,
661: # will change based on the number of tries, and value of the
662: # "randomizeontries" parameter in effect for the single part.
663: #
1.512.2.19 raeburn 664: if (ref($probpartlist) eq 'ARRAY') {
1.512.2.22 raeburn 665: if ((@{$probpartlist} == 1) && ($probpartlist->[0] ne $partfortries)) {
666: if (&Apache::lonnet::EXT('resource.'.$probpartlist->[0].'.type') eq 'randomizetry') {
1.512.2.21 raeburn 667: $partfortries = $probpartlist->[0];
668: } else {
669: $partfortries = '';
670: }
1.512.2.19 raeburn 671: }
672: }
1.512.2.21 raeburn 673: if ($partfortries ne '') {
674: $numtries = $Apache::lonhomework::history{"resource.$partfortries.tries"};
675: $reqtries = &Apache::lonnet::EXT("resource.$partfortries.randomizeontries");
676: }
1.512.2.19 raeburn 677: }
1.512.2.14 raeburn 678: if (($env{'request.state'} eq "construct")
679: || ($symb eq '')
680: || ($Apache::lonhomework::type eq 'practice')
681: || ($Apache::lonhomework::history{'resource.CODE'})
682: || (($env{'form.code_for_randomlist'}) && ($target eq 'analyze'))) {
1.316 www 683: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 684: ['rndseed']);
1.284 albertel 685: $rndseed=$env{'form.rndseed'};
1.159 albertel 686: if (!$rndseed) {
1.162 albertel 687: $rndseed=$Apache::lonhomework::history{'rndseed'};
688: if (!$rndseed) {
689: $rndseed=time;
690: }
1.512.2.14 raeburn 691: unless ($env{'form.code_for_randomlist'}) {
692: $env{'form.rndseed'}=$rndseed;
693: }
1.162 albertel 694: }
1.512.2.20 raeburn 695: if ((($env{'request.state'} eq "construct") || ($symb eq '')) &&
1.479 raeburn 696: ($Apache::lonhomework::type eq 'randomizetry')) {
1.512.2.19 raeburn 697: if ($numtries) {
698: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
699: my $inc = int($numtries/$reqtries);
700: $rndseed += $inc;
701: } else {
702: $rndseed += $numtries;
703: }
1.479 raeburn 704: }
1.480 raeburn 705: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 706: }
1.374 albertel 707: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
708: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 709: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 710: srand(time);
711: $rndseed=int(rand(2100000000));
1.284 albertel 712: $env{'form.rndseed'}=$rndseed;
713: delete($env{'form.resetdata'});
714: delete($env{'form.newrandomization'});
1.159 albertel 715: }
1.488 www 716: $rndseed=~s/\,/\:/g;
717: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 718: if (defined($rndseed)) {
719: my ($c1,$c2)=split(/\:/,$rndseed);
720: unless ($c2) { $c2=0; }
721: unless (($c1==int($c1)) && ($c2==int($c2))) {
722: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
723: }
1.187 albertel 724: }
1.512.2.14 raeburn 725: if (($env{'form.code_for_randomlist'}) && ($target eq 'analyze')) {
726: $env{'form.CODE'} = $env{'form.code_for_randomlist'};
727: $rndseed=&Apache::lonnet::rndseed();
728: undef($env{'form.CODE'});
729: } elsif ($Apache::lonhomework::history{'resource.CODE'}) {
1.247 albertel 730: $rndseed=&Apache::lonnet::rndseed();
731: }
1.479 raeburn 732: $set_safespace = 1;
733: } elsif ($questiontype eq 'randomizetry') {
734: if ($target eq 'analyze') {
735: if (defined($env{'form.grade_rndseed'})) {
736: $rndseed = $env{'form.grade_rndseed'};
737: }
738: }
739: unless (($target eq 'analyze') && (defined($rndseed))) {
740: $rndseed=&Apache::lonnet::rndseed();
1.512.2.19 raeburn 741: my $curr_try = $numtries;
1.479 raeburn 742: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
743: $curr_try ++;
744: }
745: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
746: $rndseed = $1;
747: }
748: if ($curr_try) {
749: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
750: my $inc = int(($curr_try-1)/$reqtries);
751: $rndseed += $inc;
752: } else {
753: $rndseed += $curr_try;
754: }
755: }
756: }
757: $set_safespace = 1;
1.512.2.9 raeburn 758: if ($target eq 'grade') {
759: $Apache::lonhomework::rawrndseed = $rndseed;
760: }
1.479 raeburn 761: }
762: if ($set_safespace) {
763: if ($safeeval) {
764: &Apache::lonxml::debug("Setting rndseed to $rndseed");
765: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
766: }
767: }
768: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
769: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 770: }
771: return $rndseed;
1.105 albertel 772: }
773:
1.268 albertel 774: sub remember_problem_state {
775: return '
1.284 albertel 776: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
777: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
778: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 779: }
780:
1.487 www 781: sub problem_edit_action_button {
782: my ($name,$action,$accesskey,$text,$flag)=@_;
783: my $actionscript="setmode(this.form,'$action')";
784: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
785: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
786: }
787:
1.423 www 788: sub problem_edit_buttons {
1.487 www 789: my ($mode)=@_;
1.512.2.11 raeburn 790: # Buttons that save
791: my $result = '<div style="float:right">';
792: if ($mode eq 'editxml') {
793: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
794: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
795: } else {
796: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
797: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
798: }
799: $result.="\n</div>\n";
1.487 www 800: # Buttons that do not save
1.512.2.11 raeburn 801: $result .= '<div>'.
1.487 www 802: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
803: if ($mode eq 'editxml') {
804: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
805: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
1.512.2.11 raeburn 806: if ($env{'environment.nocodemirror'}) {
807: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
808: }
1.487 www 809: } else {
810: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
811: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
812: }
813: $result.="\n</div>";
814: return $result;
1.423 www 815: }
816:
817: sub problem_edit_header {
1.512.2.11 raeburn 818: my ($mode)=@_;
819: my $return = '<input type="hidden" name="submitted" value="edit" />'.
1.487 www 820: &remember_problem_state('edit').'
1.512.2.11 raeburn 821: <div class="LC_edit_problem_header">
822: <div class="LC_edit_problem_header_title">
823: '.&mt('Problem Editing').$mode.&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
824: </div><div class="LC_edit_actionbar" id="actionbar">'.
825: '<input type="hidden" name="problemmode" value="saveedit" />'.
826: &problem_edit_buttons();
827:
828: $return .= '</div></div>' . &Apache::lonxml::message_location();
829: $return .= '<link rel="stylesheet" href="/adm/codemirror/codemirror-combined.css" />
830: <script type="text/javascript" src="/adm/codemirror/codemirror-compressed-colorful.js"></script>';
831:
832: $return .= '<script type="text/javascript" src="/adm/jQuery/addons/jquery-scrolltofixed.js"></script>
833: <script type="text/javascript">
834: // unless internet explorer
835: if (!(window.navigator.appName == "Microsoft Internet Explorer" && (document.documentMode || document.compatMode))){
836: $(document).ready(
837: function() {
838: $(\'.LC_edit_actionbar\').scrollToFixed(
839: {
840: fixed: function(){
841: //$(this).find(\'.LC_edit_actionbar\').css(\'height\', \'31px\');
842: $(this).find(\'.LC_edit_actionbar\');
843: }
844: }
845: );
846: }
847: );
848: }
849: </script>
850: <table id="LC_edit_problem_colorful" border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
851: return $return;
1.105 albertel 852: }
853:
1.512.2.11 raeburn 854:
1.105 albertel 855: sub problem_edit_footer {
1.512.2.11 raeburn 856: my $resource = $env{'request.ambiguous'};
1.412 albertel 857: return '</td></tr></table><br />
858: <div class="LC_edit_problem_footer">
1.453 bisitz 859: <hr />'.
1.423 www 860: &problem_edit_buttons().'
1.459 bisitz 861: <hr style="clear:both;" />
1.512.2.11 raeburn 862: <script type="text/javascript">
863: restoreState("'.$resource.'");
864: restoreScrollPosition("'.$resource.'");
865: </script>
1.412 albertel 866: </div>
867: '.
1.342 albertel 868: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 869: }
870:
1.235 albertel 871: sub option {
872: my ($value,$name) = @_;
873: my $result ="<option value='".$value."' ";
1.284 albertel 874: if ($env{'form.'.$name} eq $value) {
1.235 albertel 875: $result.=" selected='on' ";
876: }
877: $result.='>';
878: return $result;
879: }
880:
1.105 albertel 881: sub problem_web_to_edit_header {
1.159 albertel 882: my ($rndseed)=@_;
1.406 albertel 883: my $result .= '<div class="LC_edit_problem_header">';
884:
885: if (!$Apache::lonhomework::parsing_a_task) {
886: $result .=
887: '<div class="LC_edit_problem_header_title">'.
888: &mt('Problem Testing').
889: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
890: '</div>';
891: } else {
892: $result .=
893: '<div class="LC_edit_problem_header_title">'.
894: &mt('Task Testing').
895: '</div>';
896: }
897:
1.315 albertel 898: my $show_all_foils_text =
899: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 900: &mt('Show All Instances')
901: : &mt('Show All Foils');
1.315 albertel 902:
1.452 bisitz 903: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
904: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 905: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 906: $show_all.= ' /> '.$show_all_foils_text
907: .'</label></span>';
1.406 albertel 908:
909:
1.384 albertel 910:
1.406 albertel 911: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 912: if (!$Apache::lonhomework::parsing_a_task) {
913: $result.="
1.406 albertel 914: <div class='LC_edit_problem_header_row1'>
915: <span class=\"LC_nobreak\">
1.405 albertel 916: ".&mt("Problem Status:")."
1.235 albertel 917: <select name='problemstate'>
1.270 albertel 918: <option value=''></option>
1.235 albertel 919: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
920: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
921: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
922: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
923: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
924: </select>
1.406 albertel 925: </span>
926: <span class=\"LC_nobreak\">
1.405 albertel 927: ".&mt("Problem Type:")."
1.235 albertel 928: <select name='problemtype'>
1.270 albertel 929: <option value=''></option>
1.512.2.1 raeburn 930: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 931: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 932: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 933: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
934: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
935: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 936: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 937: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 938: </select>
1.406 albertel 939: </span>
940: $show_all
941: </div>
942: <div class='LC_edit_problem_header_row2'>
943: <span class=\"LC_nobreak\">
1.405 albertel 944: ".&mt("Feedback Mode:")."
1.235 albertel 945: <select name='problemstatus'>
946: <option value=''></option>
1.242 albertel 947: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.512.2.6 raeburn 948: ".&option('no', 'problemstatus').&mt("Don't Show Incorrect/Correct Feedback")."</option>
1.405 albertel 949: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 950: </select>
1.406 albertel 951: </span>
952: ";
953:
1.376 albertel 954: } elsif ($Apache::lonhomework::parsing_a_task) {
955: $result.="
1.406 albertel 956: <div class='LC_edit_problem_header_row1'>
957: <span class=\"LC_nobreak\">
1.405 albertel 958: ".&mt("Problem Status:")."
1.376 albertel 959: <select name='problemstate'>
960: <option value=''></option>
961: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
962: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
963: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
964: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
965: </select>
1.406 albertel 966: </span>
967: $show_all
968: ";
969: }
970: $result.='
971: <span class="LC_nobreak">
972: '.&mt('Apply style file: ').'
973: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
974: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
975: </span>
1.422 www 976: </div>
977: <div class="LC_edit_problem_header_row1">'.
978: &Apache::lonxml::renderingoptions().'
1.406 albertel 979: </div>
980: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
981: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
982: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
983: </div>
1.453 bisitz 984: <hr />
1.406 albertel 985: <div class="LC_edit_problem_header_randomize_row">
986: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
987: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 988: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 989: $rndseed.'"
990: onchange="javascript:document.lonhomework.changerandseed.click()" />';
991:
992: if (!$Apache::lonhomework::parsing_a_task) {
993: my $numtoanalyze=$env{'form.numtoanalyze'};
994: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 995: $result .= '<span class="LC_nobreak">'.
996: &mt('[_1] for [_2] versions.',
1.416 raeburn 997: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 998: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
999: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 1000: $numtoanalyze.'" size="5" />').
1001: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
1002: '</span>';
1003:
1.313 albertel 1004: }
1.406 albertel 1005:
1006: $result.='
1007: </div>
1.453 bisitz 1008: <hr />
1.447 bisitz 1009: <div>';
1.416 raeburn 1010: $result.='<input type="hidden" name="problemmode" value="view" />';
1011: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
1012: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
1013: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
1014: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 1015: $result.='
1016: </div>
1.453 bisitz 1017: <hr />
1.409 albertel 1018: '.&Apache::lonxml::message_location().'
1.406 albertel 1019: </div>';
1.159 albertel 1020: return $result;
1.48 albertel 1021: }
1022:
1.65 albertel 1023: sub initialize_storage {
1.357 albertel 1024: my ($given_symb) = @_;
1.353 albertel 1025: undef(%Apache::lonhomework::results);
1026: undef(%Apache::lonhomework::history);
1.357 albertel 1027: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1028: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 1029:
1030: # anonymous users (CODEd exams) have no data
1031: if ($name eq 'anonymous'
1032: && !defined($domain)) {
1033: return;
1034: }
1035:
1.333 albertel 1036: if ($env{'request.state'} eq 'construct'
1037: || $symb eq ''
1038: || $Apache::lonhomework::type eq 'practice') {
1039:
1040: my $namespace = $symb || $env{'request.uri'};
1041: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 1042: ($env{'form.resetdata'} eq &mt('New Problem Variation')
1043: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 1044: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1045: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
1046: &Apache::lonxml::debug("Attempt reset");
1047: }
1.159 albertel 1048: %Apache::lonhomework::history=
1.333 albertel 1049: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.512.2.9 raeburn 1050: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1051: &Apache::lonxml::debug("Return message of $temp");
1052: } else {
1053: %Apache::lonhomework::history=
1054: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1055: }
1.353 albertel 1056:
1.159 albertel 1057: #ignore error conditions
1.512.2.9 raeburn 1058: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1059: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 1060: }
1061:
1.435 jms 1062: =pod
1063:
1064: =item finalize_storage()
1065:
1.512.2.9 raeburn 1066: Stores away the result hash to a student's environment;
1067: checks form.grade_ for specific values, otherwise stores
1068: to the running user's environment.
1069:
1070: &check_correctness_changes() is called in two circumstances
1071: in which the results hash is to be stored permanently, for
1072: grading triggered by a student's submission, where feedback on
1073: correctness is to be provided to the student.
1074:
1075: 1. Immediately prior to storing the results hash
1076:
1077: To handle the case where a student's submission (and award) were
1078: stored after history was retrieved in &initialize_storage(), e.g.,
1079: if a student submitted answers in quick succession (e.g., from
1080: multiple tabs). &Apache::inputtags::hidealldata() is called for
1081: any parts with out-of-order storage (i.e., correct then incorrect,
1082: where awarded >= 1 when correct).
1083:
1084: 2. Immediately after storing the results hash
1085:
1086: To handle the case where lond on the student's homeserver returns
1087: delay:N -- where N is the number of transactions between the last
1088: retrieved in &initialize_storage() and the last stored immediately
1089: before permanent storage of the current transaction via
1090: lond::store_handler(). &Apache::grades::makehidden() is called
1091: for any parts with out-of-order storage (i.e., correct then incorrect,
1092: where awarded >= 1 when correct).
1093:
1094: Will call &store_aggregates() to increment totals for attempts,
1095: students, and corrects, if running user has student role.
1.435 jms 1096:
1097: =cut
1098:
1099:
1.65 albertel 1100: sub finalize_storage {
1.357 albertel 1101: my ($given_symb) = @_;
1.159 albertel 1102: my $result;
1.289 albertel 1103: if (%Apache::lonhomework::results) {
1.323 albertel 1104: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
1105: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 1106: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1107: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 1108: if ($env{'request.state'} eq 'construct'
1109: || $symb eq ''
1110: || $Apache::lonhomework::type eq 'practice') {
1111: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 1112: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 1113: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 1114: $namespace,'',$domain,$name);
1.159 albertel 1115: &Apache::lonxml::debug('Construct Store return message:'.$result);
1116: } else {
1.512.2.9 raeburn 1117: my ($laststore,$checkedparts,@parts,%postcorrect);
1118: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1119: (!$Apache::lonhomework::scantronmode) && (!defined($env{'form.grade_symb'})) &&
1120: (!defined($env{'form.grade_courseid'}))) {
1121: if ($Apache::lonhomework::history{'version'}) {
1122: $laststore = $Apache::lonhomework::history{'version'}.'='.
1123: $Apache::lonhomework::history{'timestamp'};
1124: } else {
1125: $laststore = '0=0';
1126: }
1127: my %record = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1128: if ($record{'version'}) {
1129: my ($newversion,$oldversion,$oldtimestamp);
1130: if ($Apache::lonhomework::history{'version'}) {
1131: $oldversion = $Apache::lonhomework::history{'version'};
1132: $oldtimestamp = $Apache::lonhomework::history{'timestamp'};
1133: } else {
1134: $oldversion = 0;
1135: $oldtimestamp = 0;
1136: }
1137: if ($record{'version'} > $oldversion) {
1138: if ($record{'timestamp'} >= $oldtimestamp) {
1139: $laststore = $record{'version'}.'='.$record{'timestamp'};
1140: $newversion = $record{'version'} + 1;
1141: $checkedparts = 1;
1142: foreach my $key (keys(%Apache::lonhomework::results)) {
1143: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1144: my $part = $1;
1145: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1146: push(@parts,$part);
1147: }
1148: }
1149: }
1150: if (@parts) {
1151: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1152: \%record,\@parts,$newversion,
1153: $oldversion);
1154: if (@parts_to_hide) {
1155: foreach my $part (@parts_to_hide) {
1156: $postcorrect{$part} = 1;
1157: &Apache::inputtags::hidealldata($part);
1158: }
1159: }
1160: }
1161: }
1162: }
1163: }
1164: }
1.159 albertel 1165: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
1.512.2.9 raeburn 1166: $symb,$courseid,$domain,$name,$laststore);
1167: if ($result =~ /^delay\:(\d+)$/) {
1168: my $numtrans = $1;
1169: my ($oldversion) = split(/=/,$laststore);
1170: if ($numtrans) {
1171: my $newversion = $oldversion + 1 + $numtrans;
1172: my @possparts;
1173: if ($checkedparts) {
1174: foreach my $part (@parts) {
1175: unless ($postcorrect{$part}) {
1176: push(@possparts,$part);
1177: }
1178: }
1179: } else {
1180: foreach my $key (keys(%Apache::lonhomework::results)) {
1181: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1182: my $part = $1;
1183: unless ($postcorrect{$part}) {
1184: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1185: push(@possparts,$part);
1186: }
1187: }
1188: }
1189: }
1190: }
1191: if (@possparts) {
1192: my %newrecord = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1193: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1194: \%newrecord,\@possparts,$newversion,
1195: $oldversion);
1196: if (@parts_to_hide) {
1197: my $partslist = join(',',@parts_to_hide);
1198: &Apache::grades::makehidden($newversion,$partslist,\%newrecord,$symb,$domain,$name,1);
1199: }
1200: }
1201: }
1202: }
1.159 albertel 1203: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 1204: &store_aggregates($symb,$courseid);
1.159 albertel 1205: }
1.323 albertel 1206: } else {
1207: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 1208: }
1.159 albertel 1209: return $result;
1.65 albertel 1210: }
1211:
1.435 jms 1212: =pod
1213:
1.512.2.9 raeburn 1214: =item check_correctness_changes()
1215:
1216: For all parts for which current results contain a solved status
1217: of "incorrect_attempted", check if there was a transaction in which
1218: solved was set to "correct_by_student" in the time since the last
1219: transaction (retrieved when &initialize_storage() was called i.e.,
1220: when &start_problem() was called), unless:
1221: (a) questiontype parameter is set to survey or anonymous survey (+/- credit)
1222: (b) problemstatus is set to no or no_feedback_ever
1223: If such a transaction exists, and did not occur after "reset status"
1224: by a user with grading privileges, then the current transaction is an
1225: example of an out-of-order transaction (i.e., incorrect occurring after
1226: correct). Accordingly, the current transaction should be hidden.
1227:
1228: =cut
1229:
1230:
1231: sub check_correctness_changes {
1232: my ($symb,$courseid,$domain,$name,$record,$parts,$newversion,$oldversion) = @_;
1233: my @parts_to_hide;
1234: unless ((ref($record) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
1235: return @parts_to_hide;
1236: }
1237: if (@{$parts}) {
1238: my $usec;
1239: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1240: ($env{'request.course.id'} eq $courseid)) {
1241: $usec = $env{'request.course.sec'};
1242: } else {
1243: $usec = &Apache::lonnet::getsection($domain,$name,$courseid);
1244: }
1245: foreach my $id (@{$parts}) {
1246: next if (($Apache::lonhomework::results{'resource.'.$id.'.type'} =~ /survey/) ||
1247: (&Apache::lonnet::EXT("resource.$id.problemstatus",$symb,
1248: $domain,$name,$usec,undef,$courseid) =~ /^no/));
1249: my $reset;
1250: for (my $i=$newversion-1; $i>=$oldversion; $i--) {
1251: if (($record->{$i.':resource.'.$id.'.regrader'}) &&
1252: ($record->{$i.':resource.'.$id.'.tries'} eq '') &&
1253: ($record->{$i.':resource.'.$id.'.award'} eq '')) {
1254: $reset = 1;
1255: } elsif (($record->{$i.":resource.$id.solved"} eq 'correct_by_student') &&
1256: ($record->{$i.":resource.$id.awarded"} >= 1)) {
1257: unless ($reset) {
1258: push(@parts_to_hide,$id);
1259: last;
1260: }
1261: }
1262: }
1263: }
1264: }
1265: return @parts_to_hide;
1266: }
1267:
1268: =pod
1269:
1.435 jms 1270: item store_aggregates()
1271:
1272: Sends hash of values to be incremented in nohist_resourcetracker.db
1273: for the course. Increments total number of attempts, unique students
1274: and corrects for each part for an instance of a problem, as appropriate.
1275:
1276: =cut
1277:
1.285 raeburn 1278: sub store_aggregates {
1279: my ($symb,$courseid) = @_;
1.479 raeburn 1280: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 1281: my @parts;
1.288 albertel 1282: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
1283: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 1284: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 1285: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 1286: push(@parts, $1);
1.285 raeburn 1287: }
1288: }
1.286 albertel 1289: foreach my $part (@parts) {
1.470 raeburn 1290: if ($env{'request.role'} =~/^st/) {
1291: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
1292: eq 'APPROX_ANS' ||
1293: $Apache::lonhomework::results{'resource.'.$part.'.award'}
1294: eq 'EXACT_ANS') {
1295: $aggregate{$symb."\0".$part."\0correct"} = 1;
1296: }
1297: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1298: $aggregate{$symb."\0".$part."\0users"} = 1;
1299: } else {
1300: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1301: if ($last_reset) {
1302: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1303: $aggregate{$symb."\0".$part."\0users"} = 1;
1304: }
1305: }
1306: }
1307: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 1308: }
1.470 raeburn 1309: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 1310: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
1311: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
1312: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
1313: $randtrycounter{$symb."\0".$part} = 1;
1314: } else {
1315: $anoncounter{$symb."\0".$part} = 1;
1316: }
1.470 raeburn 1317: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
1318: if ($needsrelease) {
1319: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
1320: if ($curr_required eq '') {
1.471 raeburn 1321: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1322: } else {
1323: my ($currmajor,$currminor) = split(/\./,$curr_required);
1324: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
1325: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 1326: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1327: }
1.292 raeburn 1328: }
1329: }
1.285 raeburn 1330: }
1331: }
1.512.2.9 raeburn 1332: if (keys(%aggregate) > 0) {
1.289 albertel 1333: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 1334: $cdomain,$cname);
1335: }
1.472 raeburn 1336: if (keys(%anoncounter) > 0) {
1.481 raeburn 1337: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
1338: $cdomain,$cname);
1.472 raeburn 1339: }
1.479 raeburn 1340: if (keys(%randtrycounter) > 0) {
1.481 raeburn 1341: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
1342: $cdomain,$cname);
1.479 raeburn 1343: }
1.292 raeburn 1344: }
1.289 albertel 1345:
1.65 albertel 1346: sub checkout_msg {
1.211 albertel 1347: my %lt=&Apache::lonlocal::texthash(
1348: 'resource'=>'The resource needs to be checked out',
1349: '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.',
1350: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
1.512.2.1 raeburn 1351: 'checkout'=>'Check out Exam for Viewing',
1352: 'checkout?'=>'Check out Exam?');
1.352 albertel 1353: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 1354: return (<<ENDCHECKOUT);
1.211 albertel 1355: <h2>$lt{'resource'}</h2>
1356: <p>$lt{'id_expln'}</p>
1.449 bisitz 1357: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 1358: <form name="checkout" method="post" action="$uri">
1.91 albertel 1359: <input type="hidden" name="doescheckout" value="yes" />
1.512.2.4 raeburn 1360: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onclick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 1361: </form>
1362: ENDCHECKOUT
1363: }
1364:
1.252 albertel 1365: sub firstaccess_msg {
1.253 albertel 1366: my ($time,$symb)=@_;
1.414 albertel 1367: my $result;
1368: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1369: if ($interval[1] eq 'map') {
1370: my ($map)=&Apache::lonnet::decode_symb($symb);
1371: my $foldertitle=&Apache::lonnet::gettitle($map);
1372:
1373: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 1374: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
1375: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1376: ,$foldertitle,$time)."</p>";
1.414 albertel 1377: } elsif ($interval[1] eq 'course') {
1378: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 1379: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 1380: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 1381: ,$course,$time)."</p>";
1.414 albertel 1382: } else {
1383: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1384: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1385: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1386: ,$title,$time)."</p>";
1.414 albertel 1387: }
1.352 albertel 1388: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1389: my $buttontext = &mt('Show Resource');
1390: my $timertext = &mt('Start Timer?');
1.414 albertel 1391: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1392: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1393: <input type="hidden" name="markaccess" value="yes" />
1.512.2.4 raeburn 1394: <input type="button" name="accessbutton" value="$buttontext" onclick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1395: </form>
1396: ENDCHECKOUT
1.414 albertel 1397: return $result;
1.252 albertel 1398: }
1399:
1.204 albertel 1400: sub init_problem_globals {
1401: my ($type)=@_;
1402: #initialize globals
1.308 foxr 1403: # For problems, we start out in part 0 (outside a <part> tag).
1404: # and part 0 is used to describe the main body of the <problem>
1405: #
1.204 albertel 1406: if ($type eq 'problem') {
1407: $Apache::inputtags::part='0';
1408: @Apache::inputtags::partlist=('0');
1.405 albertel 1409: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1410: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1411:
1.266 albertel 1412: } elsif ($type eq 'library') {
1.204 albertel 1413: $Apache::inputtags::part='';
1414: @Apache::inputtags::partlist=();
1.405 albertel 1415: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1416: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1417:
1.304 albertel 1418: } elsif ($type eq 'Task') {
1419: $Apache::inputtags::part='0';
1420: @Apache::inputtags::partlist=('0');
1.405 albertel 1421: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1422: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1423: }
1.477 www 1424: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1425: @Apache::inputtags::responselist = ();
1426: @Apache::inputtags::importlist = ();
1427: @Apache::inputtags::previous=();
1428: @Apache::inputtags::previous_version=();
1.512.2.10 raeburn 1429: $Apache::inputtags::leniency='';
1.204 albertel 1430: $Apache::structuretags::printanswer='No';
1431: @Apache::structuretags::whileconds=();
1432: @Apache::structuretags::whilebody=();
1433: @Apache::structuretags::whileline=();
1434: $Apache::lonhomework::scantronmode=0;
1.512.2.21 raeburn 1435: $Apache::lonhomework::randomizetrypart=0;
1.204 albertel 1436: undef($Apache::lonhomework::name);
1.358 albertel 1437: undef($Apache::lonhomework::default_type);
1438: undef($Apache::lonhomework::type);
1.204 albertel 1439: }
1440:
1441: sub reset_problem_globals {
1442: my ($type)=@_;
1443: undef(%Apache::lonhomework::history);
1444: undef(%Apache::lonhomework::results);
1445: undef($Apache::inputtags::part);
1.512.2.10 raeburn 1446: undef($Apache::inputtags::leniency);
1.498 raeburn 1447: if ($type eq 'Task') {
1448: undef($Apache::inputtags::slot_name);
1.512.2.9 raeburn 1449: } elsif ($type eq 'problem') {
1450: undef($Apache::lonhomework::rawrndseed);
1.498 raeburn 1451: }
1.208 albertel 1452: #don't undef this, lonhomework.pm takes care of this, we use this to
1453: #detect if we try to do 2 problems in one file
1454: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1455: undef($Apache::lonhomework::name);
1.358 albertel 1456: undef($Apache::lonhomework::default_type);
1457: undef($Apache::lonhomework::type);
1458: undef($Apache::lonhomework::scantronmode);
1.512.2.21 raeburn 1459: undef($Apache::inputtags::randomizetrypart);
1.358 albertel 1460: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1461: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1462: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1463: }
1464:
1.241 albertel 1465: sub set_problem_state {
1.240 albertel 1466: my ($part)=@_;
1.284 albertel 1467: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1468: $Apache::lonhomework::history{"resource.$part.solved"}=
1469: 'correct_by_student';
1470: }
1471: }
1472:
1.241 albertel 1473: sub get_problem_status {
1474: my ($part)=@_;
1.267 albertel 1475: my $problem_status;
1.284 albertel 1476: if ($env{'request.state'} eq 'construct' &&
1477: defined($env{'form.problemstatus'})) {
1478: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1479: } else {
1480: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1481: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1482: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1483: }
1484: return $problem_status;
1485: }
1486:
1.9 albertel 1487: sub start_problem {
1.326 albertel 1488: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1489:
1.311 foxr 1490: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1491: if (!$Apache::lonxml::metamode) {
1492: &Apache::lonxml::startredirection();
1493: }
1.311 foxr 1494:
1.308 foxr 1495: # Problems don't nest and we don't allow more than one <problem> in
1496: # a .problem file.
1497: #
1.184 albertel 1498: if ( $Apache::inputtags::part ne '' ||
1499: $Apache::lonhomework::parsing_a_problem) {
1500: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1501: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1502: return '';
1503: }
1.184 albertel 1504:
1505: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1506: &init_problem_globals('problem');
1.166 albertel 1507:
1.284 albertel 1508: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1509: $Apache::lonhomework::scantronmode=1;
1510: }
1.161 albertel 1511:
1.159 albertel 1512: if ($target ne 'analyze') {
1.415 raeburn 1513: my $type = &Apache::lonnet::EXT('resource.0.type');
1514: $Apache::lonhomework::type=$type;
1.284 albertel 1515: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1516: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1517: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1518: }
1.332 albertel 1519: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1520: }
1.164 albertel 1521: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1522: my $uri=$env{'request.uri'};
1.159 albertel 1523: if ($uri=~/\.(\w+)$/) {
1524: $Apache::lonhomework::type=$1;
1525: &Apache::lonxml::debug("Using type of $1");
1526: } else {
1527: $Apache::lonhomework::type='problem';
1528: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1529: }
1.87 albertel 1530: }
1.301 albertel 1531: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1532:
1.363 albertel 1533: &initialize_storage();
1.389 albertel 1534: if ($target ne 'analyze'
1535: && $env{'request.state'} eq 'construct') {
1536: &set_problem_state('0');
1537: }
1538:
1.366 albertel 1539: if ($target eq 'web') {
1540: &Apache::lonxml::debug(" grading history ");
1541: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1542: }
1.363 albertel 1543:
1.159 albertel 1544: #added vars to the scripting enviroment
1.213 albertel 1545: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1546: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1547: &Apache::run::run($expression,$safeeval);
1.159 albertel 1548: my $status;
1549: my $accessmsg;
1.508 raeburn 1550: my $resource_due;
1.159 albertel 1551:
1.343 albertel 1552: my $name= &get_resource_name($parstack,$safeeval);
1.512.2.16 raeburn 1553: my ($result,$form_tag_start,$slot_name,$slot,$probpartlist,$firstaccres);
1.506 raeburn 1554:
1555: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1556: $target eq 'tex') {
1557: if ($env{'form.markaccess'}) {
1558: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1.512.2.23.2. (raeburn 1559:): my ($timelimit) = ($interval[0] =~ /^(\d+)/);
1560:): my $is_set = &Apache::lonnet::set_first_access($interval[1],$timelimit);
1.512.2.16 raeburn 1561: unless (($is_set eq 'ok') || ($is_set eq 'already_set')) {
1562: $firstaccres = $is_set;
1563: }
1.506 raeburn 1564: }
1565:
1566: ($status,$accessmsg,$slot_name,$slot) =
1567: &Apache::lonhomework::check_slot_access('0','problem');
1568: push (@Apache::inputtags::status,$status);
1569: }
1570:
1.354 albertel 1571: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1572: || $target eq 'edit') {
1.512.2.9 raeburn 1573: ($result,$form_tag_start,$probpartlist) =
1.350 albertel 1574: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1575: $name);
1.512.2.9 raeburn 1576: } elsif (($target eq 'grade') && ($Apache::lonhomework::type eq 'randomizetry')) {
1577: my ($symb)= &Apache::lonnet::whichuser();
1.512.2.22 raeburn 1578: if ($symb ne '') {
1579: my $navmap = Apache::lonnavmaps::navmap->new();
1580: if (ref($navmap)) {
1581: my $res = $navmap->getBySymb($symb);
1582: if (ref($res)) {
1583: $probpartlist = $res->parts();
1584: }
1.512.2.9 raeburn 1585: }
1586: }
1.350 albertel 1587: }
1588:
1.284 albertel 1589: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1590:
1.479 raeburn 1591: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1592: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1593: $target eq 'tex') {
1.479 raeburn 1594:
1.512.2.22 raeburn 1595: my ($symb) = &Apache::lonnet::whichuser();
1.159 albertel 1596: #handle rand seed in construction space
1.512.2.22 raeburn 1597: if (($env{'request.state'} eq 'construct') || ($symb eq '')) {
1598: my $partorder=&Apache::lonnet::metadata($env{'request.uri'},'partorder');
1599: if ($partorder ne '') {
1600: @{$probpartlist} = split(/,/,$partorder);
1601: }
1602: }
1.512.2.9 raeburn 1603: my $rndseed=&setup_rndseed($safeeval,$target,$probpartlist);
1604: if (($target eq 'grade') && &Apache::response::submitted()) {
1605: if ($Apache::lonhomework::type eq 'randomizetry') {
1606: $Apache::lonhomework::results{'resource.0.rndseed'}=$rndseed;
1607: } else {
1608: my @parts;
1609: if (ref($probpartlist) eq 'ARRAY') {
1610: @parts = @{$probpartlist};
1611: }
1612: unless (@parts) {
1613: $Apache::lonhomework::results{'resource.0.rndseed'}=$Apache::lonhomework::rawrndseed;
1614: }
1615: }
1616: }
1.479 raeburn 1617:
1.333 albertel 1618: if ($env{'request.state'} ne "construct" &&
1619: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.512.2.20 raeburn 1620: my $rndseedval = $rndseed;
1621: if (($symb eq '') && ($Apache::lonhomework::type eq 'randomizetry')) {
1622: $rndseedval = $env{'form.rndseed'};
1623: }
1.162 albertel 1624: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.512.2.20 raeburn 1625: $rndseedval.'" />'.
1.462 raeburn 1626: '<input type="submit" name="resetdata"
1627: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1628: if (exists($env{'form.username'})) {
1629: $form_tag_start.=
1.164 albertel 1630: '<input type="hidden" name="username"
1.284 albertel 1631: value="'.$env{'form.username'}.'" />';
1.334 albertel 1632: }
1.462 raeburn 1633: if ($env{'request.role.adv'}) {
1634: $form_tag_start.= ' <label class="LC_nobreak">'
1635: .'<input type="checkbox" name="showallfoils"';
1636: if (defined($env{'form.showallfoils'})) {
1637: $form_tag_start.=' checked="checked"';
1638: }
1639: $form_tag_start.= ' /> '
1640: .&mt('Show All Foils')
1641: .'</label>';
1642: }
1.417 www 1643: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1644: $form_tag_start.=&practice_problem_header();
1.417 www 1645: }
1.462 raeburn 1646: $form_tag_start.='<hr />';
1.512.2.20 raeburn 1647: }
1648: if (($env{'request.state'} ne "construct") &&
1649: ($Apache::lonhomework::type eq 'randomizetry') &&
1650: ($status eq 'CAN_ANSWER')) {
1.512.2.21 raeburn 1651: my @parts;
1652: if (ref($probpartlist) eq 'ARRAY') {
1653: @parts = @{$probpartlist};
1654: }
1655: unless (@parts) {
1656: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1657: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1658: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries,$symb);
1659: }
1.479 raeburn 1660: }
1.324 albertel 1661:
1.159 albertel 1662: my $expression='$external::datestatus="'.$status.'";';
1663: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1664: &Apache::run::run($expression,$safeeval);
1665: &Apache::lonxml::debug("Got $status");
1.324 albertel 1666:
1.159 albertel 1667: if (( $status eq 'CLOSED' ) ||
1668: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1669: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1670: ( $status eq 'BANNED') ||
1.216 albertel 1671: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1672: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1673: ( $status eq 'NOTRESERVABLE') ||
1674: ( $status eq 'RESERVABLE') ||
1675: ( $status eq 'RESERVABLE_LATER') ||
1.216 albertel 1676: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1677: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1678: $style);
1.159 albertel 1679: if ( $target eq "web" ) {
1.343 albertel 1680: my $msg;
1.159 albertel 1681: if ($status eq 'UNAVAILABLE') {
1.504 golterma 1682: $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1.441 raeburn 1683: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.504 golterma 1684: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1.499 raeburn 1685: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1686: ($status eq 'NOTRESERVABLE')) {
1.504 golterma 1687: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1.253 albertel 1688: } elsif ($status ne 'NOT_YET_VIEWED') {
1.504 golterma 1689: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1.499 raeburn 1690: }
1.216 albertel 1691: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1692: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1693: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1694: $msg.=&checkout_msg();
1.252 albertel 1695: } elsif ($status eq 'NOT_YET_VIEWED') {
1.512.2.16 raeburn 1696: if ($firstaccres) {
1697: $msg .= '<p class="LC_error">'.
1698: &mt('A problem occurred when trying to start the timer.').'</p>';
1699: }
1.253 albertel 1700: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1701: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1702: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.499 raeburn 1703: } elsif ($status eq 'RESERVABLE') {
1704: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1705: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1706: '<br />'.
1707: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1708: } elsif ($status eq 'RESERVABLE_LATER') {
1709: $msg.=&mt('Window to make a reservation will open [_1].',
1710: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1711: } elsif ($status eq 'NOTRESERVABLE') {
1712: $msg.=&mt('Not available to make a reservation.');
1.159 albertel 1713: }
1714: $result.=$msg.'<br />';
1715: } elsif ($target eq 'tex') {
1.332 albertel 1716: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1717: : '\begin{minipage}{\textwidth}';
1.443 foxr 1718: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1719: $startminipage.'\vskip 0 mm';
1.159 albertel 1720: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1721: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1722: } else {
1.211 albertel 1723: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1724: }
1725: }
1.324 albertel 1726: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1727: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1728: $style);
1.324 albertel 1729: if ($target eq 'web') {
1.375 albertel 1730: $result .=
1731: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1732: } elsif ($target eq 'grade') {
1733: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1734: 'problem');
1735: }
1.159 albertel 1736: } elsif ($target eq 'web') {
1.508 raeburn 1737: if ($status eq 'CAN_ANSWER') {
1738: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1739: if ($slot_name ne '') {
1740: my $checked_in =
1741: $Apache::lonhomework::history{'resource.0.checkedin'};
1742: if ($checked_in eq '') {
1743: # unproctored slot access, self checkin
1744: &Apache::bridgetask::check_in('problem',undef,undef,
1745: $slot_name);
1746: $checked_in =
1747: $Apache::lonhomework::results{"resource.0.checkedin"};
1748: }
1749: if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1750: if ($slot->{'starttime'} < time()) {
1751: if (!$resource_due) {
1752: $resource_due = $slot->{'endtime'};
1753: } elsif ($slot->{'endtime'} < $resource_due) {
1754: $resource_due = $slot->{'endtime'};
1755: }
1756: }
1757: }
1758: }
1759: if ($resource_due) {
1760: my $time_left = $resource_due - time();
1761: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1762: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1763: }
1764: }
1765: }
1.368 albertel 1766: $result.="\n $form_tag_start \t".
1.227 albertel 1767: '<input type="hidden" name="submitted" value="yes" />';
1768: # create a page header and exit
1.284 albertel 1769: if ($env{'request.state'} eq "construct") {
1770: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1771: if ($Apache::lonhomework::type eq 'practice') {
1772: $result.= '<input type="submit" name="resetdata" '.
1773: 'value="'.&mt('New Problem Variation').'" />'.
1774: &practice_problem_header().'<hr />';
1.512.2.19 raeburn 1775: } elsif ($Apache::lonhomework::type eq 'randomizetry') {
1776: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1777: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1778: $result.=&randomizetry_problem_header($problemstatus,$reqtries);
1.428 raeburn 1779: }
1.227 albertel 1780: }
1781: # if we are viewing someone else preserve that info
1.284 albertel 1782: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1783: foreach my $field ('symb','courseid','domain','username') {
1784: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1785: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1786: }
1.479 raeburn 1787: foreach my $field ('trial','questiontype') {
1788: if ($env{"form.grade_$field"} ne '') {
1789: $result .= '<input type="hidden" name="grade_'.$field.
1790: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1791: }
1792: }
1.159 albertel 1793: }
1.490 raeburn 1794: if ($env{'form.grade_imsexport'}) {
1795: $result = '';
1796: }
1.159 albertel 1797: } elsif ($target eq 'tex') {
1.319 foxr 1798: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 1799: $result .= &select_metadata_hyphenation();
1800:
1.319 foxr 1801:
1.99 sakharuk 1802: }
1.159 albertel 1803: } elsif ($target eq 'edit') {
1.343 albertel 1804: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1805: $Apache::lonxml::warnings_error_header=
1806: &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 1807: my $temp=&Apache::edit::insertlist($target,$token);
1808: $result.=$temp;
1809: } elsif ($target eq 'modified') {
1810: $result=$token->[4];
1811: } else {
1812: # page_start returned a starting result, delete it if we don't need it
1813: $result = '';
1.99 sakharuk 1814: }
1.159 albertel 1815: return $result;
1.9 albertel 1816: }
1817:
1818: sub end_problem {
1.159 albertel 1819: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1820: my $result;
1.310 foxr 1821:
1.321 albertel 1822: if (!$Apache::lonxml::metamode) {
1823: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1824: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1825: }
1.319 foxr 1826:
1827: if ($target eq 'tex') {
1.321 albertel 1828: # Figure out the front matter and replace the
1829: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1830: # this in end_problem because whether or not we display due
1831: # dates depends on whether due dates have already been
1832: # displayed in the problem parts.
1833:
1.319 foxr 1834: my $frontmatter = '';
1835: my $startminipage = '';
1836: if (not $env{'form.problem_split'}=~/yes/) {
1837: $startminipage = '\begin{minipage}{\textwidth}';
1838: }
1839: my $id = $Apache::inputtags::part;
1840: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1841: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.512.2.9 raeburn 1842: my @packages = split(/,/,$packages);
1.319 foxr 1843: my $allow_print_points = 0;
1844: foreach my $partial_key (@packages) {
1845: if ($partial_key=~m/^part_0$/) {
1846: $allow_print_points=1;
1847: }
1848: }
1849: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1850: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1851: if (lc($env{'course.'.$env{'request.course.id'}.
1852: '.disableexampointprint'}) eq 'yes') {
1853: $allow_print_points=0;
1854: }
1855: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1856: 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 1857: &clear_required_languages();
1.319 foxr 1858: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1859: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1860:
1861: # Figure out what the due date is and if we need to print
1862: # it in the problem header. We have been logging the
1863: # last due date written to file.
1864:
1865: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1866: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1867: my $duedate_text = &mt('Due date: [_1]'
1868: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1869: my $temp_file;
1870: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1871:
1872: # Figure out what the last printed due date is or set it
1873: # to the epoch if no duedates have been printed.
1874:
1875: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1876: if (-e $filename) {
1877: $temp_file = Apache::File->new($filename);
1878: my @due_file = <$temp_file>;
1879: $due_file_content = $due_file[$#due_file];
1880: chomp $due_file_content;
1881: }
1882:
1883: # We display the due date iff it is not the same as the last
1884: # duedate in problem header ($due_file_content), and
1885: # none of our parts displayed a duedate.
1886: #
1887: my $parts_with_displayduedate;
1888: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1889: $parts_with_displayduedate =
1890: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1891: } else {
1892: $parts_with_displayduedate = 0;
1893: }
1894: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1895: $temp_file = Apache::File->new('>'.$filename);
1896: print $temp_file "$duetime\n";
1897: if (not $env{'request.symb'} =~ m/\.page_/) {
1898: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1899: $frontmatter .= $begin_doc.
1.448 bisitz 1900: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1901: } else {
1902: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1903: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1904: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1905: }
1.319 foxr 1906: }
1907: } else {
1.448 bisitz 1908: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1909: }
1910: } else {
1911: if (not $env{'request.symb'} =~ m/\.page_/) {
1912: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1913: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1914: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1915: }
1.319 foxr 1916: } else {
1.381 albertel 1917: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1918: }
1919: }
1920: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1921: }
1922:
1.159 albertel 1923: my $status=$Apache::inputtags::status['-1'];
1924: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1925: $target eq 'tex') {
1.249 albertel 1926: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1927: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1928: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1929: &Apache::inputtags::grade;
1.324 albertel 1930: } elsif ($status eq 'NEEDS_CHECKIN') {
1931: # no need to grade, and don't want to hide data
1.249 albertel 1932: } else {
1933: # move any submission data to .hidden
1934: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1935: }
1.159 albertel 1936: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1937: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1938: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1939: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1940: # if part is zero, no <part>s existed, so we need show the current
1941: # grading status
1942: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1943: $result.= $gradestatus;
1944: }
1945: if (
1.284 albertel 1946: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1947: ($target eq 'answer') || ($target eq 'tex')
1948: ) {
1.490 raeburn 1949: if (($target ne 'tex') &&
1950: ($env{'form.answer_output_mode'} ne 'tex') &&
1951: (!$env{'form.grade_imsexport'})) {
1.254 www 1952: $result.="</form>";
1.159 albertel 1953: }
1954: if ($target eq 'web') {
1.507 raeburn 1955: #
1956: # Closing </body></html> not added by end_page().
1957: # Added separately at end of this routine, after added
1958: # <script></script> so document will be valid xhtml.
1959: #
1960: $result.= &Apache::loncommon::end_page({'discussion' => 1,
1961: 'notbody' => 1});
1.159 albertel 1962: } elsif ($target eq 'tex') {
1.178 sakharuk 1963: my $endminipage = '';
1.284 albertel 1964: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1965: $endminipage = '\end{minipage}';
1966: }
1.284 albertel 1967: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1968: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1969: } else {
1.262 sakharuk 1970: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1971: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1972: $result .= $endminipage.'\end{document} ';
1973: } else {
1.382 albertel 1974: $result .= $endminipage;
1.262 sakharuk 1975: }
1.159 albertel 1976: }
1977: }
1978: }
1.476 www 1979: if ($target eq 'web') {
1.512.2.21 raeburn 1980: $result.=&Apache::functionplotresponse::init_script();
1981: if ($Apache::lonhomework::default_type eq 'randomizetry') {
1982: my ($symb) = &Apache::lonnet::whichuser();
1983: if ((($env{'request.state'} eq 'construct') || ($symb eq '')) &&
1984: ($status eq 'CAN_ANSWER')) {
1985: unless (@Apache::inputtags::partlist > 1) {
1986: $result.= <<"ENDJS";
1987: <script type="text/javascript">
1988: // <![CDATA[
1989: \$(document).ready(function() {
1990: \$('#LC_randomizetry_header').css('display','block');
1991: });
1992: // ]]>
1993: </script>
1994: ENDJS
1995: }
1996: }
1997: }
1.476 www 1998: }
1.159 albertel 1999: if ($target eq 'grade') {
2000: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
2001: &finalize_storage();
2002: }
1.284 albertel 2003: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
2004: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 2005: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 2006: # normally we get it from above, but in CSTR
1.172 albertel 2007: # we always show answer mode too.
1.159 albertel 2008: }
2009: } elsif ($target eq 'meta') {
2010: if ($Apache::inputtags::part eq '0') {
1.179 albertel 2011: @Apache::inputtags::response=();
1.159 albertel 2012: $result=&Apache::response::mandatory_part_meta;
2013: }
1.215 albertel 2014: $result.=&Apache::response::meta_part_order();
1.258 albertel 2015: $result.=&Apache::response::meta_response_order();
1.159 albertel 2016: } elsif ($target eq 'edit') {
2017: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 2018: $result .= &problem_edit_footer();
1.320 albertel 2019: } elsif ($target eq 'modified') {
2020: $result .= $token->[2];
1.159 albertel 2021: }
1.155 albertel 2022:
1.284 albertel 2023: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 2024: &Apache::inputtags::check_for_duplicate_ids();
2025: }
1.204 albertel 2026:
2027: &reset_problem_globals('problem');
1.159 albertel 2028:
1.502 foxr 2029: #
2030: # This shouild be just above the return so that the
2031: # time put in the javascript is as late as possible in the
2032: # computation:
2033: #
2034: if ($target eq 'web') {
2035: $result .= &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 2036: #
2037: # Closing tags delayed so any <script></script> tags
2038: # not in head can appear inside body, for valid xhtml.
2039: #
2040: $result .= "</body>\n</html>";
1.502 foxr 2041: }
1.159 albertel 2042: return $result;
1.48 albertel 2043: }
2044:
1.108 albertel 2045:
1.48 albertel 2046: sub start_library {
1.159 albertel 2047: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 2048: my ($result,$form_tag_start);
1.371 albertel 2049: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 2050: &init_problem_globals('library');
2051: $Apache::lonhomework::type='problem';
2052: }
1.159 albertel 2053: if ($target eq 'edit') {
1.343 albertel 2054: ($result,$form_tag_start)=
2055: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2056: 'Edit');
2057: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 2058: my $temp=&Apache::edit::insertlist($target,$token);
2059: $result.=$temp;
2060: } elsif ($target eq 'modified') {
2061: $result=$token->[4];
1.340 albertel 2062: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 2063: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 2064: && $env{'request.state'} eq "construct" ) {
1.159 albertel 2065: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 2066: ($result,$form_tag_start)=
2067: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2068: $name);
1.479 raeburn 2069: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 2070: $result.=" \n $form_tag_start".
1.159 albertel 2071: '<input type="hidden" name="submitted" value="yes" />';
2072: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 2073: if ($Apache::lonhomework::type eq 'practice') {
2074: $result.= '<input type="submit" name="resetdata" '.
2075: 'value="'.&mt('New Problem Variation').'" />'.
2076: &practice_problem_header().'<hr />';
2077: }
1.159 albertel 2078: }
2079: return $result;
1.48 albertel 2080: }
2081:
2082: sub end_library {
1.159 albertel 2083: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2084: my $result='';
2085: if ($target eq 'edit') {
2086: $result=&problem_edit_footer();
1.371 albertel 2087: } elsif ($target eq 'web'
2088: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
2089: && $env{'request.state'} eq "construct") {
1.349 albertel 2090: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.512.2.15 raeburn 2091: } elsif ($target eq 'meta') {
2092: $result.=&Apache::response::meta_response_order();
1.159 albertel 2093: }
1.371 albertel 2094: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
2095: &reset_problem_globals('library');
2096: }
1.159 albertel 2097: return $result;
1.197 www 2098: }
2099:
2100: sub start_definetag {
1.326 albertel 2101: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 2102:
2103: my $result;
2104:
2105: my $name = $token->[2]->{'name'};
1.326 albertel 2106: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 2107: if ($target eq 'web') {
2108: if ($name=~/^\//) {
2109: $result=
2110: '<br /><table class="LC_sty_end"><tr><th>'.
2111: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2112: } else {
2113: $result=
2114: '<br /><table class="LC_sty_begin"><tr><th>'.
2115: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2116: }
2117: $skip = &HTML::Entities::encode($skip, '<>&"');
2118: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 2119: }
2120: return $result;
2121: }
2122:
2123: sub end_definetag {
2124: return '';
1.1 albertel 2125: }
2126:
2127: sub start_block {
1.201 albertel 2128: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 2129:
2130: my $result;
1.1 albertel 2131:
1.339 albertel 2132: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2133: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 2134: my $code = $token->[2]->{'condition'};
1.385 albertel 2135: if (defined($code) && $code ne '') {
1.137 albertel 2136: if (!$Apache::lonxml::default_homework_loaded) {
2137: &Apache::lonxml::default_homework_load($safeeval);
2138: }
1.131 albertel 2139: $result = &Apache::run::run($code,$safeeval);
2140: &Apache::lonxml::debug("block :$code: returned :$result:");
2141: } else {
2142: $result='1';
2143: }
2144: if ( ! $result ) {
1.201 albertel 2145: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 2146: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2147: }
2148: $result='';
2149: } elsif ($target eq 'edit') {
2150: $result .=&Apache::edit::tag_start($target,$token);
2151: $result .=&Apache::edit::text_arg('Test Condition:','condition',
2152: $token,40);
2153: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2154: } elsif ($target eq 'modified') {
2155: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2156: $safeeval,'condition');
2157: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 2158: }
1.131 albertel 2159: return $result;
1.1 albertel 2160: }
2161:
2162: sub end_block {
1.167 www 2163: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2164: my $result;
2165: if ($target eq "edit") {
2166: $result.= &Apache::edit::tag_end($target,$token,'');
2167: }
2168: return $result;
2169: }
1.500 foxr 2170: #
2171: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
2172: # ...
2173: # </languageblock>
2174: #
2175: # This declares the intent to provide content that can be rendered in the
2176: # set of languages in the include specificatino but not in the exclude
2177: # specification. If a currently preferred language is in the include list
2178: # the content in the <languageblock>...</languageblock> is rendered
2179: # If the currently preferred language is in the exclude list,
2180: # the content in the <languageblock>..></languageblock is not rendered.
2181: #
2182: # Pathalogical case handling:
2183: # - Include specified, without the preferred language but exclude specified
2184: # also without the preferred langauge results in rendering the block.
2185: # - Exclude specified without include and excluden not containing a
2186: # preferred language renders the block.
2187: # - Include and exclude both specifying the preferred language does not
2188: # render the block.
2189: # - If neither include/exclude is specified, the block gets rendered.
2190: #
2191: # This tag has no effect when target is in {edit, modified}
2192: #
1.167 www 2193: sub start_languageblock {
1.201 albertel 2194: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 2195:
1.500 foxr 2196: my $result = '';
1.167 www 2197:
1.339 albertel 2198: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2199: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 2200: my $include = $token->[2]->{'include'};
2201: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 2202: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 2203:
2204: # This should not even happen, since we should at least have the server language
2205:
2206: if (!$preferred_languages[0]) {
2207: $preferred_languages[0]='en';
2208: }
2209:
2210: # Now loop over all languages in order of preference
2211:
2212: my $render;
1.398 www 2213: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 2214:
2215: # If neither include/nor exlude is present the block is going
2216: # to get rendered.
2217:
1.399 www 2218: my $found=0;
1.500 foxr 2219: $render=1;
2220:
2221: # If include is specified, don't render the block
2222: # unless the preferred language is included in the set.
2223:
1.398 www 2224: if ($include) {
1.500 foxr 2225: $render=0;
1.398 www 2226: foreach my $included_language (split(/\,/,$include)) {
2227: if ($included_language eq $preferred_language) {
1.500 foxr 2228: $render=1;
1.399 www 2229: $found=1;
1.500 foxr 2230: last; # Only need to find the first.
1.398 www 2231: }
2232: }
2233: }
1.500 foxr 2234: # Do we have an exclude argument?
2235: # If so, and one of the languages matches a preferred language
2236: # inhibit rendering the block. Note that in the pathalogical case the
2237: # author has specified a preferred language in both the include and exclude
2238: # attribte exclude is preferred.
2239:
1.398 www 2240: if ($exclude) {
1.500 foxr 2241: $render=1;
1.398 www 2242: foreach my $excluded_language (split(/\,/,$exclude)) {
2243: if ($excluded_language eq $preferred_language) {
1.500 foxr 2244: $render=0;
1.399 www 2245: $found=1;
1.500 foxr 2246: last; # Only need to find the first.
1.398 www 2247: }
2248: }
2249: }
1.500 foxr 2250: if ($found) {
2251: last; # Done on any match of include or exclude.
2252: }
1.398 www 2253: }
1.500 foxr 2254: # If $render not true skip the entire block until </languageblock>
2255: #
2256:
2257: if ( ! $render ) {
1.201 albertel 2258: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
2259: $style);
2260: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2261: }
1.500 foxr 2262: # If $render is true, we've not skipped the contents of the <languageglock>
2263: # and the normal loncapa processing flow will render it as a matter of course.
2264:
1.167 www 2265: } elsif ($target eq 'edit') {
2266: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2267: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 2268: $token,40);
1.211 albertel 2269: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 2270: $token,40);
2271: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2272: } elsif ($target eq 'modified') {
2273: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 2274: $safeeval,'include',
2275: 'exclude');
1.167 www 2276: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2277: }
2278: return $result;
2279: }
2280:
2281: sub end_languageblock {
1.170 www 2282: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2283: my $result;
1.201 albertel 2284: if ($target eq "edit") {
1.170 www 2285: $result.= &Apache::edit::tag_end($target,$token,'');
2286: }
2287: return $result;
2288: }
1.500 foxr 2289: # languagblock specific tags:
2290: {
2291: # For chunks of a resource that has translations, this hash contains
2292: # the translations available indexed by language name.
2293: #
2294:
2295: my %available_texts;
1.170 www 2296:
1.500 foxr 2297: # <translated> starts a block of a resource that has multiple translations.
2298: # See the <lang> tag as well.
2299: # When </translated> is encountered if there is a translation for the
2300: # currently preferred language, that is rendered inthe web/tex/webgrade
2301: # targets. Otherwise, the default text is rendered.
2302: #
2303: # Note that <lang> is only registered for the duration of the
2304: # <translated>...</translated> block
2305: #
2306: # Pathalogical case handling:
2307: # - If there is no <lang> that specifies a 'default' and there is no
2308: # translation that matches a preferred language, nothing is rendered.
2309: # - Nested <translated>...</translated> might be linguistically supported by
2310: # XML due to the stack nature of tag registration(?) however the rendered
2311: # output will be incorrect because there is only one %available_texts
2312: # has and end_translated clears it.
2313: # - Material outside of a <lang>...</lang> block within the
2314: # <translated>...<translated> block won't render either e.g.:
2315: # <translated>
2316: # The following will be in your preferred langauge:
2317: # <lang which='en'>
2318: # This section in english
2319: # </lang>
2320: # <lang which='sgeiso'>
2321: # Hier es ist auf Deutsch.
2322: # </lang>
2323: # <lang which='sfriso'>
2324: # En Francais
2325: # </lang>
2326: # </translated>
2327: #
2328: # The introductory text prior to the first <lang> tag is not rendered.
2329: #
1.397 albertel 2330: sub start_translated {
2331: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2332: &Apache::lonxml::register('Apache::structuretags',('lang'));
2333: undef(%available_texts);
2334: }
2335:
2336: sub end_translated {
2337: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2338: my $result;
2339: #show the translation on viewable targets
2340: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
2341: # or non-viewable targets, if it's embedded in something that
2342: # wants the output
2343: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
2344: && &Apache::lonxml::in_redirection() ) ) {
2345: my @possibilities = keys(%available_texts);
2346: my $which =
2347: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 2348: if ($target eq 'tex') {
2349: $result = &select_hyphenation($which);
2350: }
2351: $result .= $available_texts{$which};
2352: if ($target eq 'tex') {
2353: $result .= &select_metadata_hyphenation(); # Restore original language.
2354: }
1.397 albertel 2355: }
2356: undef(%available_texts);
2357: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
2358: return $result;
2359: }
2360:
1.500 foxr 2361: # <lang [which='language-name'] [other='lang1,lang2...']>
2362: # Specifies that the block contained within it is a translation
2363: # for a specific language specified by the 'which' attribute. The
2364: # 'other' attribute can be used by itself or in conjunction with
2365: # which to specify this tag _may_ be used as a translation for some
2366: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
2367: # specifying that the block provides a translation for US (primary)
2368: # Canadian, Australian and UK Englush.
2369: #
2370: # Comment: this seems a bit silly why not just support a list of languages
2371: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
2372: #
2373: # Effect:
2374: # The material within the <lang>..</lang> block is stored in the
2375: # specified set of $available_texts hash entries, the appropriate one
2376: # is selected at </translated> time.
2377: #
2378: # Pathalogical case handling:
2379: # If a language occurs multiple times within a <translated> block,
2380: # only the last one is rendered e.g.:
2381: #
2382: # <translated>
2383: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
2384: # Red green color blindness is quite common affecting about 7.8% of
2385: # the male population, but onloy about .65% of the female population.
2386: # </lang>
2387: # Red green colour blindness is quite common affecting about 7.8% of
2388: # the male population, but onloy about .65% of the female population.
2389: # <lang which='seniso', other='senisoCA,senisoAU'>
2390: # </translated>
2391: #
2392: # renders the correct spelling of color (colour) for people who have specified
2393: # a preferred language that is one of the British Commonwealth languages
2394: # even though those are also listed as valid selections for the US english
2395: # <lang> block.
2396: #
1.397 albertel 2397: sub start_lang {
2398: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2399: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2400: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2401: &Apache::lonxml::startredirection();
2402: }
2403: return '';
2404: }
2405:
2406: sub end_lang {
2407: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2408: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2409: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2410: my $result = &Apache::lonxml::endredirection();
2411: my $which = &Apache::lonxml::get_param('which',$parstack,
2412: $safeeval);
1.431 raeburn 2413: if ($which=~/\w/) {
2414: $available_texts{$which} = $result;
2415: }
2416: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
2417: $safeeval);
2418: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
2419: if ($language=~/\w/) {
2420: $available_texts{$language} = $result;
2421: }
1.427 bisitz 2422: }
2423:
1.397 albertel 2424: }
2425: return '';
2426: }
1.500 foxr 2427: } # end langauge block specific tags.
2428:
1.397 albertel 2429:
1.170 www 2430: sub start_instructorcomment {
1.201 albertel 2431: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 2432:
2433: my $result;
2434:
1.339 albertel 2435: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2436: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 2437: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 2438: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 2439: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
2440: $parser,$style);
1.170 www 2441: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2442: }
2443: $result='';
2444: } elsif ($target eq 'edit') {
2445: $result .=&Apache::edit::tag_start($target,$token);
2446: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2447: }
2448: return $result;
2449: }
2450:
2451: sub end_instructorcomment {
1.159 albertel 2452: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2453: my $result;
2454: if ($target eq "edit") {
2455: $result.= &Apache::edit::tag_end($target,$token,'');
2456: }
2457: return $result;
1.4 tsai 2458: }
2459:
2460: sub start_while {
1.326 albertel 2461: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2462:
1.160 albertel 2463: my $result;
1.339 albertel 2464: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2465: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2466: my $code = $token->[2]->{'condition'};
1.4 tsai 2467:
1.160 albertel 2468: push( @Apache::structuretags::whileconds, $code);
2469: if (!$Apache::lonxml::default_homework_loaded) {
2470: &Apache::lonxml::default_homework_load($safeeval);
2471: }
2472: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2473: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2474: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2475: push( @Apache::structuretags::whileline, $token->[5]);
2476: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2477: if ( $result ) {
2478: &Apache::lonxml::newparser($parser,\$bodytext);
2479: }
2480: } elsif ($target eq 'edit') {
2481: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2482: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2483: $token,40);
2484: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2485: } elsif ($target eq 'modified') {
2486: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2487: $safeeval,'condition');
2488: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2489: }
1.160 albertel 2490: return $result;
1.4 tsai 2491: }
2492:
2493: sub end_while {
1.159 albertel 2494: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2495: my $result;
2496:
1.339 albertel 2497: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2498: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2499: my $code = pop(@Apache::structuretags::whileconds);
2500: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2501: my $line = pop(@Apache::structuretags::whileline);
2502: my $return = &Apache::run::run($code,$safeeval);
2503: my $starttime=time;
2504: my $error=0;
2505: while ($return) {
2506: if (time-$starttime >
2507: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2508: $return = 0; $error=1; next;
1.161 albertel 2509: }
2510: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2511: if ($target eq 'grade' || $target eq 'answer' ||
2512: $target eq 'analyze') {
2513: # grade/answer/analyze should produce no output but if we
2514: # are redirecting, the redirecter should know what to do
2515: # with the output
2516: if (!$Apache::lonxml::redirection) { undef($result); }
2517: }
1.161 albertel 2518: $return = &Apache::run::run($code,$safeeval);
2519: }
1.512.2.5 raeburn 2520: if ($error) {
2521: &Apache::lonxml::error(
2522: '<pre>'
2523: .&mt('Code ran too long. It ran for more than [_1] seconds.',
2524: $Apache::lonnet::perlvar{'lonScriptTimeout'})
2525: .&mt('This occurred while running <while> on line [_1].',
2526: $line)
2527: .'</pre>');
2528: }
1.160 albertel 2529: } elsif ($target eq "edit") {
2530: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2531: }
1.160 albertel 2532: return $result;
1.1 albertel 2533: }
1.6 tsai 2534:
1.160 albertel 2535: # <randomlist show="1">
1.6 tsai 2536: # <tag1>..</tag1>
2537: # <tag2>..</tag2>
2538: # <tag3>..</tag3>
1.160 albertel 2539: # ...
1.6 tsai 2540: # </randomlist>
2541: sub start_randomlist {
1.326 albertel 2542: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2543: my $result;
1.339 albertel 2544: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2545: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2546: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2547: my $b_parser= HTML::LCParser->new(\$body);
2548: $b_parser->xml_mode(1);
2549: $b_parser->marked_sections(1);
1.159 albertel 2550: my $b_tok;
2551: my @randomlist;
2552: my $list_item;
2553: while($b_tok = $b_parser->get_token() ) {
2554: if($b_tok->[0] eq 'S') { # start tag
2555: # get content of the tag until matching end tag
2556: # get all text upto the matching tag
2557: # and push the content into @randomlist
2558: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2559: $b_parser);
2560: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2561: push(@randomlist,$list_item);
2562: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2563: # $list_item</b>";
2564: }
2565: if($b_tok->[0] eq 'T') { # text
2566: # what to do with text in between tags?
2567: # print "<b>TEXT $b_tok->[1]</b><br />";
2568: }
2569: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2570: # print "<b>END-TAG $b_tok->[1]</b><br />";
2571: # }
2572: }
1.303 albertel 2573: if (@randomlist) {
2574: my @idx_arr = (0 .. $#randomlist);
1.512.2.14 raeburn 2575: if ($env{'form.code_for_randomlist'}) {
2576: &Apache::structuretags::shuffle(\@idx_arr,$target);
2577: undef($env{'form.code_for_randomlist'});
2578: } else {
2579: &Apache::structuretags::shuffle(\@idx_arr);
2580: }
1.303 albertel 2581: my $bodytext = '';
2582: my $show=$#randomlist;
2583: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2584: $showarg--;
2585: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2586: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2587: my @currlist;
2588: my $part = $Apache::inputtags::part;
2589: if ($part ne '') {
2590: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2591: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2592: if (!(grep(/^\Q$part\E$/,@currlist))) {
2593: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2594: }
2595: } else {
2596: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2597: }
2598: }
2599: }
1.512.2.9 raeburn 2600: for my $i (0 .. $show) {
2601: $bodytext .= "$randomlist[ $idx_arr[$i] ]";
1.303 albertel 2602: }
2603: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2604: }
2605: } elsif ($target eq 'edit' ) {
2606: $result .=&Apache::edit::tag_start($target,$token);
2607: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2608: $token,5);
2609: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2610: } elsif ($target eq 'modified' ) {
2611: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2612: $safeeval,'show');
2613: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2614: }
2615: return $result;
1.7 tsai 2616: }
2617:
2618: sub shuffle {
1.512.2.14 raeburn 2619: my ($a,$target) = @_;
1.7 tsai 2620: my $i;
1.303 albertel 2621: if (ref($a) eq 'ARRAY' && @$a) {
1.512.2.14 raeburn 2622: &Apache::response::pushrandomnumber(undef,$target);
1.159 albertel 2623: for($i=@$a;--$i;) {
2624: my $j=int(&Math::Random::random_uniform() * ($i+1));
2625: next if $i == $j;
2626: @$a[$i,$j] = @$a[$j,$i];
2627: }
1.251 albertel 2628: &Apache::response::poprandomnumber();
1.7 tsai 2629: }
1.6 tsai 2630: }
2631:
2632: sub end_randomlist {
1.159 albertel 2633: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2634: my $result;
2635: if ($target eq 'edit' ) {
2636: $result=&Apache::edit::tag_end($target,$token,
2637: 'End Randomly Parsed Block');
2638: }
2639: return $result;
1.6 tsai 2640: }
2641:
1.283 albertel 2642: sub ordered_show_check {
2643: my $last_part=$Apache::inputtags::partlist[-2];
2644: my $in_order=
2645: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2646: my $in_order_show=1;
2647: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2648: $in_order_show=&Apache::response::check_status($last_part);
2649: }
2650: return $in_order_show;
2651: }
2652:
1.469 www 2653:
2654: sub start_startpartmarker {
2655: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2656: my $result='';
2657: if ($target eq 'edit') {
2658: $result=&Apache::edit::tag_start($target,$token);
2659: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2660: $result.=&Apache::edit::end_table();
2661:
2662: }
2663: return $result;
2664: }
2665:
2666: sub end_startpartmarker {
2667: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2668: my @result;
2669: if ($target eq 'edit') { $result[1]='no'; }
2670: return @result;
2671: }
2672:
2673: sub start_endpartmarker {
2674: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2675: my $result='';
2676: if ($target eq 'edit') {
2677: $result=&Apache::edit::tag_start($target,$token);
2678: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2679: $result.=&Apache::edit::end_table();
2680:
2681: }
2682: return $result;
2683: }
2684:
2685: sub end_endpartmarker {
2686: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2687: my @result;
2688: if ($target eq 'edit') { $result[1]='no'; }
2689: return @result;
2690: }
2691:
2692:
2693:
2694:
2695:
1.11 albertel 2696: sub start_part {
1.326 albertel 2697: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2698: if (!$Apache::lonxml::metamode) {
2699: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2700: # duedates.
2701: }
1.159 albertel 2702: my $result='';
1.386 albertel 2703: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2704: $Apache::inputtags::part=$id;
1.177 albertel 2705: push(@Apache::inputtags::partlist,$id);
1.512.2.10 raeburn 2706: $Apache::inputtags::leniency='';
1.177 albertel 2707: @Apache::inputtags::response=();
1.159 albertel 2708: @Apache::inputtags::previous=();
2709: @Apache::inputtags::previous_version=();
1.405 albertel 2710: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2711: &Apache::response::reset_params();
2712:
1.159 albertel 2713: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2714: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2715: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.512.2.9 raeburn 2716: if ($Apache::lonhomework::type eq 'randomizetry') {
2717: my $rndseed=&setup_rndseed($safeeval,$target);
2718: if (($target eq 'grade') && &Apache::response::submitted()) {
2719: $Apache::lonhomework::results{"resource.$id.rndseed"}=$rndseed;
2720: }
2721: } elsif (($target eq 'grade') && &Apache::response::submitted()) {
2722: $Apache::lonhomework::results{"resource.$id.rndseed"}=$Apache::lonhomework::rawrndseed;
2723: }
1.283 albertel 2724: my $in_order_show=&ordered_show_check();
1.214 albertel 2725: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2726: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2727: &Apache::run::run($expression,$safeeval);
1.159 albertel 2728:
2729: if ($target eq 'meta') {
1.224 www 2730: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2731: return &Apache::response::mandatory_part_meta.
2732: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2733: } elsif ($target eq 'web' || $target eq 'grade' ||
2734: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2735: if ($hidden || !$in_order_show) {
1.326 albertel 2736: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2737: } else {
2738: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2739: push (@Apache::inputtags::status,$status);
2740: my $expression='$external::datestatus="'.$status.'";';
2741: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2742: &Apache::run::run($expression,$safeeval);
1.284 albertel 2743: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2744: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2745: }
1.216 albertel 2746: if (( $status eq 'CLOSED' ) ||
2747: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2748: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2749: ( $status eq 'BANNED') ||
2750: ( $status eq 'UNAVAILABLE') ||
2751: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2752: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2753: $style);
1.159 albertel 2754: if ( $target eq "web" ) {
1.211 albertel 2755: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2756: } elsif ( $target eq 'tex' ) {
1.284 albertel 2757: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2758: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2759: } else {
1.211 albertel 2760: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2761: }
1.159 albertel 2762: }
2763: } else {
2764: if ($target eq 'tex') {
1.284 albertel 2765: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2766: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2767: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2768: } else {
2769: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2770: }
1.195 sakharuk 2771: }
1.159 albertel 2772: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2773: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.512.2.9 raeburn 2774: my @allkeys = split(/,/,$allkeys);
1.222 sakharuk 2775: my $allow_print_points = 0;
2776: foreach my $partial_key (@allkeys) {
1.230 albertel 2777: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2778: if ($1 ne '0') {$allow_print_points=1;}
2779: }
2780: }
1.275 albertel 2781: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2782: if (defined($maxtries) && $maxtries < 0) {
2783: $allow_print_points=0;
2784: }
1.302 albertel 2785: if (lc($env{'course.'.$env{'request.course.id'}.
2786: '.disableexampointprint'}) eq 'yes') {
2787: $allow_print_points=0;
2788: }
1.463 foxr 2789: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2790: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2791:
2792: }
1.233 www 2793: } elsif ($target eq 'web') {
1.479 raeburn 2794: if ($status eq 'CAN_ANSWER') {
2795: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2796: my $num = scalar(@Apache::inputtags::partlist)-1;
1.512.2.21 raeburn 2797: if ((($Apache::lonhomework::default_type eq 'randomizetry') ||
2798: ($Apache::lonhomework::randomizetrypart)) &&
2799: ($Apache::lonhomework::type ne 'randomizetry')) {
2800: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2801: } elsif ($Apache::lonhomework::type eq 'randomizetry') {
2802: $Apache::lonhomework::randomizetrypart = 1;
2803: my $reqtries = &Apache::lonnet::EXT("resource.$id.randomizeontries");
1.479 raeburn 2804: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2805: }
2806: }
1.475 raeburn 2807: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2808: }
2809: }
2810: }
2811: } elsif ($target eq 'edit') {
2812: $result.=&Apache::edit::tag_start($target,$token);
2813: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2814: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2815: ' '.
2816: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2817: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2818: } elsif ($target eq 'modified') {
2819: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2820: $safeeval,'id','display');
1.159 albertel 2821: if ($constructtag) {
1.225 albertel 2822: #limiting ids to only letters numbers, and space
1.224 www 2823: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2824: $result = &Apache::edit::rebuild_tag($token);
2825: }
2826: }
2827: return $result;
1.11 albertel 2828: }
2829:
2830: sub end_part {
1.159 albertel 2831: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2832: &Apache::lonxml::debug("in end_part $target ");
2833: my $status=$Apache::inputtags::status['-1'];
2834: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2835: my $in_order_show=&ordered_show_check();
1.321 albertel 2836: my $result;
2837: if (!$Apache::lonxml::metamode) {
2838: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2839: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2840: }
1.312 albertel 2841: if ($target eq 'grade') {
1.249 albertel 2842: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2843: !$hidden && $in_order_show) {
1.311 foxr 2844: $result.=&Apache::inputtags::grade;
1.249 albertel 2845: } else {
2846: # move any submission data to .hidden
2847: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2848: }
1.283 albertel 2849: } elsif (($target eq 'web' || $target eq 'tex') &&
2850: !$hidden && $in_order_show) {
1.159 albertel 2851: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2852: $target);
1.490 raeburn 2853: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2854: ($env{'form.grade_imsexport'})) {
1.212 albertel 2855: $gradestatus='';
2856: }
1.311 foxr 2857: $result.=$gradestatus;
1.265 sakharuk 2858: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2859: } elsif ($target eq 'edit') {
1.311 foxr 2860: $result.=&Apache::edit::end_table();
1.322 albertel 2861: } elsif ($target eq 'modified') {
2862: $result .= $token->[2];
1.159 albertel 2863: }
2864: pop @Apache::inputtags::status;
2865: $Apache::inputtags::part='';
1.512.2.10 raeburn 2866: $Apache::inputtags::leniency='';
1.295 albertel 2867: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2868: return $result;
1.11 albertel 2869: }
1.1 albertel 2870:
1.25 albertel 2871: sub start_preduedate {
1.326 albertel 2872: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2873: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2874: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2875: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2876: if (!$Apache::lonhomework::scantronmode &&
2877: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2878: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2879: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2880: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2881: }
1.24 albertel 2882: }
1.159 albertel 2883: return '';
1.24 albertel 2884: }
2885:
1.25 albertel 2886: sub end_preduedate {
1.159 albertel 2887: return '';
1.24 albertel 2888: }
2889:
1.369 foxr 2890: # In all the modes where <postanswerdate> text is
2891: # displayable, all we do is eat up the text between the start/stop
2892: # tags if the conditions are not right to display it.
1.25 albertel 2893: sub start_postanswerdate {
1.326 albertel 2894: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2895: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2896: &Apache::lonnet::allowed('pav',
2897: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2898: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2899: $target eq 'tex' ) {
1.300 albertel 2900: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2901: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2902: (($target eq 'tex') && !$pav)) {
1.326 albertel 2903: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2904: }
2905: }
2906: return '';
1.24 albertel 2907: }
2908:
1.25 albertel 2909: sub end_postanswerdate {
1.159 albertel 2910: return '';
1.24 albertel 2911: }
2912:
1.25 albertel 2913: sub start_notsolved {
1.326 albertel 2914: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2915: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2916: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2917: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2918: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2919: if ($gradestatus =~ /^correct/ &&
2920: &Apache::response::show_answer()) {
1.159 albertel 2921: &Apache::lonxml::debug("skipping");
1.326 albertel 2922: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2923: }
1.24 albertel 2924: }
1.159 albertel 2925: return '';
1.24 albertel 2926: }
2927:
1.25 albertel 2928: sub end_notsolved {
1.159 albertel 2929: return '';
1.24 albertel 2930: }
2931:
2932: sub start_solved {
1.326 albertel 2933: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2934: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2935: $target eq 'tex') {
2936: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2937: if ($gradestatus !~ /^correct/ ||
2938: !&Apache::response::show_answer()) {
1.326 albertel 2939: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2940: }
1.24 albertel 2941: }
1.159 albertel 2942: return '';
1.24 albertel 2943: }
2944:
2945: sub end_solved {
1.248 albertel 2946: return '';
2947: }
2948:
2949: sub start_problemtype {
1.326 albertel 2950: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2951: my $result;
1.339 albertel 2952: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2953: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2954: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2955: if (!defined($mode)) { $mode='show'; }
2956: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2957: my $found=0;
2958: foreach my $type (split(',',$for)) {
2959: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2960: }
2961: if ($mode eq 'show' && !$found) {
1.326 albertel 2962: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2963: }
2964: if ($mode eq 'hide' && $found) {
1.326 albertel 2965: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2966: }
2967: } elsif ($target eq 'edit') {
2968: $result .=&Apache::edit::tag_start($target,$token);
2969: $result.=&Apache::edit::select_arg('Mode:','mode',
2970: [['show','Show'],
2971: ['hide','Hide']]
2972: ,$token);
2973: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.512.2.2 raeburn 2974: [ ['exam','Exam/Quiz Problem'],
1.248 albertel 2975: ['survey','Survey'],
1.465 raeburn 2976: ['surveycred','Survey (with credit)'],
2977: ['anonsurvey','Anonymous Survey'],
2978: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2979: ['problem','Homework Problem'],
1.479 raeburn 2980: ['practice','Practice Problem'],
2981: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2982: ,$token);
2983: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2984: } elsif ($target eq 'modified') {
2985: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2986: $safeeval,'mode','for');
2987: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2988: }
2989: return $result;
2990: }
2991:
2992: sub end_problemtype {
1.159 albertel 2993: return '';
1.24 albertel 2994: }
1.34 albertel 2995:
2996: sub start_startouttext {
1.159 albertel 2997: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2998: my @result=(''.'');
2999: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 3000:
3001: my $nesting =
3002: &Apache::lonxml::set_state('outtext',
3003: &Apache::lonxml::get_state('outtext')+1);
3004: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
3005: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
3006: }
1.159 albertel 3007: return (@result);
1.34 albertel 3008: }
1.159 albertel 3009:
1.34 albertel 3010: sub end_startouttext {
1.326 albertel 3011: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 3012: my $result='';
3013: my $text='';
3014: if ($target eq 'edit') {
1.424 foxr 3015: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 3016: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.512.2.11 raeburn 3017: $result.=&Apache::edit::start_table($token)."<tr><td>".&Apache::loncommon::insert_folding_button()
3018: ." ".&mt('Text Block')."</td>"
1.438 bisitz 3019: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 3020: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 3021: .'</span></td>'
1.512.2.12 raeburn 3022: .'<td><span id="math_'.$areaid.'">';
3023: if ($env{'environment.nocodemirror'}) {
3024: $result.=&Apache::lonhtmlcommon::dragmath_button($areaid,1);
3025: } else {
3026: $result.=' ';
3027: }
3028: $result.='</span></td>'
1.474 raeburn 3029: .'<td>'
3030: .&Apache::edit::insertlist($target,$token)
3031: .'</td>'
1.512.2.5 raeburn 3032: .'<td class="LC_edit_problem_latexhelper">' .
1.474 raeburn 3033: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 3034: &Apache::edit::end_row().
1.362 albertel 3035: &Apache::edit::start_spanning_row()."\n".
1.255 www 3036: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 3037: }
3038: if ($target eq 'modified') {
1.219 albertel 3039: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 3040: }
3041: if ($target eq 'tex') {
3042: $result .= '\noindent ';
3043: }
3044: return $result;
1.34 albertel 3045: }
1.159 albertel 3046:
1.34 albertel 3047: sub start_endouttext {
1.159 albertel 3048: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3049: my $result='';
3050: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
3051: if ($target eq "modified") {
3052: $result='<endouttext />'.
1.377 albertel 3053: &Apache::edit::handle_insertafter('startouttext');
3054: }
1.404 albertel 3055:
3056: my $nesting =
3057: &Apache::lonxml::set_state('outtext',
3058: &Apache::lonxml::get_state('outtext')-1);
3059: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
3060: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
3061: &Apache::lonxml::set_state('outtext', 0);
3062: }
1.159 albertel 3063: return $result;
1.34 albertel 3064: }
1.159 albertel 3065:
1.34 albertel 3066: sub end_endouttext {
1.159 albertel 3067: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3068: my @result=('','');
3069: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
3070: return (@result);
1.34 albertel 3071: }
1.159 albertel 3072:
1.45 albertel 3073: sub delete_startouttext {
1.326 albertel 3074: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
3075: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 3076: my $text=$$parser['-1']->get_text("/endouttext");
3077: my $ntoken=$$parser['-1']->get_token();
3078: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
3079: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
3080: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
3081: # they did the last time round
3082: &Apache::lonxml::increasedepth($ntoken);
3083: &Apache::lonxml::decreasedepth($ntoken);
3084: return 1;
1.193 www 3085: }
3086:
3087: sub start_simpleeditbutton {
3088: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3089: my $result='';
1.284 albertel 3090: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 3091: ($target eq 'web') &&
1.330 albertel 3092: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 3093: my $url=$env{'request.noversionuri'};
1.193 www 3094: $url=~s/\?.*$//;
1.367 albertel 3095: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 3096: # Warning makes more sense and is more important on edit screen
1.442 bisitz 3097: # $result='<p class="LC_warning">'
3098: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
3099: # .&Apache::loncommon::help_open_topic('Caching')
3100: # .'</p>';
1.486 www 3101: $result.=&Apache::loncommon::head_subbox(
3102: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 3103: .&Apache::lonhtmlcommon::add_item_funclist(
3104: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
3105: .&mt('Edit').'</a>')
1.486 www 3106: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 3107:
1.193 www 3108: }
3109: return $result;
3110: }
3111:
3112: sub end_simpleeditbutton {
3113: return '';
1.45 albertel 3114: }
1.34 albertel 3115:
1.428 raeburn 3116: sub practice_problem_header {
3117: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
3118: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
3119: '</span>';
3120: }
3121:
1.479 raeburn 3122: sub randomizetry_problem_header {
1.512.2.21 raeburn 3123: my ($problemstatus,$reqtries,$symb) = @_;
1.479 raeburn 3124: my ($header,$text);
3125: if ($reqtries > 1) {
3126: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
3127: if (($problemstatus eq 'no') ||
3128: ($problemstatus eq 'no_feedback_ever')) {
3129: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3130: } else {
3131: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3132: }
3133: } else {
3134: $header = &mt('New Problem Variation Each Try');
3135: if (($problemstatus eq 'no') ||
3136: ($problemstatus eq 'no_feedback_ever')) {
3137: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
3138:
3139: } else {
3140: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
3141: }
3142: }
1.512.2.21 raeburn 3143: if (($env{'request.state'} eq "construct") || ($symb eq '')) {
3144: return '<div class="LC_info" id="LC_randomizetry_header" style="display:none">'.
3145: '<h3>'.$header.'</h3><span class="LC_info">'.$text.'</span><hr /></div>';
3146: } else {
3147: return '<h3 class="LC_info">'.$header.'</h3>'.
3148: '<span class="LC_info">'.$text.'</span><hr />';
3149: }
1.479 raeburn 3150: }
3151:
3152: sub randomizetry_part_header {
3153: my ($problemstatus,$reqtries,$num) = @_;
3154: my ($header,$text);
3155: if ($reqtries eq 'none') {
3156: $header = &mt('No Question Variation');
1.512.2.23 raeburn 3157: $text = &mt('For this question there will be no new variation after a try.');
1.479 raeburn 3158: } elsif ($reqtries > 1) {
3159: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
3160: if (($problemstatus eq 'no') ||
3161: ($problemstatus eq 'no_feedback_ever')) {
3162: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3163: } else {
3164: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3165: }
3166: } else {
3167: $header = &mt('New Question Variation For Each Try');
3168: if (($problemstatus eq 'no') ||
3169: ($problemstatus eq 'no_feedback_ever')) {
3170: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
3171: } else {
3172: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
3173: }
3174: }
3175: my $output;
3176: if ($num > 1) {
3177: $output .= '<hr />';
3178: }
3179: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
3180: '<span class="LC_info">'.$text.'</span><br /><br />';
3181: return $output;
3182: }
3183:
1.1 albertel 3184: 1;
3185: __END__
1.435 jms 3186:
3187: =pod
3188:
3189: =back
3190:
3191: =cut
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