Annotation of loncom/homework/structuretags.pm, revision 1.512.2.13.4.3
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.512.2.13.4. (raeburn 4:): # $Id: structuretags.pm,v 1.512.2.13.4.2 2017/09/15 17:05:32 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 = $jstimeout;
341: if (submithandled == 0) {
342: submithandled = 1;
343: \$( "#msg_"+buttonId ).css({"display": "inline","background-color": "#87cefa",
344: "color": "black","padding": "2px"}) ;
345: if (( \$(this.form).id == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
346: if (buttonId != "all_submit") {
347: \$( ".LC_status_"+buttonId ).hide();
348: if (( "#"+buttonId+"_pressed" ).length) {
349: \$( "#"+buttonId+"_pressed" ).val( "1" );
350: }
351: }
352: } else {
353: \$( ".LC_status_"+buttonId ).hide();
354: }
355: \$(this.form).submit();
356: \$( ".LC_hwk_submit" ).prop( "disabled", true);
357: \$( ".LC_textline" ).prop( "readonly", "readonly");
358: event.preventDefault();
359:
360: if (timeout > 0) {
361: setTimeout(function(){
362: \$( "#msg_"+buttonId ).css({"display": "none"});
363: if (( \$(this.form).id == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
364: if (buttonId != "all_submit") {
365: if (( "#"+buttonId+"_pressed" ).length) {
366: \$( "#"+buttonId+"_pressed" ).val( "" );
367: }
368: }
369: }
370: \$( ".LC_hwk_submit" ).prop( "disabled", false);
371: \$( ".LC_textline" ).prop( "readonly", false);
372: submithandled = 0;
373: keypresshandled = 0;
374: }, timeout);
375: }
376: return true;
377: }
378: }
379: });
380: }
381: });
382:
1.483 raeburn 383: // ]]>
1.400 albertel 384: </script>
385: JS
386: }
387:
1.416 raeburn 388: sub setmode_javascript {
389: return <<"ENDSCRIPT";
390: <script type="text/javascript">
1.485 raeburn 391: // <![CDATA[
1.416 raeburn 392: function setmode(form,probmode) {
1.512.2.13 raeburn 393: var initial = form.problemmode.value;
1.416 raeburn 394: form.problemmode.value = probmode;
395: form.submit();
1.512.2.13 raeburn 396: form.problemmode.value = initial;
1.416 raeburn 397: }
1.485 raeburn 398: // ]]>
1.416 raeburn 399: </script>
400: ENDSCRIPT
401: }
402:
1.48 albertel 403: sub page_start {
1.345 albertel 404: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
405: $extra_head)=@_;
1.159 albertel 406: my %found;
1.207 albertel 407: foreach my $taginside (@$tagstack) {
1.159 albertel 408: foreach my $taglookedfor ('html','body','form') {
409: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
410: }
411: }
412:
1.343 albertel 413: if ($target eq 'tex') {
414: return
415: &Apache::londefdef::start_html($target,$token,$tagstack,
416: $parstack,$parser,$safeeval);
417: }
418:
1.474 raeburn 419: $extra_head .= &homework_js().
420: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
421: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
1.512.2.12 raeburn 422: my %textarea_args;
423: if (($env{'request.state'} ne 'construct') ||
424: ($env{'environment.nocodemirror'})) {
425: %textarea_args = (
1.474 raeburn 426: dragmath => 'math',
427: );
1.512.2.12 raeburn 428: }
1.474 raeburn 429: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 430: }
1.478 raeburn 431: my $is_task = ($env{'request.uri'} =~ /\.task$/);
1.512.2.9 raeburn 432: my ($needs_upload,$partlist);
1.495 raeburn 433: my ($symb)= &Apache::lonnet::whichuser();
434: my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
1.478 raeburn 435: if ($is_task) {
1.495 raeburn 436: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
1.493 raeburn 437: } else {
438: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.uploadedfiletypes") ne '') {
1.495 raeburn 439: unless ($env{'request.state'} eq 'construct') {
440: my $navmap = Apache::lonnavmaps::navmap->new();
441: if (ref($navmap)) {
442: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 443: my $is_page;
444: if (ref($mapres)) {
445: $is_page = $mapres->is_page();
446: }
447: unless ($is_page) {
1.495 raeburn 448: $needs_upload = 1;
449: }
1.512.2.9 raeburn 450: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
451: my $res = $navmap->getBySymb($symb);
452: if (ref($res)) {
453: $partlist = $res->parts();
454: }
455: }
1.495 raeburn 456: }
457: }
1.493 raeburn 458: } else {
459: unless ($env{'request.state'} eq 'construct') {
460: my $navmap = Apache::lonnavmaps::navmap->new();
461: if (ref($navmap)) {
1.495 raeburn 462: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 463: my $is_page;
464: if (ref($mapres)) {
465: $is_page = $mapres->is_page();
466: }
1.512.2.9 raeburn 467: if ($is_page) {
468: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
469: my $res = $navmap->getBySymb($symb);
470: if (ref($res)) {
471: $partlist = $res->parts();
472: }
473: }
474: } else {
1.495 raeburn 475: my $res = $navmap->getBySymb($symb);
476: if (ref($res)) {
1.512.2.9 raeburn 477: $partlist = $res->parts();
1.495 raeburn 478: if (ref($partlist) eq 'ARRAY') {
479: foreach my $part (@{$partlist}) {
480: my @types = $res->responseType($part);
481: my @ids = $res->responseIds($part);
482: for (my $i=0; $i < scalar(@ids); $i++) {
483: if ($types[$i] eq 'essay') {
484: my $partid = $part.'_'.$ids[$i];
485: if (&Apache::lonnet::EXT("resource.$partid.uploadedfiletypes") ne '') {
486: $needs_upload = 1;
487: last;
488: }
1.493 raeburn 489: }
490: }
491: }
1.495 raeburn 492: }
493: }
1.493 raeburn 494: }
495: }
496: }
497: }
1.495 raeburn 498: if ($needs_upload) {
499: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
500: }
1.478 raeburn 501: }
1.425 raeburn 502:
1.344 albertel 503: my %body_args;
504: if (defined($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 ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 646: my ($questiontype,$set_safespace,$rndseed);
647: if ($target eq 'analyze') {
648: $questiontype = $env{'form.grade_questiontype'};
649: }
650: unless (defined($questiontype)) {
651: $questiontype = $Apache::lonhomework::type;
652: }
1.512.2.13.4. (raeburn 653:): if (($env{'request.state'} eq "construct")
654:): || ($symb eq '')
655:): || ($Apache::lonhomework::type eq 'practice')
656:): || ($Apache::lonhomework::history{'resource.CODE'})
657:): || (($env{'form.code_for_randomlist'}) && ($target eq 'analyze'))) {
1.316 www 658: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 659: ['rndseed']);
1.284 albertel 660: $rndseed=$env{'form.rndseed'};
1.159 albertel 661: if (!$rndseed) {
1.162 albertel 662: $rndseed=$Apache::lonhomework::history{'rndseed'};
663: if (!$rndseed) {
664: $rndseed=time;
665: }
1.512.2.13.4. (raeburn 666:): unless ($env{'form.code_for_randomlist'}) {
667:): $env{'form.rndseed'}=$rndseed;
668:): }
1.162 albertel 669: }
1.479 raeburn 670: if (($env{'request.state'} eq "construct") &&
671: ($Apache::lonhomework::type eq 'randomizetry')) {
672: my $tries = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
673: if ($tries) {
674: $rndseed += $tries;
675: }
1.480 raeburn 676: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 677: }
1.374 albertel 678: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
679: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 680: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 681: srand(time);
682: $rndseed=int(rand(2100000000));
1.284 albertel 683: $env{'form.rndseed'}=$rndseed;
684: delete($env{'form.resetdata'});
685: delete($env{'form.newrandomization'});
1.159 albertel 686: }
1.488 www 687: $rndseed=~s/\,/\:/g;
688: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 689: if (defined($rndseed)) {
690: my ($c1,$c2)=split(/\:/,$rndseed);
691: unless ($c2) { $c2=0; }
692: unless (($c1==int($c1)) && ($c2==int($c2))) {
693: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
694: }
1.187 albertel 695: }
1.512.2.13.4. (raeburn 696:): if (($env{'form.code_for_randomlist'}) && ($target eq 'analyze')) {
697:): $env{'form.CODE'} = $env{'form.code_for_randomlist'};
698:): $rndseed=&Apache::lonnet::rndseed();
699:): undef($env{'form.CODE'});
700:): } elsif ($Apache::lonhomework::history{'resource.CODE'}) {
1.247 albertel 701: $rndseed=&Apache::lonnet::rndseed();
702: }
1.479 raeburn 703: $set_safespace = 1;
704: } elsif ($questiontype eq 'randomizetry') {
705: if ($target eq 'analyze') {
706: if (defined($env{'form.grade_rndseed'})) {
707: $rndseed = $env{'form.grade_rndseed'};
708: }
709: }
710: unless (($target eq 'analyze') && (defined($rndseed))) {
711: $rndseed=&Apache::lonnet::rndseed();
1.512.2.9 raeburn 712: my $partfortries = $Apache::inputtags::part;
713: if (ref($probpartlist) eq 'ARRAY') {
714: if ((@{$probpartlist} == 1) && ($probpartlist->[0] ne $Apache::inputtags::part)) {
715: $partfortries = $probpartlist->[0];
716: }
717: }
718: my $curr_try = $Apache::lonhomework::history{"resource.$partfortries.tries"};
1.479 raeburn 719: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
720: $curr_try ++;
721: }
722: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
723: $rndseed = $1;
724: }
725: if ($curr_try) {
1.512.2.9 raeburn 726: my $reqtries = &Apache::lonnet::EXT("resource.$partfortries.randomizeontries");
1.479 raeburn 727: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
728: my $inc = int(($curr_try-1)/$reqtries);
729: $rndseed += $inc;
730: } else {
731: $rndseed += $curr_try;
732: }
733: }
734: }
735: $set_safespace = 1;
1.512.2.9 raeburn 736: if ($target eq 'grade') {
737: $Apache::lonhomework::rawrndseed = $rndseed;
738: }
1.479 raeburn 739: }
740: if ($set_safespace) {
741: if ($safeeval) {
742: &Apache::lonxml::debug("Setting rndseed to $rndseed");
743: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
744: }
745: }
746: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
747: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 748: }
749: return $rndseed;
1.105 albertel 750: }
751:
1.268 albertel 752: sub remember_problem_state {
753: return '
1.284 albertel 754: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
755: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
756: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 757: }
758:
1.487 www 759: sub problem_edit_action_button {
760: my ($name,$action,$accesskey,$text,$flag)=@_;
761: my $actionscript="setmode(this.form,'$action')";
762: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
763: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
764: }
765:
1.423 www 766: sub problem_edit_buttons {
1.487 www 767: my ($mode)=@_;
1.512.2.11 raeburn 768: # Buttons that save
769: my $result = '<div style="float:right">';
770: if ($mode eq 'editxml') {
771: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
772: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
773: } else {
774: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
775: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
776: }
777: $result.="\n</div>\n";
1.487 www 778: # Buttons that do not save
1.512.2.11 raeburn 779: $result .= '<div>'.
1.487 www 780: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
781: if ($mode eq 'editxml') {
782: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
783: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
1.512.2.11 raeburn 784: if ($env{'environment.nocodemirror'}) {
785: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
786: }
1.487 www 787: } else {
788: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
789: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
790: }
791: $result.="\n</div>";
792: return $result;
1.423 www 793: }
794:
795: sub problem_edit_header {
1.512.2.11 raeburn 796: my ($mode)=@_;
797: my $return = '<input type="hidden" name="submitted" value="edit" />'.
1.487 www 798: &remember_problem_state('edit').'
1.512.2.11 raeburn 799: <div class="LC_edit_problem_header">
800: <div class="LC_edit_problem_header_title">
801: '.&mt('Problem Editing').$mode.&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
802: </div><div class="LC_edit_actionbar" id="actionbar">'.
803: '<input type="hidden" name="problemmode" value="saveedit" />'.
804: &problem_edit_buttons();
805:
806: $return .= '</div></div>' . &Apache::lonxml::message_location();
807: $return .= '<link rel="stylesheet" href="/adm/codemirror/codemirror-combined.css" />
808: <script type="text/javascript" src="/adm/codemirror/codemirror-compressed-colorful.js"></script>';
809:
810: $return .= '<script type="text/javascript" src="/adm/jQuery/addons/jquery-scrolltofixed.js"></script>
811: <script type="text/javascript">
812: // unless internet explorer
813: if (!(window.navigator.appName == "Microsoft Internet Explorer" && (document.documentMode || document.compatMode))){
814: $(document).ready(
815: function() {
816: $(\'.LC_edit_actionbar\').scrollToFixed(
817: {
818: fixed: function(){
819: //$(this).find(\'.LC_edit_actionbar\').css(\'height\', \'31px\');
820: $(this).find(\'.LC_edit_actionbar\');
821: }
822: }
823: );
824: }
825: );
826: }
827: </script>
828: <table id="LC_edit_problem_colorful" border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
829: return $return;
1.105 albertel 830: }
831:
1.512.2.11 raeburn 832:
1.105 albertel 833: sub problem_edit_footer {
1.512.2.11 raeburn 834: my $resource = $env{'request.ambiguous'};
1.412 albertel 835: return '</td></tr></table><br />
836: <div class="LC_edit_problem_footer">
1.453 bisitz 837: <hr />'.
1.423 www 838: &problem_edit_buttons().'
1.459 bisitz 839: <hr style="clear:both;" />
1.512.2.11 raeburn 840: <script type="text/javascript">
841: restoreState("'.$resource.'");
842: restoreScrollPosition("'.$resource.'");
843: </script>
1.412 albertel 844: </div>
845: '.
1.342 albertel 846: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 847: }
848:
1.235 albertel 849: sub option {
850: my ($value,$name) = @_;
851: my $result ="<option value='".$value."' ";
1.284 albertel 852: if ($env{'form.'.$name} eq $value) {
1.235 albertel 853: $result.=" selected='on' ";
854: }
855: $result.='>';
856: return $result;
857: }
858:
1.105 albertel 859: sub problem_web_to_edit_header {
1.159 albertel 860: my ($rndseed)=@_;
1.406 albertel 861: my $result .= '<div class="LC_edit_problem_header">';
862:
863: if (!$Apache::lonhomework::parsing_a_task) {
864: $result .=
865: '<div class="LC_edit_problem_header_title">'.
866: &mt('Problem Testing').
867: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
868: '</div>';
869: } else {
870: $result .=
871: '<div class="LC_edit_problem_header_title">'.
872: &mt('Task Testing').
873: '</div>';
874: }
875:
1.315 albertel 876: my $show_all_foils_text =
877: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 878: &mt('Show All Instances')
879: : &mt('Show All Foils');
1.315 albertel 880:
1.452 bisitz 881: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
882: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 883: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 884: $show_all.= ' /> '.$show_all_foils_text
885: .'</label></span>';
1.406 albertel 886:
887:
1.384 albertel 888:
1.406 albertel 889: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 890: if (!$Apache::lonhomework::parsing_a_task) {
891: $result.="
1.406 albertel 892: <div class='LC_edit_problem_header_row1'>
893: <span class=\"LC_nobreak\">
1.405 albertel 894: ".&mt("Problem Status:")."
1.235 albertel 895: <select name='problemstate'>
1.270 albertel 896: <option value=''></option>
1.235 albertel 897: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
898: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
899: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
900: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
901: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
902: </select>
1.406 albertel 903: </span>
904: <span class=\"LC_nobreak\">
1.405 albertel 905: ".&mt("Problem Type:")."
1.235 albertel 906: <select name='problemtype'>
1.270 albertel 907: <option value=''></option>
1.512.2.1 raeburn 908: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 909: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 910: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 911: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
912: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
913: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 914: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 915: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 916: </select>
1.406 albertel 917: </span>
918: $show_all
919: </div>
920: <div class='LC_edit_problem_header_row2'>
921: <span class=\"LC_nobreak\">
1.405 albertel 922: ".&mt("Feedback Mode:")."
1.235 albertel 923: <select name='problemstatus'>
924: <option value=''></option>
1.242 albertel 925: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.512.2.6 raeburn 926: ".&option('no', 'problemstatus').&mt("Don't Show Incorrect/Correct Feedback")."</option>
1.405 albertel 927: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 928: </select>
1.406 albertel 929: </span>
930: ";
931:
1.376 albertel 932: } elsif ($Apache::lonhomework::parsing_a_task) {
933: $result.="
1.406 albertel 934: <div class='LC_edit_problem_header_row1'>
935: <span class=\"LC_nobreak\">
1.405 albertel 936: ".&mt("Problem Status:")."
1.376 albertel 937: <select name='problemstate'>
938: <option value=''></option>
939: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
940: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
941: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
942: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
943: </select>
1.406 albertel 944: </span>
945: $show_all
946: ";
947: }
948: $result.='
949: <span class="LC_nobreak">
950: '.&mt('Apply style file: ').'
951: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
952: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
953: </span>
1.422 www 954: </div>
955: <div class="LC_edit_problem_header_row1">'.
956: &Apache::lonxml::renderingoptions().'
1.406 albertel 957: </div>
958: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
959: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
960: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
961: </div>
1.453 bisitz 962: <hr />
1.406 albertel 963: <div class="LC_edit_problem_header_randomize_row">
964: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
965: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 966: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 967: $rndseed.'"
968: onchange="javascript:document.lonhomework.changerandseed.click()" />';
969:
970: if (!$Apache::lonhomework::parsing_a_task) {
971: my $numtoanalyze=$env{'form.numtoanalyze'};
972: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 973: $result .= '<span class="LC_nobreak">'.
974: &mt('[_1] for [_2] versions.',
1.416 raeburn 975: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 976: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
977: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 978: $numtoanalyze.'" size="5" />').
979: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
980: '</span>';
981:
1.313 albertel 982: }
1.406 albertel 983:
984: $result.='
985: </div>
1.453 bisitz 986: <hr />
1.447 bisitz 987: <div>';
1.416 raeburn 988: $result.='<input type="hidden" name="problemmode" value="view" />';
989: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
990: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
991: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
992: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 993: $result.='
994: </div>
1.453 bisitz 995: <hr />
1.409 albertel 996: '.&Apache::lonxml::message_location().'
1.406 albertel 997: </div>';
1.159 albertel 998: return $result;
1.48 albertel 999: }
1000:
1.65 albertel 1001: sub initialize_storage {
1.357 albertel 1002: my ($given_symb) = @_;
1.353 albertel 1003: undef(%Apache::lonhomework::results);
1004: undef(%Apache::lonhomework::history);
1.357 albertel 1005: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1006: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 1007:
1008: # anonymous users (CODEd exams) have no data
1009: if ($name eq 'anonymous'
1010: && !defined($domain)) {
1011: return;
1012: }
1013:
1.333 albertel 1014: if ($env{'request.state'} eq 'construct'
1015: || $symb eq ''
1016: || $Apache::lonhomework::type eq 'practice') {
1017:
1018: my $namespace = $symb || $env{'request.uri'};
1019: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 1020: ($env{'form.resetdata'} eq &mt('New Problem Variation')
1021: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 1022: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1023: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
1024: &Apache::lonxml::debug("Attempt reset");
1025: }
1.159 albertel 1026: %Apache::lonhomework::history=
1.333 albertel 1027: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.512.2.9 raeburn 1028: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1029: &Apache::lonxml::debug("Return message of $temp");
1030: } else {
1031: %Apache::lonhomework::history=
1032: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1033: }
1.353 albertel 1034:
1.159 albertel 1035: #ignore error conditions
1.512.2.9 raeburn 1036: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1037: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 1038: }
1039:
1.435 jms 1040: =pod
1041:
1042: =item finalize_storage()
1043:
1.512.2.9 raeburn 1044: Stores away the result hash to a student's environment;
1045: checks form.grade_ for specific values, otherwise stores
1046: to the running user's environment.
1047:
1048: &check_correctness_changes() is called in two circumstances
1049: in which the results hash is to be stored permanently, for
1050: grading triggered by a student's submission, where feedback on
1051: correctness is to be provided to the student.
1052:
1053: 1. Immediately prior to storing the results hash
1054:
1055: To handle the case where a student's submission (and award) were
1056: stored after history was retrieved in &initialize_storage(), e.g.,
1057: if a student submitted answers in quick succession (e.g., from
1058: multiple tabs). &Apache::inputtags::hidealldata() is called for
1059: any parts with out-of-order storage (i.e., correct then incorrect,
1060: where awarded >= 1 when correct).
1061:
1062: 2. Immediately after storing the results hash
1063:
1064: To handle the case where lond on the student's homeserver returns
1065: delay:N -- where N is the number of transactions between the last
1066: retrieved in &initialize_storage() and the last stored immediately
1067: before permanent storage of the current transaction via
1068: lond::store_handler(). &Apache::grades::makehidden() is called
1069: for any parts with out-of-order storage (i.e., correct then incorrect,
1070: where awarded >= 1 when correct).
1071:
1072: Will call &store_aggregates() to increment totals for attempts,
1073: students, and corrects, if running user has student role.
1.435 jms 1074:
1075: =cut
1076:
1077:
1.65 albertel 1078: sub finalize_storage {
1.357 albertel 1079: my ($given_symb) = @_;
1.159 albertel 1080: my $result;
1.289 albertel 1081: if (%Apache::lonhomework::results) {
1.323 albertel 1082: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
1083: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 1084: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1085: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 1086: if ($env{'request.state'} eq 'construct'
1087: || $symb eq ''
1088: || $Apache::lonhomework::type eq 'practice') {
1089: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 1090: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 1091: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 1092: $namespace,'',$domain,$name);
1.159 albertel 1093: &Apache::lonxml::debug('Construct Store return message:'.$result);
1094: } else {
1.512.2.9 raeburn 1095: my ($laststore,$checkedparts,@parts,%postcorrect);
1096: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1097: (!$Apache::lonhomework::scantronmode) && (!defined($env{'form.grade_symb'})) &&
1098: (!defined($env{'form.grade_courseid'}))) {
1099: if ($Apache::lonhomework::history{'version'}) {
1100: $laststore = $Apache::lonhomework::history{'version'}.'='.
1101: $Apache::lonhomework::history{'timestamp'};
1102: } else {
1103: $laststore = '0=0';
1104: }
1105: my %record = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1106: if ($record{'version'}) {
1107: my ($newversion,$oldversion,$oldtimestamp);
1108: if ($Apache::lonhomework::history{'version'}) {
1109: $oldversion = $Apache::lonhomework::history{'version'};
1110: $oldtimestamp = $Apache::lonhomework::history{'timestamp'};
1111: } else {
1112: $oldversion = 0;
1113: $oldtimestamp = 0;
1114: }
1115: if ($record{'version'} > $oldversion) {
1116: if ($record{'timestamp'} >= $oldtimestamp) {
1117: $laststore = $record{'version'}.'='.$record{'timestamp'};
1118: $newversion = $record{'version'} + 1;
1119: $checkedparts = 1;
1120: foreach my $key (keys(%Apache::lonhomework::results)) {
1121: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1122: my $part = $1;
1123: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1124: push(@parts,$part);
1125: }
1126: }
1127: }
1128: if (@parts) {
1129: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1130: \%record,\@parts,$newversion,
1131: $oldversion);
1132: if (@parts_to_hide) {
1133: foreach my $part (@parts_to_hide) {
1134: $postcorrect{$part} = 1;
1135: &Apache::inputtags::hidealldata($part);
1136: }
1137: }
1138: }
1139: }
1140: }
1141: }
1142: }
1.159 albertel 1143: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
1.512.2.9 raeburn 1144: $symb,$courseid,$domain,$name,$laststore);
1145: if ($result =~ /^delay\:(\d+)$/) {
1146: my $numtrans = $1;
1147: my ($oldversion) = split(/=/,$laststore);
1148: if ($numtrans) {
1149: my $newversion = $oldversion + 1 + $numtrans;
1150: my @possparts;
1151: if ($checkedparts) {
1152: foreach my $part (@parts) {
1153: unless ($postcorrect{$part}) {
1154: push(@possparts,$part);
1155: }
1156: }
1157: } else {
1158: foreach my $key (keys(%Apache::lonhomework::results)) {
1159: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1160: my $part = $1;
1161: unless ($postcorrect{$part}) {
1162: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1163: push(@possparts,$part);
1164: }
1165: }
1166: }
1167: }
1168: }
1169: if (@possparts) {
1170: my %newrecord = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1171: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1172: \%newrecord,\@possparts,$newversion,
1173: $oldversion);
1174: if (@parts_to_hide) {
1175: my $partslist = join(',',@parts_to_hide);
1176: &Apache::grades::makehidden($newversion,$partslist,\%newrecord,$symb,$domain,$name,1);
1177: }
1178: }
1179: }
1180: }
1.159 albertel 1181: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 1182: &store_aggregates($symb,$courseid);
1.159 albertel 1183: }
1.323 albertel 1184: } else {
1185: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 1186: }
1.159 albertel 1187: return $result;
1.65 albertel 1188: }
1189:
1.435 jms 1190: =pod
1191:
1.512.2.9 raeburn 1192: =item check_correctness_changes()
1193:
1194: For all parts for which current results contain a solved status
1195: of "incorrect_attempted", check if there was a transaction in which
1196: solved was set to "correct_by_student" in the time since the last
1197: transaction (retrieved when &initialize_storage() was called i.e.,
1198: when &start_problem() was called), unless:
1199: (a) questiontype parameter is set to survey or anonymous survey (+/- credit)
1200: (b) problemstatus is set to no or no_feedback_ever
1201: If such a transaction exists, and did not occur after "reset status"
1202: by a user with grading privileges, then the current transaction is an
1203: example of an out-of-order transaction (i.e., incorrect occurring after
1204: correct). Accordingly, the current transaction should be hidden.
1205:
1206: =cut
1207:
1208:
1209: sub check_correctness_changes {
1210: my ($symb,$courseid,$domain,$name,$record,$parts,$newversion,$oldversion) = @_;
1211: my @parts_to_hide;
1212: unless ((ref($record) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
1213: return @parts_to_hide;
1214: }
1215: if (@{$parts}) {
1216: my $usec;
1217: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1218: ($env{'request.course.id'} eq $courseid)) {
1219: $usec = $env{'request.course.sec'};
1220: } else {
1221: $usec = &Apache::lonnet::getsection($domain,$name,$courseid);
1222: }
1223: foreach my $id (@{$parts}) {
1224: next if (($Apache::lonhomework::results{'resource.'.$id.'.type'} =~ /survey/) ||
1225: (&Apache::lonnet::EXT("resource.$id.problemstatus",$symb,
1226: $domain,$name,$usec,undef,$courseid) =~ /^no/));
1227: my $reset;
1228: for (my $i=$newversion-1; $i>=$oldversion; $i--) {
1229: if (($record->{$i.':resource.'.$id.'.regrader'}) &&
1230: ($record->{$i.':resource.'.$id.'.tries'} eq '') &&
1231: ($record->{$i.':resource.'.$id.'.award'} eq '')) {
1232: $reset = 1;
1233: } elsif (($record->{$i.":resource.$id.solved"} eq 'correct_by_student') &&
1234: ($record->{$i.":resource.$id.awarded"} >= 1)) {
1235: unless ($reset) {
1236: push(@parts_to_hide,$id);
1237: last;
1238: }
1239: }
1240: }
1241: }
1242: }
1243: return @parts_to_hide;
1244: }
1245:
1246: =pod
1247:
1.435 jms 1248: item store_aggregates()
1249:
1250: Sends hash of values to be incremented in nohist_resourcetracker.db
1251: for the course. Increments total number of attempts, unique students
1252: and corrects for each part for an instance of a problem, as appropriate.
1253:
1254: =cut
1255:
1.285 raeburn 1256: sub store_aggregates {
1257: my ($symb,$courseid) = @_;
1.479 raeburn 1258: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 1259: my @parts;
1.288 albertel 1260: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
1261: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 1262: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 1263: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 1264: push(@parts, $1);
1.285 raeburn 1265: }
1266: }
1.286 albertel 1267: foreach my $part (@parts) {
1.470 raeburn 1268: if ($env{'request.role'} =~/^st/) {
1269: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
1270: eq 'APPROX_ANS' ||
1271: $Apache::lonhomework::results{'resource.'.$part.'.award'}
1272: eq 'EXACT_ANS') {
1273: $aggregate{$symb."\0".$part."\0correct"} = 1;
1274: }
1275: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1276: $aggregate{$symb."\0".$part."\0users"} = 1;
1277: } else {
1278: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1279: if ($last_reset) {
1280: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1281: $aggregate{$symb."\0".$part."\0users"} = 1;
1282: }
1283: }
1284: }
1285: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 1286: }
1.470 raeburn 1287: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 1288: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
1289: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
1290: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
1291: $randtrycounter{$symb."\0".$part} = 1;
1292: } else {
1293: $anoncounter{$symb."\0".$part} = 1;
1294: }
1.470 raeburn 1295: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
1296: if ($needsrelease) {
1297: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
1298: if ($curr_required eq '') {
1.471 raeburn 1299: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1300: } else {
1301: my ($currmajor,$currminor) = split(/\./,$curr_required);
1302: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
1303: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 1304: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1305: }
1.292 raeburn 1306: }
1307: }
1.285 raeburn 1308: }
1309: }
1.512.2.9 raeburn 1310: if (keys(%aggregate) > 0) {
1.289 albertel 1311: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 1312: $cdomain,$cname);
1313: }
1.472 raeburn 1314: if (keys(%anoncounter) > 0) {
1.481 raeburn 1315: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
1316: $cdomain,$cname);
1.472 raeburn 1317: }
1.479 raeburn 1318: if (keys(%randtrycounter) > 0) {
1.481 raeburn 1319: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
1320: $cdomain,$cname);
1.479 raeburn 1321: }
1.292 raeburn 1322: }
1.289 albertel 1323:
1.65 albertel 1324: sub checkout_msg {
1.211 albertel 1325: my %lt=&Apache::lonlocal::texthash(
1326: 'resource'=>'The resource needs to be checked out',
1327: '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.',
1328: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
1.512.2.1 raeburn 1329: 'checkout'=>'Check out Exam for Viewing',
1330: 'checkout?'=>'Check out Exam?');
1.352 albertel 1331: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 1332: return (<<ENDCHECKOUT);
1.211 albertel 1333: <h2>$lt{'resource'}</h2>
1334: <p>$lt{'id_expln'}</p>
1.449 bisitz 1335: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 1336: <form name="checkout" method="post" action="$uri">
1.91 albertel 1337: <input type="hidden" name="doescheckout" value="yes" />
1.512.2.4 raeburn 1338: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onclick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 1339: </form>
1340: ENDCHECKOUT
1341: }
1342:
1.252 albertel 1343: sub firstaccess_msg {
1.253 albertel 1344: my ($time,$symb)=@_;
1.414 albertel 1345: my $result;
1346: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1347: if ($interval[1] eq 'map') {
1348: my ($map)=&Apache::lonnet::decode_symb($symb);
1349: my $foldertitle=&Apache::lonnet::gettitle($map);
1350:
1351: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 1352: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
1353: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1354: ,$foldertitle,$time)."</p>";
1.414 albertel 1355: } elsif ($interval[1] eq 'course') {
1356: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 1357: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 1358: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 1359: ,$course,$time)."</p>";
1.414 albertel 1360: } else {
1361: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1362: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1363: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1364: ,$title,$time)."</p>";
1.414 albertel 1365: }
1.352 albertel 1366: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1367: my $buttontext = &mt('Show Resource');
1368: my $timertext = &mt('Start Timer?');
1.414 albertel 1369: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1370: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1371: <input type="hidden" name="markaccess" value="yes" />
1.512.2.4 raeburn 1372: <input type="button" name="accessbutton" value="$buttontext" onclick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1373: </form>
1374: ENDCHECKOUT
1.414 albertel 1375: return $result;
1.252 albertel 1376: }
1377:
1.204 albertel 1378: sub init_problem_globals {
1379: my ($type)=@_;
1380: #initialize globals
1.308 foxr 1381: # For problems, we start out in part 0 (outside a <part> tag).
1382: # and part 0 is used to describe the main body of the <problem>
1383: #
1.204 albertel 1384: if ($type eq 'problem') {
1385: $Apache::inputtags::part='0';
1386: @Apache::inputtags::partlist=('0');
1.405 albertel 1387: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1388: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1389:
1.266 albertel 1390: } elsif ($type eq 'library') {
1.204 albertel 1391: $Apache::inputtags::part='';
1392: @Apache::inputtags::partlist=();
1.405 albertel 1393: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1394: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1395:
1.304 albertel 1396: } elsif ($type eq 'Task') {
1397: $Apache::inputtags::part='0';
1398: @Apache::inputtags::partlist=('0');
1.405 albertel 1399: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1400: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1401: }
1.477 www 1402: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1403: @Apache::inputtags::responselist = ();
1404: @Apache::inputtags::importlist = ();
1405: @Apache::inputtags::previous=();
1406: @Apache::inputtags::previous_version=();
1.512.2.10 raeburn 1407: $Apache::inputtags::leniency='';
1.204 albertel 1408: $Apache::structuretags::printanswer='No';
1409: @Apache::structuretags::whileconds=();
1410: @Apache::structuretags::whilebody=();
1411: @Apache::structuretags::whileline=();
1412: $Apache::lonhomework::scantronmode=0;
1413: undef($Apache::lonhomework::name);
1.358 albertel 1414: undef($Apache::lonhomework::default_type);
1415: undef($Apache::lonhomework::type);
1.204 albertel 1416: }
1417:
1418: sub reset_problem_globals {
1419: my ($type)=@_;
1420: undef(%Apache::lonhomework::history);
1421: undef(%Apache::lonhomework::results);
1422: undef($Apache::inputtags::part);
1.512.2.10 raeburn 1423: undef($Apache::inputtags::leniency);
1.498 raeburn 1424: if ($type eq 'Task') {
1425: undef($Apache::inputtags::slot_name);
1.512.2.9 raeburn 1426: } elsif ($type eq 'problem') {
1427: undef($Apache::lonhomework::rawrndseed);
1.498 raeburn 1428: }
1.208 albertel 1429: #don't undef this, lonhomework.pm takes care of this, we use this to
1430: #detect if we try to do 2 problems in one file
1431: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1432: undef($Apache::lonhomework::name);
1.358 albertel 1433: undef($Apache::lonhomework::default_type);
1434: undef($Apache::lonhomework::type);
1435: undef($Apache::lonhomework::scantronmode);
1436: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1437: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1438: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1439: }
1440:
1.241 albertel 1441: sub set_problem_state {
1.240 albertel 1442: my ($part)=@_;
1.284 albertel 1443: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1444: $Apache::lonhomework::history{"resource.$part.solved"}=
1445: 'correct_by_student';
1446: }
1447: }
1448:
1.241 albertel 1449: sub get_problem_status {
1450: my ($part)=@_;
1.267 albertel 1451: my $problem_status;
1.284 albertel 1452: if ($env{'request.state'} eq 'construct' &&
1453: defined($env{'form.problemstatus'})) {
1454: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1455: } else {
1456: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1457: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1458: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1459: }
1460: return $problem_status;
1461: }
1462:
1.9 albertel 1463: sub start_problem {
1.326 albertel 1464: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1465:
1.311 foxr 1466: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1467: if (!$Apache::lonxml::metamode) {
1468: &Apache::lonxml::startredirection();
1469: }
1.311 foxr 1470:
1.308 foxr 1471: # Problems don't nest and we don't allow more than one <problem> in
1472: # a .problem file.
1473: #
1.184 albertel 1474: if ( $Apache::inputtags::part ne '' ||
1475: $Apache::lonhomework::parsing_a_problem) {
1476: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1477: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1478: return '';
1479: }
1.184 albertel 1480:
1481: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1482: &init_problem_globals('problem');
1.166 albertel 1483:
1.284 albertel 1484: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1485: $Apache::lonhomework::scantronmode=1;
1486: }
1.161 albertel 1487:
1.159 albertel 1488: if ($target ne 'analyze') {
1.415 raeburn 1489: my $type = &Apache::lonnet::EXT('resource.0.type');
1490: $Apache::lonhomework::type=$type;
1.284 albertel 1491: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1492: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1493: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1494: }
1.332 albertel 1495: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1496: }
1.164 albertel 1497: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1498: my $uri=$env{'request.uri'};
1.159 albertel 1499: if ($uri=~/\.(\w+)$/) {
1500: $Apache::lonhomework::type=$1;
1501: &Apache::lonxml::debug("Using type of $1");
1502: } else {
1503: $Apache::lonhomework::type='problem';
1504: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1505: }
1.87 albertel 1506: }
1.301 albertel 1507: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1508:
1.363 albertel 1509: &initialize_storage();
1.389 albertel 1510: if ($target ne 'analyze'
1511: && $env{'request.state'} eq 'construct') {
1512: &set_problem_state('0');
1513: }
1514:
1.366 albertel 1515: if ($target eq 'web') {
1516: &Apache::lonxml::debug(" grading history ");
1517: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1518: }
1.363 albertel 1519:
1.159 albertel 1520: #added vars to the scripting enviroment
1.213 albertel 1521: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1522: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1523: &Apache::run::run($expression,$safeeval);
1.159 albertel 1524: my $status;
1525: my $accessmsg;
1.508 raeburn 1526: my $resource_due;
1.159 albertel 1527:
1.343 albertel 1528: my $name= &get_resource_name($parstack,$safeeval);
1.512.2.9 raeburn 1529: my ($result,$form_tag_start,$slot_name,$slot,$probpartlist);
1.506 raeburn 1530:
1531: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1532: $target eq 'tex') {
1533: if ($env{'form.markaccess'}) {
1534: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1.512.2.13.4. (raeburn 1535:): my ($timelimit) = ($interval[0] =~ /^(\d+)/);
1536:): &Apache::lonnet::set_first_access($interval[1],$timelimit);
1.506 raeburn 1537: }
1538:
1539: ($status,$accessmsg,$slot_name,$slot) =
1540: &Apache::lonhomework::check_slot_access('0','problem');
1541: push (@Apache::inputtags::status,$status);
1542: }
1543:
1.354 albertel 1544: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1545: || $target eq 'edit') {
1.512.2.9 raeburn 1546: ($result,$form_tag_start,$probpartlist) =
1.350 albertel 1547: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1548: $name);
1.512.2.9 raeburn 1549: } elsif (($target eq 'grade') && ($Apache::lonhomework::type eq 'randomizetry')) {
1550: my ($symb)= &Apache::lonnet::whichuser();
1551: my $navmap = Apache::lonnavmaps::navmap->new();
1552: if (ref($navmap)) {
1553: my $res = $navmap->getBySymb($symb);
1554: if (ref($res)) {
1555: $probpartlist = $res->parts();
1556: }
1557: }
1.350 albertel 1558: }
1559:
1.284 albertel 1560: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1561:
1.479 raeburn 1562: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1563: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1564: $target eq 'tex') {
1.479 raeburn 1565:
1.159 albertel 1566: #handle rand seed in construction space
1.512.2.9 raeburn 1567: my $rndseed=&setup_rndseed($safeeval,$target,$probpartlist);
1568: if (($target eq 'grade') && &Apache::response::submitted()) {
1569: if ($Apache::lonhomework::type eq 'randomizetry') {
1570: $Apache::lonhomework::results{'resource.0.rndseed'}=$rndseed;
1571: } else {
1572: my @parts;
1573: if (ref($probpartlist) eq 'ARRAY') {
1574: @parts = @{$probpartlist};
1575: }
1576: unless (@parts) {
1577: $Apache::lonhomework::results{'resource.0.rndseed'}=$Apache::lonhomework::rawrndseed;
1578: }
1579: }
1580: }
1.367 albertel 1581: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 1582:
1.333 albertel 1583: if ($env{'request.state'} ne "construct" &&
1584: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1585: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1586: $rndseed.'" />'.
1587: '<input type="submit" name="resetdata"
1588: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1589: if (exists($env{'form.username'})) {
1590: $form_tag_start.=
1.164 albertel 1591: '<input type="hidden" name="username"
1.284 albertel 1592: value="'.$env{'form.username'}.'" />';
1.334 albertel 1593: }
1.462 raeburn 1594: if ($env{'request.role.adv'}) {
1595: $form_tag_start.= ' <label class="LC_nobreak">'
1596: .'<input type="checkbox" name="showallfoils"';
1597: if (defined($env{'form.showallfoils'})) {
1598: $form_tag_start.=' checked="checked"';
1599: }
1600: $form_tag_start.= ' /> '
1601: .&mt('Show All Foils')
1602: .'</label>';
1603: }
1.417 www 1604: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1605: $form_tag_start.=&practice_problem_header();
1.417 www 1606: }
1.462 raeburn 1607: $form_tag_start.='<hr />';
1.479 raeburn 1608: } elsif (($env{'request.state'} ne "construct") &&
1609: ($Apache::lonhomework::type eq 'randomizetry') &&
1610: ($status eq 'CAN_ANSWER')) {
1611: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1612: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1613: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1614: }
1.324 albertel 1615:
1.159 albertel 1616: my $expression='$external::datestatus="'.$status.'";';
1617: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1618: &Apache::run::run($expression,$safeeval);
1619: &Apache::lonxml::debug("Got $status");
1.324 albertel 1620:
1.159 albertel 1621: if (( $status eq 'CLOSED' ) ||
1622: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1623: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1624: ( $status eq 'BANNED') ||
1.216 albertel 1625: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1626: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1627: ( $status eq 'NOTRESERVABLE') ||
1628: ( $status eq 'RESERVABLE') ||
1629: ( $status eq 'RESERVABLE_LATER') ||
1.216 albertel 1630: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1631: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1632: $style);
1.159 albertel 1633: if ( $target eq "web" ) {
1.343 albertel 1634: my $msg;
1.159 albertel 1635: if ($status eq 'UNAVAILABLE') {
1.504 golterma 1636: $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1.441 raeburn 1637: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.504 golterma 1638: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1.499 raeburn 1639: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1640: ($status eq 'NOTRESERVABLE')) {
1.504 golterma 1641: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1.253 albertel 1642: } elsif ($status ne 'NOT_YET_VIEWED') {
1.504 golterma 1643: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1.499 raeburn 1644: }
1.216 albertel 1645: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1646: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1647: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1648: $msg.=&checkout_msg();
1.252 albertel 1649: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1650: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1651: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1652: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.499 raeburn 1653: } elsif ($status eq 'RESERVABLE') {
1654: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1655: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1656: '<br />'.
1657: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1658: } elsif ($status eq 'RESERVABLE_LATER') {
1659: $msg.=&mt('Window to make a reservation will open [_1].',
1660: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1661: } elsif ($status eq 'NOTRESERVABLE') {
1662: $msg.=&mt('Not available to make a reservation.');
1.159 albertel 1663: }
1664: $result.=$msg.'<br />';
1665: } elsif ($target eq 'tex') {
1.332 albertel 1666: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1667: : '\begin{minipage}{\textwidth}';
1.443 foxr 1668: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1669: $startminipage.'\vskip 0 mm';
1.159 albertel 1670: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1671: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1672: } else {
1.211 albertel 1673: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1674: }
1675: }
1.324 albertel 1676: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1677: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1678: $style);
1.324 albertel 1679: if ($target eq 'web') {
1.375 albertel 1680: $result .=
1681: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1682: } elsif ($target eq 'grade') {
1683: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1684: 'problem');
1685: }
1.159 albertel 1686: } elsif ($target eq 'web') {
1.508 raeburn 1687: if ($status eq 'CAN_ANSWER') {
1688: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1689: if ($slot_name ne '') {
1690: my $checked_in =
1691: $Apache::lonhomework::history{'resource.0.checkedin'};
1692: if ($checked_in eq '') {
1693: # unproctored slot access, self checkin
1694: &Apache::bridgetask::check_in('problem',undef,undef,
1695: $slot_name);
1696: $checked_in =
1697: $Apache::lonhomework::results{"resource.0.checkedin"};
1698: }
1699: if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1700: if ($slot->{'starttime'} < time()) {
1701: if (!$resource_due) {
1702: $resource_due = $slot->{'endtime'};
1703: } elsif ($slot->{'endtime'} < $resource_due) {
1704: $resource_due = $slot->{'endtime'};
1705: }
1706: }
1707: }
1708: }
1709: if ($resource_due) {
1710: my $time_left = $resource_due - time();
1711: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1712: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1713: }
1714: }
1715: }
1.368 albertel 1716: $result.="\n $form_tag_start \t".
1.227 albertel 1717: '<input type="hidden" name="submitted" value="yes" />';
1718: # create a page header and exit
1.284 albertel 1719: if ($env{'request.state'} eq "construct") {
1720: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1721: if ($Apache::lonhomework::type eq 'practice') {
1722: $result.= '<input type="submit" name="resetdata" '.
1723: 'value="'.&mt('New Problem Variation').'" />'.
1724: &practice_problem_header().'<hr />';
1725: }
1.227 albertel 1726: }
1727: # if we are viewing someone else preserve that info
1.284 albertel 1728: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1729: foreach my $field ('symb','courseid','domain','username') {
1730: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1731: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1732: }
1.479 raeburn 1733: foreach my $field ('trial','questiontype') {
1734: if ($env{"form.grade_$field"} ne '') {
1735: $result .= '<input type="hidden" name="grade_'.$field.
1736: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1737: }
1738: }
1.159 albertel 1739: }
1.490 raeburn 1740: if ($env{'form.grade_imsexport'}) {
1741: $result = '';
1742: }
1.159 albertel 1743: } elsif ($target eq 'tex') {
1.319 foxr 1744: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 1745: $result .= &select_metadata_hyphenation();
1746:
1.319 foxr 1747:
1.99 sakharuk 1748: }
1.159 albertel 1749: } elsif ($target eq 'edit') {
1.343 albertel 1750: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1751: $Apache::lonxml::warnings_error_header=
1752: &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 1753: my $temp=&Apache::edit::insertlist($target,$token);
1754: $result.=$temp;
1755: } elsif ($target eq 'modified') {
1756: $result=$token->[4];
1757: } else {
1758: # page_start returned a starting result, delete it if we don't need it
1759: $result = '';
1.99 sakharuk 1760: }
1.159 albertel 1761: return $result;
1.9 albertel 1762: }
1763:
1764: sub end_problem {
1.159 albertel 1765: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1766: my $result;
1.310 foxr 1767:
1.321 albertel 1768: if (!$Apache::lonxml::metamode) {
1769: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1770: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1771: }
1.319 foxr 1772:
1773: if ($target eq 'tex') {
1.321 albertel 1774: # Figure out the front matter and replace the
1775: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1776: # this in end_problem because whether or not we display due
1777: # dates depends on whether due dates have already been
1778: # displayed in the problem parts.
1779:
1.319 foxr 1780: my $frontmatter = '';
1781: my $startminipage = '';
1782: if (not $env{'form.problem_split'}=~/yes/) {
1783: $startminipage = '\begin{minipage}{\textwidth}';
1784: }
1785: my $id = $Apache::inputtags::part;
1786: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1787: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.512.2.9 raeburn 1788: my @packages = split(/,/,$packages);
1.319 foxr 1789: my $allow_print_points = 0;
1790: foreach my $partial_key (@packages) {
1791: if ($partial_key=~m/^part_0$/) {
1792: $allow_print_points=1;
1793: }
1794: }
1795: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1796: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1797: if (lc($env{'course.'.$env{'request.course.id'}.
1798: '.disableexampointprint'}) eq 'yes') {
1799: $allow_print_points=0;
1800: }
1801: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1802: 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 1803: &clear_required_languages();
1.319 foxr 1804: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1805: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1806:
1807: # Figure out what the due date is and if we need to print
1808: # it in the problem header. We have been logging the
1809: # last due date written to file.
1810:
1811: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1812: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1813: my $duedate_text = &mt('Due date: [_1]'
1814: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1815: my $temp_file;
1816: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1817:
1818: # Figure out what the last printed due date is or set it
1819: # to the epoch if no duedates have been printed.
1820:
1821: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1822: if (-e $filename) {
1823: $temp_file = Apache::File->new($filename);
1824: my @due_file = <$temp_file>;
1825: $due_file_content = $due_file[$#due_file];
1826: chomp $due_file_content;
1827: }
1828:
1829: # We display the due date iff it is not the same as the last
1830: # duedate in problem header ($due_file_content), and
1831: # none of our parts displayed a duedate.
1832: #
1833: my $parts_with_displayduedate;
1834: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1835: $parts_with_displayduedate =
1836: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1837: } else {
1838: $parts_with_displayduedate = 0;
1839: }
1840: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1841: $temp_file = Apache::File->new('>'.$filename);
1842: print $temp_file "$duetime\n";
1843: if (not $env{'request.symb'} =~ m/\.page_/) {
1844: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1845: $frontmatter .= $begin_doc.
1.448 bisitz 1846: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1847: } else {
1848: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1849: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1850: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1851: }
1.319 foxr 1852: }
1853: } else {
1.448 bisitz 1854: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1855: }
1856: } else {
1857: if (not $env{'request.symb'} =~ m/\.page_/) {
1858: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1859: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1860: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1861: }
1.319 foxr 1862: } else {
1.381 albertel 1863: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1864: }
1865: }
1866: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1867: }
1868:
1.159 albertel 1869: my $status=$Apache::inputtags::status['-1'];
1870: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1871: $target eq 'tex') {
1.249 albertel 1872: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1873: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1874: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1875: &Apache::inputtags::grade;
1.324 albertel 1876: } elsif ($status eq 'NEEDS_CHECKIN') {
1877: # no need to grade, and don't want to hide data
1.249 albertel 1878: } else {
1879: # move any submission data to .hidden
1880: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1881: }
1.159 albertel 1882: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1883: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1884: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1885: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1886: # if part is zero, no <part>s existed, so we need show the current
1887: # grading status
1888: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1889: $result.= $gradestatus;
1890: }
1891: if (
1.284 albertel 1892: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1893: ($target eq 'answer') || ($target eq 'tex')
1894: ) {
1.490 raeburn 1895: if (($target ne 'tex') &&
1896: ($env{'form.answer_output_mode'} ne 'tex') &&
1897: (!$env{'form.grade_imsexport'})) {
1.254 www 1898: $result.="</form>";
1.159 albertel 1899: }
1900: if ($target eq 'web') {
1.507 raeburn 1901: #
1902: # Closing </body></html> not added by end_page().
1903: # Added separately at end of this routine, after added
1904: # <script></script> so document will be valid xhtml.
1905: #
1906: $result.= &Apache::loncommon::end_page({'discussion' => 1,
1907: 'notbody' => 1});
1.159 albertel 1908: } elsif ($target eq 'tex') {
1.178 sakharuk 1909: my $endminipage = '';
1.284 albertel 1910: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1911: $endminipage = '\end{minipage}';
1912: }
1.284 albertel 1913: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1914: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1915: } else {
1.262 sakharuk 1916: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1917: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1918: $result .= $endminipage.'\end{document} ';
1919: } else {
1.382 albertel 1920: $result .= $endminipage;
1.262 sakharuk 1921: }
1.159 albertel 1922: }
1923: }
1924: }
1.476 www 1925: if ($target eq 'web') {
1926: $result.=&Apache::functionplotresponse::init_script();
1927: }
1.159 albertel 1928: if ($target eq 'grade') {
1929: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1930: &finalize_storage();
1931: }
1.284 albertel 1932: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1933: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1934: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1935: # normally we get it from above, but in CSTR
1.172 albertel 1936: # we always show answer mode too.
1.159 albertel 1937: }
1938: } elsif ($target eq 'meta') {
1939: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1940: @Apache::inputtags::response=();
1.159 albertel 1941: $result=&Apache::response::mandatory_part_meta;
1942: }
1.215 albertel 1943: $result.=&Apache::response::meta_part_order();
1.258 albertel 1944: $result.=&Apache::response::meta_response_order();
1.159 albertel 1945: } elsif ($target eq 'edit') {
1946: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1947: $result .= &problem_edit_footer();
1.320 albertel 1948: } elsif ($target eq 'modified') {
1949: $result .= $token->[2];
1.159 albertel 1950: }
1.155 albertel 1951:
1.284 albertel 1952: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1953: &Apache::inputtags::check_for_duplicate_ids();
1954: }
1.204 albertel 1955:
1956: &reset_problem_globals('problem');
1.159 albertel 1957:
1.502 foxr 1958: #
1959: # This shouild be just above the return so that the
1960: # time put in the javascript is as late as possible in the
1961: # computation:
1962: #
1963: if ($target eq 'web') {
1964: $result .= &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 1965: #
1966: # Closing tags delayed so any <script></script> tags
1967: # not in head can appear inside body, for valid xhtml.
1968: #
1969: $result .= "</body>\n</html>";
1.502 foxr 1970: }
1.159 albertel 1971: return $result;
1.48 albertel 1972: }
1973:
1.108 albertel 1974:
1.48 albertel 1975: sub start_library {
1.159 albertel 1976: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1977: my ($result,$form_tag_start);
1.371 albertel 1978: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1979: &init_problem_globals('library');
1980: $Apache::lonhomework::type='problem';
1981: }
1.159 albertel 1982: if ($target eq 'edit') {
1.343 albertel 1983: ($result,$form_tag_start)=
1984: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1985: 'Edit');
1986: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1987: my $temp=&Apache::edit::insertlist($target,$token);
1988: $result.=$temp;
1989: } elsif ($target eq 'modified') {
1990: $result=$token->[4];
1.340 albertel 1991: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1992: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1993: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1994: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1995: ($result,$form_tag_start)=
1996: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1997: $name);
1.479 raeburn 1998: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 1999: $result.=" \n $form_tag_start".
1.159 albertel 2000: '<input type="hidden" name="submitted" value="yes" />';
2001: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 2002: if ($Apache::lonhomework::type eq 'practice') {
2003: $result.= '<input type="submit" name="resetdata" '.
2004: 'value="'.&mt('New Problem Variation').'" />'.
2005: &practice_problem_header().'<hr />';
2006: }
1.159 albertel 2007: }
2008: return $result;
1.48 albertel 2009: }
2010:
2011: sub end_library {
1.159 albertel 2012: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2013: my $result='';
2014: if ($target eq 'edit') {
2015: $result=&problem_edit_footer();
1.371 albertel 2016: } elsif ($target eq 'web'
2017: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
2018: && $env{'request.state'} eq "construct") {
1.349 albertel 2019: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.512.2.13.4. (raeburn 2020:): } elsif ($target eq 'meta') {
2021:): $result.=&Apache::response::meta_response_order();
1.159 albertel 2022: }
1.371 albertel 2023: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
2024: &reset_problem_globals('library');
2025: }
1.159 albertel 2026: return $result;
1.197 www 2027: }
2028:
2029: sub start_definetag {
1.326 albertel 2030: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 2031:
2032: my $result;
2033:
2034: my $name = $token->[2]->{'name'};
1.326 albertel 2035: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 2036: if ($target eq 'web') {
2037: if ($name=~/^\//) {
2038: $result=
2039: '<br /><table class="LC_sty_end"><tr><th>'.
2040: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2041: } else {
2042: $result=
2043: '<br /><table class="LC_sty_begin"><tr><th>'.
2044: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2045: }
2046: $skip = &HTML::Entities::encode($skip, '<>&"');
2047: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 2048: }
2049: return $result;
2050: }
2051:
2052: sub end_definetag {
2053: return '';
1.1 albertel 2054: }
2055:
2056: sub start_block {
1.201 albertel 2057: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 2058:
2059: my $result;
1.1 albertel 2060:
1.339 albertel 2061: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2062: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 2063: my $code = $token->[2]->{'condition'};
1.385 albertel 2064: if (defined($code) && $code ne '') {
1.137 albertel 2065: if (!$Apache::lonxml::default_homework_loaded) {
2066: &Apache::lonxml::default_homework_load($safeeval);
2067: }
1.131 albertel 2068: $result = &Apache::run::run($code,$safeeval);
2069: &Apache::lonxml::debug("block :$code: returned :$result:");
2070: } else {
2071: $result='1';
2072: }
2073: if ( ! $result ) {
1.201 albertel 2074: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 2075: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2076: }
2077: $result='';
2078: } elsif ($target eq 'edit') {
2079: $result .=&Apache::edit::tag_start($target,$token);
2080: $result .=&Apache::edit::text_arg('Test Condition:','condition',
2081: $token,40);
2082: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2083: } elsif ($target eq 'modified') {
2084: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2085: $safeeval,'condition');
2086: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 2087: }
1.131 albertel 2088: return $result;
1.1 albertel 2089: }
2090:
2091: sub end_block {
1.167 www 2092: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2093: my $result;
2094: if ($target eq "edit") {
2095: $result.= &Apache::edit::tag_end($target,$token,'');
2096: }
2097: return $result;
2098: }
1.500 foxr 2099: #
2100: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
2101: # ...
2102: # </languageblock>
2103: #
2104: # This declares the intent to provide content that can be rendered in the
2105: # set of languages in the include specificatino but not in the exclude
2106: # specification. If a currently preferred language is in the include list
2107: # the content in the <languageblock>...</languageblock> is rendered
2108: # If the currently preferred language is in the exclude list,
2109: # the content in the <languageblock>..></languageblock is not rendered.
2110: #
2111: # Pathalogical case handling:
2112: # - Include specified, without the preferred language but exclude specified
2113: # also without the preferred langauge results in rendering the block.
2114: # - Exclude specified without include and excluden not containing a
2115: # preferred language renders the block.
2116: # - Include and exclude both specifying the preferred language does not
2117: # render the block.
2118: # - If neither include/exclude is specified, the block gets rendered.
2119: #
2120: # This tag has no effect when target is in {edit, modified}
2121: #
1.167 www 2122: sub start_languageblock {
1.201 albertel 2123: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 2124:
1.500 foxr 2125: my $result = '';
1.167 www 2126:
1.339 albertel 2127: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2128: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 2129: my $include = $token->[2]->{'include'};
2130: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 2131: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 2132:
2133: # This should not even happen, since we should at least have the server language
2134:
2135: if (!$preferred_languages[0]) {
2136: $preferred_languages[0]='en';
2137: }
2138:
2139: # Now loop over all languages in order of preference
2140:
2141: my $render;
1.398 www 2142: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 2143:
2144: # If neither include/nor exlude is present the block is going
2145: # to get rendered.
2146:
1.399 www 2147: my $found=0;
1.500 foxr 2148: $render=1;
2149:
2150: # If include is specified, don't render the block
2151: # unless the preferred language is included in the set.
2152:
1.398 www 2153: if ($include) {
1.500 foxr 2154: $render=0;
1.398 www 2155: foreach my $included_language (split(/\,/,$include)) {
2156: if ($included_language eq $preferred_language) {
1.500 foxr 2157: $render=1;
1.399 www 2158: $found=1;
1.500 foxr 2159: last; # Only need to find the first.
1.398 www 2160: }
2161: }
2162: }
1.500 foxr 2163: # Do we have an exclude argument?
2164: # If so, and one of the languages matches a preferred language
2165: # inhibit rendering the block. Note that in the pathalogical case the
2166: # author has specified a preferred language in both the include and exclude
2167: # attribte exclude is preferred.
2168:
1.398 www 2169: if ($exclude) {
1.500 foxr 2170: $render=1;
1.398 www 2171: foreach my $excluded_language (split(/\,/,$exclude)) {
2172: if ($excluded_language eq $preferred_language) {
1.500 foxr 2173: $render=0;
1.399 www 2174: $found=1;
1.500 foxr 2175: last; # Only need to find the first.
1.398 www 2176: }
2177: }
2178: }
1.500 foxr 2179: if ($found) {
2180: last; # Done on any match of include or exclude.
2181: }
1.398 www 2182: }
1.500 foxr 2183: # If $render not true skip the entire block until </languageblock>
2184: #
2185:
2186: if ( ! $render ) {
1.201 albertel 2187: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
2188: $style);
2189: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2190: }
1.500 foxr 2191: # If $render is true, we've not skipped the contents of the <languageglock>
2192: # and the normal loncapa processing flow will render it as a matter of course.
2193:
1.167 www 2194: } elsif ($target eq 'edit') {
2195: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2196: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 2197: $token,40);
1.211 albertel 2198: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 2199: $token,40);
2200: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2201: } elsif ($target eq 'modified') {
2202: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 2203: $safeeval,'include',
2204: 'exclude');
1.167 www 2205: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2206: }
2207: return $result;
2208: }
2209:
2210: sub end_languageblock {
1.170 www 2211: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2212: my $result;
1.201 albertel 2213: if ($target eq "edit") {
1.170 www 2214: $result.= &Apache::edit::tag_end($target,$token,'');
2215: }
2216: return $result;
2217: }
1.500 foxr 2218: # languagblock specific tags:
2219: {
2220: # For chunks of a resource that has translations, this hash contains
2221: # the translations available indexed by language name.
2222: #
2223:
2224: my %available_texts;
1.170 www 2225:
1.500 foxr 2226: # <translated> starts a block of a resource that has multiple translations.
2227: # See the <lang> tag as well.
2228: # When </translated> is encountered if there is a translation for the
2229: # currently preferred language, that is rendered inthe web/tex/webgrade
2230: # targets. Otherwise, the default text is rendered.
2231: #
2232: # Note that <lang> is only registered for the duration of the
2233: # <translated>...</translated> block
2234: #
2235: # Pathalogical case handling:
2236: # - If there is no <lang> that specifies a 'default' and there is no
2237: # translation that matches a preferred language, nothing is rendered.
2238: # - Nested <translated>...</translated> might be linguistically supported by
2239: # XML due to the stack nature of tag registration(?) however the rendered
2240: # output will be incorrect because there is only one %available_texts
2241: # has and end_translated clears it.
2242: # - Material outside of a <lang>...</lang> block within the
2243: # <translated>...<translated> block won't render either e.g.:
2244: # <translated>
2245: # The following will be in your preferred langauge:
2246: # <lang which='en'>
2247: # This section in english
2248: # </lang>
2249: # <lang which='sgeiso'>
2250: # Hier es ist auf Deutsch.
2251: # </lang>
2252: # <lang which='sfriso'>
2253: # En Francais
2254: # </lang>
2255: # </translated>
2256: #
2257: # The introductory text prior to the first <lang> tag is not rendered.
2258: #
1.397 albertel 2259: sub start_translated {
2260: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2261: &Apache::lonxml::register('Apache::structuretags',('lang'));
2262: undef(%available_texts);
2263: }
2264:
2265: sub end_translated {
2266: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2267: my $result;
2268: #show the translation on viewable targets
2269: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
2270: # or non-viewable targets, if it's embedded in something that
2271: # wants the output
2272: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
2273: && &Apache::lonxml::in_redirection() ) ) {
2274: my @possibilities = keys(%available_texts);
2275: my $which =
2276: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 2277: if ($target eq 'tex') {
2278: $result = &select_hyphenation($which);
2279: }
2280: $result .= $available_texts{$which};
2281: if ($target eq 'tex') {
2282: $result .= &select_metadata_hyphenation(); # Restore original language.
2283: }
1.397 albertel 2284: }
2285: undef(%available_texts);
2286: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
2287: return $result;
2288: }
2289:
1.500 foxr 2290: # <lang [which='language-name'] [other='lang1,lang2...']>
2291: # Specifies that the block contained within it is a translation
2292: # for a specific language specified by the 'which' attribute. The
2293: # 'other' attribute can be used by itself or in conjunction with
2294: # which to specify this tag _may_ be used as a translation for some
2295: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
2296: # specifying that the block provides a translation for US (primary)
2297: # Canadian, Australian and UK Englush.
2298: #
2299: # Comment: this seems a bit silly why not just support a list of languages
2300: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
2301: #
2302: # Effect:
2303: # The material within the <lang>..</lang> block is stored in the
2304: # specified set of $available_texts hash entries, the appropriate one
2305: # is selected at </translated> time.
2306: #
2307: # Pathalogical case handling:
2308: # If a language occurs multiple times within a <translated> block,
2309: # only the last one is rendered e.g.:
2310: #
2311: # <translated>
2312: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
2313: # Red green color blindness is quite common affecting about 7.8% of
2314: # the male population, but onloy about .65% of the female population.
2315: # </lang>
2316: # Red green colour blindness is quite common affecting about 7.8% of
2317: # the male population, but onloy about .65% of the female population.
2318: # <lang which='seniso', other='senisoCA,senisoAU'>
2319: # </translated>
2320: #
2321: # renders the correct spelling of color (colour) for people who have specified
2322: # a preferred language that is one of the British Commonwealth languages
2323: # even though those are also listed as valid selections for the US english
2324: # <lang> block.
2325: #
1.397 albertel 2326: sub start_lang {
2327: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2328: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2329: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2330: &Apache::lonxml::startredirection();
2331: }
2332: return '';
2333: }
2334:
2335: sub end_lang {
2336: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2337: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2338: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2339: my $result = &Apache::lonxml::endredirection();
2340: my $which = &Apache::lonxml::get_param('which',$parstack,
2341: $safeeval);
1.431 raeburn 2342: if ($which=~/\w/) {
2343: $available_texts{$which} = $result;
2344: }
2345: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
2346: $safeeval);
2347: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
2348: if ($language=~/\w/) {
2349: $available_texts{$language} = $result;
2350: }
1.427 bisitz 2351: }
2352:
1.397 albertel 2353: }
2354: return '';
2355: }
1.500 foxr 2356: } # end langauge block specific tags.
2357:
1.397 albertel 2358:
1.170 www 2359: sub start_instructorcomment {
1.201 albertel 2360: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 2361:
2362: my $result;
2363:
1.339 albertel 2364: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2365: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 2366: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 2367: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 2368: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
2369: $parser,$style);
1.170 www 2370: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2371: }
2372: $result='';
2373: } elsif ($target eq 'edit') {
2374: $result .=&Apache::edit::tag_start($target,$token);
2375: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2376: }
2377: return $result;
2378: }
2379:
2380: sub end_instructorcomment {
1.159 albertel 2381: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2382: my $result;
2383: if ($target eq "edit") {
2384: $result.= &Apache::edit::tag_end($target,$token,'');
2385: }
2386: return $result;
1.4 tsai 2387: }
2388:
2389: sub start_while {
1.326 albertel 2390: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2391:
1.160 albertel 2392: my $result;
1.339 albertel 2393: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2394: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2395: my $code = $token->[2]->{'condition'};
1.4 tsai 2396:
1.160 albertel 2397: push( @Apache::structuretags::whileconds, $code);
2398: if (!$Apache::lonxml::default_homework_loaded) {
2399: &Apache::lonxml::default_homework_load($safeeval);
2400: }
2401: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2402: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2403: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2404: push( @Apache::structuretags::whileline, $token->[5]);
2405: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2406: if ( $result ) {
2407: &Apache::lonxml::newparser($parser,\$bodytext);
2408: }
2409: } elsif ($target eq 'edit') {
2410: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2411: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2412: $token,40);
2413: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2414: } elsif ($target eq 'modified') {
2415: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2416: $safeeval,'condition');
2417: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2418: }
1.160 albertel 2419: return $result;
1.4 tsai 2420: }
2421:
2422: sub end_while {
1.159 albertel 2423: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2424: my $result;
2425:
1.339 albertel 2426: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2427: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2428: my $code = pop(@Apache::structuretags::whileconds);
2429: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2430: my $line = pop(@Apache::structuretags::whileline);
2431: my $return = &Apache::run::run($code,$safeeval);
2432: my $starttime=time;
2433: my $error=0;
2434: while ($return) {
2435: if (time-$starttime >
2436: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2437: $return = 0; $error=1; next;
1.161 albertel 2438: }
2439: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2440: if ($target eq 'grade' || $target eq 'answer' ||
2441: $target eq 'analyze') {
2442: # grade/answer/analyze should produce no output but if we
2443: # are redirecting, the redirecter should know what to do
2444: # with the output
2445: if (!$Apache::lonxml::redirection) { undef($result); }
2446: }
1.161 albertel 2447: $return = &Apache::run::run($code,$safeeval);
2448: }
1.512.2.5 raeburn 2449: if ($error) {
2450: &Apache::lonxml::error(
2451: '<pre>'
2452: .&mt('Code ran too long. It ran for more than [_1] seconds.',
2453: $Apache::lonnet::perlvar{'lonScriptTimeout'})
2454: .&mt('This occurred while running <while> on line [_1].',
2455: $line)
2456: .'</pre>');
2457: }
1.160 albertel 2458: } elsif ($target eq "edit") {
2459: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2460: }
1.160 albertel 2461: return $result;
1.1 albertel 2462: }
1.6 tsai 2463:
1.160 albertel 2464: # <randomlist show="1">
1.6 tsai 2465: # <tag1>..</tag1>
2466: # <tag2>..</tag2>
2467: # <tag3>..</tag3>
1.160 albertel 2468: # ...
1.6 tsai 2469: # </randomlist>
2470: sub start_randomlist {
1.326 albertel 2471: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2472: my $result;
1.339 albertel 2473: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2474: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2475: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2476: my $b_parser= HTML::LCParser->new(\$body);
2477: $b_parser->xml_mode(1);
2478: $b_parser->marked_sections(1);
1.159 albertel 2479: my $b_tok;
2480: my @randomlist;
2481: my $list_item;
2482: while($b_tok = $b_parser->get_token() ) {
2483: if($b_tok->[0] eq 'S') { # start tag
2484: # get content of the tag until matching end tag
2485: # get all text upto the matching tag
2486: # and push the content into @randomlist
2487: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2488: $b_parser);
2489: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2490: push(@randomlist,$list_item);
2491: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2492: # $list_item</b>";
2493: }
2494: if($b_tok->[0] eq 'T') { # text
2495: # what to do with text in between tags?
2496: # print "<b>TEXT $b_tok->[1]</b><br />";
2497: }
2498: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2499: # print "<b>END-TAG $b_tok->[1]</b><br />";
2500: # }
2501: }
1.303 albertel 2502: if (@randomlist) {
2503: my @idx_arr = (0 .. $#randomlist);
1.512.2.13.4. (raeburn 2504:): if ($env{'form.code_for_randomlist'}) {
2505:): &Apache::structuretags::shuffle(\@idx_arr,$target);
2506:): undef($env{'form.code_for_randomlist'});
2507:): } else {
2508:): &Apache::structuretags::shuffle(\@idx_arr);
2509:): }
1.303 albertel 2510: my $bodytext = '';
2511: my $show=$#randomlist;
2512: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2513: $showarg--;
2514: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2515: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2516: my @currlist;
2517: my $part = $Apache::inputtags::part;
2518: if ($part ne '') {
2519: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2520: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2521: if (!(grep(/^\Q$part\E$/,@currlist))) {
2522: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2523: }
2524: } else {
2525: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2526: }
2527: }
2528: }
1.512.2.9 raeburn 2529: for my $i (0 .. $show) {
2530: $bodytext .= "$randomlist[ $idx_arr[$i] ]";
1.303 albertel 2531: }
2532: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2533: }
2534: } elsif ($target eq 'edit' ) {
2535: $result .=&Apache::edit::tag_start($target,$token);
2536: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2537: $token,5);
2538: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2539: } elsif ($target eq 'modified' ) {
2540: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2541: $safeeval,'show');
2542: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2543: }
2544: return $result;
1.7 tsai 2545: }
2546:
2547: sub shuffle {
1.512.2.13.4. (raeburn 2548:): my ($a,$target) = @_;
1.7 tsai 2549: my $i;
1.303 albertel 2550: if (ref($a) eq 'ARRAY' && @$a) {
1.512.2.13.4. (raeburn 2551:): &Apache::response::pushrandomnumber(undef,$target);
1.159 albertel 2552: for($i=@$a;--$i;) {
2553: my $j=int(&Math::Random::random_uniform() * ($i+1));
2554: next if $i == $j;
2555: @$a[$i,$j] = @$a[$j,$i];
2556: }
1.251 albertel 2557: &Apache::response::poprandomnumber();
1.7 tsai 2558: }
1.6 tsai 2559: }
2560:
2561: sub end_randomlist {
1.159 albertel 2562: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2563: my $result;
2564: if ($target eq 'edit' ) {
2565: $result=&Apache::edit::tag_end($target,$token,
2566: 'End Randomly Parsed Block');
2567: }
2568: return $result;
1.6 tsai 2569: }
2570:
1.283 albertel 2571: sub ordered_show_check {
2572: my $last_part=$Apache::inputtags::partlist[-2];
2573: my $in_order=
2574: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2575: my $in_order_show=1;
2576: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2577: $in_order_show=&Apache::response::check_status($last_part);
2578: }
2579: return $in_order_show;
2580: }
2581:
1.469 www 2582:
2583: sub start_startpartmarker {
2584: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2585: my $result='';
2586: if ($target eq 'edit') {
2587: $result=&Apache::edit::tag_start($target,$token);
2588: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2589: $result.=&Apache::edit::end_table();
2590:
2591: }
2592: return $result;
2593: }
2594:
2595: sub end_startpartmarker {
2596: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2597: my @result;
2598: if ($target eq 'edit') { $result[1]='no'; }
2599: return @result;
2600: }
2601:
2602: sub start_endpartmarker {
2603: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2604: my $result='';
2605: if ($target eq 'edit') {
2606: $result=&Apache::edit::tag_start($target,$token);
2607: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2608: $result.=&Apache::edit::end_table();
2609:
2610: }
2611: return $result;
2612: }
2613:
2614: sub end_endpartmarker {
2615: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2616: my @result;
2617: if ($target eq 'edit') { $result[1]='no'; }
2618: return @result;
2619: }
2620:
2621:
2622:
2623:
2624:
1.11 albertel 2625: sub start_part {
1.326 albertel 2626: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2627: if (!$Apache::lonxml::metamode) {
2628: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2629: # duedates.
2630: }
1.159 albertel 2631: my $result='';
1.386 albertel 2632: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2633: $Apache::inputtags::part=$id;
1.177 albertel 2634: push(@Apache::inputtags::partlist,$id);
1.512.2.10 raeburn 2635: $Apache::inputtags::leniency='';
1.177 albertel 2636: @Apache::inputtags::response=();
1.159 albertel 2637: @Apache::inputtags::previous=();
2638: @Apache::inputtags::previous_version=();
1.405 albertel 2639: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2640: &Apache::response::reset_params();
2641:
1.159 albertel 2642: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2643: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2644: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.512.2.9 raeburn 2645: if ($Apache::lonhomework::type eq 'randomizetry') {
2646: my $rndseed=&setup_rndseed($safeeval,$target);
2647: if (($target eq 'grade') && &Apache::response::submitted()) {
2648: $Apache::lonhomework::results{"resource.$id.rndseed"}=$rndseed;
2649: }
2650: } elsif (($target eq 'grade') && &Apache::response::submitted()) {
2651: $Apache::lonhomework::results{"resource.$id.rndseed"}=$Apache::lonhomework::rawrndseed;
2652: }
1.283 albertel 2653: my $in_order_show=&ordered_show_check();
1.214 albertel 2654: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2655: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2656: &Apache::run::run($expression,$safeeval);
1.159 albertel 2657:
2658: if ($target eq 'meta') {
1.224 www 2659: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2660: return &Apache::response::mandatory_part_meta.
2661: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2662: } elsif ($target eq 'web' || $target eq 'grade' ||
2663: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2664: if ($hidden || !$in_order_show) {
1.326 albertel 2665: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2666: } else {
2667: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2668: push (@Apache::inputtags::status,$status);
2669: my $expression='$external::datestatus="'.$status.'";';
2670: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2671: &Apache::run::run($expression,$safeeval);
1.284 albertel 2672: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2673: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2674: }
1.216 albertel 2675: if (( $status eq 'CLOSED' ) ||
2676: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2677: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2678: ( $status eq 'BANNED') ||
2679: ( $status eq 'UNAVAILABLE') ||
2680: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2681: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2682: $style);
1.159 albertel 2683: if ( $target eq "web" ) {
1.211 albertel 2684: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2685: } elsif ( $target eq 'tex' ) {
1.284 albertel 2686: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2687: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2688: } else {
1.211 albertel 2689: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2690: }
1.159 albertel 2691: }
2692: } else {
2693: if ($target eq 'tex') {
1.284 albertel 2694: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2695: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2696: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2697: } else {
2698: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2699: }
1.195 sakharuk 2700: }
1.159 albertel 2701: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2702: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.512.2.9 raeburn 2703: my @allkeys = split(/,/,$allkeys);
1.222 sakharuk 2704: my $allow_print_points = 0;
2705: foreach my $partial_key (@allkeys) {
1.230 albertel 2706: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2707: if ($1 ne '0') {$allow_print_points=1;}
2708: }
2709: }
1.275 albertel 2710: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2711: if (defined($maxtries) && $maxtries < 0) {
2712: $allow_print_points=0;
2713: }
1.302 albertel 2714: if (lc($env{'course.'.$env{'request.course.id'}.
2715: '.disableexampointprint'}) eq 'yes') {
2716: $allow_print_points=0;
2717: }
1.463 foxr 2718: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2719: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2720:
2721: }
1.233 www 2722: } elsif ($target eq 'web') {
1.479 raeburn 2723: if ($status eq 'CAN_ANSWER') {
2724: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2725: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
2726: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
2727: my $num = scalar(@Apache::inputtags::partlist)-1;
2728: if ($probrandomize eq 'randomizetry') {
2729: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
2730: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2731: } else {
2732: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2733: if ($probrandtries ne $reqtries) {
2734: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2735: }
2736: }
2737: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
2738: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2739: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2740: }
2741: }
1.475 raeburn 2742: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2743: }
2744: }
2745: }
2746: } elsif ($target eq 'edit') {
2747: $result.=&Apache::edit::tag_start($target,$token);
2748: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2749: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2750: ' '.
2751: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2752: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2753: } elsif ($target eq 'modified') {
2754: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2755: $safeeval,'id','display');
1.159 albertel 2756: if ($constructtag) {
1.225 albertel 2757: #limiting ids to only letters numbers, and space
1.224 www 2758: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2759: $result = &Apache::edit::rebuild_tag($token);
2760: }
2761: }
2762: return $result;
1.11 albertel 2763: }
2764:
2765: sub end_part {
1.159 albertel 2766: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2767: &Apache::lonxml::debug("in end_part $target ");
2768: my $status=$Apache::inputtags::status['-1'];
2769: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2770: my $in_order_show=&ordered_show_check();
1.321 albertel 2771: my $result;
2772: if (!$Apache::lonxml::metamode) {
2773: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2774: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2775: }
1.312 albertel 2776: if ($target eq 'grade') {
1.249 albertel 2777: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2778: !$hidden && $in_order_show) {
1.311 foxr 2779: $result.=&Apache::inputtags::grade;
1.249 albertel 2780: } else {
2781: # move any submission data to .hidden
2782: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2783: }
1.283 albertel 2784: } elsif (($target eq 'web' || $target eq 'tex') &&
2785: !$hidden && $in_order_show) {
1.159 albertel 2786: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2787: $target);
1.490 raeburn 2788: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2789: ($env{'form.grade_imsexport'})) {
1.212 albertel 2790: $gradestatus='';
2791: }
1.311 foxr 2792: $result.=$gradestatus;
1.265 sakharuk 2793: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2794: } elsif ($target eq 'edit') {
1.311 foxr 2795: $result.=&Apache::edit::end_table();
1.322 albertel 2796: } elsif ($target eq 'modified') {
2797: $result .= $token->[2];
1.159 albertel 2798: }
2799: pop @Apache::inputtags::status;
2800: $Apache::inputtags::part='';
1.512.2.10 raeburn 2801: $Apache::inputtags::leniency='';
1.295 albertel 2802: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2803: return $result;
1.11 albertel 2804: }
1.1 albertel 2805:
1.25 albertel 2806: sub start_preduedate {
1.326 albertel 2807: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2808: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2809: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2810: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2811: if (!$Apache::lonhomework::scantronmode &&
2812: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2813: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2814: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2815: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2816: }
1.24 albertel 2817: }
1.159 albertel 2818: return '';
1.24 albertel 2819: }
2820:
1.25 albertel 2821: sub end_preduedate {
1.159 albertel 2822: return '';
1.24 albertel 2823: }
2824:
1.369 foxr 2825: # In all the modes where <postanswerdate> text is
2826: # displayable, all we do is eat up the text between the start/stop
2827: # tags if the conditions are not right to display it.
1.25 albertel 2828: sub start_postanswerdate {
1.326 albertel 2829: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2830: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2831: &Apache::lonnet::allowed('pav',
2832: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2833: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2834: $target eq 'tex' ) {
1.300 albertel 2835: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2836: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2837: (($target eq 'tex') && !$pav)) {
1.326 albertel 2838: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2839: }
2840: }
2841: return '';
1.24 albertel 2842: }
2843:
1.25 albertel 2844: sub end_postanswerdate {
1.159 albertel 2845: return '';
1.24 albertel 2846: }
2847:
1.25 albertel 2848: sub start_notsolved {
1.326 albertel 2849: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2850: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2851: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2852: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2853: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2854: if ($gradestatus =~ /^correct/ &&
2855: &Apache::response::show_answer()) {
1.159 albertel 2856: &Apache::lonxml::debug("skipping");
1.326 albertel 2857: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2858: }
1.24 albertel 2859: }
1.159 albertel 2860: return '';
1.24 albertel 2861: }
2862:
1.25 albertel 2863: sub end_notsolved {
1.159 albertel 2864: return '';
1.24 albertel 2865: }
2866:
2867: sub start_solved {
1.326 albertel 2868: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2869: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2870: $target eq 'tex') {
2871: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2872: if ($gradestatus !~ /^correct/ ||
2873: !&Apache::response::show_answer()) {
1.326 albertel 2874: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2875: }
1.24 albertel 2876: }
1.159 albertel 2877: return '';
1.24 albertel 2878: }
2879:
2880: sub end_solved {
1.248 albertel 2881: return '';
2882: }
2883:
2884: sub start_problemtype {
1.326 albertel 2885: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2886: my $result;
1.339 albertel 2887: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2888: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2889: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2890: if (!defined($mode)) { $mode='show'; }
2891: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2892: my $found=0;
2893: foreach my $type (split(',',$for)) {
2894: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2895: }
2896: if ($mode eq 'show' && !$found) {
1.326 albertel 2897: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2898: }
2899: if ($mode eq 'hide' && $found) {
1.326 albertel 2900: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2901: }
2902: } elsif ($target eq 'edit') {
2903: $result .=&Apache::edit::tag_start($target,$token);
2904: $result.=&Apache::edit::select_arg('Mode:','mode',
2905: [['show','Show'],
2906: ['hide','Hide']]
2907: ,$token);
2908: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.512.2.2 raeburn 2909: [ ['exam','Exam/Quiz Problem'],
1.248 albertel 2910: ['survey','Survey'],
1.465 raeburn 2911: ['surveycred','Survey (with credit)'],
2912: ['anonsurvey','Anonymous Survey'],
2913: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2914: ['problem','Homework Problem'],
1.479 raeburn 2915: ['practice','Practice Problem'],
2916: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2917: ,$token);
2918: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2919: } elsif ($target eq 'modified') {
2920: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2921: $safeeval,'mode','for');
2922: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2923: }
2924: return $result;
2925: }
2926:
2927: sub end_problemtype {
1.159 albertel 2928: return '';
1.24 albertel 2929: }
1.34 albertel 2930:
2931: sub start_startouttext {
1.159 albertel 2932: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2933: my @result=(''.'');
2934: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2935:
2936: my $nesting =
2937: &Apache::lonxml::set_state('outtext',
2938: &Apache::lonxml::get_state('outtext')+1);
2939: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2940: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2941: }
1.159 albertel 2942: return (@result);
1.34 albertel 2943: }
1.159 albertel 2944:
1.34 albertel 2945: sub end_startouttext {
1.326 albertel 2946: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2947: my $result='';
2948: my $text='';
2949: if ($target eq 'edit') {
1.424 foxr 2950: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2951: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.512.2.11 raeburn 2952: $result.=&Apache::edit::start_table($token)."<tr><td>".&Apache::loncommon::insert_folding_button()
2953: ." ".&mt('Text Block')."</td>"
1.438 bisitz 2954: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2955: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 2956: .'</span></td>'
1.512.2.12 raeburn 2957: .'<td><span id="math_'.$areaid.'">';
2958: if ($env{'environment.nocodemirror'}) {
2959: $result.=&Apache::lonhtmlcommon::dragmath_button($areaid,1);
2960: } else {
2961: $result.=' ';
2962: }
2963: $result.='</span></td>'
1.474 raeburn 2964: .'<td>'
2965: .&Apache::edit::insertlist($target,$token)
2966: .'</td>'
1.512.2.5 raeburn 2967: .'<td class="LC_edit_problem_latexhelper">' .
1.474 raeburn 2968: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2969: &Apache::edit::end_row().
1.362 albertel 2970: &Apache::edit::start_spanning_row()."\n".
1.255 www 2971: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2972: }
2973: if ($target eq 'modified') {
1.219 albertel 2974: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2975: }
2976: if ($target eq 'tex') {
2977: $result .= '\noindent ';
2978: }
2979: return $result;
1.34 albertel 2980: }
1.159 albertel 2981:
1.34 albertel 2982: sub start_endouttext {
1.159 albertel 2983: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2984: my $result='';
2985: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2986: if ($target eq "modified") {
2987: $result='<endouttext />'.
1.377 albertel 2988: &Apache::edit::handle_insertafter('startouttext');
2989: }
1.404 albertel 2990:
2991: my $nesting =
2992: &Apache::lonxml::set_state('outtext',
2993: &Apache::lonxml::get_state('outtext')-1);
2994: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2995: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2996: &Apache::lonxml::set_state('outtext', 0);
2997: }
1.159 albertel 2998: return $result;
1.34 albertel 2999: }
1.159 albertel 3000:
1.34 albertel 3001: sub end_endouttext {
1.159 albertel 3002: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3003: my @result=('','');
3004: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
3005: return (@result);
1.34 albertel 3006: }
1.159 albertel 3007:
1.45 albertel 3008: sub delete_startouttext {
1.326 albertel 3009: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
3010: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 3011: my $text=$$parser['-1']->get_text("/endouttext");
3012: my $ntoken=$$parser['-1']->get_token();
3013: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
3014: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
3015: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
3016: # they did the last time round
3017: &Apache::lonxml::increasedepth($ntoken);
3018: &Apache::lonxml::decreasedepth($ntoken);
3019: return 1;
1.193 www 3020: }
3021:
3022: sub start_simpleeditbutton {
3023: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3024: my $result='';
1.284 albertel 3025: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 3026: ($target eq 'web') &&
1.330 albertel 3027: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 3028: my $url=$env{'request.noversionuri'};
1.193 www 3029: $url=~s/\?.*$//;
1.367 albertel 3030: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 3031: # Warning makes more sense and is more important on edit screen
1.442 bisitz 3032: # $result='<p class="LC_warning">'
3033: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
3034: # .&Apache::loncommon::help_open_topic('Caching')
3035: # .'</p>';
1.486 www 3036: $result.=&Apache::loncommon::head_subbox(
3037: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 3038: .&Apache::lonhtmlcommon::add_item_funclist(
3039: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
3040: .&mt('Edit').'</a>')
1.486 www 3041: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 3042:
1.193 www 3043: }
3044: return $result;
3045: }
3046:
3047: sub end_simpleeditbutton {
3048: return '';
1.45 albertel 3049: }
1.34 albertel 3050:
1.428 raeburn 3051: sub practice_problem_header {
3052: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
3053: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
3054: '</span>';
3055: }
3056:
1.479 raeburn 3057: sub randomizetry_problem_header {
3058: my ($problemstatus,$reqtries) = @_;
3059: my ($header,$text);
3060: if ($reqtries > 1) {
3061: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
3062: if (($problemstatus eq 'no') ||
3063: ($problemstatus eq 'no_feedback_ever')) {
3064: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3065: } else {
3066: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3067: }
3068: } else {
3069: $header = &mt('New Problem Variation Each Try');
3070: if (($problemstatus eq 'no') ||
3071: ($problemstatus eq 'no_feedback_ever')) {
3072: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
3073:
3074: } else {
3075: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
3076: }
3077: }
3078: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
3079: '<span class="LC_info">'.$text.'</span><hr />';
3080: }
3081:
3082: sub randomizetry_part_header {
3083: my ($problemstatus,$reqtries,$num) = @_;
3084: my ($header,$text);
3085: if ($reqtries eq 'none') {
3086: $header = &mt('No Question Variation');
3087: $text = &mt('For this question there will no new variation after a try.');
3088: } elsif ($reqtries > 1) {
3089: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
3090: if (($problemstatus eq 'no') ||
3091: ($problemstatus eq 'no_feedback_ever')) {
3092: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3093: } else {
3094: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3095: }
3096: } else {
3097: $header = &mt('New Question Variation For Each Try');
3098: if (($problemstatus eq 'no') ||
3099: ($problemstatus eq 'no_feedback_ever')) {
3100: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
3101: } else {
3102: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
3103: }
3104: }
3105: my $output;
3106: if ($num > 1) {
3107: $output .= '<hr />';
3108: }
3109: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
3110: '<span class="LC_info">'.$text.'</span><br /><br />';
3111: return $output;
3112: }
3113:
1.1 albertel 3114: 1;
3115: __END__
1.435 jms 3116:
3117: =pod
3118:
3119: =back
3120:
3121: =cut
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