Annotation of loncom/homework/structuretags.pm, revision 1.512.2.22
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.512.2.22! raeburn 4: # $Id: structuretags.pm,v 1.512.2.21 2019/11/04 20:50:57 raeburn Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.435 jms 30: =pod
31:
32: =head1 NAME
33:
34: Apache::structuretags
35:
36: =head1 SYNOPSIS
37:
38:
39: This is part of the LearningOnline Network with CAPA project
40: described at http://www.lon-capa.org.
41:
42:
43: =head1 NOTABLE SUBROUTINES
44:
45: =over
46:
47: =item
48:
49: =back
50:
51: =cut
52:
1.133 sakharuk 53:
1.1 albertel 54: package Apache::structuretags;
55:
56: use strict;
57: use Apache::lonnet;
1.101 sakharuk 58: use Apache::File();
1.147 www 59: use Apache::lonmenu;
1.210 albertel 60: use Apache::lonlocal;
1.231 sakharuk 61: use Apache::lonxml;
1.434 foxr 62: use Apache::londefdef;
1.338 albertel 63: use Apache::lonenc();
1.500 foxr 64: use Apache::loncommon();
1.267 albertel 65: use Time::HiRes qw( gettimeofday tv_interval );
1.356 www 66: use lib '/home/httpd/lib/perl/';
67: use LONCAPA;
68:
1.78 harris41 69: BEGIN {
1.469 www 70: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','translated','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startpartmarker','startouttext','endpartmarker','endouttext','simpleeditbutton','definetag'));
1.10 albertel 71: }
72:
1.500 foxr 73:
74: #---------------------------------------------------------------------------------
75: #
76: # This section of code deals with hyphenation management.
77: # We must do three things:
78: # - keep track fo the desired languages to alter the header.
79: # - provide hyphenation selection as needed by each language that appears in the
80: # text.
81: # - Provide the header text needed to make available the desired hyphenations.
82: #
83: #
84:
85: # Hash whose keys are the languages encountered in the document/resource.
86: #
87:
88: my %languages_required;
89: ##
90: # Given a language selection as input returns a chunk of LaTeX that
91: # selects the required hyphenator.
92: #
93: # @param language - the language being selected.
94: # @return string
95: # @retval The LaTeX needed to select the hyphenation appropriate to the language.
96: #
97: sub select_hyphenation {
98: my $language = shift;
99:
100: $language = &Apache::loncommon::latexlanguage($language); # Translate -> latex language.
101:
102: # If there is no latex language there's not much we can do:
103:
104: if ($language) {
105: &require_language($language);
106: my $babel_hyphenation = "\\selectlanguage{$language}";
107:
108: return $babel_hyphenation;
109: } else {
110: return '';
111: }
112: }
113: ##
114: # Selects hyphenation based on the current problem metadata.
115: # This requires that
116: # - There is a language metadata item set for the problem.
117: # - The language has a latex/babel hyphenation.
118: #
119: # @note: Uses &Apache::lonxml::request to locate the Uri associated with
120: # this problem.
121: # @return string (possibly empty).
122: # @retval If not empty an appropriate \selectlanguage{} directive.
123: #
124: sub select_metadata_hyphenation {
125: my $uri = $Apache::lonxml::request->uri;
126: my $language = &Apache::lonnet::metadata($uri, 'language');
127: my $latex_language = &Apache::loncommon::latexhyphenation($language);
128: if ($latex_language) {
129: return '\selectlanguage{'.$latex_language."}\n";
130: }
131: return ''; # no latex hyphenation or no lang metadata.
132: }
133:
134:
135: ##
136: # Clears the set of languages required by the document being rendered.
137: #
138: sub clear_required_languages {
139: %languages_required = ();
140: }
141: ##
142: # Allows an external client of this module to register a need for a language:
143: #
144: # @param LaTeX language required:
145: #
146: sub require_language {
147: my $language = shift;
148: $languages_required{$language} = 1;
149: }
150:
151: ##
152: # Provides the header for babel that indicates the languages
153: # the document requires.
154: # @return string
155: # @retval \usepackage[lang1,lang2...]{babel}
156: # @retval '' if there are no languages_required.
157: sub languages_header {
158: my $header ='';
159: my @languages = (keys(%languages_required));
160:
161: # Only generate the header if there are languages:
162:
163: if (scalar @languages) {
164: my $language_list = join(',', (@languages));
165: $header = '\usepackage['.$language_list."]{babel}\n";
166: }
167: return $header;
168: }
169:
170: #----------------------------------------------------------------------------------
171:
1.10 albertel 172: sub start_web {
1.326 albertel 173: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 174: if ($target ne 'edit' && $target ne 'modified') {
175: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
176: if ($target eq 'web' || $target eq 'webgrade') {
177: return $bodytext;
178: }
179: } elsif ($target eq "edit" ) {
180: my $bodytext =
181: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
182: my $result = &Apache::edit::tag_start($target,$token);
183: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
184: return $result;
185: } elsif ( $target eq "modified" ) {
186: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 187: }
188: return '';
1.10 albertel 189: }
190:
191: sub end_web {
1.44 ng 192: return '';
1.10 albertel 193: }
194:
195: sub start_tex {
1.326 albertel 196: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 197: my $result='';
1.383 albertel 198: if ($target ne 'edit' && $target ne 'modified') {
199: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
200: if ($target eq 'tex') {
1.434 foxr 201:
202: # If inside a table, occurrences of \\ must be removed;
203: # else the table blows up.
204:
205: if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
206: $bodytext =~ s/\\\\//g;
207: }
1.432 foxr 208: return $bodytext.'{}';
1.383 albertel 209: }
210: } elsif ($target eq "edit" ) {
211: my $bodytext =
212: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
213: my $result = &Apache::edit::tag_start($target,$token);
214: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
215: return $result;
216: } elsif ( $target eq "modified" ) {
217: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 218: }
1.198 sakharuk 219: return $result;;
1.10 albertel 220: }
221:
222: sub end_tex {
1.44 ng 223: return '';
1.9 albertel 224: }
225:
1.400 albertel 226: sub homework_js {
1.512.2.9 raeburn 227: my ($postsubmit,$timeout);
228: if (($env{'request.course.id'}) && ($env{'request.state'} ne 'construct')) {
229: my $crstype;
230: if (&Apache::loncommon::course_type() eq 'Community') {
231: $crstype = 'community';
232: } else {
233: if ($env{'course.'.$env{'request.course.id'}.'.internal.coursecode'}) {
234: $crstype = 'official';
235: } elsif ($env{'course.'.$env{'request.course.id'}.'.internal.textbook'}) {
236: $crstype = 'textbook';
237: } else {
238: $crstype = 'unofficial';
239: }
240: }
241: $postsubmit = $env{'course.'.$env{'request.course.id'}.'.internal.postsubmit'};
242: if ($postsubmit eq '') {
243: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
244: $postsubmit = $domdefs{'postsubmit'};
245: unless ($postsubmit eq 'off') {
246: $timeout = $domdefs{$crstype.'postsubtimeout'};
247: }
248: } elsif ($postsubmit eq '0') {
249: $postsubmit = 'off';
250: } elsif ($postsubmit eq '1') {
251: $postsubmit = 'on';
252: $timeout = $env{'course.'.$env{'request.course.id'}.'.internal.postsubtimeout'};
253: if ($timeout eq '') {
254: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
255: $timeout = $domdefs{$crstype.'postsubtimeout'};
256: }
257: }
258: if ($timeout eq '') {
259: $timeout = 60;
260: }
261: } else {
262: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'request.role.domain'});
263: $postsubmit = $domdefs{'postsubmit'};
264: unless ($postsubmit eq 'off') {
265: $timeout = 60;
266: }
267: }
268: my $jstimeout = 0;
269: if ($timeout) {
270: $jstimeout = 1000 * $timeout;
271: }
1.400 albertel 272: return &Apache::loncommon::resize_textarea_js().
1.512.2.11 raeburn 273: &Apache::loncommon::colorfuleditor_js().
1.416 raeburn 274: &setmode_javascript().
1.512.2.9 raeburn 275: <<"JS";
1.400 albertel 276: <script type="text/javascript">
1.483 raeburn 277: // <![CDATA[
1.494 raeburn 278: function setSubmittedPart (part,prefix) {
279: if (typeof(prefix) == 'undefined') {
280: this.document.lonhomework.submitted.value="part_"+part;
281: } else {
282: for (var i=0;i<this.document.lonhomework.elements.length;i++) {
283: if (this.document.lonhomework.elements[i].name == prefix+'submitted') {
284: this.document.lonhomework.elements[i].value="part_"+part;
285: }
286: }
287: }
1.400 albertel 288: }
289:
1.512.2.9 raeburn 290: function disableAutoComplete (id) {
291: var field = document.getElementById(id);
292: if (field != null && field != undefined){
293: if ('autocomplete' in field) {
294: field.autocomplete = "off";
295: } else {
296: field.setAttribute("autocomplete", "off");
297: }
298: }
299: }
300:
1.400 albertel 301: function image_response_click (which, e) {
302: init_geometry();
303: if (!e) { e = window.event; } //IE
304: var input_element = document.lonhomework.elements[which];
1.401 albertel 305: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 306: var token = token_element.value;
1.401 albertel 307: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 308: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
309: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
310: var click = x+':'+y;
311: input_element.value = click;
1.485 raeburn 312: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
1.400 albertel 313: }
1.512.2.9 raeburn 314:
315: var submithandled = 0;
316: var keypresshandled = 0;
317: var postsubmit = '$postsubmit';
318:
319: \$(document).ready(function(){
320: if (postsubmit != 'off') {
321: \$(document).keypress(function(event){
322: var keycode = (event.keyCode ? event.keyCode : event.which);
323: if ((keycode == '13') && (keypresshandled == 0)) {
324: if ( \$( document.activeElement ).hasClass("LC_textline") ) {
325: keypresshandled = 1;
326: var idsArray = \$( document.activeElement ).attr("id").split(/HWVAL_/);
327: if (idsArray.length) {
328: event.preventDefault();
329: var itemsArray = idsArray[1].split(/_/);
330: var buttonId = idsArray[0]+'submit_'+itemsArray[0];
331: \$("#"+buttonId).trigger("click");
332: }
333: }
334: }
335: });
336:
337: \$(document).delegate('form :submit', 'click', function( event ) {
338: if ( \$( this ).hasClass( "LC_hwk_submit" ) ) {
339: var buttonId = this.id;
340: var timeout = $jstimeout;
341: if (submithandled == 0) {
342: submithandled = 1;
343: \$( "#msg_"+buttonId ).css({"display": "inline","background-color": "#87cefa",
344: "color": "black","padding": "2px"}) ;
1.512.2.18 raeburn 345: if (( \$(this.form).attr("id") == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
1.512.2.9 raeburn 346: if (buttonId != "all_submit") {
347: \$( ".LC_status_"+buttonId ).hide();
1.512.2.18 raeburn 348: }
349: if (( "#"+buttonId+"_pressed" ).length) {
350: \$( "#"+buttonId+"_pressed" ).val( "1" );
1.512.2.9 raeburn 351: }
352: } else {
353: \$( ".LC_status_"+buttonId ).hide();
354: }
355: \$(this.form).submit();
356: \$( ".LC_hwk_submit" ).prop( "disabled", true);
357: \$( ".LC_textline" ).prop( "readonly", "readonly");
358: event.preventDefault();
359:
360: if (timeout > 0) {
361: setTimeout(function(){
362: \$( "#msg_"+buttonId ).css({"display": "none"});
1.512.2.18 raeburn 363: if (( \$(this.form).attr("id") == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
364: if (( "#"+buttonId+"_pressed" ).length) {
365: \$( "#"+buttonId+"_pressed" ).val( "" );
1.512.2.9 raeburn 366: }
367: }
368: \$( ".LC_hwk_submit" ).prop( "disabled", false);
369: \$( ".LC_textline" ).prop( "readonly", false);
370: submithandled = 0;
371: keypresshandled = 0;
372: }, timeout);
373: }
374: return true;
375: }
376: }
377: });
378: }
379: });
380:
1.483 raeburn 381: // ]]>
1.400 albertel 382: </script>
383: JS
384: }
385:
1.416 raeburn 386: sub setmode_javascript {
387: return <<"ENDSCRIPT";
388: <script type="text/javascript">
1.485 raeburn 389: // <![CDATA[
1.416 raeburn 390: function setmode(form,probmode) {
1.512.2.13 raeburn 391: var initial = form.problemmode.value;
1.416 raeburn 392: form.problemmode.value = probmode;
393: form.submit();
1.512.2.13 raeburn 394: form.problemmode.value = initial;
1.416 raeburn 395: }
1.485 raeburn 396: // ]]>
1.416 raeburn 397: </script>
398: ENDSCRIPT
399: }
400:
1.48 albertel 401: sub page_start {
1.345 albertel 402: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
403: $extra_head)=@_;
1.159 albertel 404: my %found;
1.207 albertel 405: foreach my $taginside (@$tagstack) {
1.159 albertel 406: foreach my $taglookedfor ('html','body','form') {
407: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
408: }
409: }
410:
1.343 albertel 411: if ($target eq 'tex') {
412: return
413: &Apache::londefdef::start_html($target,$token,$tagstack,
414: $parstack,$parser,$safeeval);
415: }
416:
1.474 raeburn 417: $extra_head .= &homework_js().
418: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
419: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
1.512.2.12 raeburn 420: my %textarea_args;
421: if (($env{'request.state'} ne 'construct') ||
422: ($env{'environment.nocodemirror'})) {
423: %textarea_args = (
1.474 raeburn 424: dragmath => 'math',
425: );
1.512.2.12 raeburn 426: }
1.474 raeburn 427: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 428: }
1.478 raeburn 429: my $is_task = ($env{'request.uri'} =~ /\.task$/);
1.512.2.9 raeburn 430: my ($needs_upload,$partlist);
1.495 raeburn 431: my ($symb)= &Apache::lonnet::whichuser();
432: my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
1.478 raeburn 433: if ($is_task) {
1.495 raeburn 434: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
1.493 raeburn 435: } else {
436: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.uploadedfiletypes") ne '') {
1.495 raeburn 437: unless ($env{'request.state'} eq 'construct') {
438: my $navmap = Apache::lonnavmaps::navmap->new();
439: if (ref($navmap)) {
440: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 441: my $is_page;
442: if (ref($mapres)) {
443: $is_page = $mapres->is_page();
444: }
445: unless ($is_page) {
1.495 raeburn 446: $needs_upload = 1;
447: }
1.512.2.9 raeburn 448: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
449: my $res = $navmap->getBySymb($symb);
450: if (ref($res)) {
451: $partlist = $res->parts();
452: }
453: }
1.495 raeburn 454: }
455: }
1.493 raeburn 456: } else {
457: unless ($env{'request.state'} eq 'construct') {
458: my $navmap = Apache::lonnavmaps::navmap->new();
459: if (ref($navmap)) {
1.495 raeburn 460: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 461: my $is_page;
462: if (ref($mapres)) {
463: $is_page = $mapres->is_page();
464: }
1.512.2.9 raeburn 465: if ($is_page) {
466: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
467: my $res = $navmap->getBySymb($symb);
468: if (ref($res)) {
469: $partlist = $res->parts();
470: }
471: }
472: } else {
1.495 raeburn 473: my $res = $navmap->getBySymb($symb);
474: if (ref($res)) {
1.512.2.9 raeburn 475: $partlist = $res->parts();
1.495 raeburn 476: if (ref($partlist) eq 'ARRAY') {
477: foreach my $part (@{$partlist}) {
478: my @types = $res->responseType($part);
479: my @ids = $res->responseIds($part);
480: for (my $i=0; $i < scalar(@ids); $i++) {
481: if ($types[$i] eq 'essay') {
482: my $partid = $part.'_'.$ids[$i];
483: if (&Apache::lonnet::EXT("resource.$partid.uploadedfiletypes") ne '') {
484: $needs_upload = 1;
485: last;
486: }
1.493 raeburn 487: }
488: }
489: }
1.495 raeburn 490: }
491: }
1.493 raeburn 492: }
493: }
494: }
495: }
1.495 raeburn 496: if ($needs_upload) {
1.512.2.17 raeburn 497: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js().
498: '<script type="text/javascript" '.
499: 'src="/res/adm/includes/file_upload.js"></script>';
1.495 raeburn 500: }
1.478 raeburn 501: }
1.425 raeburn 502:
1.344 albertel 503: my %body_args;
504: if (defined($found{'html'})) {
505: $body_args{'skip_phases'}{'head'}=1;
506: } else {
1.343 albertel 507:
1.345 albertel 508: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 509:
1.379 albertel 510: $extra_head .= &Apache::londefdef::generate_css_links();
511:
1.384 albertel 512: if ($env{'request.state'} eq 'construct') {
1.343 albertel 513: $extra_head.=&Apache::edit::js_change_detection().
514: "<script type=\"text/javascript\">\n".
515: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
516: &Apache::loncommon::browser_and_searcher_javascript().
517: "\n</script>\n";
1.512.2.9 raeburn 518: if ($target eq 'edit') {
519: $extra_head .= &Apache::edit::js_update_linknum();
520: }
1.343 albertel 521: }
1.159 albertel 522: }
1.343 albertel 523:
1.446 bisitz 524: my $pageheader = '';
1.344 albertel 525: if (defined($found{'body'})) {
526: $body_args{'skip_phases'}{'body'}=1;
527: } elsif (!defined($found{'body'})
528: && $env{'request.state'} eq 'construct') {
1.343 albertel 529: if ($target eq 'web' || $target eq 'edit') {
1.512.2.3 raeburn 530: # Breadcrumbs for Authoring Space
1.450 bisitz 531: &Apache::lonhtmlcommon::clear_breadcrumbs();
532: &Apache::lonhtmlcommon::add_breadcrumb({
1.512.2.3 raeburn 533: 'text' => 'Authoring Space',
1.497 raeburn 534: 'href' => &Apache::loncommon::authorspace($env{'request.uri'}),
1.450 bisitz 535: });
1.460 droeschl 536: # breadcrumbs (and tools) will be created
537: # in start_page->bodytag->innerregister
538:
1.450 bisitz 539: # FIXME Where are we?
540: # &Apache::lonhtmlcommon::add_breadcrumb({
541: # 'text' => 'Problem Editing', # 'Problem Testing'
542: # 'href' => '',
543: # });
1.460 droeschl 544: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 545: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 546: }
1.272 albertel 547: } elsif (!defined($found{'body'})) {
1.343 albertel 548: my %add_entries;
1.159 albertel 549: my $background=&Apache::lonxml::get_param('background',$parstack,
550: $safeeval);
1.343 albertel 551: if ($background ne '' ) {
552: $add_entries{'background'} = $background;
553: }
1.344 albertel 554:
1.290 albertel 555: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
556: $safeeval);
1.446 bisitz 557: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 558:
1.446 bisitz 559: $body_args{'bgcolor'} = $bgcolor;
560: # $body_args{'no_title'} = 1;
561: $body_args{'force_register'} = 1;
562: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 563: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 564: $body_args{'only_body'} = 1;
1.512.2.7 raeburn 565: } elsif ($target eq 'web') {
566: $body_args{'print_suppress'} = 1;
1.446 bisitz 567: }
1.344 albertel 568: }
1.365 albertel 569: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 570: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
571: \%body_args);
1.446 bisitz 572: $page_start .= $pageheader;
1.462 raeburn 573: if (!defined($found{'body'})
574: && $env{'request.state'} ne 'construct'
575: && ($target eq 'web' || $target eq 'webgrade')) {
576:
577: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
578: if ($symb eq '' && !$publicuser) {
579: $page_start .= '<p class="LC_info">'
580: .&mt('Browsing resource, all submissions are temporary.')
581: .'</p>';
1.457 bisitz 582: }
1.344 albertel 583: }
584:
1.409 albertel 585: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 586: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 587: }
588: my $form_tag_start;
589: if (!defined($found{'form'})) {
1.337 albertel 590: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 591: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 592: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 593: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 594: $form_tag_start.=$uri.'" ';
595: if ($target eq 'edit') {
596: $form_tag_start.=&Apache::edit::form_change_detection();
597: }
1.493 raeburn 598: my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
599: my ($path,$multiresp) =
600: &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
1.495 raeburn 601: if (($is_task) || ($needs_upload)) {
602: $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
1.478 raeburn 603: }
1.368 albertel 604: $form_tag_start.='>'."\n";
1.355 albertel 605:
606: if ($symb =~ /\S/) {
607: $symb=
608: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
609: $form_tag_start.=
1.368 albertel 610: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 611: }
1.159 albertel 612: }
1.512.2.9 raeburn 613: return ($page_start,$form_tag_start,$partlist);
1.105 albertel 614: }
615:
1.141 matthew 616: #use Time::HiRes();
1.105 albertel 617: sub get_resource_name {
1.159 albertel 618: my ($parstack,$safeeval)=@_;
1.388 foxr 619: my $name;
1.204 albertel 620: if (defined($Apache::lonhomework::name)) {
1.388 foxr 621: $name = $Apache::lonhomework::name;
622: } else {
623: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 624: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 625: if ($name eq '') {
626: $name=&Apache::lonnet::EXT('resource.title');
627: if ($name eq 'con_lost') { $name = ''; }
628: }
629: if ($name!~/\S+/) {
630: $name=$env{'request.uri'};
631: $name=~s-.*/([^/]+)$-$1-;
632: }
633: # The name has had html tags escaped:
634:
635: $name=~s/</</gs;
636: $name=~s/>/>/gs;
637:
638: $Apache::lonhomework::name=$name;
1.204 albertel 639: }
1.159 albertel 640: return $name;
1.105 albertel 641: }
642:
643: sub setup_rndseed {
1.512.2.9 raeburn 644: my ($safeeval,$target,$probpartlist)=@_;
1.367 albertel 645: my ($symb)=&Apache::lonnet::whichuser();
1.512.2.19 raeburn 646: my ($questiontype,$set_safespace,$rndseed,$numtries,$reqtries);
1.479 raeburn 647: if ($target eq 'analyze') {
648: $questiontype = $env{'form.grade_questiontype'};
649: }
650: unless (defined($questiontype)) {
651: $questiontype = $Apache::lonhomework::type;
652: }
1.512.2.19 raeburn 653: if ($Apache::lonhomework::type eq 'randomizetry') {
654: my $partfortries = $Apache::inputtags::part;
1.512.2.22! raeburn 655: #
! 656: # Where question type is "randomizetry" for a problem containing
! 657: # a single part (and unless type is explicitly set to not be
! 658: # "randomizetry" for that part), the number of tries used to
! 659: # determine randomization will be for that part, and randomization
! 660: # from calls to &random() in a perl script block before the part tag,
! 661: # will change based on the number of tries, and value of the
! 662: # "randomizeontries" parameter in effect for the single part.
! 663: #
1.512.2.19 raeburn 664: if (ref($probpartlist) eq 'ARRAY') {
1.512.2.22! raeburn 665: if ((@{$probpartlist} == 1) && ($probpartlist->[0] ne $partfortries)) {
! 666: if (&Apache::lonnet::EXT('resource.'.$probpartlist->[0].'.type') eq 'randomizetry') {
1.512.2.21 raeburn 667: $partfortries = $probpartlist->[0];
668: } else {
669: $partfortries = '';
670: }
1.512.2.19 raeburn 671: }
672: }
1.512.2.21 raeburn 673: if ($partfortries ne '') {
674: $numtries = $Apache::lonhomework::history{"resource.$partfortries.tries"};
675: $reqtries = &Apache::lonnet::EXT("resource.$partfortries.randomizeontries");
676: }
1.512.2.19 raeburn 677: }
1.512.2.14 raeburn 678: if (($env{'request.state'} eq "construct")
679: || ($symb eq '')
680: || ($Apache::lonhomework::type eq 'practice')
681: || ($Apache::lonhomework::history{'resource.CODE'})
682: || (($env{'form.code_for_randomlist'}) && ($target eq 'analyze'))) {
1.316 www 683: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 684: ['rndseed']);
1.284 albertel 685: $rndseed=$env{'form.rndseed'};
1.159 albertel 686: if (!$rndseed) {
1.162 albertel 687: $rndseed=$Apache::lonhomework::history{'rndseed'};
688: if (!$rndseed) {
689: $rndseed=time;
690: }
1.512.2.14 raeburn 691: unless ($env{'form.code_for_randomlist'}) {
692: $env{'form.rndseed'}=$rndseed;
693: }
1.162 albertel 694: }
1.512.2.20 raeburn 695: if ((($env{'request.state'} eq "construct") || ($symb eq '')) &&
1.479 raeburn 696: ($Apache::lonhomework::type eq 'randomizetry')) {
1.512.2.19 raeburn 697: if ($numtries) {
698: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
699: my $inc = int($numtries/$reqtries);
700: $rndseed += $inc;
701: } else {
702: $rndseed += $numtries;
703: }
1.479 raeburn 704: }
1.480 raeburn 705: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 706: }
1.374 albertel 707: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
708: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 709: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 710: srand(time);
711: $rndseed=int(rand(2100000000));
1.284 albertel 712: $env{'form.rndseed'}=$rndseed;
713: delete($env{'form.resetdata'});
714: delete($env{'form.newrandomization'});
1.159 albertel 715: }
1.488 www 716: $rndseed=~s/\,/\:/g;
717: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 718: if (defined($rndseed)) {
719: my ($c1,$c2)=split(/\:/,$rndseed);
720: unless ($c2) { $c2=0; }
721: unless (($c1==int($c1)) && ($c2==int($c2))) {
722: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
723: }
1.187 albertel 724: }
1.512.2.14 raeburn 725: if (($env{'form.code_for_randomlist'}) && ($target eq 'analyze')) {
726: $env{'form.CODE'} = $env{'form.code_for_randomlist'};
727: $rndseed=&Apache::lonnet::rndseed();
728: undef($env{'form.CODE'});
729: } elsif ($Apache::lonhomework::history{'resource.CODE'}) {
1.247 albertel 730: $rndseed=&Apache::lonnet::rndseed();
731: }
1.479 raeburn 732: $set_safespace = 1;
733: } elsif ($questiontype eq 'randomizetry') {
734: if ($target eq 'analyze') {
735: if (defined($env{'form.grade_rndseed'})) {
736: $rndseed = $env{'form.grade_rndseed'};
737: }
738: }
739: unless (($target eq 'analyze') && (defined($rndseed))) {
740: $rndseed=&Apache::lonnet::rndseed();
1.512.2.19 raeburn 741: my $curr_try = $numtries;
1.479 raeburn 742: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
743: $curr_try ++;
744: }
745: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
746: $rndseed = $1;
747: }
748: if ($curr_try) {
749: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
750: my $inc = int(($curr_try-1)/$reqtries);
751: $rndseed += $inc;
752: } else {
753: $rndseed += $curr_try;
754: }
755: }
756: }
757: $set_safespace = 1;
1.512.2.9 raeburn 758: if ($target eq 'grade') {
759: $Apache::lonhomework::rawrndseed = $rndseed;
760: }
1.479 raeburn 761: }
762: if ($set_safespace) {
763: if ($safeeval) {
764: &Apache::lonxml::debug("Setting rndseed to $rndseed");
765: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
766: }
767: }
768: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
769: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 770: }
771: return $rndseed;
1.105 albertel 772: }
773:
1.268 albertel 774: sub remember_problem_state {
775: return '
1.284 albertel 776: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
777: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
778: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 779: }
780:
1.487 www 781: sub problem_edit_action_button {
782: my ($name,$action,$accesskey,$text,$flag)=@_;
783: my $actionscript="setmode(this.form,'$action')";
784: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
785: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
786: }
787:
1.423 www 788: sub problem_edit_buttons {
1.487 www 789: my ($mode)=@_;
1.512.2.11 raeburn 790: # Buttons that save
791: my $result = '<div style="float:right">';
792: if ($mode eq 'editxml') {
793: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
794: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
795: } else {
796: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
797: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
798: }
799: $result.="\n</div>\n";
1.487 www 800: # Buttons that do not save
1.512.2.11 raeburn 801: $result .= '<div>'.
1.487 www 802: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
803: if ($mode eq 'editxml') {
804: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
805: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
1.512.2.11 raeburn 806: if ($env{'environment.nocodemirror'}) {
807: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
808: }
1.487 www 809: } else {
810: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
811: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
812: }
813: $result.="\n</div>";
814: return $result;
1.423 www 815: }
816:
817: sub problem_edit_header {
1.512.2.11 raeburn 818: my ($mode)=@_;
819: my $return = '<input type="hidden" name="submitted" value="edit" />'.
1.487 www 820: &remember_problem_state('edit').'
1.512.2.11 raeburn 821: <div class="LC_edit_problem_header">
822: <div class="LC_edit_problem_header_title">
823: '.&mt('Problem Editing').$mode.&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
824: </div><div class="LC_edit_actionbar" id="actionbar">'.
825: '<input type="hidden" name="problemmode" value="saveedit" />'.
826: &problem_edit_buttons();
827:
828: $return .= '</div></div>' . &Apache::lonxml::message_location();
829: $return .= '<link rel="stylesheet" href="/adm/codemirror/codemirror-combined.css" />
830: <script type="text/javascript" src="/adm/codemirror/codemirror-compressed-colorful.js"></script>';
831:
832: $return .= '<script type="text/javascript" src="/adm/jQuery/addons/jquery-scrolltofixed.js"></script>
833: <script type="text/javascript">
834: // unless internet explorer
835: if (!(window.navigator.appName == "Microsoft Internet Explorer" && (document.documentMode || document.compatMode))){
836: $(document).ready(
837: function() {
838: $(\'.LC_edit_actionbar\').scrollToFixed(
839: {
840: fixed: function(){
841: //$(this).find(\'.LC_edit_actionbar\').css(\'height\', \'31px\');
842: $(this).find(\'.LC_edit_actionbar\');
843: }
844: }
845: );
846: }
847: );
848: }
849: </script>
850: <table id="LC_edit_problem_colorful" border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
851: return $return;
1.105 albertel 852: }
853:
1.512.2.11 raeburn 854:
1.105 albertel 855: sub problem_edit_footer {
1.512.2.11 raeburn 856: my $resource = $env{'request.ambiguous'};
1.412 albertel 857: return '</td></tr></table><br />
858: <div class="LC_edit_problem_footer">
1.453 bisitz 859: <hr />'.
1.423 www 860: &problem_edit_buttons().'
1.459 bisitz 861: <hr style="clear:both;" />
1.512.2.11 raeburn 862: <script type="text/javascript">
863: restoreState("'.$resource.'");
864: restoreScrollPosition("'.$resource.'");
865: </script>
1.412 albertel 866: </div>
867: '.
1.342 albertel 868: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 869: }
870:
1.235 albertel 871: sub option {
872: my ($value,$name) = @_;
873: my $result ="<option value='".$value."' ";
1.284 albertel 874: if ($env{'form.'.$name} eq $value) {
1.235 albertel 875: $result.=" selected='on' ";
876: }
877: $result.='>';
878: return $result;
879: }
880:
1.105 albertel 881: sub problem_web_to_edit_header {
1.159 albertel 882: my ($rndseed)=@_;
1.406 albertel 883: my $result .= '<div class="LC_edit_problem_header">';
884:
885: if (!$Apache::lonhomework::parsing_a_task) {
886: $result .=
887: '<div class="LC_edit_problem_header_title">'.
888: &mt('Problem Testing').
889: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
890: '</div>';
891: } else {
892: $result .=
893: '<div class="LC_edit_problem_header_title">'.
894: &mt('Task Testing').
895: '</div>';
896: }
897:
1.315 albertel 898: my $show_all_foils_text =
899: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 900: &mt('Show All Instances')
901: : &mt('Show All Foils');
1.315 albertel 902:
1.452 bisitz 903: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
904: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 905: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 906: $show_all.= ' /> '.$show_all_foils_text
907: .'</label></span>';
1.406 albertel 908:
909:
1.384 albertel 910:
1.406 albertel 911: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 912: if (!$Apache::lonhomework::parsing_a_task) {
913: $result.="
1.406 albertel 914: <div class='LC_edit_problem_header_row1'>
915: <span class=\"LC_nobreak\">
1.405 albertel 916: ".&mt("Problem Status:")."
1.235 albertel 917: <select name='problemstate'>
1.270 albertel 918: <option value=''></option>
1.235 albertel 919: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
920: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
921: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
922: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
923: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
924: </select>
1.406 albertel 925: </span>
926: <span class=\"LC_nobreak\">
1.405 albertel 927: ".&mt("Problem Type:")."
1.235 albertel 928: <select name='problemtype'>
1.270 albertel 929: <option value=''></option>
1.512.2.1 raeburn 930: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 931: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 932: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 933: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
934: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
935: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 936: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 937: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 938: </select>
1.406 albertel 939: </span>
940: $show_all
941: </div>
942: <div class='LC_edit_problem_header_row2'>
943: <span class=\"LC_nobreak\">
1.405 albertel 944: ".&mt("Feedback Mode:")."
1.235 albertel 945: <select name='problemstatus'>
946: <option value=''></option>
1.242 albertel 947: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.512.2.6 raeburn 948: ".&option('no', 'problemstatus').&mt("Don't Show Incorrect/Correct Feedback")."</option>
1.405 albertel 949: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 950: </select>
1.406 albertel 951: </span>
952: ";
953:
1.376 albertel 954: } elsif ($Apache::lonhomework::parsing_a_task) {
955: $result.="
1.406 albertel 956: <div class='LC_edit_problem_header_row1'>
957: <span class=\"LC_nobreak\">
1.405 albertel 958: ".&mt("Problem Status:")."
1.376 albertel 959: <select name='problemstate'>
960: <option value=''></option>
961: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
962: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
963: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
964: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
965: </select>
1.406 albertel 966: </span>
967: $show_all
968: ";
969: }
970: $result.='
971: <span class="LC_nobreak">
972: '.&mt('Apply style file: ').'
973: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
974: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
975: </span>
1.422 www 976: </div>
977: <div class="LC_edit_problem_header_row1">'.
978: &Apache::lonxml::renderingoptions().'
1.406 albertel 979: </div>
980: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
981: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
982: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
983: </div>
1.453 bisitz 984: <hr />
1.406 albertel 985: <div class="LC_edit_problem_header_randomize_row">
986: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
987: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 988: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 989: $rndseed.'"
990: onchange="javascript:document.lonhomework.changerandseed.click()" />';
991:
992: if (!$Apache::lonhomework::parsing_a_task) {
993: my $numtoanalyze=$env{'form.numtoanalyze'};
994: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 995: $result .= '<span class="LC_nobreak">'.
996: &mt('[_1] for [_2] versions.',
1.416 raeburn 997: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 998: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
999: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 1000: $numtoanalyze.'" size="5" />').
1001: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
1002: '</span>';
1003:
1.313 albertel 1004: }
1.406 albertel 1005:
1006: $result.='
1007: </div>
1.453 bisitz 1008: <hr />
1.447 bisitz 1009: <div>';
1.416 raeburn 1010: $result.='<input type="hidden" name="problemmode" value="view" />';
1011: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
1012: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
1013: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
1014: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 1015: $result.='
1016: </div>
1.453 bisitz 1017: <hr />
1.409 albertel 1018: '.&Apache::lonxml::message_location().'
1.406 albertel 1019: </div>';
1.159 albertel 1020: return $result;
1.48 albertel 1021: }
1022:
1.65 albertel 1023: sub initialize_storage {
1.357 albertel 1024: my ($given_symb) = @_;
1.353 albertel 1025: undef(%Apache::lonhomework::results);
1026: undef(%Apache::lonhomework::history);
1.357 albertel 1027: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1028: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 1029:
1030: # anonymous users (CODEd exams) have no data
1031: if ($name eq 'anonymous'
1032: && !defined($domain)) {
1033: return;
1034: }
1035:
1.333 albertel 1036: if ($env{'request.state'} eq 'construct'
1037: || $symb eq ''
1038: || $Apache::lonhomework::type eq 'practice') {
1039:
1040: my $namespace = $symb || $env{'request.uri'};
1041: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 1042: ($env{'form.resetdata'} eq &mt('New Problem Variation')
1043: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 1044: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1045: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
1046: &Apache::lonxml::debug("Attempt reset");
1047: }
1.159 albertel 1048: %Apache::lonhomework::history=
1.333 albertel 1049: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.512.2.9 raeburn 1050: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1051: &Apache::lonxml::debug("Return message of $temp");
1052: } else {
1053: %Apache::lonhomework::history=
1054: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1055: }
1.353 albertel 1056:
1.159 albertel 1057: #ignore error conditions
1.512.2.9 raeburn 1058: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1059: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 1060: }
1061:
1.435 jms 1062: =pod
1063:
1064: =item finalize_storage()
1065:
1.512.2.9 raeburn 1066: Stores away the result hash to a student's environment;
1067: checks form.grade_ for specific values, otherwise stores
1068: to the running user's environment.
1069:
1070: &check_correctness_changes() is called in two circumstances
1071: in which the results hash is to be stored permanently, for
1072: grading triggered by a student's submission, where feedback on
1073: correctness is to be provided to the student.
1074:
1075: 1. Immediately prior to storing the results hash
1076:
1077: To handle the case where a student's submission (and award) were
1078: stored after history was retrieved in &initialize_storage(), e.g.,
1079: if a student submitted answers in quick succession (e.g., from
1080: multiple tabs). &Apache::inputtags::hidealldata() is called for
1081: any parts with out-of-order storage (i.e., correct then incorrect,
1082: where awarded >= 1 when correct).
1083:
1084: 2. Immediately after storing the results hash
1085:
1086: To handle the case where lond on the student's homeserver returns
1087: delay:N -- where N is the number of transactions between the last
1088: retrieved in &initialize_storage() and the last stored immediately
1089: before permanent storage of the current transaction via
1090: lond::store_handler(). &Apache::grades::makehidden() is called
1091: for any parts with out-of-order storage (i.e., correct then incorrect,
1092: where awarded >= 1 when correct).
1093:
1094: Will call &store_aggregates() to increment totals for attempts,
1095: students, and corrects, if running user has student role.
1.435 jms 1096:
1097: =cut
1098:
1099:
1.65 albertel 1100: sub finalize_storage {
1.357 albertel 1101: my ($given_symb) = @_;
1.159 albertel 1102: my $result;
1.289 albertel 1103: if (%Apache::lonhomework::results) {
1.323 albertel 1104: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
1105: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 1106: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1107: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 1108: if ($env{'request.state'} eq 'construct'
1109: || $symb eq ''
1110: || $Apache::lonhomework::type eq 'practice') {
1111: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 1112: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 1113: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 1114: $namespace,'',$domain,$name);
1.159 albertel 1115: &Apache::lonxml::debug('Construct Store return message:'.$result);
1116: } else {
1.512.2.9 raeburn 1117: my ($laststore,$checkedparts,@parts,%postcorrect);
1118: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1119: (!$Apache::lonhomework::scantronmode) && (!defined($env{'form.grade_symb'})) &&
1120: (!defined($env{'form.grade_courseid'}))) {
1121: if ($Apache::lonhomework::history{'version'}) {
1122: $laststore = $Apache::lonhomework::history{'version'}.'='.
1123: $Apache::lonhomework::history{'timestamp'};
1124: } else {
1125: $laststore = '0=0';
1126: }
1127: my %record = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1128: if ($record{'version'}) {
1129: my ($newversion,$oldversion,$oldtimestamp);
1130: if ($Apache::lonhomework::history{'version'}) {
1131: $oldversion = $Apache::lonhomework::history{'version'};
1132: $oldtimestamp = $Apache::lonhomework::history{'timestamp'};
1133: } else {
1134: $oldversion = 0;
1135: $oldtimestamp = 0;
1136: }
1137: if ($record{'version'} > $oldversion) {
1138: if ($record{'timestamp'} >= $oldtimestamp) {
1139: $laststore = $record{'version'}.'='.$record{'timestamp'};
1140: $newversion = $record{'version'} + 1;
1141: $checkedparts = 1;
1142: foreach my $key (keys(%Apache::lonhomework::results)) {
1143: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1144: my $part = $1;
1145: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1146: push(@parts,$part);
1147: }
1148: }
1149: }
1150: if (@parts) {
1151: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1152: \%record,\@parts,$newversion,
1153: $oldversion);
1154: if (@parts_to_hide) {
1155: foreach my $part (@parts_to_hide) {
1156: $postcorrect{$part} = 1;
1157: &Apache::inputtags::hidealldata($part);
1158: }
1159: }
1160: }
1161: }
1162: }
1163: }
1164: }
1.159 albertel 1165: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
1.512.2.9 raeburn 1166: $symb,$courseid,$domain,$name,$laststore);
1167: if ($result =~ /^delay\:(\d+)$/) {
1168: my $numtrans = $1;
1169: my ($oldversion) = split(/=/,$laststore);
1170: if ($numtrans) {
1171: my $newversion = $oldversion + 1 + $numtrans;
1172: my @possparts;
1173: if ($checkedparts) {
1174: foreach my $part (@parts) {
1175: unless ($postcorrect{$part}) {
1176: push(@possparts,$part);
1177: }
1178: }
1179: } else {
1180: foreach my $key (keys(%Apache::lonhomework::results)) {
1181: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1182: my $part = $1;
1183: unless ($postcorrect{$part}) {
1184: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1185: push(@possparts,$part);
1186: }
1187: }
1188: }
1189: }
1190: }
1191: if (@possparts) {
1192: my %newrecord = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1193: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1194: \%newrecord,\@possparts,$newversion,
1195: $oldversion);
1196: if (@parts_to_hide) {
1197: my $partslist = join(',',@parts_to_hide);
1198: &Apache::grades::makehidden($newversion,$partslist,\%newrecord,$symb,$domain,$name,1);
1199: }
1200: }
1201: }
1202: }
1.159 albertel 1203: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 1204: &store_aggregates($symb,$courseid);
1.159 albertel 1205: }
1.323 albertel 1206: } else {
1207: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 1208: }
1.159 albertel 1209: return $result;
1.65 albertel 1210: }
1211:
1.435 jms 1212: =pod
1213:
1.512.2.9 raeburn 1214: =item check_correctness_changes()
1215:
1216: For all parts for which current results contain a solved status
1217: of "incorrect_attempted", check if there was a transaction in which
1218: solved was set to "correct_by_student" in the time since the last
1219: transaction (retrieved when &initialize_storage() was called i.e.,
1220: when &start_problem() was called), unless:
1221: (a) questiontype parameter is set to survey or anonymous survey (+/- credit)
1222: (b) problemstatus is set to no or no_feedback_ever
1223: If such a transaction exists, and did not occur after "reset status"
1224: by a user with grading privileges, then the current transaction is an
1225: example of an out-of-order transaction (i.e., incorrect occurring after
1226: correct). Accordingly, the current transaction should be hidden.
1227:
1228: =cut
1229:
1230:
1231: sub check_correctness_changes {
1232: my ($symb,$courseid,$domain,$name,$record,$parts,$newversion,$oldversion) = @_;
1233: my @parts_to_hide;
1234: unless ((ref($record) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
1235: return @parts_to_hide;
1236: }
1237: if (@{$parts}) {
1238: my $usec;
1239: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1240: ($env{'request.course.id'} eq $courseid)) {
1241: $usec = $env{'request.course.sec'};
1242: } else {
1243: $usec = &Apache::lonnet::getsection($domain,$name,$courseid);
1244: }
1245: foreach my $id (@{$parts}) {
1246: next if (($Apache::lonhomework::results{'resource.'.$id.'.type'} =~ /survey/) ||
1247: (&Apache::lonnet::EXT("resource.$id.problemstatus",$symb,
1248: $domain,$name,$usec,undef,$courseid) =~ /^no/));
1249: my $reset;
1250: for (my $i=$newversion-1; $i>=$oldversion; $i--) {
1251: if (($record->{$i.':resource.'.$id.'.regrader'}) &&
1252: ($record->{$i.':resource.'.$id.'.tries'} eq '') &&
1253: ($record->{$i.':resource.'.$id.'.award'} eq '')) {
1254: $reset = 1;
1255: } elsif (($record->{$i.":resource.$id.solved"} eq 'correct_by_student') &&
1256: ($record->{$i.":resource.$id.awarded"} >= 1)) {
1257: unless ($reset) {
1258: push(@parts_to_hide,$id);
1259: last;
1260: }
1261: }
1262: }
1263: }
1264: }
1265: return @parts_to_hide;
1266: }
1267:
1268: =pod
1269:
1.435 jms 1270: item store_aggregates()
1271:
1272: Sends hash of values to be incremented in nohist_resourcetracker.db
1273: for the course. Increments total number of attempts, unique students
1274: and corrects for each part for an instance of a problem, as appropriate.
1275:
1276: =cut
1277:
1.285 raeburn 1278: sub store_aggregates {
1279: my ($symb,$courseid) = @_;
1.479 raeburn 1280: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 1281: my @parts;
1.288 albertel 1282: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
1283: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 1284: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 1285: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 1286: push(@parts, $1);
1.285 raeburn 1287: }
1288: }
1.286 albertel 1289: foreach my $part (@parts) {
1.470 raeburn 1290: if ($env{'request.role'} =~/^st/) {
1291: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
1292: eq 'APPROX_ANS' ||
1293: $Apache::lonhomework::results{'resource.'.$part.'.award'}
1294: eq 'EXACT_ANS') {
1295: $aggregate{$symb."\0".$part."\0correct"} = 1;
1296: }
1297: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1298: $aggregate{$symb."\0".$part."\0users"} = 1;
1299: } else {
1300: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1301: if ($last_reset) {
1302: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1303: $aggregate{$symb."\0".$part."\0users"} = 1;
1304: }
1305: }
1306: }
1307: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 1308: }
1.470 raeburn 1309: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 1310: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
1311: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
1312: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
1313: $randtrycounter{$symb."\0".$part} = 1;
1314: } else {
1315: $anoncounter{$symb."\0".$part} = 1;
1316: }
1.470 raeburn 1317: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
1318: if ($needsrelease) {
1319: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
1320: if ($curr_required eq '') {
1.471 raeburn 1321: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1322: } else {
1323: my ($currmajor,$currminor) = split(/\./,$curr_required);
1324: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
1325: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 1326: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1327: }
1.292 raeburn 1328: }
1329: }
1.285 raeburn 1330: }
1331: }
1.512.2.9 raeburn 1332: if (keys(%aggregate) > 0) {
1.289 albertel 1333: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 1334: $cdomain,$cname);
1335: }
1.472 raeburn 1336: if (keys(%anoncounter) > 0) {
1.481 raeburn 1337: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
1338: $cdomain,$cname);
1.472 raeburn 1339: }
1.479 raeburn 1340: if (keys(%randtrycounter) > 0) {
1.481 raeburn 1341: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
1342: $cdomain,$cname);
1.479 raeburn 1343: }
1.292 raeburn 1344: }
1.289 albertel 1345:
1.65 albertel 1346: sub checkout_msg {
1.211 albertel 1347: my %lt=&Apache::lonlocal::texthash(
1348: 'resource'=>'The resource needs to be checked out',
1349: 'id_expln'=>'As a resource gets checked out, a unique timestamped ID is given to it, and a permanent record is left in the system.',
1350: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
1.512.2.1 raeburn 1351: 'checkout'=>'Check out Exam for Viewing',
1352: 'checkout?'=>'Check out Exam?');
1.352 albertel 1353: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 1354: return (<<ENDCHECKOUT);
1.211 albertel 1355: <h2>$lt{'resource'}</h2>
1356: <p>$lt{'id_expln'}</p>
1.449 bisitz 1357: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 1358: <form name="checkout" method="post" action="$uri">
1.91 albertel 1359: <input type="hidden" name="doescheckout" value="yes" />
1.512.2.4 raeburn 1360: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onclick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 1361: </form>
1362: ENDCHECKOUT
1363: }
1364:
1.252 albertel 1365: sub firstaccess_msg {
1.253 albertel 1366: my ($time,$symb)=@_;
1.414 albertel 1367: my $result;
1368: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1369: if ($interval[1] eq 'map') {
1370: my ($map)=&Apache::lonnet::decode_symb($symb);
1371: my $foldertitle=&Apache::lonnet::gettitle($map);
1372:
1373: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 1374: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
1375: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1376: ,$foldertitle,$time)."</p>";
1.414 albertel 1377: } elsif ($interval[1] eq 'course') {
1378: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 1379: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 1380: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 1381: ,$course,$time)."</p>";
1.414 albertel 1382: } else {
1383: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1384: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1385: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1386: ,$title,$time)."</p>";
1.414 albertel 1387: }
1.352 albertel 1388: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1389: my $buttontext = &mt('Show Resource');
1390: my $timertext = &mt('Start Timer?');
1.414 albertel 1391: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1392: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1393: <input type="hidden" name="markaccess" value="yes" />
1.512.2.4 raeburn 1394: <input type="button" name="accessbutton" value="$buttontext" onclick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1395: </form>
1396: ENDCHECKOUT
1.414 albertel 1397: return $result;
1.252 albertel 1398: }
1399:
1.204 albertel 1400: sub init_problem_globals {
1401: my ($type)=@_;
1402: #initialize globals
1.308 foxr 1403: # For problems, we start out in part 0 (outside a <part> tag).
1404: # and part 0 is used to describe the main body of the <problem>
1405: #
1.204 albertel 1406: if ($type eq 'problem') {
1407: $Apache::inputtags::part='0';
1408: @Apache::inputtags::partlist=('0');
1.405 albertel 1409: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1410: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1411:
1.266 albertel 1412: } elsif ($type eq 'library') {
1.204 albertel 1413: $Apache::inputtags::part='';
1414: @Apache::inputtags::partlist=();
1.405 albertel 1415: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1416: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1417:
1.304 albertel 1418: } elsif ($type eq 'Task') {
1419: $Apache::inputtags::part='0';
1420: @Apache::inputtags::partlist=('0');
1.405 albertel 1421: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1422: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1423: }
1.477 www 1424: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1425: @Apache::inputtags::responselist = ();
1426: @Apache::inputtags::importlist = ();
1427: @Apache::inputtags::previous=();
1428: @Apache::inputtags::previous_version=();
1.512.2.10 raeburn 1429: $Apache::inputtags::leniency='';
1.204 albertel 1430: $Apache::structuretags::printanswer='No';
1431: @Apache::structuretags::whileconds=();
1432: @Apache::structuretags::whilebody=();
1433: @Apache::structuretags::whileline=();
1434: $Apache::lonhomework::scantronmode=0;
1.512.2.21 raeburn 1435: $Apache::lonhomework::randomizetrypart=0;
1.204 albertel 1436: undef($Apache::lonhomework::name);
1.358 albertel 1437: undef($Apache::lonhomework::default_type);
1438: undef($Apache::lonhomework::type);
1.204 albertel 1439: }
1440:
1441: sub reset_problem_globals {
1442: my ($type)=@_;
1443: undef(%Apache::lonhomework::history);
1444: undef(%Apache::lonhomework::results);
1445: undef($Apache::inputtags::part);
1.512.2.10 raeburn 1446: undef($Apache::inputtags::leniency);
1.498 raeburn 1447: if ($type eq 'Task') {
1448: undef($Apache::inputtags::slot_name);
1.512.2.9 raeburn 1449: } elsif ($type eq 'problem') {
1450: undef($Apache::lonhomework::rawrndseed);
1.498 raeburn 1451: }
1.208 albertel 1452: #don't undef this, lonhomework.pm takes care of this, we use this to
1453: #detect if we try to do 2 problems in one file
1454: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1455: undef($Apache::lonhomework::name);
1.358 albertel 1456: undef($Apache::lonhomework::default_type);
1457: undef($Apache::lonhomework::type);
1458: undef($Apache::lonhomework::scantronmode);
1.512.2.21 raeburn 1459: undef($Apache::inputtags::randomizetrypart);
1.358 albertel 1460: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1461: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1462: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1463: }
1464:
1.241 albertel 1465: sub set_problem_state {
1.240 albertel 1466: my ($part)=@_;
1.284 albertel 1467: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1468: $Apache::lonhomework::history{"resource.$part.solved"}=
1469: 'correct_by_student';
1470: }
1471: }
1472:
1.241 albertel 1473: sub get_problem_status {
1474: my ($part)=@_;
1.267 albertel 1475: my $problem_status;
1.284 albertel 1476: if ($env{'request.state'} eq 'construct' &&
1477: defined($env{'form.problemstatus'})) {
1478: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1479: } else {
1480: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1481: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1482: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1483: }
1484: return $problem_status;
1485: }
1486:
1.9 albertel 1487: sub start_problem {
1.326 albertel 1488: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1489:
1.311 foxr 1490: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1491: if (!$Apache::lonxml::metamode) {
1492: &Apache::lonxml::startredirection();
1493: }
1.311 foxr 1494:
1.308 foxr 1495: # Problems don't nest and we don't allow more than one <problem> in
1496: # a .problem file.
1497: #
1.184 albertel 1498: if ( $Apache::inputtags::part ne '' ||
1499: $Apache::lonhomework::parsing_a_problem) {
1500: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1501: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1502: return '';
1503: }
1.184 albertel 1504:
1505: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1506: &init_problem_globals('problem');
1.166 albertel 1507:
1.284 albertel 1508: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1509: $Apache::lonhomework::scantronmode=1;
1510: }
1.161 albertel 1511:
1.159 albertel 1512: if ($target ne 'analyze') {
1.415 raeburn 1513: my $type = &Apache::lonnet::EXT('resource.0.type');
1514: $Apache::lonhomework::type=$type;
1.284 albertel 1515: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1516: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1517: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1518: }
1.332 albertel 1519: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1520: }
1.164 albertel 1521: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1522: my $uri=$env{'request.uri'};
1.159 albertel 1523: if ($uri=~/\.(\w+)$/) {
1524: $Apache::lonhomework::type=$1;
1525: &Apache::lonxml::debug("Using type of $1");
1526: } else {
1527: $Apache::lonhomework::type='problem';
1528: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1529: }
1.87 albertel 1530: }
1.301 albertel 1531: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1532:
1.363 albertel 1533: &initialize_storage();
1.389 albertel 1534: if ($target ne 'analyze'
1535: && $env{'request.state'} eq 'construct') {
1536: &set_problem_state('0');
1537: }
1538:
1.366 albertel 1539: if ($target eq 'web') {
1540: &Apache::lonxml::debug(" grading history ");
1541: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1542: }
1.363 albertel 1543:
1.159 albertel 1544: #added vars to the scripting enviroment
1.213 albertel 1545: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1546: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1547: &Apache::run::run($expression,$safeeval);
1.159 albertel 1548: my $status;
1549: my $accessmsg;
1.508 raeburn 1550: my $resource_due;
1.159 albertel 1551:
1.343 albertel 1552: my $name= &get_resource_name($parstack,$safeeval);
1.512.2.16 raeburn 1553: my ($result,$form_tag_start,$slot_name,$slot,$probpartlist,$firstaccres);
1.506 raeburn 1554:
1555: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1556: $target eq 'tex') {
1557: if ($env{'form.markaccess'}) {
1558: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1.512.2.16 raeburn 1559: my $is_set = &Apache::lonnet::set_first_access($interval[1],$interval[0]);
1560: unless (($is_set eq 'ok') || ($is_set eq 'already_set')) {
1561: $firstaccres = $is_set;
1562: }
1.506 raeburn 1563: }
1564:
1565: ($status,$accessmsg,$slot_name,$slot) =
1566: &Apache::lonhomework::check_slot_access('0','problem');
1567: push (@Apache::inputtags::status,$status);
1568: }
1569:
1.354 albertel 1570: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1571: || $target eq 'edit') {
1.512.2.9 raeburn 1572: ($result,$form_tag_start,$probpartlist) =
1.350 albertel 1573: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1574: $name);
1.512.2.9 raeburn 1575: } elsif (($target eq 'grade') && ($Apache::lonhomework::type eq 'randomizetry')) {
1576: my ($symb)= &Apache::lonnet::whichuser();
1.512.2.22! raeburn 1577: if ($symb ne '') {
! 1578: my $navmap = Apache::lonnavmaps::navmap->new();
! 1579: if (ref($navmap)) {
! 1580: my $res = $navmap->getBySymb($symb);
! 1581: if (ref($res)) {
! 1582: $probpartlist = $res->parts();
! 1583: }
1.512.2.9 raeburn 1584: }
1585: }
1.350 albertel 1586: }
1587:
1.284 albertel 1588: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1589:
1.479 raeburn 1590: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1591: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1592: $target eq 'tex') {
1.479 raeburn 1593:
1.512.2.22! raeburn 1594: my ($symb) = &Apache::lonnet::whichuser();
1.159 albertel 1595: #handle rand seed in construction space
1.512.2.22! raeburn 1596: if (($env{'request.state'} eq 'construct') || ($symb eq '')) {
! 1597: my $partorder=&Apache::lonnet::metadata($env{'request.uri'},'partorder');
! 1598: if ($partorder ne '') {
! 1599: @{$probpartlist} = split(/,/,$partorder);
! 1600: }
! 1601: }
1.512.2.9 raeburn 1602: my $rndseed=&setup_rndseed($safeeval,$target,$probpartlist);
1603: if (($target eq 'grade') && &Apache::response::submitted()) {
1604: if ($Apache::lonhomework::type eq 'randomizetry') {
1605: $Apache::lonhomework::results{'resource.0.rndseed'}=$rndseed;
1606: } else {
1607: my @parts;
1608: if (ref($probpartlist) eq 'ARRAY') {
1609: @parts = @{$probpartlist};
1610: }
1611: unless (@parts) {
1612: $Apache::lonhomework::results{'resource.0.rndseed'}=$Apache::lonhomework::rawrndseed;
1613: }
1614: }
1615: }
1.479 raeburn 1616:
1.333 albertel 1617: if ($env{'request.state'} ne "construct" &&
1618: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.512.2.20 raeburn 1619: my $rndseedval = $rndseed;
1620: if (($symb eq '') && ($Apache::lonhomework::type eq 'randomizetry')) {
1621: $rndseedval = $env{'form.rndseed'};
1622: }
1.162 albertel 1623: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.512.2.20 raeburn 1624: $rndseedval.'" />'.
1.462 raeburn 1625: '<input type="submit" name="resetdata"
1626: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1627: if (exists($env{'form.username'})) {
1628: $form_tag_start.=
1.164 albertel 1629: '<input type="hidden" name="username"
1.284 albertel 1630: value="'.$env{'form.username'}.'" />';
1.334 albertel 1631: }
1.462 raeburn 1632: if ($env{'request.role.adv'}) {
1633: $form_tag_start.= ' <label class="LC_nobreak">'
1634: .'<input type="checkbox" name="showallfoils"';
1635: if (defined($env{'form.showallfoils'})) {
1636: $form_tag_start.=' checked="checked"';
1637: }
1638: $form_tag_start.= ' /> '
1639: .&mt('Show All Foils')
1640: .'</label>';
1641: }
1.417 www 1642: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1643: $form_tag_start.=&practice_problem_header();
1.417 www 1644: }
1.462 raeburn 1645: $form_tag_start.='<hr />';
1.512.2.20 raeburn 1646: }
1647: if (($env{'request.state'} ne "construct") &&
1648: ($Apache::lonhomework::type eq 'randomizetry') &&
1649: ($status eq 'CAN_ANSWER')) {
1.512.2.21 raeburn 1650: my @parts;
1651: if (ref($probpartlist) eq 'ARRAY') {
1652: @parts = @{$probpartlist};
1653: }
1654: unless (@parts) {
1655: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1656: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1657: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries,$symb);
1658: }
1.479 raeburn 1659: }
1.324 albertel 1660:
1.159 albertel 1661: my $expression='$external::datestatus="'.$status.'";';
1662: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1663: &Apache::run::run($expression,$safeeval);
1664: &Apache::lonxml::debug("Got $status");
1.324 albertel 1665:
1.159 albertel 1666: if (( $status eq 'CLOSED' ) ||
1667: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1668: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1669: ( $status eq 'BANNED') ||
1.216 albertel 1670: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1671: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1672: ( $status eq 'NOTRESERVABLE') ||
1673: ( $status eq 'RESERVABLE') ||
1674: ( $status eq 'RESERVABLE_LATER') ||
1.216 albertel 1675: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1676: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1677: $style);
1.159 albertel 1678: if ( $target eq "web" ) {
1.343 albertel 1679: my $msg;
1.159 albertel 1680: if ($status eq 'UNAVAILABLE') {
1.504 golterma 1681: $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1.441 raeburn 1682: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.504 golterma 1683: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1.499 raeburn 1684: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1685: ($status eq 'NOTRESERVABLE')) {
1.504 golterma 1686: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1.253 albertel 1687: } elsif ($status ne 'NOT_YET_VIEWED') {
1.504 golterma 1688: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1.499 raeburn 1689: }
1.216 albertel 1690: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1691: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1692: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1693: $msg.=&checkout_msg();
1.252 albertel 1694: } elsif ($status eq 'NOT_YET_VIEWED') {
1.512.2.16 raeburn 1695: if ($firstaccres) {
1696: $msg .= '<p class="LC_error">'.
1697: &mt('A problem occurred when trying to start the timer.').'</p>';
1698: }
1.253 albertel 1699: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1700: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1701: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.499 raeburn 1702: } elsif ($status eq 'RESERVABLE') {
1703: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1704: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1705: '<br />'.
1706: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1707: } elsif ($status eq 'RESERVABLE_LATER') {
1708: $msg.=&mt('Window to make a reservation will open [_1].',
1709: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1710: } elsif ($status eq 'NOTRESERVABLE') {
1711: $msg.=&mt('Not available to make a reservation.');
1.159 albertel 1712: }
1713: $result.=$msg.'<br />';
1714: } elsif ($target eq 'tex') {
1.332 albertel 1715: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1716: : '\begin{minipage}{\textwidth}';
1.443 foxr 1717: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1718: $startminipage.'\vskip 0 mm';
1.159 albertel 1719: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1720: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1721: } else {
1.211 albertel 1722: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1723: }
1724: }
1.324 albertel 1725: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1726: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1727: $style);
1.324 albertel 1728: if ($target eq 'web') {
1.375 albertel 1729: $result .=
1730: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1731: } elsif ($target eq 'grade') {
1732: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1733: 'problem');
1734: }
1.159 albertel 1735: } elsif ($target eq 'web') {
1.508 raeburn 1736: if ($status eq 'CAN_ANSWER') {
1737: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1738: if ($slot_name ne '') {
1739: my $checked_in =
1740: $Apache::lonhomework::history{'resource.0.checkedin'};
1741: if ($checked_in eq '') {
1742: # unproctored slot access, self checkin
1743: &Apache::bridgetask::check_in('problem',undef,undef,
1744: $slot_name);
1745: $checked_in =
1746: $Apache::lonhomework::results{"resource.0.checkedin"};
1747: }
1748: if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1749: if ($slot->{'starttime'} < time()) {
1750: if (!$resource_due) {
1751: $resource_due = $slot->{'endtime'};
1752: } elsif ($slot->{'endtime'} < $resource_due) {
1753: $resource_due = $slot->{'endtime'};
1754: }
1755: }
1756: }
1757: }
1758: if ($resource_due) {
1759: my $time_left = $resource_due - time();
1760: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1761: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1762: }
1763: }
1764: }
1.368 albertel 1765: $result.="\n $form_tag_start \t".
1.227 albertel 1766: '<input type="hidden" name="submitted" value="yes" />';
1767: # create a page header and exit
1.284 albertel 1768: if ($env{'request.state'} eq "construct") {
1769: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1770: if ($Apache::lonhomework::type eq 'practice') {
1771: $result.= '<input type="submit" name="resetdata" '.
1772: 'value="'.&mt('New Problem Variation').'" />'.
1773: &practice_problem_header().'<hr />';
1.512.2.19 raeburn 1774: } elsif ($Apache::lonhomework::type eq 'randomizetry') {
1775: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1776: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1777: $result.=&randomizetry_problem_header($problemstatus,$reqtries);
1.428 raeburn 1778: }
1.227 albertel 1779: }
1780: # if we are viewing someone else preserve that info
1.284 albertel 1781: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1782: foreach my $field ('symb','courseid','domain','username') {
1783: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1784: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1785: }
1.479 raeburn 1786: foreach my $field ('trial','questiontype') {
1787: if ($env{"form.grade_$field"} ne '') {
1788: $result .= '<input type="hidden" name="grade_'.$field.
1789: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1790: }
1791: }
1.159 albertel 1792: }
1.490 raeburn 1793: if ($env{'form.grade_imsexport'}) {
1794: $result = '';
1795: }
1.159 albertel 1796: } elsif ($target eq 'tex') {
1.319 foxr 1797: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 1798: $result .= &select_metadata_hyphenation();
1799:
1.319 foxr 1800:
1.99 sakharuk 1801: }
1.159 albertel 1802: } elsif ($target eq 'edit') {
1.343 albertel 1803: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1804: $Apache::lonxml::warnings_error_header=
1805: &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 1806: my $temp=&Apache::edit::insertlist($target,$token);
1807: $result.=$temp;
1808: } elsif ($target eq 'modified') {
1809: $result=$token->[4];
1810: } else {
1811: # page_start returned a starting result, delete it if we don't need it
1812: $result = '';
1.99 sakharuk 1813: }
1.159 albertel 1814: return $result;
1.9 albertel 1815: }
1816:
1817: sub end_problem {
1.159 albertel 1818: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1819: my $result;
1.310 foxr 1820:
1.321 albertel 1821: if (!$Apache::lonxml::metamode) {
1822: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1823: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1824: }
1.319 foxr 1825:
1826: if ($target eq 'tex') {
1.321 albertel 1827: # Figure out the front matter and replace the
1828: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1829: # this in end_problem because whether or not we display due
1830: # dates depends on whether due dates have already been
1831: # displayed in the problem parts.
1832:
1.319 foxr 1833: my $frontmatter = '';
1834: my $startminipage = '';
1835: if (not $env{'form.problem_split'}=~/yes/) {
1836: $startminipage = '\begin{minipage}{\textwidth}';
1837: }
1838: my $id = $Apache::inputtags::part;
1839: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1840: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.512.2.9 raeburn 1841: my @packages = split(/,/,$packages);
1.319 foxr 1842: my $allow_print_points = 0;
1843: foreach my $partial_key (@packages) {
1844: if ($partial_key=~m/^part_0$/) {
1845: $allow_print_points=1;
1846: }
1847: }
1848: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1849: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1850: if (lc($env{'course.'.$env{'request.course.id'}.
1851: '.disableexampointprint'}) eq 'yes') {
1852: $allow_print_points=0;
1853: }
1854: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1855: 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 1856: &clear_required_languages();
1.319 foxr 1857: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1858: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1859:
1860: # Figure out what the due date is and if we need to print
1861: # it in the problem header. We have been logging the
1862: # last due date written to file.
1863:
1864: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1865: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1866: my $duedate_text = &mt('Due date: [_1]'
1867: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1868: my $temp_file;
1869: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1870:
1871: # Figure out what the last printed due date is or set it
1872: # to the epoch if no duedates have been printed.
1873:
1874: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1875: if (-e $filename) {
1876: $temp_file = Apache::File->new($filename);
1877: my @due_file = <$temp_file>;
1878: $due_file_content = $due_file[$#due_file];
1879: chomp $due_file_content;
1880: }
1881:
1882: # We display the due date iff it is not the same as the last
1883: # duedate in problem header ($due_file_content), and
1884: # none of our parts displayed a duedate.
1885: #
1886: my $parts_with_displayduedate;
1887: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1888: $parts_with_displayduedate =
1889: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1890: } else {
1891: $parts_with_displayduedate = 0;
1892: }
1893: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1894: $temp_file = Apache::File->new('>'.$filename);
1895: print $temp_file "$duetime\n";
1896: if (not $env{'request.symb'} =~ m/\.page_/) {
1897: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1898: $frontmatter .= $begin_doc.
1.448 bisitz 1899: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1900: } else {
1901: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1902: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1903: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1904: }
1.319 foxr 1905: }
1906: } else {
1.448 bisitz 1907: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1908: }
1909: } else {
1910: if (not $env{'request.symb'} =~ m/\.page_/) {
1911: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1912: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1913: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1914: }
1.319 foxr 1915: } else {
1.381 albertel 1916: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1917: }
1918: }
1919: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1920: }
1921:
1.159 albertel 1922: my $status=$Apache::inputtags::status['-1'];
1923: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1924: $target eq 'tex') {
1.249 albertel 1925: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1926: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1927: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1928: &Apache::inputtags::grade;
1.324 albertel 1929: } elsif ($status eq 'NEEDS_CHECKIN') {
1930: # no need to grade, and don't want to hide data
1.249 albertel 1931: } else {
1932: # move any submission data to .hidden
1933: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1934: }
1.159 albertel 1935: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1936: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1937: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1938: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1939: # if part is zero, no <part>s existed, so we need show the current
1940: # grading status
1941: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1942: $result.= $gradestatus;
1943: }
1944: if (
1.284 albertel 1945: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1946: ($target eq 'answer') || ($target eq 'tex')
1947: ) {
1.490 raeburn 1948: if (($target ne 'tex') &&
1949: ($env{'form.answer_output_mode'} ne 'tex') &&
1950: (!$env{'form.grade_imsexport'})) {
1.254 www 1951: $result.="</form>";
1.159 albertel 1952: }
1953: if ($target eq 'web') {
1.507 raeburn 1954: #
1955: # Closing </body></html> not added by end_page().
1956: # Added separately at end of this routine, after added
1957: # <script></script> so document will be valid xhtml.
1958: #
1959: $result.= &Apache::loncommon::end_page({'discussion' => 1,
1960: 'notbody' => 1});
1.159 albertel 1961: } elsif ($target eq 'tex') {
1.178 sakharuk 1962: my $endminipage = '';
1.284 albertel 1963: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1964: $endminipage = '\end{minipage}';
1965: }
1.284 albertel 1966: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1967: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1968: } else {
1.262 sakharuk 1969: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1970: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1971: $result .= $endminipage.'\end{document} ';
1972: } else {
1.382 albertel 1973: $result .= $endminipage;
1.262 sakharuk 1974: }
1.159 albertel 1975: }
1976: }
1977: }
1.476 www 1978: if ($target eq 'web') {
1.512.2.21 raeburn 1979: $result.=&Apache::functionplotresponse::init_script();
1980: if ($Apache::lonhomework::default_type eq 'randomizetry') {
1981: my ($symb) = &Apache::lonnet::whichuser();
1982: if ((($env{'request.state'} eq 'construct') || ($symb eq '')) &&
1983: ($status eq 'CAN_ANSWER')) {
1984: unless (@Apache::inputtags::partlist > 1) {
1985: $result.= <<"ENDJS";
1986: <script type="text/javascript">
1987: // <![CDATA[
1988: \$(document).ready(function() {
1989: \$('#LC_randomizetry_header').css('display','block');
1990: });
1991: // ]]>
1992: </script>
1993: ENDJS
1994: }
1995: }
1996: }
1.476 www 1997: }
1.159 albertel 1998: if ($target eq 'grade') {
1999: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
2000: &finalize_storage();
2001: }
1.284 albertel 2002: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
2003: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 2004: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 2005: # normally we get it from above, but in CSTR
1.172 albertel 2006: # we always show answer mode too.
1.159 albertel 2007: }
2008: } elsif ($target eq 'meta') {
2009: if ($Apache::inputtags::part eq '0') {
1.179 albertel 2010: @Apache::inputtags::response=();
1.159 albertel 2011: $result=&Apache::response::mandatory_part_meta;
2012: }
1.215 albertel 2013: $result.=&Apache::response::meta_part_order();
1.258 albertel 2014: $result.=&Apache::response::meta_response_order();
1.159 albertel 2015: } elsif ($target eq 'edit') {
2016: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 2017: $result .= &problem_edit_footer();
1.320 albertel 2018: } elsif ($target eq 'modified') {
2019: $result .= $token->[2];
1.159 albertel 2020: }
1.155 albertel 2021:
1.284 albertel 2022: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 2023: &Apache::inputtags::check_for_duplicate_ids();
2024: }
1.204 albertel 2025:
2026: &reset_problem_globals('problem');
1.159 albertel 2027:
1.502 foxr 2028: #
2029: # This shouild be just above the return so that the
2030: # time put in the javascript is as late as possible in the
2031: # computation:
2032: #
2033: if ($target eq 'web') {
2034: $result .= &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 2035: #
2036: # Closing tags delayed so any <script></script> tags
2037: # not in head can appear inside body, for valid xhtml.
2038: #
2039: $result .= "</body>\n</html>";
1.502 foxr 2040: }
1.159 albertel 2041: return $result;
1.48 albertel 2042: }
2043:
1.108 albertel 2044:
1.48 albertel 2045: sub start_library {
1.159 albertel 2046: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 2047: my ($result,$form_tag_start);
1.371 albertel 2048: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 2049: &init_problem_globals('library');
2050: $Apache::lonhomework::type='problem';
2051: }
1.159 albertel 2052: if ($target eq 'edit') {
1.343 albertel 2053: ($result,$form_tag_start)=
2054: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2055: 'Edit');
2056: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 2057: my $temp=&Apache::edit::insertlist($target,$token);
2058: $result.=$temp;
2059: } elsif ($target eq 'modified') {
2060: $result=$token->[4];
1.340 albertel 2061: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 2062: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 2063: && $env{'request.state'} eq "construct" ) {
1.159 albertel 2064: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 2065: ($result,$form_tag_start)=
2066: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2067: $name);
1.479 raeburn 2068: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 2069: $result.=" \n $form_tag_start".
1.159 albertel 2070: '<input type="hidden" name="submitted" value="yes" />';
2071: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 2072: if ($Apache::lonhomework::type eq 'practice') {
2073: $result.= '<input type="submit" name="resetdata" '.
2074: 'value="'.&mt('New Problem Variation').'" />'.
2075: &practice_problem_header().'<hr />';
2076: }
1.159 albertel 2077: }
2078: return $result;
1.48 albertel 2079: }
2080:
2081: sub end_library {
1.159 albertel 2082: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2083: my $result='';
2084: if ($target eq 'edit') {
2085: $result=&problem_edit_footer();
1.371 albertel 2086: } elsif ($target eq 'web'
2087: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
2088: && $env{'request.state'} eq "construct") {
1.349 albertel 2089: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.512.2.15 raeburn 2090: } elsif ($target eq 'meta') {
2091: $result.=&Apache::response::meta_response_order();
1.159 albertel 2092: }
1.371 albertel 2093: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
2094: &reset_problem_globals('library');
2095: }
1.159 albertel 2096: return $result;
1.197 www 2097: }
2098:
2099: sub start_definetag {
1.326 albertel 2100: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 2101:
2102: my $result;
2103:
2104: my $name = $token->[2]->{'name'};
1.326 albertel 2105: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 2106: if ($target eq 'web') {
2107: if ($name=~/^\//) {
2108: $result=
2109: '<br /><table class="LC_sty_end"><tr><th>'.
2110: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2111: } else {
2112: $result=
2113: '<br /><table class="LC_sty_begin"><tr><th>'.
2114: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2115: }
2116: $skip = &HTML::Entities::encode($skip, '<>&"');
2117: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 2118: }
2119: return $result;
2120: }
2121:
2122: sub end_definetag {
2123: return '';
1.1 albertel 2124: }
2125:
2126: sub start_block {
1.201 albertel 2127: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 2128:
2129: my $result;
1.1 albertel 2130:
1.339 albertel 2131: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2132: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 2133: my $code = $token->[2]->{'condition'};
1.385 albertel 2134: if (defined($code) && $code ne '') {
1.137 albertel 2135: if (!$Apache::lonxml::default_homework_loaded) {
2136: &Apache::lonxml::default_homework_load($safeeval);
2137: }
1.131 albertel 2138: $result = &Apache::run::run($code,$safeeval);
2139: &Apache::lonxml::debug("block :$code: returned :$result:");
2140: } else {
2141: $result='1';
2142: }
2143: if ( ! $result ) {
1.201 albertel 2144: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 2145: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2146: }
2147: $result='';
2148: } elsif ($target eq 'edit') {
2149: $result .=&Apache::edit::tag_start($target,$token);
2150: $result .=&Apache::edit::text_arg('Test Condition:','condition',
2151: $token,40);
2152: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2153: } elsif ($target eq 'modified') {
2154: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2155: $safeeval,'condition');
2156: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 2157: }
1.131 albertel 2158: return $result;
1.1 albertel 2159: }
2160:
2161: sub end_block {
1.167 www 2162: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2163: my $result;
2164: if ($target eq "edit") {
2165: $result.= &Apache::edit::tag_end($target,$token,'');
2166: }
2167: return $result;
2168: }
1.500 foxr 2169: #
2170: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
2171: # ...
2172: # </languageblock>
2173: #
2174: # This declares the intent to provide content that can be rendered in the
2175: # set of languages in the include specificatino but not in the exclude
2176: # specification. If a currently preferred language is in the include list
2177: # the content in the <languageblock>...</languageblock> is rendered
2178: # If the currently preferred language is in the exclude list,
2179: # the content in the <languageblock>..></languageblock is not rendered.
2180: #
2181: # Pathalogical case handling:
2182: # - Include specified, without the preferred language but exclude specified
2183: # also without the preferred langauge results in rendering the block.
2184: # - Exclude specified without include and excluden not containing a
2185: # preferred language renders the block.
2186: # - Include and exclude both specifying the preferred language does not
2187: # render the block.
2188: # - If neither include/exclude is specified, the block gets rendered.
2189: #
2190: # This tag has no effect when target is in {edit, modified}
2191: #
1.167 www 2192: sub start_languageblock {
1.201 albertel 2193: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 2194:
1.500 foxr 2195: my $result = '';
1.167 www 2196:
1.339 albertel 2197: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2198: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 2199: my $include = $token->[2]->{'include'};
2200: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 2201: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 2202:
2203: # This should not even happen, since we should at least have the server language
2204:
2205: if (!$preferred_languages[0]) {
2206: $preferred_languages[0]='en';
2207: }
2208:
2209: # Now loop over all languages in order of preference
2210:
2211: my $render;
1.398 www 2212: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 2213:
2214: # If neither include/nor exlude is present the block is going
2215: # to get rendered.
2216:
1.399 www 2217: my $found=0;
1.500 foxr 2218: $render=1;
2219:
2220: # If include is specified, don't render the block
2221: # unless the preferred language is included in the set.
2222:
1.398 www 2223: if ($include) {
1.500 foxr 2224: $render=0;
1.398 www 2225: foreach my $included_language (split(/\,/,$include)) {
2226: if ($included_language eq $preferred_language) {
1.500 foxr 2227: $render=1;
1.399 www 2228: $found=1;
1.500 foxr 2229: last; # Only need to find the first.
1.398 www 2230: }
2231: }
2232: }
1.500 foxr 2233: # Do we have an exclude argument?
2234: # If so, and one of the languages matches a preferred language
2235: # inhibit rendering the block. Note that in the pathalogical case the
2236: # author has specified a preferred language in both the include and exclude
2237: # attribte exclude is preferred.
2238:
1.398 www 2239: if ($exclude) {
1.500 foxr 2240: $render=1;
1.398 www 2241: foreach my $excluded_language (split(/\,/,$exclude)) {
2242: if ($excluded_language eq $preferred_language) {
1.500 foxr 2243: $render=0;
1.399 www 2244: $found=1;
1.500 foxr 2245: last; # Only need to find the first.
1.398 www 2246: }
2247: }
2248: }
1.500 foxr 2249: if ($found) {
2250: last; # Done on any match of include or exclude.
2251: }
1.398 www 2252: }
1.500 foxr 2253: # If $render not true skip the entire block until </languageblock>
2254: #
2255:
2256: if ( ! $render ) {
1.201 albertel 2257: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
2258: $style);
2259: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2260: }
1.500 foxr 2261: # If $render is true, we've not skipped the contents of the <languageglock>
2262: # and the normal loncapa processing flow will render it as a matter of course.
2263:
1.167 www 2264: } elsif ($target eq 'edit') {
2265: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2266: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 2267: $token,40);
1.211 albertel 2268: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 2269: $token,40);
2270: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2271: } elsif ($target eq 'modified') {
2272: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 2273: $safeeval,'include',
2274: 'exclude');
1.167 www 2275: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2276: }
2277: return $result;
2278: }
2279:
2280: sub end_languageblock {
1.170 www 2281: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2282: my $result;
1.201 albertel 2283: if ($target eq "edit") {
1.170 www 2284: $result.= &Apache::edit::tag_end($target,$token,'');
2285: }
2286: return $result;
2287: }
1.500 foxr 2288: # languagblock specific tags:
2289: {
2290: # For chunks of a resource that has translations, this hash contains
2291: # the translations available indexed by language name.
2292: #
2293:
2294: my %available_texts;
1.170 www 2295:
1.500 foxr 2296: # <translated> starts a block of a resource that has multiple translations.
2297: # See the <lang> tag as well.
2298: # When </translated> is encountered if there is a translation for the
2299: # currently preferred language, that is rendered inthe web/tex/webgrade
2300: # targets. Otherwise, the default text is rendered.
2301: #
2302: # Note that <lang> is only registered for the duration of the
2303: # <translated>...</translated> block
2304: #
2305: # Pathalogical case handling:
2306: # - If there is no <lang> that specifies a 'default' and there is no
2307: # translation that matches a preferred language, nothing is rendered.
2308: # - Nested <translated>...</translated> might be linguistically supported by
2309: # XML due to the stack nature of tag registration(?) however the rendered
2310: # output will be incorrect because there is only one %available_texts
2311: # has and end_translated clears it.
2312: # - Material outside of a <lang>...</lang> block within the
2313: # <translated>...<translated> block won't render either e.g.:
2314: # <translated>
2315: # The following will be in your preferred langauge:
2316: # <lang which='en'>
2317: # This section in english
2318: # </lang>
2319: # <lang which='sgeiso'>
2320: # Hier es ist auf Deutsch.
2321: # </lang>
2322: # <lang which='sfriso'>
2323: # En Francais
2324: # </lang>
2325: # </translated>
2326: #
2327: # The introductory text prior to the first <lang> tag is not rendered.
2328: #
1.397 albertel 2329: sub start_translated {
2330: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2331: &Apache::lonxml::register('Apache::structuretags',('lang'));
2332: undef(%available_texts);
2333: }
2334:
2335: sub end_translated {
2336: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2337: my $result;
2338: #show the translation on viewable targets
2339: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
2340: # or non-viewable targets, if it's embedded in something that
2341: # wants the output
2342: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
2343: && &Apache::lonxml::in_redirection() ) ) {
2344: my @possibilities = keys(%available_texts);
2345: my $which =
2346: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 2347: if ($target eq 'tex') {
2348: $result = &select_hyphenation($which);
2349: }
2350: $result .= $available_texts{$which};
2351: if ($target eq 'tex') {
2352: $result .= &select_metadata_hyphenation(); # Restore original language.
2353: }
1.397 albertel 2354: }
2355: undef(%available_texts);
2356: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
2357: return $result;
2358: }
2359:
1.500 foxr 2360: # <lang [which='language-name'] [other='lang1,lang2...']>
2361: # Specifies that the block contained within it is a translation
2362: # for a specific language specified by the 'which' attribute. The
2363: # 'other' attribute can be used by itself or in conjunction with
2364: # which to specify this tag _may_ be used as a translation for some
2365: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
2366: # specifying that the block provides a translation for US (primary)
2367: # Canadian, Australian and UK Englush.
2368: #
2369: # Comment: this seems a bit silly why not just support a list of languages
2370: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
2371: #
2372: # Effect:
2373: # The material within the <lang>..</lang> block is stored in the
2374: # specified set of $available_texts hash entries, the appropriate one
2375: # is selected at </translated> time.
2376: #
2377: # Pathalogical case handling:
2378: # If a language occurs multiple times within a <translated> block,
2379: # only the last one is rendered e.g.:
2380: #
2381: # <translated>
2382: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
2383: # Red green color blindness is quite common affecting about 7.8% of
2384: # the male population, but onloy about .65% of the female population.
2385: # </lang>
2386: # Red green colour blindness is quite common affecting about 7.8% of
2387: # the male population, but onloy about .65% of the female population.
2388: # <lang which='seniso', other='senisoCA,senisoAU'>
2389: # </translated>
2390: #
2391: # renders the correct spelling of color (colour) for people who have specified
2392: # a preferred language that is one of the British Commonwealth languages
2393: # even though those are also listed as valid selections for the US english
2394: # <lang> block.
2395: #
1.397 albertel 2396: sub start_lang {
2397: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2398: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2399: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2400: &Apache::lonxml::startredirection();
2401: }
2402: return '';
2403: }
2404:
2405: sub end_lang {
2406: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2407: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2408: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2409: my $result = &Apache::lonxml::endredirection();
2410: my $which = &Apache::lonxml::get_param('which',$parstack,
2411: $safeeval);
1.431 raeburn 2412: if ($which=~/\w/) {
2413: $available_texts{$which} = $result;
2414: }
2415: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
2416: $safeeval);
2417: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
2418: if ($language=~/\w/) {
2419: $available_texts{$language} = $result;
2420: }
1.427 bisitz 2421: }
2422:
1.397 albertel 2423: }
2424: return '';
2425: }
1.500 foxr 2426: } # end langauge block specific tags.
2427:
1.397 albertel 2428:
1.170 www 2429: sub start_instructorcomment {
1.201 albertel 2430: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 2431:
2432: my $result;
2433:
1.339 albertel 2434: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2435: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 2436: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 2437: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 2438: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
2439: $parser,$style);
1.170 www 2440: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2441: }
2442: $result='';
2443: } elsif ($target eq 'edit') {
2444: $result .=&Apache::edit::tag_start($target,$token);
2445: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2446: }
2447: return $result;
2448: }
2449:
2450: sub end_instructorcomment {
1.159 albertel 2451: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2452: my $result;
2453: if ($target eq "edit") {
2454: $result.= &Apache::edit::tag_end($target,$token,'');
2455: }
2456: return $result;
1.4 tsai 2457: }
2458:
2459: sub start_while {
1.326 albertel 2460: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2461:
1.160 albertel 2462: my $result;
1.339 albertel 2463: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2464: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2465: my $code = $token->[2]->{'condition'};
1.4 tsai 2466:
1.160 albertel 2467: push( @Apache::structuretags::whileconds, $code);
2468: if (!$Apache::lonxml::default_homework_loaded) {
2469: &Apache::lonxml::default_homework_load($safeeval);
2470: }
2471: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2472: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2473: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2474: push( @Apache::structuretags::whileline, $token->[5]);
2475: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2476: if ( $result ) {
2477: &Apache::lonxml::newparser($parser,\$bodytext);
2478: }
2479: } elsif ($target eq 'edit') {
2480: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2481: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2482: $token,40);
2483: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2484: } elsif ($target eq 'modified') {
2485: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2486: $safeeval,'condition');
2487: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2488: }
1.160 albertel 2489: return $result;
1.4 tsai 2490: }
2491:
2492: sub end_while {
1.159 albertel 2493: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2494: my $result;
2495:
1.339 albertel 2496: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2497: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2498: my $code = pop(@Apache::structuretags::whileconds);
2499: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2500: my $line = pop(@Apache::structuretags::whileline);
2501: my $return = &Apache::run::run($code,$safeeval);
2502: my $starttime=time;
2503: my $error=0;
2504: while ($return) {
2505: if (time-$starttime >
2506: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2507: $return = 0; $error=1; next;
1.161 albertel 2508: }
2509: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2510: if ($target eq 'grade' || $target eq 'answer' ||
2511: $target eq 'analyze') {
2512: # grade/answer/analyze should produce no output but if we
2513: # are redirecting, the redirecter should know what to do
2514: # with the output
2515: if (!$Apache::lonxml::redirection) { undef($result); }
2516: }
1.161 albertel 2517: $return = &Apache::run::run($code,$safeeval);
2518: }
1.512.2.5 raeburn 2519: if ($error) {
2520: &Apache::lonxml::error(
2521: '<pre>'
2522: .&mt('Code ran too long. It ran for more than [_1] seconds.',
2523: $Apache::lonnet::perlvar{'lonScriptTimeout'})
2524: .&mt('This occurred while running <while> on line [_1].',
2525: $line)
2526: .'</pre>');
2527: }
1.160 albertel 2528: } elsif ($target eq "edit") {
2529: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2530: }
1.160 albertel 2531: return $result;
1.1 albertel 2532: }
1.6 tsai 2533:
1.160 albertel 2534: # <randomlist show="1">
1.6 tsai 2535: # <tag1>..</tag1>
2536: # <tag2>..</tag2>
2537: # <tag3>..</tag3>
1.160 albertel 2538: # ...
1.6 tsai 2539: # </randomlist>
2540: sub start_randomlist {
1.326 albertel 2541: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2542: my $result;
1.339 albertel 2543: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2544: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2545: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2546: my $b_parser= HTML::LCParser->new(\$body);
2547: $b_parser->xml_mode(1);
2548: $b_parser->marked_sections(1);
1.159 albertel 2549: my $b_tok;
2550: my @randomlist;
2551: my $list_item;
2552: while($b_tok = $b_parser->get_token() ) {
2553: if($b_tok->[0] eq 'S') { # start tag
2554: # get content of the tag until matching end tag
2555: # get all text upto the matching tag
2556: # and push the content into @randomlist
2557: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2558: $b_parser);
2559: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2560: push(@randomlist,$list_item);
2561: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2562: # $list_item</b>";
2563: }
2564: if($b_tok->[0] eq 'T') { # text
2565: # what to do with text in between tags?
2566: # print "<b>TEXT $b_tok->[1]</b><br />";
2567: }
2568: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2569: # print "<b>END-TAG $b_tok->[1]</b><br />";
2570: # }
2571: }
1.303 albertel 2572: if (@randomlist) {
2573: my @idx_arr = (0 .. $#randomlist);
1.512.2.14 raeburn 2574: if ($env{'form.code_for_randomlist'}) {
2575: &Apache::structuretags::shuffle(\@idx_arr,$target);
2576: undef($env{'form.code_for_randomlist'});
2577: } else {
2578: &Apache::structuretags::shuffle(\@idx_arr);
2579: }
1.303 albertel 2580: my $bodytext = '';
2581: my $show=$#randomlist;
2582: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2583: $showarg--;
2584: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2585: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2586: my @currlist;
2587: my $part = $Apache::inputtags::part;
2588: if ($part ne '') {
2589: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2590: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2591: if (!(grep(/^\Q$part\E$/,@currlist))) {
2592: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2593: }
2594: } else {
2595: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2596: }
2597: }
2598: }
1.512.2.9 raeburn 2599: for my $i (0 .. $show) {
2600: $bodytext .= "$randomlist[ $idx_arr[$i] ]";
1.303 albertel 2601: }
2602: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2603: }
2604: } elsif ($target eq 'edit' ) {
2605: $result .=&Apache::edit::tag_start($target,$token);
2606: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2607: $token,5);
2608: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2609: } elsif ($target eq 'modified' ) {
2610: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2611: $safeeval,'show');
2612: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2613: }
2614: return $result;
1.7 tsai 2615: }
2616:
2617: sub shuffle {
1.512.2.14 raeburn 2618: my ($a,$target) = @_;
1.7 tsai 2619: my $i;
1.303 albertel 2620: if (ref($a) eq 'ARRAY' && @$a) {
1.512.2.14 raeburn 2621: &Apache::response::pushrandomnumber(undef,$target);
1.159 albertel 2622: for($i=@$a;--$i;) {
2623: my $j=int(&Math::Random::random_uniform() * ($i+1));
2624: next if $i == $j;
2625: @$a[$i,$j] = @$a[$j,$i];
2626: }
1.251 albertel 2627: &Apache::response::poprandomnumber();
1.7 tsai 2628: }
1.6 tsai 2629: }
2630:
2631: sub end_randomlist {
1.159 albertel 2632: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2633: my $result;
2634: if ($target eq 'edit' ) {
2635: $result=&Apache::edit::tag_end($target,$token,
2636: 'End Randomly Parsed Block');
2637: }
2638: return $result;
1.6 tsai 2639: }
2640:
1.283 albertel 2641: sub ordered_show_check {
2642: my $last_part=$Apache::inputtags::partlist[-2];
2643: my $in_order=
2644: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2645: my $in_order_show=1;
2646: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2647: $in_order_show=&Apache::response::check_status($last_part);
2648: }
2649: return $in_order_show;
2650: }
2651:
1.469 www 2652:
2653: sub start_startpartmarker {
2654: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2655: my $result='';
2656: if ($target eq 'edit') {
2657: $result=&Apache::edit::tag_start($target,$token);
2658: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2659: $result.=&Apache::edit::end_table();
2660:
2661: }
2662: return $result;
2663: }
2664:
2665: sub end_startpartmarker {
2666: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2667: my @result;
2668: if ($target eq 'edit') { $result[1]='no'; }
2669: return @result;
2670: }
2671:
2672: sub start_endpartmarker {
2673: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2674: my $result='';
2675: if ($target eq 'edit') {
2676: $result=&Apache::edit::tag_start($target,$token);
2677: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2678: $result.=&Apache::edit::end_table();
2679:
2680: }
2681: return $result;
2682: }
2683:
2684: sub end_endpartmarker {
2685: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2686: my @result;
2687: if ($target eq 'edit') { $result[1]='no'; }
2688: return @result;
2689: }
2690:
2691:
2692:
2693:
2694:
1.11 albertel 2695: sub start_part {
1.326 albertel 2696: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2697: if (!$Apache::lonxml::metamode) {
2698: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2699: # duedates.
2700: }
1.159 albertel 2701: my $result='';
1.386 albertel 2702: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2703: $Apache::inputtags::part=$id;
1.177 albertel 2704: push(@Apache::inputtags::partlist,$id);
1.512.2.10 raeburn 2705: $Apache::inputtags::leniency='';
1.177 albertel 2706: @Apache::inputtags::response=();
1.159 albertel 2707: @Apache::inputtags::previous=();
2708: @Apache::inputtags::previous_version=();
1.405 albertel 2709: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2710: &Apache::response::reset_params();
2711:
1.159 albertel 2712: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2713: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2714: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.512.2.9 raeburn 2715: if ($Apache::lonhomework::type eq 'randomizetry') {
2716: my $rndseed=&setup_rndseed($safeeval,$target);
2717: if (($target eq 'grade') && &Apache::response::submitted()) {
2718: $Apache::lonhomework::results{"resource.$id.rndseed"}=$rndseed;
2719: }
2720: } elsif (($target eq 'grade') && &Apache::response::submitted()) {
2721: $Apache::lonhomework::results{"resource.$id.rndseed"}=$Apache::lonhomework::rawrndseed;
2722: }
1.283 albertel 2723: my $in_order_show=&ordered_show_check();
1.214 albertel 2724: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2725: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2726: &Apache::run::run($expression,$safeeval);
1.159 albertel 2727:
2728: if ($target eq 'meta') {
1.224 www 2729: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2730: return &Apache::response::mandatory_part_meta.
2731: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2732: } elsif ($target eq 'web' || $target eq 'grade' ||
2733: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2734: if ($hidden || !$in_order_show) {
1.326 albertel 2735: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2736: } else {
2737: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2738: push (@Apache::inputtags::status,$status);
2739: my $expression='$external::datestatus="'.$status.'";';
2740: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2741: &Apache::run::run($expression,$safeeval);
1.284 albertel 2742: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2743: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2744: }
1.216 albertel 2745: if (( $status eq 'CLOSED' ) ||
2746: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2747: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2748: ( $status eq 'BANNED') ||
2749: ( $status eq 'UNAVAILABLE') ||
2750: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2751: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2752: $style);
1.159 albertel 2753: if ( $target eq "web" ) {
1.211 albertel 2754: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2755: } elsif ( $target eq 'tex' ) {
1.284 albertel 2756: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2757: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2758: } else {
1.211 albertel 2759: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2760: }
1.159 albertel 2761: }
2762: } else {
2763: if ($target eq 'tex') {
1.284 albertel 2764: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2765: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2766: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2767: } else {
2768: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2769: }
1.195 sakharuk 2770: }
1.159 albertel 2771: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2772: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.512.2.9 raeburn 2773: my @allkeys = split(/,/,$allkeys);
1.222 sakharuk 2774: my $allow_print_points = 0;
2775: foreach my $partial_key (@allkeys) {
1.230 albertel 2776: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2777: if ($1 ne '0') {$allow_print_points=1;}
2778: }
2779: }
1.275 albertel 2780: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2781: if (defined($maxtries) && $maxtries < 0) {
2782: $allow_print_points=0;
2783: }
1.302 albertel 2784: if (lc($env{'course.'.$env{'request.course.id'}.
2785: '.disableexampointprint'}) eq 'yes') {
2786: $allow_print_points=0;
2787: }
1.463 foxr 2788: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2789: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2790:
2791: }
1.233 www 2792: } elsif ($target eq 'web') {
1.479 raeburn 2793: if ($status eq 'CAN_ANSWER') {
2794: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2795: my $num = scalar(@Apache::inputtags::partlist)-1;
1.512.2.21 raeburn 2796: if ((($Apache::lonhomework::default_type eq 'randomizetry') ||
2797: ($Apache::lonhomework::randomizetrypart)) &&
2798: ($Apache::lonhomework::type ne 'randomizetry')) {
2799: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2800: } elsif ($Apache::lonhomework::type eq 'randomizetry') {
2801: $Apache::lonhomework::randomizetrypart = 1;
2802: my $reqtries = &Apache::lonnet::EXT("resource.$id.randomizeontries");
1.479 raeburn 2803: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2804: }
2805: }
1.475 raeburn 2806: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2807: }
2808: }
2809: }
2810: } elsif ($target eq 'edit') {
2811: $result.=&Apache::edit::tag_start($target,$token);
2812: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2813: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2814: ' '.
2815: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2816: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2817: } elsif ($target eq 'modified') {
2818: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2819: $safeeval,'id','display');
1.159 albertel 2820: if ($constructtag) {
1.225 albertel 2821: #limiting ids to only letters numbers, and space
1.224 www 2822: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2823: $result = &Apache::edit::rebuild_tag($token);
2824: }
2825: }
2826: return $result;
1.11 albertel 2827: }
2828:
2829: sub end_part {
1.159 albertel 2830: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2831: &Apache::lonxml::debug("in end_part $target ");
2832: my $status=$Apache::inputtags::status['-1'];
2833: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2834: my $in_order_show=&ordered_show_check();
1.321 albertel 2835: my $result;
2836: if (!$Apache::lonxml::metamode) {
2837: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2838: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2839: }
1.312 albertel 2840: if ($target eq 'grade') {
1.249 albertel 2841: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2842: !$hidden && $in_order_show) {
1.311 foxr 2843: $result.=&Apache::inputtags::grade;
1.249 albertel 2844: } else {
2845: # move any submission data to .hidden
2846: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2847: }
1.283 albertel 2848: } elsif (($target eq 'web' || $target eq 'tex') &&
2849: !$hidden && $in_order_show) {
1.159 albertel 2850: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2851: $target);
1.490 raeburn 2852: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2853: ($env{'form.grade_imsexport'})) {
1.212 albertel 2854: $gradestatus='';
2855: }
1.311 foxr 2856: $result.=$gradestatus;
1.265 sakharuk 2857: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2858: } elsif ($target eq 'edit') {
1.311 foxr 2859: $result.=&Apache::edit::end_table();
1.322 albertel 2860: } elsif ($target eq 'modified') {
2861: $result .= $token->[2];
1.159 albertel 2862: }
2863: pop @Apache::inputtags::status;
2864: $Apache::inputtags::part='';
1.512.2.10 raeburn 2865: $Apache::inputtags::leniency='';
1.295 albertel 2866: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2867: return $result;
1.11 albertel 2868: }
1.1 albertel 2869:
1.25 albertel 2870: sub start_preduedate {
1.326 albertel 2871: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2872: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2873: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2874: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2875: if (!$Apache::lonhomework::scantronmode &&
2876: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2877: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2878: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2879: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2880: }
1.24 albertel 2881: }
1.159 albertel 2882: return '';
1.24 albertel 2883: }
2884:
1.25 albertel 2885: sub end_preduedate {
1.159 albertel 2886: return '';
1.24 albertel 2887: }
2888:
1.369 foxr 2889: # In all the modes where <postanswerdate> text is
2890: # displayable, all we do is eat up the text between the start/stop
2891: # tags if the conditions are not right to display it.
1.25 albertel 2892: sub start_postanswerdate {
1.326 albertel 2893: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2894: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2895: &Apache::lonnet::allowed('pav',
2896: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2897: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2898: $target eq 'tex' ) {
1.300 albertel 2899: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2900: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2901: (($target eq 'tex') && !$pav)) {
1.326 albertel 2902: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2903: }
2904: }
2905: return '';
1.24 albertel 2906: }
2907:
1.25 albertel 2908: sub end_postanswerdate {
1.159 albertel 2909: return '';
1.24 albertel 2910: }
2911:
1.25 albertel 2912: sub start_notsolved {
1.326 albertel 2913: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2914: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2915: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2916: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2917: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2918: if ($gradestatus =~ /^correct/ &&
2919: &Apache::response::show_answer()) {
1.159 albertel 2920: &Apache::lonxml::debug("skipping");
1.326 albertel 2921: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2922: }
1.24 albertel 2923: }
1.159 albertel 2924: return '';
1.24 albertel 2925: }
2926:
1.25 albertel 2927: sub end_notsolved {
1.159 albertel 2928: return '';
1.24 albertel 2929: }
2930:
2931: sub start_solved {
1.326 albertel 2932: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2933: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2934: $target eq 'tex') {
2935: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2936: if ($gradestatus !~ /^correct/ ||
2937: !&Apache::response::show_answer()) {
1.326 albertel 2938: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2939: }
1.24 albertel 2940: }
1.159 albertel 2941: return '';
1.24 albertel 2942: }
2943:
2944: sub end_solved {
1.248 albertel 2945: return '';
2946: }
2947:
2948: sub start_problemtype {
1.326 albertel 2949: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2950: my $result;
1.339 albertel 2951: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2952: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2953: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2954: if (!defined($mode)) { $mode='show'; }
2955: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2956: my $found=0;
2957: foreach my $type (split(',',$for)) {
2958: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2959: }
2960: if ($mode eq 'show' && !$found) {
1.326 albertel 2961: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2962: }
2963: if ($mode eq 'hide' && $found) {
1.326 albertel 2964: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2965: }
2966: } elsif ($target eq 'edit') {
2967: $result .=&Apache::edit::tag_start($target,$token);
2968: $result.=&Apache::edit::select_arg('Mode:','mode',
2969: [['show','Show'],
2970: ['hide','Hide']]
2971: ,$token);
2972: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.512.2.2 raeburn 2973: [ ['exam','Exam/Quiz Problem'],
1.248 albertel 2974: ['survey','Survey'],
1.465 raeburn 2975: ['surveycred','Survey (with credit)'],
2976: ['anonsurvey','Anonymous Survey'],
2977: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2978: ['problem','Homework Problem'],
1.479 raeburn 2979: ['practice','Practice Problem'],
2980: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2981: ,$token);
2982: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2983: } elsif ($target eq 'modified') {
2984: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2985: $safeeval,'mode','for');
2986: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2987: }
2988: return $result;
2989: }
2990:
2991: sub end_problemtype {
1.159 albertel 2992: return '';
1.24 albertel 2993: }
1.34 albertel 2994:
2995: sub start_startouttext {
1.159 albertel 2996: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2997: my @result=(''.'');
2998: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2999:
3000: my $nesting =
3001: &Apache::lonxml::set_state('outtext',
3002: &Apache::lonxml::get_state('outtext')+1);
3003: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
3004: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
3005: }
1.159 albertel 3006: return (@result);
1.34 albertel 3007: }
1.159 albertel 3008:
1.34 albertel 3009: sub end_startouttext {
1.326 albertel 3010: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 3011: my $result='';
3012: my $text='';
3013: if ($target eq 'edit') {
1.424 foxr 3014: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 3015: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.512.2.11 raeburn 3016: $result.=&Apache::edit::start_table($token)."<tr><td>".&Apache::loncommon::insert_folding_button()
3017: ." ".&mt('Text Block')."</td>"
1.438 bisitz 3018: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 3019: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 3020: .'</span></td>'
1.512.2.12 raeburn 3021: .'<td><span id="math_'.$areaid.'">';
3022: if ($env{'environment.nocodemirror'}) {
3023: $result.=&Apache::lonhtmlcommon::dragmath_button($areaid,1);
3024: } else {
3025: $result.=' ';
3026: }
3027: $result.='</span></td>'
1.474 raeburn 3028: .'<td>'
3029: .&Apache::edit::insertlist($target,$token)
3030: .'</td>'
1.512.2.5 raeburn 3031: .'<td class="LC_edit_problem_latexhelper">' .
1.474 raeburn 3032: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 3033: &Apache::edit::end_row().
1.362 albertel 3034: &Apache::edit::start_spanning_row()."\n".
1.255 www 3035: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 3036: }
3037: if ($target eq 'modified') {
1.219 albertel 3038: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 3039: }
3040: if ($target eq 'tex') {
3041: $result .= '\noindent ';
3042: }
3043: return $result;
1.34 albertel 3044: }
1.159 albertel 3045:
1.34 albertel 3046: sub start_endouttext {
1.159 albertel 3047: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3048: my $result='';
3049: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
3050: if ($target eq "modified") {
3051: $result='<endouttext />'.
1.377 albertel 3052: &Apache::edit::handle_insertafter('startouttext');
3053: }
1.404 albertel 3054:
3055: my $nesting =
3056: &Apache::lonxml::set_state('outtext',
3057: &Apache::lonxml::get_state('outtext')-1);
3058: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
3059: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
3060: &Apache::lonxml::set_state('outtext', 0);
3061: }
1.159 albertel 3062: return $result;
1.34 albertel 3063: }
1.159 albertel 3064:
1.34 albertel 3065: sub end_endouttext {
1.159 albertel 3066: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3067: my @result=('','');
3068: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
3069: return (@result);
1.34 albertel 3070: }
1.159 albertel 3071:
1.45 albertel 3072: sub delete_startouttext {
1.326 albertel 3073: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
3074: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 3075: my $text=$$parser['-1']->get_text("/endouttext");
3076: my $ntoken=$$parser['-1']->get_token();
3077: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
3078: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
3079: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
3080: # they did the last time round
3081: &Apache::lonxml::increasedepth($ntoken);
3082: &Apache::lonxml::decreasedepth($ntoken);
3083: return 1;
1.193 www 3084: }
3085:
3086: sub start_simpleeditbutton {
3087: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3088: my $result='';
1.284 albertel 3089: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 3090: ($target eq 'web') &&
1.330 albertel 3091: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 3092: my $url=$env{'request.noversionuri'};
1.193 www 3093: $url=~s/\?.*$//;
1.367 albertel 3094: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 3095: # Warning makes more sense and is more important on edit screen
1.442 bisitz 3096: # $result='<p class="LC_warning">'
3097: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
3098: # .&Apache::loncommon::help_open_topic('Caching')
3099: # .'</p>';
1.486 www 3100: $result.=&Apache::loncommon::head_subbox(
3101: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 3102: .&Apache::lonhtmlcommon::add_item_funclist(
3103: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
3104: .&mt('Edit').'</a>')
1.486 www 3105: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 3106:
1.193 www 3107: }
3108: return $result;
3109: }
3110:
3111: sub end_simpleeditbutton {
3112: return '';
1.45 albertel 3113: }
1.34 albertel 3114:
1.428 raeburn 3115: sub practice_problem_header {
3116: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
3117: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
3118: '</span>';
3119: }
3120:
1.479 raeburn 3121: sub randomizetry_problem_header {
1.512.2.21 raeburn 3122: my ($problemstatus,$reqtries,$symb) = @_;
1.479 raeburn 3123: my ($header,$text);
3124: if ($reqtries > 1) {
3125: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
3126: if (($problemstatus eq 'no') ||
3127: ($problemstatus eq 'no_feedback_ever')) {
3128: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3129: } else {
3130: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3131: }
3132: } else {
3133: $header = &mt('New Problem Variation Each Try');
3134: if (($problemstatus eq 'no') ||
3135: ($problemstatus eq 'no_feedback_ever')) {
3136: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
3137:
3138: } else {
3139: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
3140: }
3141: }
1.512.2.21 raeburn 3142: if (($env{'request.state'} eq "construct") || ($symb eq '')) {
3143: return '<div class="LC_info" id="LC_randomizetry_header" style="display:none">'.
3144: '<h3>'.$header.'</h3><span class="LC_info">'.$text.'</span><hr /></div>';
3145: } else {
3146: return '<h3 class="LC_info">'.$header.'</h3>'.
3147: '<span class="LC_info">'.$text.'</span><hr />';
3148: }
1.479 raeburn 3149: }
3150:
3151: sub randomizetry_part_header {
3152: my ($problemstatus,$reqtries,$num) = @_;
3153: my ($header,$text);
3154: if ($reqtries eq 'none') {
3155: $header = &mt('No Question Variation');
3156: $text = &mt('For this question there will no new variation after a try.');
3157: } elsif ($reqtries > 1) {
3158: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
3159: if (($problemstatus eq 'no') ||
3160: ($problemstatus eq 'no_feedback_ever')) {
3161: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3162: } else {
3163: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3164: }
3165: } else {
3166: $header = &mt('New Question Variation For Each Try');
3167: if (($problemstatus eq 'no') ||
3168: ($problemstatus eq 'no_feedback_ever')) {
3169: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
3170: } else {
3171: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
3172: }
3173: }
3174: my $output;
3175: if ($num > 1) {
3176: $output .= '<hr />';
3177: }
3178: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
3179: '<span class="LC_info">'.$text.'</span><br /><br />';
3180: return $output;
3181: }
3182:
1.1 albertel 3183: 1;
3184: __END__
1.435 jms 3185:
3186: =pod
3187:
3188: =back
3189:
3190: =cut
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