Annotation of loncom/homework/structuretags.pm, revision 1.512.2.20
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.512.2.20! raeburn 4: # $Id: structuretags.pm,v 1.512.2.19 2019/10/31 16:14:09 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 = $Apache::inputtags::part;
655: if (ref($probpartlist) eq 'ARRAY') {
656: if ((@{$probpartlist} == 1) && ($probpartlist->[0] ne $Apache::inputtags::part)) {
657: $partfortries = $probpartlist->[0];
658: }
659: }
660: $numtries = $Apache::lonhomework::history{"resource.$partfortries.tries"};
661: $reqtries = &Apache::lonnet::EXT("resource.$partfortries.randomizeontries");
662: }
1.512.2.14 raeburn 663: if (($env{'request.state'} eq "construct")
664: || ($symb eq '')
665: || ($Apache::lonhomework::type eq 'practice')
666: || ($Apache::lonhomework::history{'resource.CODE'})
667: || (($env{'form.code_for_randomlist'}) && ($target eq 'analyze'))) {
1.316 www 668: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 669: ['rndseed']);
1.284 albertel 670: $rndseed=$env{'form.rndseed'};
1.159 albertel 671: if (!$rndseed) {
1.162 albertel 672: $rndseed=$Apache::lonhomework::history{'rndseed'};
673: if (!$rndseed) {
674: $rndseed=time;
675: }
1.512.2.14 raeburn 676: unless ($env{'form.code_for_randomlist'}) {
677: $env{'form.rndseed'}=$rndseed;
678: }
1.162 albertel 679: }
1.512.2.20! raeburn 680: if ((($env{'request.state'} eq "construct") || ($symb eq '')) &&
1.479 raeburn 681: ($Apache::lonhomework::type eq 'randomizetry')) {
1.512.2.19 raeburn 682: if ($numtries) {
683: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
684: my $inc = int($numtries/$reqtries);
685: $rndseed += $inc;
686: } else {
687: $rndseed += $numtries;
688: }
1.479 raeburn 689: }
1.480 raeburn 690: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 691: }
1.374 albertel 692: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
693: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 694: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 695: srand(time);
696: $rndseed=int(rand(2100000000));
1.284 albertel 697: $env{'form.rndseed'}=$rndseed;
698: delete($env{'form.resetdata'});
699: delete($env{'form.newrandomization'});
1.159 albertel 700: }
1.488 www 701: $rndseed=~s/\,/\:/g;
702: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 703: if (defined($rndseed)) {
704: my ($c1,$c2)=split(/\:/,$rndseed);
705: unless ($c2) { $c2=0; }
706: unless (($c1==int($c1)) && ($c2==int($c2))) {
707: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
708: }
1.187 albertel 709: }
1.512.2.14 raeburn 710: if (($env{'form.code_for_randomlist'}) && ($target eq 'analyze')) {
711: $env{'form.CODE'} = $env{'form.code_for_randomlist'};
712: $rndseed=&Apache::lonnet::rndseed();
713: undef($env{'form.CODE'});
714: } elsif ($Apache::lonhomework::history{'resource.CODE'}) {
1.247 albertel 715: $rndseed=&Apache::lonnet::rndseed();
716: }
1.479 raeburn 717: $set_safespace = 1;
718: } elsif ($questiontype eq 'randomizetry') {
719: if ($target eq 'analyze') {
720: if (defined($env{'form.grade_rndseed'})) {
721: $rndseed = $env{'form.grade_rndseed'};
722: }
723: }
724: unless (($target eq 'analyze') && (defined($rndseed))) {
725: $rndseed=&Apache::lonnet::rndseed();
1.512.2.19 raeburn 726: my $curr_try = $numtries;
1.479 raeburn 727: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
728: $curr_try ++;
729: }
730: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
731: $rndseed = $1;
732: }
733: if ($curr_try) {
734: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
735: my $inc = int(($curr_try-1)/$reqtries);
736: $rndseed += $inc;
737: } else {
738: $rndseed += $curr_try;
739: }
740: }
741: }
742: $set_safespace = 1;
1.512.2.9 raeburn 743: if ($target eq 'grade') {
744: $Apache::lonhomework::rawrndseed = $rndseed;
745: }
1.479 raeburn 746: }
747: if ($set_safespace) {
748: if ($safeeval) {
749: &Apache::lonxml::debug("Setting rndseed to $rndseed");
750: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
751: }
752: }
753: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
754: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 755: }
756: return $rndseed;
1.105 albertel 757: }
758:
1.268 albertel 759: sub remember_problem_state {
760: return '
1.284 albertel 761: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
762: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
763: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 764: }
765:
1.487 www 766: sub problem_edit_action_button {
767: my ($name,$action,$accesskey,$text,$flag)=@_;
768: my $actionscript="setmode(this.form,'$action')";
769: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
770: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
771: }
772:
1.423 www 773: sub problem_edit_buttons {
1.487 www 774: my ($mode)=@_;
1.512.2.11 raeburn 775: # Buttons that save
776: my $result = '<div style="float:right">';
777: if ($mode eq 'editxml') {
778: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
779: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
780: } else {
781: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
782: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
783: }
784: $result.="\n</div>\n";
1.487 www 785: # Buttons that do not save
1.512.2.11 raeburn 786: $result .= '<div>'.
1.487 www 787: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
788: if ($mode eq 'editxml') {
789: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
790: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
1.512.2.11 raeburn 791: if ($env{'environment.nocodemirror'}) {
792: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
793: }
1.487 www 794: } else {
795: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
796: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
797: }
798: $result.="\n</div>";
799: return $result;
1.423 www 800: }
801:
802: sub problem_edit_header {
1.512.2.11 raeburn 803: my ($mode)=@_;
804: my $return = '<input type="hidden" name="submitted" value="edit" />'.
1.487 www 805: &remember_problem_state('edit').'
1.512.2.11 raeburn 806: <div class="LC_edit_problem_header">
807: <div class="LC_edit_problem_header_title">
808: '.&mt('Problem Editing').$mode.&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
809: </div><div class="LC_edit_actionbar" id="actionbar">'.
810: '<input type="hidden" name="problemmode" value="saveedit" />'.
811: &problem_edit_buttons();
812:
813: $return .= '</div></div>' . &Apache::lonxml::message_location();
814: $return .= '<link rel="stylesheet" href="/adm/codemirror/codemirror-combined.css" />
815: <script type="text/javascript" src="/adm/codemirror/codemirror-compressed-colorful.js"></script>';
816:
817: $return .= '<script type="text/javascript" src="/adm/jQuery/addons/jquery-scrolltofixed.js"></script>
818: <script type="text/javascript">
819: // unless internet explorer
820: if (!(window.navigator.appName == "Microsoft Internet Explorer" && (document.documentMode || document.compatMode))){
821: $(document).ready(
822: function() {
823: $(\'.LC_edit_actionbar\').scrollToFixed(
824: {
825: fixed: function(){
826: //$(this).find(\'.LC_edit_actionbar\').css(\'height\', \'31px\');
827: $(this).find(\'.LC_edit_actionbar\');
828: }
829: }
830: );
831: }
832: );
833: }
834: </script>
835: <table id="LC_edit_problem_colorful" border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
836: return $return;
1.105 albertel 837: }
838:
1.512.2.11 raeburn 839:
1.105 albertel 840: sub problem_edit_footer {
1.512.2.11 raeburn 841: my $resource = $env{'request.ambiguous'};
1.412 albertel 842: return '</td></tr></table><br />
843: <div class="LC_edit_problem_footer">
1.453 bisitz 844: <hr />'.
1.423 www 845: &problem_edit_buttons().'
1.459 bisitz 846: <hr style="clear:both;" />
1.512.2.11 raeburn 847: <script type="text/javascript">
848: restoreState("'.$resource.'");
849: restoreScrollPosition("'.$resource.'");
850: </script>
1.412 albertel 851: </div>
852: '.
1.342 albertel 853: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 854: }
855:
1.235 albertel 856: sub option {
857: my ($value,$name) = @_;
858: my $result ="<option value='".$value."' ";
1.284 albertel 859: if ($env{'form.'.$name} eq $value) {
1.235 albertel 860: $result.=" selected='on' ";
861: }
862: $result.='>';
863: return $result;
864: }
865:
1.105 albertel 866: sub problem_web_to_edit_header {
1.159 albertel 867: my ($rndseed)=@_;
1.406 albertel 868: my $result .= '<div class="LC_edit_problem_header">';
869:
870: if (!$Apache::lonhomework::parsing_a_task) {
871: $result .=
872: '<div class="LC_edit_problem_header_title">'.
873: &mt('Problem Testing').
874: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
875: '</div>';
876: } else {
877: $result .=
878: '<div class="LC_edit_problem_header_title">'.
879: &mt('Task Testing').
880: '</div>';
881: }
882:
1.315 albertel 883: my $show_all_foils_text =
884: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 885: &mt('Show All Instances')
886: : &mt('Show All Foils');
1.315 albertel 887:
1.452 bisitz 888: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
889: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 890: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 891: $show_all.= ' /> '.$show_all_foils_text
892: .'</label></span>';
1.406 albertel 893:
894:
1.384 albertel 895:
1.406 albertel 896: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 897: if (!$Apache::lonhomework::parsing_a_task) {
898: $result.="
1.406 albertel 899: <div class='LC_edit_problem_header_row1'>
900: <span class=\"LC_nobreak\">
1.405 albertel 901: ".&mt("Problem Status:")."
1.235 albertel 902: <select name='problemstate'>
1.270 albertel 903: <option value=''></option>
1.235 albertel 904: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
905: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
906: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
907: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
908: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
909: </select>
1.406 albertel 910: </span>
911: <span class=\"LC_nobreak\">
1.405 albertel 912: ".&mt("Problem Type:")."
1.235 albertel 913: <select name='problemtype'>
1.270 albertel 914: <option value=''></option>
1.512.2.1 raeburn 915: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 916: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 917: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 918: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
919: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
920: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 921: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 922: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 923: </select>
1.406 albertel 924: </span>
925: $show_all
926: </div>
927: <div class='LC_edit_problem_header_row2'>
928: <span class=\"LC_nobreak\">
1.405 albertel 929: ".&mt("Feedback Mode:")."
1.235 albertel 930: <select name='problemstatus'>
931: <option value=''></option>
1.242 albertel 932: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.512.2.6 raeburn 933: ".&option('no', 'problemstatus').&mt("Don't Show Incorrect/Correct Feedback")."</option>
1.405 albertel 934: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 935: </select>
1.406 albertel 936: </span>
937: ";
938:
1.376 albertel 939: } elsif ($Apache::lonhomework::parsing_a_task) {
940: $result.="
1.406 albertel 941: <div class='LC_edit_problem_header_row1'>
942: <span class=\"LC_nobreak\">
1.405 albertel 943: ".&mt("Problem Status:")."
1.376 albertel 944: <select name='problemstate'>
945: <option value=''></option>
946: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
947: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
948: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
949: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
950: </select>
1.406 albertel 951: </span>
952: $show_all
953: ";
954: }
955: $result.='
956: <span class="LC_nobreak">
957: '.&mt('Apply style file: ').'
958: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
959: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
960: </span>
1.422 www 961: </div>
962: <div class="LC_edit_problem_header_row1">'.
963: &Apache::lonxml::renderingoptions().'
1.406 albertel 964: </div>
965: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
966: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
967: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
968: </div>
1.453 bisitz 969: <hr />
1.406 albertel 970: <div class="LC_edit_problem_header_randomize_row">
971: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
972: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 973: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 974: $rndseed.'"
975: onchange="javascript:document.lonhomework.changerandseed.click()" />';
976:
977: if (!$Apache::lonhomework::parsing_a_task) {
978: my $numtoanalyze=$env{'form.numtoanalyze'};
979: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 980: $result .= '<span class="LC_nobreak">'.
981: &mt('[_1] for [_2] versions.',
1.416 raeburn 982: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 983: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
984: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 985: $numtoanalyze.'" size="5" />').
986: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
987: '</span>';
988:
1.313 albertel 989: }
1.406 albertel 990:
991: $result.='
992: </div>
1.453 bisitz 993: <hr />
1.447 bisitz 994: <div>';
1.416 raeburn 995: $result.='<input type="hidden" name="problemmode" value="view" />';
996: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
997: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
998: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
999: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 1000: $result.='
1001: </div>
1.453 bisitz 1002: <hr />
1.409 albertel 1003: '.&Apache::lonxml::message_location().'
1.406 albertel 1004: </div>';
1.159 albertel 1005: return $result;
1.48 albertel 1006: }
1007:
1.65 albertel 1008: sub initialize_storage {
1.357 albertel 1009: my ($given_symb) = @_;
1.353 albertel 1010: undef(%Apache::lonhomework::results);
1011: undef(%Apache::lonhomework::history);
1.357 albertel 1012: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1013: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 1014:
1015: # anonymous users (CODEd exams) have no data
1016: if ($name eq 'anonymous'
1017: && !defined($domain)) {
1018: return;
1019: }
1020:
1.333 albertel 1021: if ($env{'request.state'} eq 'construct'
1022: || $symb eq ''
1023: || $Apache::lonhomework::type eq 'practice') {
1024:
1025: my $namespace = $symb || $env{'request.uri'};
1026: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 1027: ($env{'form.resetdata'} eq &mt('New Problem Variation')
1028: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 1029: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1030: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
1031: &Apache::lonxml::debug("Attempt reset");
1032: }
1.159 albertel 1033: %Apache::lonhomework::history=
1.333 albertel 1034: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.512.2.9 raeburn 1035: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1036: &Apache::lonxml::debug("Return message of $temp");
1037: } else {
1038: %Apache::lonhomework::history=
1039: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1040: }
1.353 albertel 1041:
1.159 albertel 1042: #ignore error conditions
1.512.2.9 raeburn 1043: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1044: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 1045: }
1046:
1.435 jms 1047: =pod
1048:
1049: =item finalize_storage()
1050:
1.512.2.9 raeburn 1051: Stores away the result hash to a student's environment;
1052: checks form.grade_ for specific values, otherwise stores
1053: to the running user's environment.
1054:
1055: &check_correctness_changes() is called in two circumstances
1056: in which the results hash is to be stored permanently, for
1057: grading triggered by a student's submission, where feedback on
1058: correctness is to be provided to the student.
1059:
1060: 1. Immediately prior to storing the results hash
1061:
1062: To handle the case where a student's submission (and award) were
1063: stored after history was retrieved in &initialize_storage(), e.g.,
1064: if a student submitted answers in quick succession (e.g., from
1065: multiple tabs). &Apache::inputtags::hidealldata() is called for
1066: any parts with out-of-order storage (i.e., correct then incorrect,
1067: where awarded >= 1 when correct).
1068:
1069: 2. Immediately after storing the results hash
1070:
1071: To handle the case where lond on the student's homeserver returns
1072: delay:N -- where N is the number of transactions between the last
1073: retrieved in &initialize_storage() and the last stored immediately
1074: before permanent storage of the current transaction via
1075: lond::store_handler(). &Apache::grades::makehidden() is called
1076: for any parts with out-of-order storage (i.e., correct then incorrect,
1077: where awarded >= 1 when correct).
1078:
1079: Will call &store_aggregates() to increment totals for attempts,
1080: students, and corrects, if running user has student role.
1.435 jms 1081:
1082: =cut
1083:
1084:
1.65 albertel 1085: sub finalize_storage {
1.357 albertel 1086: my ($given_symb) = @_;
1.159 albertel 1087: my $result;
1.289 albertel 1088: if (%Apache::lonhomework::results) {
1.323 albertel 1089: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
1090: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 1091: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1092: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 1093: if ($env{'request.state'} eq 'construct'
1094: || $symb eq ''
1095: || $Apache::lonhomework::type eq 'practice') {
1096: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 1097: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 1098: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 1099: $namespace,'',$domain,$name);
1.159 albertel 1100: &Apache::lonxml::debug('Construct Store return message:'.$result);
1101: } else {
1.512.2.9 raeburn 1102: my ($laststore,$checkedparts,@parts,%postcorrect);
1103: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1104: (!$Apache::lonhomework::scantronmode) && (!defined($env{'form.grade_symb'})) &&
1105: (!defined($env{'form.grade_courseid'}))) {
1106: if ($Apache::lonhomework::history{'version'}) {
1107: $laststore = $Apache::lonhomework::history{'version'}.'='.
1108: $Apache::lonhomework::history{'timestamp'};
1109: } else {
1110: $laststore = '0=0';
1111: }
1112: my %record = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1113: if ($record{'version'}) {
1114: my ($newversion,$oldversion,$oldtimestamp);
1115: if ($Apache::lonhomework::history{'version'}) {
1116: $oldversion = $Apache::lonhomework::history{'version'};
1117: $oldtimestamp = $Apache::lonhomework::history{'timestamp'};
1118: } else {
1119: $oldversion = 0;
1120: $oldtimestamp = 0;
1121: }
1122: if ($record{'version'} > $oldversion) {
1123: if ($record{'timestamp'} >= $oldtimestamp) {
1124: $laststore = $record{'version'}.'='.$record{'timestamp'};
1125: $newversion = $record{'version'} + 1;
1126: $checkedparts = 1;
1127: foreach my $key (keys(%Apache::lonhomework::results)) {
1128: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1129: my $part = $1;
1130: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1131: push(@parts,$part);
1132: }
1133: }
1134: }
1135: if (@parts) {
1136: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1137: \%record,\@parts,$newversion,
1138: $oldversion);
1139: if (@parts_to_hide) {
1140: foreach my $part (@parts_to_hide) {
1141: $postcorrect{$part} = 1;
1142: &Apache::inputtags::hidealldata($part);
1143: }
1144: }
1145: }
1146: }
1147: }
1148: }
1149: }
1.159 albertel 1150: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
1.512.2.9 raeburn 1151: $symb,$courseid,$domain,$name,$laststore);
1152: if ($result =~ /^delay\:(\d+)$/) {
1153: my $numtrans = $1;
1154: my ($oldversion) = split(/=/,$laststore);
1155: if ($numtrans) {
1156: my $newversion = $oldversion + 1 + $numtrans;
1157: my @possparts;
1158: if ($checkedparts) {
1159: foreach my $part (@parts) {
1160: unless ($postcorrect{$part}) {
1161: push(@possparts,$part);
1162: }
1163: }
1164: } else {
1165: foreach my $key (keys(%Apache::lonhomework::results)) {
1166: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1167: my $part = $1;
1168: unless ($postcorrect{$part}) {
1169: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1170: push(@possparts,$part);
1171: }
1172: }
1173: }
1174: }
1175: }
1176: if (@possparts) {
1177: my %newrecord = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1178: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1179: \%newrecord,\@possparts,$newversion,
1180: $oldversion);
1181: if (@parts_to_hide) {
1182: my $partslist = join(',',@parts_to_hide);
1183: &Apache::grades::makehidden($newversion,$partslist,\%newrecord,$symb,$domain,$name,1);
1184: }
1185: }
1186: }
1187: }
1.159 albertel 1188: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 1189: &store_aggregates($symb,$courseid);
1.159 albertel 1190: }
1.323 albertel 1191: } else {
1192: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 1193: }
1.159 albertel 1194: return $result;
1.65 albertel 1195: }
1196:
1.435 jms 1197: =pod
1198:
1.512.2.9 raeburn 1199: =item check_correctness_changes()
1200:
1201: For all parts for which current results contain a solved status
1202: of "incorrect_attempted", check if there was a transaction in which
1203: solved was set to "correct_by_student" in the time since the last
1204: transaction (retrieved when &initialize_storage() was called i.e.,
1205: when &start_problem() was called), unless:
1206: (a) questiontype parameter is set to survey or anonymous survey (+/- credit)
1207: (b) problemstatus is set to no or no_feedback_ever
1208: If such a transaction exists, and did not occur after "reset status"
1209: by a user with grading privileges, then the current transaction is an
1210: example of an out-of-order transaction (i.e., incorrect occurring after
1211: correct). Accordingly, the current transaction should be hidden.
1212:
1213: =cut
1214:
1215:
1216: sub check_correctness_changes {
1217: my ($symb,$courseid,$domain,$name,$record,$parts,$newversion,$oldversion) = @_;
1218: my @parts_to_hide;
1219: unless ((ref($record) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
1220: return @parts_to_hide;
1221: }
1222: if (@{$parts}) {
1223: my $usec;
1224: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1225: ($env{'request.course.id'} eq $courseid)) {
1226: $usec = $env{'request.course.sec'};
1227: } else {
1228: $usec = &Apache::lonnet::getsection($domain,$name,$courseid);
1229: }
1230: foreach my $id (@{$parts}) {
1231: next if (($Apache::lonhomework::results{'resource.'.$id.'.type'} =~ /survey/) ||
1232: (&Apache::lonnet::EXT("resource.$id.problemstatus",$symb,
1233: $domain,$name,$usec,undef,$courseid) =~ /^no/));
1234: my $reset;
1235: for (my $i=$newversion-1; $i>=$oldversion; $i--) {
1236: if (($record->{$i.':resource.'.$id.'.regrader'}) &&
1237: ($record->{$i.':resource.'.$id.'.tries'} eq '') &&
1238: ($record->{$i.':resource.'.$id.'.award'} eq '')) {
1239: $reset = 1;
1240: } elsif (($record->{$i.":resource.$id.solved"} eq 'correct_by_student') &&
1241: ($record->{$i.":resource.$id.awarded"} >= 1)) {
1242: unless ($reset) {
1243: push(@parts_to_hide,$id);
1244: last;
1245: }
1246: }
1247: }
1248: }
1249: }
1250: return @parts_to_hide;
1251: }
1252:
1253: =pod
1254:
1.435 jms 1255: item store_aggregates()
1256:
1257: Sends hash of values to be incremented in nohist_resourcetracker.db
1258: for the course. Increments total number of attempts, unique students
1259: and corrects for each part for an instance of a problem, as appropriate.
1260:
1261: =cut
1262:
1.285 raeburn 1263: sub store_aggregates {
1264: my ($symb,$courseid) = @_;
1.479 raeburn 1265: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 1266: my @parts;
1.288 albertel 1267: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
1268: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 1269: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 1270: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 1271: push(@parts, $1);
1.285 raeburn 1272: }
1273: }
1.286 albertel 1274: foreach my $part (@parts) {
1.470 raeburn 1275: if ($env{'request.role'} =~/^st/) {
1276: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
1277: eq 'APPROX_ANS' ||
1278: $Apache::lonhomework::results{'resource.'.$part.'.award'}
1279: eq 'EXACT_ANS') {
1280: $aggregate{$symb."\0".$part."\0correct"} = 1;
1281: }
1282: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1283: $aggregate{$symb."\0".$part."\0users"} = 1;
1284: } else {
1285: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1286: if ($last_reset) {
1287: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1288: $aggregate{$symb."\0".$part."\0users"} = 1;
1289: }
1290: }
1291: }
1292: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 1293: }
1.470 raeburn 1294: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 1295: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
1296: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
1297: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
1298: $randtrycounter{$symb."\0".$part} = 1;
1299: } else {
1300: $anoncounter{$symb."\0".$part} = 1;
1301: }
1.470 raeburn 1302: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
1303: if ($needsrelease) {
1304: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
1305: if ($curr_required eq '') {
1.471 raeburn 1306: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1307: } else {
1308: my ($currmajor,$currminor) = split(/\./,$curr_required);
1309: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
1310: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 1311: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1312: }
1.292 raeburn 1313: }
1314: }
1.285 raeburn 1315: }
1316: }
1.512.2.9 raeburn 1317: if (keys(%aggregate) > 0) {
1.289 albertel 1318: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 1319: $cdomain,$cname);
1320: }
1.472 raeburn 1321: if (keys(%anoncounter) > 0) {
1.481 raeburn 1322: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
1323: $cdomain,$cname);
1.472 raeburn 1324: }
1.479 raeburn 1325: if (keys(%randtrycounter) > 0) {
1.481 raeburn 1326: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
1327: $cdomain,$cname);
1.479 raeburn 1328: }
1.292 raeburn 1329: }
1.289 albertel 1330:
1.65 albertel 1331: sub checkout_msg {
1.211 albertel 1332: my %lt=&Apache::lonlocal::texthash(
1333: 'resource'=>'The resource needs to be checked out',
1334: '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.',
1335: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
1.512.2.1 raeburn 1336: 'checkout'=>'Check out Exam for Viewing',
1337: 'checkout?'=>'Check out Exam?');
1.352 albertel 1338: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 1339: return (<<ENDCHECKOUT);
1.211 albertel 1340: <h2>$lt{'resource'}</h2>
1341: <p>$lt{'id_expln'}</p>
1.449 bisitz 1342: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 1343: <form name="checkout" method="post" action="$uri">
1.91 albertel 1344: <input type="hidden" name="doescheckout" value="yes" />
1.512.2.4 raeburn 1345: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onclick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 1346: </form>
1347: ENDCHECKOUT
1348: }
1349:
1.252 albertel 1350: sub firstaccess_msg {
1.253 albertel 1351: my ($time,$symb)=@_;
1.414 albertel 1352: my $result;
1353: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1354: if ($interval[1] eq 'map') {
1355: my ($map)=&Apache::lonnet::decode_symb($symb);
1356: my $foldertitle=&Apache::lonnet::gettitle($map);
1357:
1358: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 1359: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
1360: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1361: ,$foldertitle,$time)."</p>";
1.414 albertel 1362: } elsif ($interval[1] eq 'course') {
1363: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 1364: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 1365: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 1366: ,$course,$time)."</p>";
1.414 albertel 1367: } else {
1368: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1369: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1370: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1371: ,$title,$time)."</p>";
1.414 albertel 1372: }
1.352 albertel 1373: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1374: my $buttontext = &mt('Show Resource');
1375: my $timertext = &mt('Start Timer?');
1.414 albertel 1376: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1377: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1378: <input type="hidden" name="markaccess" value="yes" />
1.512.2.4 raeburn 1379: <input type="button" name="accessbutton" value="$buttontext" onclick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1380: </form>
1381: ENDCHECKOUT
1.414 albertel 1382: return $result;
1.252 albertel 1383: }
1384:
1.204 albertel 1385: sub init_problem_globals {
1386: my ($type)=@_;
1387: #initialize globals
1.308 foxr 1388: # For problems, we start out in part 0 (outside a <part> tag).
1389: # and part 0 is used to describe the main body of the <problem>
1390: #
1.204 albertel 1391: if ($type eq 'problem') {
1392: $Apache::inputtags::part='0';
1393: @Apache::inputtags::partlist=('0');
1.405 albertel 1394: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1395: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1396:
1.266 albertel 1397: } elsif ($type eq 'library') {
1.204 albertel 1398: $Apache::inputtags::part='';
1399: @Apache::inputtags::partlist=();
1.405 albertel 1400: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1401: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1402:
1.304 albertel 1403: } elsif ($type eq 'Task') {
1404: $Apache::inputtags::part='0';
1405: @Apache::inputtags::partlist=('0');
1.405 albertel 1406: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1407: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1408: }
1.477 www 1409: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1410: @Apache::inputtags::responselist = ();
1411: @Apache::inputtags::importlist = ();
1412: @Apache::inputtags::previous=();
1413: @Apache::inputtags::previous_version=();
1.512.2.10 raeburn 1414: $Apache::inputtags::leniency='';
1.204 albertel 1415: $Apache::structuretags::printanswer='No';
1416: @Apache::structuretags::whileconds=();
1417: @Apache::structuretags::whilebody=();
1418: @Apache::structuretags::whileline=();
1419: $Apache::lonhomework::scantronmode=0;
1420: undef($Apache::lonhomework::name);
1.358 albertel 1421: undef($Apache::lonhomework::default_type);
1422: undef($Apache::lonhomework::type);
1.204 albertel 1423: }
1424:
1425: sub reset_problem_globals {
1426: my ($type)=@_;
1427: undef(%Apache::lonhomework::history);
1428: undef(%Apache::lonhomework::results);
1429: undef($Apache::inputtags::part);
1.512.2.10 raeburn 1430: undef($Apache::inputtags::leniency);
1.498 raeburn 1431: if ($type eq 'Task') {
1432: undef($Apache::inputtags::slot_name);
1.512.2.9 raeburn 1433: } elsif ($type eq 'problem') {
1434: undef($Apache::lonhomework::rawrndseed);
1.498 raeburn 1435: }
1.208 albertel 1436: #don't undef this, lonhomework.pm takes care of this, we use this to
1437: #detect if we try to do 2 problems in one file
1438: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1439: undef($Apache::lonhomework::name);
1.358 albertel 1440: undef($Apache::lonhomework::default_type);
1441: undef($Apache::lonhomework::type);
1442: undef($Apache::lonhomework::scantronmode);
1443: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1444: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1445: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1446: }
1447:
1.241 albertel 1448: sub set_problem_state {
1.240 albertel 1449: my ($part)=@_;
1.284 albertel 1450: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1451: $Apache::lonhomework::history{"resource.$part.solved"}=
1452: 'correct_by_student';
1453: }
1454: }
1455:
1.241 albertel 1456: sub get_problem_status {
1457: my ($part)=@_;
1.267 albertel 1458: my $problem_status;
1.284 albertel 1459: if ($env{'request.state'} eq 'construct' &&
1460: defined($env{'form.problemstatus'})) {
1461: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1462: } else {
1463: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1464: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1465: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1466: }
1467: return $problem_status;
1468: }
1469:
1.9 albertel 1470: sub start_problem {
1.326 albertel 1471: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1472:
1.311 foxr 1473: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1474: if (!$Apache::lonxml::metamode) {
1475: &Apache::lonxml::startredirection();
1476: }
1.311 foxr 1477:
1.308 foxr 1478: # Problems don't nest and we don't allow more than one <problem> in
1479: # a .problem file.
1480: #
1.184 albertel 1481: if ( $Apache::inputtags::part ne '' ||
1482: $Apache::lonhomework::parsing_a_problem) {
1483: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1484: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1485: return '';
1486: }
1.184 albertel 1487:
1488: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1489: &init_problem_globals('problem');
1.166 albertel 1490:
1.284 albertel 1491: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1492: $Apache::lonhomework::scantronmode=1;
1493: }
1.161 albertel 1494:
1.159 albertel 1495: if ($target ne 'analyze') {
1.415 raeburn 1496: my $type = &Apache::lonnet::EXT('resource.0.type');
1497: $Apache::lonhomework::type=$type;
1.284 albertel 1498: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1499: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1500: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1501: }
1.332 albertel 1502: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1503: }
1.164 albertel 1504: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1505: my $uri=$env{'request.uri'};
1.159 albertel 1506: if ($uri=~/\.(\w+)$/) {
1507: $Apache::lonhomework::type=$1;
1508: &Apache::lonxml::debug("Using type of $1");
1509: } else {
1510: $Apache::lonhomework::type='problem';
1511: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1512: }
1.87 albertel 1513: }
1.301 albertel 1514: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1515:
1.363 albertel 1516: &initialize_storage();
1.389 albertel 1517: if ($target ne 'analyze'
1518: && $env{'request.state'} eq 'construct') {
1519: &set_problem_state('0');
1520: }
1521:
1.366 albertel 1522: if ($target eq 'web') {
1523: &Apache::lonxml::debug(" grading history ");
1524: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1525: }
1.363 albertel 1526:
1.159 albertel 1527: #added vars to the scripting enviroment
1.213 albertel 1528: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1529: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1530: &Apache::run::run($expression,$safeeval);
1.159 albertel 1531: my $status;
1532: my $accessmsg;
1.508 raeburn 1533: my $resource_due;
1.159 albertel 1534:
1.343 albertel 1535: my $name= &get_resource_name($parstack,$safeeval);
1.512.2.16 raeburn 1536: my ($result,$form_tag_start,$slot_name,$slot,$probpartlist,$firstaccres);
1.506 raeburn 1537:
1538: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1539: $target eq 'tex') {
1540: if ($env{'form.markaccess'}) {
1541: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1.512.2.16 raeburn 1542: my $is_set = &Apache::lonnet::set_first_access($interval[1],$interval[0]);
1543: unless (($is_set eq 'ok') || ($is_set eq 'already_set')) {
1544: $firstaccres = $is_set;
1545: }
1.506 raeburn 1546: }
1547:
1548: ($status,$accessmsg,$slot_name,$slot) =
1549: &Apache::lonhomework::check_slot_access('0','problem');
1550: push (@Apache::inputtags::status,$status);
1551: }
1552:
1.354 albertel 1553: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1554: || $target eq 'edit') {
1.512.2.9 raeburn 1555: ($result,$form_tag_start,$probpartlist) =
1.350 albertel 1556: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1557: $name);
1.512.2.9 raeburn 1558: } elsif (($target eq 'grade') && ($Apache::lonhomework::type eq 'randomizetry')) {
1559: my ($symb)= &Apache::lonnet::whichuser();
1560: my $navmap = Apache::lonnavmaps::navmap->new();
1561: if (ref($navmap)) {
1562: my $res = $navmap->getBySymb($symb);
1563: if (ref($res)) {
1564: $probpartlist = $res->parts();
1565: }
1566: }
1.350 albertel 1567: }
1568:
1.284 albertel 1569: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1570:
1.479 raeburn 1571: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1572: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1573: $target eq 'tex') {
1.479 raeburn 1574:
1.159 albertel 1575: #handle rand seed in construction space
1.512.2.9 raeburn 1576: my $rndseed=&setup_rndseed($safeeval,$target,$probpartlist);
1577: if (($target eq 'grade') && &Apache::response::submitted()) {
1578: if ($Apache::lonhomework::type eq 'randomizetry') {
1579: $Apache::lonhomework::results{'resource.0.rndseed'}=$rndseed;
1580: } else {
1581: my @parts;
1582: if (ref($probpartlist) eq 'ARRAY') {
1583: @parts = @{$probpartlist};
1584: }
1585: unless (@parts) {
1586: $Apache::lonhomework::results{'resource.0.rndseed'}=$Apache::lonhomework::rawrndseed;
1587: }
1588: }
1589: }
1.367 albertel 1590: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 1591:
1.333 albertel 1592: if ($env{'request.state'} ne "construct" &&
1593: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.512.2.20! raeburn 1594: my $rndseedval = $rndseed;
! 1595: if (($symb eq '') && ($Apache::lonhomework::type eq 'randomizetry')) {
! 1596: $rndseedval = $env{'form.rndseed'};
! 1597: }
1.162 albertel 1598: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.512.2.20! raeburn 1599: $rndseedval.'" />'.
1.462 raeburn 1600: '<input type="submit" name="resetdata"
1601: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1602: if (exists($env{'form.username'})) {
1603: $form_tag_start.=
1.164 albertel 1604: '<input type="hidden" name="username"
1.284 albertel 1605: value="'.$env{'form.username'}.'" />';
1.334 albertel 1606: }
1.462 raeburn 1607: if ($env{'request.role.adv'}) {
1608: $form_tag_start.= ' <label class="LC_nobreak">'
1609: .'<input type="checkbox" name="showallfoils"';
1610: if (defined($env{'form.showallfoils'})) {
1611: $form_tag_start.=' checked="checked"';
1612: }
1613: $form_tag_start.= ' /> '
1614: .&mt('Show All Foils')
1615: .'</label>';
1616: }
1.417 www 1617: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1618: $form_tag_start.=&practice_problem_header();
1.417 www 1619: }
1.462 raeburn 1620: $form_tag_start.='<hr />';
1.512.2.20! raeburn 1621: }
! 1622: if (($env{'request.state'} ne "construct") &&
! 1623: ($Apache::lonhomework::type eq 'randomizetry') &&
! 1624: ($status eq 'CAN_ANSWER')) {
1.479 raeburn 1625: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1626: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1627: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1628: }
1.324 albertel 1629:
1.159 albertel 1630: my $expression='$external::datestatus="'.$status.'";';
1631: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1632: &Apache::run::run($expression,$safeeval);
1633: &Apache::lonxml::debug("Got $status");
1.324 albertel 1634:
1.159 albertel 1635: if (( $status eq 'CLOSED' ) ||
1636: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1637: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1638: ( $status eq 'BANNED') ||
1.216 albertel 1639: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1640: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1641: ( $status eq 'NOTRESERVABLE') ||
1642: ( $status eq 'RESERVABLE') ||
1643: ( $status eq 'RESERVABLE_LATER') ||
1.216 albertel 1644: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1645: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1646: $style);
1.159 albertel 1647: if ( $target eq "web" ) {
1.343 albertel 1648: my $msg;
1.159 albertel 1649: if ($status eq 'UNAVAILABLE') {
1.504 golterma 1650: $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1.441 raeburn 1651: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.504 golterma 1652: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1.499 raeburn 1653: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1654: ($status eq 'NOTRESERVABLE')) {
1.504 golterma 1655: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1.253 albertel 1656: } elsif ($status ne 'NOT_YET_VIEWED') {
1.504 golterma 1657: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1.499 raeburn 1658: }
1.216 albertel 1659: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1660: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1661: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1662: $msg.=&checkout_msg();
1.252 albertel 1663: } elsif ($status eq 'NOT_YET_VIEWED') {
1.512.2.16 raeburn 1664: if ($firstaccres) {
1665: $msg .= '<p class="LC_error">'.
1666: &mt('A problem occurred when trying to start the timer.').'</p>';
1667: }
1.253 albertel 1668: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1669: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1670: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.499 raeburn 1671: } elsif ($status eq 'RESERVABLE') {
1672: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1673: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1674: '<br />'.
1675: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1676: } elsif ($status eq 'RESERVABLE_LATER') {
1677: $msg.=&mt('Window to make a reservation will open [_1].',
1678: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1679: } elsif ($status eq 'NOTRESERVABLE') {
1680: $msg.=&mt('Not available to make a reservation.');
1.159 albertel 1681: }
1682: $result.=$msg.'<br />';
1683: } elsif ($target eq 'tex') {
1.332 albertel 1684: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1685: : '\begin{minipage}{\textwidth}';
1.443 foxr 1686: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1687: $startminipage.'\vskip 0 mm';
1.159 albertel 1688: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1689: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1690: } else {
1.211 albertel 1691: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1692: }
1693: }
1.324 albertel 1694: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1695: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1696: $style);
1.324 albertel 1697: if ($target eq 'web') {
1.375 albertel 1698: $result .=
1699: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1700: } elsif ($target eq 'grade') {
1701: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1702: 'problem');
1703: }
1.159 albertel 1704: } elsif ($target eq 'web') {
1.508 raeburn 1705: if ($status eq 'CAN_ANSWER') {
1706: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1707: if ($slot_name ne '') {
1708: my $checked_in =
1709: $Apache::lonhomework::history{'resource.0.checkedin'};
1710: if ($checked_in eq '') {
1711: # unproctored slot access, self checkin
1712: &Apache::bridgetask::check_in('problem',undef,undef,
1713: $slot_name);
1714: $checked_in =
1715: $Apache::lonhomework::results{"resource.0.checkedin"};
1716: }
1717: if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1718: if ($slot->{'starttime'} < time()) {
1719: if (!$resource_due) {
1720: $resource_due = $slot->{'endtime'};
1721: } elsif ($slot->{'endtime'} < $resource_due) {
1722: $resource_due = $slot->{'endtime'};
1723: }
1724: }
1725: }
1726: }
1727: if ($resource_due) {
1728: my $time_left = $resource_due - time();
1729: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1730: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1731: }
1732: }
1733: }
1.368 albertel 1734: $result.="\n $form_tag_start \t".
1.227 albertel 1735: '<input type="hidden" name="submitted" value="yes" />';
1736: # create a page header and exit
1.284 albertel 1737: if ($env{'request.state'} eq "construct") {
1738: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1739: if ($Apache::lonhomework::type eq 'practice') {
1740: $result.= '<input type="submit" name="resetdata" '.
1741: 'value="'.&mt('New Problem Variation').'" />'.
1742: &practice_problem_header().'<hr />';
1.512.2.19 raeburn 1743: } elsif ($Apache::lonhomework::type eq 'randomizetry') {
1744: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1745: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1746: $result.=&randomizetry_problem_header($problemstatus,$reqtries);
1.428 raeburn 1747: }
1.227 albertel 1748: }
1749: # if we are viewing someone else preserve that info
1.284 albertel 1750: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1751: foreach my $field ('symb','courseid','domain','username') {
1752: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1753: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1754: }
1.479 raeburn 1755: foreach my $field ('trial','questiontype') {
1756: if ($env{"form.grade_$field"} ne '') {
1757: $result .= '<input type="hidden" name="grade_'.$field.
1758: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1759: }
1760: }
1.159 albertel 1761: }
1.490 raeburn 1762: if ($env{'form.grade_imsexport'}) {
1763: $result = '';
1764: }
1.159 albertel 1765: } elsif ($target eq 'tex') {
1.319 foxr 1766: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 1767: $result .= &select_metadata_hyphenation();
1768:
1.319 foxr 1769:
1.99 sakharuk 1770: }
1.159 albertel 1771: } elsif ($target eq 'edit') {
1.343 albertel 1772: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1773: $Apache::lonxml::warnings_error_header=
1774: &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 1775: my $temp=&Apache::edit::insertlist($target,$token);
1776: $result.=$temp;
1777: } elsif ($target eq 'modified') {
1778: $result=$token->[4];
1779: } else {
1780: # page_start returned a starting result, delete it if we don't need it
1781: $result = '';
1.99 sakharuk 1782: }
1.159 albertel 1783: return $result;
1.9 albertel 1784: }
1785:
1786: sub end_problem {
1.159 albertel 1787: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1788: my $result;
1.310 foxr 1789:
1.321 albertel 1790: if (!$Apache::lonxml::metamode) {
1791: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1792: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1793: }
1.319 foxr 1794:
1795: if ($target eq 'tex') {
1.321 albertel 1796: # Figure out the front matter and replace the
1797: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1798: # this in end_problem because whether or not we display due
1799: # dates depends on whether due dates have already been
1800: # displayed in the problem parts.
1801:
1.319 foxr 1802: my $frontmatter = '';
1803: my $startminipage = '';
1804: if (not $env{'form.problem_split'}=~/yes/) {
1805: $startminipage = '\begin{minipage}{\textwidth}';
1806: }
1807: my $id = $Apache::inputtags::part;
1808: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1809: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.512.2.9 raeburn 1810: my @packages = split(/,/,$packages);
1.319 foxr 1811: my $allow_print_points = 0;
1812: foreach my $partial_key (@packages) {
1813: if ($partial_key=~m/^part_0$/) {
1814: $allow_print_points=1;
1815: }
1816: }
1817: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1818: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1819: if (lc($env{'course.'.$env{'request.course.id'}.
1820: '.disableexampointprint'}) eq 'yes') {
1821: $allow_print_points=0;
1822: }
1823: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1824: 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 1825: &clear_required_languages();
1.319 foxr 1826: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1827: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1828:
1829: # Figure out what the due date is and if we need to print
1830: # it in the problem header. We have been logging the
1831: # last due date written to file.
1832:
1833: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1834: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1835: my $duedate_text = &mt('Due date: [_1]'
1836: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1837: my $temp_file;
1838: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1839:
1840: # Figure out what the last printed due date is or set it
1841: # to the epoch if no duedates have been printed.
1842:
1843: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1844: if (-e $filename) {
1845: $temp_file = Apache::File->new($filename);
1846: my @due_file = <$temp_file>;
1847: $due_file_content = $due_file[$#due_file];
1848: chomp $due_file_content;
1849: }
1850:
1851: # We display the due date iff it is not the same as the last
1852: # duedate in problem header ($due_file_content), and
1853: # none of our parts displayed a duedate.
1854: #
1855: my $parts_with_displayduedate;
1856: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1857: $parts_with_displayduedate =
1858: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1859: } else {
1860: $parts_with_displayduedate = 0;
1861: }
1862: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1863: $temp_file = Apache::File->new('>'.$filename);
1864: print $temp_file "$duetime\n";
1865: if (not $env{'request.symb'} =~ m/\.page_/) {
1866: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1867: $frontmatter .= $begin_doc.
1.448 bisitz 1868: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1869: } else {
1870: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1871: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1872: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1873: }
1.319 foxr 1874: }
1875: } else {
1.448 bisitz 1876: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1877: }
1878: } else {
1879: if (not $env{'request.symb'} =~ m/\.page_/) {
1880: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1881: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1882: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1883: }
1.319 foxr 1884: } else {
1.381 albertel 1885: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1886: }
1887: }
1888: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1889: }
1890:
1.159 albertel 1891: my $status=$Apache::inputtags::status['-1'];
1892: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1893: $target eq 'tex') {
1.249 albertel 1894: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1895: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1896: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1897: &Apache::inputtags::grade;
1.324 albertel 1898: } elsif ($status eq 'NEEDS_CHECKIN') {
1899: # no need to grade, and don't want to hide data
1.249 albertel 1900: } else {
1901: # move any submission data to .hidden
1902: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1903: }
1.159 albertel 1904: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1905: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1906: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1907: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1908: # if part is zero, no <part>s existed, so we need show the current
1909: # grading status
1910: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1911: $result.= $gradestatus;
1912: }
1913: if (
1.284 albertel 1914: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1915: ($target eq 'answer') || ($target eq 'tex')
1916: ) {
1.490 raeburn 1917: if (($target ne 'tex') &&
1918: ($env{'form.answer_output_mode'} ne 'tex') &&
1919: (!$env{'form.grade_imsexport'})) {
1.254 www 1920: $result.="</form>";
1.159 albertel 1921: }
1922: if ($target eq 'web') {
1.507 raeburn 1923: #
1924: # Closing </body></html> not added by end_page().
1925: # Added separately at end of this routine, after added
1926: # <script></script> so document will be valid xhtml.
1927: #
1928: $result.= &Apache::loncommon::end_page({'discussion' => 1,
1929: 'notbody' => 1});
1.159 albertel 1930: } elsif ($target eq 'tex') {
1.178 sakharuk 1931: my $endminipage = '';
1.284 albertel 1932: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1933: $endminipage = '\end{minipage}';
1934: }
1.284 albertel 1935: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1936: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1937: } else {
1.262 sakharuk 1938: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1939: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1940: $result .= $endminipage.'\end{document} ';
1941: } else {
1.382 albertel 1942: $result .= $endminipage;
1.262 sakharuk 1943: }
1.159 albertel 1944: }
1945: }
1946: }
1.476 www 1947: if ($target eq 'web') {
1948: $result.=&Apache::functionplotresponse::init_script();
1949: }
1.159 albertel 1950: if ($target eq 'grade') {
1951: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1952: &finalize_storage();
1953: }
1.284 albertel 1954: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1955: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1956: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1957: # normally we get it from above, but in CSTR
1.172 albertel 1958: # we always show answer mode too.
1.159 albertel 1959: }
1960: } elsif ($target eq 'meta') {
1961: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1962: @Apache::inputtags::response=();
1.159 albertel 1963: $result=&Apache::response::mandatory_part_meta;
1964: }
1.215 albertel 1965: $result.=&Apache::response::meta_part_order();
1.258 albertel 1966: $result.=&Apache::response::meta_response_order();
1.159 albertel 1967: } elsif ($target eq 'edit') {
1968: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1969: $result .= &problem_edit_footer();
1.320 albertel 1970: } elsif ($target eq 'modified') {
1971: $result .= $token->[2];
1.159 albertel 1972: }
1.155 albertel 1973:
1.284 albertel 1974: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1975: &Apache::inputtags::check_for_duplicate_ids();
1976: }
1.204 albertel 1977:
1978: &reset_problem_globals('problem');
1.159 albertel 1979:
1.502 foxr 1980: #
1981: # This shouild be just above the return so that the
1982: # time put in the javascript is as late as possible in the
1983: # computation:
1984: #
1985: if ($target eq 'web') {
1986: $result .= &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 1987: #
1988: # Closing tags delayed so any <script></script> tags
1989: # not in head can appear inside body, for valid xhtml.
1990: #
1991: $result .= "</body>\n</html>";
1.502 foxr 1992: }
1.159 albertel 1993: return $result;
1.48 albertel 1994: }
1995:
1.108 albertel 1996:
1.48 albertel 1997: sub start_library {
1.159 albertel 1998: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1999: my ($result,$form_tag_start);
1.371 albertel 2000: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 2001: &init_problem_globals('library');
2002: $Apache::lonhomework::type='problem';
2003: }
1.159 albertel 2004: if ($target eq 'edit') {
1.343 albertel 2005: ($result,$form_tag_start)=
2006: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2007: 'Edit');
2008: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 2009: my $temp=&Apache::edit::insertlist($target,$token);
2010: $result.=$temp;
2011: } elsif ($target eq 'modified') {
2012: $result=$token->[4];
1.340 albertel 2013: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 2014: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 2015: && $env{'request.state'} eq "construct" ) {
1.159 albertel 2016: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 2017: ($result,$form_tag_start)=
2018: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2019: $name);
1.479 raeburn 2020: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 2021: $result.=" \n $form_tag_start".
1.159 albertel 2022: '<input type="hidden" name="submitted" value="yes" />';
2023: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 2024: if ($Apache::lonhomework::type eq 'practice') {
2025: $result.= '<input type="submit" name="resetdata" '.
2026: 'value="'.&mt('New Problem Variation').'" />'.
2027: &practice_problem_header().'<hr />';
2028: }
1.159 albertel 2029: }
2030: return $result;
1.48 albertel 2031: }
2032:
2033: sub end_library {
1.159 albertel 2034: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2035: my $result='';
2036: if ($target eq 'edit') {
2037: $result=&problem_edit_footer();
1.371 albertel 2038: } elsif ($target eq 'web'
2039: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
2040: && $env{'request.state'} eq "construct") {
1.349 albertel 2041: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.512.2.15 raeburn 2042: } elsif ($target eq 'meta') {
2043: $result.=&Apache::response::meta_response_order();
1.159 albertel 2044: }
1.371 albertel 2045: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
2046: &reset_problem_globals('library');
2047: }
1.159 albertel 2048: return $result;
1.197 www 2049: }
2050:
2051: sub start_definetag {
1.326 albertel 2052: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 2053:
2054: my $result;
2055:
2056: my $name = $token->[2]->{'name'};
1.326 albertel 2057: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 2058: if ($target eq 'web') {
2059: if ($name=~/^\//) {
2060: $result=
2061: '<br /><table class="LC_sty_end"><tr><th>'.
2062: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2063: } else {
2064: $result=
2065: '<br /><table class="LC_sty_begin"><tr><th>'.
2066: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2067: }
2068: $skip = &HTML::Entities::encode($skip, '<>&"');
2069: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 2070: }
2071: return $result;
2072: }
2073:
2074: sub end_definetag {
2075: return '';
1.1 albertel 2076: }
2077:
2078: sub start_block {
1.201 albertel 2079: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 2080:
2081: my $result;
1.1 albertel 2082:
1.339 albertel 2083: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2084: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 2085: my $code = $token->[2]->{'condition'};
1.385 albertel 2086: if (defined($code) && $code ne '') {
1.137 albertel 2087: if (!$Apache::lonxml::default_homework_loaded) {
2088: &Apache::lonxml::default_homework_load($safeeval);
2089: }
1.131 albertel 2090: $result = &Apache::run::run($code,$safeeval);
2091: &Apache::lonxml::debug("block :$code: returned :$result:");
2092: } else {
2093: $result='1';
2094: }
2095: if ( ! $result ) {
1.201 albertel 2096: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 2097: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2098: }
2099: $result='';
2100: } elsif ($target eq 'edit') {
2101: $result .=&Apache::edit::tag_start($target,$token);
2102: $result .=&Apache::edit::text_arg('Test Condition:','condition',
2103: $token,40);
2104: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2105: } elsif ($target eq 'modified') {
2106: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2107: $safeeval,'condition');
2108: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 2109: }
1.131 albertel 2110: return $result;
1.1 albertel 2111: }
2112:
2113: sub end_block {
1.167 www 2114: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2115: my $result;
2116: if ($target eq "edit") {
2117: $result.= &Apache::edit::tag_end($target,$token,'');
2118: }
2119: return $result;
2120: }
1.500 foxr 2121: #
2122: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
2123: # ...
2124: # </languageblock>
2125: #
2126: # This declares the intent to provide content that can be rendered in the
2127: # set of languages in the include specificatino but not in the exclude
2128: # specification. If a currently preferred language is in the include list
2129: # the content in the <languageblock>...</languageblock> is rendered
2130: # If the currently preferred language is in the exclude list,
2131: # the content in the <languageblock>..></languageblock is not rendered.
2132: #
2133: # Pathalogical case handling:
2134: # - Include specified, without the preferred language but exclude specified
2135: # also without the preferred langauge results in rendering the block.
2136: # - Exclude specified without include and excluden not containing a
2137: # preferred language renders the block.
2138: # - Include and exclude both specifying the preferred language does not
2139: # render the block.
2140: # - If neither include/exclude is specified, the block gets rendered.
2141: #
2142: # This tag has no effect when target is in {edit, modified}
2143: #
1.167 www 2144: sub start_languageblock {
1.201 albertel 2145: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 2146:
1.500 foxr 2147: my $result = '';
1.167 www 2148:
1.339 albertel 2149: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2150: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 2151: my $include = $token->[2]->{'include'};
2152: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 2153: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 2154:
2155: # This should not even happen, since we should at least have the server language
2156:
2157: if (!$preferred_languages[0]) {
2158: $preferred_languages[0]='en';
2159: }
2160:
2161: # Now loop over all languages in order of preference
2162:
2163: my $render;
1.398 www 2164: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 2165:
2166: # If neither include/nor exlude is present the block is going
2167: # to get rendered.
2168:
1.399 www 2169: my $found=0;
1.500 foxr 2170: $render=1;
2171:
2172: # If include is specified, don't render the block
2173: # unless the preferred language is included in the set.
2174:
1.398 www 2175: if ($include) {
1.500 foxr 2176: $render=0;
1.398 www 2177: foreach my $included_language (split(/\,/,$include)) {
2178: if ($included_language eq $preferred_language) {
1.500 foxr 2179: $render=1;
1.399 www 2180: $found=1;
1.500 foxr 2181: last; # Only need to find the first.
1.398 www 2182: }
2183: }
2184: }
1.500 foxr 2185: # Do we have an exclude argument?
2186: # If so, and one of the languages matches a preferred language
2187: # inhibit rendering the block. Note that in the pathalogical case the
2188: # author has specified a preferred language in both the include and exclude
2189: # attribte exclude is preferred.
2190:
1.398 www 2191: if ($exclude) {
1.500 foxr 2192: $render=1;
1.398 www 2193: foreach my $excluded_language (split(/\,/,$exclude)) {
2194: if ($excluded_language eq $preferred_language) {
1.500 foxr 2195: $render=0;
1.399 www 2196: $found=1;
1.500 foxr 2197: last; # Only need to find the first.
1.398 www 2198: }
2199: }
2200: }
1.500 foxr 2201: if ($found) {
2202: last; # Done on any match of include or exclude.
2203: }
1.398 www 2204: }
1.500 foxr 2205: # If $render not true skip the entire block until </languageblock>
2206: #
2207:
2208: if ( ! $render ) {
1.201 albertel 2209: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
2210: $style);
2211: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2212: }
1.500 foxr 2213: # If $render is true, we've not skipped the contents of the <languageglock>
2214: # and the normal loncapa processing flow will render it as a matter of course.
2215:
1.167 www 2216: } elsif ($target eq 'edit') {
2217: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2218: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 2219: $token,40);
1.211 albertel 2220: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 2221: $token,40);
2222: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2223: } elsif ($target eq 'modified') {
2224: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 2225: $safeeval,'include',
2226: 'exclude');
1.167 www 2227: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2228: }
2229: return $result;
2230: }
2231:
2232: sub end_languageblock {
1.170 www 2233: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2234: my $result;
1.201 albertel 2235: if ($target eq "edit") {
1.170 www 2236: $result.= &Apache::edit::tag_end($target,$token,'');
2237: }
2238: return $result;
2239: }
1.500 foxr 2240: # languagblock specific tags:
2241: {
2242: # For chunks of a resource that has translations, this hash contains
2243: # the translations available indexed by language name.
2244: #
2245:
2246: my %available_texts;
1.170 www 2247:
1.500 foxr 2248: # <translated> starts a block of a resource that has multiple translations.
2249: # See the <lang> tag as well.
2250: # When </translated> is encountered if there is a translation for the
2251: # currently preferred language, that is rendered inthe web/tex/webgrade
2252: # targets. Otherwise, the default text is rendered.
2253: #
2254: # Note that <lang> is only registered for the duration of the
2255: # <translated>...</translated> block
2256: #
2257: # Pathalogical case handling:
2258: # - If there is no <lang> that specifies a 'default' and there is no
2259: # translation that matches a preferred language, nothing is rendered.
2260: # - Nested <translated>...</translated> might be linguistically supported by
2261: # XML due to the stack nature of tag registration(?) however the rendered
2262: # output will be incorrect because there is only one %available_texts
2263: # has and end_translated clears it.
2264: # - Material outside of a <lang>...</lang> block within the
2265: # <translated>...<translated> block won't render either e.g.:
2266: # <translated>
2267: # The following will be in your preferred langauge:
2268: # <lang which='en'>
2269: # This section in english
2270: # </lang>
2271: # <lang which='sgeiso'>
2272: # Hier es ist auf Deutsch.
2273: # </lang>
2274: # <lang which='sfriso'>
2275: # En Francais
2276: # </lang>
2277: # </translated>
2278: #
2279: # The introductory text prior to the first <lang> tag is not rendered.
2280: #
1.397 albertel 2281: sub start_translated {
2282: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2283: &Apache::lonxml::register('Apache::structuretags',('lang'));
2284: undef(%available_texts);
2285: }
2286:
2287: sub end_translated {
2288: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2289: my $result;
2290: #show the translation on viewable targets
2291: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
2292: # or non-viewable targets, if it's embedded in something that
2293: # wants the output
2294: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
2295: && &Apache::lonxml::in_redirection() ) ) {
2296: my @possibilities = keys(%available_texts);
2297: my $which =
2298: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 2299: if ($target eq 'tex') {
2300: $result = &select_hyphenation($which);
2301: }
2302: $result .= $available_texts{$which};
2303: if ($target eq 'tex') {
2304: $result .= &select_metadata_hyphenation(); # Restore original language.
2305: }
1.397 albertel 2306: }
2307: undef(%available_texts);
2308: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
2309: return $result;
2310: }
2311:
1.500 foxr 2312: # <lang [which='language-name'] [other='lang1,lang2...']>
2313: # Specifies that the block contained within it is a translation
2314: # for a specific language specified by the 'which' attribute. The
2315: # 'other' attribute can be used by itself or in conjunction with
2316: # which to specify this tag _may_ be used as a translation for some
2317: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
2318: # specifying that the block provides a translation for US (primary)
2319: # Canadian, Australian and UK Englush.
2320: #
2321: # Comment: this seems a bit silly why not just support a list of languages
2322: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
2323: #
2324: # Effect:
2325: # The material within the <lang>..</lang> block is stored in the
2326: # specified set of $available_texts hash entries, the appropriate one
2327: # is selected at </translated> time.
2328: #
2329: # Pathalogical case handling:
2330: # If a language occurs multiple times within a <translated> block,
2331: # only the last one is rendered e.g.:
2332: #
2333: # <translated>
2334: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
2335: # Red green color blindness is quite common affecting about 7.8% of
2336: # the male population, but onloy about .65% of the female population.
2337: # </lang>
2338: # Red green colour blindness is quite common affecting about 7.8% of
2339: # the male population, but onloy about .65% of the female population.
2340: # <lang which='seniso', other='senisoCA,senisoAU'>
2341: # </translated>
2342: #
2343: # renders the correct spelling of color (colour) for people who have specified
2344: # a preferred language that is one of the British Commonwealth languages
2345: # even though those are also listed as valid selections for the US english
2346: # <lang> block.
2347: #
1.397 albertel 2348: sub start_lang {
2349: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2350: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2351: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2352: &Apache::lonxml::startredirection();
2353: }
2354: return '';
2355: }
2356:
2357: sub end_lang {
2358: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2359: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2360: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2361: my $result = &Apache::lonxml::endredirection();
2362: my $which = &Apache::lonxml::get_param('which',$parstack,
2363: $safeeval);
1.431 raeburn 2364: if ($which=~/\w/) {
2365: $available_texts{$which} = $result;
2366: }
2367: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
2368: $safeeval);
2369: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
2370: if ($language=~/\w/) {
2371: $available_texts{$language} = $result;
2372: }
1.427 bisitz 2373: }
2374:
1.397 albertel 2375: }
2376: return '';
2377: }
1.500 foxr 2378: } # end langauge block specific tags.
2379:
1.397 albertel 2380:
1.170 www 2381: sub start_instructorcomment {
1.201 albertel 2382: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 2383:
2384: my $result;
2385:
1.339 albertel 2386: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2387: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 2388: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 2389: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 2390: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
2391: $parser,$style);
1.170 www 2392: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2393: }
2394: $result='';
2395: } elsif ($target eq 'edit') {
2396: $result .=&Apache::edit::tag_start($target,$token);
2397: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2398: }
2399: return $result;
2400: }
2401:
2402: sub end_instructorcomment {
1.159 albertel 2403: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2404: my $result;
2405: if ($target eq "edit") {
2406: $result.= &Apache::edit::tag_end($target,$token,'');
2407: }
2408: return $result;
1.4 tsai 2409: }
2410:
2411: sub start_while {
1.326 albertel 2412: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2413:
1.160 albertel 2414: my $result;
1.339 albertel 2415: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2416: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2417: my $code = $token->[2]->{'condition'};
1.4 tsai 2418:
1.160 albertel 2419: push( @Apache::structuretags::whileconds, $code);
2420: if (!$Apache::lonxml::default_homework_loaded) {
2421: &Apache::lonxml::default_homework_load($safeeval);
2422: }
2423: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2424: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2425: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2426: push( @Apache::structuretags::whileline, $token->[5]);
2427: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2428: if ( $result ) {
2429: &Apache::lonxml::newparser($parser,\$bodytext);
2430: }
2431: } elsif ($target eq 'edit') {
2432: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2433: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2434: $token,40);
2435: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2436: } elsif ($target eq 'modified') {
2437: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2438: $safeeval,'condition');
2439: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2440: }
1.160 albertel 2441: return $result;
1.4 tsai 2442: }
2443:
2444: sub end_while {
1.159 albertel 2445: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2446: my $result;
2447:
1.339 albertel 2448: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2449: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2450: my $code = pop(@Apache::structuretags::whileconds);
2451: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2452: my $line = pop(@Apache::structuretags::whileline);
2453: my $return = &Apache::run::run($code,$safeeval);
2454: my $starttime=time;
2455: my $error=0;
2456: while ($return) {
2457: if (time-$starttime >
2458: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2459: $return = 0; $error=1; next;
1.161 albertel 2460: }
2461: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2462: if ($target eq 'grade' || $target eq 'answer' ||
2463: $target eq 'analyze') {
2464: # grade/answer/analyze should produce no output but if we
2465: # are redirecting, the redirecter should know what to do
2466: # with the output
2467: if (!$Apache::lonxml::redirection) { undef($result); }
2468: }
1.161 albertel 2469: $return = &Apache::run::run($code,$safeeval);
2470: }
1.512.2.5 raeburn 2471: if ($error) {
2472: &Apache::lonxml::error(
2473: '<pre>'
2474: .&mt('Code ran too long. It ran for more than [_1] seconds.',
2475: $Apache::lonnet::perlvar{'lonScriptTimeout'})
2476: .&mt('This occurred while running <while> on line [_1].',
2477: $line)
2478: .'</pre>');
2479: }
1.160 albertel 2480: } elsif ($target eq "edit") {
2481: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2482: }
1.160 albertel 2483: return $result;
1.1 albertel 2484: }
1.6 tsai 2485:
1.160 albertel 2486: # <randomlist show="1">
1.6 tsai 2487: # <tag1>..</tag1>
2488: # <tag2>..</tag2>
2489: # <tag3>..</tag3>
1.160 albertel 2490: # ...
1.6 tsai 2491: # </randomlist>
2492: sub start_randomlist {
1.326 albertel 2493: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2494: my $result;
1.339 albertel 2495: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2496: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2497: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2498: my $b_parser= HTML::LCParser->new(\$body);
2499: $b_parser->xml_mode(1);
2500: $b_parser->marked_sections(1);
1.159 albertel 2501: my $b_tok;
2502: my @randomlist;
2503: my $list_item;
2504: while($b_tok = $b_parser->get_token() ) {
2505: if($b_tok->[0] eq 'S') { # start tag
2506: # get content of the tag until matching end tag
2507: # get all text upto the matching tag
2508: # and push the content into @randomlist
2509: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2510: $b_parser);
2511: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2512: push(@randomlist,$list_item);
2513: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2514: # $list_item</b>";
2515: }
2516: if($b_tok->[0] eq 'T') { # text
2517: # what to do with text in between tags?
2518: # print "<b>TEXT $b_tok->[1]</b><br />";
2519: }
2520: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2521: # print "<b>END-TAG $b_tok->[1]</b><br />";
2522: # }
2523: }
1.303 albertel 2524: if (@randomlist) {
2525: my @idx_arr = (0 .. $#randomlist);
1.512.2.14 raeburn 2526: if ($env{'form.code_for_randomlist'}) {
2527: &Apache::structuretags::shuffle(\@idx_arr,$target);
2528: undef($env{'form.code_for_randomlist'});
2529: } else {
2530: &Apache::structuretags::shuffle(\@idx_arr);
2531: }
1.303 albertel 2532: my $bodytext = '';
2533: my $show=$#randomlist;
2534: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2535: $showarg--;
2536: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2537: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2538: my @currlist;
2539: my $part = $Apache::inputtags::part;
2540: if ($part ne '') {
2541: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2542: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2543: if (!(grep(/^\Q$part\E$/,@currlist))) {
2544: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2545: }
2546: } else {
2547: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2548: }
2549: }
2550: }
1.512.2.9 raeburn 2551: for my $i (0 .. $show) {
2552: $bodytext .= "$randomlist[ $idx_arr[$i] ]";
1.303 albertel 2553: }
2554: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2555: }
2556: } elsif ($target eq 'edit' ) {
2557: $result .=&Apache::edit::tag_start($target,$token);
2558: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2559: $token,5);
2560: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2561: } elsif ($target eq 'modified' ) {
2562: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2563: $safeeval,'show');
2564: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2565: }
2566: return $result;
1.7 tsai 2567: }
2568:
2569: sub shuffle {
1.512.2.14 raeburn 2570: my ($a,$target) = @_;
1.7 tsai 2571: my $i;
1.303 albertel 2572: if (ref($a) eq 'ARRAY' && @$a) {
1.512.2.14 raeburn 2573: &Apache::response::pushrandomnumber(undef,$target);
1.159 albertel 2574: for($i=@$a;--$i;) {
2575: my $j=int(&Math::Random::random_uniform() * ($i+1));
2576: next if $i == $j;
2577: @$a[$i,$j] = @$a[$j,$i];
2578: }
1.251 albertel 2579: &Apache::response::poprandomnumber();
1.7 tsai 2580: }
1.6 tsai 2581: }
2582:
2583: sub end_randomlist {
1.159 albertel 2584: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2585: my $result;
2586: if ($target eq 'edit' ) {
2587: $result=&Apache::edit::tag_end($target,$token,
2588: 'End Randomly Parsed Block');
2589: }
2590: return $result;
1.6 tsai 2591: }
2592:
1.283 albertel 2593: sub ordered_show_check {
2594: my $last_part=$Apache::inputtags::partlist[-2];
2595: my $in_order=
2596: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2597: my $in_order_show=1;
2598: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2599: $in_order_show=&Apache::response::check_status($last_part);
2600: }
2601: return $in_order_show;
2602: }
2603:
1.469 www 2604:
2605: sub start_startpartmarker {
2606: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2607: my $result='';
2608: if ($target eq 'edit') {
2609: $result=&Apache::edit::tag_start($target,$token);
2610: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2611: $result.=&Apache::edit::end_table();
2612:
2613: }
2614: return $result;
2615: }
2616:
2617: sub end_startpartmarker {
2618: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2619: my @result;
2620: if ($target eq 'edit') { $result[1]='no'; }
2621: return @result;
2622: }
2623:
2624: sub start_endpartmarker {
2625: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2626: my $result='';
2627: if ($target eq 'edit') {
2628: $result=&Apache::edit::tag_start($target,$token);
2629: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2630: $result.=&Apache::edit::end_table();
2631:
2632: }
2633: return $result;
2634: }
2635:
2636: sub end_endpartmarker {
2637: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2638: my @result;
2639: if ($target eq 'edit') { $result[1]='no'; }
2640: return @result;
2641: }
2642:
2643:
2644:
2645:
2646:
1.11 albertel 2647: sub start_part {
1.326 albertel 2648: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2649: if (!$Apache::lonxml::metamode) {
2650: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2651: # duedates.
2652: }
1.159 albertel 2653: my $result='';
1.386 albertel 2654: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2655: $Apache::inputtags::part=$id;
1.177 albertel 2656: push(@Apache::inputtags::partlist,$id);
1.512.2.10 raeburn 2657: $Apache::inputtags::leniency='';
1.177 albertel 2658: @Apache::inputtags::response=();
1.159 albertel 2659: @Apache::inputtags::previous=();
2660: @Apache::inputtags::previous_version=();
1.405 albertel 2661: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2662: &Apache::response::reset_params();
2663:
1.159 albertel 2664: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2665: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2666: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.512.2.9 raeburn 2667: if ($Apache::lonhomework::type eq 'randomizetry') {
2668: my $rndseed=&setup_rndseed($safeeval,$target);
2669: if (($target eq 'grade') && &Apache::response::submitted()) {
2670: $Apache::lonhomework::results{"resource.$id.rndseed"}=$rndseed;
2671: }
2672: } elsif (($target eq 'grade') && &Apache::response::submitted()) {
2673: $Apache::lonhomework::results{"resource.$id.rndseed"}=$Apache::lonhomework::rawrndseed;
2674: }
1.283 albertel 2675: my $in_order_show=&ordered_show_check();
1.214 albertel 2676: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2677: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2678: &Apache::run::run($expression,$safeeval);
1.159 albertel 2679:
2680: if ($target eq 'meta') {
1.224 www 2681: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2682: return &Apache::response::mandatory_part_meta.
2683: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2684: } elsif ($target eq 'web' || $target eq 'grade' ||
2685: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2686: if ($hidden || !$in_order_show) {
1.326 albertel 2687: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2688: } else {
2689: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2690: push (@Apache::inputtags::status,$status);
2691: my $expression='$external::datestatus="'.$status.'";';
2692: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2693: &Apache::run::run($expression,$safeeval);
1.284 albertel 2694: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2695: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2696: }
1.216 albertel 2697: if (( $status eq 'CLOSED' ) ||
2698: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2699: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2700: ( $status eq 'BANNED') ||
2701: ( $status eq 'UNAVAILABLE') ||
2702: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2703: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2704: $style);
1.159 albertel 2705: if ( $target eq "web" ) {
1.211 albertel 2706: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2707: } elsif ( $target eq 'tex' ) {
1.284 albertel 2708: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2709: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2710: } else {
1.211 albertel 2711: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2712: }
1.159 albertel 2713: }
2714: } else {
2715: if ($target eq 'tex') {
1.284 albertel 2716: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2717: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2718: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2719: } else {
2720: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2721: }
1.195 sakharuk 2722: }
1.159 albertel 2723: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2724: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.512.2.9 raeburn 2725: my @allkeys = split(/,/,$allkeys);
1.222 sakharuk 2726: my $allow_print_points = 0;
2727: foreach my $partial_key (@allkeys) {
1.230 albertel 2728: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2729: if ($1 ne '0') {$allow_print_points=1;}
2730: }
2731: }
1.275 albertel 2732: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2733: if (defined($maxtries) && $maxtries < 0) {
2734: $allow_print_points=0;
2735: }
1.302 albertel 2736: if (lc($env{'course.'.$env{'request.course.id'}.
2737: '.disableexampointprint'}) eq 'yes') {
2738: $allow_print_points=0;
2739: }
1.463 foxr 2740: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2741: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2742:
2743: }
1.233 www 2744: } elsif ($target eq 'web') {
1.479 raeburn 2745: if ($status eq 'CAN_ANSWER') {
2746: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2747: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
2748: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
2749: my $num = scalar(@Apache::inputtags::partlist)-1;
2750: if ($probrandomize eq 'randomizetry') {
2751: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
2752: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2753: } else {
2754: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2755: if ($probrandtries ne $reqtries) {
2756: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2757: }
2758: }
2759: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
2760: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2761: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2762: }
2763: }
1.475 raeburn 2764: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2765: }
2766: }
2767: }
2768: } elsif ($target eq 'edit') {
2769: $result.=&Apache::edit::tag_start($target,$token);
2770: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2771: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2772: ' '.
2773: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2774: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2775: } elsif ($target eq 'modified') {
2776: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2777: $safeeval,'id','display');
1.159 albertel 2778: if ($constructtag) {
1.225 albertel 2779: #limiting ids to only letters numbers, and space
1.224 www 2780: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2781: $result = &Apache::edit::rebuild_tag($token);
2782: }
2783: }
2784: return $result;
1.11 albertel 2785: }
2786:
2787: sub end_part {
1.159 albertel 2788: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2789: &Apache::lonxml::debug("in end_part $target ");
2790: my $status=$Apache::inputtags::status['-1'];
2791: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2792: my $in_order_show=&ordered_show_check();
1.321 albertel 2793: my $result;
2794: if (!$Apache::lonxml::metamode) {
2795: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2796: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2797: }
1.312 albertel 2798: if ($target eq 'grade') {
1.249 albertel 2799: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2800: !$hidden && $in_order_show) {
1.311 foxr 2801: $result.=&Apache::inputtags::grade;
1.249 albertel 2802: } else {
2803: # move any submission data to .hidden
2804: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2805: }
1.283 albertel 2806: } elsif (($target eq 'web' || $target eq 'tex') &&
2807: !$hidden && $in_order_show) {
1.159 albertel 2808: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2809: $target);
1.490 raeburn 2810: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2811: ($env{'form.grade_imsexport'})) {
1.212 albertel 2812: $gradestatus='';
2813: }
1.311 foxr 2814: $result.=$gradestatus;
1.265 sakharuk 2815: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2816: } elsif ($target eq 'edit') {
1.311 foxr 2817: $result.=&Apache::edit::end_table();
1.322 albertel 2818: } elsif ($target eq 'modified') {
2819: $result .= $token->[2];
1.159 albertel 2820: }
2821: pop @Apache::inputtags::status;
2822: $Apache::inputtags::part='';
1.512.2.10 raeburn 2823: $Apache::inputtags::leniency='';
1.295 albertel 2824: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2825: return $result;
1.11 albertel 2826: }
1.1 albertel 2827:
1.25 albertel 2828: sub start_preduedate {
1.326 albertel 2829: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2830: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2831: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2832: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2833: if (!$Apache::lonhomework::scantronmode &&
2834: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2835: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2836: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2837: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2838: }
1.24 albertel 2839: }
1.159 albertel 2840: return '';
1.24 albertel 2841: }
2842:
1.25 albertel 2843: sub end_preduedate {
1.159 albertel 2844: return '';
1.24 albertel 2845: }
2846:
1.369 foxr 2847: # In all the modes where <postanswerdate> text is
2848: # displayable, all we do is eat up the text between the start/stop
2849: # tags if the conditions are not right to display it.
1.25 albertel 2850: sub start_postanswerdate {
1.326 albertel 2851: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2852: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2853: &Apache::lonnet::allowed('pav',
2854: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2855: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2856: $target eq 'tex' ) {
1.300 albertel 2857: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2858: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2859: (($target eq 'tex') && !$pav)) {
1.326 albertel 2860: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2861: }
2862: }
2863: return '';
1.24 albertel 2864: }
2865:
1.25 albertel 2866: sub end_postanswerdate {
1.159 albertel 2867: return '';
1.24 albertel 2868: }
2869:
1.25 albertel 2870: sub start_notsolved {
1.326 albertel 2871: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2872: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2873: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2874: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2875: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2876: if ($gradestatus =~ /^correct/ &&
2877: &Apache::response::show_answer()) {
1.159 albertel 2878: &Apache::lonxml::debug("skipping");
1.326 albertel 2879: &Apache::lonxml::get_all_text("/notsolved",$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_notsolved {
1.159 albertel 2886: return '';
1.24 albertel 2887: }
2888:
2889: sub start_solved {
1.326 albertel 2890: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2891: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2892: $target eq 'tex') {
2893: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2894: if ($gradestatus !~ /^correct/ ||
2895: !&Apache::response::show_answer()) {
1.326 albertel 2896: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2897: }
1.24 albertel 2898: }
1.159 albertel 2899: return '';
1.24 albertel 2900: }
2901:
2902: sub end_solved {
1.248 albertel 2903: return '';
2904: }
2905:
2906: sub start_problemtype {
1.326 albertel 2907: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2908: my $result;
1.339 albertel 2909: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2910: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2911: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2912: if (!defined($mode)) { $mode='show'; }
2913: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2914: my $found=0;
2915: foreach my $type (split(',',$for)) {
2916: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2917: }
2918: if ($mode eq 'show' && !$found) {
1.326 albertel 2919: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2920: }
2921: if ($mode eq 'hide' && $found) {
1.326 albertel 2922: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2923: }
2924: } elsif ($target eq 'edit') {
2925: $result .=&Apache::edit::tag_start($target,$token);
2926: $result.=&Apache::edit::select_arg('Mode:','mode',
2927: [['show','Show'],
2928: ['hide','Hide']]
2929: ,$token);
2930: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.512.2.2 raeburn 2931: [ ['exam','Exam/Quiz Problem'],
1.248 albertel 2932: ['survey','Survey'],
1.465 raeburn 2933: ['surveycred','Survey (with credit)'],
2934: ['anonsurvey','Anonymous Survey'],
2935: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2936: ['problem','Homework Problem'],
1.479 raeburn 2937: ['practice','Practice Problem'],
2938: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2939: ,$token);
2940: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2941: } elsif ($target eq 'modified') {
2942: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2943: $safeeval,'mode','for');
2944: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2945: }
2946: return $result;
2947: }
2948:
2949: sub end_problemtype {
1.159 albertel 2950: return '';
1.24 albertel 2951: }
1.34 albertel 2952:
2953: sub start_startouttext {
1.159 albertel 2954: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2955: my @result=(''.'');
2956: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2957:
2958: my $nesting =
2959: &Apache::lonxml::set_state('outtext',
2960: &Apache::lonxml::get_state('outtext')+1);
2961: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2962: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2963: }
1.159 albertel 2964: return (@result);
1.34 albertel 2965: }
1.159 albertel 2966:
1.34 albertel 2967: sub end_startouttext {
1.326 albertel 2968: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2969: my $result='';
2970: my $text='';
2971: if ($target eq 'edit') {
1.424 foxr 2972: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2973: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.512.2.11 raeburn 2974: $result.=&Apache::edit::start_table($token)."<tr><td>".&Apache::loncommon::insert_folding_button()
2975: ." ".&mt('Text Block')."</td>"
1.438 bisitz 2976: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2977: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 2978: .'</span></td>'
1.512.2.12 raeburn 2979: .'<td><span id="math_'.$areaid.'">';
2980: if ($env{'environment.nocodemirror'}) {
2981: $result.=&Apache::lonhtmlcommon::dragmath_button($areaid,1);
2982: } else {
2983: $result.=' ';
2984: }
2985: $result.='</span></td>'
1.474 raeburn 2986: .'<td>'
2987: .&Apache::edit::insertlist($target,$token)
2988: .'</td>'
1.512.2.5 raeburn 2989: .'<td class="LC_edit_problem_latexhelper">' .
1.474 raeburn 2990: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2991: &Apache::edit::end_row().
1.362 albertel 2992: &Apache::edit::start_spanning_row()."\n".
1.255 www 2993: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2994: }
2995: if ($target eq 'modified') {
1.219 albertel 2996: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2997: }
2998: if ($target eq 'tex') {
2999: $result .= '\noindent ';
3000: }
3001: return $result;
1.34 albertel 3002: }
1.159 albertel 3003:
1.34 albertel 3004: sub start_endouttext {
1.159 albertel 3005: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3006: my $result='';
3007: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
3008: if ($target eq "modified") {
3009: $result='<endouttext />'.
1.377 albertel 3010: &Apache::edit::handle_insertafter('startouttext');
3011: }
1.404 albertel 3012:
3013: my $nesting =
3014: &Apache::lonxml::set_state('outtext',
3015: &Apache::lonxml::get_state('outtext')-1);
3016: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
3017: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
3018: &Apache::lonxml::set_state('outtext', 0);
3019: }
1.159 albertel 3020: return $result;
1.34 albertel 3021: }
1.159 albertel 3022:
1.34 albertel 3023: sub end_endouttext {
1.159 albertel 3024: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3025: my @result=('','');
3026: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
3027: return (@result);
1.34 albertel 3028: }
1.159 albertel 3029:
1.45 albertel 3030: sub delete_startouttext {
1.326 albertel 3031: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
3032: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 3033: my $text=$$parser['-1']->get_text("/endouttext");
3034: my $ntoken=$$parser['-1']->get_token();
3035: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
3036: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
3037: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
3038: # they did the last time round
3039: &Apache::lonxml::increasedepth($ntoken);
3040: &Apache::lonxml::decreasedepth($ntoken);
3041: return 1;
1.193 www 3042: }
3043:
3044: sub start_simpleeditbutton {
3045: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3046: my $result='';
1.284 albertel 3047: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 3048: ($target eq 'web') &&
1.330 albertel 3049: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 3050: my $url=$env{'request.noversionuri'};
1.193 www 3051: $url=~s/\?.*$//;
1.367 albertel 3052: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 3053: # Warning makes more sense and is more important on edit screen
1.442 bisitz 3054: # $result='<p class="LC_warning">'
3055: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
3056: # .&Apache::loncommon::help_open_topic('Caching')
3057: # .'</p>';
1.486 www 3058: $result.=&Apache::loncommon::head_subbox(
3059: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 3060: .&Apache::lonhtmlcommon::add_item_funclist(
3061: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
3062: .&mt('Edit').'</a>')
1.486 www 3063: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 3064:
1.193 www 3065: }
3066: return $result;
3067: }
3068:
3069: sub end_simpleeditbutton {
3070: return '';
1.45 albertel 3071: }
1.34 albertel 3072:
1.428 raeburn 3073: sub practice_problem_header {
3074: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
3075: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
3076: '</span>';
3077: }
3078:
1.479 raeburn 3079: sub randomizetry_problem_header {
3080: my ($problemstatus,$reqtries) = @_;
3081: my ($header,$text);
3082: if ($reqtries > 1) {
3083: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
3084: if (($problemstatus eq 'no') ||
3085: ($problemstatus eq 'no_feedback_ever')) {
3086: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3087: } else {
3088: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3089: }
3090: } else {
3091: $header = &mt('New Problem Variation Each Try');
3092: if (($problemstatus eq 'no') ||
3093: ($problemstatus eq 'no_feedback_ever')) {
3094: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
3095:
3096: } else {
3097: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
3098: }
3099: }
3100: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
3101: '<span class="LC_info">'.$text.'</span><hr />';
3102: }
3103:
3104: sub randomizetry_part_header {
3105: my ($problemstatus,$reqtries,$num) = @_;
3106: my ($header,$text);
3107: if ($reqtries eq 'none') {
3108: $header = &mt('No Question Variation');
3109: $text = &mt('For this question there will no new variation after a try.');
3110: } elsif ($reqtries > 1) {
3111: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
3112: if (($problemstatus eq 'no') ||
3113: ($problemstatus eq 'no_feedback_ever')) {
3114: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3115: } else {
3116: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3117: }
3118: } else {
3119: $header = &mt('New Question Variation For Each Try');
3120: if (($problemstatus eq 'no') ||
3121: ($problemstatus eq 'no_feedback_ever')) {
3122: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
3123: } else {
3124: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
3125: }
3126: }
3127: my $output;
3128: if ($num > 1) {
3129: $output .= '<hr />';
3130: }
3131: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
3132: '<span class="LC_info">'.$text.'</span><br /><br />';
3133: return $output;
3134: }
3135:
1.1 albertel 3136: 1;
3137: __END__
1.435 jms 3138:
3139: =pod
3140:
3141: =back
3142:
3143: =cut
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to structuretags.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / homework