Annotation of loncom/homework/structuretags.pm, revision 1.512.2.13.4.4
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.512.2.13.4. (raeburn 4:): # $Id: structuretags.pm,v 1.512.2.13.4.3 2018/03/28 10:29:54 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 );
1.512.2.13.4. (raeburn 66:): use HTML::Entities();
1.356 www 67: use lib '/home/httpd/lib/perl/';
68: use LONCAPA;
69:
1.78 harris41 70: BEGIN {
1.469 www 71: &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 72: }
73:
1.500 foxr 74:
75: #---------------------------------------------------------------------------------
76: #
77: # This section of code deals with hyphenation management.
78: # We must do three things:
79: # - keep track fo the desired languages to alter the header.
80: # - provide hyphenation selection as needed by each language that appears in the
81: # text.
82: # - Provide the header text needed to make available the desired hyphenations.
83: #
84: #
85:
86: # Hash whose keys are the languages encountered in the document/resource.
87: #
88:
89: my %languages_required;
90: ##
91: # Given a language selection as input returns a chunk of LaTeX that
92: # selects the required hyphenator.
93: #
94: # @param language - the language being selected.
95: # @return string
96: # @retval The LaTeX needed to select the hyphenation appropriate to the language.
97: #
98: sub select_hyphenation {
99: my $language = shift;
100:
101: $language = &Apache::loncommon::latexlanguage($language); # Translate -> latex language.
102:
103: # If there is no latex language there's not much we can do:
104:
105: if ($language) {
106: &require_language($language);
107: my $babel_hyphenation = "\\selectlanguage{$language}";
108:
109: return $babel_hyphenation;
110: } else {
111: return '';
112: }
113: }
114: ##
115: # Selects hyphenation based on the current problem metadata.
116: # This requires that
117: # - There is a language metadata item set for the problem.
118: # - The language has a latex/babel hyphenation.
119: #
120: # @note: Uses &Apache::lonxml::request to locate the Uri associated with
121: # this problem.
122: # @return string (possibly empty).
123: # @retval If not empty an appropriate \selectlanguage{} directive.
124: #
125: sub select_metadata_hyphenation {
126: my $uri = $Apache::lonxml::request->uri;
127: my $language = &Apache::lonnet::metadata($uri, 'language');
128: my $latex_language = &Apache::loncommon::latexhyphenation($language);
129: if ($latex_language) {
130: return '\selectlanguage{'.$latex_language."}\n";
131: }
132: return ''; # no latex hyphenation or no lang metadata.
133: }
134:
135:
136: ##
137: # Clears the set of languages required by the document being rendered.
138: #
139: sub clear_required_languages {
140: %languages_required = ();
141: }
142: ##
143: # Allows an external client of this module to register a need for a language:
144: #
145: # @param LaTeX language required:
146: #
147: sub require_language {
148: my $language = shift;
149: $languages_required{$language} = 1;
150: }
151:
152: ##
153: # Provides the header for babel that indicates the languages
154: # the document requires.
155: # @return string
156: # @retval \usepackage[lang1,lang2...]{babel}
157: # @retval '' if there are no languages_required.
158: sub languages_header {
159: my $header ='';
160: my @languages = (keys(%languages_required));
161:
162: # Only generate the header if there are languages:
163:
164: if (scalar @languages) {
165: my $language_list = join(',', (@languages));
166: $header = '\usepackage['.$language_list."]{babel}\n";
167: }
168: return $header;
169: }
170:
171: #----------------------------------------------------------------------------------
172:
1.10 albertel 173: sub start_web {
1.326 albertel 174: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 175: if ($target ne 'edit' && $target ne 'modified') {
176: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
177: if ($target eq 'web' || $target eq 'webgrade') {
178: return $bodytext;
179: }
180: } elsif ($target eq "edit" ) {
181: my $bodytext =
182: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
183: my $result = &Apache::edit::tag_start($target,$token);
184: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
185: return $result;
186: } elsif ( $target eq "modified" ) {
187: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 188: }
189: return '';
1.10 albertel 190: }
191:
192: sub end_web {
1.44 ng 193: return '';
1.10 albertel 194: }
195:
196: sub start_tex {
1.326 albertel 197: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 198: my $result='';
1.383 albertel 199: if ($target ne 'edit' && $target ne 'modified') {
200: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
201: if ($target eq 'tex') {
1.434 foxr 202:
203: # If inside a table, occurrences of \\ must be removed;
204: # else the table blows up.
205:
206: if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
207: $bodytext =~ s/\\\\//g;
208: }
1.432 foxr 209: return $bodytext.'{}';
1.383 albertel 210: }
211: } elsif ($target eq "edit" ) {
212: my $bodytext =
213: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
214: my $result = &Apache::edit::tag_start($target,$token);
215: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
216: return $result;
217: } elsif ( $target eq "modified" ) {
218: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 219: }
1.198 sakharuk 220: return $result;;
1.10 albertel 221: }
222:
223: sub end_tex {
1.44 ng 224: return '';
1.9 albertel 225: }
226:
1.400 albertel 227: sub homework_js {
1.512.2.9 raeburn 228: my ($postsubmit,$timeout);
229: if (($env{'request.course.id'}) && ($env{'request.state'} ne 'construct')) {
230: my $crstype;
231: if (&Apache::loncommon::course_type() eq 'Community') {
232: $crstype = 'community';
233: } else {
234: if ($env{'course.'.$env{'request.course.id'}.'.internal.coursecode'}) {
235: $crstype = 'official';
236: } elsif ($env{'course.'.$env{'request.course.id'}.'.internal.textbook'}) {
237: $crstype = 'textbook';
238: } else {
239: $crstype = 'unofficial';
240: }
241: }
242: $postsubmit = $env{'course.'.$env{'request.course.id'}.'.internal.postsubmit'};
243: if ($postsubmit eq '') {
244: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
245: $postsubmit = $domdefs{'postsubmit'};
246: unless ($postsubmit eq 'off') {
247: $timeout = $domdefs{$crstype.'postsubtimeout'};
248: }
249: } elsif ($postsubmit eq '0') {
250: $postsubmit = 'off';
251: } elsif ($postsubmit eq '1') {
252: $postsubmit = 'on';
253: $timeout = $env{'course.'.$env{'request.course.id'}.'.internal.postsubtimeout'};
254: if ($timeout eq '') {
255: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
256: $timeout = $domdefs{$crstype.'postsubtimeout'};
257: }
258: }
259: if ($timeout eq '') {
260: $timeout = 60;
261: }
262: } else {
263: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'request.role.domain'});
264: $postsubmit = $domdefs{'postsubmit'};
265: unless ($postsubmit eq 'off') {
266: $timeout = 60;
267: }
268: }
269: my $jstimeout = 0;
270: if ($timeout) {
271: $jstimeout = 1000 * $timeout;
272: }
1.400 albertel 273: return &Apache::loncommon::resize_textarea_js().
1.512.2.11 raeburn 274: &Apache::loncommon::colorfuleditor_js().
1.416 raeburn 275: &setmode_javascript().
1.512.2.9 raeburn 276: <<"JS";
1.400 albertel 277: <script type="text/javascript">
1.483 raeburn 278: // <![CDATA[
1.494 raeburn 279: function setSubmittedPart (part,prefix) {
280: if (typeof(prefix) == 'undefined') {
281: this.document.lonhomework.submitted.value="part_"+part;
282: } else {
283: for (var i=0;i<this.document.lonhomework.elements.length;i++) {
284: if (this.document.lonhomework.elements[i].name == prefix+'submitted') {
285: this.document.lonhomework.elements[i].value="part_"+part;
286: }
287: }
288: }
1.400 albertel 289: }
290:
1.512.2.9 raeburn 291: function disableAutoComplete (id) {
292: var field = document.getElementById(id);
293: if (field != null && field != undefined){
294: if ('autocomplete' in field) {
295: field.autocomplete = "off";
296: } else {
297: field.setAttribute("autocomplete", "off");
298: }
299: }
300: }
301:
1.400 albertel 302: function image_response_click (which, e) {
303: init_geometry();
304: if (!e) { e = window.event; } //IE
305: var input_element = document.lonhomework.elements[which];
1.401 albertel 306: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 307: var token = token_element.value;
1.401 albertel 308: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 309: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
310: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
311: var click = x+':'+y;
312: input_element.value = click;
1.485 raeburn 313: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
1.400 albertel 314: }
1.512.2.9 raeburn 315:
316: var submithandled = 0;
317: var keypresshandled = 0;
318: var postsubmit = '$postsubmit';
319:
320: \$(document).ready(function(){
321: if (postsubmit != 'off') {
322: \$(document).keypress(function(event){
323: var keycode = (event.keyCode ? event.keyCode : event.which);
324: if ((keycode == '13') && (keypresshandled == 0)) {
325: if ( \$( document.activeElement ).hasClass("LC_textline") ) {
326: keypresshandled = 1;
327: var idsArray = \$( document.activeElement ).attr("id").split(/HWVAL_/);
328: if (idsArray.length) {
329: event.preventDefault();
330: var itemsArray = idsArray[1].split(/_/);
331: var buttonId = idsArray[0]+'submit_'+itemsArray[0];
332: \$("#"+buttonId).trigger("click");
333: }
334: }
335: }
336: });
337:
338: \$(document).delegate('form :submit', 'click', function( event ) {
339: if ( \$( this ).hasClass( "LC_hwk_submit" ) ) {
340: var buttonId = this.id;
341: var timeout = $jstimeout;
342: if (submithandled == 0) {
343: submithandled = 1;
344: \$( "#msg_"+buttonId ).css({"display": "inline","background-color": "#87cefa",
345: "color": "black","padding": "2px"}) ;
346: if (( \$(this.form).id == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
347: if (buttonId != "all_submit") {
348: \$( ".LC_status_"+buttonId ).hide();
349: if (( "#"+buttonId+"_pressed" ).length) {
350: \$( "#"+buttonId+"_pressed" ).val( "1" );
351: }
352: }
353: } else {
354: \$( ".LC_status_"+buttonId ).hide();
355: }
356: \$(this.form).submit();
357: \$( ".LC_hwk_submit" ).prop( "disabled", true);
358: \$( ".LC_textline" ).prop( "readonly", "readonly");
359: event.preventDefault();
360:
361: if (timeout > 0) {
362: setTimeout(function(){
363: \$( "#msg_"+buttonId ).css({"display": "none"});
364: if (( \$(this.form).id == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
365: if (buttonId != "all_submit") {
366: if (( "#"+buttonId+"_pressed" ).length) {
367: \$( "#"+buttonId+"_pressed" ).val( "" );
368: }
369: }
370: }
371: \$( ".LC_hwk_submit" ).prop( "disabled", false);
372: \$( ".LC_textline" ).prop( "readonly", false);
373: submithandled = 0;
374: keypresshandled = 0;
375: }, timeout);
376: }
377: return true;
378: }
379: }
380: });
381: }
382: });
383:
1.483 raeburn 384: // ]]>
1.400 albertel 385: </script>
386: JS
387: }
388:
1.416 raeburn 389: sub setmode_javascript {
390: return <<"ENDSCRIPT";
391: <script type="text/javascript">
1.485 raeburn 392: // <![CDATA[
1.416 raeburn 393: function setmode(form,probmode) {
1.512.2.13 raeburn 394: var initial = form.problemmode.value;
1.416 raeburn 395: form.problemmode.value = probmode;
396: form.submit();
1.512.2.13 raeburn 397: form.problemmode.value = initial;
1.416 raeburn 398: }
1.485 raeburn 399: // ]]>
1.416 raeburn 400: </script>
401: ENDSCRIPT
402: }
403:
1.48 albertel 404: sub page_start {
1.345 albertel 405: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
406: $extra_head)=@_;
1.159 albertel 407: my %found;
1.207 albertel 408: foreach my $taginside (@$tagstack) {
1.159 albertel 409: foreach my $taglookedfor ('html','body','form') {
410: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
411: }
412: }
413:
1.343 albertel 414: if ($target eq 'tex') {
415: return
416: &Apache::londefdef::start_html($target,$token,$tagstack,
417: $parstack,$parser,$safeeval);
418: }
419:
1.474 raeburn 420: $extra_head .= &homework_js().
421: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
422: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
1.512.2.12 raeburn 423: my %textarea_args;
424: if (($env{'request.state'} ne 'construct') ||
425: ($env{'environment.nocodemirror'})) {
426: %textarea_args = (
1.474 raeburn 427: dragmath => 'math',
428: );
1.512.2.12 raeburn 429: }
1.474 raeburn 430: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 431: }
1.478 raeburn 432: my $is_task = ($env{'request.uri'} =~ /\.task$/);
1.512.2.9 raeburn 433: my ($needs_upload,$partlist);
1.495 raeburn 434: my ($symb)= &Apache::lonnet::whichuser();
435: my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
1.478 raeburn 436: if ($is_task) {
1.495 raeburn 437: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
1.493 raeburn 438: } else {
439: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.uploadedfiletypes") ne '') {
1.495 raeburn 440: unless ($env{'request.state'} eq 'construct') {
441: my $navmap = Apache::lonnavmaps::navmap->new();
442: if (ref($navmap)) {
443: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 444: my $is_page;
445: if (ref($mapres)) {
446: $is_page = $mapres->is_page();
447: }
448: unless ($is_page) {
1.495 raeburn 449: $needs_upload = 1;
450: }
1.512.2.9 raeburn 451: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
452: my $res = $navmap->getBySymb($symb);
453: if (ref($res)) {
454: $partlist = $res->parts();
455: }
456: }
1.495 raeburn 457: }
458: }
1.493 raeburn 459: } else {
460: unless ($env{'request.state'} eq 'construct') {
461: my $navmap = Apache::lonnavmaps::navmap->new();
462: if (ref($navmap)) {
1.495 raeburn 463: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 464: my $is_page;
465: if (ref($mapres)) {
466: $is_page = $mapres->is_page();
467: }
1.512.2.9 raeburn 468: if ($is_page) {
469: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
470: my $res = $navmap->getBySymb($symb);
471: if (ref($res)) {
472: $partlist = $res->parts();
473: }
474: }
475: } else {
1.495 raeburn 476: my $res = $navmap->getBySymb($symb);
477: if (ref($res)) {
1.512.2.9 raeburn 478: $partlist = $res->parts();
1.495 raeburn 479: if (ref($partlist) eq 'ARRAY') {
480: foreach my $part (@{$partlist}) {
481: my @types = $res->responseType($part);
482: my @ids = $res->responseIds($part);
483: for (my $i=0; $i < scalar(@ids); $i++) {
484: if ($types[$i] eq 'essay') {
485: my $partid = $part.'_'.$ids[$i];
486: if (&Apache::lonnet::EXT("resource.$partid.uploadedfiletypes") ne '') {
487: $needs_upload = 1;
488: last;
489: }
1.493 raeburn 490: }
491: }
492: }
1.495 raeburn 493: }
494: }
1.493 raeburn 495: }
496: }
497: }
498: }
1.495 raeburn 499: if ($needs_upload) {
500: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
501: }
1.478 raeburn 502: }
1.425 raeburn 503:
1.344 albertel 504: my %body_args;
505: if (defined($found{'html'})) {
506: $body_args{'skip_phases'}{'head'}=1;
507: } else {
1.343 albertel 508:
1.345 albertel 509: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 510:
1.379 albertel 511: $extra_head .= &Apache::londefdef::generate_css_links();
512:
1.384 albertel 513: if ($env{'request.state'} eq 'construct') {
1.343 albertel 514: $extra_head.=&Apache::edit::js_change_detection().
515: "<script type=\"text/javascript\">\n".
516: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
517: &Apache::loncommon::browser_and_searcher_javascript().
518: "\n</script>\n";
1.512.2.9 raeburn 519: if ($target eq 'edit') {
520: $extra_head .= &Apache::edit::js_update_linknum();
521: }
1.343 albertel 522: }
1.159 albertel 523: }
1.343 albertel 524:
1.446 bisitz 525: my $pageheader = '';
1.344 albertel 526: if (defined($found{'body'})) {
527: $body_args{'skip_phases'}{'body'}=1;
528: } elsif (!defined($found{'body'})
529: && $env{'request.state'} eq 'construct') {
1.343 albertel 530: if ($target eq 'web' || $target eq 'edit') {
1.512.2.3 raeburn 531: # Breadcrumbs for Authoring Space
1.450 bisitz 532: &Apache::lonhtmlcommon::clear_breadcrumbs();
533: &Apache::lonhtmlcommon::add_breadcrumb({
1.512.2.3 raeburn 534: 'text' => 'Authoring Space',
1.497 raeburn 535: 'href' => &Apache::loncommon::authorspace($env{'request.uri'}),
1.450 bisitz 536: });
1.460 droeschl 537: # breadcrumbs (and tools) will be created
538: # in start_page->bodytag->innerregister
539:
1.450 bisitz 540: # FIXME Where are we?
541: # &Apache::lonhtmlcommon::add_breadcrumb({
542: # 'text' => 'Problem Editing', # 'Problem Testing'
543: # 'href' => '',
544: # });
1.460 droeschl 545: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 546: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 547: }
1.272 albertel 548: } elsif (!defined($found{'body'})) {
1.343 albertel 549: my %add_entries;
1.159 albertel 550: my $background=&Apache::lonxml::get_param('background',$parstack,
551: $safeeval);
1.343 albertel 552: if ($background ne '' ) {
553: $add_entries{'background'} = $background;
554: }
1.344 albertel 555:
1.290 albertel 556: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
557: $safeeval);
1.446 bisitz 558: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 559:
1.446 bisitz 560: $body_args{'bgcolor'} = $bgcolor;
561: # $body_args{'no_title'} = 1;
562: $body_args{'force_register'} = 1;
563: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 564: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 565: $body_args{'only_body'} = 1;
1.512.2.7 raeburn 566: } elsif ($target eq 'web') {
567: $body_args{'print_suppress'} = 1;
1.446 bisitz 568: }
1.344 albertel 569: }
1.365 albertel 570: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 571: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
572: \%body_args);
1.446 bisitz 573: $page_start .= $pageheader;
1.462 raeburn 574: if (!defined($found{'body'})
575: && $env{'request.state'} ne 'construct'
576: && ($target eq 'web' || $target eq 'webgrade')) {
577:
578: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
579: if ($symb eq '' && !$publicuser) {
580: $page_start .= '<p class="LC_info">'
581: .&mt('Browsing resource, all submissions are temporary.')
582: .'</p>';
1.457 bisitz 583: }
1.344 albertel 584: }
585:
1.409 albertel 586: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 587: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 588: }
589: my $form_tag_start;
590: if (!defined($found{'form'})) {
1.337 albertel 591: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 592: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 593: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 594: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 595: $form_tag_start.=$uri.'" ';
596: if ($target eq 'edit') {
597: $form_tag_start.=&Apache::edit::form_change_detection();
598: }
1.493 raeburn 599: my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
600: my ($path,$multiresp) =
601: &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
1.495 raeburn 602: if (($is_task) || ($needs_upload)) {
603: $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
1.478 raeburn 604: }
1.368 albertel 605: $form_tag_start.='>'."\n";
1.355 albertel 606:
607: if ($symb =~ /\S/) {
608: $symb=
609: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
610: $form_tag_start.=
1.368 albertel 611: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 612: }
1.159 albertel 613: }
1.512.2.9 raeburn 614: return ($page_start,$form_tag_start,$partlist);
1.105 albertel 615: }
616:
1.141 matthew 617: #use Time::HiRes();
1.105 albertel 618: sub get_resource_name {
1.159 albertel 619: my ($parstack,$safeeval)=@_;
1.388 foxr 620: my $name;
1.204 albertel 621: if (defined($Apache::lonhomework::name)) {
1.388 foxr 622: $name = $Apache::lonhomework::name;
623: } else {
624: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 625: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 626: if ($name eq '') {
627: $name=&Apache::lonnet::EXT('resource.title');
628: if ($name eq 'con_lost') { $name = ''; }
629: }
630: if ($name!~/\S+/) {
631: $name=$env{'request.uri'};
632: $name=~s-.*/([^/]+)$-$1-;
633: }
634: # The name has had html tags escaped:
635:
636: $name=~s/</</gs;
637: $name=~s/>/>/gs;
638:
639: $Apache::lonhomework::name=$name;
1.204 albertel 640: }
1.159 albertel 641: return $name;
1.105 albertel 642: }
643:
644: sub setup_rndseed {
1.512.2.9 raeburn 645: my ($safeeval,$target,$probpartlist)=@_;
1.367 albertel 646: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 647: my ($questiontype,$set_safespace,$rndseed);
648: if ($target eq 'analyze') {
649: $questiontype = $env{'form.grade_questiontype'};
650: }
651: unless (defined($questiontype)) {
652: $questiontype = $Apache::lonhomework::type;
653: }
1.512.2.13.4. (raeburn 654:): if (($env{'request.state'} eq "construct")
655:): || ($symb eq '')
656:): || ($Apache::lonhomework::type eq 'practice')
657:): || ($Apache::lonhomework::history{'resource.CODE'})
658:): || (($env{'form.code_for_randomlist'}) && ($target eq 'analyze'))) {
1.316 www 659: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 660: ['rndseed']);
1.284 albertel 661: $rndseed=$env{'form.rndseed'};
1.159 albertel 662: if (!$rndseed) {
1.162 albertel 663: $rndseed=$Apache::lonhomework::history{'rndseed'};
664: if (!$rndseed) {
665: $rndseed=time;
666: }
1.512.2.13.4. (raeburn 667:): unless ($env{'form.code_for_randomlist'}) {
668:): $env{'form.rndseed'}=$rndseed;
669:): }
1.162 albertel 670: }
1.479 raeburn 671: if (($env{'request.state'} eq "construct") &&
672: ($Apache::lonhomework::type eq 'randomizetry')) {
673: my $tries = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
674: if ($tries) {
675: $rndseed += $tries;
676: }
1.480 raeburn 677: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 678: }
1.374 albertel 679: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
680: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 681: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 682: srand(time);
683: $rndseed=int(rand(2100000000));
1.284 albertel 684: $env{'form.rndseed'}=$rndseed;
685: delete($env{'form.resetdata'});
686: delete($env{'form.newrandomization'});
1.159 albertel 687: }
1.488 www 688: $rndseed=~s/\,/\:/g;
689: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 690: if (defined($rndseed)) {
691: my ($c1,$c2)=split(/\:/,$rndseed);
692: unless ($c2) { $c2=0; }
693: unless (($c1==int($c1)) && ($c2==int($c2))) {
694: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
695: }
1.187 albertel 696: }
1.512.2.13.4. (raeburn 697:): if (($env{'form.code_for_randomlist'}) && ($target eq 'analyze')) {
698:): $env{'form.CODE'} = $env{'form.code_for_randomlist'};
699:): $rndseed=&Apache::lonnet::rndseed();
700:): undef($env{'form.CODE'});
701:): } elsif ($Apache::lonhomework::history{'resource.CODE'}) {
1.247 albertel 702: $rndseed=&Apache::lonnet::rndseed();
703: }
1.479 raeburn 704: $set_safespace = 1;
705: } elsif ($questiontype eq 'randomizetry') {
706: if ($target eq 'analyze') {
707: if (defined($env{'form.grade_rndseed'})) {
708: $rndseed = $env{'form.grade_rndseed'};
709: }
710: }
711: unless (($target eq 'analyze') && (defined($rndseed))) {
712: $rndseed=&Apache::lonnet::rndseed();
1.512.2.9 raeburn 713: my $partfortries = $Apache::inputtags::part;
714: if (ref($probpartlist) eq 'ARRAY') {
715: if ((@{$probpartlist} == 1) && ($probpartlist->[0] ne $Apache::inputtags::part)) {
716: $partfortries = $probpartlist->[0];
717: }
718: }
719: my $curr_try = $Apache::lonhomework::history{"resource.$partfortries.tries"};
1.479 raeburn 720: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
721: $curr_try ++;
722: }
723: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
724: $rndseed = $1;
725: }
726: if ($curr_try) {
1.512.2.9 raeburn 727: my $reqtries = &Apache::lonnet::EXT("resource.$partfortries.randomizeontries");
1.479 raeburn 728: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
729: my $inc = int(($curr_try-1)/$reqtries);
730: $rndseed += $inc;
731: } else {
732: $rndseed += $curr_try;
733: }
734: }
735: }
736: $set_safespace = 1;
1.512.2.9 raeburn 737: if ($target eq 'grade') {
738: $Apache::lonhomework::rawrndseed = $rndseed;
739: }
1.479 raeburn 740: }
741: if ($set_safespace) {
742: if ($safeeval) {
743: &Apache::lonxml::debug("Setting rndseed to $rndseed");
744: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
745: }
746: }
747: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
748: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 749: }
750: return $rndseed;
1.105 albertel 751: }
752:
1.268 albertel 753: sub remember_problem_state {
754: return '
1.284 albertel 755: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
756: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
757: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 758: }
759:
1.487 www 760: sub problem_edit_action_button {
761: my ($name,$action,$accesskey,$text,$flag)=@_;
762: my $actionscript="setmode(this.form,'$action')";
763: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
764: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
765: }
766:
1.423 www 767: sub problem_edit_buttons {
1.487 www 768: my ($mode)=@_;
1.512.2.11 raeburn 769: # Buttons that save
770: my $result = '<div style="float:right">';
771: if ($mode eq 'editxml') {
772: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
773: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
774: } else {
775: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
776: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
777: }
778: $result.="\n</div>\n";
1.487 www 779: # Buttons that do not save
1.512.2.11 raeburn 780: $result .= '<div>'.
1.487 www 781: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
782: if ($mode eq 'editxml') {
783: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
784: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
1.512.2.11 raeburn 785: if ($env{'environment.nocodemirror'}) {
786: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
787: }
1.487 www 788: } else {
789: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
790: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
791: }
792: $result.="\n</div>";
793: return $result;
1.423 www 794: }
795:
796: sub problem_edit_header {
1.512.2.11 raeburn 797: my ($mode)=@_;
798: my $return = '<input type="hidden" name="submitted" value="edit" />'.
1.487 www 799: &remember_problem_state('edit').'
1.512.2.11 raeburn 800: <div class="LC_edit_problem_header">
801: <div class="LC_edit_problem_header_title">
802: '.&mt('Problem Editing').$mode.&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
803: </div><div class="LC_edit_actionbar" id="actionbar">'.
804: '<input type="hidden" name="problemmode" value="saveedit" />'.
805: &problem_edit_buttons();
806:
807: $return .= '</div></div>' . &Apache::lonxml::message_location();
808: $return .= '<link rel="stylesheet" href="/adm/codemirror/codemirror-combined.css" />
809: <script type="text/javascript" src="/adm/codemirror/codemirror-compressed-colorful.js"></script>';
810:
811: $return .= '<script type="text/javascript" src="/adm/jQuery/addons/jquery-scrolltofixed.js"></script>
812: <script type="text/javascript">
813: // unless internet explorer
814: if (!(window.navigator.appName == "Microsoft Internet Explorer" && (document.documentMode || document.compatMode))){
815: $(document).ready(
816: function() {
817: $(\'.LC_edit_actionbar\').scrollToFixed(
818: {
819: fixed: function(){
820: //$(this).find(\'.LC_edit_actionbar\').css(\'height\', \'31px\');
821: $(this).find(\'.LC_edit_actionbar\');
822: }
823: }
824: );
825: }
826: );
827: }
828: </script>
829: <table id="LC_edit_problem_colorful" border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
830: return $return;
1.105 albertel 831: }
832:
1.512.2.11 raeburn 833:
1.105 albertel 834: sub problem_edit_footer {
1.512.2.11 raeburn 835: my $resource = $env{'request.ambiguous'};
1.412 albertel 836: return '</td></tr></table><br />
837: <div class="LC_edit_problem_footer">
1.453 bisitz 838: <hr />'.
1.423 www 839: &problem_edit_buttons().'
1.459 bisitz 840: <hr style="clear:both;" />
1.512.2.11 raeburn 841: <script type="text/javascript">
842: restoreState("'.$resource.'");
843: restoreScrollPosition("'.$resource.'");
844: </script>
1.412 albertel 845: </div>
846: '.
1.342 albertel 847: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 848: }
849:
1.235 albertel 850: sub option {
851: my ($value,$name) = @_;
852: my $result ="<option value='".$value."' ";
1.284 albertel 853: if ($env{'form.'.$name} eq $value) {
1.235 albertel 854: $result.=" selected='on' ";
855: }
856: $result.='>';
857: return $result;
858: }
859:
1.105 albertel 860: sub problem_web_to_edit_header {
1.159 albertel 861: my ($rndseed)=@_;
1.406 albertel 862: my $result .= '<div class="LC_edit_problem_header">';
863:
864: if (!$Apache::lonhomework::parsing_a_task) {
865: $result .=
866: '<div class="LC_edit_problem_header_title">'.
867: &mt('Problem Testing').
868: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
869: '</div>';
870: } else {
871: $result .=
872: '<div class="LC_edit_problem_header_title">'.
873: &mt('Task Testing').
874: '</div>';
875: }
876:
1.315 albertel 877: my $show_all_foils_text =
878: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 879: &mt('Show All Instances')
880: : &mt('Show All Foils');
1.315 albertel 881:
1.452 bisitz 882: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
883: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 884: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 885: $show_all.= ' /> '.$show_all_foils_text
886: .'</label></span>';
1.406 albertel 887:
888:
1.384 albertel 889:
1.406 albertel 890: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 891: if (!$Apache::lonhomework::parsing_a_task) {
892: $result.="
1.406 albertel 893: <div class='LC_edit_problem_header_row1'>
894: <span class=\"LC_nobreak\">
1.405 albertel 895: ".&mt("Problem Status:")."
1.235 albertel 896: <select name='problemstate'>
1.270 albertel 897: <option value=''></option>
1.235 albertel 898: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
899: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
900: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
901: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
902: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
903: </select>
1.406 albertel 904: </span>
905: <span class=\"LC_nobreak\">
1.405 albertel 906: ".&mt("Problem Type:")."
1.235 albertel 907: <select name='problemtype'>
1.270 albertel 908: <option value=''></option>
1.512.2.1 raeburn 909: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 910: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 911: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 912: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
913: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
914: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 915: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 916: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 917: </select>
1.406 albertel 918: </span>
919: $show_all
920: </div>
921: <div class='LC_edit_problem_header_row2'>
922: <span class=\"LC_nobreak\">
1.405 albertel 923: ".&mt("Feedback Mode:")."
1.235 albertel 924: <select name='problemstatus'>
925: <option value=''></option>
1.242 albertel 926: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.512.2.6 raeburn 927: ".&option('no', 'problemstatus').&mt("Don't Show Incorrect/Correct Feedback")."</option>
1.405 albertel 928: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 929: </select>
1.406 albertel 930: </span>
931: ";
932:
1.376 albertel 933: } elsif ($Apache::lonhomework::parsing_a_task) {
934: $result.="
1.406 albertel 935: <div class='LC_edit_problem_header_row1'>
936: <span class=\"LC_nobreak\">
1.405 albertel 937: ".&mt("Problem Status:")."
1.376 albertel 938: <select name='problemstate'>
939: <option value=''></option>
940: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
941: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
942: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
943: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
944: </select>
1.406 albertel 945: </span>
946: $show_all
947: ";
948: }
949: $result.='
950: <span class="LC_nobreak">
951: '.&mt('Apply style file: ').'
952: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
953: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
954: </span>
1.422 www 955: </div>
956: <div class="LC_edit_problem_header_row1">'.
957: &Apache::lonxml::renderingoptions().'
1.406 albertel 958: </div>
959: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
960: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
961: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
962: </div>
1.453 bisitz 963: <hr />
1.406 albertel 964: <div class="LC_edit_problem_header_randomize_row">
965: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
966: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 967: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 968: $rndseed.'"
969: onchange="javascript:document.lonhomework.changerandseed.click()" />';
970:
971: if (!$Apache::lonhomework::parsing_a_task) {
972: my $numtoanalyze=$env{'form.numtoanalyze'};
973: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 974: $result .= '<span class="LC_nobreak">'.
975: &mt('[_1] for [_2] versions.',
1.416 raeburn 976: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 977: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
978: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 979: $numtoanalyze.'" size="5" />').
980: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
981: '</span>';
982:
1.313 albertel 983: }
1.406 albertel 984:
985: $result.='
986: </div>
1.453 bisitz 987: <hr />
1.447 bisitz 988: <div>';
1.416 raeburn 989: $result.='<input type="hidden" name="problemmode" value="view" />';
990: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
991: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
992: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
993: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 994: $result.='
995: </div>
1.453 bisitz 996: <hr />
1.409 albertel 997: '.&Apache::lonxml::message_location().'
1.406 albertel 998: </div>';
1.159 albertel 999: return $result;
1.48 albertel 1000: }
1001:
1.65 albertel 1002: sub initialize_storage {
1.357 albertel 1003: my ($given_symb) = @_;
1.353 albertel 1004: undef(%Apache::lonhomework::results);
1005: undef(%Apache::lonhomework::history);
1.357 albertel 1006: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1007: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 1008:
1009: # anonymous users (CODEd exams) have no data
1010: if ($name eq 'anonymous'
1011: && !defined($domain)) {
1012: return;
1013: }
1014:
1.333 albertel 1015: if ($env{'request.state'} eq 'construct'
1016: || $symb eq ''
1017: || $Apache::lonhomework::type eq 'practice') {
1018:
1019: my $namespace = $symb || $env{'request.uri'};
1020: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 1021: ($env{'form.resetdata'} eq &mt('New Problem Variation')
1022: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 1023: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1024: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
1025: &Apache::lonxml::debug("Attempt reset");
1026: }
1.159 albertel 1027: %Apache::lonhomework::history=
1.333 albertel 1028: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.512.2.9 raeburn 1029: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1030: &Apache::lonxml::debug("Return message of $temp");
1031: } else {
1032: %Apache::lonhomework::history=
1033: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1034: }
1.353 albertel 1035:
1.159 albertel 1036: #ignore error conditions
1.512.2.9 raeburn 1037: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1038: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 1039: }
1040:
1.435 jms 1041: =pod
1042:
1043: =item finalize_storage()
1044:
1.512.2.9 raeburn 1045: Stores away the result hash to a student's environment;
1046: checks form.grade_ for specific values, otherwise stores
1047: to the running user's environment.
1048:
1049: &check_correctness_changes() is called in two circumstances
1050: in which the results hash is to be stored permanently, for
1051: grading triggered by a student's submission, where feedback on
1052: correctness is to be provided to the student.
1053:
1054: 1. Immediately prior to storing the results hash
1055:
1056: To handle the case where a student's submission (and award) were
1057: stored after history was retrieved in &initialize_storage(), e.g.,
1058: if a student submitted answers in quick succession (e.g., from
1059: multiple tabs). &Apache::inputtags::hidealldata() is called for
1060: any parts with out-of-order storage (i.e., correct then incorrect,
1061: where awarded >= 1 when correct).
1062:
1063: 2. Immediately after storing the results hash
1064:
1065: To handle the case where lond on the student's homeserver returns
1066: delay:N -- where N is the number of transactions between the last
1067: retrieved in &initialize_storage() and the last stored immediately
1068: before permanent storage of the current transaction via
1069: lond::store_handler(). &Apache::grades::makehidden() is called
1070: for any parts with out-of-order storage (i.e., correct then incorrect,
1071: where awarded >= 1 when correct).
1072:
1073: Will call &store_aggregates() to increment totals for attempts,
1074: students, and corrects, if running user has student role.
1.435 jms 1075:
1076: =cut
1077:
1078:
1.65 albertel 1079: sub finalize_storage {
1.357 albertel 1080: my ($given_symb) = @_;
1.159 albertel 1081: my $result;
1.289 albertel 1082: if (%Apache::lonhomework::results) {
1.323 albertel 1083: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
1084: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 1085: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1086: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 1087: if ($env{'request.state'} eq 'construct'
1088: || $symb eq ''
1089: || $Apache::lonhomework::type eq 'practice') {
1090: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 1091: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 1092: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 1093: $namespace,'',$domain,$name);
1.159 albertel 1094: &Apache::lonxml::debug('Construct Store return message:'.$result);
1095: } else {
1.512.2.9 raeburn 1096: my ($laststore,$checkedparts,@parts,%postcorrect);
1097: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1098: (!$Apache::lonhomework::scantronmode) && (!defined($env{'form.grade_symb'})) &&
1099: (!defined($env{'form.grade_courseid'}))) {
1100: if ($Apache::lonhomework::history{'version'}) {
1101: $laststore = $Apache::lonhomework::history{'version'}.'='.
1102: $Apache::lonhomework::history{'timestamp'};
1103: } else {
1104: $laststore = '0=0';
1105: }
1106: my %record = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1107: if ($record{'version'}) {
1108: my ($newversion,$oldversion,$oldtimestamp);
1109: if ($Apache::lonhomework::history{'version'}) {
1110: $oldversion = $Apache::lonhomework::history{'version'};
1111: $oldtimestamp = $Apache::lonhomework::history{'timestamp'};
1112: } else {
1113: $oldversion = 0;
1114: $oldtimestamp = 0;
1115: }
1116: if ($record{'version'} > $oldversion) {
1117: if ($record{'timestamp'} >= $oldtimestamp) {
1118: $laststore = $record{'version'}.'='.$record{'timestamp'};
1119: $newversion = $record{'version'} + 1;
1120: $checkedparts = 1;
1121: foreach my $key (keys(%Apache::lonhomework::results)) {
1122: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1123: my $part = $1;
1124: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1125: push(@parts,$part);
1126: }
1127: }
1128: }
1129: if (@parts) {
1130: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1131: \%record,\@parts,$newversion,
1132: $oldversion);
1133: if (@parts_to_hide) {
1134: foreach my $part (@parts_to_hide) {
1135: $postcorrect{$part} = 1;
1136: &Apache::inputtags::hidealldata($part);
1137: }
1138: }
1139: }
1140: }
1141: }
1142: }
1143: }
1.159 albertel 1144: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
1.512.2.9 raeburn 1145: $symb,$courseid,$domain,$name,$laststore);
1146: if ($result =~ /^delay\:(\d+)$/) {
1147: my $numtrans = $1;
1148: my ($oldversion) = split(/=/,$laststore);
1149: if ($numtrans) {
1150: my $newversion = $oldversion + 1 + $numtrans;
1151: my @possparts;
1152: if ($checkedparts) {
1153: foreach my $part (@parts) {
1154: unless ($postcorrect{$part}) {
1155: push(@possparts,$part);
1156: }
1157: }
1158: } else {
1159: foreach my $key (keys(%Apache::lonhomework::results)) {
1160: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1161: my $part = $1;
1162: unless ($postcorrect{$part}) {
1163: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1164: push(@possparts,$part);
1165: }
1166: }
1167: }
1168: }
1169: }
1170: if (@possparts) {
1171: my %newrecord = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1172: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1173: \%newrecord,\@possparts,$newversion,
1174: $oldversion);
1175: if (@parts_to_hide) {
1176: my $partslist = join(',',@parts_to_hide);
1177: &Apache::grades::makehidden($newversion,$partslist,\%newrecord,$symb,$domain,$name,1);
1178: }
1179: }
1180: }
1181: }
1.159 albertel 1182: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 1183: &store_aggregates($symb,$courseid);
1.159 albertel 1184: }
1.323 albertel 1185: } else {
1186: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 1187: }
1.159 albertel 1188: return $result;
1.65 albertel 1189: }
1190:
1.435 jms 1191: =pod
1192:
1.512.2.9 raeburn 1193: =item check_correctness_changes()
1194:
1195: For all parts for which current results contain a solved status
1196: of "incorrect_attempted", check if there was a transaction in which
1197: solved was set to "correct_by_student" in the time since the last
1198: transaction (retrieved when &initialize_storage() was called i.e.,
1199: when &start_problem() was called), unless:
1200: (a) questiontype parameter is set to survey or anonymous survey (+/- credit)
1201: (b) problemstatus is set to no or no_feedback_ever
1202: If such a transaction exists, and did not occur after "reset status"
1203: by a user with grading privileges, then the current transaction is an
1204: example of an out-of-order transaction (i.e., incorrect occurring after
1205: correct). Accordingly, the current transaction should be hidden.
1206:
1207: =cut
1208:
1209:
1210: sub check_correctness_changes {
1211: my ($symb,$courseid,$domain,$name,$record,$parts,$newversion,$oldversion) = @_;
1212: my @parts_to_hide;
1213: unless ((ref($record) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
1214: return @parts_to_hide;
1215: }
1216: if (@{$parts}) {
1217: my $usec;
1218: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1219: ($env{'request.course.id'} eq $courseid)) {
1220: $usec = $env{'request.course.sec'};
1221: } else {
1222: $usec = &Apache::lonnet::getsection($domain,$name,$courseid);
1223: }
1224: foreach my $id (@{$parts}) {
1225: next if (($Apache::lonhomework::results{'resource.'.$id.'.type'} =~ /survey/) ||
1226: (&Apache::lonnet::EXT("resource.$id.problemstatus",$symb,
1227: $domain,$name,$usec,undef,$courseid) =~ /^no/));
1228: my $reset;
1229: for (my $i=$newversion-1; $i>=$oldversion; $i--) {
1230: if (($record->{$i.':resource.'.$id.'.regrader'}) &&
1231: ($record->{$i.':resource.'.$id.'.tries'} eq '') &&
1232: ($record->{$i.':resource.'.$id.'.award'} eq '')) {
1233: $reset = 1;
1234: } elsif (($record->{$i.":resource.$id.solved"} eq 'correct_by_student') &&
1235: ($record->{$i.":resource.$id.awarded"} >= 1)) {
1236: unless ($reset) {
1237: push(@parts_to_hide,$id);
1238: last;
1239: }
1240: }
1241: }
1242: }
1243: }
1244: return @parts_to_hide;
1245: }
1246:
1247: =pod
1248:
1.435 jms 1249: item store_aggregates()
1250:
1251: Sends hash of values to be incremented in nohist_resourcetracker.db
1252: for the course. Increments total number of attempts, unique students
1253: and corrects for each part for an instance of a problem, as appropriate.
1254:
1255: =cut
1256:
1.285 raeburn 1257: sub store_aggregates {
1258: my ($symb,$courseid) = @_;
1.479 raeburn 1259: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 1260: my @parts;
1.288 albertel 1261: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
1262: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 1263: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 1264: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 1265: push(@parts, $1);
1.285 raeburn 1266: }
1267: }
1.286 albertel 1268: foreach my $part (@parts) {
1.470 raeburn 1269: if ($env{'request.role'} =~/^st/) {
1270: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
1271: eq 'APPROX_ANS' ||
1272: $Apache::lonhomework::results{'resource.'.$part.'.award'}
1273: eq 'EXACT_ANS') {
1274: $aggregate{$symb."\0".$part."\0correct"} = 1;
1275: }
1276: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1277: $aggregate{$symb."\0".$part."\0users"} = 1;
1278: } else {
1279: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1280: if ($last_reset) {
1281: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1282: $aggregate{$symb."\0".$part."\0users"} = 1;
1283: }
1284: }
1285: }
1286: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 1287: }
1.470 raeburn 1288: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 1289: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
1290: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
1291: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
1292: $randtrycounter{$symb."\0".$part} = 1;
1293: } else {
1294: $anoncounter{$symb."\0".$part} = 1;
1295: }
1.470 raeburn 1296: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
1297: if ($needsrelease) {
1298: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
1299: if ($curr_required eq '') {
1.471 raeburn 1300: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1301: } else {
1302: my ($currmajor,$currminor) = split(/\./,$curr_required);
1303: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
1304: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 1305: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1306: }
1.292 raeburn 1307: }
1308: }
1.285 raeburn 1309: }
1310: }
1.512.2.9 raeburn 1311: if (keys(%aggregate) > 0) {
1.289 albertel 1312: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 1313: $cdomain,$cname);
1314: }
1.472 raeburn 1315: if (keys(%anoncounter) > 0) {
1.481 raeburn 1316: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
1317: $cdomain,$cname);
1.472 raeburn 1318: }
1.479 raeburn 1319: if (keys(%randtrycounter) > 0) {
1.481 raeburn 1320: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
1321: $cdomain,$cname);
1.479 raeburn 1322: }
1.292 raeburn 1323: }
1.289 albertel 1324:
1.65 albertel 1325: sub checkout_msg {
1.211 albertel 1326: my %lt=&Apache::lonlocal::texthash(
1327: 'resource'=>'The resource needs to be checked out',
1328: '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.',
1329: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
1.512.2.1 raeburn 1330: 'checkout'=>'Check out Exam for Viewing',
1331: 'checkout?'=>'Check out Exam?');
1.352 albertel 1332: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 1333: return (<<ENDCHECKOUT);
1.211 albertel 1334: <h2>$lt{'resource'}</h2>
1335: <p>$lt{'id_expln'}</p>
1.449 bisitz 1336: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 1337: <form name="checkout" method="post" action="$uri">
1.91 albertel 1338: <input type="hidden" name="doescheckout" value="yes" />
1.512.2.4 raeburn 1339: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onclick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 1340: </form>
1341: ENDCHECKOUT
1342: }
1343:
1.252 albertel 1344: sub firstaccess_msg {
1.253 albertel 1345: my ($time,$symb)=@_;
1.414 albertel 1346: my $result;
1347: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1348: if ($interval[1] eq 'map') {
1349: my ($map)=&Apache::lonnet::decode_symb($symb);
1350: my $foldertitle=&Apache::lonnet::gettitle($map);
1351:
1352: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 1353: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
1354: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1355: ,$foldertitle,$time)."</p>";
1.414 albertel 1356: } elsif ($interval[1] eq 'course') {
1357: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 1358: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 1359: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 1360: ,$course,$time)."</p>";
1.414 albertel 1361: } else {
1362: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1363: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1364: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1365: ,$title,$time)."</p>";
1.414 albertel 1366: }
1.352 albertel 1367: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1368: my $buttontext = &mt('Show Resource');
1369: my $timertext = &mt('Start Timer?');
1.512.2.13.4. (raeburn 1370:): my $shownsymb = &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb),'\'"<>&');
1.414 albertel 1371: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1372: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1373: <input type="hidden" name="markaccess" value="yes" />
1.512.2.13.4. (raeburn 1374:): <input type="hidden" name="symb" value="$shownsymb" />
1.512.2.4 raeburn 1375: <input type="button" name="accessbutton" value="$buttontext" onclick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1376: </form>
1377: ENDCHECKOUT
1.414 albertel 1378: return $result;
1.252 albertel 1379: }
1380:
1.204 albertel 1381: sub init_problem_globals {
1382: my ($type)=@_;
1383: #initialize globals
1.308 foxr 1384: # For problems, we start out in part 0 (outside a <part> tag).
1385: # and part 0 is used to describe the main body of the <problem>
1386: #
1.204 albertel 1387: if ($type eq 'problem') {
1388: $Apache::inputtags::part='0';
1389: @Apache::inputtags::partlist=('0');
1.405 albertel 1390: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1391: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1392:
1.266 albertel 1393: } elsif ($type eq 'library') {
1.204 albertel 1394: $Apache::inputtags::part='';
1395: @Apache::inputtags::partlist=();
1.405 albertel 1396: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1397: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1398:
1.304 albertel 1399: } elsif ($type eq 'Task') {
1400: $Apache::inputtags::part='0';
1401: @Apache::inputtags::partlist=('0');
1.405 albertel 1402: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1403: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1404: }
1.477 www 1405: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1406: @Apache::inputtags::responselist = ();
1407: @Apache::inputtags::importlist = ();
1408: @Apache::inputtags::previous=();
1409: @Apache::inputtags::previous_version=();
1.512.2.10 raeburn 1410: $Apache::inputtags::leniency='';
1.204 albertel 1411: $Apache::structuretags::printanswer='No';
1412: @Apache::structuretags::whileconds=();
1413: @Apache::structuretags::whilebody=();
1414: @Apache::structuretags::whileline=();
1415: $Apache::lonhomework::scantronmode=0;
1416: undef($Apache::lonhomework::name);
1.358 albertel 1417: undef($Apache::lonhomework::default_type);
1418: undef($Apache::lonhomework::type);
1.204 albertel 1419: }
1420:
1421: sub reset_problem_globals {
1422: my ($type)=@_;
1423: undef(%Apache::lonhomework::history);
1424: undef(%Apache::lonhomework::results);
1425: undef($Apache::inputtags::part);
1.512.2.10 raeburn 1426: undef($Apache::inputtags::leniency);
1.498 raeburn 1427: if ($type eq 'Task') {
1428: undef($Apache::inputtags::slot_name);
1.512.2.9 raeburn 1429: } elsif ($type eq 'problem') {
1430: undef($Apache::lonhomework::rawrndseed);
1.498 raeburn 1431: }
1.208 albertel 1432: #don't undef this, lonhomework.pm takes care of this, we use this to
1433: #detect if we try to do 2 problems in one file
1434: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1435: undef($Apache::lonhomework::name);
1.358 albertel 1436: undef($Apache::lonhomework::default_type);
1437: undef($Apache::lonhomework::type);
1438: undef($Apache::lonhomework::scantronmode);
1439: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1440: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1441: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1442: }
1443:
1.241 albertel 1444: sub set_problem_state {
1.240 albertel 1445: my ($part)=@_;
1.284 albertel 1446: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1447: $Apache::lonhomework::history{"resource.$part.solved"}=
1448: 'correct_by_student';
1449: }
1450: }
1451:
1.241 albertel 1452: sub get_problem_status {
1453: my ($part)=@_;
1.267 albertel 1454: my $problem_status;
1.284 albertel 1455: if ($env{'request.state'} eq 'construct' &&
1456: defined($env{'form.problemstatus'})) {
1457: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1458: } else {
1459: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1460: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1461: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1462: }
1463: return $problem_status;
1464: }
1465:
1.9 albertel 1466: sub start_problem {
1.326 albertel 1467: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1468:
1.311 foxr 1469: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1470: if (!$Apache::lonxml::metamode) {
1471: &Apache::lonxml::startredirection();
1472: }
1.311 foxr 1473:
1.308 foxr 1474: # Problems don't nest and we don't allow more than one <problem> in
1475: # a .problem file.
1476: #
1.184 albertel 1477: if ( $Apache::inputtags::part ne '' ||
1478: $Apache::lonhomework::parsing_a_problem) {
1479: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1480: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1481: return '';
1482: }
1.184 albertel 1483:
1484: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1485: &init_problem_globals('problem');
1.166 albertel 1486:
1.284 albertel 1487: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1488: $Apache::lonhomework::scantronmode=1;
1489: }
1.161 albertel 1490:
1.159 albertel 1491: if ($target ne 'analyze') {
1.415 raeburn 1492: my $type = &Apache::lonnet::EXT('resource.0.type');
1493: $Apache::lonhomework::type=$type;
1.284 albertel 1494: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1495: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1496: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1497: }
1.332 albertel 1498: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1499: }
1.164 albertel 1500: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1501: my $uri=$env{'request.uri'};
1.159 albertel 1502: if ($uri=~/\.(\w+)$/) {
1503: $Apache::lonhomework::type=$1;
1504: &Apache::lonxml::debug("Using type of $1");
1505: } else {
1506: $Apache::lonhomework::type='problem';
1507: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1508: }
1.87 albertel 1509: }
1.301 albertel 1510: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1511:
1.363 albertel 1512: &initialize_storage();
1.389 albertel 1513: if ($target ne 'analyze'
1514: && $env{'request.state'} eq 'construct') {
1515: &set_problem_state('0');
1516: }
1517:
1.366 albertel 1518: if ($target eq 'web') {
1519: &Apache::lonxml::debug(" grading history ");
1520: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1521: }
1.363 albertel 1522:
1.159 albertel 1523: #added vars to the scripting enviroment
1.213 albertel 1524: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1525: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1526: &Apache::run::run($expression,$safeeval);
1.159 albertel 1527: my $status;
1528: my $accessmsg;
1.508 raeburn 1529: my $resource_due;
1.159 albertel 1530:
1.343 albertel 1531: my $name= &get_resource_name($parstack,$safeeval);
1.512.2.9 raeburn 1532: my ($result,$form_tag_start,$slot_name,$slot,$probpartlist);
1.506 raeburn 1533:
1534: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1535: $target eq 'tex') {
1536: if ($env{'form.markaccess'}) {
1537: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1.512.2.13.4. (raeburn 1538:): my ($timelimit) = ($interval[0] =~ /^(\d+)/);
1539:): &Apache::lonnet::set_first_access($interval[1],$timelimit);
1.506 raeburn 1540: }
1541:
1542: ($status,$accessmsg,$slot_name,$slot) =
1543: &Apache::lonhomework::check_slot_access('0','problem');
1544: push (@Apache::inputtags::status,$status);
1545: }
1546:
1.354 albertel 1547: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1548: || $target eq 'edit') {
1.512.2.9 raeburn 1549: ($result,$form_tag_start,$probpartlist) =
1.350 albertel 1550: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1551: $name);
1.512.2.9 raeburn 1552: } elsif (($target eq 'grade') && ($Apache::lonhomework::type eq 'randomizetry')) {
1553: my ($symb)= &Apache::lonnet::whichuser();
1554: my $navmap = Apache::lonnavmaps::navmap->new();
1555: if (ref($navmap)) {
1556: my $res = $navmap->getBySymb($symb);
1557: if (ref($res)) {
1558: $probpartlist = $res->parts();
1559: }
1560: }
1.350 albertel 1561: }
1562:
1.284 albertel 1563: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1564:
1.479 raeburn 1565: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1566: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1567: $target eq 'tex') {
1.479 raeburn 1568:
1.159 albertel 1569: #handle rand seed in construction space
1.512.2.9 raeburn 1570: my $rndseed=&setup_rndseed($safeeval,$target,$probpartlist);
1571: if (($target eq 'grade') && &Apache::response::submitted()) {
1572: if ($Apache::lonhomework::type eq 'randomizetry') {
1573: $Apache::lonhomework::results{'resource.0.rndseed'}=$rndseed;
1574: } else {
1575: my @parts;
1576: if (ref($probpartlist) eq 'ARRAY') {
1577: @parts = @{$probpartlist};
1578: }
1579: unless (@parts) {
1580: $Apache::lonhomework::results{'resource.0.rndseed'}=$Apache::lonhomework::rawrndseed;
1581: }
1582: }
1583: }
1.367 albertel 1584: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 1585:
1.333 albertel 1586: if ($env{'request.state'} ne "construct" &&
1587: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1588: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1589: $rndseed.'" />'.
1590: '<input type="submit" name="resetdata"
1591: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1592: if (exists($env{'form.username'})) {
1593: $form_tag_start.=
1.164 albertel 1594: '<input type="hidden" name="username"
1.284 albertel 1595: value="'.$env{'form.username'}.'" />';
1.334 albertel 1596: }
1.462 raeburn 1597: if ($env{'request.role.adv'}) {
1598: $form_tag_start.= ' <label class="LC_nobreak">'
1599: .'<input type="checkbox" name="showallfoils"';
1600: if (defined($env{'form.showallfoils'})) {
1601: $form_tag_start.=' checked="checked"';
1602: }
1603: $form_tag_start.= ' /> '
1604: .&mt('Show All Foils')
1605: .'</label>';
1606: }
1.417 www 1607: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1608: $form_tag_start.=&practice_problem_header();
1.417 www 1609: }
1.462 raeburn 1610: $form_tag_start.='<hr />';
1.479 raeburn 1611: } elsif (($env{'request.state'} ne "construct") &&
1612: ($Apache::lonhomework::type eq 'randomizetry') &&
1613: ($status eq 'CAN_ANSWER')) {
1614: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1615: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1616: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1617: }
1.324 albertel 1618:
1.159 albertel 1619: my $expression='$external::datestatus="'.$status.'";';
1620: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1621: &Apache::run::run($expression,$safeeval);
1622: &Apache::lonxml::debug("Got $status");
1.324 albertel 1623:
1.159 albertel 1624: if (( $status eq 'CLOSED' ) ||
1625: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1626: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1627: ( $status eq 'BANNED') ||
1.216 albertel 1628: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1629: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1630: ( $status eq 'NOTRESERVABLE') ||
1631: ( $status eq 'RESERVABLE') ||
1632: ( $status eq 'RESERVABLE_LATER') ||
1.216 albertel 1633: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1634: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1635: $style);
1.159 albertel 1636: if ( $target eq "web" ) {
1.343 albertel 1637: my $msg;
1.159 albertel 1638: if ($status eq 'UNAVAILABLE') {
1.504 golterma 1639: $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1.441 raeburn 1640: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.504 golterma 1641: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1.499 raeburn 1642: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1643: ($status eq 'NOTRESERVABLE')) {
1.504 golterma 1644: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1.253 albertel 1645: } elsif ($status ne 'NOT_YET_VIEWED') {
1.504 golterma 1646: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1.499 raeburn 1647: }
1.216 albertel 1648: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1649: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1650: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1651: $msg.=&checkout_msg();
1.252 albertel 1652: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1653: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1654: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1655: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.499 raeburn 1656: } elsif ($status eq 'RESERVABLE') {
1657: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1658: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1659: '<br />'.
1660: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1661: } elsif ($status eq 'RESERVABLE_LATER') {
1662: $msg.=&mt('Window to make a reservation will open [_1].',
1663: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1664: } elsif ($status eq 'NOTRESERVABLE') {
1665: $msg.=&mt('Not available to make a reservation.');
1.159 albertel 1666: }
1667: $result.=$msg.'<br />';
1668: } elsif ($target eq 'tex') {
1.332 albertel 1669: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1670: : '\begin{minipage}{\textwidth}';
1.443 foxr 1671: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1672: $startminipage.'\vskip 0 mm';
1.159 albertel 1673: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1674: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1675: } else {
1.211 albertel 1676: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1677: }
1678: }
1.324 albertel 1679: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1680: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1681: $style);
1.324 albertel 1682: if ($target eq 'web') {
1.375 albertel 1683: $result .=
1684: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1685: } elsif ($target eq 'grade') {
1686: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1687: 'problem');
1688: }
1.159 albertel 1689: } elsif ($target eq 'web') {
1.508 raeburn 1690: if ($status eq 'CAN_ANSWER') {
1691: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1692: if ($slot_name ne '') {
1693: my $checked_in =
1694: $Apache::lonhomework::history{'resource.0.checkedin'};
1695: if ($checked_in eq '') {
1696: # unproctored slot access, self checkin
1697: &Apache::bridgetask::check_in('problem',undef,undef,
1698: $slot_name);
1699: $checked_in =
1700: $Apache::lonhomework::results{"resource.0.checkedin"};
1701: }
1702: if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1703: if ($slot->{'starttime'} < time()) {
1704: if (!$resource_due) {
1705: $resource_due = $slot->{'endtime'};
1706: } elsif ($slot->{'endtime'} < $resource_due) {
1707: $resource_due = $slot->{'endtime'};
1708: }
1709: }
1710: }
1711: }
1712: if ($resource_due) {
1713: my $time_left = $resource_due - time();
1714: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1715: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1716: }
1717: }
1718: }
1.368 albertel 1719: $result.="\n $form_tag_start \t".
1.227 albertel 1720: '<input type="hidden" name="submitted" value="yes" />';
1721: # create a page header and exit
1.284 albertel 1722: if ($env{'request.state'} eq "construct") {
1723: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1724: if ($Apache::lonhomework::type eq 'practice') {
1725: $result.= '<input type="submit" name="resetdata" '.
1726: 'value="'.&mt('New Problem Variation').'" />'.
1727: &practice_problem_header().'<hr />';
1728: }
1.227 albertel 1729: }
1730: # if we are viewing someone else preserve that info
1.284 albertel 1731: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1732: foreach my $field ('symb','courseid','domain','username') {
1733: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1734: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1735: }
1.479 raeburn 1736: foreach my $field ('trial','questiontype') {
1737: if ($env{"form.grade_$field"} ne '') {
1738: $result .= '<input type="hidden" name="grade_'.$field.
1739: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1740: }
1741: }
1.159 albertel 1742: }
1.490 raeburn 1743: if ($env{'form.grade_imsexport'}) {
1744: $result = '';
1745: }
1.159 albertel 1746: } elsif ($target eq 'tex') {
1.319 foxr 1747: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 1748: $result .= &select_metadata_hyphenation();
1749:
1.319 foxr 1750:
1.99 sakharuk 1751: }
1.159 albertel 1752: } elsif ($target eq 'edit') {
1.343 albertel 1753: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1754: $Apache::lonxml::warnings_error_header=
1755: &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 1756: my $temp=&Apache::edit::insertlist($target,$token);
1757: $result.=$temp;
1758: } elsif ($target eq 'modified') {
1759: $result=$token->[4];
1760: } else {
1761: # page_start returned a starting result, delete it if we don't need it
1762: $result = '';
1.99 sakharuk 1763: }
1.159 albertel 1764: return $result;
1.9 albertel 1765: }
1766:
1767: sub end_problem {
1.159 albertel 1768: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1769: my $result;
1.310 foxr 1770:
1.321 albertel 1771: if (!$Apache::lonxml::metamode) {
1772: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1773: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1774: }
1.319 foxr 1775:
1776: if ($target eq 'tex') {
1.321 albertel 1777: # Figure out the front matter and replace the
1778: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1779: # this in end_problem because whether or not we display due
1780: # dates depends on whether due dates have already been
1781: # displayed in the problem parts.
1782:
1.319 foxr 1783: my $frontmatter = '';
1784: my $startminipage = '';
1785: if (not $env{'form.problem_split'}=~/yes/) {
1786: $startminipage = '\begin{minipage}{\textwidth}';
1787: }
1788: my $id = $Apache::inputtags::part;
1789: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1790: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.512.2.9 raeburn 1791: my @packages = split(/,/,$packages);
1.319 foxr 1792: my $allow_print_points = 0;
1793: foreach my $partial_key (@packages) {
1794: if ($partial_key=~m/^part_0$/) {
1795: $allow_print_points=1;
1796: }
1797: }
1798: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1799: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1800: if (lc($env{'course.'.$env{'request.course.id'}.
1801: '.disableexampointprint'}) eq 'yes') {
1802: $allow_print_points=0;
1803: }
1804: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1805: 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 1806: &clear_required_languages();
1.319 foxr 1807: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1808: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1809:
1810: # Figure out what the due date is and if we need to print
1811: # it in the problem header. We have been logging the
1812: # last due date written to file.
1813:
1814: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1815: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1816: my $duedate_text = &mt('Due date: [_1]'
1817: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1818: my $temp_file;
1819: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1820:
1821: # Figure out what the last printed due date is or set it
1822: # to the epoch if no duedates have been printed.
1823:
1824: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1825: if (-e $filename) {
1826: $temp_file = Apache::File->new($filename);
1827: my @due_file = <$temp_file>;
1828: $due_file_content = $due_file[$#due_file];
1829: chomp $due_file_content;
1830: }
1831:
1832: # We display the due date iff it is not the same as the last
1833: # duedate in problem header ($due_file_content), and
1834: # none of our parts displayed a duedate.
1835: #
1836: my $parts_with_displayduedate;
1837: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1838: $parts_with_displayduedate =
1839: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1840: } else {
1841: $parts_with_displayduedate = 0;
1842: }
1843: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1844: $temp_file = Apache::File->new('>'.$filename);
1845: print $temp_file "$duetime\n";
1846: if (not $env{'request.symb'} =~ m/\.page_/) {
1847: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1848: $frontmatter .= $begin_doc.
1.448 bisitz 1849: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1850: } else {
1851: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1852: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1853: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1854: }
1.319 foxr 1855: }
1856: } else {
1.448 bisitz 1857: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1858: }
1859: } else {
1860: if (not $env{'request.symb'} =~ m/\.page_/) {
1861: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1862: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1863: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1864: }
1.319 foxr 1865: } else {
1.381 albertel 1866: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1867: }
1868: }
1869: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1870: }
1871:
1.159 albertel 1872: my $status=$Apache::inputtags::status['-1'];
1873: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1874: $target eq 'tex') {
1.249 albertel 1875: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1876: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1877: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1878: &Apache::inputtags::grade;
1.324 albertel 1879: } elsif ($status eq 'NEEDS_CHECKIN') {
1880: # no need to grade, and don't want to hide data
1.249 albertel 1881: } else {
1882: # move any submission data to .hidden
1883: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1884: }
1.159 albertel 1885: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1886: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1887: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1888: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1889: # if part is zero, no <part>s existed, so we need show the current
1890: # grading status
1891: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1892: $result.= $gradestatus;
1893: }
1894: if (
1.284 albertel 1895: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1896: ($target eq 'answer') || ($target eq 'tex')
1897: ) {
1.490 raeburn 1898: if (($target ne 'tex') &&
1899: ($env{'form.answer_output_mode'} ne 'tex') &&
1900: (!$env{'form.grade_imsexport'})) {
1.254 www 1901: $result.="</form>";
1.159 albertel 1902: }
1903: if ($target eq 'web') {
1.507 raeburn 1904: #
1905: # Closing </body></html> not added by end_page().
1906: # Added separately at end of this routine, after added
1907: # <script></script> so document will be valid xhtml.
1908: #
1909: $result.= &Apache::loncommon::end_page({'discussion' => 1,
1910: 'notbody' => 1});
1.159 albertel 1911: } elsif ($target eq 'tex') {
1.178 sakharuk 1912: my $endminipage = '';
1.284 albertel 1913: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1914: $endminipage = '\end{minipage}';
1915: }
1.284 albertel 1916: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1917: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1918: } else {
1.262 sakharuk 1919: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1920: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1921: $result .= $endminipage.'\end{document} ';
1922: } else {
1.382 albertel 1923: $result .= $endminipage;
1.262 sakharuk 1924: }
1.159 albertel 1925: }
1926: }
1927: }
1.476 www 1928: if ($target eq 'web') {
1929: $result.=&Apache::functionplotresponse::init_script();
1930: }
1.159 albertel 1931: if ($target eq 'grade') {
1932: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1933: &finalize_storage();
1934: }
1.284 albertel 1935: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1936: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1937: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1938: # normally we get it from above, but in CSTR
1.172 albertel 1939: # we always show answer mode too.
1.159 albertel 1940: }
1941: } elsif ($target eq 'meta') {
1942: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1943: @Apache::inputtags::response=();
1.159 albertel 1944: $result=&Apache::response::mandatory_part_meta;
1945: }
1.215 albertel 1946: $result.=&Apache::response::meta_part_order();
1.258 albertel 1947: $result.=&Apache::response::meta_response_order();
1.159 albertel 1948: } elsif ($target eq 'edit') {
1949: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1950: $result .= &problem_edit_footer();
1.320 albertel 1951: } elsif ($target eq 'modified') {
1952: $result .= $token->[2];
1.159 albertel 1953: }
1.155 albertel 1954:
1.284 albertel 1955: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1956: &Apache::inputtags::check_for_duplicate_ids();
1957: }
1.204 albertel 1958:
1959: &reset_problem_globals('problem');
1.159 albertel 1960:
1.502 foxr 1961: #
1962: # This shouild be just above the return so that the
1963: # time put in the javascript is as late as possible in the
1964: # computation:
1965: #
1966: if ($target eq 'web') {
1967: $result .= &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 1968: #
1969: # Closing tags delayed so any <script></script> tags
1970: # not in head can appear inside body, for valid xhtml.
1971: #
1972: $result .= "</body>\n</html>";
1.502 foxr 1973: }
1.159 albertel 1974: return $result;
1.48 albertel 1975: }
1976:
1.108 albertel 1977:
1.48 albertel 1978: sub start_library {
1.159 albertel 1979: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1980: my ($result,$form_tag_start);
1.371 albertel 1981: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1982: &init_problem_globals('library');
1983: $Apache::lonhomework::type='problem';
1984: }
1.159 albertel 1985: if ($target eq 'edit') {
1.343 albertel 1986: ($result,$form_tag_start)=
1987: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1988: 'Edit');
1989: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1990: my $temp=&Apache::edit::insertlist($target,$token);
1991: $result.=$temp;
1992: } elsif ($target eq 'modified') {
1993: $result=$token->[4];
1.340 albertel 1994: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1995: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1996: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1997: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1998: ($result,$form_tag_start)=
1999: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2000: $name);
1.479 raeburn 2001: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 2002: $result.=" \n $form_tag_start".
1.159 albertel 2003: '<input type="hidden" name="submitted" value="yes" />';
2004: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 2005: if ($Apache::lonhomework::type eq 'practice') {
2006: $result.= '<input type="submit" name="resetdata" '.
2007: 'value="'.&mt('New Problem Variation').'" />'.
2008: &practice_problem_header().'<hr />';
2009: }
1.159 albertel 2010: }
2011: return $result;
1.48 albertel 2012: }
2013:
2014: sub end_library {
1.159 albertel 2015: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2016: my $result='';
2017: if ($target eq 'edit') {
2018: $result=&problem_edit_footer();
1.371 albertel 2019: } elsif ($target eq 'web'
2020: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
2021: && $env{'request.state'} eq "construct") {
1.349 albertel 2022: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.512.2.13.4. (raeburn 2023:): } elsif ($target eq 'meta') {
2024:): $result.=&Apache::response::meta_response_order();
1.159 albertel 2025: }
1.371 albertel 2026: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
2027: &reset_problem_globals('library');
2028: }
1.159 albertel 2029: return $result;
1.197 www 2030: }
2031:
2032: sub start_definetag {
1.326 albertel 2033: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 2034:
2035: my $result;
2036:
2037: my $name = $token->[2]->{'name'};
1.326 albertel 2038: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 2039: if ($target eq 'web') {
2040: if ($name=~/^\//) {
2041: $result=
2042: '<br /><table class="LC_sty_end"><tr><th>'.
2043: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2044: } else {
2045: $result=
2046: '<br /><table class="LC_sty_begin"><tr><th>'.
2047: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2048: }
2049: $skip = &HTML::Entities::encode($skip, '<>&"');
2050: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 2051: }
2052: return $result;
2053: }
2054:
2055: sub end_definetag {
2056: return '';
1.1 albertel 2057: }
2058:
2059: sub start_block {
1.201 albertel 2060: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 2061:
2062: my $result;
1.1 albertel 2063:
1.339 albertel 2064: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2065: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 2066: my $code = $token->[2]->{'condition'};
1.385 albertel 2067: if (defined($code) && $code ne '') {
1.137 albertel 2068: if (!$Apache::lonxml::default_homework_loaded) {
2069: &Apache::lonxml::default_homework_load($safeeval);
2070: }
1.131 albertel 2071: $result = &Apache::run::run($code,$safeeval);
2072: &Apache::lonxml::debug("block :$code: returned :$result:");
2073: } else {
2074: $result='1';
2075: }
2076: if ( ! $result ) {
1.201 albertel 2077: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 2078: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2079: }
2080: $result='';
2081: } elsif ($target eq 'edit') {
2082: $result .=&Apache::edit::tag_start($target,$token);
2083: $result .=&Apache::edit::text_arg('Test Condition:','condition',
2084: $token,40);
2085: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2086: } elsif ($target eq 'modified') {
2087: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2088: $safeeval,'condition');
2089: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 2090: }
1.131 albertel 2091: return $result;
1.1 albertel 2092: }
2093:
2094: sub end_block {
1.167 www 2095: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2096: my $result;
2097: if ($target eq "edit") {
2098: $result.= &Apache::edit::tag_end($target,$token,'');
2099: }
2100: return $result;
2101: }
1.500 foxr 2102: #
2103: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
2104: # ...
2105: # </languageblock>
2106: #
2107: # This declares the intent to provide content that can be rendered in the
2108: # set of languages in the include specificatino but not in the exclude
2109: # specification. If a currently preferred language is in the include list
2110: # the content in the <languageblock>...</languageblock> is rendered
2111: # If the currently preferred language is in the exclude list,
2112: # the content in the <languageblock>..></languageblock is not rendered.
2113: #
2114: # Pathalogical case handling:
2115: # - Include specified, without the preferred language but exclude specified
2116: # also without the preferred langauge results in rendering the block.
2117: # - Exclude specified without include and excluden not containing a
2118: # preferred language renders the block.
2119: # - Include and exclude both specifying the preferred language does not
2120: # render the block.
2121: # - If neither include/exclude is specified, the block gets rendered.
2122: #
2123: # This tag has no effect when target is in {edit, modified}
2124: #
1.167 www 2125: sub start_languageblock {
1.201 albertel 2126: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 2127:
1.500 foxr 2128: my $result = '';
1.167 www 2129:
1.339 albertel 2130: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2131: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 2132: my $include = $token->[2]->{'include'};
2133: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 2134: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 2135:
2136: # This should not even happen, since we should at least have the server language
2137:
2138: if (!$preferred_languages[0]) {
2139: $preferred_languages[0]='en';
2140: }
2141:
2142: # Now loop over all languages in order of preference
2143:
2144: my $render;
1.398 www 2145: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 2146:
2147: # If neither include/nor exlude is present the block is going
2148: # to get rendered.
2149:
1.399 www 2150: my $found=0;
1.500 foxr 2151: $render=1;
2152:
2153: # If include is specified, don't render the block
2154: # unless the preferred language is included in the set.
2155:
1.398 www 2156: if ($include) {
1.500 foxr 2157: $render=0;
1.398 www 2158: foreach my $included_language (split(/\,/,$include)) {
2159: if ($included_language eq $preferred_language) {
1.500 foxr 2160: $render=1;
1.399 www 2161: $found=1;
1.500 foxr 2162: last; # Only need to find the first.
1.398 www 2163: }
2164: }
2165: }
1.500 foxr 2166: # Do we have an exclude argument?
2167: # If so, and one of the languages matches a preferred language
2168: # inhibit rendering the block. Note that in the pathalogical case the
2169: # author has specified a preferred language in both the include and exclude
2170: # attribte exclude is preferred.
2171:
1.398 www 2172: if ($exclude) {
1.500 foxr 2173: $render=1;
1.398 www 2174: foreach my $excluded_language (split(/\,/,$exclude)) {
2175: if ($excluded_language eq $preferred_language) {
1.500 foxr 2176: $render=0;
1.399 www 2177: $found=1;
1.500 foxr 2178: last; # Only need to find the first.
1.398 www 2179: }
2180: }
2181: }
1.500 foxr 2182: if ($found) {
2183: last; # Done on any match of include or exclude.
2184: }
1.398 www 2185: }
1.500 foxr 2186: # If $render not true skip the entire block until </languageblock>
2187: #
2188:
2189: if ( ! $render ) {
1.201 albertel 2190: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
2191: $style);
2192: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2193: }
1.500 foxr 2194: # If $render is true, we've not skipped the contents of the <languageglock>
2195: # and the normal loncapa processing flow will render it as a matter of course.
2196:
1.167 www 2197: } elsif ($target eq 'edit') {
2198: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2199: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 2200: $token,40);
1.211 albertel 2201: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 2202: $token,40);
2203: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2204: } elsif ($target eq 'modified') {
2205: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 2206: $safeeval,'include',
2207: 'exclude');
1.167 www 2208: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2209: }
2210: return $result;
2211: }
2212:
2213: sub end_languageblock {
1.170 www 2214: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2215: my $result;
1.201 albertel 2216: if ($target eq "edit") {
1.170 www 2217: $result.= &Apache::edit::tag_end($target,$token,'');
2218: }
2219: return $result;
2220: }
1.500 foxr 2221: # languagblock specific tags:
2222: {
2223: # For chunks of a resource that has translations, this hash contains
2224: # the translations available indexed by language name.
2225: #
2226:
2227: my %available_texts;
1.170 www 2228:
1.500 foxr 2229: # <translated> starts a block of a resource that has multiple translations.
2230: # See the <lang> tag as well.
2231: # When </translated> is encountered if there is a translation for the
2232: # currently preferred language, that is rendered inthe web/tex/webgrade
2233: # targets. Otherwise, the default text is rendered.
2234: #
2235: # Note that <lang> is only registered for the duration of the
2236: # <translated>...</translated> block
2237: #
2238: # Pathalogical case handling:
2239: # - If there is no <lang> that specifies a 'default' and there is no
2240: # translation that matches a preferred language, nothing is rendered.
2241: # - Nested <translated>...</translated> might be linguistically supported by
2242: # XML due to the stack nature of tag registration(?) however the rendered
2243: # output will be incorrect because there is only one %available_texts
2244: # has and end_translated clears it.
2245: # - Material outside of a <lang>...</lang> block within the
2246: # <translated>...<translated> block won't render either e.g.:
2247: # <translated>
2248: # The following will be in your preferred langauge:
2249: # <lang which='en'>
2250: # This section in english
2251: # </lang>
2252: # <lang which='sgeiso'>
2253: # Hier es ist auf Deutsch.
2254: # </lang>
2255: # <lang which='sfriso'>
2256: # En Francais
2257: # </lang>
2258: # </translated>
2259: #
2260: # The introductory text prior to the first <lang> tag is not rendered.
2261: #
1.397 albertel 2262: sub start_translated {
2263: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2264: &Apache::lonxml::register('Apache::structuretags',('lang'));
2265: undef(%available_texts);
2266: }
2267:
2268: sub end_translated {
2269: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2270: my $result;
2271: #show the translation on viewable targets
2272: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
2273: # or non-viewable targets, if it's embedded in something that
2274: # wants the output
2275: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
2276: && &Apache::lonxml::in_redirection() ) ) {
2277: my @possibilities = keys(%available_texts);
2278: my $which =
2279: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 2280: if ($target eq 'tex') {
2281: $result = &select_hyphenation($which);
2282: }
2283: $result .= $available_texts{$which};
2284: if ($target eq 'tex') {
2285: $result .= &select_metadata_hyphenation(); # Restore original language.
2286: }
1.397 albertel 2287: }
2288: undef(%available_texts);
2289: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
2290: return $result;
2291: }
2292:
1.500 foxr 2293: # <lang [which='language-name'] [other='lang1,lang2...']>
2294: # Specifies that the block contained within it is a translation
2295: # for a specific language specified by the 'which' attribute. The
2296: # 'other' attribute can be used by itself or in conjunction with
2297: # which to specify this tag _may_ be used as a translation for some
2298: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
2299: # specifying that the block provides a translation for US (primary)
2300: # Canadian, Australian and UK Englush.
2301: #
2302: # Comment: this seems a bit silly why not just support a list of languages
2303: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
2304: #
2305: # Effect:
2306: # The material within the <lang>..</lang> block is stored in the
2307: # specified set of $available_texts hash entries, the appropriate one
2308: # is selected at </translated> time.
2309: #
2310: # Pathalogical case handling:
2311: # If a language occurs multiple times within a <translated> block,
2312: # only the last one is rendered e.g.:
2313: #
2314: # <translated>
2315: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
2316: # Red green color blindness is quite common affecting about 7.8% of
2317: # the male population, but onloy about .65% of the female population.
2318: # </lang>
2319: # Red green colour blindness is quite common affecting about 7.8% of
2320: # the male population, but onloy about .65% of the female population.
2321: # <lang which='seniso', other='senisoCA,senisoAU'>
2322: # </translated>
2323: #
2324: # renders the correct spelling of color (colour) for people who have specified
2325: # a preferred language that is one of the British Commonwealth languages
2326: # even though those are also listed as valid selections for the US english
2327: # <lang> block.
2328: #
1.397 albertel 2329: sub start_lang {
2330: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2331: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2332: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2333: &Apache::lonxml::startredirection();
2334: }
2335: return '';
2336: }
2337:
2338: sub end_lang {
2339: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2340: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2341: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2342: my $result = &Apache::lonxml::endredirection();
2343: my $which = &Apache::lonxml::get_param('which',$parstack,
2344: $safeeval);
1.431 raeburn 2345: if ($which=~/\w/) {
2346: $available_texts{$which} = $result;
2347: }
2348: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
2349: $safeeval);
2350: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
2351: if ($language=~/\w/) {
2352: $available_texts{$language} = $result;
2353: }
1.427 bisitz 2354: }
2355:
1.397 albertel 2356: }
2357: return '';
2358: }
1.500 foxr 2359: } # end langauge block specific tags.
2360:
1.397 albertel 2361:
1.170 www 2362: sub start_instructorcomment {
1.201 albertel 2363: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 2364:
2365: my $result;
2366:
1.339 albertel 2367: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2368: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 2369: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 2370: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 2371: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
2372: $parser,$style);
1.170 www 2373: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2374: }
2375: $result='';
2376: } elsif ($target eq 'edit') {
2377: $result .=&Apache::edit::tag_start($target,$token);
2378: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2379: }
2380: return $result;
2381: }
2382:
2383: sub end_instructorcomment {
1.159 albertel 2384: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2385: my $result;
2386: if ($target eq "edit") {
2387: $result.= &Apache::edit::tag_end($target,$token,'');
2388: }
2389: return $result;
1.4 tsai 2390: }
2391:
2392: sub start_while {
1.326 albertel 2393: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2394:
1.160 albertel 2395: my $result;
1.339 albertel 2396: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2397: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2398: my $code = $token->[2]->{'condition'};
1.4 tsai 2399:
1.160 albertel 2400: push( @Apache::structuretags::whileconds, $code);
2401: if (!$Apache::lonxml::default_homework_loaded) {
2402: &Apache::lonxml::default_homework_load($safeeval);
2403: }
2404: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2405: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2406: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2407: push( @Apache::structuretags::whileline, $token->[5]);
2408: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2409: if ( $result ) {
2410: &Apache::lonxml::newparser($parser,\$bodytext);
2411: }
2412: } elsif ($target eq 'edit') {
2413: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2414: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2415: $token,40);
2416: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2417: } elsif ($target eq 'modified') {
2418: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2419: $safeeval,'condition');
2420: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2421: }
1.160 albertel 2422: return $result;
1.4 tsai 2423: }
2424:
2425: sub end_while {
1.159 albertel 2426: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2427: my $result;
2428:
1.339 albertel 2429: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2430: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2431: my $code = pop(@Apache::structuretags::whileconds);
2432: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2433: my $line = pop(@Apache::structuretags::whileline);
2434: my $return = &Apache::run::run($code,$safeeval);
2435: my $starttime=time;
2436: my $error=0;
2437: while ($return) {
2438: if (time-$starttime >
2439: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2440: $return = 0; $error=1; next;
1.161 albertel 2441: }
2442: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2443: if ($target eq 'grade' || $target eq 'answer' ||
2444: $target eq 'analyze') {
2445: # grade/answer/analyze should produce no output but if we
2446: # are redirecting, the redirecter should know what to do
2447: # with the output
2448: if (!$Apache::lonxml::redirection) { undef($result); }
2449: }
1.161 albertel 2450: $return = &Apache::run::run($code,$safeeval);
2451: }
1.512.2.5 raeburn 2452: if ($error) {
2453: &Apache::lonxml::error(
2454: '<pre>'
2455: .&mt('Code ran too long. It ran for more than [_1] seconds.',
2456: $Apache::lonnet::perlvar{'lonScriptTimeout'})
2457: .&mt('This occurred while running <while> on line [_1].',
2458: $line)
2459: .'</pre>');
2460: }
1.160 albertel 2461: } elsif ($target eq "edit") {
2462: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2463: }
1.160 albertel 2464: return $result;
1.1 albertel 2465: }
1.6 tsai 2466:
1.160 albertel 2467: # <randomlist show="1">
1.6 tsai 2468: # <tag1>..</tag1>
2469: # <tag2>..</tag2>
2470: # <tag3>..</tag3>
1.160 albertel 2471: # ...
1.6 tsai 2472: # </randomlist>
2473: sub start_randomlist {
1.326 albertel 2474: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2475: my $result;
1.339 albertel 2476: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2477: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2478: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2479: my $b_parser= HTML::LCParser->new(\$body);
2480: $b_parser->xml_mode(1);
2481: $b_parser->marked_sections(1);
1.159 albertel 2482: my $b_tok;
2483: my @randomlist;
2484: my $list_item;
2485: while($b_tok = $b_parser->get_token() ) {
2486: if($b_tok->[0] eq 'S') { # start tag
2487: # get content of the tag until matching end tag
2488: # get all text upto the matching tag
2489: # and push the content into @randomlist
2490: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2491: $b_parser);
2492: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2493: push(@randomlist,$list_item);
2494: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2495: # $list_item</b>";
2496: }
2497: if($b_tok->[0] eq 'T') { # text
2498: # what to do with text in between tags?
2499: # print "<b>TEXT $b_tok->[1]</b><br />";
2500: }
2501: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2502: # print "<b>END-TAG $b_tok->[1]</b><br />";
2503: # }
2504: }
1.303 albertel 2505: if (@randomlist) {
2506: my @idx_arr = (0 .. $#randomlist);
1.512.2.13.4. (raeburn 2507:): if ($env{'form.code_for_randomlist'}) {
2508:): &Apache::structuretags::shuffle(\@idx_arr,$target);
2509:): undef($env{'form.code_for_randomlist'});
2510:): } else {
2511:): &Apache::structuretags::shuffle(\@idx_arr);
2512:): }
1.303 albertel 2513: my $bodytext = '';
2514: my $show=$#randomlist;
2515: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2516: $showarg--;
2517: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2518: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2519: my @currlist;
2520: my $part = $Apache::inputtags::part;
2521: if ($part ne '') {
2522: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2523: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2524: if (!(grep(/^\Q$part\E$/,@currlist))) {
2525: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2526: }
2527: } else {
2528: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2529: }
2530: }
2531: }
1.512.2.9 raeburn 2532: for my $i (0 .. $show) {
2533: $bodytext .= "$randomlist[ $idx_arr[$i] ]";
1.303 albertel 2534: }
2535: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2536: }
2537: } elsif ($target eq 'edit' ) {
2538: $result .=&Apache::edit::tag_start($target,$token);
2539: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2540: $token,5);
2541: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2542: } elsif ($target eq 'modified' ) {
2543: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2544: $safeeval,'show');
2545: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2546: }
2547: return $result;
1.7 tsai 2548: }
2549:
2550: sub shuffle {
1.512.2.13.4. (raeburn 2551:): my ($a,$target) = @_;
1.7 tsai 2552: my $i;
1.303 albertel 2553: if (ref($a) eq 'ARRAY' && @$a) {
1.512.2.13.4. (raeburn 2554:): &Apache::response::pushrandomnumber(undef,$target);
1.159 albertel 2555: for($i=@$a;--$i;) {
2556: my $j=int(&Math::Random::random_uniform() * ($i+1));
2557: next if $i == $j;
2558: @$a[$i,$j] = @$a[$j,$i];
2559: }
1.251 albertel 2560: &Apache::response::poprandomnumber();
1.7 tsai 2561: }
1.6 tsai 2562: }
2563:
2564: sub end_randomlist {
1.159 albertel 2565: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2566: my $result;
2567: if ($target eq 'edit' ) {
2568: $result=&Apache::edit::tag_end($target,$token,
2569: 'End Randomly Parsed Block');
2570: }
2571: return $result;
1.6 tsai 2572: }
2573:
1.283 albertel 2574: sub ordered_show_check {
2575: my $last_part=$Apache::inputtags::partlist[-2];
2576: my $in_order=
2577: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2578: my $in_order_show=1;
2579: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2580: $in_order_show=&Apache::response::check_status($last_part);
2581: }
2582: return $in_order_show;
2583: }
2584:
1.469 www 2585:
2586: sub start_startpartmarker {
2587: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2588: my $result='';
2589: if ($target eq 'edit') {
2590: $result=&Apache::edit::tag_start($target,$token);
2591: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2592: $result.=&Apache::edit::end_table();
2593:
2594: }
2595: return $result;
2596: }
2597:
2598: sub end_startpartmarker {
2599: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2600: my @result;
2601: if ($target eq 'edit') { $result[1]='no'; }
2602: return @result;
2603: }
2604:
2605: sub start_endpartmarker {
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 end of a part. Place start marker above 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_endpartmarker {
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:
2625:
2626:
2627:
1.11 albertel 2628: sub start_part {
1.326 albertel 2629: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2630: if (!$Apache::lonxml::metamode) {
2631: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2632: # duedates.
2633: }
1.159 albertel 2634: my $result='';
1.386 albertel 2635: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2636: $Apache::inputtags::part=$id;
1.177 albertel 2637: push(@Apache::inputtags::partlist,$id);
1.512.2.10 raeburn 2638: $Apache::inputtags::leniency='';
1.177 albertel 2639: @Apache::inputtags::response=();
1.159 albertel 2640: @Apache::inputtags::previous=();
2641: @Apache::inputtags::previous_version=();
1.405 albertel 2642: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2643: &Apache::response::reset_params();
2644:
1.159 albertel 2645: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2646: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2647: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.512.2.9 raeburn 2648: if ($Apache::lonhomework::type eq 'randomizetry') {
2649: my $rndseed=&setup_rndseed($safeeval,$target);
2650: if (($target eq 'grade') && &Apache::response::submitted()) {
2651: $Apache::lonhomework::results{"resource.$id.rndseed"}=$rndseed;
2652: }
2653: } elsif (($target eq 'grade') && &Apache::response::submitted()) {
2654: $Apache::lonhomework::results{"resource.$id.rndseed"}=$Apache::lonhomework::rawrndseed;
2655: }
1.283 albertel 2656: my $in_order_show=&ordered_show_check();
1.214 albertel 2657: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2658: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2659: &Apache::run::run($expression,$safeeval);
1.159 albertel 2660:
2661: if ($target eq 'meta') {
1.224 www 2662: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2663: return &Apache::response::mandatory_part_meta.
2664: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2665: } elsif ($target eq 'web' || $target eq 'grade' ||
2666: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2667: if ($hidden || !$in_order_show) {
1.326 albertel 2668: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2669: } else {
2670: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2671: push (@Apache::inputtags::status,$status);
2672: my $expression='$external::datestatus="'.$status.'";';
2673: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2674: &Apache::run::run($expression,$safeeval);
1.284 albertel 2675: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2676: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2677: }
1.216 albertel 2678: if (( $status eq 'CLOSED' ) ||
2679: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2680: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2681: ( $status eq 'BANNED') ||
2682: ( $status eq 'UNAVAILABLE') ||
2683: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2684: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2685: $style);
1.159 albertel 2686: if ( $target eq "web" ) {
1.211 albertel 2687: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2688: } elsif ( $target eq 'tex' ) {
1.284 albertel 2689: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2690: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2691: } else {
1.211 albertel 2692: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2693: }
1.159 albertel 2694: }
2695: } else {
2696: if ($target eq 'tex') {
1.284 albertel 2697: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2698: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2699: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2700: } else {
2701: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2702: }
1.195 sakharuk 2703: }
1.159 albertel 2704: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2705: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.512.2.9 raeburn 2706: my @allkeys = split(/,/,$allkeys);
1.222 sakharuk 2707: my $allow_print_points = 0;
2708: foreach my $partial_key (@allkeys) {
1.230 albertel 2709: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2710: if ($1 ne '0') {$allow_print_points=1;}
2711: }
2712: }
1.275 albertel 2713: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2714: if (defined($maxtries) && $maxtries < 0) {
2715: $allow_print_points=0;
2716: }
1.302 albertel 2717: if (lc($env{'course.'.$env{'request.course.id'}.
2718: '.disableexampointprint'}) eq 'yes') {
2719: $allow_print_points=0;
2720: }
1.463 foxr 2721: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2722: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2723:
2724: }
1.233 www 2725: } elsif ($target eq 'web') {
1.479 raeburn 2726: if ($status eq 'CAN_ANSWER') {
2727: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2728: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
2729: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
2730: my $num = scalar(@Apache::inputtags::partlist)-1;
2731: if ($probrandomize eq 'randomizetry') {
2732: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
2733: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2734: } else {
2735: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2736: if ($probrandtries ne $reqtries) {
2737: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2738: }
2739: }
2740: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
2741: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2742: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2743: }
2744: }
1.475 raeburn 2745: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2746: }
2747: }
2748: }
2749: } elsif ($target eq 'edit') {
2750: $result.=&Apache::edit::tag_start($target,$token);
2751: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2752: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2753: ' '.
2754: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2755: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2756: } elsif ($target eq 'modified') {
2757: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2758: $safeeval,'id','display');
1.159 albertel 2759: if ($constructtag) {
1.225 albertel 2760: #limiting ids to only letters numbers, and space
1.224 www 2761: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2762: $result = &Apache::edit::rebuild_tag($token);
2763: }
2764: }
2765: return $result;
1.11 albertel 2766: }
2767:
2768: sub end_part {
1.159 albertel 2769: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2770: &Apache::lonxml::debug("in end_part $target ");
2771: my $status=$Apache::inputtags::status['-1'];
2772: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2773: my $in_order_show=&ordered_show_check();
1.321 albertel 2774: my $result;
2775: if (!$Apache::lonxml::metamode) {
2776: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2777: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2778: }
1.312 albertel 2779: if ($target eq 'grade') {
1.249 albertel 2780: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2781: !$hidden && $in_order_show) {
1.311 foxr 2782: $result.=&Apache::inputtags::grade;
1.249 albertel 2783: } else {
2784: # move any submission data to .hidden
2785: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2786: }
1.283 albertel 2787: } elsif (($target eq 'web' || $target eq 'tex') &&
2788: !$hidden && $in_order_show) {
1.159 albertel 2789: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2790: $target);
1.490 raeburn 2791: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2792: ($env{'form.grade_imsexport'})) {
1.212 albertel 2793: $gradestatus='';
2794: }
1.311 foxr 2795: $result.=$gradestatus;
1.265 sakharuk 2796: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2797: } elsif ($target eq 'edit') {
1.311 foxr 2798: $result.=&Apache::edit::end_table();
1.322 albertel 2799: } elsif ($target eq 'modified') {
2800: $result .= $token->[2];
1.159 albertel 2801: }
2802: pop @Apache::inputtags::status;
2803: $Apache::inputtags::part='';
1.512.2.10 raeburn 2804: $Apache::inputtags::leniency='';
1.295 albertel 2805: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2806: return $result;
1.11 albertel 2807: }
1.1 albertel 2808:
1.25 albertel 2809: sub start_preduedate {
1.326 albertel 2810: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2811: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2812: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2813: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2814: if (!$Apache::lonhomework::scantronmode &&
2815: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2816: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2817: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2818: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2819: }
1.24 albertel 2820: }
1.159 albertel 2821: return '';
1.24 albertel 2822: }
2823:
1.25 albertel 2824: sub end_preduedate {
1.159 albertel 2825: return '';
1.24 albertel 2826: }
2827:
1.369 foxr 2828: # In all the modes where <postanswerdate> text is
2829: # displayable, all we do is eat up the text between the start/stop
2830: # tags if the conditions are not right to display it.
1.25 albertel 2831: sub start_postanswerdate {
1.326 albertel 2832: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2833: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2834: &Apache::lonnet::allowed('pav',
2835: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2836: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2837: $target eq 'tex' ) {
1.300 albertel 2838: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2839: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2840: (($target eq 'tex') && !$pav)) {
1.326 albertel 2841: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2842: }
2843: }
2844: return '';
1.24 albertel 2845: }
2846:
1.25 albertel 2847: sub end_postanswerdate {
1.159 albertel 2848: return '';
1.24 albertel 2849: }
2850:
1.25 albertel 2851: sub start_notsolved {
1.326 albertel 2852: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2853: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2854: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2855: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2856: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2857: if ($gradestatus =~ /^correct/ &&
2858: &Apache::response::show_answer()) {
1.159 albertel 2859: &Apache::lonxml::debug("skipping");
1.326 albertel 2860: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2861: }
1.24 albertel 2862: }
1.159 albertel 2863: return '';
1.24 albertel 2864: }
2865:
1.25 albertel 2866: sub end_notsolved {
1.159 albertel 2867: return '';
1.24 albertel 2868: }
2869:
2870: sub start_solved {
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' ||
2873: $target eq 'tex') {
2874: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2875: if ($gradestatus !~ /^correct/ ||
2876: !&Apache::response::show_answer()) {
1.326 albertel 2877: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2878: }
1.24 albertel 2879: }
1.159 albertel 2880: return '';
1.24 albertel 2881: }
2882:
2883: sub end_solved {
1.248 albertel 2884: return '';
2885: }
2886:
2887: sub start_problemtype {
1.326 albertel 2888: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2889: my $result;
1.339 albertel 2890: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2891: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2892: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2893: if (!defined($mode)) { $mode='show'; }
2894: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2895: my $found=0;
2896: foreach my $type (split(',',$for)) {
2897: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2898: }
2899: if ($mode eq 'show' && !$found) {
1.326 albertel 2900: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2901: }
2902: if ($mode eq 'hide' && $found) {
1.326 albertel 2903: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2904: }
2905: } elsif ($target eq 'edit') {
2906: $result .=&Apache::edit::tag_start($target,$token);
2907: $result.=&Apache::edit::select_arg('Mode:','mode',
2908: [['show','Show'],
2909: ['hide','Hide']]
2910: ,$token);
2911: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.512.2.2 raeburn 2912: [ ['exam','Exam/Quiz Problem'],
1.248 albertel 2913: ['survey','Survey'],
1.465 raeburn 2914: ['surveycred','Survey (with credit)'],
2915: ['anonsurvey','Anonymous Survey'],
2916: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2917: ['problem','Homework Problem'],
1.479 raeburn 2918: ['practice','Practice Problem'],
2919: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2920: ,$token);
2921: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2922: } elsif ($target eq 'modified') {
2923: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2924: $safeeval,'mode','for');
2925: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2926: }
2927: return $result;
2928: }
2929:
2930: sub end_problemtype {
1.159 albertel 2931: return '';
1.24 albertel 2932: }
1.34 albertel 2933:
2934: sub start_startouttext {
1.159 albertel 2935: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2936: my @result=(''.'');
2937: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2938:
2939: my $nesting =
2940: &Apache::lonxml::set_state('outtext',
2941: &Apache::lonxml::get_state('outtext')+1);
2942: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2943: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2944: }
1.159 albertel 2945: return (@result);
1.34 albertel 2946: }
1.159 albertel 2947:
1.34 albertel 2948: sub end_startouttext {
1.326 albertel 2949: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2950: my $result='';
2951: my $text='';
2952: if ($target eq 'edit') {
1.424 foxr 2953: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2954: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.512.2.11 raeburn 2955: $result.=&Apache::edit::start_table($token)."<tr><td>".&Apache::loncommon::insert_folding_button()
2956: ." ".&mt('Text Block')."</td>"
1.438 bisitz 2957: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2958: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 2959: .'</span></td>'
1.512.2.12 raeburn 2960: .'<td><span id="math_'.$areaid.'">';
2961: if ($env{'environment.nocodemirror'}) {
2962: $result.=&Apache::lonhtmlcommon::dragmath_button($areaid,1);
2963: } else {
2964: $result.=' ';
2965: }
2966: $result.='</span></td>'
1.474 raeburn 2967: .'<td>'
2968: .&Apache::edit::insertlist($target,$token)
2969: .'</td>'
1.512.2.5 raeburn 2970: .'<td class="LC_edit_problem_latexhelper">' .
1.474 raeburn 2971: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2972: &Apache::edit::end_row().
1.362 albertel 2973: &Apache::edit::start_spanning_row()."\n".
1.255 www 2974: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2975: }
2976: if ($target eq 'modified') {
1.219 albertel 2977: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2978: }
2979: if ($target eq 'tex') {
2980: $result .= '\noindent ';
2981: }
2982: return $result;
1.34 albertel 2983: }
1.159 albertel 2984:
1.34 albertel 2985: sub start_endouttext {
1.159 albertel 2986: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2987: my $result='';
2988: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2989: if ($target eq "modified") {
2990: $result='<endouttext />'.
1.377 albertel 2991: &Apache::edit::handle_insertafter('startouttext');
2992: }
1.404 albertel 2993:
2994: my $nesting =
2995: &Apache::lonxml::set_state('outtext',
2996: &Apache::lonxml::get_state('outtext')-1);
2997: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2998: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2999: &Apache::lonxml::set_state('outtext', 0);
3000: }
1.159 albertel 3001: return $result;
1.34 albertel 3002: }
1.159 albertel 3003:
1.34 albertel 3004: sub end_endouttext {
1.159 albertel 3005: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3006: my @result=('','');
3007: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
3008: return (@result);
1.34 albertel 3009: }
1.159 albertel 3010:
1.45 albertel 3011: sub delete_startouttext {
1.326 albertel 3012: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
3013: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 3014: my $text=$$parser['-1']->get_text("/endouttext");
3015: my $ntoken=$$parser['-1']->get_token();
3016: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
3017: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
3018: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
3019: # they did the last time round
3020: &Apache::lonxml::increasedepth($ntoken);
3021: &Apache::lonxml::decreasedepth($ntoken);
3022: return 1;
1.193 www 3023: }
3024:
3025: sub start_simpleeditbutton {
3026: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3027: my $result='';
1.284 albertel 3028: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 3029: ($target eq 'web') &&
1.330 albertel 3030: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 3031: my $url=$env{'request.noversionuri'};
1.193 www 3032: $url=~s/\?.*$//;
1.367 albertel 3033: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 3034: # Warning makes more sense and is more important on edit screen
1.442 bisitz 3035: # $result='<p class="LC_warning">'
3036: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
3037: # .&Apache::loncommon::help_open_topic('Caching')
3038: # .'</p>';
1.486 www 3039: $result.=&Apache::loncommon::head_subbox(
3040: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 3041: .&Apache::lonhtmlcommon::add_item_funclist(
3042: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
3043: .&mt('Edit').'</a>')
1.486 www 3044: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 3045:
1.193 www 3046: }
3047: return $result;
3048: }
3049:
3050: sub end_simpleeditbutton {
3051: return '';
1.45 albertel 3052: }
1.34 albertel 3053:
1.428 raeburn 3054: sub practice_problem_header {
3055: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
3056: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
3057: '</span>';
3058: }
3059:
1.479 raeburn 3060: sub randomizetry_problem_header {
3061: my ($problemstatus,$reqtries) = @_;
3062: my ($header,$text);
3063: if ($reqtries > 1) {
3064: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
3065: if (($problemstatus eq 'no') ||
3066: ($problemstatus eq 'no_feedback_ever')) {
3067: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3068: } else {
3069: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3070: }
3071: } else {
3072: $header = &mt('New Problem Variation Each Try');
3073: if (($problemstatus eq 'no') ||
3074: ($problemstatus eq 'no_feedback_ever')) {
3075: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
3076:
3077: } else {
3078: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
3079: }
3080: }
3081: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
3082: '<span class="LC_info">'.$text.'</span><hr />';
3083: }
3084:
3085: sub randomizetry_part_header {
3086: my ($problemstatus,$reqtries,$num) = @_;
3087: my ($header,$text);
3088: if ($reqtries eq 'none') {
3089: $header = &mt('No Question Variation');
3090: $text = &mt('For this question there will no new variation after a try.');
3091: } elsif ($reqtries > 1) {
3092: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
3093: if (($problemstatus eq 'no') ||
3094: ($problemstatus eq 'no_feedback_ever')) {
3095: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3096: } else {
3097: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3098: }
3099: } else {
3100: $header = &mt('New Question Variation For Each Try');
3101: if (($problemstatus eq 'no') ||
3102: ($problemstatus eq 'no_feedback_ever')) {
3103: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
3104: } else {
3105: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
3106: }
3107: }
3108: my $output;
3109: if ($num > 1) {
3110: $output .= '<hr />';
3111: }
3112: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
3113: '<span class="LC_info">'.$text.'</span><br /><br />';
3114: return $output;
3115: }
3116:
1.1 albertel 3117: 1;
3118: __END__
1.435 jms 3119:
3120: =pod
3121:
3122: =back
3123:
3124: =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