Annotation of loncom/homework/structuretags.pm, revision 1.512.2.14
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.512.2.14! raeburn 4: # $Id: structuretags.pm,v 1.512.2.13 2017/03/14 12:20:57 raeburn Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.435 jms 30: =pod
31:
32: =head1 NAME
33:
34: Apache::structuretags
35:
36: =head1 SYNOPSIS
37:
38:
39: This is part of the LearningOnline Network with CAPA project
40: described at http://www.lon-capa.org.
41:
42:
43: =head1 NOTABLE SUBROUTINES
44:
45: =over
46:
47: =item
48:
49: =back
50:
51: =cut
52:
1.133 sakharuk 53:
1.1 albertel 54: package Apache::structuretags;
55:
56: use strict;
57: use Apache::lonnet;
1.101 sakharuk 58: use Apache::File();
1.147 www 59: use Apache::lonmenu;
1.210 albertel 60: use Apache::lonlocal;
1.231 sakharuk 61: use Apache::lonxml;
1.434 foxr 62: use Apache::londefdef;
1.338 albertel 63: use Apache::lonenc();
1.500 foxr 64: use Apache::loncommon();
1.267 albertel 65: use Time::HiRes qw( gettimeofday tv_interval );
1.356 www 66: use lib '/home/httpd/lib/perl/';
67: use LONCAPA;
68:
1.78 harris41 69: BEGIN {
1.469 www 70: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','translated','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startpartmarker','startouttext','endpartmarker','endouttext','simpleeditbutton','definetag'));
1.10 albertel 71: }
72:
1.500 foxr 73:
74: #---------------------------------------------------------------------------------
75: #
76: # This section of code deals with hyphenation management.
77: # We must do three things:
78: # - keep track fo the desired languages to alter the header.
79: # - provide hyphenation selection as needed by each language that appears in the
80: # text.
81: # - Provide the header text needed to make available the desired hyphenations.
82: #
83: #
84:
85: # Hash whose keys are the languages encountered in the document/resource.
86: #
87:
88: my %languages_required;
89: ##
90: # Given a language selection as input returns a chunk of LaTeX that
91: # selects the required hyphenator.
92: #
93: # @param language - the language being selected.
94: # @return string
95: # @retval The LaTeX needed to select the hyphenation appropriate to the language.
96: #
97: sub select_hyphenation {
98: my $language = shift;
99:
100: $language = &Apache::loncommon::latexlanguage($language); # Translate -> latex language.
101:
102: # If there is no latex language there's not much we can do:
103:
104: if ($language) {
105: &require_language($language);
106: my $babel_hyphenation = "\\selectlanguage{$language}";
107:
108: return $babel_hyphenation;
109: } else {
110: return '';
111: }
112: }
113: ##
114: # Selects hyphenation based on the current problem metadata.
115: # This requires that
116: # - There is a language metadata item set for the problem.
117: # - The language has a latex/babel hyphenation.
118: #
119: # @note: Uses &Apache::lonxml::request to locate the Uri associated with
120: # this problem.
121: # @return string (possibly empty).
122: # @retval If not empty an appropriate \selectlanguage{} directive.
123: #
124: sub select_metadata_hyphenation {
125: my $uri = $Apache::lonxml::request->uri;
126: my $language = &Apache::lonnet::metadata($uri, 'language');
127: my $latex_language = &Apache::loncommon::latexhyphenation($language);
128: if ($latex_language) {
129: return '\selectlanguage{'.$latex_language."}\n";
130: }
131: return ''; # no latex hyphenation or no lang metadata.
132: }
133:
134:
135: ##
136: # Clears the set of languages required by the document being rendered.
137: #
138: sub clear_required_languages {
139: %languages_required = ();
140: }
141: ##
142: # Allows an external client of this module to register a need for a language:
143: #
144: # @param LaTeX language required:
145: #
146: sub require_language {
147: my $language = shift;
148: $languages_required{$language} = 1;
149: }
150:
151: ##
152: # Provides the header for babel that indicates the languages
153: # the document requires.
154: # @return string
155: # @retval \usepackage[lang1,lang2...]{babel}
156: # @retval '' if there are no languages_required.
157: sub languages_header {
158: my $header ='';
159: my @languages = (keys(%languages_required));
160:
161: # Only generate the header if there are languages:
162:
163: if (scalar @languages) {
164: my $language_list = join(',', (@languages));
165: $header = '\usepackage['.$language_list."]{babel}\n";
166: }
167: return $header;
168: }
169:
170: #----------------------------------------------------------------------------------
171:
1.10 albertel 172: sub start_web {
1.326 albertel 173: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 174: if ($target ne 'edit' && $target ne 'modified') {
175: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
176: if ($target eq 'web' || $target eq 'webgrade') {
177: return $bodytext;
178: }
179: } elsif ($target eq "edit" ) {
180: my $bodytext =
181: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
182: my $result = &Apache::edit::tag_start($target,$token);
183: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
184: return $result;
185: } elsif ( $target eq "modified" ) {
186: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 187: }
188: return '';
1.10 albertel 189: }
190:
191: sub end_web {
1.44 ng 192: return '';
1.10 albertel 193: }
194:
195: sub start_tex {
1.326 albertel 196: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 197: my $result='';
1.383 albertel 198: if ($target ne 'edit' && $target ne 'modified') {
199: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
200: if ($target eq 'tex') {
1.434 foxr 201:
202: # If inside a table, occurrences of \\ must be removed;
203: # else the table blows up.
204:
205: if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
206: $bodytext =~ s/\\\\//g;
207: }
1.432 foxr 208: return $bodytext.'{}';
1.383 albertel 209: }
210: } elsif ($target eq "edit" ) {
211: my $bodytext =
212: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
213: my $result = &Apache::edit::tag_start($target,$token);
214: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
215: return $result;
216: } elsif ( $target eq "modified" ) {
217: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 218: }
1.198 sakharuk 219: return $result;;
1.10 albertel 220: }
221:
222: sub end_tex {
1.44 ng 223: return '';
1.9 albertel 224: }
225:
1.400 albertel 226: sub homework_js {
1.512.2.9 raeburn 227: my ($postsubmit,$timeout);
228: if (($env{'request.course.id'}) && ($env{'request.state'} ne 'construct')) {
229: my $crstype;
230: if (&Apache::loncommon::course_type() eq 'Community') {
231: $crstype = 'community';
232: } else {
233: if ($env{'course.'.$env{'request.course.id'}.'.internal.coursecode'}) {
234: $crstype = 'official';
235: } elsif ($env{'course.'.$env{'request.course.id'}.'.internal.textbook'}) {
236: $crstype = 'textbook';
237: } else {
238: $crstype = 'unofficial';
239: }
240: }
241: $postsubmit = $env{'course.'.$env{'request.course.id'}.'.internal.postsubmit'};
242: if ($postsubmit eq '') {
243: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
244: $postsubmit = $domdefs{'postsubmit'};
245: unless ($postsubmit eq 'off') {
246: $timeout = $domdefs{$crstype.'postsubtimeout'};
247: }
248: } elsif ($postsubmit eq '0') {
249: $postsubmit = 'off';
250: } elsif ($postsubmit eq '1') {
251: $postsubmit = 'on';
252: $timeout = $env{'course.'.$env{'request.course.id'}.'.internal.postsubtimeout'};
253: if ($timeout eq '') {
254: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
255: $timeout = $domdefs{$crstype.'postsubtimeout'};
256: }
257: }
258: if ($timeout eq '') {
259: $timeout = 60;
260: }
261: } else {
262: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'request.role.domain'});
263: $postsubmit = $domdefs{'postsubmit'};
264: unless ($postsubmit eq 'off') {
265: $timeout = 60;
266: }
267: }
268: my $jstimeout = 0;
269: if ($timeout) {
270: $jstimeout = 1000 * $timeout;
271: }
1.400 albertel 272: return &Apache::loncommon::resize_textarea_js().
1.512.2.11 raeburn 273: &Apache::loncommon::colorfuleditor_js().
1.416 raeburn 274: &setmode_javascript().
1.512.2.9 raeburn 275: <<"JS";
1.400 albertel 276: <script type="text/javascript">
1.483 raeburn 277: // <![CDATA[
1.494 raeburn 278: function setSubmittedPart (part,prefix) {
279: if (typeof(prefix) == 'undefined') {
280: this.document.lonhomework.submitted.value="part_"+part;
281: } else {
282: for (var i=0;i<this.document.lonhomework.elements.length;i++) {
283: if (this.document.lonhomework.elements[i].name == prefix+'submitted') {
284: this.document.lonhomework.elements[i].value="part_"+part;
285: }
286: }
287: }
1.400 albertel 288: }
289:
1.512.2.9 raeburn 290: function disableAutoComplete (id) {
291: var field = document.getElementById(id);
292: if (field != null && field != undefined){
293: if ('autocomplete' in field) {
294: field.autocomplete = "off";
295: } else {
296: field.setAttribute("autocomplete", "off");
297: }
298: }
299: }
300:
1.400 albertel 301: function image_response_click (which, e) {
302: init_geometry();
303: if (!e) { e = window.event; } //IE
304: var input_element = document.lonhomework.elements[which];
1.401 albertel 305: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 306: var token = token_element.value;
1.401 albertel 307: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 308: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
309: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
310: var click = x+':'+y;
311: input_element.value = click;
1.485 raeburn 312: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
1.400 albertel 313: }
1.512.2.9 raeburn 314:
315: var submithandled = 0;
316: var keypresshandled = 0;
317: var postsubmit = '$postsubmit';
318:
319: \$(document).ready(function(){
320: if (postsubmit != 'off') {
321: \$(document).keypress(function(event){
322: var keycode = (event.keyCode ? event.keyCode : event.which);
323: if ((keycode == '13') && (keypresshandled == 0)) {
324: if ( \$( document.activeElement ).hasClass("LC_textline") ) {
325: keypresshandled = 1;
326: var idsArray = \$( document.activeElement ).attr("id").split(/HWVAL_/);
327: if (idsArray.length) {
328: event.preventDefault();
329: var itemsArray = idsArray[1].split(/_/);
330: var buttonId = idsArray[0]+'submit_'+itemsArray[0];
331: \$("#"+buttonId).trigger("click");
332: }
333: }
334: }
335: });
336:
337: \$(document).delegate('form :submit', 'click', function( event ) {
338: if ( \$( this ).hasClass( "LC_hwk_submit" ) ) {
339: var buttonId = this.id;
340: var timeout = $jstimeout;
341: if (submithandled == 0) {
342: submithandled = 1;
343: \$( "#msg_"+buttonId ).css({"display": "inline","background-color": "#87cefa",
344: "color": "black","padding": "2px"}) ;
345: if (( \$(this.form).id == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
346: if (buttonId != "all_submit") {
347: \$( ".LC_status_"+buttonId ).hide();
348: if (( "#"+buttonId+"_pressed" ).length) {
349: \$( "#"+buttonId+"_pressed" ).val( "1" );
350: }
351: }
352: } else {
353: \$( ".LC_status_"+buttonId ).hide();
354: }
355: \$(this.form).submit();
356: \$( ".LC_hwk_submit" ).prop( "disabled", true);
357: \$( ".LC_textline" ).prop( "readonly", "readonly");
358: event.preventDefault();
359:
360: if (timeout > 0) {
361: setTimeout(function(){
362: \$( "#msg_"+buttonId ).css({"display": "none"});
363: if (( \$(this.form).id == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
364: if (buttonId != "all_submit") {
365: if (( "#"+buttonId+"_pressed" ).length) {
366: \$( "#"+buttonId+"_pressed" ).val( "" );
367: }
368: }
369: }
370: \$( ".LC_hwk_submit" ).prop( "disabled", false);
371: \$( ".LC_textline" ).prop( "readonly", false);
372: submithandled = 0;
373: keypresshandled = 0;
374: }, timeout);
375: }
376: return true;
377: }
378: }
379: });
380: }
381: });
382:
1.483 raeburn 383: // ]]>
1.400 albertel 384: </script>
385: JS
386: }
387:
1.416 raeburn 388: sub setmode_javascript {
389: return <<"ENDSCRIPT";
390: <script type="text/javascript">
1.485 raeburn 391: // <![CDATA[
1.416 raeburn 392: function setmode(form,probmode) {
1.512.2.13 raeburn 393: var initial = form.problemmode.value;
1.416 raeburn 394: form.problemmode.value = probmode;
395: form.submit();
1.512.2.13 raeburn 396: form.problemmode.value = initial;
1.416 raeburn 397: }
1.485 raeburn 398: // ]]>
1.416 raeburn 399: </script>
400: ENDSCRIPT
401: }
402:
1.48 albertel 403: sub page_start {
1.345 albertel 404: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
405: $extra_head)=@_;
1.159 albertel 406: my %found;
1.207 albertel 407: foreach my $taginside (@$tagstack) {
1.159 albertel 408: foreach my $taglookedfor ('html','body','form') {
409: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
410: }
411: }
412:
1.343 albertel 413: if ($target eq 'tex') {
414: return
415: &Apache::londefdef::start_html($target,$token,$tagstack,
416: $parstack,$parser,$safeeval);
417: }
418:
1.474 raeburn 419: $extra_head .= &homework_js().
420: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
421: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
1.512.2.12 raeburn 422: my %textarea_args;
423: if (($env{'request.state'} ne 'construct') ||
424: ($env{'environment.nocodemirror'})) {
425: %textarea_args = (
1.474 raeburn 426: dragmath => 'math',
427: );
1.512.2.12 raeburn 428: }
1.474 raeburn 429: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 430: }
1.478 raeburn 431: my $is_task = ($env{'request.uri'} =~ /\.task$/);
1.512.2.9 raeburn 432: my ($needs_upload,$partlist);
1.495 raeburn 433: my ($symb)= &Apache::lonnet::whichuser();
434: my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
1.478 raeburn 435: if ($is_task) {
1.495 raeburn 436: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
1.493 raeburn 437: } else {
438: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.uploadedfiletypes") ne '') {
1.495 raeburn 439: unless ($env{'request.state'} eq 'construct') {
440: my $navmap = Apache::lonnavmaps::navmap->new();
441: if (ref($navmap)) {
442: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 443: my $is_page;
444: if (ref($mapres)) {
445: $is_page = $mapres->is_page();
446: }
447: unless ($is_page) {
1.495 raeburn 448: $needs_upload = 1;
449: }
1.512.2.9 raeburn 450: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
451: my $res = $navmap->getBySymb($symb);
452: if (ref($res)) {
453: $partlist = $res->parts();
454: }
455: }
1.495 raeburn 456: }
457: }
1.493 raeburn 458: } else {
459: unless ($env{'request.state'} eq 'construct') {
460: my $navmap = Apache::lonnavmaps::navmap->new();
461: if (ref($navmap)) {
1.495 raeburn 462: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 463: my $is_page;
464: if (ref($mapres)) {
465: $is_page = $mapres->is_page();
466: }
1.512.2.9 raeburn 467: if ($is_page) {
468: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
469: my $res = $navmap->getBySymb($symb);
470: if (ref($res)) {
471: $partlist = $res->parts();
472: }
473: }
474: } else {
1.495 raeburn 475: my $res = $navmap->getBySymb($symb);
476: if (ref($res)) {
1.512.2.9 raeburn 477: $partlist = $res->parts();
1.495 raeburn 478: if (ref($partlist) eq 'ARRAY') {
479: foreach my $part (@{$partlist}) {
480: my @types = $res->responseType($part);
481: my @ids = $res->responseIds($part);
482: for (my $i=0; $i < scalar(@ids); $i++) {
483: if ($types[$i] eq 'essay') {
484: my $partid = $part.'_'.$ids[$i];
485: if (&Apache::lonnet::EXT("resource.$partid.uploadedfiletypes") ne '') {
486: $needs_upload = 1;
487: last;
488: }
1.493 raeburn 489: }
490: }
491: }
1.495 raeburn 492: }
493: }
1.493 raeburn 494: }
495: }
496: }
497: }
1.495 raeburn 498: if ($needs_upload) {
499: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
500: }
1.478 raeburn 501: }
1.425 raeburn 502:
1.344 albertel 503: my %body_args;
504: if (defined($found{'html'})) {
505: $body_args{'skip_phases'}{'head'}=1;
506: } else {
1.343 albertel 507:
1.345 albertel 508: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 509:
1.379 albertel 510: $extra_head .= &Apache::londefdef::generate_css_links();
511:
1.384 albertel 512: if ($env{'request.state'} eq 'construct') {
1.343 albertel 513: $extra_head.=&Apache::edit::js_change_detection().
514: "<script type=\"text/javascript\">\n".
515: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
516: &Apache::loncommon::browser_and_searcher_javascript().
517: "\n</script>\n";
1.512.2.9 raeburn 518: if ($target eq 'edit') {
519: $extra_head .= &Apache::edit::js_update_linknum();
520: }
1.343 albertel 521: }
1.159 albertel 522: }
1.343 albertel 523:
1.446 bisitz 524: my $pageheader = '';
1.344 albertel 525: if (defined($found{'body'})) {
526: $body_args{'skip_phases'}{'body'}=1;
527: } elsif (!defined($found{'body'})
528: && $env{'request.state'} eq 'construct') {
1.343 albertel 529: if ($target eq 'web' || $target eq 'edit') {
1.512.2.3 raeburn 530: # Breadcrumbs for Authoring Space
1.450 bisitz 531: &Apache::lonhtmlcommon::clear_breadcrumbs();
532: &Apache::lonhtmlcommon::add_breadcrumb({
1.512.2.3 raeburn 533: 'text' => 'Authoring Space',
1.497 raeburn 534: 'href' => &Apache::loncommon::authorspace($env{'request.uri'}),
1.450 bisitz 535: });
1.460 droeschl 536: # breadcrumbs (and tools) will be created
537: # in start_page->bodytag->innerregister
538:
1.450 bisitz 539: # FIXME Where are we?
540: # &Apache::lonhtmlcommon::add_breadcrumb({
541: # 'text' => 'Problem Editing', # 'Problem Testing'
542: # 'href' => '',
543: # });
1.460 droeschl 544: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 545: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 546: }
1.272 albertel 547: } elsif (!defined($found{'body'})) {
1.343 albertel 548: my %add_entries;
1.159 albertel 549: my $background=&Apache::lonxml::get_param('background',$parstack,
550: $safeeval);
1.343 albertel 551: if ($background ne '' ) {
552: $add_entries{'background'} = $background;
553: }
1.344 albertel 554:
1.290 albertel 555: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
556: $safeeval);
1.446 bisitz 557: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 558:
1.446 bisitz 559: $body_args{'bgcolor'} = $bgcolor;
560: # $body_args{'no_title'} = 1;
561: $body_args{'force_register'} = 1;
562: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 563: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 564: $body_args{'only_body'} = 1;
1.512.2.7 raeburn 565: } elsif ($target eq 'web') {
566: $body_args{'print_suppress'} = 1;
1.446 bisitz 567: }
1.344 albertel 568: }
1.365 albertel 569: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 570: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
571: \%body_args);
1.446 bisitz 572: $page_start .= $pageheader;
1.462 raeburn 573: if (!defined($found{'body'})
574: && $env{'request.state'} ne 'construct'
575: && ($target eq 'web' || $target eq 'webgrade')) {
576:
577: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
578: if ($symb eq '' && !$publicuser) {
579: $page_start .= '<p class="LC_info">'
580: .&mt('Browsing resource, all submissions are temporary.')
581: .'</p>';
1.457 bisitz 582: }
1.344 albertel 583: }
584:
1.409 albertel 585: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 586: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 587: }
588: my $form_tag_start;
589: if (!defined($found{'form'})) {
1.337 albertel 590: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 591: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 592: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 593: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 594: $form_tag_start.=$uri.'" ';
595: if ($target eq 'edit') {
596: $form_tag_start.=&Apache::edit::form_change_detection();
597: }
1.493 raeburn 598: my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
599: my ($path,$multiresp) =
600: &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
1.495 raeburn 601: if (($is_task) || ($needs_upload)) {
602: $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
1.478 raeburn 603: }
1.368 albertel 604: $form_tag_start.='>'."\n";
1.355 albertel 605:
606: if ($symb =~ /\S/) {
607: $symb=
608: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
609: $form_tag_start.=
1.368 albertel 610: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 611: }
1.159 albertel 612: }
1.512.2.9 raeburn 613: return ($page_start,$form_tag_start,$partlist);
1.105 albertel 614: }
615:
1.141 matthew 616: #use Time::HiRes();
1.105 albertel 617: sub get_resource_name {
1.159 albertel 618: my ($parstack,$safeeval)=@_;
1.388 foxr 619: my $name;
1.204 albertel 620: if (defined($Apache::lonhomework::name)) {
1.388 foxr 621: $name = $Apache::lonhomework::name;
622: } else {
623: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 624: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 625: if ($name eq '') {
626: $name=&Apache::lonnet::EXT('resource.title');
627: if ($name eq 'con_lost') { $name = ''; }
628: }
629: if ($name!~/\S+/) {
630: $name=$env{'request.uri'};
631: $name=~s-.*/([^/]+)$-$1-;
632: }
633: # The name has had html tags escaped:
634:
635: $name=~s/</</gs;
636: $name=~s/>/>/gs;
637:
638: $Apache::lonhomework::name=$name;
1.204 albertel 639: }
1.159 albertel 640: return $name;
1.105 albertel 641: }
642:
643: sub setup_rndseed {
1.512.2.9 raeburn 644: my ($safeeval,$target,$probpartlist)=@_;
1.367 albertel 645: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 646: my ($questiontype,$set_safespace,$rndseed);
647: if ($target eq 'analyze') {
648: $questiontype = $env{'form.grade_questiontype'};
649: }
650: unless (defined($questiontype)) {
651: $questiontype = $Apache::lonhomework::type;
652: }
1.512.2.14! raeburn 653: if (($env{'request.state'} eq "construct")
! 654: || ($symb eq '')
! 655: || ($Apache::lonhomework::type eq 'practice')
! 656: || ($Apache::lonhomework::history{'resource.CODE'})
! 657: || (($env{'form.code_for_randomlist'}) && ($target eq 'analyze'))) {
1.316 www 658: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 659: ['rndseed']);
1.284 albertel 660: $rndseed=$env{'form.rndseed'};
1.159 albertel 661: if (!$rndseed) {
1.162 albertel 662: $rndseed=$Apache::lonhomework::history{'rndseed'};
663: if (!$rndseed) {
664: $rndseed=time;
665: }
1.512.2.14! raeburn 666: unless ($env{'form.code_for_randomlist'}) {
! 667: $env{'form.rndseed'}=$rndseed;
! 668: }
1.162 albertel 669: }
1.479 raeburn 670: if (($env{'request.state'} eq "construct") &&
671: ($Apache::lonhomework::type eq 'randomizetry')) {
672: my $tries = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
673: if ($tries) {
674: $rndseed += $tries;
675: }
1.480 raeburn 676: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 677: }
1.374 albertel 678: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
679: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 680: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 681: srand(time);
682: $rndseed=int(rand(2100000000));
1.284 albertel 683: $env{'form.rndseed'}=$rndseed;
684: delete($env{'form.resetdata'});
685: delete($env{'form.newrandomization'});
1.159 albertel 686: }
1.488 www 687: $rndseed=~s/\,/\:/g;
688: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 689: if (defined($rndseed)) {
690: my ($c1,$c2)=split(/\:/,$rndseed);
691: unless ($c2) { $c2=0; }
692: unless (($c1==int($c1)) && ($c2==int($c2))) {
693: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
694: }
1.187 albertel 695: }
1.512.2.14! raeburn 696: if (($env{'form.code_for_randomlist'}) && ($target eq 'analyze')) {
! 697: $env{'form.CODE'} = $env{'form.code_for_randomlist'};
! 698: $rndseed=&Apache::lonnet::rndseed();
! 699: undef($env{'form.CODE'});
! 700: } elsif ($Apache::lonhomework::history{'resource.CODE'}) {
1.247 albertel 701: $rndseed=&Apache::lonnet::rndseed();
702: }
1.479 raeburn 703: $set_safespace = 1;
704: } elsif ($questiontype eq 'randomizetry') {
705: if ($target eq 'analyze') {
706: if (defined($env{'form.grade_rndseed'})) {
707: $rndseed = $env{'form.grade_rndseed'};
708: }
709: }
710: unless (($target eq 'analyze') && (defined($rndseed))) {
711: $rndseed=&Apache::lonnet::rndseed();
1.512.2.9 raeburn 712: my $partfortries = $Apache::inputtags::part;
713: if (ref($probpartlist) eq 'ARRAY') {
714: if ((@{$probpartlist} == 1) && ($probpartlist->[0] ne $Apache::inputtags::part)) {
715: $partfortries = $probpartlist->[0];
716: }
717: }
718: my $curr_try = $Apache::lonhomework::history{"resource.$partfortries.tries"};
1.479 raeburn 719: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
720: $curr_try ++;
721: }
722: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
723: $rndseed = $1;
724: }
725: if ($curr_try) {
1.512.2.9 raeburn 726: my $reqtries = &Apache::lonnet::EXT("resource.$partfortries.randomizeontries");
1.479 raeburn 727: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
728: my $inc = int(($curr_try-1)/$reqtries);
729: $rndseed += $inc;
730: } else {
731: $rndseed += $curr_try;
732: }
733: }
734: }
735: $set_safespace = 1;
1.512.2.9 raeburn 736: if ($target eq 'grade') {
737: $Apache::lonhomework::rawrndseed = $rndseed;
738: }
1.479 raeburn 739: }
740: if ($set_safespace) {
741: if ($safeeval) {
742: &Apache::lonxml::debug("Setting rndseed to $rndseed");
743: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
744: }
745: }
746: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
747: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 748: }
749: return $rndseed;
1.105 albertel 750: }
751:
1.268 albertel 752: sub remember_problem_state {
753: return '
1.284 albertel 754: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
755: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
756: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 757: }
758:
1.487 www 759: sub problem_edit_action_button {
760: my ($name,$action,$accesskey,$text,$flag)=@_;
761: my $actionscript="setmode(this.form,'$action')";
762: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
763: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
764: }
765:
1.423 www 766: sub problem_edit_buttons {
1.487 www 767: my ($mode)=@_;
1.512.2.11 raeburn 768: # Buttons that save
769: my $result = '<div style="float:right">';
770: if ($mode eq 'editxml') {
771: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
772: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
773: } else {
774: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
775: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
776: }
777: $result.="\n</div>\n";
1.487 www 778: # Buttons that do not save
1.512.2.11 raeburn 779: $result .= '<div>'.
1.487 www 780: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
781: if ($mode eq 'editxml') {
782: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
783: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
1.512.2.11 raeburn 784: if ($env{'environment.nocodemirror'}) {
785: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
786: }
1.487 www 787: } else {
788: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
789: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
790: }
791: $result.="\n</div>";
792: return $result;
1.423 www 793: }
794:
795: sub problem_edit_header {
1.512.2.11 raeburn 796: my ($mode)=@_;
797: my $return = '<input type="hidden" name="submitted" value="edit" />'.
1.487 www 798: &remember_problem_state('edit').'
1.512.2.11 raeburn 799: <div class="LC_edit_problem_header">
800: <div class="LC_edit_problem_header_title">
801: '.&mt('Problem Editing').$mode.&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
802: </div><div class="LC_edit_actionbar" id="actionbar">'.
803: '<input type="hidden" name="problemmode" value="saveedit" />'.
804: &problem_edit_buttons();
805:
806: $return .= '</div></div>' . &Apache::lonxml::message_location();
807: $return .= '<link rel="stylesheet" href="/adm/codemirror/codemirror-combined.css" />
808: <script type="text/javascript" src="/adm/codemirror/codemirror-compressed-colorful.js"></script>';
809:
810: $return .= '<script type="text/javascript" src="/adm/jQuery/addons/jquery-scrolltofixed.js"></script>
811: <script type="text/javascript">
812: // unless internet explorer
813: if (!(window.navigator.appName == "Microsoft Internet Explorer" && (document.documentMode || document.compatMode))){
814: $(document).ready(
815: function() {
816: $(\'.LC_edit_actionbar\').scrollToFixed(
817: {
818: fixed: function(){
819: //$(this).find(\'.LC_edit_actionbar\').css(\'height\', \'31px\');
820: $(this).find(\'.LC_edit_actionbar\');
821: }
822: }
823: );
824: }
825: );
826: }
827: </script>
828: <table id="LC_edit_problem_colorful" border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
829: return $return;
1.105 albertel 830: }
831:
1.512.2.11 raeburn 832:
1.105 albertel 833: sub problem_edit_footer {
1.512.2.11 raeburn 834: my $resource = $env{'request.ambiguous'};
1.412 albertel 835: return '</td></tr></table><br />
836: <div class="LC_edit_problem_footer">
1.453 bisitz 837: <hr />'.
1.423 www 838: &problem_edit_buttons().'
1.459 bisitz 839: <hr style="clear:both;" />
1.512.2.11 raeburn 840: <script type="text/javascript">
841: restoreState("'.$resource.'");
842: restoreScrollPosition("'.$resource.'");
843: </script>
1.412 albertel 844: </div>
845: '.
1.342 albertel 846: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 847: }
848:
1.235 albertel 849: sub option {
850: my ($value,$name) = @_;
851: my $result ="<option value='".$value."' ";
1.284 albertel 852: if ($env{'form.'.$name} eq $value) {
1.235 albertel 853: $result.=" selected='on' ";
854: }
855: $result.='>';
856: return $result;
857: }
858:
1.105 albertel 859: sub problem_web_to_edit_header {
1.159 albertel 860: my ($rndseed)=@_;
1.406 albertel 861: my $result .= '<div class="LC_edit_problem_header">';
862:
863: if (!$Apache::lonhomework::parsing_a_task) {
864: $result .=
865: '<div class="LC_edit_problem_header_title">'.
866: &mt('Problem Testing').
867: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
868: '</div>';
869: } else {
870: $result .=
871: '<div class="LC_edit_problem_header_title">'.
872: &mt('Task Testing').
873: '</div>';
874: }
875:
1.315 albertel 876: my $show_all_foils_text =
877: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 878: &mt('Show All Instances')
879: : &mt('Show All Foils');
1.315 albertel 880:
1.452 bisitz 881: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
882: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 883: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 884: $show_all.= ' /> '.$show_all_foils_text
885: .'</label></span>';
1.406 albertel 886:
887:
1.384 albertel 888:
1.406 albertel 889: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 890: if (!$Apache::lonhomework::parsing_a_task) {
891: $result.="
1.406 albertel 892: <div class='LC_edit_problem_header_row1'>
893: <span class=\"LC_nobreak\">
1.405 albertel 894: ".&mt("Problem Status:")."
1.235 albertel 895: <select name='problemstate'>
1.270 albertel 896: <option value=''></option>
1.235 albertel 897: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
898: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
899: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
900: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
901: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
902: </select>
1.406 albertel 903: </span>
904: <span class=\"LC_nobreak\">
1.405 albertel 905: ".&mt("Problem Type:")."
1.235 albertel 906: <select name='problemtype'>
1.270 albertel 907: <option value=''></option>
1.512.2.1 raeburn 908: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 909: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 910: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 911: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
912: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
913: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 914: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 915: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 916: </select>
1.406 albertel 917: </span>
918: $show_all
919: </div>
920: <div class='LC_edit_problem_header_row2'>
921: <span class=\"LC_nobreak\">
1.405 albertel 922: ".&mt("Feedback Mode:")."
1.235 albertel 923: <select name='problemstatus'>
924: <option value=''></option>
1.242 albertel 925: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.512.2.6 raeburn 926: ".&option('no', 'problemstatus').&mt("Don't Show Incorrect/Correct Feedback")."</option>
1.405 albertel 927: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 928: </select>
1.406 albertel 929: </span>
930: ";
931:
1.376 albertel 932: } elsif ($Apache::lonhomework::parsing_a_task) {
933: $result.="
1.406 albertel 934: <div class='LC_edit_problem_header_row1'>
935: <span class=\"LC_nobreak\">
1.405 albertel 936: ".&mt("Problem Status:")."
1.376 albertel 937: <select name='problemstate'>
938: <option value=''></option>
939: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
940: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
941: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
942: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
943: </select>
1.406 albertel 944: </span>
945: $show_all
946: ";
947: }
948: $result.='
949: <span class="LC_nobreak">
950: '.&mt('Apply style file: ').'
951: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
952: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
953: </span>
1.422 www 954: </div>
955: <div class="LC_edit_problem_header_row1">'.
956: &Apache::lonxml::renderingoptions().'
1.406 albertel 957: </div>
958: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
959: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
960: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
961: </div>
1.453 bisitz 962: <hr />
1.406 albertel 963: <div class="LC_edit_problem_header_randomize_row">
964: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
965: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 966: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 967: $rndseed.'"
968: onchange="javascript:document.lonhomework.changerandseed.click()" />';
969:
970: if (!$Apache::lonhomework::parsing_a_task) {
971: my $numtoanalyze=$env{'form.numtoanalyze'};
972: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 973: $result .= '<span class="LC_nobreak">'.
974: &mt('[_1] for [_2] versions.',
1.416 raeburn 975: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 976: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
977: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 978: $numtoanalyze.'" size="5" />').
979: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
980: '</span>';
981:
1.313 albertel 982: }
1.406 albertel 983:
984: $result.='
985: </div>
1.453 bisitz 986: <hr />
1.447 bisitz 987: <div>';
1.416 raeburn 988: $result.='<input type="hidden" name="problemmode" value="view" />';
989: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
990: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
991: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
992: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 993: $result.='
994: </div>
1.453 bisitz 995: <hr />
1.409 albertel 996: '.&Apache::lonxml::message_location().'
1.406 albertel 997: </div>';
1.159 albertel 998: return $result;
1.48 albertel 999: }
1000:
1.65 albertel 1001: sub initialize_storage {
1.357 albertel 1002: my ($given_symb) = @_;
1.353 albertel 1003: undef(%Apache::lonhomework::results);
1004: undef(%Apache::lonhomework::history);
1.357 albertel 1005: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1006: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 1007:
1008: # anonymous users (CODEd exams) have no data
1009: if ($name eq 'anonymous'
1010: && !defined($domain)) {
1011: return;
1012: }
1013:
1.333 albertel 1014: if ($env{'request.state'} eq 'construct'
1015: || $symb eq ''
1016: || $Apache::lonhomework::type eq 'practice') {
1017:
1018: my $namespace = $symb || $env{'request.uri'};
1019: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 1020: ($env{'form.resetdata'} eq &mt('New Problem Variation')
1021: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 1022: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1023: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
1024: &Apache::lonxml::debug("Attempt reset");
1025: }
1.159 albertel 1026: %Apache::lonhomework::history=
1.333 albertel 1027: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.512.2.9 raeburn 1028: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1029: &Apache::lonxml::debug("Return message of $temp");
1030: } else {
1031: %Apache::lonhomework::history=
1032: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1033: }
1.353 albertel 1034:
1.159 albertel 1035: #ignore error conditions
1.512.2.9 raeburn 1036: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1037: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 1038: }
1039:
1.435 jms 1040: =pod
1041:
1042: =item finalize_storage()
1043:
1.512.2.9 raeburn 1044: Stores away the result hash to a student's environment;
1045: checks form.grade_ for specific values, otherwise stores
1046: to the running user's environment.
1047:
1048: &check_correctness_changes() is called in two circumstances
1049: in which the results hash is to be stored permanently, for
1050: grading triggered by a student's submission, where feedback on
1051: correctness is to be provided to the student.
1052:
1053: 1. Immediately prior to storing the results hash
1054:
1055: To handle the case where a student's submission (and award) were
1056: stored after history was retrieved in &initialize_storage(), e.g.,
1057: if a student submitted answers in quick succession (e.g., from
1058: multiple tabs). &Apache::inputtags::hidealldata() is called for
1059: any parts with out-of-order storage (i.e., correct then incorrect,
1060: where awarded >= 1 when correct).
1061:
1062: 2. Immediately after storing the results hash
1063:
1064: To handle the case where lond on the student's homeserver returns
1065: delay:N -- where N is the number of transactions between the last
1066: retrieved in &initialize_storage() and the last stored immediately
1067: before permanent storage of the current transaction via
1068: lond::store_handler(). &Apache::grades::makehidden() is called
1069: for any parts with out-of-order storage (i.e., correct then incorrect,
1070: where awarded >= 1 when correct).
1071:
1072: Will call &store_aggregates() to increment totals for attempts,
1073: students, and corrects, if running user has student role.
1.435 jms 1074:
1075: =cut
1076:
1077:
1.65 albertel 1078: sub finalize_storage {
1.357 albertel 1079: my ($given_symb) = @_;
1.159 albertel 1080: my $result;
1.289 albertel 1081: if (%Apache::lonhomework::results) {
1.323 albertel 1082: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
1083: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 1084: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1085: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 1086: if ($env{'request.state'} eq 'construct'
1087: || $symb eq ''
1088: || $Apache::lonhomework::type eq 'practice') {
1089: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 1090: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 1091: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 1092: $namespace,'',$domain,$name);
1.159 albertel 1093: &Apache::lonxml::debug('Construct Store return message:'.$result);
1094: } else {
1.512.2.9 raeburn 1095: my ($laststore,$checkedparts,@parts,%postcorrect);
1096: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1097: (!$Apache::lonhomework::scantronmode) && (!defined($env{'form.grade_symb'})) &&
1098: (!defined($env{'form.grade_courseid'}))) {
1099: if ($Apache::lonhomework::history{'version'}) {
1100: $laststore = $Apache::lonhomework::history{'version'}.'='.
1101: $Apache::lonhomework::history{'timestamp'};
1102: } else {
1103: $laststore = '0=0';
1104: }
1105: my %record = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1106: if ($record{'version'}) {
1107: my ($newversion,$oldversion,$oldtimestamp);
1108: if ($Apache::lonhomework::history{'version'}) {
1109: $oldversion = $Apache::lonhomework::history{'version'};
1110: $oldtimestamp = $Apache::lonhomework::history{'timestamp'};
1111: } else {
1112: $oldversion = 0;
1113: $oldtimestamp = 0;
1114: }
1115: if ($record{'version'} > $oldversion) {
1116: if ($record{'timestamp'} >= $oldtimestamp) {
1117: $laststore = $record{'version'}.'='.$record{'timestamp'};
1118: $newversion = $record{'version'} + 1;
1119: $checkedparts = 1;
1120: foreach my $key (keys(%Apache::lonhomework::results)) {
1121: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1122: my $part = $1;
1123: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1124: push(@parts,$part);
1125: }
1126: }
1127: }
1128: if (@parts) {
1129: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1130: \%record,\@parts,$newversion,
1131: $oldversion);
1132: if (@parts_to_hide) {
1133: foreach my $part (@parts_to_hide) {
1134: $postcorrect{$part} = 1;
1135: &Apache::inputtags::hidealldata($part);
1136: }
1137: }
1138: }
1139: }
1140: }
1141: }
1142: }
1.159 albertel 1143: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
1.512.2.9 raeburn 1144: $symb,$courseid,$domain,$name,$laststore);
1145: if ($result =~ /^delay\:(\d+)$/) {
1146: my $numtrans = $1;
1147: my ($oldversion) = split(/=/,$laststore);
1148: if ($numtrans) {
1149: my $newversion = $oldversion + 1 + $numtrans;
1150: my @possparts;
1151: if ($checkedparts) {
1152: foreach my $part (@parts) {
1153: unless ($postcorrect{$part}) {
1154: push(@possparts,$part);
1155: }
1156: }
1157: } else {
1158: foreach my $key (keys(%Apache::lonhomework::results)) {
1159: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1160: my $part = $1;
1161: unless ($postcorrect{$part}) {
1162: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1163: push(@possparts,$part);
1164: }
1165: }
1166: }
1167: }
1168: }
1169: if (@possparts) {
1170: my %newrecord = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1171: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1172: \%newrecord,\@possparts,$newversion,
1173: $oldversion);
1174: if (@parts_to_hide) {
1175: my $partslist = join(',',@parts_to_hide);
1176: &Apache::grades::makehidden($newversion,$partslist,\%newrecord,$symb,$domain,$name,1);
1177: }
1178: }
1179: }
1180: }
1.159 albertel 1181: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 1182: &store_aggregates($symb,$courseid);
1.159 albertel 1183: }
1.323 albertel 1184: } else {
1185: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 1186: }
1.159 albertel 1187: return $result;
1.65 albertel 1188: }
1189:
1.435 jms 1190: =pod
1191:
1.512.2.9 raeburn 1192: =item check_correctness_changes()
1193:
1194: For all parts for which current results contain a solved status
1195: of "incorrect_attempted", check if there was a transaction in which
1196: solved was set to "correct_by_student" in the time since the last
1197: transaction (retrieved when &initialize_storage() was called i.e.,
1198: when &start_problem() was called), unless:
1199: (a) questiontype parameter is set to survey or anonymous survey (+/- credit)
1200: (b) problemstatus is set to no or no_feedback_ever
1201: If such a transaction exists, and did not occur after "reset status"
1202: by a user with grading privileges, then the current transaction is an
1203: example of an out-of-order transaction (i.e., incorrect occurring after
1204: correct). Accordingly, the current transaction should be hidden.
1205:
1206: =cut
1207:
1208:
1209: sub check_correctness_changes {
1210: my ($symb,$courseid,$domain,$name,$record,$parts,$newversion,$oldversion) = @_;
1211: my @parts_to_hide;
1212: unless ((ref($record) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
1213: return @parts_to_hide;
1214: }
1215: if (@{$parts}) {
1216: my $usec;
1217: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1218: ($env{'request.course.id'} eq $courseid)) {
1219: $usec = $env{'request.course.sec'};
1220: } else {
1221: $usec = &Apache::lonnet::getsection($domain,$name,$courseid);
1222: }
1223: foreach my $id (@{$parts}) {
1224: next if (($Apache::lonhomework::results{'resource.'.$id.'.type'} =~ /survey/) ||
1225: (&Apache::lonnet::EXT("resource.$id.problemstatus",$symb,
1226: $domain,$name,$usec,undef,$courseid) =~ /^no/));
1227: my $reset;
1228: for (my $i=$newversion-1; $i>=$oldversion; $i--) {
1229: if (($record->{$i.':resource.'.$id.'.regrader'}) &&
1230: ($record->{$i.':resource.'.$id.'.tries'} eq '') &&
1231: ($record->{$i.':resource.'.$id.'.award'} eq '')) {
1232: $reset = 1;
1233: } elsif (($record->{$i.":resource.$id.solved"} eq 'correct_by_student') &&
1234: ($record->{$i.":resource.$id.awarded"} >= 1)) {
1235: unless ($reset) {
1236: push(@parts_to_hide,$id);
1237: last;
1238: }
1239: }
1240: }
1241: }
1242: }
1243: return @parts_to_hide;
1244: }
1245:
1246: =pod
1247:
1.435 jms 1248: item store_aggregates()
1249:
1250: Sends hash of values to be incremented in nohist_resourcetracker.db
1251: for the course. Increments total number of attempts, unique students
1252: and corrects for each part for an instance of a problem, as appropriate.
1253:
1254: =cut
1255:
1.285 raeburn 1256: sub store_aggregates {
1257: my ($symb,$courseid) = @_;
1.479 raeburn 1258: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 1259: my @parts;
1.288 albertel 1260: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
1261: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 1262: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 1263: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 1264: push(@parts, $1);
1.285 raeburn 1265: }
1266: }
1.286 albertel 1267: foreach my $part (@parts) {
1.470 raeburn 1268: if ($env{'request.role'} =~/^st/) {
1269: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
1270: eq 'APPROX_ANS' ||
1271: $Apache::lonhomework::results{'resource.'.$part.'.award'}
1272: eq 'EXACT_ANS') {
1273: $aggregate{$symb."\0".$part."\0correct"} = 1;
1274: }
1275: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1276: $aggregate{$symb."\0".$part."\0users"} = 1;
1277: } else {
1278: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1279: if ($last_reset) {
1280: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1281: $aggregate{$symb."\0".$part."\0users"} = 1;
1282: }
1283: }
1284: }
1285: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 1286: }
1.470 raeburn 1287: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 1288: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
1289: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
1290: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
1291: $randtrycounter{$symb."\0".$part} = 1;
1292: } else {
1293: $anoncounter{$symb."\0".$part} = 1;
1294: }
1.470 raeburn 1295: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
1296: if ($needsrelease) {
1297: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
1298: if ($curr_required eq '') {
1.471 raeburn 1299: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1300: } else {
1301: my ($currmajor,$currminor) = split(/\./,$curr_required);
1302: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
1303: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 1304: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1305: }
1.292 raeburn 1306: }
1307: }
1.285 raeburn 1308: }
1309: }
1.512.2.9 raeburn 1310: if (keys(%aggregate) > 0) {
1.289 albertel 1311: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 1312: $cdomain,$cname);
1313: }
1.472 raeburn 1314: if (keys(%anoncounter) > 0) {
1.481 raeburn 1315: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
1316: $cdomain,$cname);
1.472 raeburn 1317: }
1.479 raeburn 1318: if (keys(%randtrycounter) > 0) {
1.481 raeburn 1319: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
1320: $cdomain,$cname);
1.479 raeburn 1321: }
1.292 raeburn 1322: }
1.289 albertel 1323:
1.65 albertel 1324: sub checkout_msg {
1.211 albertel 1325: my %lt=&Apache::lonlocal::texthash(
1326: 'resource'=>'The resource needs to be checked out',
1327: 'id_expln'=>'As a resource gets checked out, a unique timestamped ID is given to it, and a permanent record is left in the system.',
1328: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
1.512.2.1 raeburn 1329: 'checkout'=>'Check out Exam for Viewing',
1330: 'checkout?'=>'Check out Exam?');
1.352 albertel 1331: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 1332: return (<<ENDCHECKOUT);
1.211 albertel 1333: <h2>$lt{'resource'}</h2>
1334: <p>$lt{'id_expln'}</p>
1.449 bisitz 1335: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 1336: <form name="checkout" method="post" action="$uri">
1.91 albertel 1337: <input type="hidden" name="doescheckout" value="yes" />
1.512.2.4 raeburn 1338: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onclick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 1339: </form>
1340: ENDCHECKOUT
1341: }
1342:
1.252 albertel 1343: sub firstaccess_msg {
1.253 albertel 1344: my ($time,$symb)=@_;
1.414 albertel 1345: my $result;
1346: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1347: if ($interval[1] eq 'map') {
1348: my ($map)=&Apache::lonnet::decode_symb($symb);
1349: my $foldertitle=&Apache::lonnet::gettitle($map);
1350:
1351: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 1352: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
1353: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1354: ,$foldertitle,$time)."</p>";
1.414 albertel 1355: } elsif ($interval[1] eq 'course') {
1356: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 1357: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 1358: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 1359: ,$course,$time)."</p>";
1.414 albertel 1360: } else {
1361: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1362: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1363: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1364: ,$title,$time)."</p>";
1.414 albertel 1365: }
1.352 albertel 1366: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1367: my $buttontext = &mt('Show Resource');
1368: my $timertext = &mt('Start Timer?');
1.414 albertel 1369: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1370: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1371: <input type="hidden" name="markaccess" value="yes" />
1.512.2.4 raeburn 1372: <input type="button" name="accessbutton" value="$buttontext" onclick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1373: </form>
1374: ENDCHECKOUT
1.414 albertel 1375: return $result;
1.252 albertel 1376: }
1377:
1.204 albertel 1378: sub init_problem_globals {
1379: my ($type)=@_;
1380: #initialize globals
1.308 foxr 1381: # For problems, we start out in part 0 (outside a <part> tag).
1382: # and part 0 is used to describe the main body of the <problem>
1383: #
1.204 albertel 1384: if ($type eq 'problem') {
1385: $Apache::inputtags::part='0';
1386: @Apache::inputtags::partlist=('0');
1.405 albertel 1387: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1388: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1389:
1.266 albertel 1390: } elsif ($type eq 'library') {
1.204 albertel 1391: $Apache::inputtags::part='';
1392: @Apache::inputtags::partlist=();
1.405 albertel 1393: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1394: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1395:
1.304 albertel 1396: } elsif ($type eq 'Task') {
1397: $Apache::inputtags::part='0';
1398: @Apache::inputtags::partlist=('0');
1.405 albertel 1399: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1400: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1401: }
1.477 www 1402: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1403: @Apache::inputtags::responselist = ();
1404: @Apache::inputtags::importlist = ();
1405: @Apache::inputtags::previous=();
1406: @Apache::inputtags::previous_version=();
1.512.2.10 raeburn 1407: $Apache::inputtags::leniency='';
1.204 albertel 1408: $Apache::structuretags::printanswer='No';
1409: @Apache::structuretags::whileconds=();
1410: @Apache::structuretags::whilebody=();
1411: @Apache::structuretags::whileline=();
1412: $Apache::lonhomework::scantronmode=0;
1413: undef($Apache::lonhomework::name);
1.358 albertel 1414: undef($Apache::lonhomework::default_type);
1415: undef($Apache::lonhomework::type);
1.204 albertel 1416: }
1417:
1418: sub reset_problem_globals {
1419: my ($type)=@_;
1420: undef(%Apache::lonhomework::history);
1421: undef(%Apache::lonhomework::results);
1422: undef($Apache::inputtags::part);
1.512.2.10 raeburn 1423: undef($Apache::inputtags::leniency);
1.498 raeburn 1424: if ($type eq 'Task') {
1425: undef($Apache::inputtags::slot_name);
1.512.2.9 raeburn 1426: } elsif ($type eq 'problem') {
1427: undef($Apache::lonhomework::rawrndseed);
1.498 raeburn 1428: }
1.208 albertel 1429: #don't undef this, lonhomework.pm takes care of this, we use this to
1430: #detect if we try to do 2 problems in one file
1431: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1432: undef($Apache::lonhomework::name);
1.358 albertel 1433: undef($Apache::lonhomework::default_type);
1434: undef($Apache::lonhomework::type);
1435: undef($Apache::lonhomework::scantronmode);
1436: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1437: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1438: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1439: }
1440:
1.241 albertel 1441: sub set_problem_state {
1.240 albertel 1442: my ($part)=@_;
1.284 albertel 1443: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1444: $Apache::lonhomework::history{"resource.$part.solved"}=
1445: 'correct_by_student';
1446: }
1447: }
1448:
1.241 albertel 1449: sub get_problem_status {
1450: my ($part)=@_;
1.267 albertel 1451: my $problem_status;
1.284 albertel 1452: if ($env{'request.state'} eq 'construct' &&
1453: defined($env{'form.problemstatus'})) {
1454: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1455: } else {
1456: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1457: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1458: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1459: }
1460: return $problem_status;
1461: }
1462:
1.9 albertel 1463: sub start_problem {
1.326 albertel 1464: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1465:
1.311 foxr 1466: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1467: if (!$Apache::lonxml::metamode) {
1468: &Apache::lonxml::startredirection();
1469: }
1.311 foxr 1470:
1.308 foxr 1471: # Problems don't nest and we don't allow more than one <problem> in
1472: # a .problem file.
1473: #
1.184 albertel 1474: if ( $Apache::inputtags::part ne '' ||
1475: $Apache::lonhomework::parsing_a_problem) {
1476: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1477: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1478: return '';
1479: }
1.184 albertel 1480:
1481: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1482: &init_problem_globals('problem');
1.166 albertel 1483:
1.284 albertel 1484: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1485: $Apache::lonhomework::scantronmode=1;
1486: }
1.161 albertel 1487:
1.159 albertel 1488: if ($target ne 'analyze') {
1.415 raeburn 1489: my $type = &Apache::lonnet::EXT('resource.0.type');
1490: $Apache::lonhomework::type=$type;
1.284 albertel 1491: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1492: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1493: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1494: }
1.332 albertel 1495: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1496: }
1.164 albertel 1497: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1498: my $uri=$env{'request.uri'};
1.159 albertel 1499: if ($uri=~/\.(\w+)$/) {
1500: $Apache::lonhomework::type=$1;
1501: &Apache::lonxml::debug("Using type of $1");
1502: } else {
1503: $Apache::lonhomework::type='problem';
1504: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1505: }
1.87 albertel 1506: }
1.301 albertel 1507: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1508:
1.363 albertel 1509: &initialize_storage();
1.389 albertel 1510: if ($target ne 'analyze'
1511: && $env{'request.state'} eq 'construct') {
1512: &set_problem_state('0');
1513: }
1514:
1.366 albertel 1515: if ($target eq 'web') {
1516: &Apache::lonxml::debug(" grading history ");
1517: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1518: }
1.363 albertel 1519:
1.159 albertel 1520: #added vars to the scripting enviroment
1.213 albertel 1521: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1522: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1523: &Apache::run::run($expression,$safeeval);
1.159 albertel 1524: my $status;
1525: my $accessmsg;
1.508 raeburn 1526: my $resource_due;
1.159 albertel 1527:
1.343 albertel 1528: my $name= &get_resource_name($parstack,$safeeval);
1.512.2.9 raeburn 1529: my ($result,$form_tag_start,$slot_name,$slot,$probpartlist);
1.506 raeburn 1530:
1531: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1532: $target eq 'tex') {
1533: if ($env{'form.markaccess'}) {
1534: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1.512.2.8 raeburn 1535: &Apache::lonnet::set_first_access($interval[1],$interval[0]);
1.506 raeburn 1536: }
1537:
1538: ($status,$accessmsg,$slot_name,$slot) =
1539: &Apache::lonhomework::check_slot_access('0','problem');
1540: push (@Apache::inputtags::status,$status);
1541: }
1542:
1.354 albertel 1543: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1544: || $target eq 'edit') {
1.512.2.9 raeburn 1545: ($result,$form_tag_start,$probpartlist) =
1.350 albertel 1546: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1547: $name);
1.512.2.9 raeburn 1548: } elsif (($target eq 'grade') && ($Apache::lonhomework::type eq 'randomizetry')) {
1549: my ($symb)= &Apache::lonnet::whichuser();
1550: my $navmap = Apache::lonnavmaps::navmap->new();
1551: if (ref($navmap)) {
1552: my $res = $navmap->getBySymb($symb);
1553: if (ref($res)) {
1554: $probpartlist = $res->parts();
1555: }
1556: }
1.350 albertel 1557: }
1558:
1.284 albertel 1559: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1560:
1.479 raeburn 1561: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1562: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1563: $target eq 'tex') {
1.479 raeburn 1564:
1.159 albertel 1565: #handle rand seed in construction space
1.512.2.9 raeburn 1566: my $rndseed=&setup_rndseed($safeeval,$target,$probpartlist);
1567: if (($target eq 'grade') && &Apache::response::submitted()) {
1568: if ($Apache::lonhomework::type eq 'randomizetry') {
1569: $Apache::lonhomework::results{'resource.0.rndseed'}=$rndseed;
1570: } else {
1571: my @parts;
1572: if (ref($probpartlist) eq 'ARRAY') {
1573: @parts = @{$probpartlist};
1574: }
1575: unless (@parts) {
1576: $Apache::lonhomework::results{'resource.0.rndseed'}=$Apache::lonhomework::rawrndseed;
1577: }
1578: }
1579: }
1.367 albertel 1580: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 1581:
1.333 albertel 1582: if ($env{'request.state'} ne "construct" &&
1583: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1584: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1585: $rndseed.'" />'.
1586: '<input type="submit" name="resetdata"
1587: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1588: if (exists($env{'form.username'})) {
1589: $form_tag_start.=
1.164 albertel 1590: '<input type="hidden" name="username"
1.284 albertel 1591: value="'.$env{'form.username'}.'" />';
1.334 albertel 1592: }
1.462 raeburn 1593: if ($env{'request.role.adv'}) {
1594: $form_tag_start.= ' <label class="LC_nobreak">'
1595: .'<input type="checkbox" name="showallfoils"';
1596: if (defined($env{'form.showallfoils'})) {
1597: $form_tag_start.=' checked="checked"';
1598: }
1599: $form_tag_start.= ' /> '
1600: .&mt('Show All Foils')
1601: .'</label>';
1602: }
1.417 www 1603: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1604: $form_tag_start.=&practice_problem_header();
1.417 www 1605: }
1.462 raeburn 1606: $form_tag_start.='<hr />';
1.479 raeburn 1607: } elsif (($env{'request.state'} ne "construct") &&
1608: ($Apache::lonhomework::type eq 'randomizetry') &&
1609: ($status eq 'CAN_ANSWER')) {
1610: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1611: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1612: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1613: }
1.324 albertel 1614:
1.159 albertel 1615: my $expression='$external::datestatus="'.$status.'";';
1616: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1617: &Apache::run::run($expression,$safeeval);
1618: &Apache::lonxml::debug("Got $status");
1.324 albertel 1619:
1.159 albertel 1620: if (( $status eq 'CLOSED' ) ||
1621: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1622: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1623: ( $status eq 'BANNED') ||
1.216 albertel 1624: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1625: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1626: ( $status eq 'NOTRESERVABLE') ||
1627: ( $status eq 'RESERVABLE') ||
1628: ( $status eq 'RESERVABLE_LATER') ||
1.216 albertel 1629: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1630: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1631: $style);
1.159 albertel 1632: if ( $target eq "web" ) {
1.343 albertel 1633: my $msg;
1.159 albertel 1634: if ($status eq 'UNAVAILABLE') {
1.504 golterma 1635: $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1.441 raeburn 1636: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.504 golterma 1637: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1.499 raeburn 1638: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1639: ($status eq 'NOTRESERVABLE')) {
1.504 golterma 1640: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1.253 albertel 1641: } elsif ($status ne 'NOT_YET_VIEWED') {
1.504 golterma 1642: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1.499 raeburn 1643: }
1.216 albertel 1644: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1645: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1646: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1647: $msg.=&checkout_msg();
1.252 albertel 1648: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1649: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1650: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1651: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.499 raeburn 1652: } elsif ($status eq 'RESERVABLE') {
1653: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1654: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1655: '<br />'.
1656: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1657: } elsif ($status eq 'RESERVABLE_LATER') {
1658: $msg.=&mt('Window to make a reservation will open [_1].',
1659: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1660: } elsif ($status eq 'NOTRESERVABLE') {
1661: $msg.=&mt('Not available to make a reservation.');
1.159 albertel 1662: }
1663: $result.=$msg.'<br />';
1664: } elsif ($target eq 'tex') {
1.332 albertel 1665: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1666: : '\begin{minipage}{\textwidth}';
1.443 foxr 1667: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1668: $startminipage.'\vskip 0 mm';
1.159 albertel 1669: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1670: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1671: } else {
1.211 albertel 1672: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1673: }
1674: }
1.324 albertel 1675: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1676: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1677: $style);
1.324 albertel 1678: if ($target eq 'web') {
1.375 albertel 1679: $result .=
1680: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1681: } elsif ($target eq 'grade') {
1682: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1683: 'problem');
1684: }
1.159 albertel 1685: } elsif ($target eq 'web') {
1.508 raeburn 1686: if ($status eq 'CAN_ANSWER') {
1687: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1688: if ($slot_name ne '') {
1689: my $checked_in =
1690: $Apache::lonhomework::history{'resource.0.checkedin'};
1691: if ($checked_in eq '') {
1692: # unproctored slot access, self checkin
1693: &Apache::bridgetask::check_in('problem',undef,undef,
1694: $slot_name);
1695: $checked_in =
1696: $Apache::lonhomework::results{"resource.0.checkedin"};
1697: }
1698: if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1699: if ($slot->{'starttime'} < time()) {
1700: if (!$resource_due) {
1701: $resource_due = $slot->{'endtime'};
1702: } elsif ($slot->{'endtime'} < $resource_due) {
1703: $resource_due = $slot->{'endtime'};
1704: }
1705: }
1706: }
1707: }
1708: if ($resource_due) {
1709: my $time_left = $resource_due - time();
1710: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1711: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1712: }
1713: }
1714: }
1.368 albertel 1715: $result.="\n $form_tag_start \t".
1.227 albertel 1716: '<input type="hidden" name="submitted" value="yes" />';
1717: # create a page header and exit
1.284 albertel 1718: if ($env{'request.state'} eq "construct") {
1719: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1720: if ($Apache::lonhomework::type eq 'practice') {
1721: $result.= '<input type="submit" name="resetdata" '.
1722: 'value="'.&mt('New Problem Variation').'" />'.
1723: &practice_problem_header().'<hr />';
1724: }
1.227 albertel 1725: }
1726: # if we are viewing someone else preserve that info
1.284 albertel 1727: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1728: foreach my $field ('symb','courseid','domain','username') {
1729: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1730: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1731: }
1.479 raeburn 1732: foreach my $field ('trial','questiontype') {
1733: if ($env{"form.grade_$field"} ne '') {
1734: $result .= '<input type="hidden" name="grade_'.$field.
1735: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1736: }
1737: }
1.159 albertel 1738: }
1.490 raeburn 1739: if ($env{'form.grade_imsexport'}) {
1740: $result = '';
1741: }
1.159 albertel 1742: } elsif ($target eq 'tex') {
1.319 foxr 1743: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 1744: $result .= &select_metadata_hyphenation();
1745:
1.319 foxr 1746:
1.99 sakharuk 1747: }
1.159 albertel 1748: } elsif ($target eq 'edit') {
1.343 albertel 1749: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1750: $Apache::lonxml::warnings_error_header=
1751: &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 1752: my $temp=&Apache::edit::insertlist($target,$token);
1753: $result.=$temp;
1754: } elsif ($target eq 'modified') {
1755: $result=$token->[4];
1756: } else {
1757: # page_start returned a starting result, delete it if we don't need it
1758: $result = '';
1.99 sakharuk 1759: }
1.159 albertel 1760: return $result;
1.9 albertel 1761: }
1762:
1763: sub end_problem {
1.159 albertel 1764: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1765: my $result;
1.310 foxr 1766:
1.321 albertel 1767: if (!$Apache::lonxml::metamode) {
1768: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1769: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1770: }
1.319 foxr 1771:
1772: if ($target eq 'tex') {
1.321 albertel 1773: # Figure out the front matter and replace the
1774: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1775: # this in end_problem because whether or not we display due
1776: # dates depends on whether due dates have already been
1777: # displayed in the problem parts.
1778:
1.319 foxr 1779: my $frontmatter = '';
1780: my $startminipage = '';
1781: if (not $env{'form.problem_split'}=~/yes/) {
1782: $startminipage = '\begin{minipage}{\textwidth}';
1783: }
1784: my $id = $Apache::inputtags::part;
1785: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1786: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.512.2.9 raeburn 1787: my @packages = split(/,/,$packages);
1.319 foxr 1788: my $allow_print_points = 0;
1789: foreach my $partial_key (@packages) {
1790: if ($partial_key=~m/^part_0$/) {
1791: $allow_print_points=1;
1792: }
1793: }
1794: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1795: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1796: if (lc($env{'course.'.$env{'request.course.id'}.
1797: '.disableexampointprint'}) eq 'yes') {
1798: $allow_print_points=0;
1799: }
1800: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1801: 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 1802: &clear_required_languages();
1.319 foxr 1803: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1804: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1805:
1806: # Figure out what the due date is and if we need to print
1807: # it in the problem header. We have been logging the
1808: # last due date written to file.
1809:
1810: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1811: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1812: my $duedate_text = &mt('Due date: [_1]'
1813: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1814: my $temp_file;
1815: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1816:
1817: # Figure out what the last printed due date is or set it
1818: # to the epoch if no duedates have been printed.
1819:
1820: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1821: if (-e $filename) {
1822: $temp_file = Apache::File->new($filename);
1823: my @due_file = <$temp_file>;
1824: $due_file_content = $due_file[$#due_file];
1825: chomp $due_file_content;
1826: }
1827:
1828: # We display the due date iff it is not the same as the last
1829: # duedate in problem header ($due_file_content), and
1830: # none of our parts displayed a duedate.
1831: #
1832: my $parts_with_displayduedate;
1833: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1834: $parts_with_displayduedate =
1835: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1836: } else {
1837: $parts_with_displayduedate = 0;
1838: }
1839: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1840: $temp_file = Apache::File->new('>'.$filename);
1841: print $temp_file "$duetime\n";
1842: if (not $env{'request.symb'} =~ m/\.page_/) {
1843: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1844: $frontmatter .= $begin_doc.
1.448 bisitz 1845: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1846: } else {
1847: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1848: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1849: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1850: }
1.319 foxr 1851: }
1852: } else {
1.448 bisitz 1853: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1854: }
1855: } else {
1856: if (not $env{'request.symb'} =~ m/\.page_/) {
1857: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1858: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1859: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1860: }
1.319 foxr 1861: } else {
1.381 albertel 1862: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1863: }
1864: }
1865: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1866: }
1867:
1.159 albertel 1868: my $status=$Apache::inputtags::status['-1'];
1869: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1870: $target eq 'tex') {
1.249 albertel 1871: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1872: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1873: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1874: &Apache::inputtags::grade;
1.324 albertel 1875: } elsif ($status eq 'NEEDS_CHECKIN') {
1876: # no need to grade, and don't want to hide data
1.249 albertel 1877: } else {
1878: # move any submission data to .hidden
1879: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1880: }
1.159 albertel 1881: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1882: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1883: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1884: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1885: # if part is zero, no <part>s existed, so we need show the current
1886: # grading status
1887: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1888: $result.= $gradestatus;
1889: }
1890: if (
1.284 albertel 1891: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1892: ($target eq 'answer') || ($target eq 'tex')
1893: ) {
1.490 raeburn 1894: if (($target ne 'tex') &&
1895: ($env{'form.answer_output_mode'} ne 'tex') &&
1896: (!$env{'form.grade_imsexport'})) {
1.254 www 1897: $result.="</form>";
1.159 albertel 1898: }
1899: if ($target eq 'web') {
1.507 raeburn 1900: #
1901: # Closing </body></html> not added by end_page().
1902: # Added separately at end of this routine, after added
1903: # <script></script> so document will be valid xhtml.
1904: #
1905: $result.= &Apache::loncommon::end_page({'discussion' => 1,
1906: 'notbody' => 1});
1.159 albertel 1907: } elsif ($target eq 'tex') {
1.178 sakharuk 1908: my $endminipage = '';
1.284 albertel 1909: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1910: $endminipage = '\end{minipage}';
1911: }
1.284 albertel 1912: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1913: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1914: } else {
1.262 sakharuk 1915: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1916: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1917: $result .= $endminipage.'\end{document} ';
1918: } else {
1.382 albertel 1919: $result .= $endminipage;
1.262 sakharuk 1920: }
1.159 albertel 1921: }
1922: }
1923: }
1.476 www 1924: if ($target eq 'web') {
1925: $result.=&Apache::functionplotresponse::init_script();
1926: }
1.159 albertel 1927: if ($target eq 'grade') {
1928: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1929: &finalize_storage();
1930: }
1.284 albertel 1931: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1932: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1933: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1934: # normally we get it from above, but in CSTR
1.172 albertel 1935: # we always show answer mode too.
1.159 albertel 1936: }
1937: } elsif ($target eq 'meta') {
1938: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1939: @Apache::inputtags::response=();
1.159 albertel 1940: $result=&Apache::response::mandatory_part_meta;
1941: }
1.215 albertel 1942: $result.=&Apache::response::meta_part_order();
1.258 albertel 1943: $result.=&Apache::response::meta_response_order();
1.159 albertel 1944: } elsif ($target eq 'edit') {
1945: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1946: $result .= &problem_edit_footer();
1.320 albertel 1947: } elsif ($target eq 'modified') {
1948: $result .= $token->[2];
1.159 albertel 1949: }
1.155 albertel 1950:
1.284 albertel 1951: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1952: &Apache::inputtags::check_for_duplicate_ids();
1953: }
1.204 albertel 1954:
1955: &reset_problem_globals('problem');
1.159 albertel 1956:
1.502 foxr 1957: #
1958: # This shouild be just above the return so that the
1959: # time put in the javascript is as late as possible in the
1960: # computation:
1961: #
1962: if ($target eq 'web') {
1963: $result .= &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 1964: #
1965: # Closing tags delayed so any <script></script> tags
1966: # not in head can appear inside body, for valid xhtml.
1967: #
1968: $result .= "</body>\n</html>";
1.502 foxr 1969: }
1.159 albertel 1970: return $result;
1.48 albertel 1971: }
1972:
1.108 albertel 1973:
1.48 albertel 1974: sub start_library {
1.159 albertel 1975: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1976: my ($result,$form_tag_start);
1.371 albertel 1977: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1978: &init_problem_globals('library');
1979: $Apache::lonhomework::type='problem';
1980: }
1.159 albertel 1981: if ($target eq 'edit') {
1.343 albertel 1982: ($result,$form_tag_start)=
1983: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1984: 'Edit');
1985: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1986: my $temp=&Apache::edit::insertlist($target,$token);
1987: $result.=$temp;
1988: } elsif ($target eq 'modified') {
1989: $result=$token->[4];
1.340 albertel 1990: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1991: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1992: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1993: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1994: ($result,$form_tag_start)=
1995: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1996: $name);
1.479 raeburn 1997: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 1998: $result.=" \n $form_tag_start".
1.159 albertel 1999: '<input type="hidden" name="submitted" value="yes" />';
2000: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 2001: if ($Apache::lonhomework::type eq 'practice') {
2002: $result.= '<input type="submit" name="resetdata" '.
2003: 'value="'.&mt('New Problem Variation').'" />'.
2004: &practice_problem_header().'<hr />';
2005: }
1.159 albertel 2006: }
2007: return $result;
1.48 albertel 2008: }
2009:
2010: sub end_library {
1.159 albertel 2011: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2012: my $result='';
2013: if ($target eq 'edit') {
2014: $result=&problem_edit_footer();
1.371 albertel 2015: } elsif ($target eq 'web'
2016: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
2017: && $env{'request.state'} eq "construct") {
1.349 albertel 2018: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 2019: }
1.371 albertel 2020: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
2021: &reset_problem_globals('library');
2022: }
1.159 albertel 2023: return $result;
1.197 www 2024: }
2025:
2026: sub start_definetag {
1.326 albertel 2027: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 2028:
2029: my $result;
2030:
2031: my $name = $token->[2]->{'name'};
1.326 albertel 2032: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 2033: if ($target eq 'web') {
2034: if ($name=~/^\//) {
2035: $result=
2036: '<br /><table class="LC_sty_end"><tr><th>'.
2037: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2038: } else {
2039: $result=
2040: '<br /><table class="LC_sty_begin"><tr><th>'.
2041: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2042: }
2043: $skip = &HTML::Entities::encode($skip, '<>&"');
2044: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 2045: }
2046: return $result;
2047: }
2048:
2049: sub end_definetag {
2050: return '';
1.1 albertel 2051: }
2052:
2053: sub start_block {
1.201 albertel 2054: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 2055:
2056: my $result;
1.1 albertel 2057:
1.339 albertel 2058: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2059: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 2060: my $code = $token->[2]->{'condition'};
1.385 albertel 2061: if (defined($code) && $code ne '') {
1.137 albertel 2062: if (!$Apache::lonxml::default_homework_loaded) {
2063: &Apache::lonxml::default_homework_load($safeeval);
2064: }
1.131 albertel 2065: $result = &Apache::run::run($code,$safeeval);
2066: &Apache::lonxml::debug("block :$code: returned :$result:");
2067: } else {
2068: $result='1';
2069: }
2070: if ( ! $result ) {
1.201 albertel 2071: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 2072: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2073: }
2074: $result='';
2075: } elsif ($target eq 'edit') {
2076: $result .=&Apache::edit::tag_start($target,$token);
2077: $result .=&Apache::edit::text_arg('Test Condition:','condition',
2078: $token,40);
2079: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2080: } elsif ($target eq 'modified') {
2081: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2082: $safeeval,'condition');
2083: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 2084: }
1.131 albertel 2085: return $result;
1.1 albertel 2086: }
2087:
2088: sub end_block {
1.167 www 2089: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2090: my $result;
2091: if ($target eq "edit") {
2092: $result.= &Apache::edit::tag_end($target,$token,'');
2093: }
2094: return $result;
2095: }
1.500 foxr 2096: #
2097: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
2098: # ...
2099: # </languageblock>
2100: #
2101: # This declares the intent to provide content that can be rendered in the
2102: # set of languages in the include specificatino but not in the exclude
2103: # specification. If a currently preferred language is in the include list
2104: # the content in the <languageblock>...</languageblock> is rendered
2105: # If the currently preferred language is in the exclude list,
2106: # the content in the <languageblock>..></languageblock is not rendered.
2107: #
2108: # Pathalogical case handling:
2109: # - Include specified, without the preferred language but exclude specified
2110: # also without the preferred langauge results in rendering the block.
2111: # - Exclude specified without include and excluden not containing a
2112: # preferred language renders the block.
2113: # - Include and exclude both specifying the preferred language does not
2114: # render the block.
2115: # - If neither include/exclude is specified, the block gets rendered.
2116: #
2117: # This tag has no effect when target is in {edit, modified}
2118: #
1.167 www 2119: sub start_languageblock {
1.201 albertel 2120: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 2121:
1.500 foxr 2122: my $result = '';
1.167 www 2123:
1.339 albertel 2124: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2125: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 2126: my $include = $token->[2]->{'include'};
2127: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 2128: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 2129:
2130: # This should not even happen, since we should at least have the server language
2131:
2132: if (!$preferred_languages[0]) {
2133: $preferred_languages[0]='en';
2134: }
2135:
2136: # Now loop over all languages in order of preference
2137:
2138: my $render;
1.398 www 2139: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 2140:
2141: # If neither include/nor exlude is present the block is going
2142: # to get rendered.
2143:
1.399 www 2144: my $found=0;
1.500 foxr 2145: $render=1;
2146:
2147: # If include is specified, don't render the block
2148: # unless the preferred language is included in the set.
2149:
1.398 www 2150: if ($include) {
1.500 foxr 2151: $render=0;
1.398 www 2152: foreach my $included_language (split(/\,/,$include)) {
2153: if ($included_language eq $preferred_language) {
1.500 foxr 2154: $render=1;
1.399 www 2155: $found=1;
1.500 foxr 2156: last; # Only need to find the first.
1.398 www 2157: }
2158: }
2159: }
1.500 foxr 2160: # Do we have an exclude argument?
2161: # If so, and one of the languages matches a preferred language
2162: # inhibit rendering the block. Note that in the pathalogical case the
2163: # author has specified a preferred language in both the include and exclude
2164: # attribte exclude is preferred.
2165:
1.398 www 2166: if ($exclude) {
1.500 foxr 2167: $render=1;
1.398 www 2168: foreach my $excluded_language (split(/\,/,$exclude)) {
2169: if ($excluded_language eq $preferred_language) {
1.500 foxr 2170: $render=0;
1.399 www 2171: $found=1;
1.500 foxr 2172: last; # Only need to find the first.
1.398 www 2173: }
2174: }
2175: }
1.500 foxr 2176: if ($found) {
2177: last; # Done on any match of include or exclude.
2178: }
1.398 www 2179: }
1.500 foxr 2180: # If $render not true skip the entire block until </languageblock>
2181: #
2182:
2183: if ( ! $render ) {
1.201 albertel 2184: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
2185: $style);
2186: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2187: }
1.500 foxr 2188: # If $render is true, we've not skipped the contents of the <languageglock>
2189: # and the normal loncapa processing flow will render it as a matter of course.
2190:
1.167 www 2191: } elsif ($target eq 'edit') {
2192: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2193: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 2194: $token,40);
1.211 albertel 2195: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 2196: $token,40);
2197: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2198: } elsif ($target eq 'modified') {
2199: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 2200: $safeeval,'include',
2201: 'exclude');
1.167 www 2202: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2203: }
2204: return $result;
2205: }
2206:
2207: sub end_languageblock {
1.170 www 2208: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2209: my $result;
1.201 albertel 2210: if ($target eq "edit") {
1.170 www 2211: $result.= &Apache::edit::tag_end($target,$token,'');
2212: }
2213: return $result;
2214: }
1.500 foxr 2215: # languagblock specific tags:
2216: {
2217: # For chunks of a resource that has translations, this hash contains
2218: # the translations available indexed by language name.
2219: #
2220:
2221: my %available_texts;
1.170 www 2222:
1.500 foxr 2223: # <translated> starts a block of a resource that has multiple translations.
2224: # See the <lang> tag as well.
2225: # When </translated> is encountered if there is a translation for the
2226: # currently preferred language, that is rendered inthe web/tex/webgrade
2227: # targets. Otherwise, the default text is rendered.
2228: #
2229: # Note that <lang> is only registered for the duration of the
2230: # <translated>...</translated> block
2231: #
2232: # Pathalogical case handling:
2233: # - If there is no <lang> that specifies a 'default' and there is no
2234: # translation that matches a preferred language, nothing is rendered.
2235: # - Nested <translated>...</translated> might be linguistically supported by
2236: # XML due to the stack nature of tag registration(?) however the rendered
2237: # output will be incorrect because there is only one %available_texts
2238: # has and end_translated clears it.
2239: # - Material outside of a <lang>...</lang> block within the
2240: # <translated>...<translated> block won't render either e.g.:
2241: # <translated>
2242: # The following will be in your preferred langauge:
2243: # <lang which='en'>
2244: # This section in english
2245: # </lang>
2246: # <lang which='sgeiso'>
2247: # Hier es ist auf Deutsch.
2248: # </lang>
2249: # <lang which='sfriso'>
2250: # En Francais
2251: # </lang>
2252: # </translated>
2253: #
2254: # The introductory text prior to the first <lang> tag is not rendered.
2255: #
1.397 albertel 2256: sub start_translated {
2257: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2258: &Apache::lonxml::register('Apache::structuretags',('lang'));
2259: undef(%available_texts);
2260: }
2261:
2262: sub end_translated {
2263: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2264: my $result;
2265: #show the translation on viewable targets
2266: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
2267: # or non-viewable targets, if it's embedded in something that
2268: # wants the output
2269: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
2270: && &Apache::lonxml::in_redirection() ) ) {
2271: my @possibilities = keys(%available_texts);
2272: my $which =
2273: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 2274: if ($target eq 'tex') {
2275: $result = &select_hyphenation($which);
2276: }
2277: $result .= $available_texts{$which};
2278: if ($target eq 'tex') {
2279: $result .= &select_metadata_hyphenation(); # Restore original language.
2280: }
1.397 albertel 2281: }
2282: undef(%available_texts);
2283: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
2284: return $result;
2285: }
2286:
1.500 foxr 2287: # <lang [which='language-name'] [other='lang1,lang2...']>
2288: # Specifies that the block contained within it is a translation
2289: # for a specific language specified by the 'which' attribute. The
2290: # 'other' attribute can be used by itself or in conjunction with
2291: # which to specify this tag _may_ be used as a translation for some
2292: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
2293: # specifying that the block provides a translation for US (primary)
2294: # Canadian, Australian and UK Englush.
2295: #
2296: # Comment: this seems a bit silly why not just support a list of languages
2297: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
2298: #
2299: # Effect:
2300: # The material within the <lang>..</lang> block is stored in the
2301: # specified set of $available_texts hash entries, the appropriate one
2302: # is selected at </translated> time.
2303: #
2304: # Pathalogical case handling:
2305: # If a language occurs multiple times within a <translated> block,
2306: # only the last one is rendered e.g.:
2307: #
2308: # <translated>
2309: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
2310: # Red green color blindness is quite common affecting about 7.8% of
2311: # the male population, but onloy about .65% of the female population.
2312: # </lang>
2313: # Red green colour blindness is quite common affecting about 7.8% of
2314: # the male population, but onloy about .65% of the female population.
2315: # <lang which='seniso', other='senisoCA,senisoAU'>
2316: # </translated>
2317: #
2318: # renders the correct spelling of color (colour) for people who have specified
2319: # a preferred language that is one of the British Commonwealth languages
2320: # even though those are also listed as valid selections for the US english
2321: # <lang> block.
2322: #
1.397 albertel 2323: sub start_lang {
2324: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2325: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2326: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2327: &Apache::lonxml::startredirection();
2328: }
2329: return '';
2330: }
2331:
2332: sub end_lang {
2333: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2334: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2335: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2336: my $result = &Apache::lonxml::endredirection();
2337: my $which = &Apache::lonxml::get_param('which',$parstack,
2338: $safeeval);
1.431 raeburn 2339: if ($which=~/\w/) {
2340: $available_texts{$which} = $result;
2341: }
2342: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
2343: $safeeval);
2344: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
2345: if ($language=~/\w/) {
2346: $available_texts{$language} = $result;
2347: }
1.427 bisitz 2348: }
2349:
1.397 albertel 2350: }
2351: return '';
2352: }
1.500 foxr 2353: } # end langauge block specific tags.
2354:
1.397 albertel 2355:
1.170 www 2356: sub start_instructorcomment {
1.201 albertel 2357: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 2358:
2359: my $result;
2360:
1.339 albertel 2361: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2362: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 2363: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 2364: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 2365: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
2366: $parser,$style);
1.170 www 2367: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2368: }
2369: $result='';
2370: } elsif ($target eq 'edit') {
2371: $result .=&Apache::edit::tag_start($target,$token);
2372: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2373: }
2374: return $result;
2375: }
2376:
2377: sub end_instructorcomment {
1.159 albertel 2378: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2379: my $result;
2380: if ($target eq "edit") {
2381: $result.= &Apache::edit::tag_end($target,$token,'');
2382: }
2383: return $result;
1.4 tsai 2384: }
2385:
2386: sub start_while {
1.326 albertel 2387: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2388:
1.160 albertel 2389: my $result;
1.339 albertel 2390: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2391: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2392: my $code = $token->[2]->{'condition'};
1.4 tsai 2393:
1.160 albertel 2394: push( @Apache::structuretags::whileconds, $code);
2395: if (!$Apache::lonxml::default_homework_loaded) {
2396: &Apache::lonxml::default_homework_load($safeeval);
2397: }
2398: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2399: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2400: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2401: push( @Apache::structuretags::whileline, $token->[5]);
2402: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2403: if ( $result ) {
2404: &Apache::lonxml::newparser($parser,\$bodytext);
2405: }
2406: } elsif ($target eq 'edit') {
2407: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2408: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2409: $token,40);
2410: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2411: } elsif ($target eq 'modified') {
2412: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2413: $safeeval,'condition');
2414: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2415: }
1.160 albertel 2416: return $result;
1.4 tsai 2417: }
2418:
2419: sub end_while {
1.159 albertel 2420: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2421: my $result;
2422:
1.339 albertel 2423: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2424: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2425: my $code = pop(@Apache::structuretags::whileconds);
2426: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2427: my $line = pop(@Apache::structuretags::whileline);
2428: my $return = &Apache::run::run($code,$safeeval);
2429: my $starttime=time;
2430: my $error=0;
2431: while ($return) {
2432: if (time-$starttime >
2433: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2434: $return = 0; $error=1; next;
1.161 albertel 2435: }
2436: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2437: if ($target eq 'grade' || $target eq 'answer' ||
2438: $target eq 'analyze') {
2439: # grade/answer/analyze should produce no output but if we
2440: # are redirecting, the redirecter should know what to do
2441: # with the output
2442: if (!$Apache::lonxml::redirection) { undef($result); }
2443: }
1.161 albertel 2444: $return = &Apache::run::run($code,$safeeval);
2445: }
1.512.2.5 raeburn 2446: if ($error) {
2447: &Apache::lonxml::error(
2448: '<pre>'
2449: .&mt('Code ran too long. It ran for more than [_1] seconds.',
2450: $Apache::lonnet::perlvar{'lonScriptTimeout'})
2451: .&mt('This occurred while running <while> on line [_1].',
2452: $line)
2453: .'</pre>');
2454: }
1.160 albertel 2455: } elsif ($target eq "edit") {
2456: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2457: }
1.160 albertel 2458: return $result;
1.1 albertel 2459: }
1.6 tsai 2460:
1.160 albertel 2461: # <randomlist show="1">
1.6 tsai 2462: # <tag1>..</tag1>
2463: # <tag2>..</tag2>
2464: # <tag3>..</tag3>
1.160 albertel 2465: # ...
1.6 tsai 2466: # </randomlist>
2467: sub start_randomlist {
1.326 albertel 2468: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2469: my $result;
1.339 albertel 2470: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2471: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2472: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2473: my $b_parser= HTML::LCParser->new(\$body);
2474: $b_parser->xml_mode(1);
2475: $b_parser->marked_sections(1);
1.159 albertel 2476: my $b_tok;
2477: my @randomlist;
2478: my $list_item;
2479: while($b_tok = $b_parser->get_token() ) {
2480: if($b_tok->[0] eq 'S') { # start tag
2481: # get content of the tag until matching end tag
2482: # get all text upto the matching tag
2483: # and push the content into @randomlist
2484: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2485: $b_parser);
2486: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2487: push(@randomlist,$list_item);
2488: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2489: # $list_item</b>";
2490: }
2491: if($b_tok->[0] eq 'T') { # text
2492: # what to do with text in between tags?
2493: # print "<b>TEXT $b_tok->[1]</b><br />";
2494: }
2495: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2496: # print "<b>END-TAG $b_tok->[1]</b><br />";
2497: # }
2498: }
1.303 albertel 2499: if (@randomlist) {
2500: my @idx_arr = (0 .. $#randomlist);
1.512.2.14! raeburn 2501: if ($env{'form.code_for_randomlist'}) {
! 2502: &Apache::structuretags::shuffle(\@idx_arr,$target);
! 2503: undef($env{'form.code_for_randomlist'});
! 2504: } else {
! 2505: &Apache::structuretags::shuffle(\@idx_arr);
! 2506: }
1.303 albertel 2507: my $bodytext = '';
2508: my $show=$#randomlist;
2509: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2510: $showarg--;
2511: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2512: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2513: my @currlist;
2514: my $part = $Apache::inputtags::part;
2515: if ($part ne '') {
2516: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2517: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2518: if (!(grep(/^\Q$part\E$/,@currlist))) {
2519: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2520: }
2521: } else {
2522: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2523: }
2524: }
2525: }
1.512.2.9 raeburn 2526: for my $i (0 .. $show) {
2527: $bodytext .= "$randomlist[ $idx_arr[$i] ]";
1.303 albertel 2528: }
2529: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2530: }
2531: } elsif ($target eq 'edit' ) {
2532: $result .=&Apache::edit::tag_start($target,$token);
2533: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2534: $token,5);
2535: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2536: } elsif ($target eq 'modified' ) {
2537: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2538: $safeeval,'show');
2539: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2540: }
2541: return $result;
1.7 tsai 2542: }
2543:
2544: sub shuffle {
1.512.2.14! raeburn 2545: my ($a,$target) = @_;
1.7 tsai 2546: my $i;
1.303 albertel 2547: if (ref($a) eq 'ARRAY' && @$a) {
1.512.2.14! raeburn 2548: &Apache::response::pushrandomnumber(undef,$target);
1.159 albertel 2549: for($i=@$a;--$i;) {
2550: my $j=int(&Math::Random::random_uniform() * ($i+1));
2551: next if $i == $j;
2552: @$a[$i,$j] = @$a[$j,$i];
2553: }
1.251 albertel 2554: &Apache::response::poprandomnumber();
1.7 tsai 2555: }
1.6 tsai 2556: }
2557:
2558: sub end_randomlist {
1.159 albertel 2559: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2560: my $result;
2561: if ($target eq 'edit' ) {
2562: $result=&Apache::edit::tag_end($target,$token,
2563: 'End Randomly Parsed Block');
2564: }
2565: return $result;
1.6 tsai 2566: }
2567:
1.283 albertel 2568: sub ordered_show_check {
2569: my $last_part=$Apache::inputtags::partlist[-2];
2570: my $in_order=
2571: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2572: my $in_order_show=1;
2573: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2574: $in_order_show=&Apache::response::check_status($last_part);
2575: }
2576: return $in_order_show;
2577: }
2578:
1.469 www 2579:
2580: sub start_startpartmarker {
2581: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2582: my $result='';
2583: if ($target eq 'edit') {
2584: $result=&Apache::edit::tag_start($target,$token);
2585: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2586: $result.=&Apache::edit::end_table();
2587:
2588: }
2589: return $result;
2590: }
2591:
2592: sub end_startpartmarker {
2593: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2594: my @result;
2595: if ($target eq 'edit') { $result[1]='no'; }
2596: return @result;
2597: }
2598:
2599: sub start_endpartmarker {
2600: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2601: my $result='';
2602: if ($target eq 'edit') {
2603: $result=&Apache::edit::tag_start($target,$token);
2604: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2605: $result.=&Apache::edit::end_table();
2606:
2607: }
2608: return $result;
2609: }
2610:
2611: sub end_endpartmarker {
2612: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2613: my @result;
2614: if ($target eq 'edit') { $result[1]='no'; }
2615: return @result;
2616: }
2617:
2618:
2619:
2620:
2621:
1.11 albertel 2622: sub start_part {
1.326 albertel 2623: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2624: if (!$Apache::lonxml::metamode) {
2625: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2626: # duedates.
2627: }
1.159 albertel 2628: my $result='';
1.386 albertel 2629: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2630: $Apache::inputtags::part=$id;
1.177 albertel 2631: push(@Apache::inputtags::partlist,$id);
1.512.2.10 raeburn 2632: $Apache::inputtags::leniency='';
1.177 albertel 2633: @Apache::inputtags::response=();
1.159 albertel 2634: @Apache::inputtags::previous=();
2635: @Apache::inputtags::previous_version=();
1.405 albertel 2636: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2637: &Apache::response::reset_params();
2638:
1.159 albertel 2639: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2640: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2641: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.512.2.9 raeburn 2642: if ($Apache::lonhomework::type eq 'randomizetry') {
2643: my $rndseed=&setup_rndseed($safeeval,$target);
2644: if (($target eq 'grade') && &Apache::response::submitted()) {
2645: $Apache::lonhomework::results{"resource.$id.rndseed"}=$rndseed;
2646: }
2647: } elsif (($target eq 'grade') && &Apache::response::submitted()) {
2648: $Apache::lonhomework::results{"resource.$id.rndseed"}=$Apache::lonhomework::rawrndseed;
2649: }
1.283 albertel 2650: my $in_order_show=&ordered_show_check();
1.214 albertel 2651: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2652: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2653: &Apache::run::run($expression,$safeeval);
1.159 albertel 2654:
2655: if ($target eq 'meta') {
1.224 www 2656: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2657: return &Apache::response::mandatory_part_meta.
2658: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2659: } elsif ($target eq 'web' || $target eq 'grade' ||
2660: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2661: if ($hidden || !$in_order_show) {
1.326 albertel 2662: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2663: } else {
2664: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2665: push (@Apache::inputtags::status,$status);
2666: my $expression='$external::datestatus="'.$status.'";';
2667: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2668: &Apache::run::run($expression,$safeeval);
1.284 albertel 2669: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2670: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2671: }
1.216 albertel 2672: if (( $status eq 'CLOSED' ) ||
2673: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2674: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2675: ( $status eq 'BANNED') ||
2676: ( $status eq 'UNAVAILABLE') ||
2677: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2678: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2679: $style);
1.159 albertel 2680: if ( $target eq "web" ) {
1.211 albertel 2681: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2682: } elsif ( $target eq 'tex' ) {
1.284 albertel 2683: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2684: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2685: } else {
1.211 albertel 2686: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2687: }
1.159 albertel 2688: }
2689: } else {
2690: if ($target eq 'tex') {
1.284 albertel 2691: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2692: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2693: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2694: } else {
2695: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2696: }
1.195 sakharuk 2697: }
1.159 albertel 2698: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2699: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.512.2.9 raeburn 2700: my @allkeys = split(/,/,$allkeys);
1.222 sakharuk 2701: my $allow_print_points = 0;
2702: foreach my $partial_key (@allkeys) {
1.230 albertel 2703: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2704: if ($1 ne '0') {$allow_print_points=1;}
2705: }
2706: }
1.275 albertel 2707: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2708: if (defined($maxtries) && $maxtries < 0) {
2709: $allow_print_points=0;
2710: }
1.302 albertel 2711: if (lc($env{'course.'.$env{'request.course.id'}.
2712: '.disableexampointprint'}) eq 'yes') {
2713: $allow_print_points=0;
2714: }
1.463 foxr 2715: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2716: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2717:
2718: }
1.233 www 2719: } elsif ($target eq 'web') {
1.479 raeburn 2720: if ($status eq 'CAN_ANSWER') {
2721: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2722: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
2723: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
2724: my $num = scalar(@Apache::inputtags::partlist)-1;
2725: if ($probrandomize eq 'randomizetry') {
2726: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
2727: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2728: } else {
2729: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2730: if ($probrandtries ne $reqtries) {
2731: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2732: }
2733: }
2734: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
2735: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2736: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2737: }
2738: }
1.475 raeburn 2739: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2740: }
2741: }
2742: }
2743: } elsif ($target eq 'edit') {
2744: $result.=&Apache::edit::tag_start($target,$token);
2745: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2746: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2747: ' '.
2748: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2749: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2750: } elsif ($target eq 'modified') {
2751: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2752: $safeeval,'id','display');
1.159 albertel 2753: if ($constructtag) {
1.225 albertel 2754: #limiting ids to only letters numbers, and space
1.224 www 2755: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2756: $result = &Apache::edit::rebuild_tag($token);
2757: }
2758: }
2759: return $result;
1.11 albertel 2760: }
2761:
2762: sub end_part {
1.159 albertel 2763: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2764: &Apache::lonxml::debug("in end_part $target ");
2765: my $status=$Apache::inputtags::status['-1'];
2766: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2767: my $in_order_show=&ordered_show_check();
1.321 albertel 2768: my $result;
2769: if (!$Apache::lonxml::metamode) {
2770: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2771: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2772: }
1.312 albertel 2773: if ($target eq 'grade') {
1.249 albertel 2774: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2775: !$hidden && $in_order_show) {
1.311 foxr 2776: $result.=&Apache::inputtags::grade;
1.249 albertel 2777: } else {
2778: # move any submission data to .hidden
2779: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2780: }
1.283 albertel 2781: } elsif (($target eq 'web' || $target eq 'tex') &&
2782: !$hidden && $in_order_show) {
1.159 albertel 2783: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2784: $target);
1.490 raeburn 2785: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2786: ($env{'form.grade_imsexport'})) {
1.212 albertel 2787: $gradestatus='';
2788: }
1.311 foxr 2789: $result.=$gradestatus;
1.265 sakharuk 2790: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2791: } elsif ($target eq 'edit') {
1.311 foxr 2792: $result.=&Apache::edit::end_table();
1.322 albertel 2793: } elsif ($target eq 'modified') {
2794: $result .= $token->[2];
1.159 albertel 2795: }
2796: pop @Apache::inputtags::status;
2797: $Apache::inputtags::part='';
1.512.2.10 raeburn 2798: $Apache::inputtags::leniency='';
1.295 albertel 2799: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2800: return $result;
1.11 albertel 2801: }
1.1 albertel 2802:
1.25 albertel 2803: sub start_preduedate {
1.326 albertel 2804: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2805: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2806: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2807: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2808: if (!$Apache::lonhomework::scantronmode &&
2809: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2810: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2811: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2812: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2813: }
1.24 albertel 2814: }
1.159 albertel 2815: return '';
1.24 albertel 2816: }
2817:
1.25 albertel 2818: sub end_preduedate {
1.159 albertel 2819: return '';
1.24 albertel 2820: }
2821:
1.369 foxr 2822: # In all the modes where <postanswerdate> text is
2823: # displayable, all we do is eat up the text between the start/stop
2824: # tags if the conditions are not right to display it.
1.25 albertel 2825: sub start_postanswerdate {
1.326 albertel 2826: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2827: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2828: &Apache::lonnet::allowed('pav',
2829: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2830: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2831: $target eq 'tex' ) {
1.300 albertel 2832: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2833: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2834: (($target eq 'tex') && !$pav)) {
1.326 albertel 2835: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2836: }
2837: }
2838: return '';
1.24 albertel 2839: }
2840:
1.25 albertel 2841: sub end_postanswerdate {
1.159 albertel 2842: return '';
1.24 albertel 2843: }
2844:
1.25 albertel 2845: sub start_notsolved {
1.326 albertel 2846: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2847: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2848: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2849: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2850: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2851: if ($gradestatus =~ /^correct/ &&
2852: &Apache::response::show_answer()) {
1.159 albertel 2853: &Apache::lonxml::debug("skipping");
1.326 albertel 2854: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2855: }
1.24 albertel 2856: }
1.159 albertel 2857: return '';
1.24 albertel 2858: }
2859:
1.25 albertel 2860: sub end_notsolved {
1.159 albertel 2861: return '';
1.24 albertel 2862: }
2863:
2864: sub start_solved {
1.326 albertel 2865: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2866: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2867: $target eq 'tex') {
2868: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2869: if ($gradestatus !~ /^correct/ ||
2870: !&Apache::response::show_answer()) {
1.326 albertel 2871: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2872: }
1.24 albertel 2873: }
1.159 albertel 2874: return '';
1.24 albertel 2875: }
2876:
2877: sub end_solved {
1.248 albertel 2878: return '';
2879: }
2880:
2881: sub start_problemtype {
1.326 albertel 2882: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2883: my $result;
1.339 albertel 2884: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2885: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2886: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2887: if (!defined($mode)) { $mode='show'; }
2888: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2889: my $found=0;
2890: foreach my $type (split(',',$for)) {
2891: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2892: }
2893: if ($mode eq 'show' && !$found) {
1.326 albertel 2894: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2895: }
2896: if ($mode eq 'hide' && $found) {
1.326 albertel 2897: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2898: }
2899: } elsif ($target eq 'edit') {
2900: $result .=&Apache::edit::tag_start($target,$token);
2901: $result.=&Apache::edit::select_arg('Mode:','mode',
2902: [['show','Show'],
2903: ['hide','Hide']]
2904: ,$token);
2905: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.512.2.2 raeburn 2906: [ ['exam','Exam/Quiz Problem'],
1.248 albertel 2907: ['survey','Survey'],
1.465 raeburn 2908: ['surveycred','Survey (with credit)'],
2909: ['anonsurvey','Anonymous Survey'],
2910: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2911: ['problem','Homework Problem'],
1.479 raeburn 2912: ['practice','Practice Problem'],
2913: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2914: ,$token);
2915: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2916: } elsif ($target eq 'modified') {
2917: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2918: $safeeval,'mode','for');
2919: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2920: }
2921: return $result;
2922: }
2923:
2924: sub end_problemtype {
1.159 albertel 2925: return '';
1.24 albertel 2926: }
1.34 albertel 2927:
2928: sub start_startouttext {
1.159 albertel 2929: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2930: my @result=(''.'');
2931: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2932:
2933: my $nesting =
2934: &Apache::lonxml::set_state('outtext',
2935: &Apache::lonxml::get_state('outtext')+1);
2936: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2937: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2938: }
1.159 albertel 2939: return (@result);
1.34 albertel 2940: }
1.159 albertel 2941:
1.34 albertel 2942: sub end_startouttext {
1.326 albertel 2943: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2944: my $result='';
2945: my $text='';
2946: if ($target eq 'edit') {
1.424 foxr 2947: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2948: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.512.2.11 raeburn 2949: $result.=&Apache::edit::start_table($token)."<tr><td>".&Apache::loncommon::insert_folding_button()
2950: ." ".&mt('Text Block')."</td>"
1.438 bisitz 2951: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2952: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 2953: .'</span></td>'
1.512.2.12 raeburn 2954: .'<td><span id="math_'.$areaid.'">';
2955: if ($env{'environment.nocodemirror'}) {
2956: $result.=&Apache::lonhtmlcommon::dragmath_button($areaid,1);
2957: } else {
2958: $result.=' ';
2959: }
2960: $result.='</span></td>'
1.474 raeburn 2961: .'<td>'
2962: .&Apache::edit::insertlist($target,$token)
2963: .'</td>'
1.512.2.5 raeburn 2964: .'<td class="LC_edit_problem_latexhelper">' .
1.474 raeburn 2965: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2966: &Apache::edit::end_row().
1.362 albertel 2967: &Apache::edit::start_spanning_row()."\n".
1.255 www 2968: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2969: }
2970: if ($target eq 'modified') {
1.219 albertel 2971: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2972: }
2973: if ($target eq 'tex') {
2974: $result .= '\noindent ';
2975: }
2976: return $result;
1.34 albertel 2977: }
1.159 albertel 2978:
1.34 albertel 2979: sub start_endouttext {
1.159 albertel 2980: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2981: my $result='';
2982: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2983: if ($target eq "modified") {
2984: $result='<endouttext />'.
1.377 albertel 2985: &Apache::edit::handle_insertafter('startouttext');
2986: }
1.404 albertel 2987:
2988: my $nesting =
2989: &Apache::lonxml::set_state('outtext',
2990: &Apache::lonxml::get_state('outtext')-1);
2991: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2992: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2993: &Apache::lonxml::set_state('outtext', 0);
2994: }
1.159 albertel 2995: return $result;
1.34 albertel 2996: }
1.159 albertel 2997:
1.34 albertel 2998: sub end_endouttext {
1.159 albertel 2999: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3000: my @result=('','');
3001: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
3002: return (@result);
1.34 albertel 3003: }
1.159 albertel 3004:
1.45 albertel 3005: sub delete_startouttext {
1.326 albertel 3006: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
3007: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 3008: my $text=$$parser['-1']->get_text("/endouttext");
3009: my $ntoken=$$parser['-1']->get_token();
3010: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
3011: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
3012: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
3013: # they did the last time round
3014: &Apache::lonxml::increasedepth($ntoken);
3015: &Apache::lonxml::decreasedepth($ntoken);
3016: return 1;
1.193 www 3017: }
3018:
3019: sub start_simpleeditbutton {
3020: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3021: my $result='';
1.284 albertel 3022: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 3023: ($target eq 'web') &&
1.330 albertel 3024: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 3025: my $url=$env{'request.noversionuri'};
1.193 www 3026: $url=~s/\?.*$//;
1.367 albertel 3027: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 3028: # Warning makes more sense and is more important on edit screen
1.442 bisitz 3029: # $result='<p class="LC_warning">'
3030: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
3031: # .&Apache::loncommon::help_open_topic('Caching')
3032: # .'</p>';
1.486 www 3033: $result.=&Apache::loncommon::head_subbox(
3034: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 3035: .&Apache::lonhtmlcommon::add_item_funclist(
3036: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
3037: .&mt('Edit').'</a>')
1.486 www 3038: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 3039:
1.193 www 3040: }
3041: return $result;
3042: }
3043:
3044: sub end_simpleeditbutton {
3045: return '';
1.45 albertel 3046: }
1.34 albertel 3047:
1.428 raeburn 3048: sub practice_problem_header {
3049: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
3050: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
3051: '</span>';
3052: }
3053:
1.479 raeburn 3054: sub randomizetry_problem_header {
3055: my ($problemstatus,$reqtries) = @_;
3056: my ($header,$text);
3057: if ($reqtries > 1) {
3058: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
3059: if (($problemstatus eq 'no') ||
3060: ($problemstatus eq 'no_feedback_ever')) {
3061: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3062: } else {
3063: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3064: }
3065: } else {
3066: $header = &mt('New Problem Variation Each Try');
3067: if (($problemstatus eq 'no') ||
3068: ($problemstatus eq 'no_feedback_ever')) {
3069: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
3070:
3071: } else {
3072: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
3073: }
3074: }
3075: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
3076: '<span class="LC_info">'.$text.'</span><hr />';
3077: }
3078:
3079: sub randomizetry_part_header {
3080: my ($problemstatus,$reqtries,$num) = @_;
3081: my ($header,$text);
3082: if ($reqtries eq 'none') {
3083: $header = &mt('No Question Variation');
3084: $text = &mt('For this question there will no new variation after a try.');
3085: } elsif ($reqtries > 1) {
3086: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
3087: if (($problemstatus eq 'no') ||
3088: ($problemstatus eq 'no_feedback_ever')) {
3089: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3090: } else {
3091: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3092: }
3093: } else {
3094: $header = &mt('New Question Variation For Each Try');
3095: if (($problemstatus eq 'no') ||
3096: ($problemstatus eq 'no_feedback_ever')) {
3097: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
3098: } else {
3099: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
3100: }
3101: }
3102: my $output;
3103: if ($num > 1) {
3104: $output .= '<hr />';
3105: }
3106: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
3107: '<span class="LC_info">'.$text.'</span><br /><br />';
3108: return $output;
3109: }
3110:
1.1 albertel 3111: 1;
3112: __END__
1.435 jms 3113:
3114: =pod
3115:
3116: =back
3117:
3118: =cut
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