Annotation of loncom/homework/structuretags.pm, revision 1.535
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.535 ! droeschl 4: # $Id: structuretags.pm,v 1.534 2015/04/10 12:01:28 droeschl 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 $result;;
1.10 albertel 220: }
221:
222: sub end_tex {
1.44 ng 223: return '';
1.9 albertel 224: }
225:
1.400 albertel 226: sub homework_js {
1.531 raeburn 227: my ($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 * $timeout;
271: }
1.400 albertel 272: return &Apache::loncommon::resize_textarea_js().
1.527 golterma 273: &Apache::loncommon::colorfuleditor_js().
1.416 raeburn 274: &setmode_javascript().
1.531 raeburn 275: <<"JS";
1.400 albertel 276: <script type="text/javascript">
1.483 raeburn 277: // <![CDATA[
1.494 raeburn 278: function setSubmittedPart (part,prefix) {
279: if (typeof(prefix) == 'undefined') {
280: this.document.lonhomework.submitted.value="part_"+part;
281: } else {
282: for (var i=0;i<this.document.lonhomework.elements.length;i++) {
283: if (this.document.lonhomework.elements[i].name == prefix+'submitted') {
284: this.document.lonhomework.elements[i].value="part_"+part;
285: }
286: }
287: }
1.400 albertel 288: }
289:
1.532 raeburn 290: function disableAutoComplete (id) {
291: var field = document.getElementById(id);
292: if (field != null && field != undefined){
293: if ('autocomplete' in field) {
294: field.autocomplete = "off";
295: } else {
296: field.setAttribute("autocomplete", "off");
297: }
298: }
299: }
300:
1.400 albertel 301: function image_response_click (which, e) {
302: init_geometry();
303: if (!e) { e = window.event; } //IE
304: var input_element = document.lonhomework.elements[which];
1.401 albertel 305: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 306: var token = token_element.value;
1.401 albertel 307: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 308: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
309: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
310: var click = x+':'+y;
311: input_element.value = click;
1.485 raeburn 312: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
1.400 albertel 313: }
1.520 raeburn 314:
315: var submithandled = 0;
1.521 raeburn 316: var keypresshandled = 0;
1.531 raeburn 317: var postsubmit = '$postsubmit';
1.520 raeburn 318:
1.531 raeburn 319: \$(document).ready(function(){
320: if (postsubmit != 'off') {
321: \$(document).keypress(function(event){
1.521 raeburn 322: var keycode = (event.keyCode ? event.keyCode : event.which);
323: if ((keycode == '13') && (keypresshandled == 0)) {
1.531 raeburn 324: if ( \$( document.activeElement ).hasClass("LC_textline") ) {
1.521 raeburn 325: keypresshandled = 1;
1.531 raeburn 326: var idsArray = \$( document.activeElement ).attr("id").split(/HWVAL_/);
1.521 raeburn 327: if (idsArray.length) {
328: event.preventDefault();
329: var itemsArray = idsArray[1].split(/_/);
330: var buttonId = idsArray[0]+'submit_'+itemsArray[0];
1.531 raeburn 331: \$("#"+buttonId).trigger("click");
1.521 raeburn 332: }
333: }
334: }
335: });
336:
1.531 raeburn 337: \$(document).delegate('form :submit', 'click', function( event ) {
338: if ( \$( this ).hasClass( "LC_hwk_submit" ) ) {
1.520 raeburn 339: var buttonId = this.id;
1.531 raeburn 340: var timeout = $jstimeout;
1.520 raeburn 341: if (submithandled == 0) {
342: submithandled = 1;
1.531 raeburn 343: \$( "#msg_"+buttonId ).css({"display": "inline","background-color": "#87cefa",
1.521 raeburn 344: "color": "black","padding": "2px"}) ;
1.531 raeburn 345: if (( \$(this.form).id == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
1.522 raeburn 346: if (buttonId != "all_submit") {
1.531 raeburn 347: \$( ".LC_status_"+buttonId ).hide();
1.522 raeburn 348: if (( "#"+buttonId+"_pressed" ).length) {
1.531 raeburn 349: \$( "#"+buttonId+"_pressed" ).val( "1" );
1.522 raeburn 350: }
1.520 raeburn 351: }
1.522 raeburn 352: } else {
1.531 raeburn 353: \$( ".LC_status_"+buttonId ).hide();
1.520 raeburn 354: }
1.531 raeburn 355: \$(this.form).submit();
356: \$( ".LC_hwk_submit" ).prop( "disabled", true);
357: \$( ".LC_textline" ).prop( "readonly", "readonly");
1.520 raeburn 358: event.preventDefault();
1.531 raeburn 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: }
1.520 raeburn 376: return true;
377: }
378: }
379: });
1.531 raeburn 380: }
1.520 raeburn 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) {
393: form.problemmode.value = probmode;
394: form.submit();
395: }
1.485 raeburn 396: // ]]>
1.416 raeburn 397: </script>
398: ENDSCRIPT
399: }
400:
1.48 albertel 401: sub page_start {
1.345 albertel 402: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
403: $extra_head)=@_;
1.159 albertel 404: my %found;
1.207 albertel 405: foreach my $taginside (@$tagstack) {
1.159 albertel 406: foreach my $taglookedfor ('html','body','form') {
407: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
408: }
409: }
410:
1.343 albertel 411: if ($target eq 'tex') {
412: return
413: &Apache::londefdef::start_html($target,$token,$tagstack,
414: $parstack,$parser,$safeeval);
415: }
416:
1.474 raeburn 417: $extra_head .= &homework_js().
418: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
419: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
420: my %textarea_args = (
421: dragmath => 'math',
422: );
423: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 424: }
1.478 raeburn 425: my $is_task = ($env{'request.uri'} =~ /\.task$/);
1.528 raeburn 426: my ($needs_upload,$partlist);
1.495 raeburn 427: my ($symb)= &Apache::lonnet::whichuser();
428: my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
1.478 raeburn 429: if ($is_task) {
1.495 raeburn 430: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
1.493 raeburn 431: } else {
432: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.uploadedfiletypes") ne '') {
1.495 raeburn 433: unless ($env{'request.state'} eq 'construct') {
434: my $navmap = Apache::lonnavmaps::navmap->new();
435: if (ref($navmap)) {
436: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 437: my $is_page;
438: if (ref($mapres)) {
439: $is_page = $mapres->is_page();
440: }
441: unless ($is_page) {
1.495 raeburn 442: $needs_upload = 1;
443: }
1.528 raeburn 444: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
445: my $res = $navmap->getBySymb($symb);
446: if (ref($res)) {
447: $partlist = $res->parts();
448: }
449: }
1.495 raeburn 450: }
451: }
1.493 raeburn 452: } else {
453: unless ($env{'request.state'} eq 'construct') {
454: my $navmap = Apache::lonnavmaps::navmap->new();
455: if (ref($navmap)) {
1.495 raeburn 456: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 457: my $is_page;
458: if (ref($mapres)) {
459: $is_page = $mapres->is_page();
460: }
1.528 raeburn 461: if ($is_page) {
462: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
463: my $res = $navmap->getBySymb($symb);
464: if (ref($res)) {
465: $partlist = $res->parts();
466: }
467: }
468: } else {
1.495 raeburn 469: my $res = $navmap->getBySymb($symb);
470: if (ref($res)) {
1.528 raeburn 471: $partlist = $res->parts();
1.495 raeburn 472: if (ref($partlist) eq 'ARRAY') {
473: foreach my $part (@{$partlist}) {
474: my @types = $res->responseType($part);
475: my @ids = $res->responseIds($part);
476: for (my $i=0; $i < scalar(@ids); $i++) {
477: if ($types[$i] eq 'essay') {
478: my $partid = $part.'_'.$ids[$i];
479: if (&Apache::lonnet::EXT("resource.$partid.uploadedfiletypes") ne '') {
480: $needs_upload = 1;
481: last;
482: }
1.493 raeburn 483: }
484: }
485: }
1.495 raeburn 486: }
487: }
1.493 raeburn 488: }
489: }
490: }
491: }
1.495 raeburn 492: if ($needs_upload) {
493: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
494: }
1.478 raeburn 495: }
1.425 raeburn 496:
1.344 albertel 497: my %body_args;
498: if (defined($found{'html'})) {
499: $body_args{'skip_phases'}{'head'}=1;
500: } else {
1.343 albertel 501:
1.345 albertel 502: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 503:
1.379 albertel 504: $extra_head .= &Apache::londefdef::generate_css_links();
505:
1.384 albertel 506: if ($env{'request.state'} eq 'construct') {
1.343 albertel 507: $extra_head.=&Apache::edit::js_change_detection().
508: "<script type=\"text/javascript\">\n".
509: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
510: &Apache::loncommon::browser_and_searcher_javascript().
511: "\n</script>\n";
1.525 raeburn 512: if ($target eq 'edit') {
513: $extra_head .= &Apache::edit::js_update_linknum();
514: }
1.343 albertel 515: }
1.159 albertel 516: }
1.343 albertel 517:
1.446 bisitz 518: my $pageheader = '';
1.344 albertel 519: if (defined($found{'body'})) {
520: $body_args{'skip_phases'}{'body'}=1;
521: } elsif (!defined($found{'body'})
522: && $env{'request.state'} eq 'construct') {
1.343 albertel 523: if ($target eq 'web' || $target eq 'edit') {
1.513 raeburn 524: # Breadcrumbs for Authoring Space
1.450 bisitz 525: &Apache::lonhtmlcommon::clear_breadcrumbs();
526: &Apache::lonhtmlcommon::add_breadcrumb({
1.513 raeburn 527: 'text' => 'Authoring Space',
1.497 raeburn 528: 'href' => &Apache::loncommon::authorspace($env{'request.uri'}),
1.450 bisitz 529: });
1.460 droeschl 530: # breadcrumbs (and tools) will be created
531: # in start_page->bodytag->innerregister
532:
1.450 bisitz 533: # FIXME Where are we?
534: # &Apache::lonhtmlcommon::add_breadcrumb({
535: # 'text' => 'Problem Editing', # 'Problem Testing'
536: # 'href' => '',
537: # });
1.460 droeschl 538: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 539: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 540: }
1.272 albertel 541: } elsif (!defined($found{'body'})) {
1.343 albertel 542: my %add_entries;
1.159 albertel 543: my $background=&Apache::lonxml::get_param('background',$parstack,
544: $safeeval);
1.343 albertel 545: if ($background ne '' ) {
546: $add_entries{'background'} = $background;
547: }
1.344 albertel 548:
1.290 albertel 549: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
550: $safeeval);
1.446 bisitz 551: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 552:
1.446 bisitz 553: $body_args{'bgcolor'} = $bgcolor;
554: # $body_args{'no_title'} = 1;
555: $body_args{'force_register'} = 1;
556: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 557: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 558: $body_args{'only_body'} = 1;
1.518 raeburn 559: } elsif ($target eq 'web') {
560: $body_args{'print_suppress'} = 1;
1.446 bisitz 561: }
1.344 albertel 562: }
1.365 albertel 563: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 564: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
565: \%body_args);
1.446 bisitz 566: $page_start .= $pageheader;
1.462 raeburn 567: if (!defined($found{'body'})
568: && $env{'request.state'} ne 'construct'
569: && ($target eq 'web' || $target eq 'webgrade')) {
570:
571: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
572: if ($symb eq '' && !$publicuser) {
573: $page_start .= '<p class="LC_info">'
574: .&mt('Browsing resource, all submissions are temporary.')
575: .'</p>';
1.457 bisitz 576: }
1.344 albertel 577: }
578:
1.409 albertel 579: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 580: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 581: }
582: my $form_tag_start;
583: if (!defined($found{'form'})) {
1.337 albertel 584: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 585: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 586: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 587: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 588: $form_tag_start.=$uri.'" ';
589: if ($target eq 'edit') {
590: $form_tag_start.=&Apache::edit::form_change_detection();
591: }
1.493 raeburn 592: my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
593: my ($path,$multiresp) =
594: &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
1.495 raeburn 595: if (($is_task) || ($needs_upload)) {
596: $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
1.478 raeburn 597: }
1.368 albertel 598: $form_tag_start.='>'."\n";
1.355 albertel 599:
600: if ($symb =~ /\S/) {
601: $symb=
602: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
603: $form_tag_start.=
1.368 albertel 604: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 605: }
1.159 albertel 606: }
1.528 raeburn 607: return ($page_start,$form_tag_start,$partlist);
1.105 albertel 608: }
609:
1.141 matthew 610: #use Time::HiRes();
1.105 albertel 611: sub get_resource_name {
1.159 albertel 612: my ($parstack,$safeeval)=@_;
1.388 foxr 613: my $name;
1.204 albertel 614: if (defined($Apache::lonhomework::name)) {
1.388 foxr 615: $name = $Apache::lonhomework::name;
616: } else {
617: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 618: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 619: if ($name eq '') {
620: $name=&Apache::lonnet::EXT('resource.title');
621: if ($name eq 'con_lost') { $name = ''; }
622: }
623: if ($name!~/\S+/) {
624: $name=$env{'request.uri'};
625: $name=~s-.*/([^/]+)$-$1-;
626: }
627: # The name has had html tags escaped:
628:
629: $name=~s/</</gs;
630: $name=~s/>/>/gs;
631:
632: $Apache::lonhomework::name=$name;
1.204 albertel 633: }
1.159 albertel 634: return $name;
1.105 albertel 635: }
636:
637: sub setup_rndseed {
1.528 raeburn 638: my ($safeeval,$target,$probpartlist)=@_;
1.367 albertel 639: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 640: my ($questiontype,$set_safespace,$rndseed);
641: if ($target eq 'analyze') {
642: $questiontype = $env{'form.grade_questiontype'};
643: }
644: unless (defined($questiontype)) {
645: $questiontype = $Apache::lonhomework::type;
646: }
1.333 albertel 647: if ($env{'request.state'} eq "construct"
648: || $symb eq ''
649: || $Apache::lonhomework::type eq 'practice'
650: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 651: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 652: ['rndseed']);
1.284 albertel 653: $rndseed=$env{'form.rndseed'};
1.159 albertel 654: if (!$rndseed) {
1.162 albertel 655: $rndseed=$Apache::lonhomework::history{'rndseed'};
656: if (!$rndseed) {
657: $rndseed=time;
658: }
1.284 albertel 659: $env{'form.rndseed'}=$rndseed;
1.162 albertel 660: }
1.479 raeburn 661: if (($env{'request.state'} eq "construct") &&
662: ($Apache::lonhomework::type eq 'randomizetry')) {
663: my $tries = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
664: if ($tries) {
665: $rndseed += $tries;
666: }
1.480 raeburn 667: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 668: }
1.374 albertel 669: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
670: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 671: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 672: srand(time);
673: $rndseed=int(rand(2100000000));
1.284 albertel 674: $env{'form.rndseed'}=$rndseed;
675: delete($env{'form.resetdata'});
676: delete($env{'form.newrandomization'});
1.159 albertel 677: }
1.488 www 678: $rndseed=~s/\,/\:/g;
679: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 680: if (defined($rndseed)) {
681: my ($c1,$c2)=split(/\:/,$rndseed);
682: unless ($c2) { $c2=0; }
683: unless (($c1==int($c1)) && ($c2==int($c2))) {
684: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
685: }
1.187 albertel 686: }
1.247 albertel 687: if ($Apache::lonhomework::history{'resource.CODE'}) {
688: $rndseed=&Apache::lonnet::rndseed();
689: }
1.479 raeburn 690: $set_safespace = 1;
691: } elsif ($questiontype eq 'randomizetry') {
692: if ($target eq 'analyze') {
693: if (defined($env{'form.grade_rndseed'})) {
694: $rndseed = $env{'form.grade_rndseed'};
695: }
696: }
697: unless (($target eq 'analyze') && (defined($rndseed))) {
698: $rndseed=&Apache::lonnet::rndseed();
1.528 raeburn 699: my $partfortries = $Apache::inputtags::part;
700: if (ref($probpartlist) eq 'ARRAY') {
701: if ((@{$probpartlist} == 1) && ($probpartlist->[0] ne $Apache::inputtags::part)) {
702: $partfortries = $probpartlist->[0];
703: }
704: }
705: my $curr_try = $Apache::lonhomework::history{"resource.$partfortries.tries"};
1.479 raeburn 706: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
707: $curr_try ++;
708: }
709: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
710: $rndseed = $1;
711: }
712: if ($curr_try) {
1.528 raeburn 713: my $reqtries = &Apache::lonnet::EXT("resource.$partfortries.randomizeontries");
1.479 raeburn 714: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
715: my $inc = int(($curr_try-1)/$reqtries);
716: $rndseed += $inc;
717: } else {
718: $rndseed += $curr_try;
719: }
720: }
721: }
722: $set_safespace = 1;
1.528 raeburn 723: if ($target eq 'grade') {
724: $Apache::lonhomework::rawrndseed = $rndseed;
725: }
1.479 raeburn 726: }
727: if ($set_safespace) {
728: if ($safeeval) {
729: &Apache::lonxml::debug("Setting rndseed to $rndseed");
730: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
731: }
732: }
733: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
734: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 735: }
736: return $rndseed;
1.105 albertel 737: }
738:
1.268 albertel 739: sub remember_problem_state {
740: return '
1.284 albertel 741: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
742: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
743: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 744: }
745:
1.487 www 746: sub problem_edit_action_button {
747: my ($name,$action,$accesskey,$text,$flag)=@_;
748: my $actionscript="setmode(this.form,'$action')";
749: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
750: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
751: }
752:
1.423 www 753: sub problem_edit_buttons {
1.487 www 754: my ($mode)=@_;
1.535 ! droeschl 755: # Buttons that save
! 756: my $result = '<div style="float:right">';
! 757: if ($mode eq 'editxml') {
! 758: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
! 759: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
! 760: } else {
! 761: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
! 762: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
! 763: }
! 764: $result.="\n</div>\n";
1.487 www 765: # Buttons that do not save
1.535 ! droeschl 766: $result .= '<div>'.
1.487 www 767: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
768: if ($mode eq 'editxml') {
769: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
770: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
771: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
772: } else {
773: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
774: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
775: }
776: $result.="\n</div>";
777: return $result;
1.423 www 778: }
779:
780: sub problem_edit_header {
1.527 golterma 781: my ($mode)=@_;
782: my $return = '<input type="hidden" name="submitted" value="edit" />'.
1.487 www 783: &remember_problem_state('edit').'
1.527 golterma 784: <div class="LC_edit_problem_header">
785: <div class="LC_edit_problem_header_title">
786: '.&mt('Problem Editing').$mode.&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
787: </div><div class="LC_edit_actionbar" id="actionbar">'.
788: '<input type="hidden" name="problemmode" value="saveedit" />'.
789: &problem_edit_buttons();
790:
1.535 ! droeschl 791: $return .= '</div></div>' . &Apache::lonxml::message_location();
1.527 golterma 792: $return .= '<link rel="stylesheet" href="/adm/codemirror/codemirror-combined.css" />
793: <script type="text/javascript" src="/adm/codemirror/codemirror-compressed-colorful.js"></script>';
794:
795: $return .= '<script type="text/javascript" src="/adm/jQuery/addons/jquery-scrolltofixed.js"></script>
796: <script type="text/javascript">
797: // unless internet explorer
798: if (!(window.navigator.appName == "Microsoft Internet Explorer" && (document.documentMode || document.compatMode))){
799: $(document).ready(
800: function() {
801: $(\'.LC_edit_actionbar\').scrollToFixed(
802: {
803: fixed: function(){
1.535 ! droeschl 804: //$(this).find(\'.LC_edit_actionbar\').css(\'height\', \'31px\');
! 805: $(this).find(\'.LC_edit_actionbar\');
1.527 golterma 806: }
807: }
808: );
809: }
810: );
811: }
812: </script>
813: <table id="LC_edit_problem_colorful" border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
814: return $return;
1.105 albertel 815: }
816:
817: sub problem_edit_footer {
1.527 golterma 818: my $resource = $env{'request.ambiguous'};
1.412 albertel 819: return '</td></tr></table><br />
820: <div class="LC_edit_problem_footer">
1.453 bisitz 821: <hr />'.
1.423 www 822: &problem_edit_buttons().'
1.459 bisitz 823: <hr style="clear:both;" />
1.527 golterma 824: <script type="text/javascript">
825: restoreState("'.$resource.'");
826: restoreScrollPosition("'.$resource.'");
827: </script>
1.412 albertel 828: </div>
829: '.
1.342 albertel 830: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 831: }
832:
1.235 albertel 833: sub option {
834: my ($value,$name) = @_;
835: my $result ="<option value='".$value."' ";
1.284 albertel 836: if ($env{'form.'.$name} eq $value) {
1.235 albertel 837: $result.=" selected='on' ";
838: }
839: $result.='>';
840: return $result;
841: }
842:
1.105 albertel 843: sub problem_web_to_edit_header {
1.159 albertel 844: my ($rndseed)=@_;
1.406 albertel 845: my $result .= '<div class="LC_edit_problem_header">';
846:
847: if (!$Apache::lonhomework::parsing_a_task) {
848: $result .=
849: '<div class="LC_edit_problem_header_title">'.
850: &mt('Problem Testing').
851: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
852: '</div>';
853: } else {
854: $result .=
855: '<div class="LC_edit_problem_header_title">'.
856: &mt('Task Testing').
857: '</div>';
858: }
859:
1.315 albertel 860: my $show_all_foils_text =
861: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 862: &mt('Show All Instances')
863: : &mt('Show All Foils');
1.315 albertel 864:
1.452 bisitz 865: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
866: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 867: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 868: $show_all.= ' /> '.$show_all_foils_text
869: .'</label></span>';
1.406 albertel 870:
871:
1.384 albertel 872:
1.406 albertel 873: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 874: if (!$Apache::lonhomework::parsing_a_task) {
875: $result.="
1.406 albertel 876: <div class='LC_edit_problem_header_row1'>
877: <span class=\"LC_nobreak\">
1.405 albertel 878: ".&mt("Problem Status:")."
1.235 albertel 879: <select name='problemstate'>
1.270 albertel 880: <option value=''></option>
1.235 albertel 881: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
882: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
883: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
884: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
885: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
886: </select>
1.406 albertel 887: </span>
888: <span class=\"LC_nobreak\">
1.405 albertel 889: ".&mt("Problem Type:")."
1.235 albertel 890: <select name='problemtype'>
1.270 albertel 891: <option value=''></option>
1.509 bisitz 892: ".&option('exam' ,'problemtype').&mt("Bubblesheet Exam Problem")."</option>
1.428 raeburn 893: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 894: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 895: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
896: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
897: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 898: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 899: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 900: </select>
1.406 albertel 901: </span>
902: $show_all
903: </div>
904: <div class='LC_edit_problem_header_row2'>
905: <span class=\"LC_nobreak\">
1.405 albertel 906: ".&mt("Feedback Mode:")."
1.235 albertel 907: <select name='problemstatus'>
908: <option value=''></option>
1.242 albertel 909: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.517 bisitz 910: ".&option('no', 'problemstatus').&mt("Don't Show Incorrect/Correct Feedback")."</option>
1.405 albertel 911: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 912: </select>
1.406 albertel 913: </span>
914: ";
915:
1.376 albertel 916: } elsif ($Apache::lonhomework::parsing_a_task) {
917: $result.="
1.406 albertel 918: <div class='LC_edit_problem_header_row1'>
919: <span class=\"LC_nobreak\">
1.405 albertel 920: ".&mt("Problem Status:")."
1.376 albertel 921: <select name='problemstate'>
922: <option value=''></option>
923: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
924: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
925: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
926: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
927: </select>
1.406 albertel 928: </span>
929: $show_all
930: ";
931: }
932: $result.='
933: <span class="LC_nobreak">
934: '.&mt('Apply style file: ').'
935: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
936: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
937: </span>
1.422 www 938: </div>
939: <div class="LC_edit_problem_header_row1">'.
940: &Apache::lonxml::renderingoptions().'
1.406 albertel 941: </div>
942: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
943: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
944: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
945: </div>
1.453 bisitz 946: <hr />
1.406 albertel 947: <div class="LC_edit_problem_header_randomize_row">
948: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
949: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 950: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 951: $rndseed.'"
952: onchange="javascript:document.lonhomework.changerandseed.click()" />';
953:
954: if (!$Apache::lonhomework::parsing_a_task) {
955: my $numtoanalyze=$env{'form.numtoanalyze'};
956: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 957: $result .= '<span class="LC_nobreak">'.
958: &mt('[_1] for [_2] versions.',
1.416 raeburn 959: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 960: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
961: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 962: $numtoanalyze.'" size="5" />').
963: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
964: '</span>';
965:
1.313 albertel 966: }
1.406 albertel 967:
968: $result.='
969: </div>
1.453 bisitz 970: <hr />
1.447 bisitz 971: <div>';
1.416 raeburn 972: $result.='<input type="hidden" name="problemmode" value="view" />';
973: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
974: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
975: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
976: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 977: $result.='
978: </div>
1.453 bisitz 979: <hr />
1.409 albertel 980: '.&Apache::lonxml::message_location().'
1.406 albertel 981: </div>';
1.159 albertel 982: return $result;
1.48 albertel 983: }
984:
1.65 albertel 985: sub initialize_storage {
1.357 albertel 986: my ($given_symb) = @_;
1.353 albertel 987: undef(%Apache::lonhomework::results);
988: undef(%Apache::lonhomework::history);
1.357 albertel 989: my ($symb,$courseid,$domain,$name) =
1.367 albertel 990: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 991:
992: # anonymous users (CODEd exams) have no data
993: if ($name eq 'anonymous'
994: && !defined($domain)) {
995: return;
996: }
997:
1.333 albertel 998: if ($env{'request.state'} eq 'construct'
999: || $symb eq ''
1000: || $Apache::lonhomework::type eq 'practice') {
1001:
1002: my $namespace = $symb || $env{'request.uri'};
1003: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 1004: ($env{'form.resetdata'} eq &mt('New Problem Variation')
1005: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 1006: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1007: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
1008: &Apache::lonxml::debug("Attempt reset");
1009: }
1.159 albertel 1010: %Apache::lonhomework::history=
1.333 albertel 1011: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.526 raeburn 1012: my ($temp)=keys(%Apache::lonhomework::history) ;
1.159 albertel 1013: &Apache::lonxml::debug("Return message of $temp");
1014: } else {
1015: %Apache::lonhomework::history=
1016: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1017: }
1.353 albertel 1018:
1.159 albertel 1019: #ignore error conditions
1.526 raeburn 1020: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1021: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 1022: }
1023:
1.435 jms 1024: =pod
1025:
1026: =item finalize_storage()
1027:
1.524 raeburn 1028: Stores away the result hash to a student's environment;
1.523 raeburn 1029: checks form.grade_ for specific values, otherwise stores
1030: to the running user's environment.
1.524 raeburn 1031:
1032: &check_correctness_changes() is called in two circumstances
1033: in which the results hash is to be stored permanently, for
1034: grading triggered by a student's submission, where feedback on
1035: correctness is to be provided to the student.
1036:
1037: 1. Immediately prior to storing the results hash
1038:
1039: To handle the case where a student's submission (and award) were
1040: stored after history was retrieved in &initialize_storage(), e.g.,
1041: if a student submitted answers in quick succession (e.g., from
1042: multiple tabs). &Apache::inputtags::hidealldata() is called for
1043: any parts with out-of-order storage (i.e., correct then incorrect,
1044: where awarded >= 1 when correct).
1045:
1046: 2. Immediately after storing the results hash
1047:
1048: To handle the case where lond on the student's homeserver returns
1049: delay:N -- where N is the number of transactions between the last
1050: retrieved in &initialize_storage() and the last stored immediately
1051: before permanent storage of the current transaction via
1052: lond::store_handler(). &Apache::grades::makehidden() is called
1053: for any parts with out-of-order storage (i.e., correct then incorrect,
1054: where awarded >= 1 when correct).
1055:
1056: Will call &store_aggregates() to increment totals for attempts,
1057: students, and corrects, if running user has student role.
1058:
1.435 jms 1059: =cut
1060:
1061:
1.65 albertel 1062: sub finalize_storage {
1.357 albertel 1063: my ($given_symb) = @_;
1.159 albertel 1064: my $result;
1.289 albertel 1065: if (%Apache::lonhomework::results) {
1.323 albertel 1066: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
1067: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 1068: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1069: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 1070: if ($env{'request.state'} eq 'construct'
1071: || $symb eq ''
1072: || $Apache::lonhomework::type eq 'practice') {
1073: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 1074: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 1075: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 1076: $namespace,'',$domain,$name);
1.159 albertel 1077: &Apache::lonxml::debug('Construct Store return message:'.$result);
1078: } else {
1.524 raeburn 1079: my ($laststore,$checkedparts,@parts,%postcorrect);
1080: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1081: (!$Apache::lonhomework::scantronmode) && (!defined($env{'form.grade_symb'})) &&
1082: (!defined($env{'form.grade_courseid'}))) {
1083: if ($Apache::lonhomework::history{'version'}) {
1084: $laststore = $Apache::lonhomework::history{'version'}.'='.
1085: $Apache::lonhomework::history{'timestamp'};
1086: } else {
1087: $laststore = '0=0';
1088: }
1089: my %record = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1090: if ($record{'version'}) {
1091: my ($newversion,$oldversion,$oldtimestamp);
1092: if ($Apache::lonhomework::history{'version'}) {
1093: $oldversion = $Apache::lonhomework::history{'version'};
1094: $oldtimestamp = $Apache::lonhomework::history{'timestamp'};
1095: } else {
1096: $oldversion = 0;
1097: $oldtimestamp = 0;
1098: }
1099: if ($record{'version'} > $oldversion) {
1100: if ($record{'timestamp'} >= $oldtimestamp) {
1101: $laststore = $record{'version'}.'='.$record{'timestamp'};
1102: $newversion = $record{'version'} + 1;
1103: $checkedparts = 1;
1104: foreach my $key (keys(%Apache::lonhomework::results)) {
1105: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1106: my $part = $1;
1107: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1108: push(@parts,$part);
1109: }
1110: }
1111: }
1112: if (@parts) {
1113: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1114: \%record,\@parts,$newversion,
1115: $oldversion);
1116: if (@parts_to_hide) {
1117: foreach my $part (@parts_to_hide) {
1118: $postcorrect{$part} = 1;
1119: &Apache::inputtags::hidealldata($part);
1120: }
1121: }
1122: }
1123: }
1124: }
1125: }
1126: }
1.159 albertel 1127: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
1.524 raeburn 1128: $symb,$courseid,$domain,$name,$laststore);
1129: if ($result =~ /^delay\:(\d+)$/) {
1130: my $numtrans = $1;
1131: my ($oldversion) = split(/=/,$laststore);
1132: if ($numtrans) {
1133: my $newversion = $oldversion + 1 + $numtrans;
1134: my @possparts;
1135: if ($checkedparts) {
1136: foreach my $part (@parts) {
1137: unless ($postcorrect{$part}) {
1138: push(@possparts,$part);
1139: }
1140: }
1141: } else {
1142: foreach my $key (keys(%Apache::lonhomework::results)) {
1143: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1144: my $part = $1;
1145: unless ($postcorrect{$part}) {
1146: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1147: push(@possparts,$part);
1148: }
1149: }
1150: }
1151: }
1152: }
1153: if (@possparts) {
1154: my %newrecord = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1155: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1156: \%newrecord,\@possparts,$newversion,
1157: $oldversion);
1158: if (@parts_to_hide) {
1159: my $partslist = join(',',@parts_to_hide);
1160: &Apache::grades::makehidden($newversion,$partslist,\%newrecord,$symb,$domain,$name,1);
1161: }
1162: }
1163: }
1164: }
1.159 albertel 1165: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 1166: &store_aggregates($symb,$courseid);
1.159 albertel 1167: }
1.323 albertel 1168: } else {
1169: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 1170: }
1.159 albertel 1171: return $result;
1.65 albertel 1172: }
1173:
1.435 jms 1174: =pod
1175:
1.524 raeburn 1176: =item check_correctness_changes()
1177:
1178: For all parts for which current results contain a solved status
1179: of "incorrect_attempted", check if there was a transaction in which
1180: solved was set to "correct_by_student" in the time since the last
1181: transaction (retrieved when &initialize_storage() was called i.e.,
1182: when &start_problem() was called), unless:
1183: (a) questiontype parameter is set to survey or anonymous survey (+/- credit)
1184: (b) problemstatus is set to no or no_feedback_ever
1185: If such a transaction exists, and did not occur after "reset status"
1186: by a user with grading privileges, then the current transaction is an
1187: example of an out-of-order transaction (i.e., incorrect occurring after
1188: correct). Accordingly, the current transaction should be hidden.
1189:
1190: =cut
1191:
1192:
1193: sub check_correctness_changes {
1194: my ($symb,$courseid,$domain,$name,$record,$parts,$newversion,$oldversion) = @_;
1195: my @parts_to_hide;
1196: unless ((ref($record) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
1197: return @parts_to_hide;
1198: }
1199: if (@{$parts}) {
1200: my $usec;
1201: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1202: ($env{'request.course.id'} eq $courseid)) {
1203: $usec = $env{'request.course.sec'};
1204: } else {
1205: $usec = &Apache::lonnet::getsection($domain,$name,$courseid);
1206: }
1207: foreach my $id (@{$parts}) {
1208: next if (($Apache::lonhomework::results{'resource.'.$id.'.type'} =~ /survey/) ||
1209: (&Apache::lonnet::EXT("resource.$id.problemstatus",$symb,
1210: $domain,$name,$usec,undef,$courseid) =~ /^no/));
1211: my $reset;
1212: for (my $i=$newversion-1; $i>=$oldversion; $i--) {
1213: if (($record->{$i.':resource.'.$id.'.regrader'}) &&
1214: ($record->{$i.':resource.'.$id.'.tries'} eq '') &&
1215: ($record->{$i.':resource.'.$id.'.award'} eq '')) {
1216: $reset = 1;
1217: } elsif (($record->{$i.":resource.$id.solved"} eq 'correct_by_student') &&
1218: ($record->{$i.":resource.$id.awarded"} >= 1)) {
1219: unless ($reset) {
1220: push(@parts_to_hide,$id);
1221: last;
1222: }
1223: }
1224: }
1225: }
1226: }
1227: return @parts_to_hide;
1228: }
1229:
1230: =pod
1231:
1.435 jms 1232: item store_aggregates()
1233:
1234: Sends hash of values to be incremented in nohist_resourcetracker.db
1235: for the course. Increments total number of attempts, unique students
1236: and corrects for each part for an instance of a problem, as appropriate.
1237:
1238: =cut
1239:
1.285 raeburn 1240: sub store_aggregates {
1241: my ($symb,$courseid) = @_;
1.479 raeburn 1242: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 1243: my @parts;
1.288 albertel 1244: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
1245: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 1246: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 1247: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 1248: push(@parts, $1);
1.285 raeburn 1249: }
1250: }
1.286 albertel 1251: foreach my $part (@parts) {
1.470 raeburn 1252: if ($env{'request.role'} =~/^st/) {
1253: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
1254: eq 'APPROX_ANS' ||
1255: $Apache::lonhomework::results{'resource.'.$part.'.award'}
1256: eq 'EXACT_ANS') {
1257: $aggregate{$symb."\0".$part."\0correct"} = 1;
1258: }
1259: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1260: $aggregate{$symb."\0".$part."\0users"} = 1;
1261: } else {
1262: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1263: if ($last_reset) {
1264: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1265: $aggregate{$symb."\0".$part."\0users"} = 1;
1266: }
1267: }
1268: }
1269: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 1270: }
1.470 raeburn 1271: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 1272: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
1273: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
1274: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
1275: $randtrycounter{$symb."\0".$part} = 1;
1276: } else {
1277: $anoncounter{$symb."\0".$part} = 1;
1278: }
1.470 raeburn 1279: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
1280: if ($needsrelease) {
1281: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
1282: if ($curr_required eq '') {
1.471 raeburn 1283: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1284: } else {
1285: my ($currmajor,$currminor) = split(/\./,$curr_required);
1286: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
1287: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 1288: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1289: }
1.292 raeburn 1290: }
1291: }
1.285 raeburn 1292: }
1293: }
1.526 raeburn 1294: if (keys(%aggregate) > 0) {
1.289 albertel 1295: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 1296: $cdomain,$cname);
1297: }
1.472 raeburn 1298: if (keys(%anoncounter) > 0) {
1.481 raeburn 1299: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
1300: $cdomain,$cname);
1.472 raeburn 1301: }
1.479 raeburn 1302: if (keys(%randtrycounter) > 0) {
1.481 raeburn 1303: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
1304: $cdomain,$cname);
1.479 raeburn 1305: }
1.292 raeburn 1306: }
1.289 albertel 1307:
1.65 albertel 1308: sub checkout_msg {
1.211 albertel 1309: my %lt=&Apache::lonlocal::texthash(
1310: 'resource'=>'The resource needs to be checked out',
1311: '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.',
1312: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
1.509 bisitz 1313: 'checkout'=>'Check out Bubblesheet Exam for Viewing',
1314: 'checkout?'=>'Check out Bubblesheet Exam?');
1.352 albertel 1315: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 1316: return (<<ENDCHECKOUT);
1.211 albertel 1317: <h2>$lt{'resource'}</h2>
1318: <p>$lt{'id_expln'}</p>
1.449 bisitz 1319: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 1320: <form name="checkout" method="post" action="$uri">
1.91 albertel 1321: <input type="hidden" name="doescheckout" value="yes" />
1.514 bisitz 1322: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onclick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 1323: </form>
1324: ENDCHECKOUT
1325: }
1326:
1.252 albertel 1327: sub firstaccess_msg {
1.253 albertel 1328: my ($time,$symb)=@_;
1.414 albertel 1329: my $result;
1330: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1331: if ($interval[1] eq 'map') {
1332: my ($map)=&Apache::lonnet::decode_symb($symb);
1333: my $foldertitle=&Apache::lonnet::gettitle($map);
1334:
1335: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 1336: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
1337: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1338: ,$foldertitle,$time)."</p>";
1.414 albertel 1339: } elsif ($interval[1] eq 'course') {
1340: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 1341: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 1342: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 1343: ,$course,$time)."</p>";
1.414 albertel 1344: } else {
1345: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1346: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1347: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1348: ,$title,$time)."</p>";
1.414 albertel 1349: }
1.352 albertel 1350: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1351: my $buttontext = &mt('Show Resource');
1352: my $timertext = &mt('Start Timer?');
1.414 albertel 1353: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1354: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1355: <input type="hidden" name="markaccess" value="yes" />
1.514 bisitz 1356: <input type="button" name="accessbutton" value="$buttontext" onclick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1357: </form>
1358: ENDCHECKOUT
1.414 albertel 1359: return $result;
1.252 albertel 1360: }
1361:
1.204 albertel 1362: sub init_problem_globals {
1363: my ($type)=@_;
1364: #initialize globals
1.308 foxr 1365: # For problems, we start out in part 0 (outside a <part> tag).
1366: # and part 0 is used to describe the main body of the <problem>
1367: #
1.204 albertel 1368: if ($type eq 'problem') {
1369: $Apache::inputtags::part='0';
1370: @Apache::inputtags::partlist=('0');
1.405 albertel 1371: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1372: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1373:
1.266 albertel 1374: } elsif ($type eq 'library') {
1.204 albertel 1375: $Apache::inputtags::part='';
1376: @Apache::inputtags::partlist=();
1.405 albertel 1377: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1378: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1379:
1.304 albertel 1380: } elsif ($type eq 'Task') {
1381: $Apache::inputtags::part='0';
1382: @Apache::inputtags::partlist=('0');
1.405 albertel 1383: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1384: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1385: }
1.477 www 1386: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1387: @Apache::inputtags::responselist = ();
1388: @Apache::inputtags::importlist = ();
1389: @Apache::inputtags::previous=();
1390: @Apache::inputtags::previous_version=();
1391: $Apache::structuretags::printanswer='No';
1392: @Apache::structuretags::whileconds=();
1393: @Apache::structuretags::whilebody=();
1394: @Apache::structuretags::whileline=();
1395: $Apache::lonhomework::scantronmode=0;
1396: undef($Apache::lonhomework::name);
1.358 albertel 1397: undef($Apache::lonhomework::default_type);
1398: undef($Apache::lonhomework::type);
1.204 albertel 1399: }
1400:
1401: sub reset_problem_globals {
1402: my ($type)=@_;
1403: undef(%Apache::lonhomework::history);
1404: undef(%Apache::lonhomework::results);
1405: undef($Apache::inputtags::part);
1.498 raeburn 1406: if ($type eq 'Task') {
1407: undef($Apache::inputtags::slot_name);
1.528 raeburn 1408: } elsif ($type eq 'problem') {
1409: undef($Apache::lonhomework::rawrndseed);
1.498 raeburn 1410: }
1.208 albertel 1411: #don't undef this, lonhomework.pm takes care of this, we use this to
1412: #detect if we try to do 2 problems in one file
1413: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1414: undef($Apache::lonhomework::name);
1.358 albertel 1415: undef($Apache::lonhomework::default_type);
1416: undef($Apache::lonhomework::type);
1417: undef($Apache::lonhomework::scantronmode);
1418: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1419: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1420: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1421: }
1422:
1.241 albertel 1423: sub set_problem_state {
1.240 albertel 1424: my ($part)=@_;
1.284 albertel 1425: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1426: $Apache::lonhomework::history{"resource.$part.solved"}=
1427: 'correct_by_student';
1428: }
1429: }
1430:
1.241 albertel 1431: sub get_problem_status {
1432: my ($part)=@_;
1.267 albertel 1433: my $problem_status;
1.284 albertel 1434: if ($env{'request.state'} eq 'construct' &&
1435: defined($env{'form.problemstatus'})) {
1436: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1437: } else {
1438: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1439: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1440: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1441: }
1442: return $problem_status;
1443: }
1444:
1.9 albertel 1445: sub start_problem {
1.326 albertel 1446: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1447:
1.311 foxr 1448: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1449: if (!$Apache::lonxml::metamode) {
1450: &Apache::lonxml::startredirection();
1451: }
1.311 foxr 1452:
1.308 foxr 1453: # Problems don't nest and we don't allow more than one <problem> in
1454: # a .problem file.
1455: #
1.184 albertel 1456: if ( $Apache::inputtags::part ne '' ||
1457: $Apache::lonhomework::parsing_a_problem) {
1458: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1459: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1460: return '';
1461: }
1.184 albertel 1462:
1463: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1464: &init_problem_globals('problem');
1.166 albertel 1465:
1.284 albertel 1466: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1467: $Apache::lonhomework::scantronmode=1;
1468: }
1.161 albertel 1469:
1.159 albertel 1470: if ($target ne 'analyze') {
1.415 raeburn 1471: my $type = &Apache::lonnet::EXT('resource.0.type');
1472: $Apache::lonhomework::type=$type;
1.284 albertel 1473: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1474: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1475: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1476: }
1.332 albertel 1477: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1478: }
1.164 albertel 1479: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1480: my $uri=$env{'request.uri'};
1.159 albertel 1481: if ($uri=~/\.(\w+)$/) {
1482: $Apache::lonhomework::type=$1;
1483: &Apache::lonxml::debug("Using type of $1");
1484: } else {
1485: $Apache::lonhomework::type='problem';
1486: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1487: }
1.87 albertel 1488: }
1.301 albertel 1489: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1490:
1.363 albertel 1491: &initialize_storage();
1.389 albertel 1492: if ($target ne 'analyze'
1493: && $env{'request.state'} eq 'construct') {
1494: &set_problem_state('0');
1495: }
1496:
1.366 albertel 1497: if ($target eq 'web') {
1498: &Apache::lonxml::debug(" grading history ");
1499: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1500: }
1.363 albertel 1501:
1.159 albertel 1502: #added vars to the scripting enviroment
1.213 albertel 1503: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1504: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1505: &Apache::run::run($expression,$safeeval);
1.159 albertel 1506: my $status;
1507: my $accessmsg;
1.508 raeburn 1508: my $resource_due;
1.159 albertel 1509:
1.343 albertel 1510: my $name= &get_resource_name($parstack,$safeeval);
1.528 raeburn 1511: my ($result,$form_tag_start,$slot_name,$slot,$probpartlist);
1.506 raeburn 1512:
1513: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1514: $target eq 'tex') {
1515: if ($env{'form.markaccess'}) {
1516: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1.519 raeburn 1517: &Apache::lonnet::set_first_access($interval[1],$interval[0]);
1.506 raeburn 1518: }
1519:
1520: ($status,$accessmsg,$slot_name,$slot) =
1521: &Apache::lonhomework::check_slot_access('0','problem');
1522: push (@Apache::inputtags::status,$status);
1523: }
1524:
1.354 albertel 1525: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1526: || $target eq 'edit') {
1.528 raeburn 1527: ($result,$form_tag_start,$probpartlist) =
1.350 albertel 1528: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1529: $name);
1.528 raeburn 1530: } elsif (($target eq 'grade') && ($Apache::lonhomework::type eq 'randomizetry')) {
1531: my ($symb)= &Apache::lonnet::whichuser();
1532: my $navmap = Apache::lonnavmaps::navmap->new();
1533: if (ref($navmap)) {
1534: my $res = $navmap->getBySymb($symb);
1535: if (ref($res)) {
1536: $probpartlist = $res->parts();
1537: }
1538: }
1.350 albertel 1539: }
1540:
1.284 albertel 1541: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1542:
1.479 raeburn 1543: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1544: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1545: $target eq 'tex') {
1.479 raeburn 1546:
1.159 albertel 1547: #handle rand seed in construction space
1.528 raeburn 1548: my $rndseed=&setup_rndseed($safeeval,$target,$probpartlist);
1549: if (($target eq 'grade') && &Apache::response::submitted()) {
1550: if ($Apache::lonhomework::type eq 'randomizetry') {
1.529 raeburn 1551: $Apache::lonhomework::results{'resource.0.rndseed'}=$rndseed;
1.528 raeburn 1552: } else {
1553: my @parts;
1554: if (ref($probpartlist) eq 'ARRAY') {
1555: @parts = @{$probpartlist};
1556: }
1557: unless (@parts) {
1.529 raeburn 1558: $Apache::lonhomework::results{'resource.0.rndseed'}=$Apache::lonhomework::rawrndseed;
1.528 raeburn 1559: }
1560: }
1561: }
1.367 albertel 1562: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 1563:
1.333 albertel 1564: if ($env{'request.state'} ne "construct" &&
1565: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1566: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1567: $rndseed.'" />'.
1568: '<input type="submit" name="resetdata"
1569: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1570: if (exists($env{'form.username'})) {
1571: $form_tag_start.=
1.164 albertel 1572: '<input type="hidden" name="username"
1.284 albertel 1573: value="'.$env{'form.username'}.'" />';
1.334 albertel 1574: }
1.462 raeburn 1575: if ($env{'request.role.adv'}) {
1576: $form_tag_start.= ' <label class="LC_nobreak">'
1577: .'<input type="checkbox" name="showallfoils"';
1578: if (defined($env{'form.showallfoils'})) {
1579: $form_tag_start.=' checked="checked"';
1580: }
1581: $form_tag_start.= ' /> '
1582: .&mt('Show All Foils')
1583: .'</label>';
1584: }
1.417 www 1585: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1586: $form_tag_start.=&practice_problem_header();
1.417 www 1587: }
1.462 raeburn 1588: $form_tag_start.='<hr />';
1.479 raeburn 1589: } elsif (($env{'request.state'} ne "construct") &&
1590: ($Apache::lonhomework::type eq 'randomizetry') &&
1591: ($status eq 'CAN_ANSWER')) {
1592: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1593: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1594: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1595: }
1.324 albertel 1596:
1.159 albertel 1597: my $expression='$external::datestatus="'.$status.'";';
1598: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1599: &Apache::run::run($expression,$safeeval);
1600: &Apache::lonxml::debug("Got $status");
1.324 albertel 1601:
1.159 albertel 1602: if (( $status eq 'CLOSED' ) ||
1603: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1604: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1605: ( $status eq 'BANNED') ||
1.216 albertel 1606: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1607: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1608: ( $status eq 'NOTRESERVABLE') ||
1609: ( $status eq 'RESERVABLE') ||
1610: ( $status eq 'RESERVABLE_LATER') ||
1.216 albertel 1611: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1612: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1613: $style);
1.159 albertel 1614: if ( $target eq "web" ) {
1.343 albertel 1615: my $msg;
1.159 albertel 1616: if ($status eq 'UNAVAILABLE') {
1.504 golterma 1617: $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1.441 raeburn 1618: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.504 golterma 1619: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1.499 raeburn 1620: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1621: ($status eq 'NOTRESERVABLE')) {
1.504 golterma 1622: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1.253 albertel 1623: } elsif ($status ne 'NOT_YET_VIEWED') {
1.504 golterma 1624: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1.499 raeburn 1625: }
1.216 albertel 1626: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1627: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1628: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1629: $msg.=&checkout_msg();
1.252 albertel 1630: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1631: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1632: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1633: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.499 raeburn 1634: } elsif ($status eq 'RESERVABLE') {
1635: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1636: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1637: '<br />'.
1638: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1639: } elsif ($status eq 'RESERVABLE_LATER') {
1640: $msg.=&mt('Window to make a reservation will open [_1].',
1641: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1642: } elsif ($status eq 'NOTRESERVABLE') {
1643: $msg.=&mt('Not available to make a reservation.');
1.159 albertel 1644: }
1645: $result.=$msg.'<br />';
1646: } elsif ($target eq 'tex') {
1.332 albertel 1647: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1648: : '\begin{minipage}{\textwidth}';
1.443 foxr 1649: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1650: $startminipage.'\vskip 0 mm';
1.159 albertel 1651: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1652: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1653: } else {
1.211 albertel 1654: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1655: }
1656: }
1.324 albertel 1657: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1658: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1659: $style);
1.324 albertel 1660: if ($target eq 'web') {
1.375 albertel 1661: $result .=
1662: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1663: } elsif ($target eq 'grade') {
1664: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1665: 'problem');
1666: }
1.159 albertel 1667: } elsif ($target eq 'web') {
1.508 raeburn 1668: if ($status eq 'CAN_ANSWER') {
1669: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1670: if ($slot_name ne '') {
1671: my $checked_in =
1672: $Apache::lonhomework::history{'resource.0.checkedin'};
1673: if ($checked_in eq '') {
1674: # unproctored slot access, self checkin
1675: &Apache::bridgetask::check_in('problem',undef,undef,
1676: $slot_name);
1677: $checked_in =
1678: $Apache::lonhomework::results{"resource.0.checkedin"};
1679: }
1680: if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1681: if ($slot->{'starttime'} < time()) {
1682: if (!$resource_due) {
1683: $resource_due = $slot->{'endtime'};
1684: } elsif ($slot->{'endtime'} < $resource_due) {
1685: $resource_due = $slot->{'endtime'};
1686: }
1687: }
1688: }
1689: }
1690: if ($resource_due) {
1691: my $time_left = $resource_due - time();
1692: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1693: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1694: }
1695: }
1696: }
1.368 albertel 1697: $result.="\n $form_tag_start \t".
1.227 albertel 1698: '<input type="hidden" name="submitted" value="yes" />';
1699: # create a page header and exit
1.284 albertel 1700: if ($env{'request.state'} eq "construct") {
1701: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1702: if ($Apache::lonhomework::type eq 'practice') {
1703: $result.= '<input type="submit" name="resetdata" '.
1704: 'value="'.&mt('New Problem Variation').'" />'.
1705: &practice_problem_header().'<hr />';
1706: }
1.227 albertel 1707: }
1708: # if we are viewing someone else preserve that info
1.284 albertel 1709: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1710: foreach my $field ('symb','courseid','domain','username') {
1711: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1712: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1713: }
1.479 raeburn 1714: foreach my $field ('trial','questiontype') {
1715: if ($env{"form.grade_$field"} ne '') {
1716: $result .= '<input type="hidden" name="grade_'.$field.
1717: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1718: }
1719: }
1.159 albertel 1720: }
1.490 raeburn 1721: if ($env{'form.grade_imsexport'}) {
1722: $result = '';
1723: }
1.159 albertel 1724: } elsif ($target eq 'tex') {
1.319 foxr 1725: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 1726: $result .= &select_metadata_hyphenation();
1727:
1.319 foxr 1728:
1.99 sakharuk 1729: }
1.159 albertel 1730: } elsif ($target eq 'edit') {
1.343 albertel 1731: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1732: $Apache::lonxml::warnings_error_header=
1733: &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 1734: my $temp=&Apache::edit::insertlist($target,$token);
1735: $result.=$temp;
1736: } elsif ($target eq 'modified') {
1737: $result=$token->[4];
1738: } else {
1739: # page_start returned a starting result, delete it if we don't need it
1740: $result = '';
1.99 sakharuk 1741: }
1.159 albertel 1742: return $result;
1.9 albertel 1743: }
1744:
1745: sub end_problem {
1.159 albertel 1746: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1747: my $result;
1.310 foxr 1748:
1.321 albertel 1749: if (!$Apache::lonxml::metamode) {
1750: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1751: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1752: }
1.319 foxr 1753:
1754: if ($target eq 'tex') {
1.321 albertel 1755: # Figure out the front matter and replace the
1756: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1757: # this in end_problem because whether or not we display due
1758: # dates depends on whether due dates have already been
1759: # displayed in the problem parts.
1760:
1.319 foxr 1761: my $frontmatter = '';
1762: my $startminipage = '';
1763: if (not $env{'form.problem_split'}=~/yes/) {
1764: $startminipage = '\begin{minipage}{\textwidth}';
1765: }
1766: my $id = $Apache::inputtags::part;
1767: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1768: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.526 raeburn 1769: my @packages = split(/,/,$packages);
1.319 foxr 1770: my $allow_print_points = 0;
1771: foreach my $partial_key (@packages) {
1772: if ($partial_key=~m/^part_0$/) {
1773: $allow_print_points=1;
1774: }
1775: }
1776: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1777: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1778: if (lc($env{'course.'.$env{'request.course.id'}.
1779: '.disableexampointprint'}) eq 'yes') {
1780: $allow_print_points=0;
1781: }
1782: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1783: 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 1784: &clear_required_languages();
1.319 foxr 1785: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1786: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1787:
1788: # Figure out what the due date is and if we need to print
1789: # it in the problem header. We have been logging the
1790: # last due date written to file.
1791:
1792: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1793: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1794: my $duedate_text = &mt('Due date: [_1]'
1795: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1796: my $temp_file;
1797: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1798:
1799: # Figure out what the last printed due date is or set it
1800: # to the epoch if no duedates have been printed.
1801:
1802: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1803: if (-e $filename) {
1804: $temp_file = Apache::File->new($filename);
1805: my @due_file = <$temp_file>;
1806: $due_file_content = $due_file[$#due_file];
1807: chomp $due_file_content;
1808: }
1809:
1810: # We display the due date iff it is not the same as the last
1811: # duedate in problem header ($due_file_content), and
1812: # none of our parts displayed a duedate.
1813: #
1814: my $parts_with_displayduedate;
1815: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1816: $parts_with_displayduedate =
1817: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1818: } else {
1819: $parts_with_displayduedate = 0;
1820: }
1821: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1822: $temp_file = Apache::File->new('>'.$filename);
1823: print $temp_file "$duetime\n";
1824: if (not $env{'request.symb'} =~ m/\.page_/) {
1825: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1826: $frontmatter .= $begin_doc.
1.448 bisitz 1827: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1828: } else {
1829: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1830: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1831: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1832: }
1.319 foxr 1833: }
1834: } else {
1.448 bisitz 1835: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1836: }
1837: } else {
1838: if (not $env{'request.symb'} =~ m/\.page_/) {
1839: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1840: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1841: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1842: }
1.319 foxr 1843: } else {
1.381 albertel 1844: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1845: }
1846: }
1847: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1848: }
1849:
1.159 albertel 1850: my $status=$Apache::inputtags::status['-1'];
1851: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1852: $target eq 'tex') {
1.249 albertel 1853: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1854: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1855: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1856: &Apache::inputtags::grade;
1.324 albertel 1857: } elsif ($status eq 'NEEDS_CHECKIN') {
1858: # no need to grade, and don't want to hide data
1.249 albertel 1859: } else {
1860: # move any submission data to .hidden
1861: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1862: }
1.159 albertel 1863: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1864: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1865: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1866: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1867: # if part is zero, no <part>s existed, so we need show the current
1868: # grading status
1869: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1870: $result.= $gradestatus;
1871: }
1872: if (
1.284 albertel 1873: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1874: ($target eq 'answer') || ($target eq 'tex')
1875: ) {
1.490 raeburn 1876: if (($target ne 'tex') &&
1877: ($env{'form.answer_output_mode'} ne 'tex') &&
1878: (!$env{'form.grade_imsexport'})) {
1.254 www 1879: $result.="</form>";
1.159 albertel 1880: }
1881: if ($target eq 'web') {
1.507 raeburn 1882: #
1883: # Closing </body></html> not added by end_page().
1884: # Added separately at end of this routine, after added
1885: # <script></script> so document will be valid xhtml.
1886: #
1887: $result.= &Apache::loncommon::end_page({'discussion' => 1,
1888: 'notbody' => 1});
1.159 albertel 1889: } elsif ($target eq 'tex') {
1.178 sakharuk 1890: my $endminipage = '';
1.284 albertel 1891: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1892: $endminipage = '\end{minipage}';
1893: }
1.284 albertel 1894: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1895: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1896: } else {
1.262 sakharuk 1897: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1898: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1899: $result .= $endminipage.'\end{document} ';
1900: } else {
1.382 albertel 1901: $result .= $endminipage;
1.262 sakharuk 1902: }
1.159 albertel 1903: }
1904: }
1905: }
1.476 www 1906: if ($target eq 'web') {
1907: $result.=&Apache::functionplotresponse::init_script();
1908: }
1.159 albertel 1909: if ($target eq 'grade') {
1910: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1911: &finalize_storage();
1912: }
1.284 albertel 1913: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1914: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1915: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1916: # normally we get it from above, but in CSTR
1.172 albertel 1917: # we always show answer mode too.
1.159 albertel 1918: }
1919: } elsif ($target eq 'meta') {
1920: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1921: @Apache::inputtags::response=();
1.159 albertel 1922: $result=&Apache::response::mandatory_part_meta;
1923: }
1.215 albertel 1924: $result.=&Apache::response::meta_part_order();
1.258 albertel 1925: $result.=&Apache::response::meta_response_order();
1.159 albertel 1926: } elsif ($target eq 'edit') {
1927: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1928: $result .= &problem_edit_footer();
1.320 albertel 1929: } elsif ($target eq 'modified') {
1930: $result .= $token->[2];
1.159 albertel 1931: }
1.155 albertel 1932:
1.284 albertel 1933: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1934: &Apache::inputtags::check_for_duplicate_ids();
1935: }
1.204 albertel 1936:
1937: &reset_problem_globals('problem');
1.159 albertel 1938:
1.502 foxr 1939: #
1940: # This shouild be just above the return so that the
1941: # time put in the javascript is as late as possible in the
1942: # computation:
1943: #
1944: if ($target eq 'web') {
1945: $result .= &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 1946: #
1947: # Closing tags delayed so any <script></script> tags
1948: # not in head can appear inside body, for valid xhtml.
1949: #
1950: $result .= "</body>\n</html>";
1.502 foxr 1951: }
1.159 albertel 1952: return $result;
1.48 albertel 1953: }
1954:
1.108 albertel 1955:
1.48 albertel 1956: sub start_library {
1.159 albertel 1957: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1958: my ($result,$form_tag_start);
1.371 albertel 1959: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1960: &init_problem_globals('library');
1961: $Apache::lonhomework::type='problem';
1962: }
1.159 albertel 1963: if ($target eq 'edit') {
1.343 albertel 1964: ($result,$form_tag_start)=
1965: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1966: 'Edit');
1967: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1968: my $temp=&Apache::edit::insertlist($target,$token);
1969: $result.=$temp;
1970: } elsif ($target eq 'modified') {
1971: $result=$token->[4];
1.340 albertel 1972: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1973: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1974: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1975: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1976: ($result,$form_tag_start)=
1977: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1978: $name);
1.479 raeburn 1979: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 1980: $result.=" \n $form_tag_start".
1.159 albertel 1981: '<input type="hidden" name="submitted" value="yes" />';
1982: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1983: if ($Apache::lonhomework::type eq 'practice') {
1984: $result.= '<input type="submit" name="resetdata" '.
1985: 'value="'.&mt('New Problem Variation').'" />'.
1986: &practice_problem_header().'<hr />';
1987: }
1.159 albertel 1988: }
1989: return $result;
1.48 albertel 1990: }
1991:
1992: sub end_library {
1.159 albertel 1993: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1994: my $result='';
1995: if ($target eq 'edit') {
1996: $result=&problem_edit_footer();
1.371 albertel 1997: } elsif ($target eq 'web'
1998: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1999: && $env{'request.state'} eq "construct") {
1.349 albertel 2000: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 2001: }
1.371 albertel 2002: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
2003: &reset_problem_globals('library');
2004: }
1.159 albertel 2005: return $result;
1.197 www 2006: }
2007:
2008: sub start_definetag {
1.326 albertel 2009: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 2010:
2011: my $result;
2012:
2013: my $name = $token->[2]->{'name'};
1.326 albertel 2014: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 2015: if ($target eq 'web') {
2016: if ($name=~/^\//) {
2017: $result=
2018: '<br /><table class="LC_sty_end"><tr><th>'.
2019: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2020: } else {
2021: $result=
2022: '<br /><table class="LC_sty_begin"><tr><th>'.
2023: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2024: }
2025: $skip = &HTML::Entities::encode($skip, '<>&"');
2026: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 2027: }
2028: return $result;
2029: }
2030:
2031: sub end_definetag {
2032: return '';
1.1 albertel 2033: }
2034:
2035: sub start_block {
1.201 albertel 2036: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 2037:
2038: my $result;
1.1 albertel 2039:
1.339 albertel 2040: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2041: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 2042: my $code = $token->[2]->{'condition'};
1.385 albertel 2043: if (defined($code) && $code ne '') {
1.137 albertel 2044: if (!$Apache::lonxml::default_homework_loaded) {
2045: &Apache::lonxml::default_homework_load($safeeval);
2046: }
1.131 albertel 2047: $result = &Apache::run::run($code,$safeeval);
2048: &Apache::lonxml::debug("block :$code: returned :$result:");
2049: } else {
2050: $result='1';
2051: }
2052: if ( ! $result ) {
1.201 albertel 2053: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 2054: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2055: }
2056: $result='';
2057: } elsif ($target eq 'edit') {
2058: $result .=&Apache::edit::tag_start($target,$token);
2059: $result .=&Apache::edit::text_arg('Test Condition:','condition',
2060: $token,40);
2061: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2062: } elsif ($target eq 'modified') {
2063: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2064: $safeeval,'condition');
2065: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 2066: }
1.131 albertel 2067: return $result;
1.1 albertel 2068: }
2069:
2070: sub end_block {
1.167 www 2071: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2072: my $result;
2073: if ($target eq "edit") {
2074: $result.= &Apache::edit::tag_end($target,$token,'');
2075: }
2076: return $result;
2077: }
1.500 foxr 2078: #
2079: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
2080: # ...
2081: # </languageblock>
2082: #
2083: # This declares the intent to provide content that can be rendered in the
2084: # set of languages in the include specificatino but not in the exclude
2085: # specification. If a currently preferred language is in the include list
2086: # the content in the <languageblock>...</languageblock> is rendered
2087: # If the currently preferred language is in the exclude list,
2088: # the content in the <languageblock>..></languageblock is not rendered.
2089: #
2090: # Pathalogical case handling:
2091: # - Include specified, without the preferred language but exclude specified
2092: # also without the preferred langauge results in rendering the block.
2093: # - Exclude specified without include and excluden not containing a
2094: # preferred language renders the block.
2095: # - Include and exclude both specifying the preferred language does not
2096: # render the block.
2097: # - If neither include/exclude is specified, the block gets rendered.
2098: #
2099: # This tag has no effect when target is in {edit, modified}
2100: #
1.167 www 2101: sub start_languageblock {
1.201 albertel 2102: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 2103:
1.500 foxr 2104: my $result = '';
1.167 www 2105:
1.339 albertel 2106: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2107: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 2108: my $include = $token->[2]->{'include'};
2109: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 2110: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 2111:
2112: # This should not even happen, since we should at least have the server language
2113:
2114: if (!$preferred_languages[0]) {
2115: $preferred_languages[0]='en';
2116: }
2117:
2118: # Now loop over all languages in order of preference
2119:
2120: my $render;
1.398 www 2121: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 2122:
2123: # If neither include/nor exlude is present the block is going
2124: # to get rendered.
2125:
1.399 www 2126: my $found=0;
1.500 foxr 2127: $render=1;
2128:
2129: # If include is specified, don't render the block
2130: # unless the preferred language is included in the set.
2131:
1.398 www 2132: if ($include) {
1.500 foxr 2133: $render=0;
1.398 www 2134: foreach my $included_language (split(/\,/,$include)) {
2135: if ($included_language eq $preferred_language) {
1.500 foxr 2136: $render=1;
1.399 www 2137: $found=1;
1.500 foxr 2138: last; # Only need to find the first.
1.398 www 2139: }
2140: }
2141: }
1.500 foxr 2142: # Do we have an exclude argument?
2143: # If so, and one of the languages matches a preferred language
2144: # inhibit rendering the block. Note that in the pathalogical case the
2145: # author has specified a preferred language in both the include and exclude
2146: # attribte exclude is preferred.
2147:
1.398 www 2148: if ($exclude) {
1.500 foxr 2149: $render=1;
1.398 www 2150: foreach my $excluded_language (split(/\,/,$exclude)) {
2151: if ($excluded_language eq $preferred_language) {
1.500 foxr 2152: $render=0;
1.399 www 2153: $found=1;
1.500 foxr 2154: last; # Only need to find the first.
1.398 www 2155: }
2156: }
2157: }
1.500 foxr 2158: if ($found) {
2159: last; # Done on any match of include or exclude.
2160: }
1.398 www 2161: }
1.500 foxr 2162: # If $render not true skip the entire block until </languageblock>
2163: #
2164:
2165: if ( ! $render ) {
1.201 albertel 2166: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
2167: $style);
2168: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2169: }
1.500 foxr 2170: # If $render is true, we've not skipped the contents of the <languageglock>
2171: # and the normal loncapa processing flow will render it as a matter of course.
2172:
1.167 www 2173: } elsif ($target eq 'edit') {
2174: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2175: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 2176: $token,40);
1.211 albertel 2177: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 2178: $token,40);
2179: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2180: } elsif ($target eq 'modified') {
2181: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 2182: $safeeval,'include',
2183: 'exclude');
1.167 www 2184: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2185: }
2186: return $result;
2187: }
2188:
2189: sub end_languageblock {
1.170 www 2190: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2191: my $result;
1.201 albertel 2192: if ($target eq "edit") {
1.170 www 2193: $result.= &Apache::edit::tag_end($target,$token,'');
2194: }
2195: return $result;
2196: }
1.500 foxr 2197: # languagblock specific tags:
2198: {
2199: # For chunks of a resource that has translations, this hash contains
2200: # the translations available indexed by language name.
2201: #
2202:
2203: my %available_texts;
1.170 www 2204:
1.500 foxr 2205: # <translated> starts a block of a resource that has multiple translations.
2206: # See the <lang> tag as well.
2207: # When </translated> is encountered if there is a translation for the
2208: # currently preferred language, that is rendered inthe web/tex/webgrade
2209: # targets. Otherwise, the default text is rendered.
2210: #
2211: # Note that <lang> is only registered for the duration of the
2212: # <translated>...</translated> block
2213: #
2214: # Pathalogical case handling:
2215: # - If there is no <lang> that specifies a 'default' and there is no
2216: # translation that matches a preferred language, nothing is rendered.
2217: # - Nested <translated>...</translated> might be linguistically supported by
2218: # XML due to the stack nature of tag registration(?) however the rendered
2219: # output will be incorrect because there is only one %available_texts
2220: # has and end_translated clears it.
2221: # - Material outside of a <lang>...</lang> block within the
2222: # <translated>...<translated> block won't render either e.g.:
2223: # <translated>
2224: # The following will be in your preferred langauge:
2225: # <lang which='en'>
2226: # This section in english
2227: # </lang>
2228: # <lang which='sgeiso'>
2229: # Hier es ist auf Deutsch.
2230: # </lang>
2231: # <lang which='sfriso'>
2232: # En Francais
2233: # </lang>
2234: # </translated>
2235: #
2236: # The introductory text prior to the first <lang> tag is not rendered.
2237: #
1.397 albertel 2238: sub start_translated {
2239: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2240: &Apache::lonxml::register('Apache::structuretags',('lang'));
2241: undef(%available_texts);
2242: }
2243:
2244: sub end_translated {
2245: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2246: my $result;
2247: #show the translation on viewable targets
2248: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
2249: # or non-viewable targets, if it's embedded in something that
2250: # wants the output
2251: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
2252: && &Apache::lonxml::in_redirection() ) ) {
2253: my @possibilities = keys(%available_texts);
2254: my $which =
2255: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 2256: if ($target eq 'tex') {
2257: $result = &select_hyphenation($which);
2258: }
2259: $result .= $available_texts{$which};
2260: if ($target eq 'tex') {
2261: $result .= &select_metadata_hyphenation(); # Restore original language.
2262: }
1.397 albertel 2263: }
2264: undef(%available_texts);
2265: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
2266: return $result;
2267: }
2268:
1.500 foxr 2269: # <lang [which='language-name'] [other='lang1,lang2...']>
2270: # Specifies that the block contained within it is a translation
2271: # for a specific language specified by the 'which' attribute. The
2272: # 'other' attribute can be used by itself or in conjunction with
2273: # which to specify this tag _may_ be used as a translation for some
2274: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
2275: # specifying that the block provides a translation for US (primary)
2276: # Canadian, Australian and UK Englush.
2277: #
2278: # Comment: this seems a bit silly why not just support a list of languages
2279: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
2280: #
2281: # Effect:
2282: # The material within the <lang>..</lang> block is stored in the
2283: # specified set of $available_texts hash entries, the appropriate one
2284: # is selected at </translated> time.
2285: #
2286: # Pathalogical case handling:
2287: # If a language occurs multiple times within a <translated> block,
2288: # only the last one is rendered e.g.:
2289: #
2290: # <translated>
2291: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
2292: # Red green color blindness is quite common affecting about 7.8% of
2293: # the male population, but onloy about .65% of the female population.
2294: # </lang>
2295: # Red green colour blindness is quite common affecting about 7.8% of
2296: # the male population, but onloy about .65% of the female population.
2297: # <lang which='seniso', other='senisoCA,senisoAU'>
2298: # </translated>
2299: #
2300: # renders the correct spelling of color (colour) for people who have specified
2301: # a preferred language that is one of the British Commonwealth languages
2302: # even though those are also listed as valid selections for the US english
2303: # <lang> block.
2304: #
1.397 albertel 2305: sub start_lang {
2306: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2307: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2308: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2309: &Apache::lonxml::startredirection();
2310: }
2311: return '';
2312: }
2313:
2314: sub end_lang {
2315: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2316: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2317: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2318: my $result = &Apache::lonxml::endredirection();
2319: my $which = &Apache::lonxml::get_param('which',$parstack,
2320: $safeeval);
1.431 raeburn 2321: if ($which=~/\w/) {
2322: $available_texts{$which} = $result;
2323: }
2324: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
2325: $safeeval);
2326: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
2327: if ($language=~/\w/) {
2328: $available_texts{$language} = $result;
2329: }
1.427 bisitz 2330: }
2331:
1.397 albertel 2332: }
2333: return '';
2334: }
1.500 foxr 2335: } # end langauge block specific tags.
2336:
1.397 albertel 2337:
1.170 www 2338: sub start_instructorcomment {
1.201 albertel 2339: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 2340:
2341: my $result;
2342:
1.339 albertel 2343: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2344: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 2345: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 2346: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 2347: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
2348: $parser,$style);
1.170 www 2349: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2350: }
2351: $result='';
2352: } elsif ($target eq 'edit') {
2353: $result .=&Apache::edit::tag_start($target,$token);
2354: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2355: }
2356: return $result;
2357: }
2358:
2359: sub end_instructorcomment {
1.159 albertel 2360: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2361: my $result;
2362: if ($target eq "edit") {
2363: $result.= &Apache::edit::tag_end($target,$token,'');
2364: }
2365: return $result;
1.4 tsai 2366: }
2367:
2368: sub start_while {
1.326 albertel 2369: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2370:
1.160 albertel 2371: my $result;
1.339 albertel 2372: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2373: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2374: my $code = $token->[2]->{'condition'};
1.4 tsai 2375:
1.160 albertel 2376: push( @Apache::structuretags::whileconds, $code);
2377: if (!$Apache::lonxml::default_homework_loaded) {
2378: &Apache::lonxml::default_homework_load($safeeval);
2379: }
2380: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2381: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2382: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2383: push( @Apache::structuretags::whileline, $token->[5]);
2384: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2385: if ( $result ) {
2386: &Apache::lonxml::newparser($parser,\$bodytext);
2387: }
2388: } elsif ($target eq 'edit') {
2389: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2390: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2391: $token,40);
2392: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2393: } elsif ($target eq 'modified') {
2394: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2395: $safeeval,'condition');
2396: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2397: }
1.160 albertel 2398: return $result;
1.4 tsai 2399: }
2400:
2401: sub end_while {
1.159 albertel 2402: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2403: my $result;
2404:
1.339 albertel 2405: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2406: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2407: my $code = pop(@Apache::structuretags::whileconds);
2408: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2409: my $line = pop(@Apache::structuretags::whileline);
2410: my $return = &Apache::run::run($code,$safeeval);
2411: my $starttime=time;
2412: my $error=0;
2413: while ($return) {
2414: if (time-$starttime >
2415: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2416: $return = 0; $error=1; next;
1.161 albertel 2417: }
2418: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2419: if ($target eq 'grade' || $target eq 'answer' ||
2420: $target eq 'analyze') {
2421: # grade/answer/analyze should produce no output but if we
2422: # are redirecting, the redirecter should know what to do
2423: # with the output
2424: if (!$Apache::lonxml::redirection) { undef($result); }
2425: }
1.161 albertel 2426: $return = &Apache::run::run($code,$safeeval);
2427: }
1.516 bisitz 2428: if ($error) {
2429: &Apache::lonxml::error(
2430: '<pre>'
2431: .&mt('Code ran too long. It ran for more than [_1] seconds.',
2432: $Apache::lonnet::perlvar{'lonScriptTimeout'})
2433: .&mt('This occurred while running <while> on line [_1].',
2434: $line)
2435: .'</pre>');
2436: }
1.160 albertel 2437: } elsif ($target eq "edit") {
2438: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2439: }
1.160 albertel 2440: return $result;
1.1 albertel 2441: }
1.6 tsai 2442:
1.160 albertel 2443: # <randomlist show="1">
1.6 tsai 2444: # <tag1>..</tag1>
2445: # <tag2>..</tag2>
2446: # <tag3>..</tag3>
1.160 albertel 2447: # ...
1.6 tsai 2448: # </randomlist>
2449: sub start_randomlist {
1.326 albertel 2450: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2451: my $result;
1.339 albertel 2452: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2453: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2454: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2455: my $b_parser= HTML::LCParser->new(\$body);
2456: $b_parser->xml_mode(1);
2457: $b_parser->marked_sections(1);
1.159 albertel 2458: my $b_tok;
2459: my @randomlist;
2460: my $list_item;
2461: while($b_tok = $b_parser->get_token() ) {
2462: if($b_tok->[0] eq 'S') { # start tag
2463: # get content of the tag until matching end tag
2464: # get all text upto the matching tag
2465: # and push the content into @randomlist
2466: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2467: $b_parser);
2468: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2469: push(@randomlist,$list_item);
2470: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2471: # $list_item</b>";
2472: }
2473: if($b_tok->[0] eq 'T') { # text
2474: # what to do with text in between tags?
2475: # print "<b>TEXT $b_tok->[1]</b><br />";
2476: }
2477: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2478: # print "<b>END-TAG $b_tok->[1]</b><br />";
2479: # }
2480: }
1.303 albertel 2481: if (@randomlist) {
2482: my @idx_arr = (0 .. $#randomlist);
2483: &Apache::structuretags::shuffle(\@idx_arr);
2484: my $bodytext = '';
2485: my $show=$#randomlist;
2486: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2487: $showarg--;
2488: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2489: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2490: my @currlist;
2491: my $part = $Apache::inputtags::part;
2492: if ($part ne '') {
2493: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2494: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2495: if (!(grep(/^\Q$part\E$/,@currlist))) {
2496: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2497: }
2498: } else {
2499: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2500: }
2501: }
2502: }
1.526 raeburn 2503: for my $i (0 .. $show) {
2504: $bodytext .= "$randomlist[ $idx_arr[$i] ]";
1.303 albertel 2505: }
2506: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2507: }
2508: } elsif ($target eq 'edit' ) {
2509: $result .=&Apache::edit::tag_start($target,$token);
2510: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2511: $token,5);
2512: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2513: } elsif ($target eq 'modified' ) {
2514: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2515: $safeeval,'show');
2516: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2517: }
2518: return $result;
1.7 tsai 2519: }
2520:
2521: sub shuffle {
2522: my $a=shift;
2523: my $i;
1.303 albertel 2524: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 2525: &Apache::response::pushrandomnumber();
1.159 albertel 2526: for($i=@$a;--$i;) {
2527: my $j=int(&Math::Random::random_uniform() * ($i+1));
2528: next if $i == $j;
2529: @$a[$i,$j] = @$a[$j,$i];
2530: }
1.251 albertel 2531: &Apache::response::poprandomnumber();
1.7 tsai 2532: }
1.6 tsai 2533: }
2534:
2535: sub end_randomlist {
1.159 albertel 2536: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2537: my $result;
2538: if ($target eq 'edit' ) {
2539: $result=&Apache::edit::tag_end($target,$token,
2540: 'End Randomly Parsed Block');
2541: }
2542: return $result;
1.6 tsai 2543: }
2544:
1.283 albertel 2545: sub ordered_show_check {
2546: my $last_part=$Apache::inputtags::partlist[-2];
2547: my $in_order=
2548: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2549: my $in_order_show=1;
2550: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2551: $in_order_show=&Apache::response::check_status($last_part);
2552: }
2553: return $in_order_show;
2554: }
2555:
1.469 www 2556:
2557: sub start_startpartmarker {
2558: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2559: my $result='';
2560: if ($target eq 'edit') {
2561: $result=&Apache::edit::tag_start($target,$token);
2562: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2563: $result.=&Apache::edit::end_table();
2564:
2565: }
2566: return $result;
2567: }
2568:
2569: sub end_startpartmarker {
2570: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2571: my @result;
2572: if ($target eq 'edit') { $result[1]='no'; }
2573: return @result;
2574: }
2575:
2576: sub start_endpartmarker {
2577: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2578: my $result='';
2579: if ($target eq 'edit') {
2580: $result=&Apache::edit::tag_start($target,$token);
2581: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2582: $result.=&Apache::edit::end_table();
2583:
2584: }
2585: return $result;
2586: }
2587:
2588: sub end_endpartmarker {
2589: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2590: my @result;
2591: if ($target eq 'edit') { $result[1]='no'; }
2592: return @result;
2593: }
2594:
2595:
2596:
2597:
2598:
1.11 albertel 2599: sub start_part {
1.326 albertel 2600: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2601: if (!$Apache::lonxml::metamode) {
2602: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2603: # duedates.
2604: }
1.159 albertel 2605: my $result='';
1.386 albertel 2606: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2607: $Apache::inputtags::part=$id;
1.177 albertel 2608: push(@Apache::inputtags::partlist,$id);
2609: @Apache::inputtags::response=();
1.159 albertel 2610: @Apache::inputtags::previous=();
2611: @Apache::inputtags::previous_version=();
1.405 albertel 2612: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2613: &Apache::response::reset_params();
2614:
1.159 albertel 2615: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2616: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2617: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.528 raeburn 2618: if ($Apache::lonhomework::type eq 'randomizetry') {
2619: my $rndseed=&setup_rndseed($safeeval,$target);
2620: if (($target eq 'grade') && &Apache::response::submitted()) {
1.529 raeburn 2621: $Apache::lonhomework::results{"resource.$id.rndseed"}=$rndseed;
1.528 raeburn 2622: }
2623: } elsif (($target eq 'grade') && &Apache::response::submitted()) {
1.529 raeburn 2624: $Apache::lonhomework::results{"resource.$id.rndseed"}=$Apache::lonhomework::rawrndseed;
1.528 raeburn 2625: }
1.283 albertel 2626: my $in_order_show=&ordered_show_check();
1.214 albertel 2627: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2628: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2629: &Apache::run::run($expression,$safeeval);
1.159 albertel 2630:
2631: if ($target eq 'meta') {
1.224 www 2632: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2633: return &Apache::response::mandatory_part_meta.
2634: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2635: } elsif ($target eq 'web' || $target eq 'grade' ||
2636: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2637: if ($hidden || !$in_order_show) {
1.326 albertel 2638: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2639: } else {
2640: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2641: push (@Apache::inputtags::status,$status);
2642: my $expression='$external::datestatus="'.$status.'";';
2643: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2644: &Apache::run::run($expression,$safeeval);
1.284 albertel 2645: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2646: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2647: }
1.216 albertel 2648: if (( $status eq 'CLOSED' ) ||
2649: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2650: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2651: ( $status eq 'BANNED') ||
2652: ( $status eq 'UNAVAILABLE') ||
2653: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2654: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2655: $style);
1.159 albertel 2656: if ( $target eq "web" ) {
1.211 albertel 2657: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2658: } elsif ( $target eq 'tex' ) {
1.284 albertel 2659: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2660: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2661: } else {
1.211 albertel 2662: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2663: }
1.159 albertel 2664: }
2665: } else {
2666: if ($target eq 'tex') {
1.284 albertel 2667: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2668: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2669: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2670: } else {
2671: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2672: }
1.195 sakharuk 2673: }
1.159 albertel 2674: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2675: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.526 raeburn 2676: my @allkeys = split(/,/,$allkeys);
1.222 sakharuk 2677: my $allow_print_points = 0;
2678: foreach my $partial_key (@allkeys) {
1.230 albertel 2679: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2680: if ($1 ne '0') {$allow_print_points=1;}
2681: }
2682: }
1.275 albertel 2683: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2684: if (defined($maxtries) && $maxtries < 0) {
2685: $allow_print_points=0;
2686: }
1.302 albertel 2687: if (lc($env{'course.'.$env{'request.course.id'}.
2688: '.disableexampointprint'}) eq 'yes') {
2689: $allow_print_points=0;
2690: }
1.463 foxr 2691: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2692: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2693:
2694: }
1.233 www 2695: } elsif ($target eq 'web') {
1.479 raeburn 2696: if ($status eq 'CAN_ANSWER') {
2697: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2698: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
2699: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
2700: my $num = scalar(@Apache::inputtags::partlist)-1;
2701: if ($probrandomize eq 'randomizetry') {
2702: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
2703: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2704: } else {
2705: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2706: if ($probrandtries ne $reqtries) {
2707: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2708: }
2709: }
2710: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
2711: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2712: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2713: }
2714: }
1.475 raeburn 2715: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2716: }
2717: }
2718: }
2719: } elsif ($target eq 'edit') {
2720: $result.=&Apache::edit::tag_start($target,$token);
2721: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2722: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2723: ' '.
2724: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2725: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2726: } elsif ($target eq 'modified') {
2727: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2728: $safeeval,'id','display');
1.159 albertel 2729: if ($constructtag) {
1.225 albertel 2730: #limiting ids to only letters numbers, and space
1.224 www 2731: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2732: $result = &Apache::edit::rebuild_tag($token);
2733: }
2734: }
2735: return $result;
1.11 albertel 2736: }
2737:
2738: sub end_part {
1.159 albertel 2739: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2740: &Apache::lonxml::debug("in end_part $target ");
2741: my $status=$Apache::inputtags::status['-1'];
2742: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2743: my $in_order_show=&ordered_show_check();
1.321 albertel 2744: my $result;
2745: if (!$Apache::lonxml::metamode) {
2746: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2747: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2748: }
1.312 albertel 2749: if ($target eq 'grade') {
1.249 albertel 2750: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2751: !$hidden && $in_order_show) {
1.311 foxr 2752: $result.=&Apache::inputtags::grade;
1.249 albertel 2753: } else {
2754: # move any submission data to .hidden
2755: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2756: }
1.283 albertel 2757: } elsif (($target eq 'web' || $target eq 'tex') &&
2758: !$hidden && $in_order_show) {
1.159 albertel 2759: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2760: $target);
1.490 raeburn 2761: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2762: ($env{'form.grade_imsexport'})) {
1.212 albertel 2763: $gradestatus='';
2764: }
1.311 foxr 2765: $result.=$gradestatus;
1.265 sakharuk 2766: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2767: } elsif ($target eq 'edit') {
1.311 foxr 2768: $result.=&Apache::edit::end_table();
1.322 albertel 2769: } elsif ($target eq 'modified') {
2770: $result .= $token->[2];
1.159 albertel 2771: }
2772: pop @Apache::inputtags::status;
2773: $Apache::inputtags::part='';
1.295 albertel 2774: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2775: return $result;
1.11 albertel 2776: }
1.1 albertel 2777:
1.25 albertel 2778: sub start_preduedate {
1.326 albertel 2779: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2780: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2781: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2782: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2783: if (!$Apache::lonhomework::scantronmode &&
2784: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2785: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2786: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2787: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2788: }
1.24 albertel 2789: }
1.159 albertel 2790: return '';
1.24 albertel 2791: }
2792:
1.25 albertel 2793: sub end_preduedate {
1.159 albertel 2794: return '';
1.24 albertel 2795: }
2796:
1.369 foxr 2797: # In all the modes where <postanswerdate> text is
2798: # displayable, all we do is eat up the text between the start/stop
2799: # tags if the conditions are not right to display it.
1.25 albertel 2800: sub start_postanswerdate {
1.326 albertel 2801: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2802: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2803: &Apache::lonnet::allowed('pav',
2804: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2805: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2806: $target eq 'tex' ) {
1.300 albertel 2807: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2808: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2809: (($target eq 'tex') && !$pav)) {
1.326 albertel 2810: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2811: }
2812: }
2813: return '';
1.24 albertel 2814: }
2815:
1.25 albertel 2816: sub end_postanswerdate {
1.159 albertel 2817: return '';
1.24 albertel 2818: }
2819:
1.25 albertel 2820: sub start_notsolved {
1.326 albertel 2821: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2822: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2823: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2824: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2825: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2826: if ($gradestatus =~ /^correct/ &&
2827: &Apache::response::show_answer()) {
1.159 albertel 2828: &Apache::lonxml::debug("skipping");
1.326 albertel 2829: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2830: }
1.24 albertel 2831: }
1.159 albertel 2832: return '';
1.24 albertel 2833: }
2834:
1.25 albertel 2835: sub end_notsolved {
1.159 albertel 2836: return '';
1.24 albertel 2837: }
2838:
2839: sub start_solved {
1.326 albertel 2840: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2841: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2842: $target eq 'tex') {
2843: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2844: if ($gradestatus !~ /^correct/ ||
2845: !&Apache::response::show_answer()) {
1.326 albertel 2846: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2847: }
1.24 albertel 2848: }
1.159 albertel 2849: return '';
1.24 albertel 2850: }
2851:
2852: sub end_solved {
1.248 albertel 2853: return '';
2854: }
2855:
2856: sub start_problemtype {
1.326 albertel 2857: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2858: my $result;
1.339 albertel 2859: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2860: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2861: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2862: if (!defined($mode)) { $mode='show'; }
2863: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2864: my $found=0;
2865: foreach my $type (split(',',$for)) {
2866: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2867: }
2868: if ($mode eq 'show' && !$found) {
1.326 albertel 2869: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2870: }
2871: if ($mode eq 'hide' && $found) {
1.326 albertel 2872: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2873: }
2874: } elsif ($target eq 'edit') {
2875: $result .=&Apache::edit::tag_start($target,$token);
2876: $result.=&Apache::edit::select_arg('Mode:','mode',
2877: [['show','Show'],
2878: ['hide','Hide']]
2879: ,$token);
2880: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.511 bisitz 2881: [ ['exam','Bubblesheet Exam/Quiz Problem'],
1.248 albertel 2882: ['survey','Survey'],
1.465 raeburn 2883: ['surveycred','Survey (with credit)'],
2884: ['anonsurvey','Anonymous Survey'],
2885: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2886: ['problem','Homework Problem'],
1.479 raeburn 2887: ['practice','Practice Problem'],
2888: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2889: ,$token);
2890: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2891: } elsif ($target eq 'modified') {
2892: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2893: $safeeval,'mode','for');
2894: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2895: }
2896: return $result;
2897: }
2898:
2899: sub end_problemtype {
1.159 albertel 2900: return '';
1.24 albertel 2901: }
1.34 albertel 2902:
2903: sub start_startouttext {
1.159 albertel 2904: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2905: my @result=(''.'');
2906: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2907:
2908: my $nesting =
2909: &Apache::lonxml::set_state('outtext',
2910: &Apache::lonxml::get_state('outtext')+1);
2911: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2912: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2913: }
1.159 albertel 2914: return (@result);
1.34 albertel 2915: }
1.159 albertel 2916:
1.34 albertel 2917: sub end_startouttext {
1.326 albertel 2918: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2919: my $result='';
2920: my $text='';
2921: if ($target eq 'edit') {
1.424 foxr 2922: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2923: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.527 golterma 2924: $result.=&Apache::edit::start_table($token)."<tr><td>".&Apache::loncommon::insert_folding_button()
2925: ." ".&mt('Text Block')."</td>"
1.438 bisitz 2926: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2927: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 2928: .'</span></td>'
1.515 golterma 2929: .'<td><span id="math_'.$areaid.'">'
1.474 raeburn 2930: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
1.512 bisitz 2931: .'</span></td>'
1.474 raeburn 2932: .'<td>'
2933: .&Apache::edit::insertlist($target,$token)
2934: .'</td>'
1.515 golterma 2935: .'<td class="LC_edit_problem_latexhelper">' .
1.474 raeburn 2936: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2937: &Apache::edit::end_row().
1.362 albertel 2938: &Apache::edit::start_spanning_row()."\n".
1.255 www 2939: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2940: }
2941: if ($target eq 'modified') {
1.219 albertel 2942: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2943: }
2944: if ($target eq 'tex') {
2945: $result .= '\noindent ';
2946: }
2947: return $result;
1.34 albertel 2948: }
1.159 albertel 2949:
1.34 albertel 2950: sub start_endouttext {
1.159 albertel 2951: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2952: my $result='';
2953: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2954: if ($target eq "modified") {
2955: $result='<endouttext />'.
1.377 albertel 2956: &Apache::edit::handle_insertafter('startouttext');
2957: }
1.404 albertel 2958:
2959: my $nesting =
2960: &Apache::lonxml::set_state('outtext',
2961: &Apache::lonxml::get_state('outtext')-1);
2962: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2963: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2964: &Apache::lonxml::set_state('outtext', 0);
2965: }
1.159 albertel 2966: return $result;
1.34 albertel 2967: }
1.159 albertel 2968:
1.34 albertel 2969: sub end_endouttext {
1.159 albertel 2970: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2971: my @result=('','');
2972: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2973: return (@result);
1.34 albertel 2974: }
1.159 albertel 2975:
1.45 albertel 2976: sub delete_startouttext {
1.326 albertel 2977: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2978: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2979: my $text=$$parser['-1']->get_text("/endouttext");
2980: my $ntoken=$$parser['-1']->get_token();
2981: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2982: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2983: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2984: # they did the last time round
2985: &Apache::lonxml::increasedepth($ntoken);
2986: &Apache::lonxml::decreasedepth($ntoken);
2987: return 1;
1.193 www 2988: }
2989:
2990: sub start_simpleeditbutton {
2991: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2992: my $result='';
1.284 albertel 2993: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2994: ($target eq 'web') &&
1.330 albertel 2995: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2996: my $url=$env{'request.noversionuri'};
1.193 www 2997: $url=~s/\?.*$//;
1.367 albertel 2998: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 2999: # Warning makes more sense and is more important on edit screen
1.442 bisitz 3000: # $result='<p class="LC_warning">'
3001: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
3002: # .&Apache::loncommon::help_open_topic('Caching')
3003: # .'</p>';
1.486 www 3004: $result.=&Apache::loncommon::head_subbox(
3005: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 3006: .&Apache::lonhtmlcommon::add_item_funclist(
3007: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
3008: .&mt('Edit').'</a>')
1.486 www 3009: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 3010:
1.193 www 3011: }
3012: return $result;
3013: }
3014:
3015: sub end_simpleeditbutton {
3016: return '';
1.45 albertel 3017: }
1.34 albertel 3018:
1.428 raeburn 3019: sub practice_problem_header {
3020: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
3021: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
3022: '</span>';
3023: }
3024:
1.479 raeburn 3025: sub randomizetry_problem_header {
3026: my ($problemstatus,$reqtries) = @_;
3027: my ($header,$text);
3028: if ($reqtries > 1) {
3029: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
3030: if (($problemstatus eq 'no') ||
3031: ($problemstatus eq 'no_feedback_ever')) {
3032: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3033: } else {
3034: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3035: }
3036: } else {
3037: $header = &mt('New Problem Variation Each Try');
3038: if (($problemstatus eq 'no') ||
3039: ($problemstatus eq 'no_feedback_ever')) {
3040: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
3041:
3042: } else {
3043: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
3044: }
3045: }
3046: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
3047: '<span class="LC_info">'.$text.'</span><hr />';
3048: }
3049:
3050: sub randomizetry_part_header {
3051: my ($problemstatus,$reqtries,$num) = @_;
3052: my ($header,$text);
3053: if ($reqtries eq 'none') {
3054: $header = &mt('No Question Variation');
3055: $text = &mt('For this question there will no new variation after a try.');
3056: } elsif ($reqtries > 1) {
3057: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
3058: if (($problemstatus eq 'no') ||
3059: ($problemstatus eq 'no_feedback_ever')) {
3060: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3061: } else {
3062: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3063: }
3064: } else {
3065: $header = &mt('New Question Variation For Each Try');
3066: if (($problemstatus eq 'no') ||
3067: ($problemstatus eq 'no_feedback_ever')) {
3068: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
3069: } else {
3070: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
3071: }
3072: }
3073: my $output;
3074: if ($num > 1) {
3075: $output .= '<hr />';
3076: }
3077: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
3078: '<span class="LC_info">'.$text.'</span><br /><br />';
3079: return $output;
3080: }
3081:
1.1 albertel 3082: 1;
3083: __END__
1.435 jms 3084:
3085: =pod
3086:
3087: =back
3088:
3089: =cut
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