Annotation of loncom/homework/structuretags.pm, revision 1.512.2.13.2.1
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.512.2.13.2. (raeburn 4:): # $Id: structuretags.pm,v 1.512.2.13 2017/03/14 12:20:57 raeburn Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.435 jms 30: =pod
31:
32: =head1 NAME
33:
34: Apache::structuretags
35:
36: =head1 SYNOPSIS
37:
38:
39: This is part of the LearningOnline Network with CAPA project
40: described at http://www.lon-capa.org.
41:
42:
43: =head1 NOTABLE SUBROUTINES
44:
45: =over
46:
47: =item
48:
49: =back
50:
51: =cut
52:
1.133 sakharuk 53:
1.1 albertel 54: package Apache::structuretags;
55:
56: use strict;
57: use Apache::lonnet;
1.101 sakharuk 58: use Apache::File();
1.147 www 59: use Apache::lonmenu;
1.210 albertel 60: use Apache::lonlocal;
1.231 sakharuk 61: use Apache::lonxml;
1.434 foxr 62: use Apache::londefdef;
1.338 albertel 63: use Apache::lonenc();
1.500 foxr 64: use Apache::loncommon();
1.267 albertel 65: use Time::HiRes qw( gettimeofday tv_interval );
1.356 www 66: use lib '/home/httpd/lib/perl/';
67: use LONCAPA;
68:
1.78 harris41 69: BEGIN {
1.469 www 70: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','translated','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startpartmarker','startouttext','endpartmarker','endouttext','simpleeditbutton','definetag'));
1.10 albertel 71: }
72:
1.500 foxr 73:
74: #---------------------------------------------------------------------------------
75: #
76: # This section of code deals with hyphenation management.
77: # We must do three things:
78: # - keep track fo the desired languages to alter the header.
79: # - provide hyphenation selection as needed by each language that appears in the
80: # text.
81: # - Provide the header text needed to make available the desired hyphenations.
82: #
83: #
84:
85: # Hash whose keys are the languages encountered in the document/resource.
86: #
87:
88: my %languages_required;
89: ##
90: # Given a language selection as input returns a chunk of LaTeX that
91: # selects the required hyphenator.
92: #
93: # @param language - the language being selected.
94: # @return string
95: # @retval The LaTeX needed to select the hyphenation appropriate to the language.
96: #
97: sub select_hyphenation {
98: my $language = shift;
99:
100: $language = &Apache::loncommon::latexlanguage($language); # Translate -> latex language.
101:
102: # If there is no latex language there's not much we can do:
103:
104: if ($language) {
105: &require_language($language);
106: my $babel_hyphenation = "\\selectlanguage{$language}";
107:
108: return $babel_hyphenation;
109: } else {
110: return '';
111: }
112: }
113: ##
114: # Selects hyphenation based on the current problem metadata.
115: # This requires that
116: # - There is a language metadata item set for the problem.
117: # - The language has a latex/babel hyphenation.
118: #
119: # @note: Uses &Apache::lonxml::request to locate the Uri associated with
120: # this problem.
121: # @return string (possibly empty).
122: # @retval If not empty an appropriate \selectlanguage{} directive.
123: #
124: sub select_metadata_hyphenation {
125: my $uri = $Apache::lonxml::request->uri;
126: my $language = &Apache::lonnet::metadata($uri, 'language');
127: my $latex_language = &Apache::loncommon::latexhyphenation($language);
128: if ($latex_language) {
129: return '\selectlanguage{'.$latex_language."}\n";
130: }
131: return ''; # no latex hyphenation or no lang metadata.
132: }
133:
134:
135: ##
136: # Clears the set of languages required by the document being rendered.
137: #
138: sub clear_required_languages {
139: %languages_required = ();
140: }
141: ##
142: # Allows an external client of this module to register a need for a language:
143: #
144: # @param LaTeX language required:
145: #
146: sub require_language {
147: my $language = shift;
148: $languages_required{$language} = 1;
149: }
150:
151: ##
152: # Provides the header for babel that indicates the languages
153: # the document requires.
154: # @return string
155: # @retval \usepackage[lang1,lang2...]{babel}
156: # @retval '' if there are no languages_required.
157: sub languages_header {
158: my $header ='';
159: my @languages = (keys(%languages_required));
160:
161: # Only generate the header if there are languages:
162:
163: if (scalar @languages) {
164: my $language_list = join(',', (@languages));
165: $header = '\usepackage['.$language_list."]{babel}\n";
166: }
167: return $header;
168: }
169:
170: #----------------------------------------------------------------------------------
171:
1.10 albertel 172: sub start_web {
1.326 albertel 173: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 174: if ($target ne 'edit' && $target ne 'modified') {
175: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
176: if ($target eq 'web' || $target eq 'webgrade') {
177: return $bodytext;
178: }
179: } elsif ($target eq "edit" ) {
180: my $bodytext =
181: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
182: my $result = &Apache::edit::tag_start($target,$token);
183: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
184: return $result;
185: } elsif ( $target eq "modified" ) {
186: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 187: }
188: return '';
1.10 albertel 189: }
190:
191: sub end_web {
1.44 ng 192: return '';
1.10 albertel 193: }
194:
195: sub start_tex {
1.326 albertel 196: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 197: my $result='';
1.383 albertel 198: if ($target ne 'edit' && $target ne 'modified') {
199: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
200: if ($target eq 'tex') {
1.434 foxr 201:
202: # If inside a table, occurrences of \\ must be removed;
203: # else the table blows up.
204:
205: if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
206: $bodytext =~ s/\\\\//g;
207: }
1.432 foxr 208: return $bodytext.'{}';
1.383 albertel 209: }
210: } elsif ($target eq "edit" ) {
211: my $bodytext =
212: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
213: my $result = &Apache::edit::tag_start($target,$token);
214: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
215: return $result;
216: } elsif ( $target eq "modified" ) {
217: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 218: }
1.198 sakharuk 219: return $result;;
1.10 albertel 220: }
221:
222: sub end_tex {
1.44 ng 223: return '';
1.9 albertel 224: }
225:
1.400 albertel 226: sub homework_js {
1.512.2.9 raeburn 227: my ($postsubmit,$timeout);
228: if (($env{'request.course.id'}) && ($env{'request.state'} ne 'construct')) {
229: my $crstype;
230: if (&Apache::loncommon::course_type() eq 'Community') {
231: $crstype = 'community';
232: } else {
233: if ($env{'course.'.$env{'request.course.id'}.'.internal.coursecode'}) {
234: $crstype = 'official';
235: } elsif ($env{'course.'.$env{'request.course.id'}.'.internal.textbook'}) {
236: $crstype = 'textbook';
237: } else {
238: $crstype = 'unofficial';
239: }
240: }
241: $postsubmit = $env{'course.'.$env{'request.course.id'}.'.internal.postsubmit'};
242: if ($postsubmit eq '') {
243: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
244: $postsubmit = $domdefs{'postsubmit'};
245: unless ($postsubmit eq 'off') {
246: $timeout = $domdefs{$crstype.'postsubtimeout'};
247: }
248: } elsif ($postsubmit eq '0') {
249: $postsubmit = 'off';
250: } elsif ($postsubmit eq '1') {
251: $postsubmit = 'on';
252: $timeout = $env{'course.'.$env{'request.course.id'}.'.internal.postsubtimeout'};
253: if ($timeout eq '') {
254: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
255: $timeout = $domdefs{$crstype.'postsubtimeout'};
256: }
257: }
258: if ($timeout eq '') {
259: $timeout = 60;
260: }
261: } else {
262: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'request.role.domain'});
263: $postsubmit = $domdefs{'postsubmit'};
264: unless ($postsubmit eq 'off') {
265: $timeout = 60;
266: }
267: }
268: my $jstimeout = 0;
269: if ($timeout) {
270: $jstimeout = 1000 * $timeout;
271: }
1.400 albertel 272: return &Apache::loncommon::resize_textarea_js().
1.512.2.11 raeburn 273: &Apache::loncommon::colorfuleditor_js().
1.416 raeburn 274: &setmode_javascript().
1.512.2.9 raeburn 275: <<"JS";
1.400 albertel 276: <script type="text/javascript">
1.483 raeburn 277: // <![CDATA[
1.494 raeburn 278: function setSubmittedPart (part,prefix) {
279: if (typeof(prefix) == 'undefined') {
280: this.document.lonhomework.submitted.value="part_"+part;
281: } else {
282: for (var i=0;i<this.document.lonhomework.elements.length;i++) {
283: if (this.document.lonhomework.elements[i].name == prefix+'submitted') {
284: this.document.lonhomework.elements[i].value="part_"+part;
285: }
286: }
287: }
1.400 albertel 288: }
289:
1.512.2.9 raeburn 290: function disableAutoComplete (id) {
291: var field = document.getElementById(id);
292: if (field != null && field != undefined){
293: if ('autocomplete' in field) {
294: field.autocomplete = "off";
295: } else {
296: field.setAttribute("autocomplete", "off");
297: }
298: }
299: }
300:
1.400 albertel 301: function image_response_click (which, e) {
302: init_geometry();
303: if (!e) { e = window.event; } //IE
304: var input_element = document.lonhomework.elements[which];
1.401 albertel 305: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 306: var token = token_element.value;
1.401 albertel 307: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 308: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
309: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
310: var click = x+':'+y;
311: input_element.value = click;
1.485 raeburn 312: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
1.400 albertel 313: }
1.512.2.9 raeburn 314:
315: var submithandled = 0;
316: var keypresshandled = 0;
317: var postsubmit = '$postsubmit';
318:
319: \$(document).ready(function(){
320: if (postsubmit != 'off') {
321: \$(document).keypress(function(event){
322: var keycode = (event.keyCode ? event.keyCode : event.which);
323: if ((keycode == '13') && (keypresshandled == 0)) {
324: if ( \$( document.activeElement ).hasClass("LC_textline") ) {
325: keypresshandled = 1;
326: var idsArray = \$( document.activeElement ).attr("id").split(/HWVAL_/);
327: if (idsArray.length) {
328: event.preventDefault();
329: var itemsArray = idsArray[1].split(/_/);
330: var buttonId = idsArray[0]+'submit_'+itemsArray[0];
331: \$("#"+buttonId).trigger("click");
332: }
333: }
334: }
335: });
336:
337: \$(document).delegate('form :submit', 'click', function( event ) {
338: if ( \$( this ).hasClass( "LC_hwk_submit" ) ) {
339: var buttonId = this.id;
340: var timeout = $jstimeout;
341: if (submithandled == 0) {
342: submithandled = 1;
343: \$( "#msg_"+buttonId ).css({"display": "inline","background-color": "#87cefa",
344: "color": "black","padding": "2px"}) ;
345: if (( \$(this.form).id == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
346: if (buttonId != "all_submit") {
347: \$( ".LC_status_"+buttonId ).hide();
348: if (( "#"+buttonId+"_pressed" ).length) {
349: \$( "#"+buttonId+"_pressed" ).val( "1" );
350: }
351: }
352: } else {
353: \$( ".LC_status_"+buttonId ).hide();
354: }
355: \$(this.form).submit();
356: \$( ".LC_hwk_submit" ).prop( "disabled", true);
357: \$( ".LC_textline" ).prop( "readonly", "readonly");
358: event.preventDefault();
359:
360: if (timeout > 0) {
361: setTimeout(function(){
362: \$( "#msg_"+buttonId ).css({"display": "none"});
363: if (( \$(this.form).id == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
364: if (buttonId != "all_submit") {
365: if (( "#"+buttonId+"_pressed" ).length) {
366: \$( "#"+buttonId+"_pressed" ).val( "" );
367: }
368: }
369: }
370: \$( ".LC_hwk_submit" ).prop( "disabled", false);
371: \$( ".LC_textline" ).prop( "readonly", false);
372: submithandled = 0;
373: keypresshandled = 0;
374: }, timeout);
375: }
376: return true;
377: }
378: }
379: });
380: }
381: });
382:
1.483 raeburn 383: // ]]>
1.400 albertel 384: </script>
385: JS
386: }
387:
1.416 raeburn 388: sub setmode_javascript {
389: return <<"ENDSCRIPT";
390: <script type="text/javascript">
1.485 raeburn 391: // <![CDATA[
1.416 raeburn 392: function setmode(form,probmode) {
1.512.2.13 raeburn 393: var initial = form.problemmode.value;
1.416 raeburn 394: form.problemmode.value = probmode;
395: form.submit();
1.512.2.13 raeburn 396: form.problemmode.value = initial;
1.416 raeburn 397: }
1.485 raeburn 398: // ]]>
1.416 raeburn 399: </script>
400: ENDSCRIPT
401: }
402:
1.48 albertel 403: sub page_start {
1.345 albertel 404: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
405: $extra_head)=@_;
1.159 albertel 406: my %found;
1.207 albertel 407: foreach my $taginside (@$tagstack) {
1.159 albertel 408: foreach my $taglookedfor ('html','body','form') {
409: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
410: }
411: }
412:
1.343 albertel 413: if ($target eq 'tex') {
414: return
415: &Apache::londefdef::start_html($target,$token,$tagstack,
416: $parstack,$parser,$safeeval);
417: }
418:
1.474 raeburn 419: $extra_head .= &homework_js().
420: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
421: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
1.512.2.12 raeburn 422: my %textarea_args;
423: if (($env{'request.state'} ne 'construct') ||
424: ($env{'environment.nocodemirror'})) {
425: %textarea_args = (
1.474 raeburn 426: dragmath => 'math',
427: );
1.512.2.12 raeburn 428: }
1.474 raeburn 429: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 430: }
1.478 raeburn 431: my $is_task = ($env{'request.uri'} =~ /\.task$/);
1.512.2.9 raeburn 432: my ($needs_upload,$partlist);
1.495 raeburn 433: my ($symb)= &Apache::lonnet::whichuser();
434: my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
1.478 raeburn 435: if ($is_task) {
1.495 raeburn 436: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
1.493 raeburn 437: } else {
438: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.uploadedfiletypes") ne '') {
1.495 raeburn 439: unless ($env{'request.state'} eq 'construct') {
440: my $navmap = Apache::lonnavmaps::navmap->new();
441: if (ref($navmap)) {
442: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 443: my $is_page;
444: if (ref($mapres)) {
445: $is_page = $mapres->is_page();
446: }
447: unless ($is_page) {
1.495 raeburn 448: $needs_upload = 1;
449: }
1.512.2.9 raeburn 450: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
451: my $res = $navmap->getBySymb($symb);
452: if (ref($res)) {
453: $partlist = $res->parts();
454: }
455: }
1.495 raeburn 456: }
457: }
1.493 raeburn 458: } else {
459: unless ($env{'request.state'} eq 'construct') {
460: my $navmap = Apache::lonnavmaps::navmap->new();
461: if (ref($navmap)) {
1.495 raeburn 462: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 463: my $is_page;
464: if (ref($mapres)) {
465: $is_page = $mapres->is_page();
466: }
1.512.2.9 raeburn 467: if ($is_page) {
468: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
469: my $res = $navmap->getBySymb($symb);
470: if (ref($res)) {
471: $partlist = $res->parts();
472: }
473: }
474: } else {
1.495 raeburn 475: my $res = $navmap->getBySymb($symb);
476: if (ref($res)) {
1.512.2.9 raeburn 477: $partlist = $res->parts();
1.495 raeburn 478: if (ref($partlist) eq 'ARRAY') {
479: foreach my $part (@{$partlist}) {
480: my @types = $res->responseType($part);
481: my @ids = $res->responseIds($part);
482: for (my $i=0; $i < scalar(@ids); $i++) {
483: if ($types[$i] eq 'essay') {
484: my $partid = $part.'_'.$ids[$i];
485: if (&Apache::lonnet::EXT("resource.$partid.uploadedfiletypes") ne '') {
486: $needs_upload = 1;
487: last;
488: }
1.493 raeburn 489: }
490: }
491: }
1.495 raeburn 492: }
493: }
1.493 raeburn 494: }
495: }
496: }
497: }
1.495 raeburn 498: if ($needs_upload) {
499: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
500: }
1.478 raeburn 501: }
1.425 raeburn 502:
1.344 albertel 503: my %body_args;
504: if (defined($found{'html'})) {
505: $body_args{'skip_phases'}{'head'}=1;
506: } else {
1.343 albertel 507:
1.345 albertel 508: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 509:
1.379 albertel 510: $extra_head .= &Apache::londefdef::generate_css_links();
511:
1.384 albertel 512: if ($env{'request.state'} eq 'construct') {
1.343 albertel 513: $extra_head.=&Apache::edit::js_change_detection().
514: "<script type=\"text/javascript\">\n".
515: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
516: &Apache::loncommon::browser_and_searcher_javascript().
517: "\n</script>\n";
1.512.2.9 raeburn 518: if ($target eq 'edit') {
519: $extra_head .= &Apache::edit::js_update_linknum();
520: }
1.343 albertel 521: }
1.159 albertel 522: }
1.343 albertel 523:
1.446 bisitz 524: my $pageheader = '';
1.344 albertel 525: if (defined($found{'body'})) {
526: $body_args{'skip_phases'}{'body'}=1;
527: } elsif (!defined($found{'body'})
528: && $env{'request.state'} eq 'construct') {
1.343 albertel 529: if ($target eq 'web' || $target eq 'edit') {
1.512.2.3 raeburn 530: # Breadcrumbs for Authoring Space
1.450 bisitz 531: &Apache::lonhtmlcommon::clear_breadcrumbs();
532: &Apache::lonhtmlcommon::add_breadcrumb({
1.512.2.3 raeburn 533: 'text' => 'Authoring Space',
1.497 raeburn 534: 'href' => &Apache::loncommon::authorspace($env{'request.uri'}),
1.450 bisitz 535: });
1.460 droeschl 536: # breadcrumbs (and tools) will be created
537: # in start_page->bodytag->innerregister
538:
1.450 bisitz 539: # FIXME Where are we?
540: # &Apache::lonhtmlcommon::add_breadcrumb({
541: # 'text' => 'Problem Editing', # 'Problem Testing'
542: # 'href' => '',
543: # });
1.460 droeschl 544: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 545: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 546: }
1.272 albertel 547: } elsif (!defined($found{'body'})) {
1.343 albertel 548: my %add_entries;
1.159 albertel 549: my $background=&Apache::lonxml::get_param('background',$parstack,
550: $safeeval);
1.343 albertel 551: if ($background ne '' ) {
552: $add_entries{'background'} = $background;
553: }
1.344 albertel 554:
1.290 albertel 555: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
556: $safeeval);
1.446 bisitz 557: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 558:
1.446 bisitz 559: $body_args{'bgcolor'} = $bgcolor;
560: # $body_args{'no_title'} = 1;
561: $body_args{'force_register'} = 1;
562: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 563: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 564: $body_args{'only_body'} = 1;
1.512.2.7 raeburn 565: } elsif ($target eq 'web') {
566: $body_args{'print_suppress'} = 1;
1.446 bisitz 567: }
1.344 albertel 568: }
1.365 albertel 569: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 570: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
571: \%body_args);
1.446 bisitz 572: $page_start .= $pageheader;
1.462 raeburn 573: if (!defined($found{'body'})
574: && $env{'request.state'} ne 'construct'
575: && ($target eq 'web' || $target eq 'webgrade')) {
576:
577: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
578: if ($symb eq '' && !$publicuser) {
579: $page_start .= '<p class="LC_info">'
580: .&mt('Browsing resource, all submissions are temporary.')
581: .'</p>';
1.457 bisitz 582: }
1.344 albertel 583: }
584:
1.409 albertel 585: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 586: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 587: }
588: my $form_tag_start;
589: if (!defined($found{'form'})) {
1.337 albertel 590: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 591: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 592: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 593: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 594: $form_tag_start.=$uri.'" ';
595: if ($target eq 'edit') {
596: $form_tag_start.=&Apache::edit::form_change_detection();
597: }
1.493 raeburn 598: my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
599: my ($path,$multiresp) =
600: &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
1.495 raeburn 601: if (($is_task) || ($needs_upload)) {
602: $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
1.478 raeburn 603: }
1.368 albertel 604: $form_tag_start.='>'."\n";
1.355 albertel 605:
606: if ($symb =~ /\S/) {
607: $symb=
608: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
609: $form_tag_start.=
1.368 albertel 610: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 611: }
1.159 albertel 612: }
1.512.2.9 raeburn 613: return ($page_start,$form_tag_start,$partlist);
1.105 albertel 614: }
615:
1.141 matthew 616: #use Time::HiRes();
1.105 albertel 617: sub get_resource_name {
1.159 albertel 618: my ($parstack,$safeeval)=@_;
1.388 foxr 619: my $name;
1.204 albertel 620: if (defined($Apache::lonhomework::name)) {
1.388 foxr 621: $name = $Apache::lonhomework::name;
622: } else {
623: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 624: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 625: if ($name eq '') {
626: $name=&Apache::lonnet::EXT('resource.title');
627: if ($name eq 'con_lost') { $name = ''; }
628: }
629: if ($name!~/\S+/) {
630: $name=$env{'request.uri'};
631: $name=~s-.*/([^/]+)$-$1-;
632: }
633: # The name has had html tags escaped:
634:
635: $name=~s/</</gs;
636: $name=~s/>/>/gs;
637:
638: $Apache::lonhomework::name=$name;
1.204 albertel 639: }
1.159 albertel 640: return $name;
1.105 albertel 641: }
642:
643: sub setup_rndseed {
1.512.2.9 raeburn 644: my ($safeeval,$target,$probpartlist)=@_;
1.367 albertel 645: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 646: my ($questiontype,$set_safespace,$rndseed);
647: if ($target eq 'analyze') {
648: $questiontype = $env{'form.grade_questiontype'};
649: }
650: unless (defined($questiontype)) {
651: $questiontype = $Apache::lonhomework::type;
652: }
1.333 albertel 653: if ($env{'request.state'} eq "construct"
654: || $symb eq ''
655: || $Apache::lonhomework::type eq 'practice'
656: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 657: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 658: ['rndseed']);
1.284 albertel 659: $rndseed=$env{'form.rndseed'};
1.159 albertel 660: if (!$rndseed) {
1.162 albertel 661: $rndseed=$Apache::lonhomework::history{'rndseed'};
662: if (!$rndseed) {
663: $rndseed=time;
664: }
1.284 albertel 665: $env{'form.rndseed'}=$rndseed;
1.162 albertel 666: }
1.479 raeburn 667: if (($env{'request.state'} eq "construct") &&
668: ($Apache::lonhomework::type eq 'randomizetry')) {
669: my $tries = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
670: if ($tries) {
671: $rndseed += $tries;
672: }
1.480 raeburn 673: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 674: }
1.374 albertel 675: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
676: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 677: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 678: srand(time);
679: $rndseed=int(rand(2100000000));
1.284 albertel 680: $env{'form.rndseed'}=$rndseed;
681: delete($env{'form.resetdata'});
682: delete($env{'form.newrandomization'});
1.159 albertel 683: }
1.488 www 684: $rndseed=~s/\,/\:/g;
685: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 686: if (defined($rndseed)) {
687: my ($c1,$c2)=split(/\:/,$rndseed);
688: unless ($c2) { $c2=0; }
689: unless (($c1==int($c1)) && ($c2==int($c2))) {
690: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
691: }
1.187 albertel 692: }
1.247 albertel 693: if ($Apache::lonhomework::history{'resource.CODE'}) {
694: $rndseed=&Apache::lonnet::rndseed();
695: }
1.479 raeburn 696: $set_safespace = 1;
697: } elsif ($questiontype eq 'randomizetry') {
698: if ($target eq 'analyze') {
699: if (defined($env{'form.grade_rndseed'})) {
700: $rndseed = $env{'form.grade_rndseed'};
701: }
702: }
703: unless (($target eq 'analyze') && (defined($rndseed))) {
704: $rndseed=&Apache::lonnet::rndseed();
1.512.2.9 raeburn 705: my $partfortries = $Apache::inputtags::part;
706: if (ref($probpartlist) eq 'ARRAY') {
707: if ((@{$probpartlist} == 1) && ($probpartlist->[0] ne $Apache::inputtags::part)) {
708: $partfortries = $probpartlist->[0];
709: }
710: }
711: my $curr_try = $Apache::lonhomework::history{"resource.$partfortries.tries"};
1.479 raeburn 712: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
713: $curr_try ++;
714: }
715: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
716: $rndseed = $1;
717: }
718: if ($curr_try) {
1.512.2.9 raeburn 719: my $reqtries = &Apache::lonnet::EXT("resource.$partfortries.randomizeontries");
1.479 raeburn 720: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
721: my $inc = int(($curr_try-1)/$reqtries);
722: $rndseed += $inc;
723: } else {
724: $rndseed += $curr_try;
725: }
726: }
727: }
728: $set_safespace = 1;
1.512.2.9 raeburn 729: if ($target eq 'grade') {
730: $Apache::lonhomework::rawrndseed = $rndseed;
731: }
1.479 raeburn 732: }
733: if ($set_safespace) {
734: if ($safeeval) {
735: &Apache::lonxml::debug("Setting rndseed to $rndseed");
736: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
737: }
738: }
739: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
740: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 741: }
742: return $rndseed;
1.105 albertel 743: }
744:
1.268 albertel 745: sub remember_problem_state {
746: return '
1.284 albertel 747: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
748: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
749: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 750: }
751:
1.487 www 752: sub problem_edit_action_button {
753: my ($name,$action,$accesskey,$text,$flag)=@_;
754: my $actionscript="setmode(this.form,'$action')";
755: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
756: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
757: }
758:
1.423 www 759: sub problem_edit_buttons {
1.487 www 760: my ($mode)=@_;
1.512.2.11 raeburn 761: # Buttons that save
762: my $result = '<div style="float:right">';
763: if ($mode eq 'editxml') {
764: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
765: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
766: } else {
767: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
768: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
769: }
770: $result.="\n</div>\n";
1.487 www 771: # Buttons that do not save
1.512.2.11 raeburn 772: $result .= '<div>'.
1.487 www 773: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
774: if ($mode eq 'editxml') {
775: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
776: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
1.512.2.11 raeburn 777: if ($env{'environment.nocodemirror'}) {
778: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
779: }
1.487 www 780: } else {
781: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
782: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
783: }
784: $result.="\n</div>";
785: return $result;
1.423 www 786: }
787:
788: sub problem_edit_header {
1.512.2.11 raeburn 789: my ($mode)=@_;
790: my $return = '<input type="hidden" name="submitted" value="edit" />'.
1.487 www 791: &remember_problem_state('edit').'
1.512.2.11 raeburn 792: <div class="LC_edit_problem_header">
793: <div class="LC_edit_problem_header_title">
794: '.&mt('Problem Editing').$mode.&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
795: </div><div class="LC_edit_actionbar" id="actionbar">'.
796: '<input type="hidden" name="problemmode" value="saveedit" />'.
797: &problem_edit_buttons();
798:
799: $return .= '</div></div>' . &Apache::lonxml::message_location();
800: $return .= '<link rel="stylesheet" href="/adm/codemirror/codemirror-combined.css" />
801: <script type="text/javascript" src="/adm/codemirror/codemirror-compressed-colorful.js"></script>';
802:
803: $return .= '<script type="text/javascript" src="/adm/jQuery/addons/jquery-scrolltofixed.js"></script>
804: <script type="text/javascript">
805: // unless internet explorer
806: if (!(window.navigator.appName == "Microsoft Internet Explorer" && (document.documentMode || document.compatMode))){
807: $(document).ready(
808: function() {
809: $(\'.LC_edit_actionbar\').scrollToFixed(
810: {
811: fixed: function(){
812: //$(this).find(\'.LC_edit_actionbar\').css(\'height\', \'31px\');
813: $(this).find(\'.LC_edit_actionbar\');
814: }
815: }
816: );
817: }
818: );
819: }
820: </script>
821: <table id="LC_edit_problem_colorful" border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
822: return $return;
1.105 albertel 823: }
824:
1.512.2.11 raeburn 825:
1.105 albertel 826: sub problem_edit_footer {
1.512.2.11 raeburn 827: my $resource = $env{'request.ambiguous'};
1.412 albertel 828: return '</td></tr></table><br />
829: <div class="LC_edit_problem_footer">
1.453 bisitz 830: <hr />'.
1.423 www 831: &problem_edit_buttons().'
1.459 bisitz 832: <hr style="clear:both;" />
1.512.2.11 raeburn 833: <script type="text/javascript">
834: restoreState("'.$resource.'");
835: restoreScrollPosition("'.$resource.'");
836: </script>
1.412 albertel 837: </div>
838: '.
1.342 albertel 839: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 840: }
841:
1.235 albertel 842: sub option {
843: my ($value,$name) = @_;
844: my $result ="<option value='".$value."' ";
1.284 albertel 845: if ($env{'form.'.$name} eq $value) {
1.235 albertel 846: $result.=" selected='on' ";
847: }
848: $result.='>';
849: return $result;
850: }
851:
1.105 albertel 852: sub problem_web_to_edit_header {
1.159 albertel 853: my ($rndseed)=@_;
1.406 albertel 854: my $result .= '<div class="LC_edit_problem_header">';
855:
856: if (!$Apache::lonhomework::parsing_a_task) {
857: $result .=
858: '<div class="LC_edit_problem_header_title">'.
859: &mt('Problem Testing').
860: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
861: '</div>';
862: } else {
863: $result .=
864: '<div class="LC_edit_problem_header_title">'.
865: &mt('Task Testing').
866: '</div>';
867: }
868:
1.315 albertel 869: my $show_all_foils_text =
870: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 871: &mt('Show All Instances')
872: : &mt('Show All Foils');
1.315 albertel 873:
1.452 bisitz 874: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
875: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 876: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 877: $show_all.= ' /> '.$show_all_foils_text
878: .'</label></span>';
1.406 albertel 879:
880:
1.384 albertel 881:
1.406 albertel 882: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 883: if (!$Apache::lonhomework::parsing_a_task) {
884: $result.="
1.406 albertel 885: <div class='LC_edit_problem_header_row1'>
886: <span class=\"LC_nobreak\">
1.405 albertel 887: ".&mt("Problem Status:")."
1.235 albertel 888: <select name='problemstate'>
1.270 albertel 889: <option value=''></option>
1.235 albertel 890: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
891: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
892: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
893: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
894: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
895: </select>
1.406 albertel 896: </span>
897: <span class=\"LC_nobreak\">
1.405 albertel 898: ".&mt("Problem Type:")."
1.235 albertel 899: <select name='problemtype'>
1.270 albertel 900: <option value=''></option>
1.512.2.1 raeburn 901: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 902: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 903: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 904: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
905: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
906: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 907: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 908: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 909: </select>
1.406 albertel 910: </span>
911: $show_all
912: </div>
913: <div class='LC_edit_problem_header_row2'>
914: <span class=\"LC_nobreak\">
1.405 albertel 915: ".&mt("Feedback Mode:")."
1.235 albertel 916: <select name='problemstatus'>
917: <option value=''></option>
1.242 albertel 918: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.512.2.6 raeburn 919: ".&option('no', 'problemstatus').&mt("Don't Show Incorrect/Correct Feedback")."</option>
1.405 albertel 920: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 921: </select>
1.406 albertel 922: </span>
923: ";
924:
1.376 albertel 925: } elsif ($Apache::lonhomework::parsing_a_task) {
926: $result.="
1.406 albertel 927: <div class='LC_edit_problem_header_row1'>
928: <span class=\"LC_nobreak\">
1.405 albertel 929: ".&mt("Problem Status:")."
1.376 albertel 930: <select name='problemstate'>
931: <option value=''></option>
932: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
933: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
934: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
935: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
936: </select>
1.406 albertel 937: </span>
938: $show_all
939: ";
940: }
941: $result.='
942: <span class="LC_nobreak">
943: '.&mt('Apply style file: ').'
944: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
945: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
946: </span>
1.422 www 947: </div>
948: <div class="LC_edit_problem_header_row1">'.
949: &Apache::lonxml::renderingoptions().'
1.406 albertel 950: </div>
951: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
952: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
953: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
954: </div>
1.453 bisitz 955: <hr />
1.406 albertel 956: <div class="LC_edit_problem_header_randomize_row">
957: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
958: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 959: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 960: $rndseed.'"
961: onchange="javascript:document.lonhomework.changerandseed.click()" />';
962:
963: if (!$Apache::lonhomework::parsing_a_task) {
964: my $numtoanalyze=$env{'form.numtoanalyze'};
965: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 966: $result .= '<span class="LC_nobreak">'.
967: &mt('[_1] for [_2] versions.',
1.416 raeburn 968: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 969: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
970: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 971: $numtoanalyze.'" size="5" />').
972: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
973: '</span>';
974:
1.313 albertel 975: }
1.406 albertel 976:
977: $result.='
978: </div>
1.453 bisitz 979: <hr />
1.447 bisitz 980: <div>';
1.416 raeburn 981: $result.='<input type="hidden" name="problemmode" value="view" />';
982: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
983: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
984: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
985: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 986: $result.='
987: </div>
1.453 bisitz 988: <hr />
1.409 albertel 989: '.&Apache::lonxml::message_location().'
1.406 albertel 990: </div>';
1.159 albertel 991: return $result;
1.48 albertel 992: }
993:
1.65 albertel 994: sub initialize_storage {
1.357 albertel 995: my ($given_symb) = @_;
1.353 albertel 996: undef(%Apache::lonhomework::results);
997: undef(%Apache::lonhomework::history);
1.357 albertel 998: my ($symb,$courseid,$domain,$name) =
1.367 albertel 999: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 1000:
1001: # anonymous users (CODEd exams) have no data
1002: if ($name eq 'anonymous'
1003: && !defined($domain)) {
1004: return;
1005: }
1006:
1.333 albertel 1007: if ($env{'request.state'} eq 'construct'
1008: || $symb eq ''
1009: || $Apache::lonhomework::type eq 'practice') {
1010:
1011: my $namespace = $symb || $env{'request.uri'};
1012: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 1013: ($env{'form.resetdata'} eq &mt('New Problem Variation')
1014: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 1015: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1016: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
1017: &Apache::lonxml::debug("Attempt reset");
1018: }
1.159 albertel 1019: %Apache::lonhomework::history=
1.333 albertel 1020: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.512.2.9 raeburn 1021: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1022: &Apache::lonxml::debug("Return message of $temp");
1023: } else {
1024: %Apache::lonhomework::history=
1025: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1026: }
1.353 albertel 1027:
1.159 albertel 1028: #ignore error conditions
1.512.2.9 raeburn 1029: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1030: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 1031: }
1032:
1.435 jms 1033: =pod
1034:
1035: =item finalize_storage()
1036:
1.512.2.9 raeburn 1037: Stores away the result hash to a student's environment;
1038: checks form.grade_ for specific values, otherwise stores
1039: to the running user's environment.
1040:
1041: &check_correctness_changes() is called in two circumstances
1042: in which the results hash is to be stored permanently, for
1043: grading triggered by a student's submission, where feedback on
1044: correctness is to be provided to the student.
1045:
1046: 1. Immediately prior to storing the results hash
1047:
1048: To handle the case where a student's submission (and award) were
1049: stored after history was retrieved in &initialize_storage(), e.g.,
1050: if a student submitted answers in quick succession (e.g., from
1051: multiple tabs). &Apache::inputtags::hidealldata() is called for
1052: any parts with out-of-order storage (i.e., correct then incorrect,
1053: where awarded >= 1 when correct).
1054:
1055: 2. Immediately after storing the results hash
1056:
1057: To handle the case where lond on the student's homeserver returns
1058: delay:N -- where N is the number of transactions between the last
1059: retrieved in &initialize_storage() and the last stored immediately
1060: before permanent storage of the current transaction via
1061: lond::store_handler(). &Apache::grades::makehidden() is called
1062: for any parts with out-of-order storage (i.e., correct then incorrect,
1063: where awarded >= 1 when correct).
1064:
1065: Will call &store_aggregates() to increment totals for attempts,
1066: students, and corrects, if running user has student role.
1.435 jms 1067:
1068: =cut
1069:
1070:
1.65 albertel 1071: sub finalize_storage {
1.357 albertel 1072: my ($given_symb) = @_;
1.159 albertel 1073: my $result;
1.289 albertel 1074: if (%Apache::lonhomework::results) {
1.323 albertel 1075: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
1076: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 1077: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1078: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 1079: if ($env{'request.state'} eq 'construct'
1080: || $symb eq ''
1081: || $Apache::lonhomework::type eq 'practice') {
1082: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 1083: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 1084: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 1085: $namespace,'',$domain,$name);
1.159 albertel 1086: &Apache::lonxml::debug('Construct Store return message:'.$result);
1087: } else {
1.512.2.9 raeburn 1088: my ($laststore,$checkedparts,@parts,%postcorrect);
1089: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1090: (!$Apache::lonhomework::scantronmode) && (!defined($env{'form.grade_symb'})) &&
1091: (!defined($env{'form.grade_courseid'}))) {
1092: if ($Apache::lonhomework::history{'version'}) {
1093: $laststore = $Apache::lonhomework::history{'version'}.'='.
1094: $Apache::lonhomework::history{'timestamp'};
1095: } else {
1096: $laststore = '0=0';
1097: }
1098: my %record = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1099: if ($record{'version'}) {
1100: my ($newversion,$oldversion,$oldtimestamp);
1101: if ($Apache::lonhomework::history{'version'}) {
1102: $oldversion = $Apache::lonhomework::history{'version'};
1103: $oldtimestamp = $Apache::lonhomework::history{'timestamp'};
1104: } else {
1105: $oldversion = 0;
1106: $oldtimestamp = 0;
1107: }
1108: if ($record{'version'} > $oldversion) {
1109: if ($record{'timestamp'} >= $oldtimestamp) {
1110: $laststore = $record{'version'}.'='.$record{'timestamp'};
1111: $newversion = $record{'version'} + 1;
1112: $checkedparts = 1;
1113: foreach my $key (keys(%Apache::lonhomework::results)) {
1114: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1115: my $part = $1;
1116: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1117: push(@parts,$part);
1118: }
1119: }
1120: }
1121: if (@parts) {
1122: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1123: \%record,\@parts,$newversion,
1124: $oldversion);
1125: if (@parts_to_hide) {
1126: foreach my $part (@parts_to_hide) {
1127: $postcorrect{$part} = 1;
1128: &Apache::inputtags::hidealldata($part);
1129: }
1130: }
1131: }
1132: }
1133: }
1134: }
1135: }
1.159 albertel 1136: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
1.512.2.9 raeburn 1137: $symb,$courseid,$domain,$name,$laststore);
1138: if ($result =~ /^delay\:(\d+)$/) {
1139: my $numtrans = $1;
1140: my ($oldversion) = split(/=/,$laststore);
1141: if ($numtrans) {
1142: my $newversion = $oldversion + 1 + $numtrans;
1143: my @possparts;
1144: if ($checkedparts) {
1145: foreach my $part (@parts) {
1146: unless ($postcorrect{$part}) {
1147: push(@possparts,$part);
1148: }
1149: }
1150: } else {
1151: foreach my $key (keys(%Apache::lonhomework::results)) {
1152: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1153: my $part = $1;
1154: unless ($postcorrect{$part}) {
1155: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1156: push(@possparts,$part);
1157: }
1158: }
1159: }
1160: }
1161: }
1162: if (@possparts) {
1163: my %newrecord = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1164: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1165: \%newrecord,\@possparts,$newversion,
1166: $oldversion);
1167: if (@parts_to_hide) {
1168: my $partslist = join(',',@parts_to_hide);
1169: &Apache::grades::makehidden($newversion,$partslist,\%newrecord,$symb,$domain,$name,1);
1170: }
1171: }
1172: }
1173: }
1.159 albertel 1174: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 1175: &store_aggregates($symb,$courseid);
1.159 albertel 1176: }
1.323 albertel 1177: } else {
1178: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 1179: }
1.159 albertel 1180: return $result;
1.65 albertel 1181: }
1182:
1.435 jms 1183: =pod
1184:
1.512.2.9 raeburn 1185: =item check_correctness_changes()
1186:
1187: For all parts for which current results contain a solved status
1188: of "incorrect_attempted", check if there was a transaction in which
1189: solved was set to "correct_by_student" in the time since the last
1190: transaction (retrieved when &initialize_storage() was called i.e.,
1191: when &start_problem() was called), unless:
1192: (a) questiontype parameter is set to survey or anonymous survey (+/- credit)
1193: (b) problemstatus is set to no or no_feedback_ever
1194: If such a transaction exists, and did not occur after "reset status"
1195: by a user with grading privileges, then the current transaction is an
1196: example of an out-of-order transaction (i.e., incorrect occurring after
1197: correct). Accordingly, the current transaction should be hidden.
1198:
1199: =cut
1200:
1201:
1202: sub check_correctness_changes {
1203: my ($symb,$courseid,$domain,$name,$record,$parts,$newversion,$oldversion) = @_;
1204: my @parts_to_hide;
1205: unless ((ref($record) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
1206: return @parts_to_hide;
1207: }
1208: if (@{$parts}) {
1209: my $usec;
1210: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1211: ($env{'request.course.id'} eq $courseid)) {
1212: $usec = $env{'request.course.sec'};
1213: } else {
1214: $usec = &Apache::lonnet::getsection($domain,$name,$courseid);
1215: }
1216: foreach my $id (@{$parts}) {
1217: next if (($Apache::lonhomework::results{'resource.'.$id.'.type'} =~ /survey/) ||
1218: (&Apache::lonnet::EXT("resource.$id.problemstatus",$symb,
1219: $domain,$name,$usec,undef,$courseid) =~ /^no/));
1220: my $reset;
1221: for (my $i=$newversion-1; $i>=$oldversion; $i--) {
1222: if (($record->{$i.':resource.'.$id.'.regrader'}) &&
1223: ($record->{$i.':resource.'.$id.'.tries'} eq '') &&
1224: ($record->{$i.':resource.'.$id.'.award'} eq '')) {
1225: $reset = 1;
1226: } elsif (($record->{$i.":resource.$id.solved"} eq 'correct_by_student') &&
1227: ($record->{$i.":resource.$id.awarded"} >= 1)) {
1228: unless ($reset) {
1229: push(@parts_to_hide,$id);
1230: last;
1231: }
1232: }
1233: }
1234: }
1235: }
1236: return @parts_to_hide;
1237: }
1238:
1239: =pod
1240:
1.435 jms 1241: item store_aggregates()
1242:
1243: Sends hash of values to be incremented in nohist_resourcetracker.db
1244: for the course. Increments total number of attempts, unique students
1245: and corrects for each part for an instance of a problem, as appropriate.
1246:
1247: =cut
1248:
1.285 raeburn 1249: sub store_aggregates {
1250: my ($symb,$courseid) = @_;
1.479 raeburn 1251: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 1252: my @parts;
1.288 albertel 1253: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
1254: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 1255: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 1256: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 1257: push(@parts, $1);
1.285 raeburn 1258: }
1259: }
1.286 albertel 1260: foreach my $part (@parts) {
1.470 raeburn 1261: if ($env{'request.role'} =~/^st/) {
1262: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
1263: eq 'APPROX_ANS' ||
1264: $Apache::lonhomework::results{'resource.'.$part.'.award'}
1265: eq 'EXACT_ANS') {
1266: $aggregate{$symb."\0".$part."\0correct"} = 1;
1267: }
1268: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1269: $aggregate{$symb."\0".$part."\0users"} = 1;
1270: } else {
1271: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1272: if ($last_reset) {
1273: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1274: $aggregate{$symb."\0".$part."\0users"} = 1;
1275: }
1276: }
1277: }
1278: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 1279: }
1.470 raeburn 1280: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 1281: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
1282: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
1283: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
1284: $randtrycounter{$symb."\0".$part} = 1;
1285: } else {
1286: $anoncounter{$symb."\0".$part} = 1;
1287: }
1.470 raeburn 1288: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
1289: if ($needsrelease) {
1290: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
1291: if ($curr_required eq '') {
1.471 raeburn 1292: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1293: } else {
1294: my ($currmajor,$currminor) = split(/\./,$curr_required);
1295: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
1296: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 1297: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1298: }
1.292 raeburn 1299: }
1300: }
1.285 raeburn 1301: }
1302: }
1.512.2.9 raeburn 1303: if (keys(%aggregate) > 0) {
1.289 albertel 1304: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 1305: $cdomain,$cname);
1306: }
1.472 raeburn 1307: if (keys(%anoncounter) > 0) {
1.481 raeburn 1308: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
1309: $cdomain,$cname);
1.472 raeburn 1310: }
1.479 raeburn 1311: if (keys(%randtrycounter) > 0) {
1.481 raeburn 1312: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
1313: $cdomain,$cname);
1.479 raeburn 1314: }
1.292 raeburn 1315: }
1.289 albertel 1316:
1.65 albertel 1317: sub checkout_msg {
1.211 albertel 1318: my %lt=&Apache::lonlocal::texthash(
1319: 'resource'=>'The resource needs to be checked out',
1320: '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.',
1321: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
1.512.2.1 raeburn 1322: 'checkout'=>'Check out Exam for Viewing',
1323: 'checkout?'=>'Check out Exam?');
1.352 albertel 1324: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 1325: return (<<ENDCHECKOUT);
1.211 albertel 1326: <h2>$lt{'resource'}</h2>
1327: <p>$lt{'id_expln'}</p>
1.449 bisitz 1328: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 1329: <form name="checkout" method="post" action="$uri">
1.91 albertel 1330: <input type="hidden" name="doescheckout" value="yes" />
1.512.2.4 raeburn 1331: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onclick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 1332: </form>
1333: ENDCHECKOUT
1334: }
1335:
1.252 albertel 1336: sub firstaccess_msg {
1.253 albertel 1337: my ($time,$symb)=@_;
1.414 albertel 1338: my $result;
1339: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1340: if ($interval[1] eq 'map') {
1341: my ($map)=&Apache::lonnet::decode_symb($symb);
1342: my $foldertitle=&Apache::lonnet::gettitle($map);
1343:
1344: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 1345: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
1346: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1347: ,$foldertitle,$time)."</p>";
1.414 albertel 1348: } elsif ($interval[1] eq 'course') {
1349: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 1350: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 1351: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 1352: ,$course,$time)."</p>";
1.414 albertel 1353: } else {
1354: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1355: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1356: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1357: ,$title,$time)."</p>";
1.414 albertel 1358: }
1.352 albertel 1359: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1360: my $buttontext = &mt('Show Resource');
1361: my $timertext = &mt('Start Timer?');
1.414 albertel 1362: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1363: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1364: <input type="hidden" name="markaccess" value="yes" />
1.512.2.4 raeburn 1365: <input type="button" name="accessbutton" value="$buttontext" onclick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1366: </form>
1367: ENDCHECKOUT
1.414 albertel 1368: return $result;
1.252 albertel 1369: }
1370:
1.204 albertel 1371: sub init_problem_globals {
1372: my ($type)=@_;
1373: #initialize globals
1.308 foxr 1374: # For problems, we start out in part 0 (outside a <part> tag).
1375: # and part 0 is used to describe the main body of the <problem>
1376: #
1.204 albertel 1377: if ($type eq 'problem') {
1378: $Apache::inputtags::part='0';
1379: @Apache::inputtags::partlist=('0');
1.405 albertel 1380: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1381: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1382:
1.266 albertel 1383: } elsif ($type eq 'library') {
1.204 albertel 1384: $Apache::inputtags::part='';
1385: @Apache::inputtags::partlist=();
1.405 albertel 1386: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1387: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1388:
1.304 albertel 1389: } elsif ($type eq 'Task') {
1390: $Apache::inputtags::part='0';
1391: @Apache::inputtags::partlist=('0');
1.405 albertel 1392: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1393: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1394: }
1.477 www 1395: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1396: @Apache::inputtags::responselist = ();
1397: @Apache::inputtags::importlist = ();
1398: @Apache::inputtags::previous=();
1399: @Apache::inputtags::previous_version=();
1.512.2.10 raeburn 1400: $Apache::inputtags::leniency='';
1.204 albertel 1401: $Apache::structuretags::printanswer='No';
1402: @Apache::structuretags::whileconds=();
1403: @Apache::structuretags::whilebody=();
1404: @Apache::structuretags::whileline=();
1405: $Apache::lonhomework::scantronmode=0;
1406: undef($Apache::lonhomework::name);
1.358 albertel 1407: undef($Apache::lonhomework::default_type);
1408: undef($Apache::lonhomework::type);
1.204 albertel 1409: }
1410:
1411: sub reset_problem_globals {
1412: my ($type)=@_;
1413: undef(%Apache::lonhomework::history);
1414: undef(%Apache::lonhomework::results);
1415: undef($Apache::inputtags::part);
1.512.2.10 raeburn 1416: undef($Apache::inputtags::leniency);
1.498 raeburn 1417: if ($type eq 'Task') {
1418: undef($Apache::inputtags::slot_name);
1.512.2.9 raeburn 1419: } elsif ($type eq 'problem') {
1420: undef($Apache::lonhomework::rawrndseed);
1.498 raeburn 1421: }
1.208 albertel 1422: #don't undef this, lonhomework.pm takes care of this, we use this to
1423: #detect if we try to do 2 problems in one file
1424: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1425: undef($Apache::lonhomework::name);
1.358 albertel 1426: undef($Apache::lonhomework::default_type);
1427: undef($Apache::lonhomework::type);
1428: undef($Apache::lonhomework::scantronmode);
1429: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1430: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1431: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1432: }
1433:
1.241 albertel 1434: sub set_problem_state {
1.240 albertel 1435: my ($part)=@_;
1.284 albertel 1436: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1437: $Apache::lonhomework::history{"resource.$part.solved"}=
1438: 'correct_by_student';
1439: }
1440: }
1441:
1.241 albertel 1442: sub get_problem_status {
1443: my ($part)=@_;
1.267 albertel 1444: my $problem_status;
1.284 albertel 1445: if ($env{'request.state'} eq 'construct' &&
1446: defined($env{'form.problemstatus'})) {
1447: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1448: } else {
1449: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1450: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1451: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1452: }
1453: return $problem_status;
1454: }
1455:
1.9 albertel 1456: sub start_problem {
1.326 albertel 1457: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1458:
1.311 foxr 1459: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1460: if (!$Apache::lonxml::metamode) {
1461: &Apache::lonxml::startredirection();
1462: }
1.311 foxr 1463:
1.308 foxr 1464: # Problems don't nest and we don't allow more than one <problem> in
1465: # a .problem file.
1466: #
1.184 albertel 1467: if ( $Apache::inputtags::part ne '' ||
1468: $Apache::lonhomework::parsing_a_problem) {
1469: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1470: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1471: return '';
1472: }
1.184 albertel 1473:
1474: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1475: &init_problem_globals('problem');
1.166 albertel 1476:
1.284 albertel 1477: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1478: $Apache::lonhomework::scantronmode=1;
1479: }
1.161 albertel 1480:
1.159 albertel 1481: if ($target ne 'analyze') {
1.415 raeburn 1482: my $type = &Apache::lonnet::EXT('resource.0.type');
1483: $Apache::lonhomework::type=$type;
1.284 albertel 1484: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1485: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1486: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1487: }
1.332 albertel 1488: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1489: }
1.164 albertel 1490: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1491: my $uri=$env{'request.uri'};
1.159 albertel 1492: if ($uri=~/\.(\w+)$/) {
1493: $Apache::lonhomework::type=$1;
1494: &Apache::lonxml::debug("Using type of $1");
1495: } else {
1496: $Apache::lonhomework::type='problem';
1497: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1498: }
1.87 albertel 1499: }
1.301 albertel 1500: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1501:
1.363 albertel 1502: &initialize_storage();
1.389 albertel 1503: if ($target ne 'analyze'
1504: && $env{'request.state'} eq 'construct') {
1505: &set_problem_state('0');
1506: }
1507:
1.366 albertel 1508: if ($target eq 'web') {
1509: &Apache::lonxml::debug(" grading history ");
1510: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1511: }
1.363 albertel 1512:
1.159 albertel 1513: #added vars to the scripting enviroment
1.213 albertel 1514: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1515: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1516: &Apache::run::run($expression,$safeeval);
1.159 albertel 1517: my $status;
1518: my $accessmsg;
1.508 raeburn 1519: my $resource_due;
1.159 albertel 1520:
1.343 albertel 1521: my $name= &get_resource_name($parstack,$safeeval);
1.512.2.9 raeburn 1522: my ($result,$form_tag_start,$slot_name,$slot,$probpartlist);
1.506 raeburn 1523:
1524: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1525: $target eq 'tex') {
1526: if ($env{'form.markaccess'}) {
1527: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1.512.2.13.2. (raeburn 1528:): my ($timelimit) = ($interval[0] =~ /^(\d+)/);
1529:): &Apache::lonnet::set_first_access($interval[1],$timelimit);
1.506 raeburn 1530: }
1531:
1532: ($status,$accessmsg,$slot_name,$slot) =
1533: &Apache::lonhomework::check_slot_access('0','problem');
1534: push (@Apache::inputtags::status,$status);
1535: }
1536:
1.354 albertel 1537: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1538: || $target eq 'edit') {
1.512.2.9 raeburn 1539: ($result,$form_tag_start,$probpartlist) =
1.350 albertel 1540: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1541: $name);
1.512.2.9 raeburn 1542: } elsif (($target eq 'grade') && ($Apache::lonhomework::type eq 'randomizetry')) {
1543: my ($symb)= &Apache::lonnet::whichuser();
1544: my $navmap = Apache::lonnavmaps::navmap->new();
1545: if (ref($navmap)) {
1546: my $res = $navmap->getBySymb($symb);
1547: if (ref($res)) {
1548: $probpartlist = $res->parts();
1549: }
1550: }
1.350 albertel 1551: }
1552:
1.284 albertel 1553: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1554:
1.479 raeburn 1555: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1556: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1557: $target eq 'tex') {
1.479 raeburn 1558:
1.159 albertel 1559: #handle rand seed in construction space
1.512.2.9 raeburn 1560: my $rndseed=&setup_rndseed($safeeval,$target,$probpartlist);
1561: if (($target eq 'grade') && &Apache::response::submitted()) {
1562: if ($Apache::lonhomework::type eq 'randomizetry') {
1563: $Apache::lonhomework::results{'resource.0.rndseed'}=$rndseed;
1564: } else {
1565: my @parts;
1566: if (ref($probpartlist) eq 'ARRAY') {
1567: @parts = @{$probpartlist};
1568: }
1569: unless (@parts) {
1570: $Apache::lonhomework::results{'resource.0.rndseed'}=$Apache::lonhomework::rawrndseed;
1571: }
1572: }
1573: }
1.367 albertel 1574: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 1575:
1.333 albertel 1576: if ($env{'request.state'} ne "construct" &&
1577: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1578: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1579: $rndseed.'" />'.
1580: '<input type="submit" name="resetdata"
1581: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1582: if (exists($env{'form.username'})) {
1583: $form_tag_start.=
1.164 albertel 1584: '<input type="hidden" name="username"
1.284 albertel 1585: value="'.$env{'form.username'}.'" />';
1.334 albertel 1586: }
1.462 raeburn 1587: if ($env{'request.role.adv'}) {
1588: $form_tag_start.= ' <label class="LC_nobreak">'
1589: .'<input type="checkbox" name="showallfoils"';
1590: if (defined($env{'form.showallfoils'})) {
1591: $form_tag_start.=' checked="checked"';
1592: }
1593: $form_tag_start.= ' /> '
1594: .&mt('Show All Foils')
1595: .'</label>';
1596: }
1.417 www 1597: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1598: $form_tag_start.=&practice_problem_header();
1.417 www 1599: }
1.462 raeburn 1600: $form_tag_start.='<hr />';
1.479 raeburn 1601: } elsif (($env{'request.state'} ne "construct") &&
1602: ($Apache::lonhomework::type eq 'randomizetry') &&
1603: ($status eq 'CAN_ANSWER')) {
1604: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1605: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1606: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1607: }
1.324 albertel 1608:
1.159 albertel 1609: my $expression='$external::datestatus="'.$status.'";';
1610: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1611: &Apache::run::run($expression,$safeeval);
1612: &Apache::lonxml::debug("Got $status");
1.324 albertel 1613:
1.159 albertel 1614: if (( $status eq 'CLOSED' ) ||
1615: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1616: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1617: ( $status eq 'BANNED') ||
1.216 albertel 1618: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1619: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1620: ( $status eq 'NOTRESERVABLE') ||
1621: ( $status eq 'RESERVABLE') ||
1622: ( $status eq 'RESERVABLE_LATER') ||
1.216 albertel 1623: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1624: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1625: $style);
1.159 albertel 1626: if ( $target eq "web" ) {
1.343 albertel 1627: my $msg;
1.159 albertel 1628: if ($status eq 'UNAVAILABLE') {
1.504 golterma 1629: $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1.441 raeburn 1630: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.504 golterma 1631: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1.499 raeburn 1632: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1633: ($status eq 'NOTRESERVABLE')) {
1.504 golterma 1634: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1.253 albertel 1635: } elsif ($status ne 'NOT_YET_VIEWED') {
1.504 golterma 1636: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1.499 raeburn 1637: }
1.216 albertel 1638: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1639: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1640: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1641: $msg.=&checkout_msg();
1.252 albertel 1642: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1643: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1644: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1645: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.499 raeburn 1646: } elsif ($status eq 'RESERVABLE') {
1647: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1648: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1649: '<br />'.
1650: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1651: } elsif ($status eq 'RESERVABLE_LATER') {
1652: $msg.=&mt('Window to make a reservation will open [_1].',
1653: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1654: } elsif ($status eq 'NOTRESERVABLE') {
1655: $msg.=&mt('Not available to make a reservation.');
1.159 albertel 1656: }
1657: $result.=$msg.'<br />';
1658: } elsif ($target eq 'tex') {
1.332 albertel 1659: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1660: : '\begin{minipage}{\textwidth}';
1.443 foxr 1661: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1662: $startminipage.'\vskip 0 mm';
1.159 albertel 1663: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1664: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1665: } else {
1.211 albertel 1666: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1667: }
1668: }
1.324 albertel 1669: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1670: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1671: $style);
1.324 albertel 1672: if ($target eq 'web') {
1.375 albertel 1673: $result .=
1674: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1675: } elsif ($target eq 'grade') {
1676: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1677: 'problem');
1678: }
1.159 albertel 1679: } elsif ($target eq 'web') {
1.508 raeburn 1680: if ($status eq 'CAN_ANSWER') {
1681: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1682: if ($slot_name ne '') {
1683: my $checked_in =
1684: $Apache::lonhomework::history{'resource.0.checkedin'};
1685: if ($checked_in eq '') {
1686: # unproctored slot access, self checkin
1687: &Apache::bridgetask::check_in('problem',undef,undef,
1688: $slot_name);
1689: $checked_in =
1690: $Apache::lonhomework::results{"resource.0.checkedin"};
1691: }
1692: if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1693: if ($slot->{'starttime'} < time()) {
1694: if (!$resource_due) {
1695: $resource_due = $slot->{'endtime'};
1696: } elsif ($slot->{'endtime'} < $resource_due) {
1697: $resource_due = $slot->{'endtime'};
1698: }
1699: }
1700: }
1701: }
1702: if ($resource_due) {
1703: my $time_left = $resource_due - time();
1704: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1705: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1706: }
1707: }
1708: }
1.368 albertel 1709: $result.="\n $form_tag_start \t".
1.227 albertel 1710: '<input type="hidden" name="submitted" value="yes" />';
1711: # create a page header and exit
1.284 albertel 1712: if ($env{'request.state'} eq "construct") {
1713: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1714: if ($Apache::lonhomework::type eq 'practice') {
1715: $result.= '<input type="submit" name="resetdata" '.
1716: 'value="'.&mt('New Problem Variation').'" />'.
1717: &practice_problem_header().'<hr />';
1718: }
1.227 albertel 1719: }
1720: # if we are viewing someone else preserve that info
1.284 albertel 1721: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1722: foreach my $field ('symb','courseid','domain','username') {
1723: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1724: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1725: }
1.479 raeburn 1726: foreach my $field ('trial','questiontype') {
1727: if ($env{"form.grade_$field"} ne '') {
1728: $result .= '<input type="hidden" name="grade_'.$field.
1729: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1730: }
1731: }
1.159 albertel 1732: }
1.490 raeburn 1733: if ($env{'form.grade_imsexport'}) {
1734: $result = '';
1735: }
1.159 albertel 1736: } elsif ($target eq 'tex') {
1.319 foxr 1737: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 1738: $result .= &select_metadata_hyphenation();
1739:
1.319 foxr 1740:
1.99 sakharuk 1741: }
1.159 albertel 1742: } elsif ($target eq 'edit') {
1.343 albertel 1743: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1744: $Apache::lonxml::warnings_error_header=
1745: &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 1746: my $temp=&Apache::edit::insertlist($target,$token);
1747: $result.=$temp;
1748: } elsif ($target eq 'modified') {
1749: $result=$token->[4];
1750: } else {
1751: # page_start returned a starting result, delete it if we don't need it
1752: $result = '';
1.99 sakharuk 1753: }
1.159 albertel 1754: return $result;
1.9 albertel 1755: }
1756:
1757: sub end_problem {
1.159 albertel 1758: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1759: my $result;
1.310 foxr 1760:
1.321 albertel 1761: if (!$Apache::lonxml::metamode) {
1762: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1763: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1764: }
1.319 foxr 1765:
1766: if ($target eq 'tex') {
1.321 albertel 1767: # Figure out the front matter and replace the
1768: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1769: # this in end_problem because whether or not we display due
1770: # dates depends on whether due dates have already been
1771: # displayed in the problem parts.
1772:
1.319 foxr 1773: my $frontmatter = '';
1774: my $startminipage = '';
1775: if (not $env{'form.problem_split'}=~/yes/) {
1776: $startminipage = '\begin{minipage}{\textwidth}';
1777: }
1778: my $id = $Apache::inputtags::part;
1779: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1780: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.512.2.9 raeburn 1781: my @packages = split(/,/,$packages);
1.319 foxr 1782: my $allow_print_points = 0;
1783: foreach my $partial_key (@packages) {
1784: if ($partial_key=~m/^part_0$/) {
1785: $allow_print_points=1;
1786: }
1787: }
1788: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1789: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1790: if (lc($env{'course.'.$env{'request.course.id'}.
1791: '.disableexampointprint'}) eq 'yes') {
1792: $allow_print_points=0;
1793: }
1794: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1795: 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 1796: &clear_required_languages();
1.319 foxr 1797: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1798: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1799:
1800: # Figure out what the due date is and if we need to print
1801: # it in the problem header. We have been logging the
1802: # last due date written to file.
1803:
1804: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1805: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1806: my $duedate_text = &mt('Due date: [_1]'
1807: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1808: my $temp_file;
1809: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1810:
1811: # Figure out what the last printed due date is or set it
1812: # to the epoch if no duedates have been printed.
1813:
1814: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1815: if (-e $filename) {
1816: $temp_file = Apache::File->new($filename);
1817: my @due_file = <$temp_file>;
1818: $due_file_content = $due_file[$#due_file];
1819: chomp $due_file_content;
1820: }
1821:
1822: # We display the due date iff it is not the same as the last
1823: # duedate in problem header ($due_file_content), and
1824: # none of our parts displayed a duedate.
1825: #
1826: my $parts_with_displayduedate;
1827: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1828: $parts_with_displayduedate =
1829: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1830: } else {
1831: $parts_with_displayduedate = 0;
1832: }
1833: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1834: $temp_file = Apache::File->new('>'.$filename);
1835: print $temp_file "$duetime\n";
1836: if (not $env{'request.symb'} =~ m/\.page_/) {
1837: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1838: $frontmatter .= $begin_doc.
1.448 bisitz 1839: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1840: } else {
1841: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1842: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1843: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1844: }
1.319 foxr 1845: }
1846: } else {
1.448 bisitz 1847: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1848: }
1849: } else {
1850: if (not $env{'request.symb'} =~ m/\.page_/) {
1851: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1852: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1853: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1854: }
1.319 foxr 1855: } else {
1.381 albertel 1856: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1857: }
1858: }
1859: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1860: }
1861:
1.159 albertel 1862: my $status=$Apache::inputtags::status['-1'];
1863: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1864: $target eq 'tex') {
1.249 albertel 1865: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1866: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1867: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1868: &Apache::inputtags::grade;
1.324 albertel 1869: } elsif ($status eq 'NEEDS_CHECKIN') {
1870: # no need to grade, and don't want to hide data
1.249 albertel 1871: } else {
1872: # move any submission data to .hidden
1873: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1874: }
1.159 albertel 1875: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1876: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1877: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1878: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1879: # if part is zero, no <part>s existed, so we need show the current
1880: # grading status
1881: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1882: $result.= $gradestatus;
1883: }
1884: if (
1.284 albertel 1885: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1886: ($target eq 'answer') || ($target eq 'tex')
1887: ) {
1.490 raeburn 1888: if (($target ne 'tex') &&
1889: ($env{'form.answer_output_mode'} ne 'tex') &&
1890: (!$env{'form.grade_imsexport'})) {
1.254 www 1891: $result.="</form>";
1.159 albertel 1892: }
1893: if ($target eq 'web') {
1.507 raeburn 1894: #
1895: # Closing </body></html> not added by end_page().
1896: # Added separately at end of this routine, after added
1897: # <script></script> so document will be valid xhtml.
1898: #
1899: $result.= &Apache::loncommon::end_page({'discussion' => 1,
1900: 'notbody' => 1});
1.159 albertel 1901: } elsif ($target eq 'tex') {
1.178 sakharuk 1902: my $endminipage = '';
1.284 albertel 1903: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1904: $endminipage = '\end{minipage}';
1905: }
1.284 albertel 1906: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1907: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1908: } else {
1.262 sakharuk 1909: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1910: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1911: $result .= $endminipage.'\end{document} ';
1912: } else {
1.382 albertel 1913: $result .= $endminipage;
1.262 sakharuk 1914: }
1.159 albertel 1915: }
1916: }
1917: }
1.476 www 1918: if ($target eq 'web') {
1919: $result.=&Apache::functionplotresponse::init_script();
1920: }
1.159 albertel 1921: if ($target eq 'grade') {
1922: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1923: &finalize_storage();
1924: }
1.284 albertel 1925: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1926: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1927: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1928: # normally we get it from above, but in CSTR
1.172 albertel 1929: # we always show answer mode too.
1.159 albertel 1930: }
1931: } elsif ($target eq 'meta') {
1932: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1933: @Apache::inputtags::response=();
1.159 albertel 1934: $result=&Apache::response::mandatory_part_meta;
1935: }
1.215 albertel 1936: $result.=&Apache::response::meta_part_order();
1.258 albertel 1937: $result.=&Apache::response::meta_response_order();
1.159 albertel 1938: } elsif ($target eq 'edit') {
1939: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1940: $result .= &problem_edit_footer();
1.320 albertel 1941: } elsif ($target eq 'modified') {
1942: $result .= $token->[2];
1.159 albertel 1943: }
1.155 albertel 1944:
1.284 albertel 1945: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1946: &Apache::inputtags::check_for_duplicate_ids();
1947: }
1.204 albertel 1948:
1949: &reset_problem_globals('problem');
1.159 albertel 1950:
1.502 foxr 1951: #
1952: # This shouild be just above the return so that the
1953: # time put in the javascript is as late as possible in the
1954: # computation:
1955: #
1956: if ($target eq 'web') {
1957: $result .= &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 1958: #
1959: # Closing tags delayed so any <script></script> tags
1960: # not in head can appear inside body, for valid xhtml.
1961: #
1962: $result .= "</body>\n</html>";
1.502 foxr 1963: }
1.159 albertel 1964: return $result;
1.48 albertel 1965: }
1966:
1.108 albertel 1967:
1.48 albertel 1968: sub start_library {
1.159 albertel 1969: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1970: my ($result,$form_tag_start);
1.371 albertel 1971: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1972: &init_problem_globals('library');
1973: $Apache::lonhomework::type='problem';
1974: }
1.159 albertel 1975: if ($target eq 'edit') {
1.343 albertel 1976: ($result,$form_tag_start)=
1977: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1978: 'Edit');
1979: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1980: my $temp=&Apache::edit::insertlist($target,$token);
1981: $result.=$temp;
1982: } elsif ($target eq 'modified') {
1983: $result=$token->[4];
1.340 albertel 1984: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1985: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1986: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1987: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1988: ($result,$form_tag_start)=
1989: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1990: $name);
1.479 raeburn 1991: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 1992: $result.=" \n $form_tag_start".
1.159 albertel 1993: '<input type="hidden" name="submitted" value="yes" />';
1994: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1995: if ($Apache::lonhomework::type eq 'practice') {
1996: $result.= '<input type="submit" name="resetdata" '.
1997: 'value="'.&mt('New Problem Variation').'" />'.
1998: &practice_problem_header().'<hr />';
1999: }
1.159 albertel 2000: }
2001: return $result;
1.48 albertel 2002: }
2003:
2004: sub end_library {
1.159 albertel 2005: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2006: my $result='';
2007: if ($target eq 'edit') {
2008: $result=&problem_edit_footer();
1.371 albertel 2009: } elsif ($target eq 'web'
2010: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
2011: && $env{'request.state'} eq "construct") {
1.349 albertel 2012: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 2013: }
1.371 albertel 2014: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
2015: &reset_problem_globals('library');
2016: }
1.159 albertel 2017: return $result;
1.197 www 2018: }
2019:
2020: sub start_definetag {
1.326 albertel 2021: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 2022:
2023: my $result;
2024:
2025: my $name = $token->[2]->{'name'};
1.326 albertel 2026: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 2027: if ($target eq 'web') {
2028: if ($name=~/^\//) {
2029: $result=
2030: '<br /><table class="LC_sty_end"><tr><th>'.
2031: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2032: } else {
2033: $result=
2034: '<br /><table class="LC_sty_begin"><tr><th>'.
2035: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2036: }
2037: $skip = &HTML::Entities::encode($skip, '<>&"');
2038: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 2039: }
2040: return $result;
2041: }
2042:
2043: sub end_definetag {
2044: return '';
1.1 albertel 2045: }
2046:
2047: sub start_block {
1.201 albertel 2048: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 2049:
2050: my $result;
1.1 albertel 2051:
1.339 albertel 2052: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2053: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 2054: my $code = $token->[2]->{'condition'};
1.385 albertel 2055: if (defined($code) && $code ne '') {
1.137 albertel 2056: if (!$Apache::lonxml::default_homework_loaded) {
2057: &Apache::lonxml::default_homework_load($safeeval);
2058: }
1.131 albertel 2059: $result = &Apache::run::run($code,$safeeval);
2060: &Apache::lonxml::debug("block :$code: returned :$result:");
2061: } else {
2062: $result='1';
2063: }
2064: if ( ! $result ) {
1.201 albertel 2065: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 2066: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2067: }
2068: $result='';
2069: } elsif ($target eq 'edit') {
2070: $result .=&Apache::edit::tag_start($target,$token);
2071: $result .=&Apache::edit::text_arg('Test Condition:','condition',
2072: $token,40);
2073: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2074: } elsif ($target eq 'modified') {
2075: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2076: $safeeval,'condition');
2077: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 2078: }
1.131 albertel 2079: return $result;
1.1 albertel 2080: }
2081:
2082: sub end_block {
1.167 www 2083: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2084: my $result;
2085: if ($target eq "edit") {
2086: $result.= &Apache::edit::tag_end($target,$token,'');
2087: }
2088: return $result;
2089: }
1.500 foxr 2090: #
2091: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
2092: # ...
2093: # </languageblock>
2094: #
2095: # This declares the intent to provide content that can be rendered in the
2096: # set of languages in the include specificatino but not in the exclude
2097: # specification. If a currently preferred language is in the include list
2098: # the content in the <languageblock>...</languageblock> is rendered
2099: # If the currently preferred language is in the exclude list,
2100: # the content in the <languageblock>..></languageblock is not rendered.
2101: #
2102: # Pathalogical case handling:
2103: # - Include specified, without the preferred language but exclude specified
2104: # also without the preferred langauge results in rendering the block.
2105: # - Exclude specified without include and excluden not containing a
2106: # preferred language renders the block.
2107: # - Include and exclude both specifying the preferred language does not
2108: # render the block.
2109: # - If neither include/exclude is specified, the block gets rendered.
2110: #
2111: # This tag has no effect when target is in {edit, modified}
2112: #
1.167 www 2113: sub start_languageblock {
1.201 albertel 2114: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 2115:
1.500 foxr 2116: my $result = '';
1.167 www 2117:
1.339 albertel 2118: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2119: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 2120: my $include = $token->[2]->{'include'};
2121: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 2122: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 2123:
2124: # This should not even happen, since we should at least have the server language
2125:
2126: if (!$preferred_languages[0]) {
2127: $preferred_languages[0]='en';
2128: }
2129:
2130: # Now loop over all languages in order of preference
2131:
2132: my $render;
1.398 www 2133: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 2134:
2135: # If neither include/nor exlude is present the block is going
2136: # to get rendered.
2137:
1.399 www 2138: my $found=0;
1.500 foxr 2139: $render=1;
2140:
2141: # If include is specified, don't render the block
2142: # unless the preferred language is included in the set.
2143:
1.398 www 2144: if ($include) {
1.500 foxr 2145: $render=0;
1.398 www 2146: foreach my $included_language (split(/\,/,$include)) {
2147: if ($included_language eq $preferred_language) {
1.500 foxr 2148: $render=1;
1.399 www 2149: $found=1;
1.500 foxr 2150: last; # Only need to find the first.
1.398 www 2151: }
2152: }
2153: }
1.500 foxr 2154: # Do we have an exclude argument?
2155: # If so, and one of the languages matches a preferred language
2156: # inhibit rendering the block. Note that in the pathalogical case the
2157: # author has specified a preferred language in both the include and exclude
2158: # attribte exclude is preferred.
2159:
1.398 www 2160: if ($exclude) {
1.500 foxr 2161: $render=1;
1.398 www 2162: foreach my $excluded_language (split(/\,/,$exclude)) {
2163: if ($excluded_language eq $preferred_language) {
1.500 foxr 2164: $render=0;
1.399 www 2165: $found=1;
1.500 foxr 2166: last; # Only need to find the first.
1.398 www 2167: }
2168: }
2169: }
1.500 foxr 2170: if ($found) {
2171: last; # Done on any match of include or exclude.
2172: }
1.398 www 2173: }
1.500 foxr 2174: # If $render not true skip the entire block until </languageblock>
2175: #
2176:
2177: if ( ! $render ) {
1.201 albertel 2178: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
2179: $style);
2180: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2181: }
1.500 foxr 2182: # If $render is true, we've not skipped the contents of the <languageglock>
2183: # and the normal loncapa processing flow will render it as a matter of course.
2184:
1.167 www 2185: } elsif ($target eq 'edit') {
2186: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2187: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 2188: $token,40);
1.211 albertel 2189: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 2190: $token,40);
2191: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2192: } elsif ($target eq 'modified') {
2193: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 2194: $safeeval,'include',
2195: 'exclude');
1.167 www 2196: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2197: }
2198: return $result;
2199: }
2200:
2201: sub end_languageblock {
1.170 www 2202: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2203: my $result;
1.201 albertel 2204: if ($target eq "edit") {
1.170 www 2205: $result.= &Apache::edit::tag_end($target,$token,'');
2206: }
2207: return $result;
2208: }
1.500 foxr 2209: # languagblock specific tags:
2210: {
2211: # For chunks of a resource that has translations, this hash contains
2212: # the translations available indexed by language name.
2213: #
2214:
2215: my %available_texts;
1.170 www 2216:
1.500 foxr 2217: # <translated> starts a block of a resource that has multiple translations.
2218: # See the <lang> tag as well.
2219: # When </translated> is encountered if there is a translation for the
2220: # currently preferred language, that is rendered inthe web/tex/webgrade
2221: # targets. Otherwise, the default text is rendered.
2222: #
2223: # Note that <lang> is only registered for the duration of the
2224: # <translated>...</translated> block
2225: #
2226: # Pathalogical case handling:
2227: # - If there is no <lang> that specifies a 'default' and there is no
2228: # translation that matches a preferred language, nothing is rendered.
2229: # - Nested <translated>...</translated> might be linguistically supported by
2230: # XML due to the stack nature of tag registration(?) however the rendered
2231: # output will be incorrect because there is only one %available_texts
2232: # has and end_translated clears it.
2233: # - Material outside of a <lang>...</lang> block within the
2234: # <translated>...<translated> block won't render either e.g.:
2235: # <translated>
2236: # The following will be in your preferred langauge:
2237: # <lang which='en'>
2238: # This section in english
2239: # </lang>
2240: # <lang which='sgeiso'>
2241: # Hier es ist auf Deutsch.
2242: # </lang>
2243: # <lang which='sfriso'>
2244: # En Francais
2245: # </lang>
2246: # </translated>
2247: #
2248: # The introductory text prior to the first <lang> tag is not rendered.
2249: #
1.397 albertel 2250: sub start_translated {
2251: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2252: &Apache::lonxml::register('Apache::structuretags',('lang'));
2253: undef(%available_texts);
2254: }
2255:
2256: sub end_translated {
2257: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2258: my $result;
2259: #show the translation on viewable targets
2260: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
2261: # or non-viewable targets, if it's embedded in something that
2262: # wants the output
2263: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
2264: && &Apache::lonxml::in_redirection() ) ) {
2265: my @possibilities = keys(%available_texts);
2266: my $which =
2267: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 2268: if ($target eq 'tex') {
2269: $result = &select_hyphenation($which);
2270: }
2271: $result .= $available_texts{$which};
2272: if ($target eq 'tex') {
2273: $result .= &select_metadata_hyphenation(); # Restore original language.
2274: }
1.397 albertel 2275: }
2276: undef(%available_texts);
2277: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
2278: return $result;
2279: }
2280:
1.500 foxr 2281: # <lang [which='language-name'] [other='lang1,lang2...']>
2282: # Specifies that the block contained within it is a translation
2283: # for a specific language specified by the 'which' attribute. The
2284: # 'other' attribute can be used by itself or in conjunction with
2285: # which to specify this tag _may_ be used as a translation for some
2286: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
2287: # specifying that the block provides a translation for US (primary)
2288: # Canadian, Australian and UK Englush.
2289: #
2290: # Comment: this seems a bit silly why not just support a list of languages
2291: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
2292: #
2293: # Effect:
2294: # The material within the <lang>..</lang> block is stored in the
2295: # specified set of $available_texts hash entries, the appropriate one
2296: # is selected at </translated> time.
2297: #
2298: # Pathalogical case handling:
2299: # If a language occurs multiple times within a <translated> block,
2300: # only the last one is rendered e.g.:
2301: #
2302: # <translated>
2303: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
2304: # Red green color blindness is quite common affecting about 7.8% of
2305: # the male population, but onloy about .65% of the female population.
2306: # </lang>
2307: # Red green colour blindness is quite common affecting about 7.8% of
2308: # the male population, but onloy about .65% of the female population.
2309: # <lang which='seniso', other='senisoCA,senisoAU'>
2310: # </translated>
2311: #
2312: # renders the correct spelling of color (colour) for people who have specified
2313: # a preferred language that is one of the British Commonwealth languages
2314: # even though those are also listed as valid selections for the US english
2315: # <lang> block.
2316: #
1.397 albertel 2317: sub start_lang {
2318: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2319: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2320: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2321: &Apache::lonxml::startredirection();
2322: }
2323: return '';
2324: }
2325:
2326: sub end_lang {
2327: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2328: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2329: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2330: my $result = &Apache::lonxml::endredirection();
2331: my $which = &Apache::lonxml::get_param('which',$parstack,
2332: $safeeval);
1.431 raeburn 2333: if ($which=~/\w/) {
2334: $available_texts{$which} = $result;
2335: }
2336: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
2337: $safeeval);
2338: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
2339: if ($language=~/\w/) {
2340: $available_texts{$language} = $result;
2341: }
1.427 bisitz 2342: }
2343:
1.397 albertel 2344: }
2345: return '';
2346: }
1.500 foxr 2347: } # end langauge block specific tags.
2348:
1.397 albertel 2349:
1.170 www 2350: sub start_instructorcomment {
1.201 albertel 2351: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 2352:
2353: my $result;
2354:
1.339 albertel 2355: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2356: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 2357: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 2358: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 2359: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
2360: $parser,$style);
1.170 www 2361: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2362: }
2363: $result='';
2364: } elsif ($target eq 'edit') {
2365: $result .=&Apache::edit::tag_start($target,$token);
2366: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2367: }
2368: return $result;
2369: }
2370:
2371: sub end_instructorcomment {
1.159 albertel 2372: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2373: my $result;
2374: if ($target eq "edit") {
2375: $result.= &Apache::edit::tag_end($target,$token,'');
2376: }
2377: return $result;
1.4 tsai 2378: }
2379:
2380: sub start_while {
1.326 albertel 2381: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2382:
1.160 albertel 2383: my $result;
1.339 albertel 2384: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2385: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2386: my $code = $token->[2]->{'condition'};
1.4 tsai 2387:
1.160 albertel 2388: push( @Apache::structuretags::whileconds, $code);
2389: if (!$Apache::lonxml::default_homework_loaded) {
2390: &Apache::lonxml::default_homework_load($safeeval);
2391: }
2392: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2393: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2394: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2395: push( @Apache::structuretags::whileline, $token->[5]);
2396: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2397: if ( $result ) {
2398: &Apache::lonxml::newparser($parser,\$bodytext);
2399: }
2400: } elsif ($target eq 'edit') {
2401: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2402: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2403: $token,40);
2404: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2405: } elsif ($target eq 'modified') {
2406: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2407: $safeeval,'condition');
2408: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2409: }
1.160 albertel 2410: return $result;
1.4 tsai 2411: }
2412:
2413: sub end_while {
1.159 albertel 2414: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2415: my $result;
2416:
1.339 albertel 2417: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2418: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2419: my $code = pop(@Apache::structuretags::whileconds);
2420: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2421: my $line = pop(@Apache::structuretags::whileline);
2422: my $return = &Apache::run::run($code,$safeeval);
2423: my $starttime=time;
2424: my $error=0;
2425: while ($return) {
2426: if (time-$starttime >
2427: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2428: $return = 0; $error=1; next;
1.161 albertel 2429: }
2430: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2431: if ($target eq 'grade' || $target eq 'answer' ||
2432: $target eq 'analyze') {
2433: # grade/answer/analyze should produce no output but if we
2434: # are redirecting, the redirecter should know what to do
2435: # with the output
2436: if (!$Apache::lonxml::redirection) { undef($result); }
2437: }
1.161 albertel 2438: $return = &Apache::run::run($code,$safeeval);
2439: }
1.512.2.5 raeburn 2440: if ($error) {
2441: &Apache::lonxml::error(
2442: '<pre>'
2443: .&mt('Code ran too long. It ran for more than [_1] seconds.',
2444: $Apache::lonnet::perlvar{'lonScriptTimeout'})
2445: .&mt('This occurred while running <while> on line [_1].',
2446: $line)
2447: .'</pre>');
2448: }
1.160 albertel 2449: } elsif ($target eq "edit") {
2450: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2451: }
1.160 albertel 2452: return $result;
1.1 albertel 2453: }
1.6 tsai 2454:
1.160 albertel 2455: # <randomlist show="1">
1.6 tsai 2456: # <tag1>..</tag1>
2457: # <tag2>..</tag2>
2458: # <tag3>..</tag3>
1.160 albertel 2459: # ...
1.6 tsai 2460: # </randomlist>
2461: sub start_randomlist {
1.326 albertel 2462: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2463: my $result;
1.339 albertel 2464: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2465: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2466: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2467: my $b_parser= HTML::LCParser->new(\$body);
2468: $b_parser->xml_mode(1);
2469: $b_parser->marked_sections(1);
1.159 albertel 2470: my $b_tok;
2471: my @randomlist;
2472: my $list_item;
2473: while($b_tok = $b_parser->get_token() ) {
2474: if($b_tok->[0] eq 'S') { # start tag
2475: # get content of the tag until matching end tag
2476: # get all text upto the matching tag
2477: # and push the content into @randomlist
2478: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2479: $b_parser);
2480: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2481: push(@randomlist,$list_item);
2482: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2483: # $list_item</b>";
2484: }
2485: if($b_tok->[0] eq 'T') { # text
2486: # what to do with text in between tags?
2487: # print "<b>TEXT $b_tok->[1]</b><br />";
2488: }
2489: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2490: # print "<b>END-TAG $b_tok->[1]</b><br />";
2491: # }
2492: }
1.303 albertel 2493: if (@randomlist) {
2494: my @idx_arr = (0 .. $#randomlist);
2495: &Apache::structuretags::shuffle(\@idx_arr);
2496: my $bodytext = '';
2497: my $show=$#randomlist;
2498: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2499: $showarg--;
2500: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2501: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2502: my @currlist;
2503: my $part = $Apache::inputtags::part;
2504: if ($part ne '') {
2505: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2506: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2507: if (!(grep(/^\Q$part\E$/,@currlist))) {
2508: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2509: }
2510: } else {
2511: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2512: }
2513: }
2514: }
1.512.2.9 raeburn 2515: for my $i (0 .. $show) {
2516: $bodytext .= "$randomlist[ $idx_arr[$i] ]";
1.303 albertel 2517: }
2518: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2519: }
2520: } elsif ($target eq 'edit' ) {
2521: $result .=&Apache::edit::tag_start($target,$token);
2522: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2523: $token,5);
2524: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2525: } elsif ($target eq 'modified' ) {
2526: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2527: $safeeval,'show');
2528: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2529: }
2530: return $result;
1.7 tsai 2531: }
2532:
2533: sub shuffle {
2534: my $a=shift;
2535: my $i;
1.303 albertel 2536: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 2537: &Apache::response::pushrandomnumber();
1.159 albertel 2538: for($i=@$a;--$i;) {
2539: my $j=int(&Math::Random::random_uniform() * ($i+1));
2540: next if $i == $j;
2541: @$a[$i,$j] = @$a[$j,$i];
2542: }
1.251 albertel 2543: &Apache::response::poprandomnumber();
1.7 tsai 2544: }
1.6 tsai 2545: }
2546:
2547: sub end_randomlist {
1.159 albertel 2548: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2549: my $result;
2550: if ($target eq 'edit' ) {
2551: $result=&Apache::edit::tag_end($target,$token,
2552: 'End Randomly Parsed Block');
2553: }
2554: return $result;
1.6 tsai 2555: }
2556:
1.283 albertel 2557: sub ordered_show_check {
2558: my $last_part=$Apache::inputtags::partlist[-2];
2559: my $in_order=
2560: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2561: my $in_order_show=1;
2562: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2563: $in_order_show=&Apache::response::check_status($last_part);
2564: }
2565: return $in_order_show;
2566: }
2567:
1.469 www 2568:
2569: sub start_startpartmarker {
2570: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2571: my $result='';
2572: if ($target eq 'edit') {
2573: $result=&Apache::edit::tag_start($target,$token);
2574: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2575: $result.=&Apache::edit::end_table();
2576:
2577: }
2578: return $result;
2579: }
2580:
2581: sub end_startpartmarker {
2582: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2583: my @result;
2584: if ($target eq 'edit') { $result[1]='no'; }
2585: return @result;
2586: }
2587:
2588: sub start_endpartmarker {
2589: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2590: my $result='';
2591: if ($target eq 'edit') {
2592: $result=&Apache::edit::tag_start($target,$token);
2593: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2594: $result.=&Apache::edit::end_table();
2595:
2596: }
2597: return $result;
2598: }
2599:
2600: sub end_endpartmarker {
2601: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2602: my @result;
2603: if ($target eq 'edit') { $result[1]='no'; }
2604: return @result;
2605: }
2606:
2607:
2608:
2609:
2610:
1.11 albertel 2611: sub start_part {
1.326 albertel 2612: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2613: if (!$Apache::lonxml::metamode) {
2614: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2615: # duedates.
2616: }
1.159 albertel 2617: my $result='';
1.386 albertel 2618: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2619: $Apache::inputtags::part=$id;
1.177 albertel 2620: push(@Apache::inputtags::partlist,$id);
1.512.2.10 raeburn 2621: $Apache::inputtags::leniency='';
1.177 albertel 2622: @Apache::inputtags::response=();
1.159 albertel 2623: @Apache::inputtags::previous=();
2624: @Apache::inputtags::previous_version=();
1.405 albertel 2625: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2626: &Apache::response::reset_params();
2627:
1.159 albertel 2628: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2629: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2630: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.512.2.9 raeburn 2631: if ($Apache::lonhomework::type eq 'randomizetry') {
2632: my $rndseed=&setup_rndseed($safeeval,$target);
2633: if (($target eq 'grade') && &Apache::response::submitted()) {
2634: $Apache::lonhomework::results{"resource.$id.rndseed"}=$rndseed;
2635: }
2636: } elsif (($target eq 'grade') && &Apache::response::submitted()) {
2637: $Apache::lonhomework::results{"resource.$id.rndseed"}=$Apache::lonhomework::rawrndseed;
2638: }
1.283 albertel 2639: my $in_order_show=&ordered_show_check();
1.214 albertel 2640: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2641: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2642: &Apache::run::run($expression,$safeeval);
1.159 albertel 2643:
2644: if ($target eq 'meta') {
1.224 www 2645: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2646: return &Apache::response::mandatory_part_meta.
2647: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2648: } elsif ($target eq 'web' || $target eq 'grade' ||
2649: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2650: if ($hidden || !$in_order_show) {
1.326 albertel 2651: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2652: } else {
2653: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2654: push (@Apache::inputtags::status,$status);
2655: my $expression='$external::datestatus="'.$status.'";';
2656: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2657: &Apache::run::run($expression,$safeeval);
1.284 albertel 2658: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2659: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2660: }
1.216 albertel 2661: if (( $status eq 'CLOSED' ) ||
2662: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2663: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2664: ( $status eq 'BANNED') ||
2665: ( $status eq 'UNAVAILABLE') ||
2666: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2667: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2668: $style);
1.159 albertel 2669: if ( $target eq "web" ) {
1.211 albertel 2670: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2671: } elsif ( $target eq 'tex' ) {
1.284 albertel 2672: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2673: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2674: } else {
1.211 albertel 2675: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2676: }
1.159 albertel 2677: }
2678: } else {
2679: if ($target eq 'tex') {
1.284 albertel 2680: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2681: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2682: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2683: } else {
2684: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2685: }
1.195 sakharuk 2686: }
1.159 albertel 2687: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2688: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.512.2.9 raeburn 2689: my @allkeys = split(/,/,$allkeys);
1.222 sakharuk 2690: my $allow_print_points = 0;
2691: foreach my $partial_key (@allkeys) {
1.230 albertel 2692: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2693: if ($1 ne '0') {$allow_print_points=1;}
2694: }
2695: }
1.275 albertel 2696: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2697: if (defined($maxtries) && $maxtries < 0) {
2698: $allow_print_points=0;
2699: }
1.302 albertel 2700: if (lc($env{'course.'.$env{'request.course.id'}.
2701: '.disableexampointprint'}) eq 'yes') {
2702: $allow_print_points=0;
2703: }
1.463 foxr 2704: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2705: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2706:
2707: }
1.233 www 2708: } elsif ($target eq 'web') {
1.479 raeburn 2709: if ($status eq 'CAN_ANSWER') {
2710: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2711: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
2712: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
2713: my $num = scalar(@Apache::inputtags::partlist)-1;
2714: if ($probrandomize eq 'randomizetry') {
2715: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
2716: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2717: } else {
2718: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2719: if ($probrandtries ne $reqtries) {
2720: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2721: }
2722: }
2723: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
2724: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2725: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2726: }
2727: }
1.475 raeburn 2728: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2729: }
2730: }
2731: }
2732: } elsif ($target eq 'edit') {
2733: $result.=&Apache::edit::tag_start($target,$token);
2734: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2735: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2736: ' '.
2737: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2738: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2739: } elsif ($target eq 'modified') {
2740: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2741: $safeeval,'id','display');
1.159 albertel 2742: if ($constructtag) {
1.225 albertel 2743: #limiting ids to only letters numbers, and space
1.224 www 2744: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2745: $result = &Apache::edit::rebuild_tag($token);
2746: }
2747: }
2748: return $result;
1.11 albertel 2749: }
2750:
2751: sub end_part {
1.159 albertel 2752: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2753: &Apache::lonxml::debug("in end_part $target ");
2754: my $status=$Apache::inputtags::status['-1'];
2755: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2756: my $in_order_show=&ordered_show_check();
1.321 albertel 2757: my $result;
2758: if (!$Apache::lonxml::metamode) {
2759: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2760: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2761: }
1.312 albertel 2762: if ($target eq 'grade') {
1.249 albertel 2763: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2764: !$hidden && $in_order_show) {
1.311 foxr 2765: $result.=&Apache::inputtags::grade;
1.249 albertel 2766: } else {
2767: # move any submission data to .hidden
2768: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2769: }
1.283 albertel 2770: } elsif (($target eq 'web' || $target eq 'tex') &&
2771: !$hidden && $in_order_show) {
1.159 albertel 2772: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2773: $target);
1.490 raeburn 2774: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2775: ($env{'form.grade_imsexport'})) {
1.212 albertel 2776: $gradestatus='';
2777: }
1.311 foxr 2778: $result.=$gradestatus;
1.265 sakharuk 2779: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2780: } elsif ($target eq 'edit') {
1.311 foxr 2781: $result.=&Apache::edit::end_table();
1.322 albertel 2782: } elsif ($target eq 'modified') {
2783: $result .= $token->[2];
1.159 albertel 2784: }
2785: pop @Apache::inputtags::status;
2786: $Apache::inputtags::part='';
1.512.2.10 raeburn 2787: $Apache::inputtags::leniency='';
1.295 albertel 2788: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2789: return $result;
1.11 albertel 2790: }
1.1 albertel 2791:
1.25 albertel 2792: sub start_preduedate {
1.326 albertel 2793: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2794: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2795: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2796: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2797: if (!$Apache::lonhomework::scantronmode &&
2798: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2799: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2800: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2801: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2802: }
1.24 albertel 2803: }
1.159 albertel 2804: return '';
1.24 albertel 2805: }
2806:
1.25 albertel 2807: sub end_preduedate {
1.159 albertel 2808: return '';
1.24 albertel 2809: }
2810:
1.369 foxr 2811: # In all the modes where <postanswerdate> text is
2812: # displayable, all we do is eat up the text between the start/stop
2813: # tags if the conditions are not right to display it.
1.25 albertel 2814: sub start_postanswerdate {
1.326 albertel 2815: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2816: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2817: &Apache::lonnet::allowed('pav',
2818: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2819: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2820: $target eq 'tex' ) {
1.300 albertel 2821: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2822: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2823: (($target eq 'tex') && !$pav)) {
1.326 albertel 2824: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2825: }
2826: }
2827: return '';
1.24 albertel 2828: }
2829:
1.25 albertel 2830: sub end_postanswerdate {
1.159 albertel 2831: return '';
1.24 albertel 2832: }
2833:
1.25 albertel 2834: sub start_notsolved {
1.326 albertel 2835: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2836: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2837: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2838: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2839: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2840: if ($gradestatus =~ /^correct/ &&
2841: &Apache::response::show_answer()) {
1.159 albertel 2842: &Apache::lonxml::debug("skipping");
1.326 albertel 2843: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2844: }
1.24 albertel 2845: }
1.159 albertel 2846: return '';
1.24 albertel 2847: }
2848:
1.25 albertel 2849: sub end_notsolved {
1.159 albertel 2850: return '';
1.24 albertel 2851: }
2852:
2853: sub start_solved {
1.326 albertel 2854: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2855: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2856: $target eq 'tex') {
2857: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2858: if ($gradestatus !~ /^correct/ ||
2859: !&Apache::response::show_answer()) {
1.326 albertel 2860: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2861: }
1.24 albertel 2862: }
1.159 albertel 2863: return '';
1.24 albertel 2864: }
2865:
2866: sub end_solved {
1.248 albertel 2867: return '';
2868: }
2869:
2870: sub start_problemtype {
1.326 albertel 2871: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2872: my $result;
1.339 albertel 2873: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2874: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2875: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2876: if (!defined($mode)) { $mode='show'; }
2877: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2878: my $found=0;
2879: foreach my $type (split(',',$for)) {
2880: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2881: }
2882: if ($mode eq 'show' && !$found) {
1.326 albertel 2883: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2884: }
2885: if ($mode eq 'hide' && $found) {
1.326 albertel 2886: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2887: }
2888: } elsif ($target eq 'edit') {
2889: $result .=&Apache::edit::tag_start($target,$token);
2890: $result.=&Apache::edit::select_arg('Mode:','mode',
2891: [['show','Show'],
2892: ['hide','Hide']]
2893: ,$token);
2894: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.512.2.2 raeburn 2895: [ ['exam','Exam/Quiz Problem'],
1.248 albertel 2896: ['survey','Survey'],
1.465 raeburn 2897: ['surveycred','Survey (with credit)'],
2898: ['anonsurvey','Anonymous Survey'],
2899: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2900: ['problem','Homework Problem'],
1.479 raeburn 2901: ['practice','Practice Problem'],
2902: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2903: ,$token);
2904: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2905: } elsif ($target eq 'modified') {
2906: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2907: $safeeval,'mode','for');
2908: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2909: }
2910: return $result;
2911: }
2912:
2913: sub end_problemtype {
1.159 albertel 2914: return '';
1.24 albertel 2915: }
1.34 albertel 2916:
2917: sub start_startouttext {
1.159 albertel 2918: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2919: my @result=(''.'');
2920: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2921:
2922: my $nesting =
2923: &Apache::lonxml::set_state('outtext',
2924: &Apache::lonxml::get_state('outtext')+1);
2925: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2926: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2927: }
1.159 albertel 2928: return (@result);
1.34 albertel 2929: }
1.159 albertel 2930:
1.34 albertel 2931: sub end_startouttext {
1.326 albertel 2932: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2933: my $result='';
2934: my $text='';
2935: if ($target eq 'edit') {
1.424 foxr 2936: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2937: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.512.2.11 raeburn 2938: $result.=&Apache::edit::start_table($token)."<tr><td>".&Apache::loncommon::insert_folding_button()
2939: ." ".&mt('Text Block')."</td>"
1.438 bisitz 2940: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2941: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 2942: .'</span></td>'
1.512.2.12 raeburn 2943: .'<td><span id="math_'.$areaid.'">';
2944: if ($env{'environment.nocodemirror'}) {
2945: $result.=&Apache::lonhtmlcommon::dragmath_button($areaid,1);
2946: } else {
2947: $result.=' ';
2948: }
2949: $result.='</span></td>'
1.474 raeburn 2950: .'<td>'
2951: .&Apache::edit::insertlist($target,$token)
2952: .'</td>'
1.512.2.5 raeburn 2953: .'<td class="LC_edit_problem_latexhelper">' .
1.474 raeburn 2954: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2955: &Apache::edit::end_row().
1.362 albertel 2956: &Apache::edit::start_spanning_row()."\n".
1.255 www 2957: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2958: }
2959: if ($target eq 'modified') {
1.219 albertel 2960: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2961: }
2962: if ($target eq 'tex') {
2963: $result .= '\noindent ';
2964: }
2965: return $result;
1.34 albertel 2966: }
1.159 albertel 2967:
1.34 albertel 2968: sub start_endouttext {
1.159 albertel 2969: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2970: my $result='';
2971: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2972: if ($target eq "modified") {
2973: $result='<endouttext />'.
1.377 albertel 2974: &Apache::edit::handle_insertafter('startouttext');
2975: }
1.404 albertel 2976:
2977: my $nesting =
2978: &Apache::lonxml::set_state('outtext',
2979: &Apache::lonxml::get_state('outtext')-1);
2980: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2981: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2982: &Apache::lonxml::set_state('outtext', 0);
2983: }
1.159 albertel 2984: return $result;
1.34 albertel 2985: }
1.159 albertel 2986:
1.34 albertel 2987: sub end_endouttext {
1.159 albertel 2988: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2989: my @result=('','');
2990: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2991: return (@result);
1.34 albertel 2992: }
1.159 albertel 2993:
1.45 albertel 2994: sub delete_startouttext {
1.326 albertel 2995: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2996: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2997: my $text=$$parser['-1']->get_text("/endouttext");
2998: my $ntoken=$$parser['-1']->get_token();
2999: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
3000: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
3001: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
3002: # they did the last time round
3003: &Apache::lonxml::increasedepth($ntoken);
3004: &Apache::lonxml::decreasedepth($ntoken);
3005: return 1;
1.193 www 3006: }
3007:
3008: sub start_simpleeditbutton {
3009: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3010: my $result='';
1.284 albertel 3011: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 3012: ($target eq 'web') &&
1.330 albertel 3013: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 3014: my $url=$env{'request.noversionuri'};
1.193 www 3015: $url=~s/\?.*$//;
1.367 albertel 3016: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 3017: # Warning makes more sense and is more important on edit screen
1.442 bisitz 3018: # $result='<p class="LC_warning">'
3019: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
3020: # .&Apache::loncommon::help_open_topic('Caching')
3021: # .'</p>';
1.486 www 3022: $result.=&Apache::loncommon::head_subbox(
3023: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 3024: .&Apache::lonhtmlcommon::add_item_funclist(
3025: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
3026: .&mt('Edit').'</a>')
1.486 www 3027: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 3028:
1.193 www 3029: }
3030: return $result;
3031: }
3032:
3033: sub end_simpleeditbutton {
3034: return '';
1.45 albertel 3035: }
1.34 albertel 3036:
1.428 raeburn 3037: sub practice_problem_header {
3038: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
3039: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
3040: '</span>';
3041: }
3042:
1.479 raeburn 3043: sub randomizetry_problem_header {
3044: my ($problemstatus,$reqtries) = @_;
3045: my ($header,$text);
3046: if ($reqtries > 1) {
3047: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
3048: if (($problemstatus eq 'no') ||
3049: ($problemstatus eq 'no_feedback_ever')) {
3050: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3051: } else {
3052: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3053: }
3054: } else {
3055: $header = &mt('New Problem Variation Each Try');
3056: if (($problemstatus eq 'no') ||
3057: ($problemstatus eq 'no_feedback_ever')) {
3058: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
3059:
3060: } else {
3061: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
3062: }
3063: }
3064: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
3065: '<span class="LC_info">'.$text.'</span><hr />';
3066: }
3067:
3068: sub randomizetry_part_header {
3069: my ($problemstatus,$reqtries,$num) = @_;
3070: my ($header,$text);
3071: if ($reqtries eq 'none') {
3072: $header = &mt('No Question Variation');
3073: $text = &mt('For this question there will no new variation after a try.');
3074: } elsif ($reqtries > 1) {
3075: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
3076: if (($problemstatus eq 'no') ||
3077: ($problemstatus eq 'no_feedback_ever')) {
3078: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3079: } else {
3080: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3081: }
3082: } else {
3083: $header = &mt('New Question Variation For Each Try');
3084: if (($problemstatus eq 'no') ||
3085: ($problemstatus eq 'no_feedback_ever')) {
3086: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
3087: } else {
3088: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
3089: }
3090: }
3091: my $output;
3092: if ($num > 1) {
3093: $output .= '<hr />';
3094: }
3095: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
3096: '<span class="LC_info">'.$text.'</span><br /><br />';
3097: return $output;
3098: }
3099:
1.1 albertel 3100: 1;
3101: __END__
1.435 jms 3102:
3103: =pod
3104:
3105: =back
3106:
3107: =cut
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