Annotation of loncom/homework/structuretags.pm, revision 1.512.2.19
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.512.2.19! raeburn 4: # $Id: structuretags.pm,v 1.512.2.18 2019/10/23 22:30:28 raeburn Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.435 jms 30: =pod
31:
32: =head1 NAME
33:
34: Apache::structuretags
35:
36: =head1 SYNOPSIS
37:
38:
39: This is part of the LearningOnline Network with CAPA project
40: described at http://www.lon-capa.org.
41:
42:
43: =head1 NOTABLE SUBROUTINES
44:
45: =over
46:
47: =item
48:
49: =back
50:
51: =cut
52:
1.133 sakharuk 53:
1.1 albertel 54: package Apache::structuretags;
55:
56: use strict;
57: use Apache::lonnet;
1.101 sakharuk 58: use Apache::File();
1.147 www 59: use Apache::lonmenu;
1.210 albertel 60: use Apache::lonlocal;
1.231 sakharuk 61: use Apache::lonxml;
1.434 foxr 62: use Apache::londefdef;
1.338 albertel 63: use Apache::lonenc();
1.500 foxr 64: use Apache::loncommon();
1.267 albertel 65: use Time::HiRes qw( gettimeofday tv_interval );
1.356 www 66: use lib '/home/httpd/lib/perl/';
67: use LONCAPA;
68:
1.78 harris41 69: BEGIN {
1.469 www 70: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','translated','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startpartmarker','startouttext','endpartmarker','endouttext','simpleeditbutton','definetag'));
1.10 albertel 71: }
72:
1.500 foxr 73:
74: #---------------------------------------------------------------------------------
75: #
76: # This section of code deals with hyphenation management.
77: # We must do three things:
78: # - keep track fo the desired languages to alter the header.
79: # - provide hyphenation selection as needed by each language that appears in the
80: # text.
81: # - Provide the header text needed to make available the desired hyphenations.
82: #
83: #
84:
85: # Hash whose keys are the languages encountered in the document/resource.
86: #
87:
88: my %languages_required;
89: ##
90: # Given a language selection as input returns a chunk of LaTeX that
91: # selects the required hyphenator.
92: #
93: # @param language - the language being selected.
94: # @return string
95: # @retval The LaTeX needed to select the hyphenation appropriate to the language.
96: #
97: sub select_hyphenation {
98: my $language = shift;
99:
100: $language = &Apache::loncommon::latexlanguage($language); # Translate -> latex language.
101:
102: # If there is no latex language there's not much we can do:
103:
104: if ($language) {
105: &require_language($language);
106: my $babel_hyphenation = "\\selectlanguage{$language}";
107:
108: return $babel_hyphenation;
109: } else {
110: return '';
111: }
112: }
113: ##
114: # Selects hyphenation based on the current problem metadata.
115: # This requires that
116: # - There is a language metadata item set for the problem.
117: # - The language has a latex/babel hyphenation.
118: #
119: # @note: Uses &Apache::lonxml::request to locate the Uri associated with
120: # this problem.
121: # @return string (possibly empty).
122: # @retval If not empty an appropriate \selectlanguage{} directive.
123: #
124: sub select_metadata_hyphenation {
125: my $uri = $Apache::lonxml::request->uri;
126: my $language = &Apache::lonnet::metadata($uri, 'language');
127: my $latex_language = &Apache::loncommon::latexhyphenation($language);
128: if ($latex_language) {
129: return '\selectlanguage{'.$latex_language."}\n";
130: }
131: return ''; # no latex hyphenation or no lang metadata.
132: }
133:
134:
135: ##
136: # Clears the set of languages required by the document being rendered.
137: #
138: sub clear_required_languages {
139: %languages_required = ();
140: }
141: ##
142: # Allows an external client of this module to register a need for a language:
143: #
144: # @param LaTeX language required:
145: #
146: sub require_language {
147: my $language = shift;
148: $languages_required{$language} = 1;
149: }
150:
151: ##
152: # Provides the header for babel that indicates the languages
153: # the document requires.
154: # @return string
155: # @retval \usepackage[lang1,lang2...]{babel}
156: # @retval '' if there are no languages_required.
157: sub languages_header {
158: my $header ='';
159: my @languages = (keys(%languages_required));
160:
161: # Only generate the header if there are languages:
162:
163: if (scalar @languages) {
164: my $language_list = join(',', (@languages));
165: $header = '\usepackage['.$language_list."]{babel}\n";
166: }
167: return $header;
168: }
169:
170: #----------------------------------------------------------------------------------
171:
1.10 albertel 172: sub start_web {
1.326 albertel 173: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 174: if ($target ne 'edit' && $target ne 'modified') {
175: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
176: if ($target eq 'web' || $target eq 'webgrade') {
177: return $bodytext;
178: }
179: } elsif ($target eq "edit" ) {
180: my $bodytext =
181: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
182: my $result = &Apache::edit::tag_start($target,$token);
183: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
184: return $result;
185: } elsif ( $target eq "modified" ) {
186: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 187: }
188: return '';
1.10 albertel 189: }
190:
191: sub end_web {
1.44 ng 192: return '';
1.10 albertel 193: }
194:
195: sub start_tex {
1.326 albertel 196: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 197: my $result='';
1.383 albertel 198: if ($target ne 'edit' && $target ne 'modified') {
199: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
200: if ($target eq 'tex') {
1.434 foxr 201:
202: # If inside a table, occurrences of \\ must be removed;
203: # else the table blows up.
204:
205: if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
206: $bodytext =~ s/\\\\//g;
207: }
1.432 foxr 208: return $bodytext.'{}';
1.383 albertel 209: }
210: } elsif ($target eq "edit" ) {
211: my $bodytext =
212: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
213: my $result = &Apache::edit::tag_start($target,$token);
214: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
215: return $result;
216: } elsif ( $target eq "modified" ) {
217: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 218: }
1.198 sakharuk 219: return $result;;
1.10 albertel 220: }
221:
222: sub end_tex {
1.44 ng 223: return '';
1.9 albertel 224: }
225:
1.400 albertel 226: sub homework_js {
1.512.2.9 raeburn 227: my ($postsubmit,$timeout);
228: if (($env{'request.course.id'}) && ($env{'request.state'} ne 'construct')) {
229: my $crstype;
230: if (&Apache::loncommon::course_type() eq 'Community') {
231: $crstype = 'community';
232: } else {
233: if ($env{'course.'.$env{'request.course.id'}.'.internal.coursecode'}) {
234: $crstype = 'official';
235: } elsif ($env{'course.'.$env{'request.course.id'}.'.internal.textbook'}) {
236: $crstype = 'textbook';
237: } else {
238: $crstype = 'unofficial';
239: }
240: }
241: $postsubmit = $env{'course.'.$env{'request.course.id'}.'.internal.postsubmit'};
242: if ($postsubmit eq '') {
243: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
244: $postsubmit = $domdefs{'postsubmit'};
245: unless ($postsubmit eq 'off') {
246: $timeout = $domdefs{$crstype.'postsubtimeout'};
247: }
248: } elsif ($postsubmit eq '0') {
249: $postsubmit = 'off';
250: } elsif ($postsubmit eq '1') {
251: $postsubmit = 'on';
252: $timeout = $env{'course.'.$env{'request.course.id'}.'.internal.postsubtimeout'};
253: if ($timeout eq '') {
254: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
255: $timeout = $domdefs{$crstype.'postsubtimeout'};
256: }
257: }
258: if ($timeout eq '') {
259: $timeout = 60;
260: }
261: } else {
262: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'request.role.domain'});
263: $postsubmit = $domdefs{'postsubmit'};
264: unless ($postsubmit eq 'off') {
265: $timeout = 60;
266: }
267: }
268: my $jstimeout = 0;
269: if ($timeout) {
270: $jstimeout = 1000 * $timeout;
271: }
1.400 albertel 272: return &Apache::loncommon::resize_textarea_js().
1.512.2.11 raeburn 273: &Apache::loncommon::colorfuleditor_js().
1.416 raeburn 274: &setmode_javascript().
1.512.2.9 raeburn 275: <<"JS";
1.400 albertel 276: <script type="text/javascript">
1.483 raeburn 277: // <![CDATA[
1.494 raeburn 278: function setSubmittedPart (part,prefix) {
279: if (typeof(prefix) == 'undefined') {
280: this.document.lonhomework.submitted.value="part_"+part;
281: } else {
282: for (var i=0;i<this.document.lonhomework.elements.length;i++) {
283: if (this.document.lonhomework.elements[i].name == prefix+'submitted') {
284: this.document.lonhomework.elements[i].value="part_"+part;
285: }
286: }
287: }
1.400 albertel 288: }
289:
1.512.2.9 raeburn 290: function disableAutoComplete (id) {
291: var field = document.getElementById(id);
292: if (field != null && field != undefined){
293: if ('autocomplete' in field) {
294: field.autocomplete = "off";
295: } else {
296: field.setAttribute("autocomplete", "off");
297: }
298: }
299: }
300:
1.400 albertel 301: function image_response_click (which, e) {
302: init_geometry();
303: if (!e) { e = window.event; } //IE
304: var input_element = document.lonhomework.elements[which];
1.401 albertel 305: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 306: var token = token_element.value;
1.401 albertel 307: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 308: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
309: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
310: var click = x+':'+y;
311: input_element.value = click;
1.485 raeburn 312: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
1.400 albertel 313: }
1.512.2.9 raeburn 314:
315: var submithandled = 0;
316: var keypresshandled = 0;
317: var postsubmit = '$postsubmit';
318:
319: \$(document).ready(function(){
320: if (postsubmit != 'off') {
321: \$(document).keypress(function(event){
322: var keycode = (event.keyCode ? event.keyCode : event.which);
323: if ((keycode == '13') && (keypresshandled == 0)) {
324: if ( \$( document.activeElement ).hasClass("LC_textline") ) {
325: keypresshandled = 1;
326: var idsArray = \$( document.activeElement ).attr("id").split(/HWVAL_/);
327: if (idsArray.length) {
328: event.preventDefault();
329: var itemsArray = idsArray[1].split(/_/);
330: var buttonId = idsArray[0]+'submit_'+itemsArray[0];
331: \$("#"+buttonId).trigger("click");
332: }
333: }
334: }
335: });
336:
337: \$(document).delegate('form :submit', 'click', function( event ) {
338: if ( \$( this ).hasClass( "LC_hwk_submit" ) ) {
339: var buttonId = this.id;
340: var timeout = $jstimeout;
341: if (submithandled == 0) {
342: submithandled = 1;
343: \$( "#msg_"+buttonId ).css({"display": "inline","background-color": "#87cefa",
344: "color": "black","padding": "2px"}) ;
1.512.2.18 raeburn 345: if (( \$(this.form).attr("id") == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
1.512.2.9 raeburn 346: if (buttonId != "all_submit") {
347: \$( ".LC_status_"+buttonId ).hide();
1.512.2.18 raeburn 348: }
349: if (( "#"+buttonId+"_pressed" ).length) {
350: \$( "#"+buttonId+"_pressed" ).val( "1" );
1.512.2.9 raeburn 351: }
352: } else {
353: \$( ".LC_status_"+buttonId ).hide();
354: }
355: \$(this.form).submit();
356: \$( ".LC_hwk_submit" ).prop( "disabled", true);
357: \$( ".LC_textline" ).prop( "readonly", "readonly");
358: event.preventDefault();
359:
360: if (timeout > 0) {
361: setTimeout(function(){
362: \$( "#msg_"+buttonId ).css({"display": "none"});
1.512.2.18 raeburn 363: if (( \$(this.form).attr("id") == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
364: if (( "#"+buttonId+"_pressed" ).length) {
365: \$( "#"+buttonId+"_pressed" ).val( "" );
1.512.2.9 raeburn 366: }
367: }
368: \$( ".LC_hwk_submit" ).prop( "disabled", false);
369: \$( ".LC_textline" ).prop( "readonly", false);
370: submithandled = 0;
371: keypresshandled = 0;
372: }, timeout);
373: }
374: return true;
375: }
376: }
377: });
378: }
379: });
380:
1.483 raeburn 381: // ]]>
1.400 albertel 382: </script>
383: JS
384: }
385:
1.416 raeburn 386: sub setmode_javascript {
387: return <<"ENDSCRIPT";
388: <script type="text/javascript">
1.485 raeburn 389: // <![CDATA[
1.416 raeburn 390: function setmode(form,probmode) {
1.512.2.13 raeburn 391: var initial = form.problemmode.value;
1.416 raeburn 392: form.problemmode.value = probmode;
393: form.submit();
1.512.2.13 raeburn 394: form.problemmode.value = initial;
1.416 raeburn 395: }
1.485 raeburn 396: // ]]>
1.416 raeburn 397: </script>
398: ENDSCRIPT
399: }
400:
1.48 albertel 401: sub page_start {
1.345 albertel 402: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
403: $extra_head)=@_;
1.159 albertel 404: my %found;
1.207 albertel 405: foreach my $taginside (@$tagstack) {
1.159 albertel 406: foreach my $taglookedfor ('html','body','form') {
407: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
408: }
409: }
410:
1.343 albertel 411: if ($target eq 'tex') {
412: return
413: &Apache::londefdef::start_html($target,$token,$tagstack,
414: $parstack,$parser,$safeeval);
415: }
416:
1.474 raeburn 417: $extra_head .= &homework_js().
418: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
419: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
1.512.2.12 raeburn 420: my %textarea_args;
421: if (($env{'request.state'} ne 'construct') ||
422: ($env{'environment.nocodemirror'})) {
423: %textarea_args = (
1.474 raeburn 424: dragmath => 'math',
425: );
1.512.2.12 raeburn 426: }
1.474 raeburn 427: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 428: }
1.478 raeburn 429: my $is_task = ($env{'request.uri'} =~ /\.task$/);
1.512.2.9 raeburn 430: my ($needs_upload,$partlist);
1.495 raeburn 431: my ($symb)= &Apache::lonnet::whichuser();
432: my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
1.478 raeburn 433: if ($is_task) {
1.495 raeburn 434: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
1.493 raeburn 435: } else {
436: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.uploadedfiletypes") ne '') {
1.495 raeburn 437: unless ($env{'request.state'} eq 'construct') {
438: my $navmap = Apache::lonnavmaps::navmap->new();
439: if (ref($navmap)) {
440: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 441: my $is_page;
442: if (ref($mapres)) {
443: $is_page = $mapres->is_page();
444: }
445: unless ($is_page) {
1.495 raeburn 446: $needs_upload = 1;
447: }
1.512.2.9 raeburn 448: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
449: my $res = $navmap->getBySymb($symb);
450: if (ref($res)) {
451: $partlist = $res->parts();
452: }
453: }
1.495 raeburn 454: }
455: }
1.493 raeburn 456: } else {
457: unless ($env{'request.state'} eq 'construct') {
458: my $navmap = Apache::lonnavmaps::navmap->new();
459: if (ref($navmap)) {
1.495 raeburn 460: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 461: my $is_page;
462: if (ref($mapres)) {
463: $is_page = $mapres->is_page();
464: }
1.512.2.9 raeburn 465: if ($is_page) {
466: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
467: my $res = $navmap->getBySymb($symb);
468: if (ref($res)) {
469: $partlist = $res->parts();
470: }
471: }
472: } else {
1.495 raeburn 473: my $res = $navmap->getBySymb($symb);
474: if (ref($res)) {
1.512.2.9 raeburn 475: $partlist = $res->parts();
1.495 raeburn 476: if (ref($partlist) eq 'ARRAY') {
477: foreach my $part (@{$partlist}) {
478: my @types = $res->responseType($part);
479: my @ids = $res->responseIds($part);
480: for (my $i=0; $i < scalar(@ids); $i++) {
481: if ($types[$i] eq 'essay') {
482: my $partid = $part.'_'.$ids[$i];
483: if (&Apache::lonnet::EXT("resource.$partid.uploadedfiletypes") ne '') {
484: $needs_upload = 1;
485: last;
486: }
1.493 raeburn 487: }
488: }
489: }
1.495 raeburn 490: }
491: }
1.493 raeburn 492: }
493: }
494: }
495: }
1.495 raeburn 496: if ($needs_upload) {
1.512.2.17 raeburn 497: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js().
498: '<script type="text/javascript" '.
499: 'src="/res/adm/includes/file_upload.js"></script>';
1.495 raeburn 500: }
1.478 raeburn 501: }
1.425 raeburn 502:
1.344 albertel 503: my %body_args;
504: if (defined($found{'html'})) {
505: $body_args{'skip_phases'}{'head'}=1;
506: } else {
1.343 albertel 507:
1.345 albertel 508: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 509:
1.379 albertel 510: $extra_head .= &Apache::londefdef::generate_css_links();
511:
1.384 albertel 512: if ($env{'request.state'} eq 'construct') {
1.343 albertel 513: $extra_head.=&Apache::edit::js_change_detection().
514: "<script type=\"text/javascript\">\n".
515: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
516: &Apache::loncommon::browser_and_searcher_javascript().
517: "\n</script>\n";
1.512.2.9 raeburn 518: if ($target eq 'edit') {
519: $extra_head .= &Apache::edit::js_update_linknum();
520: }
1.343 albertel 521: }
1.159 albertel 522: }
1.343 albertel 523:
1.446 bisitz 524: my $pageheader = '';
1.344 albertel 525: if (defined($found{'body'})) {
526: $body_args{'skip_phases'}{'body'}=1;
527: } elsif (!defined($found{'body'})
528: && $env{'request.state'} eq 'construct') {
1.343 albertel 529: if ($target eq 'web' || $target eq 'edit') {
1.512.2.3 raeburn 530: # Breadcrumbs for Authoring Space
1.450 bisitz 531: &Apache::lonhtmlcommon::clear_breadcrumbs();
532: &Apache::lonhtmlcommon::add_breadcrumb({
1.512.2.3 raeburn 533: 'text' => 'Authoring Space',
1.497 raeburn 534: 'href' => &Apache::loncommon::authorspace($env{'request.uri'}),
1.450 bisitz 535: });
1.460 droeschl 536: # breadcrumbs (and tools) will be created
537: # in start_page->bodytag->innerregister
538:
1.450 bisitz 539: # FIXME Where are we?
540: # &Apache::lonhtmlcommon::add_breadcrumb({
541: # 'text' => 'Problem Editing', # 'Problem Testing'
542: # 'href' => '',
543: # });
1.460 droeschl 544: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 545: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 546: }
1.272 albertel 547: } elsif (!defined($found{'body'})) {
1.343 albertel 548: my %add_entries;
1.159 albertel 549: my $background=&Apache::lonxml::get_param('background',$parstack,
550: $safeeval);
1.343 albertel 551: if ($background ne '' ) {
552: $add_entries{'background'} = $background;
553: }
1.344 albertel 554:
1.290 albertel 555: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
556: $safeeval);
1.446 bisitz 557: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 558:
1.446 bisitz 559: $body_args{'bgcolor'} = $bgcolor;
560: # $body_args{'no_title'} = 1;
561: $body_args{'force_register'} = 1;
562: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 563: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 564: $body_args{'only_body'} = 1;
1.512.2.7 raeburn 565: } elsif ($target eq 'web') {
566: $body_args{'print_suppress'} = 1;
1.446 bisitz 567: }
1.344 albertel 568: }
1.365 albertel 569: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 570: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
571: \%body_args);
1.446 bisitz 572: $page_start .= $pageheader;
1.462 raeburn 573: if (!defined($found{'body'})
574: && $env{'request.state'} ne 'construct'
575: && ($target eq 'web' || $target eq 'webgrade')) {
576:
577: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
578: if ($symb eq '' && !$publicuser) {
579: $page_start .= '<p class="LC_info">'
580: .&mt('Browsing resource, all submissions are temporary.')
581: .'</p>';
1.457 bisitz 582: }
1.344 albertel 583: }
584:
1.409 albertel 585: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 586: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 587: }
588: my $form_tag_start;
589: if (!defined($found{'form'})) {
1.337 albertel 590: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 591: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 592: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 593: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 594: $form_tag_start.=$uri.'" ';
595: if ($target eq 'edit') {
596: $form_tag_start.=&Apache::edit::form_change_detection();
597: }
1.493 raeburn 598: my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
599: my ($path,$multiresp) =
600: &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
1.495 raeburn 601: if (($is_task) || ($needs_upload)) {
602: $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
1.478 raeburn 603: }
1.368 albertel 604: $form_tag_start.='>'."\n";
1.355 albertel 605:
606: if ($symb =~ /\S/) {
607: $symb=
608: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
609: $form_tag_start.=
1.368 albertel 610: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 611: }
1.159 albertel 612: }
1.512.2.9 raeburn 613: return ($page_start,$form_tag_start,$partlist);
1.105 albertel 614: }
615:
1.141 matthew 616: #use Time::HiRes();
1.105 albertel 617: sub get_resource_name {
1.159 albertel 618: my ($parstack,$safeeval)=@_;
1.388 foxr 619: my $name;
1.204 albertel 620: if (defined($Apache::lonhomework::name)) {
1.388 foxr 621: $name = $Apache::lonhomework::name;
622: } else {
623: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 624: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 625: if ($name eq '') {
626: $name=&Apache::lonnet::EXT('resource.title');
627: if ($name eq 'con_lost') { $name = ''; }
628: }
629: if ($name!~/\S+/) {
630: $name=$env{'request.uri'};
631: $name=~s-.*/([^/]+)$-$1-;
632: }
633: # The name has had html tags escaped:
634:
635: $name=~s/</</gs;
636: $name=~s/>/>/gs;
637:
638: $Apache::lonhomework::name=$name;
1.204 albertel 639: }
1.159 albertel 640: return $name;
1.105 albertel 641: }
642:
643: sub setup_rndseed {
1.512.2.9 raeburn 644: my ($safeeval,$target,$probpartlist)=@_;
1.367 albertel 645: my ($symb)=&Apache::lonnet::whichuser();
1.512.2.19! raeburn 646: my ($questiontype,$set_safespace,$rndseed,$numtries,$reqtries);
1.479 raeburn 647: if ($target eq 'analyze') {
648: $questiontype = $env{'form.grade_questiontype'};
649: }
650: unless (defined($questiontype)) {
651: $questiontype = $Apache::lonhomework::type;
652: }
1.512.2.19! raeburn 653: if ($Apache::lonhomework::type eq 'randomizetry') {
! 654: my $partfortries = $Apache::inputtags::part;
! 655: if (ref($probpartlist) eq 'ARRAY') {
! 656: if ((@{$probpartlist} == 1) && ($probpartlist->[0] ne $Apache::inputtags::part)) {
! 657: $partfortries = $probpartlist->[0];
! 658: }
! 659: }
! 660: $numtries = $Apache::lonhomework::history{"resource.$partfortries.tries"};
! 661: $reqtries = &Apache::lonnet::EXT("resource.$partfortries.randomizeontries");
! 662: }
1.512.2.14 raeburn 663: if (($env{'request.state'} eq "construct")
664: || ($symb eq '')
665: || ($Apache::lonhomework::type eq 'practice')
666: || ($Apache::lonhomework::history{'resource.CODE'})
667: || (($env{'form.code_for_randomlist'}) && ($target eq 'analyze'))) {
1.316 www 668: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 669: ['rndseed']);
1.284 albertel 670: $rndseed=$env{'form.rndseed'};
1.159 albertel 671: if (!$rndseed) {
1.162 albertel 672: $rndseed=$Apache::lonhomework::history{'rndseed'};
673: if (!$rndseed) {
674: $rndseed=time;
675: }
1.512.2.14 raeburn 676: unless ($env{'form.code_for_randomlist'}) {
677: $env{'form.rndseed'}=$rndseed;
678: }
1.162 albertel 679: }
1.479 raeburn 680: if (($env{'request.state'} eq "construct") &&
681: ($Apache::lonhomework::type eq 'randomizetry')) {
1.512.2.19! raeburn 682: if ($numtries) {
! 683: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
! 684: my $inc = int($numtries/$reqtries);
! 685: $rndseed += $inc;
! 686: } else {
! 687: $rndseed += $numtries;
! 688: }
1.479 raeburn 689: }
1.480 raeburn 690: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 691: }
1.374 albertel 692: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
693: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 694: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 695: srand(time);
696: $rndseed=int(rand(2100000000));
1.284 albertel 697: $env{'form.rndseed'}=$rndseed;
698: delete($env{'form.resetdata'});
699: delete($env{'form.newrandomization'});
1.159 albertel 700: }
1.488 www 701: $rndseed=~s/\,/\:/g;
702: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 703: if (defined($rndseed)) {
704: my ($c1,$c2)=split(/\:/,$rndseed);
705: unless ($c2) { $c2=0; }
706: unless (($c1==int($c1)) && ($c2==int($c2))) {
707: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
708: }
1.187 albertel 709: }
1.512.2.14 raeburn 710: if (($env{'form.code_for_randomlist'}) && ($target eq 'analyze')) {
711: $env{'form.CODE'} = $env{'form.code_for_randomlist'};
712: $rndseed=&Apache::lonnet::rndseed();
713: undef($env{'form.CODE'});
714: } elsif ($Apache::lonhomework::history{'resource.CODE'}) {
1.247 albertel 715: $rndseed=&Apache::lonnet::rndseed();
716: }
1.479 raeburn 717: $set_safespace = 1;
718: } elsif ($questiontype eq 'randomizetry') {
719: if ($target eq 'analyze') {
720: if (defined($env{'form.grade_rndseed'})) {
721: $rndseed = $env{'form.grade_rndseed'};
722: }
723: }
724: unless (($target eq 'analyze') && (defined($rndseed))) {
725: $rndseed=&Apache::lonnet::rndseed();
1.512.2.19! raeburn 726: my $curr_try = $numtries;
1.479 raeburn 727: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
728: $curr_try ++;
729: }
730: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
731: $rndseed = $1;
732: }
733: if ($curr_try) {
734: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
735: my $inc = int(($curr_try-1)/$reqtries);
736: $rndseed += $inc;
737: } else {
738: $rndseed += $curr_try;
739: }
740: }
741: }
742: $set_safespace = 1;
1.512.2.9 raeburn 743: if ($target eq 'grade') {
744: $Apache::lonhomework::rawrndseed = $rndseed;
745: }
1.479 raeburn 746: }
747: if ($set_safespace) {
748: if ($safeeval) {
749: &Apache::lonxml::debug("Setting rndseed to $rndseed");
750: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
751: }
752: }
753: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
754: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 755: }
756: return $rndseed;
1.105 albertel 757: }
758:
1.268 albertel 759: sub remember_problem_state {
760: return '
1.284 albertel 761: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
762: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
763: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 764: }
765:
1.487 www 766: sub problem_edit_action_button {
767: my ($name,$action,$accesskey,$text,$flag)=@_;
768: my $actionscript="setmode(this.form,'$action')";
769: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
770: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
771: }
772:
1.423 www 773: sub problem_edit_buttons {
1.487 www 774: my ($mode)=@_;
1.512.2.11 raeburn 775: # Buttons that save
776: my $result = '<div style="float:right">';
777: if ($mode eq 'editxml') {
778: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
779: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
780: } else {
781: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
782: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
783: }
784: $result.="\n</div>\n";
1.487 www 785: # Buttons that do not save
1.512.2.11 raeburn 786: $result .= '<div>'.
1.487 www 787: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
788: if ($mode eq 'editxml') {
789: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
790: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
1.512.2.11 raeburn 791: if ($env{'environment.nocodemirror'}) {
792: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
793: }
1.487 www 794: } else {
795: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
796: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
797: }
798: $result.="\n</div>";
799: return $result;
1.423 www 800: }
801:
802: sub problem_edit_header {
1.512.2.11 raeburn 803: my ($mode)=@_;
804: my $return = '<input type="hidden" name="submitted" value="edit" />'.
1.487 www 805: &remember_problem_state('edit').'
1.512.2.11 raeburn 806: <div class="LC_edit_problem_header">
807: <div class="LC_edit_problem_header_title">
808: '.&mt('Problem Editing').$mode.&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
809: </div><div class="LC_edit_actionbar" id="actionbar">'.
810: '<input type="hidden" name="problemmode" value="saveedit" />'.
811: &problem_edit_buttons();
812:
813: $return .= '</div></div>' . &Apache::lonxml::message_location();
814: $return .= '<link rel="stylesheet" href="/adm/codemirror/codemirror-combined.css" />
815: <script type="text/javascript" src="/adm/codemirror/codemirror-compressed-colorful.js"></script>';
816:
817: $return .= '<script type="text/javascript" src="/adm/jQuery/addons/jquery-scrolltofixed.js"></script>
818: <script type="text/javascript">
819: // unless internet explorer
820: if (!(window.navigator.appName == "Microsoft Internet Explorer" && (document.documentMode || document.compatMode))){
821: $(document).ready(
822: function() {
823: $(\'.LC_edit_actionbar\').scrollToFixed(
824: {
825: fixed: function(){
826: //$(this).find(\'.LC_edit_actionbar\').css(\'height\', \'31px\');
827: $(this).find(\'.LC_edit_actionbar\');
828: }
829: }
830: );
831: }
832: );
833: }
834: </script>
835: <table id="LC_edit_problem_colorful" border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
836: return $return;
1.105 albertel 837: }
838:
1.512.2.11 raeburn 839:
1.105 albertel 840: sub problem_edit_footer {
1.512.2.11 raeburn 841: my $resource = $env{'request.ambiguous'};
1.412 albertel 842: return '</td></tr></table><br />
843: <div class="LC_edit_problem_footer">
1.453 bisitz 844: <hr />'.
1.423 www 845: &problem_edit_buttons().'
1.459 bisitz 846: <hr style="clear:both;" />
1.512.2.11 raeburn 847: <script type="text/javascript">
848: restoreState("'.$resource.'");
849: restoreScrollPosition("'.$resource.'");
850: </script>
1.412 albertel 851: </div>
852: '.
1.342 albertel 853: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 854: }
855:
1.235 albertel 856: sub option {
857: my ($value,$name) = @_;
858: my $result ="<option value='".$value."' ";
1.284 albertel 859: if ($env{'form.'.$name} eq $value) {
1.235 albertel 860: $result.=" selected='on' ";
861: }
862: $result.='>';
863: return $result;
864: }
865:
1.105 albertel 866: sub problem_web_to_edit_header {
1.159 albertel 867: my ($rndseed)=@_;
1.406 albertel 868: my $result .= '<div class="LC_edit_problem_header">';
869:
870: if (!$Apache::lonhomework::parsing_a_task) {
871: $result .=
872: '<div class="LC_edit_problem_header_title">'.
873: &mt('Problem Testing').
874: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
875: '</div>';
876: } else {
877: $result .=
878: '<div class="LC_edit_problem_header_title">'.
879: &mt('Task Testing').
880: '</div>';
881: }
882:
1.315 albertel 883: my $show_all_foils_text =
884: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 885: &mt('Show All Instances')
886: : &mt('Show All Foils');
1.315 albertel 887:
1.452 bisitz 888: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
889: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 890: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 891: $show_all.= ' /> '.$show_all_foils_text
892: .'</label></span>';
1.406 albertel 893:
894:
1.384 albertel 895:
1.406 albertel 896: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 897: if (!$Apache::lonhomework::parsing_a_task) {
898: $result.="
1.406 albertel 899: <div class='LC_edit_problem_header_row1'>
900: <span class=\"LC_nobreak\">
1.405 albertel 901: ".&mt("Problem Status:")."
1.235 albertel 902: <select name='problemstate'>
1.270 albertel 903: <option value=''></option>
1.235 albertel 904: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
905: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
906: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
907: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
908: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
909: </select>
1.406 albertel 910: </span>
911: <span class=\"LC_nobreak\">
1.405 albertel 912: ".&mt("Problem Type:")."
1.235 albertel 913: <select name='problemtype'>
1.270 albertel 914: <option value=''></option>
1.512.2.1 raeburn 915: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 916: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 917: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 918: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
919: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
920: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 921: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 922: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 923: </select>
1.406 albertel 924: </span>
925: $show_all
926: </div>
927: <div class='LC_edit_problem_header_row2'>
928: <span class=\"LC_nobreak\">
1.405 albertel 929: ".&mt("Feedback Mode:")."
1.235 albertel 930: <select name='problemstatus'>
931: <option value=''></option>
1.242 albertel 932: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.512.2.6 raeburn 933: ".&option('no', 'problemstatus').&mt("Don't Show Incorrect/Correct Feedback")."</option>
1.405 albertel 934: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 935: </select>
1.406 albertel 936: </span>
937: ";
938:
1.376 albertel 939: } elsif ($Apache::lonhomework::parsing_a_task) {
940: $result.="
1.406 albertel 941: <div class='LC_edit_problem_header_row1'>
942: <span class=\"LC_nobreak\">
1.405 albertel 943: ".&mt("Problem Status:")."
1.376 albertel 944: <select name='problemstate'>
945: <option value=''></option>
946: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
947: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
948: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
949: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
950: </select>
1.406 albertel 951: </span>
952: $show_all
953: ";
954: }
955: $result.='
956: <span class="LC_nobreak">
957: '.&mt('Apply style file: ').'
958: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
959: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
960: </span>
1.422 www 961: </div>
962: <div class="LC_edit_problem_header_row1">'.
963: &Apache::lonxml::renderingoptions().'
1.406 albertel 964: </div>
965: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
966: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
967: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
968: </div>
1.453 bisitz 969: <hr />
1.406 albertel 970: <div class="LC_edit_problem_header_randomize_row">
971: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
972: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 973: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 974: $rndseed.'"
975: onchange="javascript:document.lonhomework.changerandseed.click()" />';
976:
977: if (!$Apache::lonhomework::parsing_a_task) {
978: my $numtoanalyze=$env{'form.numtoanalyze'};
979: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 980: $result .= '<span class="LC_nobreak">'.
981: &mt('[_1] for [_2] versions.',
1.416 raeburn 982: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 983: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
984: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 985: $numtoanalyze.'" size="5" />').
986: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
987: '</span>';
988:
1.313 albertel 989: }
1.406 albertel 990:
991: $result.='
992: </div>
1.453 bisitz 993: <hr />
1.447 bisitz 994: <div>';
1.416 raeburn 995: $result.='<input type="hidden" name="problemmode" value="view" />';
996: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
997: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
998: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
999: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 1000: $result.='
1001: </div>
1.453 bisitz 1002: <hr />
1.409 albertel 1003: '.&Apache::lonxml::message_location().'
1.406 albertel 1004: </div>';
1.159 albertel 1005: return $result;
1.48 albertel 1006: }
1007:
1.65 albertel 1008: sub initialize_storage {
1.357 albertel 1009: my ($given_symb) = @_;
1.353 albertel 1010: undef(%Apache::lonhomework::results);
1011: undef(%Apache::lonhomework::history);
1.357 albertel 1012: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1013: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 1014:
1015: # anonymous users (CODEd exams) have no data
1016: if ($name eq 'anonymous'
1017: && !defined($domain)) {
1018: return;
1019: }
1020:
1.333 albertel 1021: if ($env{'request.state'} eq 'construct'
1022: || $symb eq ''
1023: || $Apache::lonhomework::type eq 'practice') {
1024:
1025: my $namespace = $symb || $env{'request.uri'};
1026: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 1027: ($env{'form.resetdata'} eq &mt('New Problem Variation')
1028: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 1029: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1030: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
1031: &Apache::lonxml::debug("Attempt reset");
1032: }
1.159 albertel 1033: %Apache::lonhomework::history=
1.333 albertel 1034: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.512.2.9 raeburn 1035: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1036: &Apache::lonxml::debug("Return message of $temp");
1037: } else {
1038: %Apache::lonhomework::history=
1039: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1040: }
1.353 albertel 1041:
1.159 albertel 1042: #ignore error conditions
1.512.2.9 raeburn 1043: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1044: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 1045: }
1046:
1.435 jms 1047: =pod
1048:
1049: =item finalize_storage()
1050:
1.512.2.9 raeburn 1051: Stores away the result hash to a student's environment;
1052: checks form.grade_ for specific values, otherwise stores
1053: to the running user's environment.
1054:
1055: &check_correctness_changes() is called in two circumstances
1056: in which the results hash is to be stored permanently, for
1057: grading triggered by a student's submission, where feedback on
1058: correctness is to be provided to the student.
1059:
1060: 1. Immediately prior to storing the results hash
1061:
1062: To handle the case where a student's submission (and award) were
1063: stored after history was retrieved in &initialize_storage(), e.g.,
1064: if a student submitted answers in quick succession (e.g., from
1065: multiple tabs). &Apache::inputtags::hidealldata() is called for
1066: any parts with out-of-order storage (i.e., correct then incorrect,
1067: where awarded >= 1 when correct).
1068:
1069: 2. Immediately after storing the results hash
1070:
1071: To handle the case where lond on the student's homeserver returns
1072: delay:N -- where N is the number of transactions between the last
1073: retrieved in &initialize_storage() and the last stored immediately
1074: before permanent storage of the current transaction via
1075: lond::store_handler(). &Apache::grades::makehidden() is called
1076: for any parts with out-of-order storage (i.e., correct then incorrect,
1077: where awarded >= 1 when correct).
1078:
1079: Will call &store_aggregates() to increment totals for attempts,
1080: students, and corrects, if running user has student role.
1.435 jms 1081:
1082: =cut
1083:
1084:
1.65 albertel 1085: sub finalize_storage {
1.357 albertel 1086: my ($given_symb) = @_;
1.159 albertel 1087: my $result;
1.289 albertel 1088: if (%Apache::lonhomework::results) {
1.323 albertel 1089: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
1090: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 1091: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1092: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 1093: if ($env{'request.state'} eq 'construct'
1094: || $symb eq ''
1095: || $Apache::lonhomework::type eq 'practice') {
1096: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 1097: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 1098: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 1099: $namespace,'',$domain,$name);
1.159 albertel 1100: &Apache::lonxml::debug('Construct Store return message:'.$result);
1101: } else {
1.512.2.9 raeburn 1102: my ($laststore,$checkedparts,@parts,%postcorrect);
1103: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1104: (!$Apache::lonhomework::scantronmode) && (!defined($env{'form.grade_symb'})) &&
1105: (!defined($env{'form.grade_courseid'}))) {
1106: if ($Apache::lonhomework::history{'version'}) {
1107: $laststore = $Apache::lonhomework::history{'version'}.'='.
1108: $Apache::lonhomework::history{'timestamp'};
1109: } else {
1110: $laststore = '0=0';
1111: }
1112: my %record = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1113: if ($record{'version'}) {
1114: my ($newversion,$oldversion,$oldtimestamp);
1115: if ($Apache::lonhomework::history{'version'}) {
1116: $oldversion = $Apache::lonhomework::history{'version'};
1117: $oldtimestamp = $Apache::lonhomework::history{'timestamp'};
1118: } else {
1119: $oldversion = 0;
1120: $oldtimestamp = 0;
1121: }
1122: if ($record{'version'} > $oldversion) {
1123: if ($record{'timestamp'} >= $oldtimestamp) {
1124: $laststore = $record{'version'}.'='.$record{'timestamp'};
1125: $newversion = $record{'version'} + 1;
1126: $checkedparts = 1;
1127: foreach my $key (keys(%Apache::lonhomework::results)) {
1128: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1129: my $part = $1;
1130: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1131: push(@parts,$part);
1132: }
1133: }
1134: }
1135: if (@parts) {
1136: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1137: \%record,\@parts,$newversion,
1138: $oldversion);
1139: if (@parts_to_hide) {
1140: foreach my $part (@parts_to_hide) {
1141: $postcorrect{$part} = 1;
1142: &Apache::inputtags::hidealldata($part);
1143: }
1144: }
1145: }
1146: }
1147: }
1148: }
1149: }
1.159 albertel 1150: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
1.512.2.9 raeburn 1151: $symb,$courseid,$domain,$name,$laststore);
1152: if ($result =~ /^delay\:(\d+)$/) {
1153: my $numtrans = $1;
1154: my ($oldversion) = split(/=/,$laststore);
1155: if ($numtrans) {
1156: my $newversion = $oldversion + 1 + $numtrans;
1157: my @possparts;
1158: if ($checkedparts) {
1159: foreach my $part (@parts) {
1160: unless ($postcorrect{$part}) {
1161: push(@possparts,$part);
1162: }
1163: }
1164: } else {
1165: foreach my $key (keys(%Apache::lonhomework::results)) {
1166: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1167: my $part = $1;
1168: unless ($postcorrect{$part}) {
1169: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1170: push(@possparts,$part);
1171: }
1172: }
1173: }
1174: }
1175: }
1176: if (@possparts) {
1177: my %newrecord = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1178: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1179: \%newrecord,\@possparts,$newversion,
1180: $oldversion);
1181: if (@parts_to_hide) {
1182: my $partslist = join(',',@parts_to_hide);
1183: &Apache::grades::makehidden($newversion,$partslist,\%newrecord,$symb,$domain,$name,1);
1184: }
1185: }
1186: }
1187: }
1.159 albertel 1188: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 1189: &store_aggregates($symb,$courseid);
1.159 albertel 1190: }
1.323 albertel 1191: } else {
1192: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 1193: }
1.159 albertel 1194: return $result;
1.65 albertel 1195: }
1196:
1.435 jms 1197: =pod
1198:
1.512.2.9 raeburn 1199: =item check_correctness_changes()
1200:
1201: For all parts for which current results contain a solved status
1202: of "incorrect_attempted", check if there was a transaction in which
1203: solved was set to "correct_by_student" in the time since the last
1204: transaction (retrieved when &initialize_storage() was called i.e.,
1205: when &start_problem() was called), unless:
1206: (a) questiontype parameter is set to survey or anonymous survey (+/- credit)
1207: (b) problemstatus is set to no or no_feedback_ever
1208: If such a transaction exists, and did not occur after "reset status"
1209: by a user with grading privileges, then the current transaction is an
1210: example of an out-of-order transaction (i.e., incorrect occurring after
1211: correct). Accordingly, the current transaction should be hidden.
1212:
1213: =cut
1214:
1215:
1216: sub check_correctness_changes {
1217: my ($symb,$courseid,$domain,$name,$record,$parts,$newversion,$oldversion) = @_;
1218: my @parts_to_hide;
1219: unless ((ref($record) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
1220: return @parts_to_hide;
1221: }
1222: if (@{$parts}) {
1223: my $usec;
1224: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1225: ($env{'request.course.id'} eq $courseid)) {
1226: $usec = $env{'request.course.sec'};
1227: } else {
1228: $usec = &Apache::lonnet::getsection($domain,$name,$courseid);
1229: }
1230: foreach my $id (@{$parts}) {
1231: next if (($Apache::lonhomework::results{'resource.'.$id.'.type'} =~ /survey/) ||
1232: (&Apache::lonnet::EXT("resource.$id.problemstatus",$symb,
1233: $domain,$name,$usec,undef,$courseid) =~ /^no/));
1234: my $reset;
1235: for (my $i=$newversion-1; $i>=$oldversion; $i--) {
1236: if (($record->{$i.':resource.'.$id.'.regrader'}) &&
1237: ($record->{$i.':resource.'.$id.'.tries'} eq '') &&
1238: ($record->{$i.':resource.'.$id.'.award'} eq '')) {
1239: $reset = 1;
1240: } elsif (($record->{$i.":resource.$id.solved"} eq 'correct_by_student') &&
1241: ($record->{$i.":resource.$id.awarded"} >= 1)) {
1242: unless ($reset) {
1243: push(@parts_to_hide,$id);
1244: last;
1245: }
1246: }
1247: }
1248: }
1249: }
1250: return @parts_to_hide;
1251: }
1252:
1253: =pod
1254:
1.435 jms 1255: item store_aggregates()
1256:
1257: Sends hash of values to be incremented in nohist_resourcetracker.db
1258: for the course. Increments total number of attempts, unique students
1259: and corrects for each part for an instance of a problem, as appropriate.
1260:
1261: =cut
1262:
1.285 raeburn 1263: sub store_aggregates {
1264: my ($symb,$courseid) = @_;
1.479 raeburn 1265: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 1266: my @parts;
1.288 albertel 1267: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
1268: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 1269: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 1270: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 1271: push(@parts, $1);
1.285 raeburn 1272: }
1273: }
1.286 albertel 1274: foreach my $part (@parts) {
1.470 raeburn 1275: if ($env{'request.role'} =~/^st/) {
1276: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
1277: eq 'APPROX_ANS' ||
1278: $Apache::lonhomework::results{'resource.'.$part.'.award'}
1279: eq 'EXACT_ANS') {
1280: $aggregate{$symb."\0".$part."\0correct"} = 1;
1281: }
1282: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1283: $aggregate{$symb."\0".$part."\0users"} = 1;
1284: } else {
1285: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1286: if ($last_reset) {
1287: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1288: $aggregate{$symb."\0".$part."\0users"} = 1;
1289: }
1290: }
1291: }
1292: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 1293: }
1.470 raeburn 1294: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 1295: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
1296: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
1297: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
1298: $randtrycounter{$symb."\0".$part} = 1;
1299: } else {
1300: $anoncounter{$symb."\0".$part} = 1;
1301: }
1.470 raeburn 1302: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
1303: if ($needsrelease) {
1304: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
1305: if ($curr_required eq '') {
1.471 raeburn 1306: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1307: } else {
1308: my ($currmajor,$currminor) = split(/\./,$curr_required);
1309: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
1310: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 1311: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1312: }
1.292 raeburn 1313: }
1314: }
1.285 raeburn 1315: }
1316: }
1.512.2.9 raeburn 1317: if (keys(%aggregate) > 0) {
1.289 albertel 1318: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 1319: $cdomain,$cname);
1320: }
1.472 raeburn 1321: if (keys(%anoncounter) > 0) {
1.481 raeburn 1322: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
1323: $cdomain,$cname);
1.472 raeburn 1324: }
1.479 raeburn 1325: if (keys(%randtrycounter) > 0) {
1.481 raeburn 1326: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
1327: $cdomain,$cname);
1.479 raeburn 1328: }
1.292 raeburn 1329: }
1.289 albertel 1330:
1.65 albertel 1331: sub checkout_msg {
1.211 albertel 1332: my %lt=&Apache::lonlocal::texthash(
1333: 'resource'=>'The resource needs to be checked out',
1334: 'id_expln'=>'As a resource gets checked out, a unique timestamped ID is given to it, and a permanent record is left in the system.',
1335: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
1.512.2.1 raeburn 1336: 'checkout'=>'Check out Exam for Viewing',
1337: 'checkout?'=>'Check out Exam?');
1.352 albertel 1338: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 1339: return (<<ENDCHECKOUT);
1.211 albertel 1340: <h2>$lt{'resource'}</h2>
1341: <p>$lt{'id_expln'}</p>
1.449 bisitz 1342: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 1343: <form name="checkout" method="post" action="$uri">
1.91 albertel 1344: <input type="hidden" name="doescheckout" value="yes" />
1.512.2.4 raeburn 1345: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onclick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 1346: </form>
1347: ENDCHECKOUT
1348: }
1349:
1.252 albertel 1350: sub firstaccess_msg {
1.253 albertel 1351: my ($time,$symb)=@_;
1.414 albertel 1352: my $result;
1353: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1354: if ($interval[1] eq 'map') {
1355: my ($map)=&Apache::lonnet::decode_symb($symb);
1356: my $foldertitle=&Apache::lonnet::gettitle($map);
1357:
1358: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 1359: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
1360: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1361: ,$foldertitle,$time)."</p>";
1.414 albertel 1362: } elsif ($interval[1] eq 'course') {
1363: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 1364: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 1365: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 1366: ,$course,$time)."</p>";
1.414 albertel 1367: } else {
1368: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1369: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1370: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1371: ,$title,$time)."</p>";
1.414 albertel 1372: }
1.352 albertel 1373: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1374: my $buttontext = &mt('Show Resource');
1375: my $timertext = &mt('Start Timer?');
1.414 albertel 1376: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1377: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1378: <input type="hidden" name="markaccess" value="yes" />
1.512.2.4 raeburn 1379: <input type="button" name="accessbutton" value="$buttontext" onclick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1380: </form>
1381: ENDCHECKOUT
1.414 albertel 1382: return $result;
1.252 albertel 1383: }
1384:
1.204 albertel 1385: sub init_problem_globals {
1386: my ($type)=@_;
1387: #initialize globals
1.308 foxr 1388: # For problems, we start out in part 0 (outside a <part> tag).
1389: # and part 0 is used to describe the main body of the <problem>
1390: #
1.204 albertel 1391: if ($type eq 'problem') {
1392: $Apache::inputtags::part='0';
1393: @Apache::inputtags::partlist=('0');
1.405 albertel 1394: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1395: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1396:
1.266 albertel 1397: } elsif ($type eq 'library') {
1.204 albertel 1398: $Apache::inputtags::part='';
1399: @Apache::inputtags::partlist=();
1.405 albertel 1400: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1401: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1402:
1.304 albertel 1403: } elsif ($type eq 'Task') {
1404: $Apache::inputtags::part='0';
1405: @Apache::inputtags::partlist=('0');
1.405 albertel 1406: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1407: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1408: }
1.477 www 1409: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1410: @Apache::inputtags::responselist = ();
1411: @Apache::inputtags::importlist = ();
1412: @Apache::inputtags::previous=();
1413: @Apache::inputtags::previous_version=();
1.512.2.10 raeburn 1414: $Apache::inputtags::leniency='';
1.204 albertel 1415: $Apache::structuretags::printanswer='No';
1416: @Apache::structuretags::whileconds=();
1417: @Apache::structuretags::whilebody=();
1418: @Apache::structuretags::whileline=();
1419: $Apache::lonhomework::scantronmode=0;
1420: undef($Apache::lonhomework::name);
1.358 albertel 1421: undef($Apache::lonhomework::default_type);
1422: undef($Apache::lonhomework::type);
1.204 albertel 1423: }
1424:
1425: sub reset_problem_globals {
1426: my ($type)=@_;
1427: undef(%Apache::lonhomework::history);
1428: undef(%Apache::lonhomework::results);
1429: undef($Apache::inputtags::part);
1.512.2.10 raeburn 1430: undef($Apache::inputtags::leniency);
1.498 raeburn 1431: if ($type eq 'Task') {
1432: undef($Apache::inputtags::slot_name);
1.512.2.9 raeburn 1433: } elsif ($type eq 'problem') {
1434: undef($Apache::lonhomework::rawrndseed);
1.498 raeburn 1435: }
1.208 albertel 1436: #don't undef this, lonhomework.pm takes care of this, we use this to
1437: #detect if we try to do 2 problems in one file
1438: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1439: undef($Apache::lonhomework::name);
1.358 albertel 1440: undef($Apache::lonhomework::default_type);
1441: undef($Apache::lonhomework::type);
1442: undef($Apache::lonhomework::scantronmode);
1443: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1444: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1445: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1446: }
1447:
1.241 albertel 1448: sub set_problem_state {
1.240 albertel 1449: my ($part)=@_;
1.284 albertel 1450: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1451: $Apache::lonhomework::history{"resource.$part.solved"}=
1452: 'correct_by_student';
1453: }
1454: }
1455:
1.241 albertel 1456: sub get_problem_status {
1457: my ($part)=@_;
1.267 albertel 1458: my $problem_status;
1.284 albertel 1459: if ($env{'request.state'} eq 'construct' &&
1460: defined($env{'form.problemstatus'})) {
1461: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1462: } else {
1463: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1464: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1465: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1466: }
1467: return $problem_status;
1468: }
1469:
1.9 albertel 1470: sub start_problem {
1.326 albertel 1471: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1472:
1.311 foxr 1473: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1474: if (!$Apache::lonxml::metamode) {
1475: &Apache::lonxml::startredirection();
1476: }
1.311 foxr 1477:
1.308 foxr 1478: # Problems don't nest and we don't allow more than one <problem> in
1479: # a .problem file.
1480: #
1.184 albertel 1481: if ( $Apache::inputtags::part ne '' ||
1482: $Apache::lonhomework::parsing_a_problem) {
1483: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1484: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1485: return '';
1486: }
1.184 albertel 1487:
1488: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1489: &init_problem_globals('problem');
1.166 albertel 1490:
1.284 albertel 1491: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1492: $Apache::lonhomework::scantronmode=1;
1493: }
1.161 albertel 1494:
1.159 albertel 1495: if ($target ne 'analyze') {
1.415 raeburn 1496: my $type = &Apache::lonnet::EXT('resource.0.type');
1497: $Apache::lonhomework::type=$type;
1.284 albertel 1498: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1499: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1500: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1501: }
1.332 albertel 1502: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1503: }
1.164 albertel 1504: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1505: my $uri=$env{'request.uri'};
1.159 albertel 1506: if ($uri=~/\.(\w+)$/) {
1507: $Apache::lonhomework::type=$1;
1508: &Apache::lonxml::debug("Using type of $1");
1509: } else {
1510: $Apache::lonhomework::type='problem';
1511: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1512: }
1.87 albertel 1513: }
1.301 albertel 1514: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1515:
1.363 albertel 1516: &initialize_storage();
1.389 albertel 1517: if ($target ne 'analyze'
1518: && $env{'request.state'} eq 'construct') {
1519: &set_problem_state('0');
1520: }
1521:
1.366 albertel 1522: if ($target eq 'web') {
1523: &Apache::lonxml::debug(" grading history ");
1524: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1525: }
1.363 albertel 1526:
1.159 albertel 1527: #added vars to the scripting enviroment
1.213 albertel 1528: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1529: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1530: &Apache::run::run($expression,$safeeval);
1.159 albertel 1531: my $status;
1532: my $accessmsg;
1.508 raeburn 1533: my $resource_due;
1.159 albertel 1534:
1.343 albertel 1535: my $name= &get_resource_name($parstack,$safeeval);
1.512.2.16 raeburn 1536: my ($result,$form_tag_start,$slot_name,$slot,$probpartlist,$firstaccres);
1.506 raeburn 1537:
1538: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1539: $target eq 'tex') {
1540: if ($env{'form.markaccess'}) {
1541: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1.512.2.16 raeburn 1542: my $is_set = &Apache::lonnet::set_first_access($interval[1],$interval[0]);
1543: unless (($is_set eq 'ok') || ($is_set eq 'already_set')) {
1544: $firstaccres = $is_set;
1545: }
1.506 raeburn 1546: }
1547:
1548: ($status,$accessmsg,$slot_name,$slot) =
1549: &Apache::lonhomework::check_slot_access('0','problem');
1550: push (@Apache::inputtags::status,$status);
1551: }
1552:
1.354 albertel 1553: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1554: || $target eq 'edit') {
1.512.2.9 raeburn 1555: ($result,$form_tag_start,$probpartlist) =
1.350 albertel 1556: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1557: $name);
1.512.2.9 raeburn 1558: } elsif (($target eq 'grade') && ($Apache::lonhomework::type eq 'randomizetry')) {
1559: my ($symb)= &Apache::lonnet::whichuser();
1560: my $navmap = Apache::lonnavmaps::navmap->new();
1561: if (ref($navmap)) {
1562: my $res = $navmap->getBySymb($symb);
1563: if (ref($res)) {
1564: $probpartlist = $res->parts();
1565: }
1566: }
1.350 albertel 1567: }
1568:
1.284 albertel 1569: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1570:
1.479 raeburn 1571: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1572: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1573: $target eq 'tex') {
1.479 raeburn 1574:
1.159 albertel 1575: #handle rand seed in construction space
1.512.2.9 raeburn 1576: my $rndseed=&setup_rndseed($safeeval,$target,$probpartlist);
1577: if (($target eq 'grade') && &Apache::response::submitted()) {
1578: if ($Apache::lonhomework::type eq 'randomizetry') {
1579: $Apache::lonhomework::results{'resource.0.rndseed'}=$rndseed;
1580: } else {
1581: my @parts;
1582: if (ref($probpartlist) eq 'ARRAY') {
1583: @parts = @{$probpartlist};
1584: }
1585: unless (@parts) {
1586: $Apache::lonhomework::results{'resource.0.rndseed'}=$Apache::lonhomework::rawrndseed;
1587: }
1588: }
1589: }
1.367 albertel 1590: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 1591:
1.333 albertel 1592: if ($env{'request.state'} ne "construct" &&
1593: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1594: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1595: $rndseed.'" />'.
1596: '<input type="submit" name="resetdata"
1597: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1598: if (exists($env{'form.username'})) {
1599: $form_tag_start.=
1.164 albertel 1600: '<input type="hidden" name="username"
1.284 albertel 1601: value="'.$env{'form.username'}.'" />';
1.334 albertel 1602: }
1.462 raeburn 1603: if ($env{'request.role.adv'}) {
1604: $form_tag_start.= ' <label class="LC_nobreak">'
1605: .'<input type="checkbox" name="showallfoils"';
1606: if (defined($env{'form.showallfoils'})) {
1607: $form_tag_start.=' checked="checked"';
1608: }
1609: $form_tag_start.= ' /> '
1610: .&mt('Show All Foils')
1611: .'</label>';
1612: }
1.417 www 1613: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1614: $form_tag_start.=&practice_problem_header();
1.417 www 1615: }
1.462 raeburn 1616: $form_tag_start.='<hr />';
1.479 raeburn 1617: } elsif (($env{'request.state'} ne "construct") &&
1618: ($Apache::lonhomework::type eq 'randomizetry') &&
1619: ($status eq 'CAN_ANSWER')) {
1620: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1621: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1622: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1623: }
1.324 albertel 1624:
1.159 albertel 1625: my $expression='$external::datestatus="'.$status.'";';
1626: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1627: &Apache::run::run($expression,$safeeval);
1628: &Apache::lonxml::debug("Got $status");
1.324 albertel 1629:
1.159 albertel 1630: if (( $status eq 'CLOSED' ) ||
1631: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1632: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1633: ( $status eq 'BANNED') ||
1.216 albertel 1634: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1635: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1636: ( $status eq 'NOTRESERVABLE') ||
1637: ( $status eq 'RESERVABLE') ||
1638: ( $status eq 'RESERVABLE_LATER') ||
1.216 albertel 1639: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1640: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1641: $style);
1.159 albertel 1642: if ( $target eq "web" ) {
1.343 albertel 1643: my $msg;
1.159 albertel 1644: if ($status eq 'UNAVAILABLE') {
1.504 golterma 1645: $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1.441 raeburn 1646: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.504 golterma 1647: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1.499 raeburn 1648: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1649: ($status eq 'NOTRESERVABLE')) {
1.504 golterma 1650: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1.253 albertel 1651: } elsif ($status ne 'NOT_YET_VIEWED') {
1.504 golterma 1652: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1.499 raeburn 1653: }
1.216 albertel 1654: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1655: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1656: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1657: $msg.=&checkout_msg();
1.252 albertel 1658: } elsif ($status eq 'NOT_YET_VIEWED') {
1.512.2.16 raeburn 1659: if ($firstaccres) {
1660: $msg .= '<p class="LC_error">'.
1661: &mt('A problem occurred when trying to start the timer.').'</p>';
1662: }
1.253 albertel 1663: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1664: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1665: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.499 raeburn 1666: } elsif ($status eq 'RESERVABLE') {
1667: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1668: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1669: '<br />'.
1670: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1671: } elsif ($status eq 'RESERVABLE_LATER') {
1672: $msg.=&mt('Window to make a reservation will open [_1].',
1673: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1674: } elsif ($status eq 'NOTRESERVABLE') {
1675: $msg.=&mt('Not available to make a reservation.');
1.159 albertel 1676: }
1677: $result.=$msg.'<br />';
1678: } elsif ($target eq 'tex') {
1.332 albertel 1679: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1680: : '\begin{minipage}{\textwidth}';
1.443 foxr 1681: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1682: $startminipage.'\vskip 0 mm';
1.159 albertel 1683: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1684: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1685: } else {
1.211 albertel 1686: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1687: }
1688: }
1.324 albertel 1689: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1690: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1691: $style);
1.324 albertel 1692: if ($target eq 'web') {
1.375 albertel 1693: $result .=
1694: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1695: } elsif ($target eq 'grade') {
1696: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1697: 'problem');
1698: }
1.159 albertel 1699: } elsif ($target eq 'web') {
1.508 raeburn 1700: if ($status eq 'CAN_ANSWER') {
1701: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1702: if ($slot_name ne '') {
1703: my $checked_in =
1704: $Apache::lonhomework::history{'resource.0.checkedin'};
1705: if ($checked_in eq '') {
1706: # unproctored slot access, self checkin
1707: &Apache::bridgetask::check_in('problem',undef,undef,
1708: $slot_name);
1709: $checked_in =
1710: $Apache::lonhomework::results{"resource.0.checkedin"};
1711: }
1712: if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1713: if ($slot->{'starttime'} < time()) {
1714: if (!$resource_due) {
1715: $resource_due = $slot->{'endtime'};
1716: } elsif ($slot->{'endtime'} < $resource_due) {
1717: $resource_due = $slot->{'endtime'};
1718: }
1719: }
1720: }
1721: }
1722: if ($resource_due) {
1723: my $time_left = $resource_due - time();
1724: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1725: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1726: }
1727: }
1728: }
1.368 albertel 1729: $result.="\n $form_tag_start \t".
1.227 albertel 1730: '<input type="hidden" name="submitted" value="yes" />';
1731: # create a page header and exit
1.284 albertel 1732: if ($env{'request.state'} eq "construct") {
1733: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1734: if ($Apache::lonhomework::type eq 'practice') {
1735: $result.= '<input type="submit" name="resetdata" '.
1736: 'value="'.&mt('New Problem Variation').'" />'.
1737: &practice_problem_header().'<hr />';
1.512.2.19! raeburn 1738: } elsif ($Apache::lonhomework::type eq 'randomizetry') {
! 1739: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
! 1740: my $problemstatus = &get_problem_status($Apache::inputtags::part);
! 1741: $result.=&randomizetry_problem_header($problemstatus,$reqtries);
1.428 raeburn 1742: }
1.227 albertel 1743: }
1744: # if we are viewing someone else preserve that info
1.284 albertel 1745: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1746: foreach my $field ('symb','courseid','domain','username') {
1747: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1748: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1749: }
1.479 raeburn 1750: foreach my $field ('trial','questiontype') {
1751: if ($env{"form.grade_$field"} ne '') {
1752: $result .= '<input type="hidden" name="grade_'.$field.
1753: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1754: }
1755: }
1.159 albertel 1756: }
1.490 raeburn 1757: if ($env{'form.grade_imsexport'}) {
1758: $result = '';
1759: }
1.159 albertel 1760: } elsif ($target eq 'tex') {
1.319 foxr 1761: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 1762: $result .= &select_metadata_hyphenation();
1763:
1.319 foxr 1764:
1.99 sakharuk 1765: }
1.159 albertel 1766: } elsif ($target eq 'edit') {
1.343 albertel 1767: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1768: $Apache::lonxml::warnings_error_header=
1769: &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 1770: my $temp=&Apache::edit::insertlist($target,$token);
1771: $result.=$temp;
1772: } elsif ($target eq 'modified') {
1773: $result=$token->[4];
1774: } else {
1775: # page_start returned a starting result, delete it if we don't need it
1776: $result = '';
1.99 sakharuk 1777: }
1.159 albertel 1778: return $result;
1.9 albertel 1779: }
1780:
1781: sub end_problem {
1.159 albertel 1782: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1783: my $result;
1.310 foxr 1784:
1.321 albertel 1785: if (!$Apache::lonxml::metamode) {
1786: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1787: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1788: }
1.319 foxr 1789:
1790: if ($target eq 'tex') {
1.321 albertel 1791: # Figure out the front matter and replace the
1792: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1793: # this in end_problem because whether or not we display due
1794: # dates depends on whether due dates have already been
1795: # displayed in the problem parts.
1796:
1.319 foxr 1797: my $frontmatter = '';
1798: my $startminipage = '';
1799: if (not $env{'form.problem_split'}=~/yes/) {
1800: $startminipage = '\begin{minipage}{\textwidth}';
1801: }
1802: my $id = $Apache::inputtags::part;
1803: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1804: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.512.2.9 raeburn 1805: my @packages = split(/,/,$packages);
1.319 foxr 1806: my $allow_print_points = 0;
1807: foreach my $partial_key (@packages) {
1808: if ($partial_key=~m/^part_0$/) {
1809: $allow_print_points=1;
1810: }
1811: }
1812: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1813: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1814: if (lc($env{'course.'.$env{'request.course.id'}.
1815: '.disableexampointprint'}) eq 'yes') {
1816: $allow_print_points=0;
1817: }
1818: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1819: 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 1820: &clear_required_languages();
1.319 foxr 1821: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1822: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1823:
1824: # Figure out what the due date is and if we need to print
1825: # it in the problem header. We have been logging the
1826: # last due date written to file.
1827:
1828: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1829: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1830: my $duedate_text = &mt('Due date: [_1]'
1831: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1832: my $temp_file;
1833: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1834:
1835: # Figure out what the last printed due date is or set it
1836: # to the epoch if no duedates have been printed.
1837:
1838: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1839: if (-e $filename) {
1840: $temp_file = Apache::File->new($filename);
1841: my @due_file = <$temp_file>;
1842: $due_file_content = $due_file[$#due_file];
1843: chomp $due_file_content;
1844: }
1845:
1846: # We display the due date iff it is not the same as the last
1847: # duedate in problem header ($due_file_content), and
1848: # none of our parts displayed a duedate.
1849: #
1850: my $parts_with_displayduedate;
1851: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1852: $parts_with_displayduedate =
1853: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1854: } else {
1855: $parts_with_displayduedate = 0;
1856: }
1857: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1858: $temp_file = Apache::File->new('>'.$filename);
1859: print $temp_file "$duetime\n";
1860: if (not $env{'request.symb'} =~ m/\.page_/) {
1861: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1862: $frontmatter .= $begin_doc.
1.448 bisitz 1863: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1864: } else {
1865: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1866: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1867: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1868: }
1.319 foxr 1869: }
1870: } else {
1.448 bisitz 1871: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1872: }
1873: } else {
1874: if (not $env{'request.symb'} =~ m/\.page_/) {
1875: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1876: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1877: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1878: }
1.319 foxr 1879: } else {
1.381 albertel 1880: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1881: }
1882: }
1883: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1884: }
1885:
1.159 albertel 1886: my $status=$Apache::inputtags::status['-1'];
1887: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1888: $target eq 'tex') {
1.249 albertel 1889: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1890: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1891: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1892: &Apache::inputtags::grade;
1.324 albertel 1893: } elsif ($status eq 'NEEDS_CHECKIN') {
1894: # no need to grade, and don't want to hide data
1.249 albertel 1895: } else {
1896: # move any submission data to .hidden
1897: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1898: }
1.159 albertel 1899: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1900: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1901: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1902: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1903: # if part is zero, no <part>s existed, so we need show the current
1904: # grading status
1905: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1906: $result.= $gradestatus;
1907: }
1908: if (
1.284 albertel 1909: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1910: ($target eq 'answer') || ($target eq 'tex')
1911: ) {
1.490 raeburn 1912: if (($target ne 'tex') &&
1913: ($env{'form.answer_output_mode'} ne 'tex') &&
1914: (!$env{'form.grade_imsexport'})) {
1.254 www 1915: $result.="</form>";
1.159 albertel 1916: }
1917: if ($target eq 'web') {
1.507 raeburn 1918: #
1919: # Closing </body></html> not added by end_page().
1920: # Added separately at end of this routine, after added
1921: # <script></script> so document will be valid xhtml.
1922: #
1923: $result.= &Apache::loncommon::end_page({'discussion' => 1,
1924: 'notbody' => 1});
1.159 albertel 1925: } elsif ($target eq 'tex') {
1.178 sakharuk 1926: my $endminipage = '';
1.284 albertel 1927: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1928: $endminipage = '\end{minipage}';
1929: }
1.284 albertel 1930: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1931: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1932: } else {
1.262 sakharuk 1933: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1934: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1935: $result .= $endminipage.'\end{document} ';
1936: } else {
1.382 albertel 1937: $result .= $endminipage;
1.262 sakharuk 1938: }
1.159 albertel 1939: }
1940: }
1941: }
1.476 www 1942: if ($target eq 'web') {
1943: $result.=&Apache::functionplotresponse::init_script();
1944: }
1.159 albertel 1945: if ($target eq 'grade') {
1946: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1947: &finalize_storage();
1948: }
1.284 albertel 1949: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1950: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1951: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1952: # normally we get it from above, but in CSTR
1.172 albertel 1953: # we always show answer mode too.
1.159 albertel 1954: }
1955: } elsif ($target eq 'meta') {
1956: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1957: @Apache::inputtags::response=();
1.159 albertel 1958: $result=&Apache::response::mandatory_part_meta;
1959: }
1.215 albertel 1960: $result.=&Apache::response::meta_part_order();
1.258 albertel 1961: $result.=&Apache::response::meta_response_order();
1.159 albertel 1962: } elsif ($target eq 'edit') {
1963: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1964: $result .= &problem_edit_footer();
1.320 albertel 1965: } elsif ($target eq 'modified') {
1966: $result .= $token->[2];
1.159 albertel 1967: }
1.155 albertel 1968:
1.284 albertel 1969: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1970: &Apache::inputtags::check_for_duplicate_ids();
1971: }
1.204 albertel 1972:
1973: &reset_problem_globals('problem');
1.159 albertel 1974:
1.502 foxr 1975: #
1976: # This shouild be just above the return so that the
1977: # time put in the javascript is as late as possible in the
1978: # computation:
1979: #
1980: if ($target eq 'web') {
1981: $result .= &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 1982: #
1983: # Closing tags delayed so any <script></script> tags
1984: # not in head can appear inside body, for valid xhtml.
1985: #
1986: $result .= "</body>\n</html>";
1.502 foxr 1987: }
1.159 albertel 1988: return $result;
1.48 albertel 1989: }
1990:
1.108 albertel 1991:
1.48 albertel 1992: sub start_library {
1.159 albertel 1993: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1994: my ($result,$form_tag_start);
1.371 albertel 1995: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1996: &init_problem_globals('library');
1997: $Apache::lonhomework::type='problem';
1998: }
1.159 albertel 1999: if ($target eq 'edit') {
1.343 albertel 2000: ($result,$form_tag_start)=
2001: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2002: 'Edit');
2003: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 2004: my $temp=&Apache::edit::insertlist($target,$token);
2005: $result.=$temp;
2006: } elsif ($target eq 'modified') {
2007: $result=$token->[4];
1.340 albertel 2008: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 2009: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 2010: && $env{'request.state'} eq "construct" ) {
1.159 albertel 2011: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 2012: ($result,$form_tag_start)=
2013: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2014: $name);
1.479 raeburn 2015: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 2016: $result.=" \n $form_tag_start".
1.159 albertel 2017: '<input type="hidden" name="submitted" value="yes" />';
2018: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 2019: if ($Apache::lonhomework::type eq 'practice') {
2020: $result.= '<input type="submit" name="resetdata" '.
2021: 'value="'.&mt('New Problem Variation').'" />'.
2022: &practice_problem_header().'<hr />';
2023: }
1.159 albertel 2024: }
2025: return $result;
1.48 albertel 2026: }
2027:
2028: sub end_library {
1.159 albertel 2029: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2030: my $result='';
2031: if ($target eq 'edit') {
2032: $result=&problem_edit_footer();
1.371 albertel 2033: } elsif ($target eq 'web'
2034: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
2035: && $env{'request.state'} eq "construct") {
1.349 albertel 2036: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.512.2.15 raeburn 2037: } elsif ($target eq 'meta') {
2038: $result.=&Apache::response::meta_response_order();
1.159 albertel 2039: }
1.371 albertel 2040: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
2041: &reset_problem_globals('library');
2042: }
1.159 albertel 2043: return $result;
1.197 www 2044: }
2045:
2046: sub start_definetag {
1.326 albertel 2047: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 2048:
2049: my $result;
2050:
2051: my $name = $token->[2]->{'name'};
1.326 albertel 2052: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 2053: if ($target eq 'web') {
2054: if ($name=~/^\//) {
2055: $result=
2056: '<br /><table class="LC_sty_end"><tr><th>'.
2057: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2058: } else {
2059: $result=
2060: '<br /><table class="LC_sty_begin"><tr><th>'.
2061: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2062: }
2063: $skip = &HTML::Entities::encode($skip, '<>&"');
2064: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 2065: }
2066: return $result;
2067: }
2068:
2069: sub end_definetag {
2070: return '';
1.1 albertel 2071: }
2072:
2073: sub start_block {
1.201 albertel 2074: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 2075:
2076: my $result;
1.1 albertel 2077:
1.339 albertel 2078: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2079: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 2080: my $code = $token->[2]->{'condition'};
1.385 albertel 2081: if (defined($code) && $code ne '') {
1.137 albertel 2082: if (!$Apache::lonxml::default_homework_loaded) {
2083: &Apache::lonxml::default_homework_load($safeeval);
2084: }
1.131 albertel 2085: $result = &Apache::run::run($code,$safeeval);
2086: &Apache::lonxml::debug("block :$code: returned :$result:");
2087: } else {
2088: $result='1';
2089: }
2090: if ( ! $result ) {
1.201 albertel 2091: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 2092: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2093: }
2094: $result='';
2095: } elsif ($target eq 'edit') {
2096: $result .=&Apache::edit::tag_start($target,$token);
2097: $result .=&Apache::edit::text_arg('Test Condition:','condition',
2098: $token,40);
2099: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2100: } elsif ($target eq 'modified') {
2101: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2102: $safeeval,'condition');
2103: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 2104: }
1.131 albertel 2105: return $result;
1.1 albertel 2106: }
2107:
2108: sub end_block {
1.167 www 2109: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2110: my $result;
2111: if ($target eq "edit") {
2112: $result.= &Apache::edit::tag_end($target,$token,'');
2113: }
2114: return $result;
2115: }
1.500 foxr 2116: #
2117: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
2118: # ...
2119: # </languageblock>
2120: #
2121: # This declares the intent to provide content that can be rendered in the
2122: # set of languages in the include specificatino but not in the exclude
2123: # specification. If a currently preferred language is in the include list
2124: # the content in the <languageblock>...</languageblock> is rendered
2125: # If the currently preferred language is in the exclude list,
2126: # the content in the <languageblock>..></languageblock is not rendered.
2127: #
2128: # Pathalogical case handling:
2129: # - Include specified, without the preferred language but exclude specified
2130: # also without the preferred langauge results in rendering the block.
2131: # - Exclude specified without include and excluden not containing a
2132: # preferred language renders the block.
2133: # - Include and exclude both specifying the preferred language does not
2134: # render the block.
2135: # - If neither include/exclude is specified, the block gets rendered.
2136: #
2137: # This tag has no effect when target is in {edit, modified}
2138: #
1.167 www 2139: sub start_languageblock {
1.201 albertel 2140: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 2141:
1.500 foxr 2142: my $result = '';
1.167 www 2143:
1.339 albertel 2144: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2145: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 2146: my $include = $token->[2]->{'include'};
2147: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 2148: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 2149:
2150: # This should not even happen, since we should at least have the server language
2151:
2152: if (!$preferred_languages[0]) {
2153: $preferred_languages[0]='en';
2154: }
2155:
2156: # Now loop over all languages in order of preference
2157:
2158: my $render;
1.398 www 2159: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 2160:
2161: # If neither include/nor exlude is present the block is going
2162: # to get rendered.
2163:
1.399 www 2164: my $found=0;
1.500 foxr 2165: $render=1;
2166:
2167: # If include is specified, don't render the block
2168: # unless the preferred language is included in the set.
2169:
1.398 www 2170: if ($include) {
1.500 foxr 2171: $render=0;
1.398 www 2172: foreach my $included_language (split(/\,/,$include)) {
2173: if ($included_language eq $preferred_language) {
1.500 foxr 2174: $render=1;
1.399 www 2175: $found=1;
1.500 foxr 2176: last; # Only need to find the first.
1.398 www 2177: }
2178: }
2179: }
1.500 foxr 2180: # Do we have an exclude argument?
2181: # If so, and one of the languages matches a preferred language
2182: # inhibit rendering the block. Note that in the pathalogical case the
2183: # author has specified a preferred language in both the include and exclude
2184: # attribte exclude is preferred.
2185:
1.398 www 2186: if ($exclude) {
1.500 foxr 2187: $render=1;
1.398 www 2188: foreach my $excluded_language (split(/\,/,$exclude)) {
2189: if ($excluded_language eq $preferred_language) {
1.500 foxr 2190: $render=0;
1.399 www 2191: $found=1;
1.500 foxr 2192: last; # Only need to find the first.
1.398 www 2193: }
2194: }
2195: }
1.500 foxr 2196: if ($found) {
2197: last; # Done on any match of include or exclude.
2198: }
1.398 www 2199: }
1.500 foxr 2200: # If $render not true skip the entire block until </languageblock>
2201: #
2202:
2203: if ( ! $render ) {
1.201 albertel 2204: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
2205: $style);
2206: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2207: }
1.500 foxr 2208: # If $render is true, we've not skipped the contents of the <languageglock>
2209: # and the normal loncapa processing flow will render it as a matter of course.
2210:
1.167 www 2211: } elsif ($target eq 'edit') {
2212: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2213: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 2214: $token,40);
1.211 albertel 2215: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 2216: $token,40);
2217: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2218: } elsif ($target eq 'modified') {
2219: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 2220: $safeeval,'include',
2221: 'exclude');
1.167 www 2222: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2223: }
2224: return $result;
2225: }
2226:
2227: sub end_languageblock {
1.170 www 2228: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2229: my $result;
1.201 albertel 2230: if ($target eq "edit") {
1.170 www 2231: $result.= &Apache::edit::tag_end($target,$token,'');
2232: }
2233: return $result;
2234: }
1.500 foxr 2235: # languagblock specific tags:
2236: {
2237: # For chunks of a resource that has translations, this hash contains
2238: # the translations available indexed by language name.
2239: #
2240:
2241: my %available_texts;
1.170 www 2242:
1.500 foxr 2243: # <translated> starts a block of a resource that has multiple translations.
2244: # See the <lang> tag as well.
2245: # When </translated> is encountered if there is a translation for the
2246: # currently preferred language, that is rendered inthe web/tex/webgrade
2247: # targets. Otherwise, the default text is rendered.
2248: #
2249: # Note that <lang> is only registered for the duration of the
2250: # <translated>...</translated> block
2251: #
2252: # Pathalogical case handling:
2253: # - If there is no <lang> that specifies a 'default' and there is no
2254: # translation that matches a preferred language, nothing is rendered.
2255: # - Nested <translated>...</translated> might be linguistically supported by
2256: # XML due to the stack nature of tag registration(?) however the rendered
2257: # output will be incorrect because there is only one %available_texts
2258: # has and end_translated clears it.
2259: # - Material outside of a <lang>...</lang> block within the
2260: # <translated>...<translated> block won't render either e.g.:
2261: # <translated>
2262: # The following will be in your preferred langauge:
2263: # <lang which='en'>
2264: # This section in english
2265: # </lang>
2266: # <lang which='sgeiso'>
2267: # Hier es ist auf Deutsch.
2268: # </lang>
2269: # <lang which='sfriso'>
2270: # En Francais
2271: # </lang>
2272: # </translated>
2273: #
2274: # The introductory text prior to the first <lang> tag is not rendered.
2275: #
1.397 albertel 2276: sub start_translated {
2277: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2278: &Apache::lonxml::register('Apache::structuretags',('lang'));
2279: undef(%available_texts);
2280: }
2281:
2282: sub end_translated {
2283: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2284: my $result;
2285: #show the translation on viewable targets
2286: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
2287: # or non-viewable targets, if it's embedded in something that
2288: # wants the output
2289: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
2290: && &Apache::lonxml::in_redirection() ) ) {
2291: my @possibilities = keys(%available_texts);
2292: my $which =
2293: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 2294: if ($target eq 'tex') {
2295: $result = &select_hyphenation($which);
2296: }
2297: $result .= $available_texts{$which};
2298: if ($target eq 'tex') {
2299: $result .= &select_metadata_hyphenation(); # Restore original language.
2300: }
1.397 albertel 2301: }
2302: undef(%available_texts);
2303: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
2304: return $result;
2305: }
2306:
1.500 foxr 2307: # <lang [which='language-name'] [other='lang1,lang2...']>
2308: # Specifies that the block contained within it is a translation
2309: # for a specific language specified by the 'which' attribute. The
2310: # 'other' attribute can be used by itself or in conjunction with
2311: # which to specify this tag _may_ be used as a translation for some
2312: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
2313: # specifying that the block provides a translation for US (primary)
2314: # Canadian, Australian and UK Englush.
2315: #
2316: # Comment: this seems a bit silly why not just support a list of languages
2317: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
2318: #
2319: # Effect:
2320: # The material within the <lang>..</lang> block is stored in the
2321: # specified set of $available_texts hash entries, the appropriate one
2322: # is selected at </translated> time.
2323: #
2324: # Pathalogical case handling:
2325: # If a language occurs multiple times within a <translated> block,
2326: # only the last one is rendered e.g.:
2327: #
2328: # <translated>
2329: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
2330: # Red green color blindness is quite common affecting about 7.8% of
2331: # the male population, but onloy about .65% of the female population.
2332: # </lang>
2333: # Red green colour blindness is quite common affecting about 7.8% of
2334: # the male population, but onloy about .65% of the female population.
2335: # <lang which='seniso', other='senisoCA,senisoAU'>
2336: # </translated>
2337: #
2338: # renders the correct spelling of color (colour) for people who have specified
2339: # a preferred language that is one of the British Commonwealth languages
2340: # even though those are also listed as valid selections for the US english
2341: # <lang> block.
2342: #
1.397 albertel 2343: sub start_lang {
2344: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2345: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2346: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2347: &Apache::lonxml::startredirection();
2348: }
2349: return '';
2350: }
2351:
2352: sub end_lang {
2353: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2354: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2355: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2356: my $result = &Apache::lonxml::endredirection();
2357: my $which = &Apache::lonxml::get_param('which',$parstack,
2358: $safeeval);
1.431 raeburn 2359: if ($which=~/\w/) {
2360: $available_texts{$which} = $result;
2361: }
2362: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
2363: $safeeval);
2364: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
2365: if ($language=~/\w/) {
2366: $available_texts{$language} = $result;
2367: }
1.427 bisitz 2368: }
2369:
1.397 albertel 2370: }
2371: return '';
2372: }
1.500 foxr 2373: } # end langauge block specific tags.
2374:
1.397 albertel 2375:
1.170 www 2376: sub start_instructorcomment {
1.201 albertel 2377: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 2378:
2379: my $result;
2380:
1.339 albertel 2381: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2382: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 2383: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 2384: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 2385: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
2386: $parser,$style);
1.170 www 2387: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2388: }
2389: $result='';
2390: } elsif ($target eq 'edit') {
2391: $result .=&Apache::edit::tag_start($target,$token);
2392: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2393: }
2394: return $result;
2395: }
2396:
2397: sub end_instructorcomment {
1.159 albertel 2398: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2399: my $result;
2400: if ($target eq "edit") {
2401: $result.= &Apache::edit::tag_end($target,$token,'');
2402: }
2403: return $result;
1.4 tsai 2404: }
2405:
2406: sub start_while {
1.326 albertel 2407: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2408:
1.160 albertel 2409: my $result;
1.339 albertel 2410: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2411: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2412: my $code = $token->[2]->{'condition'};
1.4 tsai 2413:
1.160 albertel 2414: push( @Apache::structuretags::whileconds, $code);
2415: if (!$Apache::lonxml::default_homework_loaded) {
2416: &Apache::lonxml::default_homework_load($safeeval);
2417: }
2418: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2419: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2420: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2421: push( @Apache::structuretags::whileline, $token->[5]);
2422: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2423: if ( $result ) {
2424: &Apache::lonxml::newparser($parser,\$bodytext);
2425: }
2426: } elsif ($target eq 'edit') {
2427: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2428: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2429: $token,40);
2430: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2431: } elsif ($target eq 'modified') {
2432: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2433: $safeeval,'condition');
2434: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2435: }
1.160 albertel 2436: return $result;
1.4 tsai 2437: }
2438:
2439: sub end_while {
1.159 albertel 2440: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2441: my $result;
2442:
1.339 albertel 2443: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2444: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2445: my $code = pop(@Apache::structuretags::whileconds);
2446: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2447: my $line = pop(@Apache::structuretags::whileline);
2448: my $return = &Apache::run::run($code,$safeeval);
2449: my $starttime=time;
2450: my $error=0;
2451: while ($return) {
2452: if (time-$starttime >
2453: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2454: $return = 0; $error=1; next;
1.161 albertel 2455: }
2456: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2457: if ($target eq 'grade' || $target eq 'answer' ||
2458: $target eq 'analyze') {
2459: # grade/answer/analyze should produce no output but if we
2460: # are redirecting, the redirecter should know what to do
2461: # with the output
2462: if (!$Apache::lonxml::redirection) { undef($result); }
2463: }
1.161 albertel 2464: $return = &Apache::run::run($code,$safeeval);
2465: }
1.512.2.5 raeburn 2466: if ($error) {
2467: &Apache::lonxml::error(
2468: '<pre>'
2469: .&mt('Code ran too long. It ran for more than [_1] seconds.',
2470: $Apache::lonnet::perlvar{'lonScriptTimeout'})
2471: .&mt('This occurred while running <while> on line [_1].',
2472: $line)
2473: .'</pre>');
2474: }
1.160 albertel 2475: } elsif ($target eq "edit") {
2476: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2477: }
1.160 albertel 2478: return $result;
1.1 albertel 2479: }
1.6 tsai 2480:
1.160 albertel 2481: # <randomlist show="1">
1.6 tsai 2482: # <tag1>..</tag1>
2483: # <tag2>..</tag2>
2484: # <tag3>..</tag3>
1.160 albertel 2485: # ...
1.6 tsai 2486: # </randomlist>
2487: sub start_randomlist {
1.326 albertel 2488: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2489: my $result;
1.339 albertel 2490: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2491: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2492: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2493: my $b_parser= HTML::LCParser->new(\$body);
2494: $b_parser->xml_mode(1);
2495: $b_parser->marked_sections(1);
1.159 albertel 2496: my $b_tok;
2497: my @randomlist;
2498: my $list_item;
2499: while($b_tok = $b_parser->get_token() ) {
2500: if($b_tok->[0] eq 'S') { # start tag
2501: # get content of the tag until matching end tag
2502: # get all text upto the matching tag
2503: # and push the content into @randomlist
2504: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2505: $b_parser);
2506: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2507: push(@randomlist,$list_item);
2508: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2509: # $list_item</b>";
2510: }
2511: if($b_tok->[0] eq 'T') { # text
2512: # what to do with text in between tags?
2513: # print "<b>TEXT $b_tok->[1]</b><br />";
2514: }
2515: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2516: # print "<b>END-TAG $b_tok->[1]</b><br />";
2517: # }
2518: }
1.303 albertel 2519: if (@randomlist) {
2520: my @idx_arr = (0 .. $#randomlist);
1.512.2.14 raeburn 2521: if ($env{'form.code_for_randomlist'}) {
2522: &Apache::structuretags::shuffle(\@idx_arr,$target);
2523: undef($env{'form.code_for_randomlist'});
2524: } else {
2525: &Apache::structuretags::shuffle(\@idx_arr);
2526: }
1.303 albertel 2527: my $bodytext = '';
2528: my $show=$#randomlist;
2529: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2530: $showarg--;
2531: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2532: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2533: my @currlist;
2534: my $part = $Apache::inputtags::part;
2535: if ($part ne '') {
2536: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2537: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2538: if (!(grep(/^\Q$part\E$/,@currlist))) {
2539: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2540: }
2541: } else {
2542: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2543: }
2544: }
2545: }
1.512.2.9 raeburn 2546: for my $i (0 .. $show) {
2547: $bodytext .= "$randomlist[ $idx_arr[$i] ]";
1.303 albertel 2548: }
2549: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2550: }
2551: } elsif ($target eq 'edit' ) {
2552: $result .=&Apache::edit::tag_start($target,$token);
2553: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2554: $token,5);
2555: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2556: } elsif ($target eq 'modified' ) {
2557: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2558: $safeeval,'show');
2559: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2560: }
2561: return $result;
1.7 tsai 2562: }
2563:
2564: sub shuffle {
1.512.2.14 raeburn 2565: my ($a,$target) = @_;
1.7 tsai 2566: my $i;
1.303 albertel 2567: if (ref($a) eq 'ARRAY' && @$a) {
1.512.2.14 raeburn 2568: &Apache::response::pushrandomnumber(undef,$target);
1.159 albertel 2569: for($i=@$a;--$i;) {
2570: my $j=int(&Math::Random::random_uniform() * ($i+1));
2571: next if $i == $j;
2572: @$a[$i,$j] = @$a[$j,$i];
2573: }
1.251 albertel 2574: &Apache::response::poprandomnumber();
1.7 tsai 2575: }
1.6 tsai 2576: }
2577:
2578: sub end_randomlist {
1.159 albertel 2579: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2580: my $result;
2581: if ($target eq 'edit' ) {
2582: $result=&Apache::edit::tag_end($target,$token,
2583: 'End Randomly Parsed Block');
2584: }
2585: return $result;
1.6 tsai 2586: }
2587:
1.283 albertel 2588: sub ordered_show_check {
2589: my $last_part=$Apache::inputtags::partlist[-2];
2590: my $in_order=
2591: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2592: my $in_order_show=1;
2593: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2594: $in_order_show=&Apache::response::check_status($last_part);
2595: }
2596: return $in_order_show;
2597: }
2598:
1.469 www 2599:
2600: sub start_startpartmarker {
2601: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2602: my $result='';
2603: if ($target eq 'edit') {
2604: $result=&Apache::edit::tag_start($target,$token);
2605: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2606: $result.=&Apache::edit::end_table();
2607:
2608: }
2609: return $result;
2610: }
2611:
2612: sub end_startpartmarker {
2613: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2614: my @result;
2615: if ($target eq 'edit') { $result[1]='no'; }
2616: return @result;
2617: }
2618:
2619: sub start_endpartmarker {
2620: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2621: my $result='';
2622: if ($target eq 'edit') {
2623: $result=&Apache::edit::tag_start($target,$token);
2624: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2625: $result.=&Apache::edit::end_table();
2626:
2627: }
2628: return $result;
2629: }
2630:
2631: sub end_endpartmarker {
2632: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2633: my @result;
2634: if ($target eq 'edit') { $result[1]='no'; }
2635: return @result;
2636: }
2637:
2638:
2639:
2640:
2641:
1.11 albertel 2642: sub start_part {
1.326 albertel 2643: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2644: if (!$Apache::lonxml::metamode) {
2645: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2646: # duedates.
2647: }
1.159 albertel 2648: my $result='';
1.386 albertel 2649: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2650: $Apache::inputtags::part=$id;
1.177 albertel 2651: push(@Apache::inputtags::partlist,$id);
1.512.2.10 raeburn 2652: $Apache::inputtags::leniency='';
1.177 albertel 2653: @Apache::inputtags::response=();
1.159 albertel 2654: @Apache::inputtags::previous=();
2655: @Apache::inputtags::previous_version=();
1.405 albertel 2656: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2657: &Apache::response::reset_params();
2658:
1.159 albertel 2659: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2660: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2661: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.512.2.9 raeburn 2662: if ($Apache::lonhomework::type eq 'randomizetry') {
2663: my $rndseed=&setup_rndseed($safeeval,$target);
2664: if (($target eq 'grade') && &Apache::response::submitted()) {
2665: $Apache::lonhomework::results{"resource.$id.rndseed"}=$rndseed;
2666: }
2667: } elsif (($target eq 'grade') && &Apache::response::submitted()) {
2668: $Apache::lonhomework::results{"resource.$id.rndseed"}=$Apache::lonhomework::rawrndseed;
2669: }
1.283 albertel 2670: my $in_order_show=&ordered_show_check();
1.214 albertel 2671: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2672: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2673: &Apache::run::run($expression,$safeeval);
1.159 albertel 2674:
2675: if ($target eq 'meta') {
1.224 www 2676: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2677: return &Apache::response::mandatory_part_meta.
2678: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2679: } elsif ($target eq 'web' || $target eq 'grade' ||
2680: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2681: if ($hidden || !$in_order_show) {
1.326 albertel 2682: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2683: } else {
2684: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2685: push (@Apache::inputtags::status,$status);
2686: my $expression='$external::datestatus="'.$status.'";';
2687: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2688: &Apache::run::run($expression,$safeeval);
1.284 albertel 2689: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2690: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2691: }
1.216 albertel 2692: if (( $status eq 'CLOSED' ) ||
2693: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2694: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2695: ( $status eq 'BANNED') ||
2696: ( $status eq 'UNAVAILABLE') ||
2697: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2698: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2699: $style);
1.159 albertel 2700: if ( $target eq "web" ) {
1.211 albertel 2701: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2702: } elsif ( $target eq 'tex' ) {
1.284 albertel 2703: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2704: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2705: } else {
1.211 albertel 2706: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2707: }
1.159 albertel 2708: }
2709: } else {
2710: if ($target eq 'tex') {
1.284 albertel 2711: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2712: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2713: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2714: } else {
2715: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2716: }
1.195 sakharuk 2717: }
1.159 albertel 2718: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2719: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.512.2.9 raeburn 2720: my @allkeys = split(/,/,$allkeys);
1.222 sakharuk 2721: my $allow_print_points = 0;
2722: foreach my $partial_key (@allkeys) {
1.230 albertel 2723: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2724: if ($1 ne '0') {$allow_print_points=1;}
2725: }
2726: }
1.275 albertel 2727: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2728: if (defined($maxtries) && $maxtries < 0) {
2729: $allow_print_points=0;
2730: }
1.302 albertel 2731: if (lc($env{'course.'.$env{'request.course.id'}.
2732: '.disableexampointprint'}) eq 'yes') {
2733: $allow_print_points=0;
2734: }
1.463 foxr 2735: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2736: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2737:
2738: }
1.233 www 2739: } elsif ($target eq 'web') {
1.479 raeburn 2740: if ($status eq 'CAN_ANSWER') {
2741: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2742: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
2743: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
2744: my $num = scalar(@Apache::inputtags::partlist)-1;
2745: if ($probrandomize eq 'randomizetry') {
2746: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
2747: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2748: } else {
2749: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2750: if ($probrandtries ne $reqtries) {
2751: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2752: }
2753: }
2754: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
2755: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2756: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2757: }
2758: }
1.475 raeburn 2759: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2760: }
2761: }
2762: }
2763: } elsif ($target eq 'edit') {
2764: $result.=&Apache::edit::tag_start($target,$token);
2765: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2766: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2767: ' '.
2768: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2769: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2770: } elsif ($target eq 'modified') {
2771: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2772: $safeeval,'id','display');
1.159 albertel 2773: if ($constructtag) {
1.225 albertel 2774: #limiting ids to only letters numbers, and space
1.224 www 2775: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2776: $result = &Apache::edit::rebuild_tag($token);
2777: }
2778: }
2779: return $result;
1.11 albertel 2780: }
2781:
2782: sub end_part {
1.159 albertel 2783: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2784: &Apache::lonxml::debug("in end_part $target ");
2785: my $status=$Apache::inputtags::status['-1'];
2786: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2787: my $in_order_show=&ordered_show_check();
1.321 albertel 2788: my $result;
2789: if (!$Apache::lonxml::metamode) {
2790: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2791: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2792: }
1.312 albertel 2793: if ($target eq 'grade') {
1.249 albertel 2794: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2795: !$hidden && $in_order_show) {
1.311 foxr 2796: $result.=&Apache::inputtags::grade;
1.249 albertel 2797: } else {
2798: # move any submission data to .hidden
2799: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2800: }
1.283 albertel 2801: } elsif (($target eq 'web' || $target eq 'tex') &&
2802: !$hidden && $in_order_show) {
1.159 albertel 2803: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2804: $target);
1.490 raeburn 2805: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2806: ($env{'form.grade_imsexport'})) {
1.212 albertel 2807: $gradestatus='';
2808: }
1.311 foxr 2809: $result.=$gradestatus;
1.265 sakharuk 2810: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2811: } elsif ($target eq 'edit') {
1.311 foxr 2812: $result.=&Apache::edit::end_table();
1.322 albertel 2813: } elsif ($target eq 'modified') {
2814: $result .= $token->[2];
1.159 albertel 2815: }
2816: pop @Apache::inputtags::status;
2817: $Apache::inputtags::part='';
1.512.2.10 raeburn 2818: $Apache::inputtags::leniency='';
1.295 albertel 2819: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2820: return $result;
1.11 albertel 2821: }
1.1 albertel 2822:
1.25 albertel 2823: sub start_preduedate {
1.326 albertel 2824: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2825: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2826: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2827: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2828: if (!$Apache::lonhomework::scantronmode &&
2829: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2830: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2831: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2832: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2833: }
1.24 albertel 2834: }
1.159 albertel 2835: return '';
1.24 albertel 2836: }
2837:
1.25 albertel 2838: sub end_preduedate {
1.159 albertel 2839: return '';
1.24 albertel 2840: }
2841:
1.369 foxr 2842: # In all the modes where <postanswerdate> text is
2843: # displayable, all we do is eat up the text between the start/stop
2844: # tags if the conditions are not right to display it.
1.25 albertel 2845: sub start_postanswerdate {
1.326 albertel 2846: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2847: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2848: &Apache::lonnet::allowed('pav',
2849: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2850: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2851: $target eq 'tex' ) {
1.300 albertel 2852: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2853: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2854: (($target eq 'tex') && !$pav)) {
1.326 albertel 2855: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2856: }
2857: }
2858: return '';
1.24 albertel 2859: }
2860:
1.25 albertel 2861: sub end_postanswerdate {
1.159 albertel 2862: return '';
1.24 albertel 2863: }
2864:
1.25 albertel 2865: sub start_notsolved {
1.326 albertel 2866: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2867: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2868: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2869: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2870: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2871: if ($gradestatus =~ /^correct/ &&
2872: &Apache::response::show_answer()) {
1.159 albertel 2873: &Apache::lonxml::debug("skipping");
1.326 albertel 2874: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2875: }
1.24 albertel 2876: }
1.159 albertel 2877: return '';
1.24 albertel 2878: }
2879:
1.25 albertel 2880: sub end_notsolved {
1.159 albertel 2881: return '';
1.24 albertel 2882: }
2883:
2884: sub start_solved {
1.326 albertel 2885: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2886: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2887: $target eq 'tex') {
2888: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2889: if ($gradestatus !~ /^correct/ ||
2890: !&Apache::response::show_answer()) {
1.326 albertel 2891: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2892: }
1.24 albertel 2893: }
1.159 albertel 2894: return '';
1.24 albertel 2895: }
2896:
2897: sub end_solved {
1.248 albertel 2898: return '';
2899: }
2900:
2901: sub start_problemtype {
1.326 albertel 2902: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2903: my $result;
1.339 albertel 2904: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2905: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2906: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2907: if (!defined($mode)) { $mode='show'; }
2908: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2909: my $found=0;
2910: foreach my $type (split(',',$for)) {
2911: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2912: }
2913: if ($mode eq 'show' && !$found) {
1.326 albertel 2914: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2915: }
2916: if ($mode eq 'hide' && $found) {
1.326 albertel 2917: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2918: }
2919: } elsif ($target eq 'edit') {
2920: $result .=&Apache::edit::tag_start($target,$token);
2921: $result.=&Apache::edit::select_arg('Mode:','mode',
2922: [['show','Show'],
2923: ['hide','Hide']]
2924: ,$token);
2925: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.512.2.2 raeburn 2926: [ ['exam','Exam/Quiz Problem'],
1.248 albertel 2927: ['survey','Survey'],
1.465 raeburn 2928: ['surveycred','Survey (with credit)'],
2929: ['anonsurvey','Anonymous Survey'],
2930: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2931: ['problem','Homework Problem'],
1.479 raeburn 2932: ['practice','Practice Problem'],
2933: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2934: ,$token);
2935: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2936: } elsif ($target eq 'modified') {
2937: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2938: $safeeval,'mode','for');
2939: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2940: }
2941: return $result;
2942: }
2943:
2944: sub end_problemtype {
1.159 albertel 2945: return '';
1.24 albertel 2946: }
1.34 albertel 2947:
2948: sub start_startouttext {
1.159 albertel 2949: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2950: my @result=(''.'');
2951: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2952:
2953: my $nesting =
2954: &Apache::lonxml::set_state('outtext',
2955: &Apache::lonxml::get_state('outtext')+1);
2956: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2957: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2958: }
1.159 albertel 2959: return (@result);
1.34 albertel 2960: }
1.159 albertel 2961:
1.34 albertel 2962: sub end_startouttext {
1.326 albertel 2963: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2964: my $result='';
2965: my $text='';
2966: if ($target eq 'edit') {
1.424 foxr 2967: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2968: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.512.2.11 raeburn 2969: $result.=&Apache::edit::start_table($token)."<tr><td>".&Apache::loncommon::insert_folding_button()
2970: ." ".&mt('Text Block')."</td>"
1.438 bisitz 2971: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2972: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 2973: .'</span></td>'
1.512.2.12 raeburn 2974: .'<td><span id="math_'.$areaid.'">';
2975: if ($env{'environment.nocodemirror'}) {
2976: $result.=&Apache::lonhtmlcommon::dragmath_button($areaid,1);
2977: } else {
2978: $result.=' ';
2979: }
2980: $result.='</span></td>'
1.474 raeburn 2981: .'<td>'
2982: .&Apache::edit::insertlist($target,$token)
2983: .'</td>'
1.512.2.5 raeburn 2984: .'<td class="LC_edit_problem_latexhelper">' .
1.474 raeburn 2985: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2986: &Apache::edit::end_row().
1.362 albertel 2987: &Apache::edit::start_spanning_row()."\n".
1.255 www 2988: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2989: }
2990: if ($target eq 'modified') {
1.219 albertel 2991: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2992: }
2993: if ($target eq 'tex') {
2994: $result .= '\noindent ';
2995: }
2996: return $result;
1.34 albertel 2997: }
1.159 albertel 2998:
1.34 albertel 2999: sub start_endouttext {
1.159 albertel 3000: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3001: my $result='';
3002: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
3003: if ($target eq "modified") {
3004: $result='<endouttext />'.
1.377 albertel 3005: &Apache::edit::handle_insertafter('startouttext');
3006: }
1.404 albertel 3007:
3008: my $nesting =
3009: &Apache::lonxml::set_state('outtext',
3010: &Apache::lonxml::get_state('outtext')-1);
3011: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
3012: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
3013: &Apache::lonxml::set_state('outtext', 0);
3014: }
1.159 albertel 3015: return $result;
1.34 albertel 3016: }
1.159 albertel 3017:
1.34 albertel 3018: sub end_endouttext {
1.159 albertel 3019: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3020: my @result=('','');
3021: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
3022: return (@result);
1.34 albertel 3023: }
1.159 albertel 3024:
1.45 albertel 3025: sub delete_startouttext {
1.326 albertel 3026: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
3027: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 3028: my $text=$$parser['-1']->get_text("/endouttext");
3029: my $ntoken=$$parser['-1']->get_token();
3030: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
3031: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
3032: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
3033: # they did the last time round
3034: &Apache::lonxml::increasedepth($ntoken);
3035: &Apache::lonxml::decreasedepth($ntoken);
3036: return 1;
1.193 www 3037: }
3038:
3039: sub start_simpleeditbutton {
3040: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3041: my $result='';
1.284 albertel 3042: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 3043: ($target eq 'web') &&
1.330 albertel 3044: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 3045: my $url=$env{'request.noversionuri'};
1.193 www 3046: $url=~s/\?.*$//;
1.367 albertel 3047: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 3048: # Warning makes more sense and is more important on edit screen
1.442 bisitz 3049: # $result='<p class="LC_warning">'
3050: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
3051: # .&Apache::loncommon::help_open_topic('Caching')
3052: # .'</p>';
1.486 www 3053: $result.=&Apache::loncommon::head_subbox(
3054: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 3055: .&Apache::lonhtmlcommon::add_item_funclist(
3056: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
3057: .&mt('Edit').'</a>')
1.486 www 3058: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 3059:
1.193 www 3060: }
3061: return $result;
3062: }
3063:
3064: sub end_simpleeditbutton {
3065: return '';
1.45 albertel 3066: }
1.34 albertel 3067:
1.428 raeburn 3068: sub practice_problem_header {
3069: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
3070: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
3071: '</span>';
3072: }
3073:
1.479 raeburn 3074: sub randomizetry_problem_header {
3075: my ($problemstatus,$reqtries) = @_;
3076: my ($header,$text);
3077: if ($reqtries > 1) {
3078: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
3079: if (($problemstatus eq 'no') ||
3080: ($problemstatus eq 'no_feedback_ever')) {
3081: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3082: } else {
3083: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3084: }
3085: } else {
3086: $header = &mt('New Problem Variation Each Try');
3087: if (($problemstatus eq 'no') ||
3088: ($problemstatus eq 'no_feedback_ever')) {
3089: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
3090:
3091: } else {
3092: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
3093: }
3094: }
3095: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
3096: '<span class="LC_info">'.$text.'</span><hr />';
3097: }
3098:
3099: sub randomizetry_part_header {
3100: my ($problemstatus,$reqtries,$num) = @_;
3101: my ($header,$text);
3102: if ($reqtries eq 'none') {
3103: $header = &mt('No Question Variation');
3104: $text = &mt('For this question there will no new variation after a try.');
3105: } elsif ($reqtries > 1) {
3106: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
3107: if (($problemstatus eq 'no') ||
3108: ($problemstatus eq 'no_feedback_ever')) {
3109: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3110: } else {
3111: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3112: }
3113: } else {
3114: $header = &mt('New Question Variation For Each Try');
3115: if (($problemstatus eq 'no') ||
3116: ($problemstatus eq 'no_feedback_ever')) {
3117: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
3118: } else {
3119: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
3120: }
3121: }
3122: my $output;
3123: if ($num > 1) {
3124: $output .= '<hr />';
3125: }
3126: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
3127: '<span class="LC_info">'.$text.'</span><br /><br />';
3128: return $output;
3129: }
3130:
1.1 albertel 3131: 1;
3132: __END__
1.435 jms 3133:
3134: =pod
3135:
3136: =back
3137:
3138: =cut
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