Annotation of loncom/homework/structuretags.pm, revision 1.527
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.527 ! golterma 4: # $Id: structuretags.pm,v 1.526 2014/12/15 18:44:20 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 {
227: return &Apache::loncommon::resize_textarea_js().
1.527 ! golterma 228: &Apache::loncommon::colorfuleditor_js().
1.416 raeburn 229: &setmode_javascript().
1.400 albertel 230: <<'JS';
231: <script type="text/javascript">
1.483 raeburn 232: // <![CDATA[
1.494 raeburn 233: function setSubmittedPart (part,prefix) {
234: if (typeof(prefix) == 'undefined') {
235: this.document.lonhomework.submitted.value="part_"+part;
236: } else {
237: for (var i=0;i<this.document.lonhomework.elements.length;i++) {
238: if (this.document.lonhomework.elements[i].name == prefix+'submitted') {
239: this.document.lonhomework.elements[i].value="part_"+part;
240: }
241: }
242: }
1.400 albertel 243: }
244:
245: function image_response_click (which, e) {
246: init_geometry();
247: if (!e) { e = window.event; } //IE
248: var input_element = document.lonhomework.elements[which];
1.401 albertel 249: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 250: var token = token_element.value;
1.401 albertel 251: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 252: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
253: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
254: var click = x+':'+y;
255: input_element.value = click;
1.485 raeburn 256: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
1.400 albertel 257: }
1.520 raeburn 258:
259: var submithandled = 0;
1.521 raeburn 260: var keypresshandled = 0;
1.520 raeburn 261:
262: $(document).ready(function(){
1.521 raeburn 263:
264: $(document).keypress(function(event){
265: var keycode = (event.keyCode ? event.keyCode : event.which);
266: if ((keycode == '13') && (keypresshandled == 0)) {
267: if ( $( document.activeElement ).hasClass("LC_textline") ) {
268: keypresshandled = 1;
269: var idsArray = $( document.activeElement ).attr("id").split(/HWVAL_/);
270: if (idsArray.length) {
271: event.preventDefault();
272: var itemsArray = idsArray[1].split(/_/);
273: var buttonId = idsArray[0]+'submit_'+itemsArray[0];
274: $("#"+buttonId).trigger("click");
275: }
276: }
277: }
278: });
279:
1.520 raeburn 280: $(document).delegate('form :submit', 'click', function( event ) {
281: if ( $( this ).hasClass( "LC_hwk_submit" ) ) {
282: var buttonId = this.id;
283: if (submithandled == 0) {
284: submithandled = 1;
285: $( "#msg_"+buttonId ).css({"display": "inline","background-color": "#87cefa",
1.521 raeburn 286: "color": "black","padding": "2px"}) ;
287: if (( $(this.form).id == "LC_page" ) && ($('input[name="all_submit"]').length )) {
1.522 raeburn 288: if (buttonId != "all_submit") {
289: $( ".LC_status_"+buttonId ).hide();
290: if (( "#"+buttonId+"_pressed" ).length) {
291: $( "#"+buttonId+"_pressed" ).val( "1" );
292: }
1.520 raeburn 293: }
1.522 raeburn 294: } else {
295: $( ".LC_status_"+buttonId ).hide();
1.520 raeburn 296: }
297: $(this.form).submit();
1.521 raeburn 298: $( ".LC_hwk_submit" ).prop( "disabled", true);
299: $( ".LC_textline" ).prop( "readonly", "readonly");
1.520 raeburn 300: event.preventDefault();
301: return true;
302: }
303: }
304: });
305: });
306:
1.483 raeburn 307: // ]]>
1.400 albertel 308: </script>
309: JS
310: }
311:
1.416 raeburn 312: sub setmode_javascript {
313: return <<"ENDSCRIPT";
314: <script type="text/javascript">
1.485 raeburn 315: // <![CDATA[
1.416 raeburn 316: function setmode(form,probmode) {
317: form.problemmode.value = probmode;
318: form.submit();
319: }
1.485 raeburn 320: // ]]>
1.416 raeburn 321: </script>
322: ENDSCRIPT
323: }
324:
1.48 albertel 325: sub page_start {
1.345 albertel 326: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
327: $extra_head)=@_;
1.159 albertel 328: my %found;
1.207 albertel 329: foreach my $taginside (@$tagstack) {
1.159 albertel 330: foreach my $taglookedfor ('html','body','form') {
331: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
332: }
333: }
334:
1.343 albertel 335: if ($target eq 'tex') {
336: return
337: &Apache::londefdef::start_html($target,$token,$tagstack,
338: $parstack,$parser,$safeeval);
339: }
340:
1.474 raeburn 341: $extra_head .= &homework_js().
342: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
343: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
344: my %textarea_args = (
345: dragmath => 'math',
346: );
347: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 348: }
1.478 raeburn 349: my $is_task = ($env{'request.uri'} =~ /\.task$/);
1.493 raeburn 350: my $needs_upload;
1.495 raeburn 351: my ($symb)= &Apache::lonnet::whichuser();
352: my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
1.478 raeburn 353: if ($is_task) {
1.495 raeburn 354: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
1.493 raeburn 355: } else {
356: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.uploadedfiletypes") ne '') {
1.495 raeburn 357: unless ($env{'request.state'} eq 'construct') {
358: my $navmap = Apache::lonnavmaps::navmap->new();
359: if (ref($navmap)) {
360: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 361: my $is_page;
362: if (ref($mapres)) {
363: $is_page = $mapres->is_page();
364: }
365: unless ($is_page) {
1.495 raeburn 366: $needs_upload = 1;
367: }
368: }
369: }
1.493 raeburn 370: } else {
371: unless ($env{'request.state'} eq 'construct') {
372: my $navmap = Apache::lonnavmaps::navmap->new();
373: if (ref($navmap)) {
1.495 raeburn 374: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 375: my $is_page;
376: if (ref($mapres)) {
377: $is_page = $mapres->is_page();
378: }
379: unless ($is_page) {
1.495 raeburn 380: my $res = $navmap->getBySymb($symb);
381: if (ref($res)) {
382: my $partlist = $res->parts();
383: if (ref($partlist) eq 'ARRAY') {
384: foreach my $part (@{$partlist}) {
385: my @types = $res->responseType($part);
386: my @ids = $res->responseIds($part);
387: for (my $i=0; $i < scalar(@ids); $i++) {
388: if ($types[$i] eq 'essay') {
389: my $partid = $part.'_'.$ids[$i];
390: if (&Apache::lonnet::EXT("resource.$partid.uploadedfiletypes") ne '') {
391: $needs_upload = 1;
392: last;
393: }
1.493 raeburn 394: }
395: }
396: }
1.495 raeburn 397: }
398: }
1.493 raeburn 399: }
400: }
401: }
402: }
1.495 raeburn 403: if ($needs_upload) {
404: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
405: }
1.478 raeburn 406: }
1.425 raeburn 407:
1.344 albertel 408: my %body_args;
409: if (defined($found{'html'})) {
410: $body_args{'skip_phases'}{'head'}=1;
411: } else {
1.343 albertel 412:
1.345 albertel 413: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 414:
1.379 albertel 415: $extra_head .= &Apache::londefdef::generate_css_links();
416:
1.384 albertel 417: if ($env{'request.state'} eq 'construct') {
1.343 albertel 418: $extra_head.=&Apache::edit::js_change_detection().
419: "<script type=\"text/javascript\">\n".
420: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
421: &Apache::loncommon::browser_and_searcher_javascript().
422: "\n</script>\n";
1.525 raeburn 423: if ($target eq 'edit') {
424: $extra_head .= &Apache::edit::js_update_linknum();
425: }
1.343 albertel 426: }
1.159 albertel 427: }
1.343 albertel 428:
1.446 bisitz 429: my $pageheader = '';
1.344 albertel 430: if (defined($found{'body'})) {
431: $body_args{'skip_phases'}{'body'}=1;
432: } elsif (!defined($found{'body'})
433: && $env{'request.state'} eq 'construct') {
1.343 albertel 434: if ($target eq 'web' || $target eq 'edit') {
1.513 raeburn 435: # Breadcrumbs for Authoring Space
1.450 bisitz 436: &Apache::lonhtmlcommon::clear_breadcrumbs();
437: &Apache::lonhtmlcommon::add_breadcrumb({
1.513 raeburn 438: 'text' => 'Authoring Space',
1.497 raeburn 439: 'href' => &Apache::loncommon::authorspace($env{'request.uri'}),
1.450 bisitz 440: });
1.460 droeschl 441: # breadcrumbs (and tools) will be created
442: # in start_page->bodytag->innerregister
443:
1.450 bisitz 444: # FIXME Where are we?
445: # &Apache::lonhtmlcommon::add_breadcrumb({
446: # 'text' => 'Problem Editing', # 'Problem Testing'
447: # 'href' => '',
448: # });
1.460 droeschl 449: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 450: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 451: }
1.272 albertel 452: } elsif (!defined($found{'body'})) {
1.343 albertel 453: my %add_entries;
1.159 albertel 454: my $background=&Apache::lonxml::get_param('background',$parstack,
455: $safeeval);
1.343 albertel 456: if ($background ne '' ) {
457: $add_entries{'background'} = $background;
458: }
1.344 albertel 459:
1.290 albertel 460: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
461: $safeeval);
1.446 bisitz 462: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 463:
1.446 bisitz 464: $body_args{'bgcolor'} = $bgcolor;
465: # $body_args{'no_title'} = 1;
466: $body_args{'force_register'} = 1;
467: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 468: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 469: $body_args{'only_body'} = 1;
1.518 raeburn 470: } elsif ($target eq 'web') {
471: $body_args{'print_suppress'} = 1;
1.446 bisitz 472: }
1.344 albertel 473: }
1.365 albertel 474: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 475: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
476: \%body_args);
1.446 bisitz 477: $page_start .= $pageheader;
1.462 raeburn 478: if (!defined($found{'body'})
479: && $env{'request.state'} ne 'construct'
480: && ($target eq 'web' || $target eq 'webgrade')) {
481:
482: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
483: if ($symb eq '' && !$publicuser) {
484: $page_start .= '<p class="LC_info">'
485: .&mt('Browsing resource, all submissions are temporary.')
486: .'</p>';
1.457 bisitz 487: }
1.344 albertel 488: }
489:
1.409 albertel 490: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 491: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 492: }
493: my $form_tag_start;
494: if (!defined($found{'form'})) {
1.337 albertel 495: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 496: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 497: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 498: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 499: $form_tag_start.=$uri.'" ';
500: if ($target eq 'edit') {
501: $form_tag_start.=&Apache::edit::form_change_detection();
502: }
1.493 raeburn 503: my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
504: my ($path,$multiresp) =
505: &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
1.495 raeburn 506: if (($is_task) || ($needs_upload)) {
507: $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
1.478 raeburn 508: }
1.368 albertel 509: $form_tag_start.='>'."\n";
1.355 albertel 510:
511: if ($symb =~ /\S/) {
512: $symb=
513: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
514: $form_tag_start.=
1.368 albertel 515: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 516: }
1.159 albertel 517: }
1.343 albertel 518: return ($page_start,$form_tag_start);
1.105 albertel 519: }
520:
1.141 matthew 521: #use Time::HiRes();
1.105 albertel 522: sub get_resource_name {
1.159 albertel 523: my ($parstack,$safeeval)=@_;
1.388 foxr 524: my $name;
1.204 albertel 525: if (defined($Apache::lonhomework::name)) {
1.388 foxr 526: $name = $Apache::lonhomework::name;
527: } else {
528: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 529: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 530: if ($name eq '') {
531: $name=&Apache::lonnet::EXT('resource.title');
532: if ($name eq 'con_lost') { $name = ''; }
533: }
534: if ($name!~/\S+/) {
535: $name=$env{'request.uri'};
536: $name=~s-.*/([^/]+)$-$1-;
537: }
538: # The name has had html tags escaped:
539:
540: $name=~s/</</gs;
541: $name=~s/>/>/gs;
542:
543: $Apache::lonhomework::name=$name;
1.204 albertel 544: }
1.159 albertel 545: return $name;
1.105 albertel 546: }
547:
548: sub setup_rndseed {
1.479 raeburn 549: my ($safeeval,$target)=@_;
1.367 albertel 550: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 551: my ($questiontype,$set_safespace,$rndseed);
552: if ($target eq 'analyze') {
553: $questiontype = $env{'form.grade_questiontype'};
554: }
555: unless (defined($questiontype)) {
556: $questiontype = $Apache::lonhomework::type;
557: }
1.333 albertel 558: if ($env{'request.state'} eq "construct"
559: || $symb eq ''
560: || $Apache::lonhomework::type eq 'practice'
561: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 562: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 563: ['rndseed']);
1.284 albertel 564: $rndseed=$env{'form.rndseed'};
1.159 albertel 565: if (!$rndseed) {
1.162 albertel 566: $rndseed=$Apache::lonhomework::history{'rndseed'};
567: if (!$rndseed) {
568: $rndseed=time;
569: }
1.284 albertel 570: $env{'form.rndseed'}=$rndseed;
1.162 albertel 571: }
1.479 raeburn 572: if (($env{'request.state'} eq "construct") &&
573: ($Apache::lonhomework::type eq 'randomizetry')) {
574: my $tries = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
575: if ($tries) {
576: $rndseed += $tries;
577: }
1.480 raeburn 578: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 579: }
1.374 albertel 580: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
581: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 582: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 583: srand(time);
584: $rndseed=int(rand(2100000000));
1.284 albertel 585: $env{'form.rndseed'}=$rndseed;
586: delete($env{'form.resetdata'});
587: delete($env{'form.newrandomization'});
1.159 albertel 588: }
1.488 www 589: $rndseed=~s/\,/\:/g;
590: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 591: if (defined($rndseed)) {
592: my ($c1,$c2)=split(/\:/,$rndseed);
593: unless ($c2) { $c2=0; }
594: unless (($c1==int($c1)) && ($c2==int($c2))) {
595: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
596: }
1.187 albertel 597: }
1.247 albertel 598: if ($Apache::lonhomework::history{'resource.CODE'}) {
599: $rndseed=&Apache::lonnet::rndseed();
600: }
1.479 raeburn 601: $set_safespace = 1;
602: } elsif ($questiontype eq 'randomizetry') {
603: if ($target eq 'analyze') {
604: if (defined($env{'form.grade_rndseed'})) {
605: $rndseed = $env{'form.grade_rndseed'};
606: }
607: }
608: unless (($target eq 'analyze') && (defined($rndseed))) {
609: $rndseed=&Apache::lonnet::rndseed();
610: my $curr_try = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
611: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
612: $curr_try ++;
613: }
614: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
615: $rndseed = $1;
616: }
617: if ($curr_try) {
618: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
619: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
620: my $inc = int(($curr_try-1)/$reqtries);
621: $rndseed += $inc;
622: } else {
623: $rndseed += $curr_try;
624: }
625: }
626: }
627: $set_safespace = 1;
628: }
629: if ($set_safespace) {
630: if ($safeeval) {
631: &Apache::lonxml::debug("Setting rndseed to $rndseed");
632: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
633: }
634: }
635: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
636: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 637: }
638: return $rndseed;
1.105 albertel 639: }
640:
1.268 albertel 641: sub remember_problem_state {
642: return '
1.284 albertel 643: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
644: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
645: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 646: }
647:
1.487 www 648: sub problem_edit_action_button {
649: my ($name,$action,$accesskey,$text,$flag)=@_;
650: my $actionscript="setmode(this.form,'$action')";
651: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
652: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
653: }
654:
1.423 www 655: sub problem_edit_buttons {
1.487 www 656: my ($mode)=@_;
657: # Buttons that do not save
658: my $result='<div class="LC_edit_problem_discards">'.
659: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
660: if ($mode eq 'editxml') {
661: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
662: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
663: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
664: } else {
665: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
666: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
667: }
668: $result.="\n</div>";
669: # Buttons that save
670: $result.='<div class="LC_edit_problem_saves">';
671: if ($mode eq 'editxml') {
672: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
673: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
674: } else {
675: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
676: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
677: }
678: $result.="\n</div>\n";
679: return $result;
1.423 www 680: }
681:
1.527 ! golterma 682: sub insert_menu_datastructure {
! 683:
! 684: my $template_menu = &template_dropdown_datastructure();
! 685: my $responseblock_menu = &responseblock_dropdown_datastructure();
! 686: my $conditional_scripting = &conditional_scripting_datastructure();
! 687: my $misc = &misc_datastructure();
! 688:
! 689: my @menu = ($template_menu, $responseblock_menu, $conditional_scripting, $misc);
! 690: return \@menu;
! 691:
! 692: }
! 693:
! 694: sub template_dropdown_datastructure {
! 695: # gathering the all templates and their path, title, category and help topic
! 696: my @templates = &Apache::lonhomework::get_template_list('problem');
! 697: # template category => title
! 698: my %tmplthash = ();
! 699: # template title => path
! 700: my %tmpltcontent = ();
! 701:
! 702: foreach my $template (@templates){
! 703: # put in hash if the template is not empty
! 704: unless ($template->[1] eq ''){
! 705: push(@{$tmplthash{$template->[2]}}, $template->[1]);
! 706: push(@{$tmpltcontent{$template->[1]}},$template->[0]);
! 707: }
! 708: }
! 709:
! 710: my $catList = [];
! 711: foreach my $cat (sort keys %tmplthash) {
! 712: my $catItems = [];
! 713: foreach my $title (sort @{$tmplthash{$cat}}) {
! 714: my $path = $tmpltcontent{$title}->[0];
! 715: my $code;
! 716: open(FH, "<$path");
! 717: while(<FH>){
! 718: $code.= $_ unless $_ =~ /(<problem>)|(<\/problem>)/;
! 719: }
! 720: close(FH);
! 721:
! 722: if ($code ne '') {
! 723: my $href = 'javascript:insertText(\'' . &convert_for_js(&HTML::Entities::encode($code)) . '\')';
! 724: my $currItem = [$href, $title, undef];
! 725: push @{$catItems}, $currItem;
! 726: }
! 727: }
! 728: push @{$catList}, [$catItems, $cat, undef];
! 729: }
! 730:
! 731: my $templDropdown = [$catList, &mt("Complete Problem Templates"), undef];
! 732: return $templDropdown;
! 733: }
! 734:
! 735: sub responseblock_dropdown_datastructure {
! 736:
! 737: my $mathCat = [
! 738: [
! 739: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_formularesponse())) . "\')", &mt("Formula Response"), undef],
! 740: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_functionplotresponse())) . "\')", &mt("Function Plot Response"), undef],
! 741: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_mathresponse())) . "\')", &mt("Math Response"), undef],
! 742: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_numericalresponse())) . "\')", &mt("Numerical Response"), undef]
! 743: ],
! 744: &mt("Math"),
! 745: undef
! 746: ];
! 747:
! 748: my $miscCat = [
! 749: [
! 750: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_imageresponse())) . "\')", &mt("Click on Image"), undef],
! 751: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_customresponse())) . "\')", &mt("Custom Response"), undef],
! 752: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_externalresponse())) . "\')", &mt("External Response"), undef],
! 753: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_matchresponse())) . "\')", &mt("Match Response"), undef],
! 754: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_radiobuttonresponse())) . "\')", &mt("One out of N Statement"), undef],
! 755: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_optionresponse())) . "\')", &mt("Optionresponse"), undef],
! 756: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_rankresponse())) . "\')", &mt("Rank Values"), undef]
! 757: ],
! 758: &mt("Misc"),
! 759: undef
! 760: ];
! 761:
! 762: my $chemCat = [
! 763: [
! 764: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_reactionresponse())) . "\')", &mt("Chemical Reaction"), undef],
! 765: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_organicresponse())) . "\')", &mt("Organic Structure"), undef]
! 766: ],
! 767: &mt("Chemical"),
! 768: undef
! 769: ];
! 770:
! 771: my $textCat = [
! 772: [
! 773: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_stringresponse())) . "\')", &mt("String Response"), undef],
! 774: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_essayresponse())) . "\')", &mt("Essay"), undef]
! 775: ],
! 776: &mt("Text"),
! 777: undef
! 778: ];
! 779:
! 780: my $cats = [[$mathCat, $miscCat, $chemCat, $textCat], &mt("Response Types"), undef];
! 781: return $cats;
! 782: }
! 783:
! 784:
! 785: sub conditional_scripting_datastructure {
! 786: # TODO: corresponding routines should be used for the javascript:insertText parts
! 787: # instead of the placeholder routine default_xml_tag with the tags
! 788: # e.g. &default_xml_tag("postanswerdate") should be replaced with a routine which
! 789: # returns the corresponding content for this case
! 790:
! 791: #TODO translated is currently temporarily here, another solution should be found where the
! 792: # needed string can be retrieved
! 793:
! 794: my $translatedTag = '
! 795: <translated>
! 796: <lang which="en"></lang>
! 797: <lang which="default"></lang>
! 798: </translated>';
! 799:
! 800: my $cat = [
! 801: [
! 802: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode($translatedTag)) . "\')", &mt("Translated Tag"), undef],
! 803: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("block"))) . "\')", &mt("Conditional Block"), undef],
! 804: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("postanswerdate"))) . "\')", &mt("After Answer Block"), undef],
! 805: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("preduedate"))) . "\')", &mt("Before Due Date Block"), undef],
! 806: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("solved"))) . "\')", &mt("Block For After Solved"), undef],
! 807: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("notsolved"))) . "\')", &mt("Block For When Not Solved"), undef]
! 808: ],
! 809: &mt("Contitional Scripting"),
! 810: undef
! 811: ];
! 812:
! 813: return $cat;
! 814: }
! 815:
! 816: sub misc_datastructure {
! 817:
! 818: my $graphicalCat = [
! 819: [
! 820: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_img())) . "\')", &mt("Image"), undef],
! 821: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::lonplot::insert_gnuplot())) . "\')", &mt("GNU Plot"), undef],
! 822: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_organicstructure())) . "\')", &mt("Organic Structure"), undef]
! 823: ],
! 824: "Graphical",
! 825: undef
! 826: ];
! 827:
! 828: my $advancedCat = [
! 829: [
! 830: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::edit::insert_script())) . "\')", &mt("Script Block"), undef],
! 831: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("allow"))) . "\')", &mt("File Dependencies"), undef],
! 832: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&default_xml_tag("import"))) . "\')", &mt("Import a File"), undef],
! 833: ["javascript:insertText(\'" . &convert_for_js(&HTML::Entities::encode(&Apache::londefdef::insert_meta())) . "\')", &mt("Custom Metadata"), undef]
! 834: ],
! 835: "advanced",
! 836: undef
! 837: ];
! 838:
! 839: my $cats = [[$graphicalCat, $advancedCat], &mt("misc"), undef];
! 840: return $cats;
! 841: }
! 842:
! 843: # helper routine for the datastructure building subroutines
! 844: sub default_xml_tag {
! 845: my ($tag) = @_;
! 846: return "\n<$tag></$tag>";
! 847: }
! 848:
! 849:
! 850: sub helpmenu_datastructure {
! 851:
! 852: my $width = 500;
! 853: my $height = 600;
! 854:
! 855: my $helpers = [
! 856: ['Problem_LON-CAPA_Functions', &mt('Script Functions')],
! 857: ['Greek_Symbols', &mt('Greek Symbols')],
! 858: ['Other_Symbols', &mt('Other Symbols')],
! 859: ['Authoring_Output_Tags', &mt('Output Tags')],
! 860: ['Authoring_Multilingual_Problems',
! 861: &mt('How to create problems in different languages')]
! 862: ];
! 863:
! 864: my $help_structure = [];
! 865:
! 866: foreach my $count (0..(scalar(@{$helpers})-1)) {
! 867: my $filename = $helpers->[$count]->[0];
! 868: my $title = $helpers->[$count]->[1];
! 869: my $href = &HTML::Entities::encode("javascript:openMyModal('/adm/help/$filename.hlp',$width,$height,'yes');");
! 870: push @{$help_structure}, [$href, $title, undef];
! 871: }
! 872:
! 873: return $help_structure;
! 874: }
! 875:
! 876: # we need substitution to not break javascript code
! 877: sub convert_for_js {
! 878: my $return = shift;
! 879: $return =~ s|script|ESCAPEDSCRIPT|g;
! 880: $return =~ s|\n|\\r\\n|g;
! 881: $return =~ s|'|\\'|g;
! 882: $return =~ s|'|\\'|g;
! 883: return $return;
! 884: }
! 885:
1.423 www 886: sub problem_edit_header {
1.527 ! golterma 887: my ($mode)=@_;
! 888: my $return = '<input type="hidden" name="submitted" value="edit" />'.
1.487 www 889: &remember_problem_state('edit').'
1.527 ! golterma 890: <div class="LC_edit_problem_header">
! 891: <div class="LC_edit_problem_header_title">
! 892: '.&mt('Problem Editing').$mode.&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
! 893: </div><div class="LC_edit_actionbar" id="actionbar">'.
! 894: '<input type="hidden" name="problemmode" value="saveedit" />'.
! 895: &problem_edit_buttons();
! 896:
! 897: $return.='<hr style="clear:both;visibility:hidden;" />
! 898: </div></div>'
! 899: .&Apache::lonxml::message_location();
! 900: $return .= '<link rel="stylesheet" href="/adm/codemirror/codemirror-combined.css" />
! 901: <script type="text/javascript" src="/adm/codemirror/codemirror-compressed-colorful.js"></script>';
! 902:
! 903: $return .= '<script type="text/javascript" src="/adm/jQuery/addons/jquery-scrolltofixed.js"></script>
! 904: <script type="text/javascript">
! 905: // unless internet explorer
! 906: if (!(window.navigator.appName == "Microsoft Internet Explorer" && (document.documentMode || document.compatMode))){
! 907: $(document).ready(
! 908: function() {
! 909: $(\'.LC_edit_actionbar\').scrollToFixed(
! 910: {
! 911: fixed: function(){
! 912: $(this).find(\'.LC_edit_actionbar\').css(\'height\', \'31px\');
! 913: }
! 914: }
! 915: );
! 916: }
! 917: );
! 918: }
! 919: </script>
! 920: <table id="LC_edit_problem_colorful" border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
! 921: return $return;
1.105 albertel 922: }
923:
924: sub problem_edit_footer {
1.527 ! golterma 925: my $resource = $env{'request.ambiguous'};
1.412 albertel 926: return '</td></tr></table><br />
927: <div class="LC_edit_problem_footer">
1.453 bisitz 928: <hr />'.
1.423 www 929: &problem_edit_buttons().'
1.459 bisitz 930: <hr style="clear:both;" />
1.527 ! golterma 931: <script type="text/javascript">
! 932: restoreState("'.$resource.'");
! 933: restoreScrollPosition("'.$resource.'");
! 934: </script>
1.412 albertel 935: </div>
936: '.
1.342 albertel 937: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 938: }
939:
1.235 albertel 940: sub option {
941: my ($value,$name) = @_;
942: my $result ="<option value='".$value."' ";
1.284 albertel 943: if ($env{'form.'.$name} eq $value) {
1.235 albertel 944: $result.=" selected='on' ";
945: }
946: $result.='>';
947: return $result;
948: }
949:
1.105 albertel 950: sub problem_web_to_edit_header {
1.159 albertel 951: my ($rndseed)=@_;
1.406 albertel 952: my $result .= '<div class="LC_edit_problem_header">';
953:
954: if (!$Apache::lonhomework::parsing_a_task) {
955: $result .=
956: '<div class="LC_edit_problem_header_title">'.
957: &mt('Problem Testing').
958: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
959: '</div>';
960: } else {
961: $result .=
962: '<div class="LC_edit_problem_header_title">'.
963: &mt('Task Testing').
964: '</div>';
965: }
966:
1.315 albertel 967: my $show_all_foils_text =
968: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 969: &mt('Show All Instances')
970: : &mt('Show All Foils');
1.315 albertel 971:
1.452 bisitz 972: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
973: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 974: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 975: $show_all.= ' /> '.$show_all_foils_text
976: .'</label></span>';
1.406 albertel 977:
978:
1.384 albertel 979:
1.406 albertel 980: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 981: if (!$Apache::lonhomework::parsing_a_task) {
982: $result.="
1.406 albertel 983: <div class='LC_edit_problem_header_row1'>
984: <span class=\"LC_nobreak\">
1.405 albertel 985: ".&mt("Problem Status:")."
1.235 albertel 986: <select name='problemstate'>
1.270 albertel 987: <option value=''></option>
1.235 albertel 988: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
989: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
990: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
991: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
992: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
993: </select>
1.406 albertel 994: </span>
995: <span class=\"LC_nobreak\">
1.405 albertel 996: ".&mt("Problem Type:")."
1.235 albertel 997: <select name='problemtype'>
1.270 albertel 998: <option value=''></option>
1.509 bisitz 999: ".&option('exam' ,'problemtype').&mt("Bubblesheet Exam Problem")."</option>
1.428 raeburn 1000: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 1001: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 1002: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
1003: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
1004: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 1005: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 1006: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 1007: </select>
1.406 albertel 1008: </span>
1009: $show_all
1010: </div>
1011: <div class='LC_edit_problem_header_row2'>
1012: <span class=\"LC_nobreak\">
1.405 albertel 1013: ".&mt("Feedback Mode:")."
1.235 albertel 1014: <select name='problemstatus'>
1015: <option value=''></option>
1.242 albertel 1016: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.517 bisitz 1017: ".&option('no', 'problemstatus').&mt("Don't Show Incorrect/Correct Feedback")."</option>
1.405 albertel 1018: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 1019: </select>
1.406 albertel 1020: </span>
1021: ";
1022:
1.376 albertel 1023: } elsif ($Apache::lonhomework::parsing_a_task) {
1024: $result.="
1.406 albertel 1025: <div class='LC_edit_problem_header_row1'>
1026: <span class=\"LC_nobreak\">
1.405 albertel 1027: ".&mt("Problem Status:")."
1.376 albertel 1028: <select name='problemstate'>
1029: <option value=''></option>
1030: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
1031: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
1032: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
1033: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
1034: </select>
1.406 albertel 1035: </span>
1036: $show_all
1037: ";
1038: }
1039: $result.='
1040: <span class="LC_nobreak">
1041: '.&mt('Apply style file: ').'
1042: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
1043: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
1044: </span>
1.422 www 1045: </div>
1046: <div class="LC_edit_problem_header_row1">'.
1047: &Apache::lonxml::renderingoptions().'
1.406 albertel 1048: </div>
1049: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
1050: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
1051: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
1052: </div>
1.453 bisitz 1053: <hr />
1.406 albertel 1054: <div class="LC_edit_problem_header_randomize_row">
1055: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
1056: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 1057: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 1058: $rndseed.'"
1059: onchange="javascript:document.lonhomework.changerandseed.click()" />';
1060:
1061: if (!$Apache::lonhomework::parsing_a_task) {
1062: my $numtoanalyze=$env{'form.numtoanalyze'};
1063: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 1064: $result .= '<span class="LC_nobreak">'.
1065: &mt('[_1] for [_2] versions.',
1.416 raeburn 1066: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 1067: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
1068: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 1069: $numtoanalyze.'" size="5" />').
1070: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
1071: '</span>';
1072:
1.313 albertel 1073: }
1.406 albertel 1074:
1075: $result.='
1076: </div>
1.453 bisitz 1077: <hr />
1.447 bisitz 1078: <div>';
1.416 raeburn 1079: $result.='<input type="hidden" name="problemmode" value="view" />';
1080: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
1081: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
1082: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
1083: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 1084: $result.='
1085: </div>
1.453 bisitz 1086: <hr />
1.409 albertel 1087: '.&Apache::lonxml::message_location().'
1.406 albertel 1088: </div>';
1.159 albertel 1089: return $result;
1.48 albertel 1090: }
1091:
1.65 albertel 1092: sub initialize_storage {
1.357 albertel 1093: my ($given_symb) = @_;
1.353 albertel 1094: undef(%Apache::lonhomework::results);
1095: undef(%Apache::lonhomework::history);
1.357 albertel 1096: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1097: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 1098:
1099: # anonymous users (CODEd exams) have no data
1100: if ($name eq 'anonymous'
1101: && !defined($domain)) {
1102: return;
1103: }
1104:
1.333 albertel 1105: if ($env{'request.state'} eq 'construct'
1106: || $symb eq ''
1107: || $Apache::lonhomework::type eq 'practice') {
1108:
1109: my $namespace = $symb || $env{'request.uri'};
1110: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 1111: ($env{'form.resetdata'} eq &mt('New Problem Variation')
1112: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 1113: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1114: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
1115: &Apache::lonxml::debug("Attempt reset");
1116: }
1.159 albertel 1117: %Apache::lonhomework::history=
1.333 albertel 1118: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.526 raeburn 1119: my ($temp)=keys(%Apache::lonhomework::history) ;
1.159 albertel 1120: &Apache::lonxml::debug("Return message of $temp");
1121: } else {
1122: %Apache::lonhomework::history=
1123: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1124: }
1.353 albertel 1125:
1.159 albertel 1126: #ignore error conditions
1.526 raeburn 1127: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1128: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 1129: }
1130:
1.435 jms 1131: =pod
1132:
1133: =item finalize_storage()
1134:
1.524 raeburn 1135: Stores away the result hash to a student's environment;
1.523 raeburn 1136: checks form.grade_ for specific values, otherwise stores
1137: to the running user's environment.
1.524 raeburn 1138:
1139: &check_correctness_changes() is called in two circumstances
1140: in which the results hash is to be stored permanently, for
1141: grading triggered by a student's submission, where feedback on
1142: correctness is to be provided to the student.
1143:
1144: 1. Immediately prior to storing the results hash
1145:
1146: To handle the case where a student's submission (and award) were
1147: stored after history was retrieved in &initialize_storage(), e.g.,
1148: if a student submitted answers in quick succession (e.g., from
1149: multiple tabs). &Apache::inputtags::hidealldata() is called for
1150: any parts with out-of-order storage (i.e., correct then incorrect,
1151: where awarded >= 1 when correct).
1152:
1153: 2. Immediately after storing the results hash
1154:
1155: To handle the case where lond on the student's homeserver returns
1156: delay:N -- where N is the number of transactions between the last
1157: retrieved in &initialize_storage() and the last stored immediately
1158: before permanent storage of the current transaction via
1159: lond::store_handler(). &Apache::grades::makehidden() is called
1160: for any parts with out-of-order storage (i.e., correct then incorrect,
1161: where awarded >= 1 when correct).
1162:
1163: Will call &store_aggregates() to increment totals for attempts,
1164: students, and corrects, if running user has student role.
1165:
1.435 jms 1166: =cut
1167:
1168:
1.65 albertel 1169: sub finalize_storage {
1.357 albertel 1170: my ($given_symb) = @_;
1.159 albertel 1171: my $result;
1.289 albertel 1172: if (%Apache::lonhomework::results) {
1.323 albertel 1173: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
1174: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 1175: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1176: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 1177: if ($env{'request.state'} eq 'construct'
1178: || $symb eq ''
1179: || $Apache::lonhomework::type eq 'practice') {
1180: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 1181: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 1182: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 1183: $namespace,'',$domain,$name);
1.159 albertel 1184: &Apache::lonxml::debug('Construct Store return message:'.$result);
1185: } else {
1.524 raeburn 1186: my ($laststore,$checkedparts,@parts,%postcorrect);
1187: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1188: (!$Apache::lonhomework::scantronmode) && (!defined($env{'form.grade_symb'})) &&
1189: (!defined($env{'form.grade_courseid'}))) {
1190: if ($Apache::lonhomework::history{'version'}) {
1191: $laststore = $Apache::lonhomework::history{'version'}.'='.
1192: $Apache::lonhomework::history{'timestamp'};
1193: } else {
1194: $laststore = '0=0';
1195: }
1196: my %record = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1197: if ($record{'version'}) {
1198: my ($newversion,$oldversion,$oldtimestamp);
1199: if ($Apache::lonhomework::history{'version'}) {
1200: $oldversion = $Apache::lonhomework::history{'version'};
1201: $oldtimestamp = $Apache::lonhomework::history{'timestamp'};
1202: } else {
1203: $oldversion = 0;
1204: $oldtimestamp = 0;
1205: }
1206: if ($record{'version'} > $oldversion) {
1207: if ($record{'timestamp'} >= $oldtimestamp) {
1208: $laststore = $record{'version'}.'='.$record{'timestamp'};
1209: $newversion = $record{'version'} + 1;
1210: $checkedparts = 1;
1211: foreach my $key (keys(%Apache::lonhomework::results)) {
1212: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1213: my $part = $1;
1214: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1215: push(@parts,$part);
1216: }
1217: }
1218: }
1219: if (@parts) {
1220: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1221: \%record,\@parts,$newversion,
1222: $oldversion);
1223: if (@parts_to_hide) {
1224: foreach my $part (@parts_to_hide) {
1225: $postcorrect{$part} = 1;
1226: &Apache::inputtags::hidealldata($part);
1227: }
1228: }
1229: }
1230: }
1231: }
1232: }
1233: }
1.159 albertel 1234: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
1.524 raeburn 1235: $symb,$courseid,$domain,$name,$laststore);
1236: if ($result =~ /^delay\:(\d+)$/) {
1237: my $numtrans = $1;
1238: my ($oldversion) = split(/=/,$laststore);
1239: if ($numtrans) {
1240: my $newversion = $oldversion + 1 + $numtrans;
1241: my @possparts;
1242: if ($checkedparts) {
1243: foreach my $part (@parts) {
1244: unless ($postcorrect{$part}) {
1245: push(@possparts,$part);
1246: }
1247: }
1248: } else {
1249: foreach my $key (keys(%Apache::lonhomework::results)) {
1250: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1251: my $part = $1;
1252: unless ($postcorrect{$part}) {
1253: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1254: push(@possparts,$part);
1255: }
1256: }
1257: }
1258: }
1259: }
1260: if (@possparts) {
1261: my %newrecord = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1262: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1263: \%newrecord,\@possparts,$newversion,
1264: $oldversion);
1265: if (@parts_to_hide) {
1266: my $partslist = join(',',@parts_to_hide);
1267: &Apache::grades::makehidden($newversion,$partslist,\%newrecord,$symb,$domain,$name,1);
1268: }
1269: }
1270: }
1271: }
1.159 albertel 1272: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 1273: &store_aggregates($symb,$courseid);
1.159 albertel 1274: }
1.323 albertel 1275: } else {
1276: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 1277: }
1.159 albertel 1278: return $result;
1.65 albertel 1279: }
1280:
1.435 jms 1281: =pod
1282:
1.524 raeburn 1283: =item check_correctness_changes()
1284:
1285: For all parts for which current results contain a solved status
1286: of "incorrect_attempted", check if there was a transaction in which
1287: solved was set to "correct_by_student" in the time since the last
1288: transaction (retrieved when &initialize_storage() was called i.e.,
1289: when &start_problem() was called), unless:
1290: (a) questiontype parameter is set to survey or anonymous survey (+/- credit)
1291: (b) problemstatus is set to no or no_feedback_ever
1292: If such a transaction exists, and did not occur after "reset status"
1293: by a user with grading privileges, then the current transaction is an
1294: example of an out-of-order transaction (i.e., incorrect occurring after
1295: correct). Accordingly, the current transaction should be hidden.
1296:
1297: =cut
1298:
1299:
1300: sub check_correctness_changes {
1301: my ($symb,$courseid,$domain,$name,$record,$parts,$newversion,$oldversion) = @_;
1302: my @parts_to_hide;
1303: unless ((ref($record) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
1304: return @parts_to_hide;
1305: }
1306: if (@{$parts}) {
1307: my $usec;
1308: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1309: ($env{'request.course.id'} eq $courseid)) {
1310: $usec = $env{'request.course.sec'};
1311: } else {
1312: $usec = &Apache::lonnet::getsection($domain,$name,$courseid);
1313: }
1314: foreach my $id (@{$parts}) {
1315: next if (($Apache::lonhomework::results{'resource.'.$id.'.type'} =~ /survey/) ||
1316: (&Apache::lonnet::EXT("resource.$id.problemstatus",$symb,
1317: $domain,$name,$usec,undef,$courseid) =~ /^no/));
1318: my $reset;
1319: for (my $i=$newversion-1; $i>=$oldversion; $i--) {
1320: if (($record->{$i.':resource.'.$id.'.regrader'}) &&
1321: ($record->{$i.':resource.'.$id.'.tries'} eq '') &&
1322: ($record->{$i.':resource.'.$id.'.award'} eq '')) {
1323: $reset = 1;
1324: } elsif (($record->{$i.":resource.$id.solved"} eq 'correct_by_student') &&
1325: ($record->{$i.":resource.$id.awarded"} >= 1)) {
1326: unless ($reset) {
1327: push(@parts_to_hide,$id);
1328: last;
1329: }
1330: }
1331: }
1332: }
1333: }
1334: return @parts_to_hide;
1335: }
1336:
1337: =pod
1338:
1.435 jms 1339: item store_aggregates()
1340:
1341: Sends hash of values to be incremented in nohist_resourcetracker.db
1342: for the course. Increments total number of attempts, unique students
1343: and corrects for each part for an instance of a problem, as appropriate.
1344:
1345: =cut
1346:
1.285 raeburn 1347: sub store_aggregates {
1348: my ($symb,$courseid) = @_;
1.479 raeburn 1349: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 1350: my @parts;
1.288 albertel 1351: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
1352: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 1353: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 1354: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 1355: push(@parts, $1);
1.285 raeburn 1356: }
1357: }
1.286 albertel 1358: foreach my $part (@parts) {
1.470 raeburn 1359: if ($env{'request.role'} =~/^st/) {
1360: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
1361: eq 'APPROX_ANS' ||
1362: $Apache::lonhomework::results{'resource.'.$part.'.award'}
1363: eq 'EXACT_ANS') {
1364: $aggregate{$symb."\0".$part."\0correct"} = 1;
1365: }
1366: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1367: $aggregate{$symb."\0".$part."\0users"} = 1;
1368: } else {
1369: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1370: if ($last_reset) {
1371: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1372: $aggregate{$symb."\0".$part."\0users"} = 1;
1373: }
1374: }
1375: }
1376: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 1377: }
1.470 raeburn 1378: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 1379: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
1380: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
1381: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
1382: $randtrycounter{$symb."\0".$part} = 1;
1383: } else {
1384: $anoncounter{$symb."\0".$part} = 1;
1385: }
1.470 raeburn 1386: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
1387: if ($needsrelease) {
1388: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
1389: if ($curr_required eq '') {
1.471 raeburn 1390: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1391: } else {
1392: my ($currmajor,$currminor) = split(/\./,$curr_required);
1393: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
1394: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 1395: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1396: }
1.292 raeburn 1397: }
1398: }
1.285 raeburn 1399: }
1400: }
1.526 raeburn 1401: if (keys(%aggregate) > 0) {
1.289 albertel 1402: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 1403: $cdomain,$cname);
1404: }
1.472 raeburn 1405: if (keys(%anoncounter) > 0) {
1.481 raeburn 1406: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
1407: $cdomain,$cname);
1.472 raeburn 1408: }
1.479 raeburn 1409: if (keys(%randtrycounter) > 0) {
1.481 raeburn 1410: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
1411: $cdomain,$cname);
1.479 raeburn 1412: }
1.292 raeburn 1413: }
1.289 albertel 1414:
1.65 albertel 1415: sub checkout_msg {
1.211 albertel 1416: my %lt=&Apache::lonlocal::texthash(
1417: 'resource'=>'The resource needs to be checked out',
1418: '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.',
1419: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
1.509 bisitz 1420: 'checkout'=>'Check out Bubblesheet Exam for Viewing',
1421: 'checkout?'=>'Check out Bubblesheet Exam?');
1.352 albertel 1422: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 1423: return (<<ENDCHECKOUT);
1.211 albertel 1424: <h2>$lt{'resource'}</h2>
1425: <p>$lt{'id_expln'}</p>
1.449 bisitz 1426: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 1427: <form name="checkout" method="post" action="$uri">
1.91 albertel 1428: <input type="hidden" name="doescheckout" value="yes" />
1.514 bisitz 1429: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onclick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 1430: </form>
1431: ENDCHECKOUT
1432: }
1433:
1.252 albertel 1434: sub firstaccess_msg {
1.253 albertel 1435: my ($time,$symb)=@_;
1.414 albertel 1436: my $result;
1437: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1438: if ($interval[1] eq 'map') {
1439: my ($map)=&Apache::lonnet::decode_symb($symb);
1440: my $foldertitle=&Apache::lonnet::gettitle($map);
1441:
1442: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 1443: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
1444: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1445: ,$foldertitle,$time)."</p>";
1.414 albertel 1446: } elsif ($interval[1] eq 'course') {
1447: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 1448: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 1449: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 1450: ,$course,$time)."</p>";
1.414 albertel 1451: } else {
1452: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1453: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1454: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1455: ,$title,$time)."</p>";
1.414 albertel 1456: }
1.352 albertel 1457: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1458: my $buttontext = &mt('Show Resource');
1459: my $timertext = &mt('Start Timer?');
1.414 albertel 1460: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1461: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1462: <input type="hidden" name="markaccess" value="yes" />
1.514 bisitz 1463: <input type="button" name="accessbutton" value="$buttontext" onclick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1464: </form>
1465: ENDCHECKOUT
1.414 albertel 1466: return $result;
1.252 albertel 1467: }
1468:
1.204 albertel 1469: sub init_problem_globals {
1470: my ($type)=@_;
1471: #initialize globals
1.308 foxr 1472: # For problems, we start out in part 0 (outside a <part> tag).
1473: # and part 0 is used to describe the main body of the <problem>
1474: #
1.204 albertel 1475: if ($type eq 'problem') {
1476: $Apache::inputtags::part='0';
1477: @Apache::inputtags::partlist=('0');
1.405 albertel 1478: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1479: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1480:
1.266 albertel 1481: } elsif ($type eq 'library') {
1.204 albertel 1482: $Apache::inputtags::part='';
1483: @Apache::inputtags::partlist=();
1.405 albertel 1484: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1485: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1486:
1.304 albertel 1487: } elsif ($type eq 'Task') {
1488: $Apache::inputtags::part='0';
1489: @Apache::inputtags::partlist=('0');
1.405 albertel 1490: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1491: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1492: }
1.477 www 1493: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1494: @Apache::inputtags::responselist = ();
1495: @Apache::inputtags::importlist = ();
1496: @Apache::inputtags::previous=();
1497: @Apache::inputtags::previous_version=();
1498: $Apache::structuretags::printanswer='No';
1499: @Apache::structuretags::whileconds=();
1500: @Apache::structuretags::whilebody=();
1501: @Apache::structuretags::whileline=();
1502: $Apache::lonhomework::scantronmode=0;
1503: undef($Apache::lonhomework::name);
1.358 albertel 1504: undef($Apache::lonhomework::default_type);
1505: undef($Apache::lonhomework::type);
1.204 albertel 1506: }
1507:
1508: sub reset_problem_globals {
1509: my ($type)=@_;
1510: undef(%Apache::lonhomework::history);
1511: undef(%Apache::lonhomework::results);
1512: undef($Apache::inputtags::part);
1.498 raeburn 1513: if ($type eq 'Task') {
1514: undef($Apache::inputtags::slot_name);
1515: }
1.208 albertel 1516: #don't undef this, lonhomework.pm takes care of this, we use this to
1517: #detect if we try to do 2 problems in one file
1518: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1519: undef($Apache::lonhomework::name);
1.358 albertel 1520: undef($Apache::lonhomework::default_type);
1521: undef($Apache::lonhomework::type);
1522: undef($Apache::lonhomework::scantronmode);
1523: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1524: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1525: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1526: }
1527:
1.241 albertel 1528: sub set_problem_state {
1.240 albertel 1529: my ($part)=@_;
1.284 albertel 1530: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1531: $Apache::lonhomework::history{"resource.$part.solved"}=
1532: 'correct_by_student';
1533: }
1534: }
1535:
1.241 albertel 1536: sub get_problem_status {
1537: my ($part)=@_;
1.267 albertel 1538: my $problem_status;
1.284 albertel 1539: if ($env{'request.state'} eq 'construct' &&
1540: defined($env{'form.problemstatus'})) {
1541: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1542: } else {
1543: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1544: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1545: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1546: }
1547: return $problem_status;
1548: }
1549:
1.9 albertel 1550: sub start_problem {
1.326 albertel 1551: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1552:
1.311 foxr 1553: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1554: if (!$Apache::lonxml::metamode) {
1555: &Apache::lonxml::startredirection();
1556: }
1.311 foxr 1557:
1.308 foxr 1558: # Problems don't nest and we don't allow more than one <problem> in
1559: # a .problem file.
1560: #
1.184 albertel 1561: if ( $Apache::inputtags::part ne '' ||
1562: $Apache::lonhomework::parsing_a_problem) {
1563: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1564: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1565: return '';
1566: }
1.184 albertel 1567:
1568: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1569: &init_problem_globals('problem');
1.166 albertel 1570:
1.284 albertel 1571: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1572: $Apache::lonhomework::scantronmode=1;
1573: }
1.161 albertel 1574:
1.159 albertel 1575: if ($target ne 'analyze') {
1.415 raeburn 1576: my $type = &Apache::lonnet::EXT('resource.0.type');
1577: $Apache::lonhomework::type=$type;
1.284 albertel 1578: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1579: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1580: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1581: }
1.332 albertel 1582: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1583: }
1.164 albertel 1584: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1585: my $uri=$env{'request.uri'};
1.159 albertel 1586: if ($uri=~/\.(\w+)$/) {
1587: $Apache::lonhomework::type=$1;
1588: &Apache::lonxml::debug("Using type of $1");
1589: } else {
1590: $Apache::lonhomework::type='problem';
1591: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1592: }
1.87 albertel 1593: }
1.301 albertel 1594: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1595:
1.363 albertel 1596: &initialize_storage();
1.389 albertel 1597: if ($target ne 'analyze'
1598: && $env{'request.state'} eq 'construct') {
1599: &set_problem_state('0');
1600: }
1601:
1.366 albertel 1602: if ($target eq 'web') {
1603: &Apache::lonxml::debug(" grading history ");
1604: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1605: }
1.363 albertel 1606:
1.159 albertel 1607: #added vars to the scripting enviroment
1.213 albertel 1608: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1609: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1610: &Apache::run::run($expression,$safeeval);
1.159 albertel 1611: my $status;
1612: my $accessmsg;
1.508 raeburn 1613: my $resource_due;
1.159 albertel 1614:
1.343 albertel 1615: my $name= &get_resource_name($parstack,$safeeval);
1.506 raeburn 1616: my ($result,$form_tag_start,$slot_name,$slot);
1617:
1618: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1619: $target eq 'tex') {
1620: if ($env{'form.markaccess'}) {
1621: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1.519 raeburn 1622: &Apache::lonnet::set_first_access($interval[1],$interval[0]);
1.506 raeburn 1623: }
1624:
1625: ($status,$accessmsg,$slot_name,$slot) =
1626: &Apache::lonhomework::check_slot_access('0','problem');
1627: push (@Apache::inputtags::status,$status);
1628: }
1629:
1.354 albertel 1630: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1631: || $target eq 'edit') {
1.350 albertel 1632: ($result,$form_tag_start) =
1633: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1634: $name);
1635: }
1636:
1.284 albertel 1637: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1638:
1.479 raeburn 1639: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1640: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1641: $target eq 'tex') {
1.479 raeburn 1642:
1.159 albertel 1643: #handle rand seed in construction space
1.479 raeburn 1644: my $rndseed=&setup_rndseed($safeeval,$target);
1.367 albertel 1645: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 1646:
1.333 albertel 1647: if ($env{'request.state'} ne "construct" &&
1648: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1649: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1650: $rndseed.'" />'.
1651: '<input type="submit" name="resetdata"
1652: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1653: if (exists($env{'form.username'})) {
1654: $form_tag_start.=
1.164 albertel 1655: '<input type="hidden" name="username"
1.284 albertel 1656: value="'.$env{'form.username'}.'" />';
1.334 albertel 1657: }
1.462 raeburn 1658: if ($env{'request.role.adv'}) {
1659: $form_tag_start.= ' <label class="LC_nobreak">'
1660: .'<input type="checkbox" name="showallfoils"';
1661: if (defined($env{'form.showallfoils'})) {
1662: $form_tag_start.=' checked="checked"';
1663: }
1664: $form_tag_start.= ' /> '
1665: .&mt('Show All Foils')
1666: .'</label>';
1667: }
1.417 www 1668: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1669: $form_tag_start.=&practice_problem_header();
1.417 www 1670: }
1.462 raeburn 1671: $form_tag_start.='<hr />';
1.479 raeburn 1672: } elsif (($env{'request.state'} ne "construct") &&
1673: ($Apache::lonhomework::type eq 'randomizetry') &&
1674: ($status eq 'CAN_ANSWER')) {
1675: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1676: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1677: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1678: }
1.324 albertel 1679:
1.159 albertel 1680: my $expression='$external::datestatus="'.$status.'";';
1681: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1682: &Apache::run::run($expression,$safeeval);
1683: &Apache::lonxml::debug("Got $status");
1.324 albertel 1684:
1.159 albertel 1685: if (( $status eq 'CLOSED' ) ||
1686: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1687: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1688: ( $status eq 'BANNED') ||
1.216 albertel 1689: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1690: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1691: ( $status eq 'NOTRESERVABLE') ||
1692: ( $status eq 'RESERVABLE') ||
1693: ( $status eq 'RESERVABLE_LATER') ||
1.216 albertel 1694: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1695: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1696: $style);
1.159 albertel 1697: if ( $target eq "web" ) {
1.343 albertel 1698: my $msg;
1.159 albertel 1699: if ($status eq 'UNAVAILABLE') {
1.504 golterma 1700: $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1.441 raeburn 1701: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.504 golterma 1702: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1.499 raeburn 1703: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1704: ($status eq 'NOTRESERVABLE')) {
1.504 golterma 1705: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1.253 albertel 1706: } elsif ($status ne 'NOT_YET_VIEWED') {
1.504 golterma 1707: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1.499 raeburn 1708: }
1.216 albertel 1709: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1710: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1711: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1712: $msg.=&checkout_msg();
1.252 albertel 1713: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1714: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1715: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1716: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.499 raeburn 1717: } elsif ($status eq 'RESERVABLE') {
1718: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1719: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1720: '<br />'.
1721: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1722: } elsif ($status eq 'RESERVABLE_LATER') {
1723: $msg.=&mt('Window to make a reservation will open [_1].',
1724: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1725: } elsif ($status eq 'NOTRESERVABLE') {
1726: $msg.=&mt('Not available to make a reservation.');
1.159 albertel 1727: }
1728: $result.=$msg.'<br />';
1729: } elsif ($target eq 'tex') {
1.332 albertel 1730: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1731: : '\begin{minipage}{\textwidth}';
1.443 foxr 1732: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1733: $startminipage.'\vskip 0 mm';
1.159 albertel 1734: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1735: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1736: } else {
1.211 albertel 1737: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1738: }
1739: }
1.324 albertel 1740: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1741: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1742: $style);
1.324 albertel 1743: if ($target eq 'web') {
1.375 albertel 1744: $result .=
1745: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1746: } elsif ($target eq 'grade') {
1747: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1748: 'problem');
1749: }
1.159 albertel 1750: } elsif ($target eq 'web') {
1.508 raeburn 1751: if ($status eq 'CAN_ANSWER') {
1752: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1753: if ($slot_name ne '') {
1754: my $checked_in =
1755: $Apache::lonhomework::history{'resource.0.checkedin'};
1756: if ($checked_in eq '') {
1757: # unproctored slot access, self checkin
1758: &Apache::bridgetask::check_in('problem',undef,undef,
1759: $slot_name);
1760: $checked_in =
1761: $Apache::lonhomework::results{"resource.0.checkedin"};
1762: }
1763: if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1764: if ($slot->{'starttime'} < time()) {
1765: if (!$resource_due) {
1766: $resource_due = $slot->{'endtime'};
1767: } elsif ($slot->{'endtime'} < $resource_due) {
1768: $resource_due = $slot->{'endtime'};
1769: }
1770: }
1771: }
1772: }
1773: if ($resource_due) {
1774: my $time_left = $resource_due - time();
1775: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1776: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1777: }
1778: }
1779: }
1.368 albertel 1780: $result.="\n $form_tag_start \t".
1.227 albertel 1781: '<input type="hidden" name="submitted" value="yes" />';
1782: # create a page header and exit
1.284 albertel 1783: if ($env{'request.state'} eq "construct") {
1784: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1785: if ($Apache::lonhomework::type eq 'practice') {
1786: $result.= '<input type="submit" name="resetdata" '.
1787: 'value="'.&mt('New Problem Variation').'" />'.
1788: &practice_problem_header().'<hr />';
1789: }
1.227 albertel 1790: }
1791: # if we are viewing someone else preserve that info
1.284 albertel 1792: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1793: foreach my $field ('symb','courseid','domain','username') {
1794: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1795: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1796: }
1.479 raeburn 1797: foreach my $field ('trial','questiontype') {
1798: if ($env{"form.grade_$field"} ne '') {
1799: $result .= '<input type="hidden" name="grade_'.$field.
1800: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1801: }
1802: }
1.159 albertel 1803: }
1.490 raeburn 1804: if ($env{'form.grade_imsexport'}) {
1805: $result = '';
1806: }
1.159 albertel 1807: } elsif ($target eq 'tex') {
1.319 foxr 1808: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 1809: $result .= &select_metadata_hyphenation();
1810:
1.319 foxr 1811:
1.99 sakharuk 1812: }
1.159 albertel 1813: } elsif ($target eq 'edit') {
1.343 albertel 1814: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1815: $Apache::lonxml::warnings_error_header=
1816: &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 1817: my $temp=&Apache::edit::insertlist($target,$token);
1818: $result.=$temp;
1819: } elsif ($target eq 'modified') {
1820: $result=$token->[4];
1821: } else {
1822: # page_start returned a starting result, delete it if we don't need it
1823: $result = '';
1.99 sakharuk 1824: }
1.159 albertel 1825: return $result;
1.9 albertel 1826: }
1827:
1828: sub end_problem {
1.159 albertel 1829: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1830: my $result;
1.310 foxr 1831:
1.321 albertel 1832: if (!$Apache::lonxml::metamode) {
1833: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1834: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1835: }
1.319 foxr 1836:
1837: if ($target eq 'tex') {
1.321 albertel 1838: # Figure out the front matter and replace the
1839: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1840: # this in end_problem because whether or not we display due
1841: # dates depends on whether due dates have already been
1842: # displayed in the problem parts.
1843:
1.319 foxr 1844: my $frontmatter = '';
1845: my $startminipage = '';
1846: if (not $env{'form.problem_split'}=~/yes/) {
1847: $startminipage = '\begin{minipage}{\textwidth}';
1848: }
1849: my $id = $Apache::inputtags::part;
1850: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1851: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.526 raeburn 1852: my @packages = split(/,/,$packages);
1.319 foxr 1853: my $allow_print_points = 0;
1854: foreach my $partial_key (@packages) {
1855: if ($partial_key=~m/^part_0$/) {
1856: $allow_print_points=1;
1857: }
1858: }
1859: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1860: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1861: if (lc($env{'course.'.$env{'request.course.id'}.
1862: '.disableexampointprint'}) eq 'yes') {
1863: $allow_print_points=0;
1864: }
1865: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1866: 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 1867: &clear_required_languages();
1.319 foxr 1868: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1869: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1870:
1871: # Figure out what the due date is and if we need to print
1872: # it in the problem header. We have been logging the
1873: # last due date written to file.
1874:
1875: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1876: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1877: my $duedate_text = &mt('Due date: [_1]'
1878: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1879: my $temp_file;
1880: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1881:
1882: # Figure out what the last printed due date is or set it
1883: # to the epoch if no duedates have been printed.
1884:
1885: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1886: if (-e $filename) {
1887: $temp_file = Apache::File->new($filename);
1888: my @due_file = <$temp_file>;
1889: $due_file_content = $due_file[$#due_file];
1890: chomp $due_file_content;
1891: }
1892:
1893: # We display the due date iff it is not the same as the last
1894: # duedate in problem header ($due_file_content), and
1895: # none of our parts displayed a duedate.
1896: #
1897: my $parts_with_displayduedate;
1898: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1899: $parts_with_displayduedate =
1900: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1901: } else {
1902: $parts_with_displayduedate = 0;
1903: }
1904: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1905: $temp_file = Apache::File->new('>'.$filename);
1906: print $temp_file "$duetime\n";
1907: if (not $env{'request.symb'} =~ m/\.page_/) {
1908: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1909: $frontmatter .= $begin_doc.
1.448 bisitz 1910: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1911: } else {
1912: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1913: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1914: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1915: }
1.319 foxr 1916: }
1917: } else {
1.448 bisitz 1918: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1919: }
1920: } else {
1921: if (not $env{'request.symb'} =~ m/\.page_/) {
1922: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1923: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1924: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1925: }
1.319 foxr 1926: } else {
1.381 albertel 1927: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1928: }
1929: }
1930: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1931: }
1932:
1.159 albertel 1933: my $status=$Apache::inputtags::status['-1'];
1934: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1935: $target eq 'tex') {
1.249 albertel 1936: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1937: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1938: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1939: &Apache::inputtags::grade;
1.324 albertel 1940: } elsif ($status eq 'NEEDS_CHECKIN') {
1941: # no need to grade, and don't want to hide data
1.249 albertel 1942: } else {
1943: # move any submission data to .hidden
1944: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1945: }
1.159 albertel 1946: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1947: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1948: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1949: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1950: # if part is zero, no <part>s existed, so we need show the current
1951: # grading status
1952: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1953: $result.= $gradestatus;
1954: }
1955: if (
1.284 albertel 1956: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1957: ($target eq 'answer') || ($target eq 'tex')
1958: ) {
1.490 raeburn 1959: if (($target ne 'tex') &&
1960: ($env{'form.answer_output_mode'} ne 'tex') &&
1961: (!$env{'form.grade_imsexport'})) {
1.254 www 1962: $result.="</form>";
1.159 albertel 1963: }
1964: if ($target eq 'web') {
1.507 raeburn 1965: #
1966: # Closing </body></html> not added by end_page().
1967: # Added separately at end of this routine, after added
1968: # <script></script> so document will be valid xhtml.
1969: #
1970: $result.= &Apache::loncommon::end_page({'discussion' => 1,
1971: 'notbody' => 1});
1.159 albertel 1972: } elsif ($target eq 'tex') {
1.178 sakharuk 1973: my $endminipage = '';
1.284 albertel 1974: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1975: $endminipage = '\end{minipage}';
1976: }
1.284 albertel 1977: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1978: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1979: } else {
1.262 sakharuk 1980: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1981: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1982: $result .= $endminipage.'\end{document} ';
1983: } else {
1.382 albertel 1984: $result .= $endminipage;
1.262 sakharuk 1985: }
1.159 albertel 1986: }
1987: }
1988: }
1.476 www 1989: if ($target eq 'web') {
1990: $result.=&Apache::functionplotresponse::init_script();
1991: }
1.159 albertel 1992: if ($target eq 'grade') {
1993: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1994: &finalize_storage();
1995: }
1.284 albertel 1996: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1997: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1998: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1999: # normally we get it from above, but in CSTR
1.172 albertel 2000: # we always show answer mode too.
1.159 albertel 2001: }
2002: } elsif ($target eq 'meta') {
2003: if ($Apache::inputtags::part eq '0') {
1.179 albertel 2004: @Apache::inputtags::response=();
1.159 albertel 2005: $result=&Apache::response::mandatory_part_meta;
2006: }
1.215 albertel 2007: $result.=&Apache::response::meta_part_order();
1.258 albertel 2008: $result.=&Apache::response::meta_response_order();
1.159 albertel 2009: } elsif ($target eq 'edit') {
2010: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 2011: $result .= &problem_edit_footer();
1.320 albertel 2012: } elsif ($target eq 'modified') {
2013: $result .= $token->[2];
1.159 albertel 2014: }
1.155 albertel 2015:
1.284 albertel 2016: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 2017: &Apache::inputtags::check_for_duplicate_ids();
2018: }
1.204 albertel 2019:
2020: &reset_problem_globals('problem');
1.159 albertel 2021:
1.502 foxr 2022: #
2023: # This shouild be just above the return so that the
2024: # time put in the javascript is as late as possible in the
2025: # computation:
2026: #
2027: if ($target eq 'web') {
2028: $result .= &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 2029: #
2030: # Closing tags delayed so any <script></script> tags
2031: # not in head can appear inside body, for valid xhtml.
2032: #
2033: $result .= "</body>\n</html>";
1.502 foxr 2034: }
1.159 albertel 2035: return $result;
1.48 albertel 2036: }
2037:
1.108 albertel 2038:
1.48 albertel 2039: sub start_library {
1.159 albertel 2040: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 2041: my ($result,$form_tag_start);
1.371 albertel 2042: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 2043: &init_problem_globals('library');
2044: $Apache::lonhomework::type='problem';
2045: }
1.159 albertel 2046: if ($target eq 'edit') {
1.343 albertel 2047: ($result,$form_tag_start)=
2048: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2049: 'Edit');
2050: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 2051: my $temp=&Apache::edit::insertlist($target,$token);
2052: $result.=$temp;
2053: } elsif ($target eq 'modified') {
2054: $result=$token->[4];
1.340 albertel 2055: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 2056: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 2057: && $env{'request.state'} eq "construct" ) {
1.159 albertel 2058: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 2059: ($result,$form_tag_start)=
2060: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2061: $name);
1.479 raeburn 2062: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 2063: $result.=" \n $form_tag_start".
1.159 albertel 2064: '<input type="hidden" name="submitted" value="yes" />';
2065: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 2066: if ($Apache::lonhomework::type eq 'practice') {
2067: $result.= '<input type="submit" name="resetdata" '.
2068: 'value="'.&mt('New Problem Variation').'" />'.
2069: &practice_problem_header().'<hr />';
2070: }
1.159 albertel 2071: }
2072: return $result;
1.48 albertel 2073: }
2074:
2075: sub end_library {
1.159 albertel 2076: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2077: my $result='';
2078: if ($target eq 'edit') {
2079: $result=&problem_edit_footer();
1.371 albertel 2080: } elsif ($target eq 'web'
2081: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
2082: && $env{'request.state'} eq "construct") {
1.349 albertel 2083: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 2084: }
1.371 albertel 2085: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
2086: &reset_problem_globals('library');
2087: }
1.159 albertel 2088: return $result;
1.197 www 2089: }
2090:
2091: sub start_definetag {
1.326 albertel 2092: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 2093:
2094: my $result;
2095:
2096: my $name = $token->[2]->{'name'};
1.326 albertel 2097: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 2098: if ($target eq 'web') {
2099: if ($name=~/^\//) {
2100: $result=
2101: '<br /><table class="LC_sty_end"><tr><th>'.
2102: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2103: } else {
2104: $result=
2105: '<br /><table class="LC_sty_begin"><tr><th>'.
2106: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2107: }
2108: $skip = &HTML::Entities::encode($skip, '<>&"');
2109: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 2110: }
2111: return $result;
2112: }
2113:
2114: sub end_definetag {
2115: return '';
1.1 albertel 2116: }
2117:
2118: sub start_block {
1.201 albertel 2119: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 2120:
2121: my $result;
1.1 albertel 2122:
1.339 albertel 2123: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2124: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 2125: my $code = $token->[2]->{'condition'};
1.385 albertel 2126: if (defined($code) && $code ne '') {
1.137 albertel 2127: if (!$Apache::lonxml::default_homework_loaded) {
2128: &Apache::lonxml::default_homework_load($safeeval);
2129: }
1.131 albertel 2130: $result = &Apache::run::run($code,$safeeval);
2131: &Apache::lonxml::debug("block :$code: returned :$result:");
2132: } else {
2133: $result='1';
2134: }
2135: if ( ! $result ) {
1.201 albertel 2136: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 2137: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2138: }
2139: $result='';
2140: } elsif ($target eq 'edit') {
2141: $result .=&Apache::edit::tag_start($target,$token);
2142: $result .=&Apache::edit::text_arg('Test Condition:','condition',
2143: $token,40);
2144: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2145: } elsif ($target eq 'modified') {
2146: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2147: $safeeval,'condition');
2148: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 2149: }
1.131 albertel 2150: return $result;
1.1 albertel 2151: }
2152:
2153: sub end_block {
1.167 www 2154: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2155: my $result;
2156: if ($target eq "edit") {
2157: $result.= &Apache::edit::tag_end($target,$token,'');
2158: }
2159: return $result;
2160: }
1.500 foxr 2161: #
2162: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
2163: # ...
2164: # </languageblock>
2165: #
2166: # This declares the intent to provide content that can be rendered in the
2167: # set of languages in the include specificatino but not in the exclude
2168: # specification. If a currently preferred language is in the include list
2169: # the content in the <languageblock>...</languageblock> is rendered
2170: # If the currently preferred language is in the exclude list,
2171: # the content in the <languageblock>..></languageblock is not rendered.
2172: #
2173: # Pathalogical case handling:
2174: # - Include specified, without the preferred language but exclude specified
2175: # also without the preferred langauge results in rendering the block.
2176: # - Exclude specified without include and excluden not containing a
2177: # preferred language renders the block.
2178: # - Include and exclude both specifying the preferred language does not
2179: # render the block.
2180: # - If neither include/exclude is specified, the block gets rendered.
2181: #
2182: # This tag has no effect when target is in {edit, modified}
2183: #
1.167 www 2184: sub start_languageblock {
1.201 albertel 2185: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 2186:
1.500 foxr 2187: my $result = '';
1.167 www 2188:
1.339 albertel 2189: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2190: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 2191: my $include = $token->[2]->{'include'};
2192: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 2193: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 2194:
2195: # This should not even happen, since we should at least have the server language
2196:
2197: if (!$preferred_languages[0]) {
2198: $preferred_languages[0]='en';
2199: }
2200:
2201: # Now loop over all languages in order of preference
2202:
2203: my $render;
1.398 www 2204: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 2205:
2206: # If neither include/nor exlude is present the block is going
2207: # to get rendered.
2208:
1.399 www 2209: my $found=0;
1.500 foxr 2210: $render=1;
2211:
2212: # If include is specified, don't render the block
2213: # unless the preferred language is included in the set.
2214:
1.398 www 2215: if ($include) {
1.500 foxr 2216: $render=0;
1.398 www 2217: foreach my $included_language (split(/\,/,$include)) {
2218: if ($included_language eq $preferred_language) {
1.500 foxr 2219: $render=1;
1.399 www 2220: $found=1;
1.500 foxr 2221: last; # Only need to find the first.
1.398 www 2222: }
2223: }
2224: }
1.500 foxr 2225: # Do we have an exclude argument?
2226: # If so, and one of the languages matches a preferred language
2227: # inhibit rendering the block. Note that in the pathalogical case the
2228: # author has specified a preferred language in both the include and exclude
2229: # attribte exclude is preferred.
2230:
1.398 www 2231: if ($exclude) {
1.500 foxr 2232: $render=1;
1.398 www 2233: foreach my $excluded_language (split(/\,/,$exclude)) {
2234: if ($excluded_language eq $preferred_language) {
1.500 foxr 2235: $render=0;
1.399 www 2236: $found=1;
1.500 foxr 2237: last; # Only need to find the first.
1.398 www 2238: }
2239: }
2240: }
1.500 foxr 2241: if ($found) {
2242: last; # Done on any match of include or exclude.
2243: }
1.398 www 2244: }
1.500 foxr 2245: # If $render not true skip the entire block until </languageblock>
2246: #
2247:
2248: if ( ! $render ) {
1.201 albertel 2249: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
2250: $style);
2251: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2252: }
1.500 foxr 2253: # If $render is true, we've not skipped the contents of the <languageglock>
2254: # and the normal loncapa processing flow will render it as a matter of course.
2255:
1.167 www 2256: } elsif ($target eq 'edit') {
2257: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2258: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 2259: $token,40);
1.211 albertel 2260: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 2261: $token,40);
2262: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2263: } elsif ($target eq 'modified') {
2264: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 2265: $safeeval,'include',
2266: 'exclude');
1.167 www 2267: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2268: }
2269: return $result;
2270: }
2271:
2272: sub end_languageblock {
1.170 www 2273: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2274: my $result;
1.201 albertel 2275: if ($target eq "edit") {
1.170 www 2276: $result.= &Apache::edit::tag_end($target,$token,'');
2277: }
2278: return $result;
2279: }
1.500 foxr 2280: # languagblock specific tags:
2281: {
2282: # For chunks of a resource that has translations, this hash contains
2283: # the translations available indexed by language name.
2284: #
2285:
2286: my %available_texts;
1.170 www 2287:
1.500 foxr 2288: # <translated> starts a block of a resource that has multiple translations.
2289: # See the <lang> tag as well.
2290: # When </translated> is encountered if there is a translation for the
2291: # currently preferred language, that is rendered inthe web/tex/webgrade
2292: # targets. Otherwise, the default text is rendered.
2293: #
2294: # Note that <lang> is only registered for the duration of the
2295: # <translated>...</translated> block
2296: #
2297: # Pathalogical case handling:
2298: # - If there is no <lang> that specifies a 'default' and there is no
2299: # translation that matches a preferred language, nothing is rendered.
2300: # - Nested <translated>...</translated> might be linguistically supported by
2301: # XML due to the stack nature of tag registration(?) however the rendered
2302: # output will be incorrect because there is only one %available_texts
2303: # has and end_translated clears it.
2304: # - Material outside of a <lang>...</lang> block within the
2305: # <translated>...<translated> block won't render either e.g.:
2306: # <translated>
2307: # The following will be in your preferred langauge:
2308: # <lang which='en'>
2309: # This section in english
2310: # </lang>
2311: # <lang which='sgeiso'>
2312: # Hier es ist auf Deutsch.
2313: # </lang>
2314: # <lang which='sfriso'>
2315: # En Francais
2316: # </lang>
2317: # </translated>
2318: #
2319: # The introductory text prior to the first <lang> tag is not rendered.
2320: #
1.397 albertel 2321: sub start_translated {
2322: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2323: &Apache::lonxml::register('Apache::structuretags',('lang'));
2324: undef(%available_texts);
2325: }
2326:
2327: sub end_translated {
2328: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2329: my $result;
2330: #show the translation on viewable targets
2331: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
2332: # or non-viewable targets, if it's embedded in something that
2333: # wants the output
2334: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
2335: && &Apache::lonxml::in_redirection() ) ) {
2336: my @possibilities = keys(%available_texts);
2337: my $which =
2338: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 2339: if ($target eq 'tex') {
2340: $result = &select_hyphenation($which);
2341: }
2342: $result .= $available_texts{$which};
2343: if ($target eq 'tex') {
2344: $result .= &select_metadata_hyphenation(); # Restore original language.
2345: }
1.397 albertel 2346: }
2347: undef(%available_texts);
2348: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
2349: return $result;
2350: }
2351:
1.500 foxr 2352: # <lang [which='language-name'] [other='lang1,lang2...']>
2353: # Specifies that the block contained within it is a translation
2354: # for a specific language specified by the 'which' attribute. The
2355: # 'other' attribute can be used by itself or in conjunction with
2356: # which to specify this tag _may_ be used as a translation for some
2357: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
2358: # specifying that the block provides a translation for US (primary)
2359: # Canadian, Australian and UK Englush.
2360: #
2361: # Comment: this seems a bit silly why not just support a list of languages
2362: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
2363: #
2364: # Effect:
2365: # The material within the <lang>..</lang> block is stored in the
2366: # specified set of $available_texts hash entries, the appropriate one
2367: # is selected at </translated> time.
2368: #
2369: # Pathalogical case handling:
2370: # If a language occurs multiple times within a <translated> block,
2371: # only the last one is rendered e.g.:
2372: #
2373: # <translated>
2374: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
2375: # Red green color blindness is quite common affecting about 7.8% of
2376: # the male population, but onloy about .65% of the female population.
2377: # </lang>
2378: # Red green colour blindness is quite common affecting about 7.8% of
2379: # the male population, but onloy about .65% of the female population.
2380: # <lang which='seniso', other='senisoCA,senisoAU'>
2381: # </translated>
2382: #
2383: # renders the correct spelling of color (colour) for people who have specified
2384: # a preferred language that is one of the British Commonwealth languages
2385: # even though those are also listed as valid selections for the US english
2386: # <lang> block.
2387: #
1.397 albertel 2388: sub start_lang {
2389: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2390: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2391: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2392: &Apache::lonxml::startredirection();
2393: }
2394: return '';
2395: }
2396:
2397: sub end_lang {
2398: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2399: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2400: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2401: my $result = &Apache::lonxml::endredirection();
2402: my $which = &Apache::lonxml::get_param('which',$parstack,
2403: $safeeval);
1.431 raeburn 2404: if ($which=~/\w/) {
2405: $available_texts{$which} = $result;
2406: }
2407: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
2408: $safeeval);
2409: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
2410: if ($language=~/\w/) {
2411: $available_texts{$language} = $result;
2412: }
1.427 bisitz 2413: }
2414:
1.397 albertel 2415: }
2416: return '';
2417: }
1.500 foxr 2418: } # end langauge block specific tags.
2419:
1.397 albertel 2420:
1.170 www 2421: sub start_instructorcomment {
1.201 albertel 2422: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 2423:
2424: my $result;
2425:
1.339 albertel 2426: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2427: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 2428: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 2429: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 2430: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
2431: $parser,$style);
1.170 www 2432: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2433: }
2434: $result='';
2435: } elsif ($target eq 'edit') {
2436: $result .=&Apache::edit::tag_start($target,$token);
2437: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2438: }
2439: return $result;
2440: }
2441:
2442: sub end_instructorcomment {
1.159 albertel 2443: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2444: my $result;
2445: if ($target eq "edit") {
2446: $result.= &Apache::edit::tag_end($target,$token,'');
2447: }
2448: return $result;
1.4 tsai 2449: }
2450:
2451: sub start_while {
1.326 albertel 2452: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2453:
1.160 albertel 2454: my $result;
1.339 albertel 2455: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2456: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2457: my $code = $token->[2]->{'condition'};
1.4 tsai 2458:
1.160 albertel 2459: push( @Apache::structuretags::whileconds, $code);
2460: if (!$Apache::lonxml::default_homework_loaded) {
2461: &Apache::lonxml::default_homework_load($safeeval);
2462: }
2463: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2464: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2465: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2466: push( @Apache::structuretags::whileline, $token->[5]);
2467: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2468: if ( $result ) {
2469: &Apache::lonxml::newparser($parser,\$bodytext);
2470: }
2471: } elsif ($target eq 'edit') {
2472: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2473: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2474: $token,40);
2475: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2476: } elsif ($target eq 'modified') {
2477: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2478: $safeeval,'condition');
2479: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2480: }
1.160 albertel 2481: return $result;
1.4 tsai 2482: }
2483:
2484: sub end_while {
1.159 albertel 2485: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2486: my $result;
2487:
1.339 albertel 2488: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2489: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2490: my $code = pop(@Apache::structuretags::whileconds);
2491: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2492: my $line = pop(@Apache::structuretags::whileline);
2493: my $return = &Apache::run::run($code,$safeeval);
2494: my $starttime=time;
2495: my $error=0;
2496: while ($return) {
2497: if (time-$starttime >
2498: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2499: $return = 0; $error=1; next;
1.161 albertel 2500: }
2501: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2502: if ($target eq 'grade' || $target eq 'answer' ||
2503: $target eq 'analyze') {
2504: # grade/answer/analyze should produce no output but if we
2505: # are redirecting, the redirecter should know what to do
2506: # with the output
2507: if (!$Apache::lonxml::redirection) { undef($result); }
2508: }
1.161 albertel 2509: $return = &Apache::run::run($code,$safeeval);
2510: }
1.516 bisitz 2511: if ($error) {
2512: &Apache::lonxml::error(
2513: '<pre>'
2514: .&mt('Code ran too long. It ran for more than [_1] seconds.',
2515: $Apache::lonnet::perlvar{'lonScriptTimeout'})
2516: .&mt('This occurred while running <while> on line [_1].',
2517: $line)
2518: .'</pre>');
2519: }
1.160 albertel 2520: } elsif ($target eq "edit") {
2521: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2522: }
1.160 albertel 2523: return $result;
1.1 albertel 2524: }
1.6 tsai 2525:
1.160 albertel 2526: # <randomlist show="1">
1.6 tsai 2527: # <tag1>..</tag1>
2528: # <tag2>..</tag2>
2529: # <tag3>..</tag3>
1.160 albertel 2530: # ...
1.6 tsai 2531: # </randomlist>
2532: sub start_randomlist {
1.326 albertel 2533: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2534: my $result;
1.339 albertel 2535: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2536: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2537: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2538: my $b_parser= HTML::LCParser->new(\$body);
2539: $b_parser->xml_mode(1);
2540: $b_parser->marked_sections(1);
1.159 albertel 2541: my $b_tok;
2542: my @randomlist;
2543: my $list_item;
2544: while($b_tok = $b_parser->get_token() ) {
2545: if($b_tok->[0] eq 'S') { # start tag
2546: # get content of the tag until matching end tag
2547: # get all text upto the matching tag
2548: # and push the content into @randomlist
2549: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2550: $b_parser);
2551: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2552: push(@randomlist,$list_item);
2553: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2554: # $list_item</b>";
2555: }
2556: if($b_tok->[0] eq 'T') { # text
2557: # what to do with text in between tags?
2558: # print "<b>TEXT $b_tok->[1]</b><br />";
2559: }
2560: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2561: # print "<b>END-TAG $b_tok->[1]</b><br />";
2562: # }
2563: }
1.303 albertel 2564: if (@randomlist) {
2565: my @idx_arr = (0 .. $#randomlist);
2566: &Apache::structuretags::shuffle(\@idx_arr);
2567: my $bodytext = '';
2568: my $show=$#randomlist;
2569: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2570: $showarg--;
2571: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2572: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2573: my @currlist;
2574: my $part = $Apache::inputtags::part;
2575: if ($part ne '') {
2576: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2577: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2578: if (!(grep(/^\Q$part\E$/,@currlist))) {
2579: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2580: }
2581: } else {
2582: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2583: }
2584: }
2585: }
1.526 raeburn 2586: for my $i (0 .. $show) {
2587: $bodytext .= "$randomlist[ $idx_arr[$i] ]";
1.303 albertel 2588: }
2589: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2590: }
2591: } elsif ($target eq 'edit' ) {
2592: $result .=&Apache::edit::tag_start($target,$token);
2593: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2594: $token,5);
2595: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2596: } elsif ($target eq 'modified' ) {
2597: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2598: $safeeval,'show');
2599: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2600: }
2601: return $result;
1.7 tsai 2602: }
2603:
2604: sub shuffle {
2605: my $a=shift;
2606: my $i;
1.303 albertel 2607: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 2608: &Apache::response::pushrandomnumber();
1.159 albertel 2609: for($i=@$a;--$i;) {
2610: my $j=int(&Math::Random::random_uniform() * ($i+1));
2611: next if $i == $j;
2612: @$a[$i,$j] = @$a[$j,$i];
2613: }
1.251 albertel 2614: &Apache::response::poprandomnumber();
1.7 tsai 2615: }
1.6 tsai 2616: }
2617:
2618: sub end_randomlist {
1.159 albertel 2619: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2620: my $result;
2621: if ($target eq 'edit' ) {
2622: $result=&Apache::edit::tag_end($target,$token,
2623: 'End Randomly Parsed Block');
2624: }
2625: return $result;
1.6 tsai 2626: }
2627:
1.283 albertel 2628: sub ordered_show_check {
2629: my $last_part=$Apache::inputtags::partlist[-2];
2630: my $in_order=
2631: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2632: my $in_order_show=1;
2633: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2634: $in_order_show=&Apache::response::check_status($last_part);
2635: }
2636: return $in_order_show;
2637: }
2638:
1.469 www 2639:
2640: sub start_startpartmarker {
2641: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2642: my $result='';
2643: if ($target eq 'edit') {
2644: $result=&Apache::edit::tag_start($target,$token);
2645: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2646: $result.=&Apache::edit::end_table();
2647:
2648: }
2649: return $result;
2650: }
2651:
2652: sub end_startpartmarker {
2653: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2654: my @result;
2655: if ($target eq 'edit') { $result[1]='no'; }
2656: return @result;
2657: }
2658:
2659: sub start_endpartmarker {
2660: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2661: my $result='';
2662: if ($target eq 'edit') {
2663: $result=&Apache::edit::tag_start($target,$token);
2664: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2665: $result.=&Apache::edit::end_table();
2666:
2667: }
2668: return $result;
2669: }
2670:
2671: sub end_endpartmarker {
2672: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2673: my @result;
2674: if ($target eq 'edit') { $result[1]='no'; }
2675: return @result;
2676: }
2677:
2678:
2679:
2680:
2681:
1.11 albertel 2682: sub start_part {
1.326 albertel 2683: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2684: if (!$Apache::lonxml::metamode) {
2685: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2686: # duedates.
2687: }
1.159 albertel 2688: my $result='';
1.386 albertel 2689: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2690: $Apache::inputtags::part=$id;
1.177 albertel 2691: push(@Apache::inputtags::partlist,$id);
2692: @Apache::inputtags::response=();
1.159 albertel 2693: @Apache::inputtags::previous=();
2694: @Apache::inputtags::previous_version=();
1.405 albertel 2695: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2696: &Apache::response::reset_params();
2697:
1.159 albertel 2698: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2699: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2700: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 2701: my $in_order_show=&ordered_show_check();
1.214 albertel 2702: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2703: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2704: &Apache::run::run($expression,$safeeval);
1.159 albertel 2705:
2706: if ($target eq 'meta') {
1.224 www 2707: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2708: return &Apache::response::mandatory_part_meta.
2709: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2710: } elsif ($target eq 'web' || $target eq 'grade' ||
2711: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2712: if ($hidden || !$in_order_show) {
1.326 albertel 2713: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2714: } else {
2715: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2716: push (@Apache::inputtags::status,$status);
2717: my $expression='$external::datestatus="'.$status.'";';
2718: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2719: &Apache::run::run($expression,$safeeval);
1.284 albertel 2720: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2721: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2722: }
1.216 albertel 2723: if (( $status eq 'CLOSED' ) ||
2724: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2725: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2726: ( $status eq 'BANNED') ||
2727: ( $status eq 'UNAVAILABLE') ||
2728: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2729: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2730: $style);
1.159 albertel 2731: if ( $target eq "web" ) {
1.211 albertel 2732: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2733: } elsif ( $target eq 'tex' ) {
1.284 albertel 2734: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2735: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2736: } else {
1.211 albertel 2737: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2738: }
1.159 albertel 2739: }
2740: } else {
2741: if ($target eq 'tex') {
1.284 albertel 2742: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2743: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2744: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2745: } else {
2746: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2747: }
1.195 sakharuk 2748: }
1.159 albertel 2749: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2750: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.526 raeburn 2751: my @allkeys = split(/,/,$allkeys);
1.222 sakharuk 2752: my $allow_print_points = 0;
2753: foreach my $partial_key (@allkeys) {
1.230 albertel 2754: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2755: if ($1 ne '0') {$allow_print_points=1;}
2756: }
2757: }
1.275 albertel 2758: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2759: if (defined($maxtries) && $maxtries < 0) {
2760: $allow_print_points=0;
2761: }
1.302 albertel 2762: if (lc($env{'course.'.$env{'request.course.id'}.
2763: '.disableexampointprint'}) eq 'yes') {
2764: $allow_print_points=0;
2765: }
1.463 foxr 2766: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2767: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2768:
2769: }
1.233 www 2770: } elsif ($target eq 'web') {
1.479 raeburn 2771: if ($status eq 'CAN_ANSWER') {
2772: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2773: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
2774: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
2775: my $num = scalar(@Apache::inputtags::partlist)-1;
2776: if ($probrandomize eq 'randomizetry') {
2777: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
2778: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2779: } else {
2780: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2781: if ($probrandtries ne $reqtries) {
2782: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2783: }
2784: }
2785: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
2786: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2787: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2788: }
2789: }
1.475 raeburn 2790: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2791: }
2792: }
2793: }
2794: } elsif ($target eq 'edit') {
2795: $result.=&Apache::edit::tag_start($target,$token);
2796: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2797: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2798: ' '.
2799: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2800: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2801: } elsif ($target eq 'modified') {
2802: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2803: $safeeval,'id','display');
1.159 albertel 2804: if ($constructtag) {
1.225 albertel 2805: #limiting ids to only letters numbers, and space
1.224 www 2806: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2807: $result = &Apache::edit::rebuild_tag($token);
2808: }
2809: }
2810: return $result;
1.11 albertel 2811: }
2812:
2813: sub end_part {
1.159 albertel 2814: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2815: &Apache::lonxml::debug("in end_part $target ");
2816: my $status=$Apache::inputtags::status['-1'];
2817: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2818: my $in_order_show=&ordered_show_check();
1.321 albertel 2819: my $result;
2820: if (!$Apache::lonxml::metamode) {
2821: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2822: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2823: }
1.312 albertel 2824: if ($target eq 'grade') {
1.249 albertel 2825: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2826: !$hidden && $in_order_show) {
1.311 foxr 2827: $result.=&Apache::inputtags::grade;
1.249 albertel 2828: } else {
2829: # move any submission data to .hidden
2830: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2831: }
1.283 albertel 2832: } elsif (($target eq 'web' || $target eq 'tex') &&
2833: !$hidden && $in_order_show) {
1.159 albertel 2834: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2835: $target);
1.490 raeburn 2836: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2837: ($env{'form.grade_imsexport'})) {
1.212 albertel 2838: $gradestatus='';
2839: }
1.311 foxr 2840: $result.=$gradestatus;
1.265 sakharuk 2841: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2842: } elsif ($target eq 'edit') {
1.311 foxr 2843: $result.=&Apache::edit::end_table();
1.322 albertel 2844: } elsif ($target eq 'modified') {
2845: $result .= $token->[2];
1.159 albertel 2846: }
2847: pop @Apache::inputtags::status;
2848: $Apache::inputtags::part='';
1.295 albertel 2849: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2850: return $result;
1.11 albertel 2851: }
1.1 albertel 2852:
1.25 albertel 2853: sub start_preduedate {
1.326 albertel 2854: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2855: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2856: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2857: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2858: if (!$Apache::lonhomework::scantronmode &&
2859: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2860: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2861: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2862: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2863: }
1.24 albertel 2864: }
1.159 albertel 2865: return '';
1.24 albertel 2866: }
2867:
1.25 albertel 2868: sub end_preduedate {
1.159 albertel 2869: return '';
1.24 albertel 2870: }
2871:
1.369 foxr 2872: # In all the modes where <postanswerdate> text is
2873: # displayable, all we do is eat up the text between the start/stop
2874: # tags if the conditions are not right to display it.
1.25 albertel 2875: sub start_postanswerdate {
1.326 albertel 2876: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2877: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2878: &Apache::lonnet::allowed('pav',
2879: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2880: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2881: $target eq 'tex' ) {
1.300 albertel 2882: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2883: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2884: (($target eq 'tex') && !$pav)) {
1.326 albertel 2885: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2886: }
2887: }
2888: return '';
1.24 albertel 2889: }
2890:
1.25 albertel 2891: sub end_postanswerdate {
1.159 albertel 2892: return '';
1.24 albertel 2893: }
2894:
1.25 albertel 2895: sub start_notsolved {
1.326 albertel 2896: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2897: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2898: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2899: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2900: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2901: if ($gradestatus =~ /^correct/ &&
2902: &Apache::response::show_answer()) {
1.159 albertel 2903: &Apache::lonxml::debug("skipping");
1.326 albertel 2904: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2905: }
1.24 albertel 2906: }
1.159 albertel 2907: return '';
1.24 albertel 2908: }
2909:
1.25 albertel 2910: sub end_notsolved {
1.159 albertel 2911: return '';
1.24 albertel 2912: }
2913:
2914: sub start_solved {
1.326 albertel 2915: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2916: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2917: $target eq 'tex') {
2918: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2919: if ($gradestatus !~ /^correct/ ||
2920: !&Apache::response::show_answer()) {
1.326 albertel 2921: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2922: }
1.24 albertel 2923: }
1.159 albertel 2924: return '';
1.24 albertel 2925: }
2926:
2927: sub end_solved {
1.248 albertel 2928: return '';
2929: }
2930:
2931: sub start_problemtype {
1.326 albertel 2932: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2933: my $result;
1.339 albertel 2934: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2935: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2936: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2937: if (!defined($mode)) { $mode='show'; }
2938: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2939: my $found=0;
2940: foreach my $type (split(',',$for)) {
2941: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2942: }
2943: if ($mode eq 'show' && !$found) {
1.326 albertel 2944: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2945: }
2946: if ($mode eq 'hide' && $found) {
1.326 albertel 2947: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2948: }
2949: } elsif ($target eq 'edit') {
2950: $result .=&Apache::edit::tag_start($target,$token);
2951: $result.=&Apache::edit::select_arg('Mode:','mode',
2952: [['show','Show'],
2953: ['hide','Hide']]
2954: ,$token);
2955: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.511 bisitz 2956: [ ['exam','Bubblesheet Exam/Quiz Problem'],
1.248 albertel 2957: ['survey','Survey'],
1.465 raeburn 2958: ['surveycred','Survey (with credit)'],
2959: ['anonsurvey','Anonymous Survey'],
2960: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2961: ['problem','Homework Problem'],
1.479 raeburn 2962: ['practice','Practice Problem'],
2963: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2964: ,$token);
2965: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2966: } elsif ($target eq 'modified') {
2967: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2968: $safeeval,'mode','for');
2969: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2970: }
2971: return $result;
2972: }
2973:
2974: sub end_problemtype {
1.159 albertel 2975: return '';
1.24 albertel 2976: }
1.34 albertel 2977:
2978: sub start_startouttext {
1.159 albertel 2979: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2980: my @result=(''.'');
2981: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2982:
2983: my $nesting =
2984: &Apache::lonxml::set_state('outtext',
2985: &Apache::lonxml::get_state('outtext')+1);
2986: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2987: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2988: }
1.159 albertel 2989: return (@result);
1.34 albertel 2990: }
1.159 albertel 2991:
1.34 albertel 2992: sub end_startouttext {
1.326 albertel 2993: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2994: my $result='';
2995: my $text='';
2996: if ($target eq 'edit') {
1.424 foxr 2997: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2998: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.527 ! golterma 2999: $result.=&Apache::edit::start_table($token)."<tr><td>".&Apache::loncommon::insert_folding_button()
! 3000: ." ".&mt('Text Block')."</td>"
1.438 bisitz 3001: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 3002: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 3003: .'</span></td>'
1.515 golterma 3004: .'<td><span id="math_'.$areaid.'">'
1.474 raeburn 3005: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
1.512 bisitz 3006: .'</span></td>'
1.474 raeburn 3007: .'<td>'
3008: .&Apache::edit::insertlist($target,$token)
3009: .'</td>'
1.515 golterma 3010: .'<td class="LC_edit_problem_latexhelper">' .
1.474 raeburn 3011: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 3012: &Apache::edit::end_row().
1.362 albertel 3013: &Apache::edit::start_spanning_row()."\n".
1.255 www 3014: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 3015: }
3016: if ($target eq 'modified') {
1.219 albertel 3017: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 3018: }
3019: if ($target eq 'tex') {
3020: $result .= '\noindent ';
3021: }
3022: return $result;
1.34 albertel 3023: }
1.159 albertel 3024:
1.34 albertel 3025: sub start_endouttext {
1.159 albertel 3026: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3027: my $result='';
3028: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
3029: if ($target eq "modified") {
3030: $result='<endouttext />'.
1.377 albertel 3031: &Apache::edit::handle_insertafter('startouttext');
3032: }
1.404 albertel 3033:
3034: my $nesting =
3035: &Apache::lonxml::set_state('outtext',
3036: &Apache::lonxml::get_state('outtext')-1);
3037: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
3038: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
3039: &Apache::lonxml::set_state('outtext', 0);
3040: }
1.159 albertel 3041: return $result;
1.34 albertel 3042: }
1.159 albertel 3043:
1.34 albertel 3044: sub end_endouttext {
1.159 albertel 3045: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3046: my @result=('','');
3047: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
3048: return (@result);
1.34 albertel 3049: }
1.159 albertel 3050:
1.45 albertel 3051: sub delete_startouttext {
1.326 albertel 3052: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
3053: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 3054: my $text=$$parser['-1']->get_text("/endouttext");
3055: my $ntoken=$$parser['-1']->get_token();
3056: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
3057: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
3058: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
3059: # they did the last time round
3060: &Apache::lonxml::increasedepth($ntoken);
3061: &Apache::lonxml::decreasedepth($ntoken);
3062: return 1;
1.193 www 3063: }
3064:
3065: sub start_simpleeditbutton {
3066: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3067: my $result='';
1.284 albertel 3068: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 3069: ($target eq 'web') &&
1.330 albertel 3070: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 3071: my $url=$env{'request.noversionuri'};
1.193 www 3072: $url=~s/\?.*$//;
1.367 albertel 3073: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 3074: # Warning makes more sense and is more important on edit screen
1.442 bisitz 3075: # $result='<p class="LC_warning">'
3076: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
3077: # .&Apache::loncommon::help_open_topic('Caching')
3078: # .'</p>';
1.486 www 3079: $result.=&Apache::loncommon::head_subbox(
3080: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 3081: .&Apache::lonhtmlcommon::add_item_funclist(
3082: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
3083: .&mt('Edit').'</a>')
1.486 www 3084: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 3085:
1.193 www 3086: }
3087: return $result;
3088: }
3089:
3090: sub end_simpleeditbutton {
3091: return '';
1.45 albertel 3092: }
1.34 albertel 3093:
1.428 raeburn 3094: sub practice_problem_header {
3095: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
3096: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
3097: '</span>';
3098: }
3099:
1.479 raeburn 3100: sub randomizetry_problem_header {
3101: my ($problemstatus,$reqtries) = @_;
3102: my ($header,$text);
3103: if ($reqtries > 1) {
3104: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
3105: if (($problemstatus eq 'no') ||
3106: ($problemstatus eq 'no_feedback_ever')) {
3107: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3108: } else {
3109: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3110: }
3111: } else {
3112: $header = &mt('New Problem Variation Each Try');
3113: if (($problemstatus eq 'no') ||
3114: ($problemstatus eq 'no_feedback_ever')) {
3115: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
3116:
3117: } else {
3118: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
3119: }
3120: }
3121: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
3122: '<span class="LC_info">'.$text.'</span><hr />';
3123: }
3124:
3125: sub randomizetry_part_header {
3126: my ($problemstatus,$reqtries,$num) = @_;
3127: my ($header,$text);
3128: if ($reqtries eq 'none') {
3129: $header = &mt('No Question Variation');
3130: $text = &mt('For this question there will no new variation after a try.');
3131: } elsif ($reqtries > 1) {
3132: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
3133: if (($problemstatus eq 'no') ||
3134: ($problemstatus eq 'no_feedback_ever')) {
3135: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3136: } else {
3137: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3138: }
3139: } else {
3140: $header = &mt('New Question Variation For Each Try');
3141: if (($problemstatus eq 'no') ||
3142: ($problemstatus eq 'no_feedback_ever')) {
3143: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
3144: } else {
3145: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
3146: }
3147: }
3148: my $output;
3149: if ($num > 1) {
3150: $output .= '<hr />';
3151: }
3152: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
3153: '<span class="LC_info">'.$text.'</span><br /><br />';
3154: return $output;
3155: }
3156:
1.1 albertel 3157: 1;
3158: __END__
1.435 jms 3159:
3160: =pod
3161:
3162: =back
3163:
3164: =cut
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