Annotation of loncom/homework/structuretags.pm, revision 1.553
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.553 ! damieng 4: # $Id: structuretags.pm,v 1.552 2017/01/21 19:52:24 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 {
1.553 ! damieng 70: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','translated','instructorcomment','while','randomlist','problem','library','web','print','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:
1.553 ! damieng 195: sub start_print {
! 196: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
! 197: if ($target ne 'edit' && $target ne 'modified') {
! 198: if ($target ne 'tex') {
! 199: my $skip = &Apache::lonxml::get_all_text("/print",$parser,$style);
! 200: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
! 201: }
! 202: } elsif ($target eq "edit") {
! 203: my $bodytext = &Apache::lonxml::get_all_text_unbalanced("/print",$parser);
! 204: my $result = &Apache::edit::tag_start($target,$token);
! 205: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
! 206: return $result;
! 207: } elsif ($target eq "modified") {
! 208: return $token->[4].&Apache::edit::modifiedfield("/print",$parser);
! 209: }
! 210: return '';
! 211: }
! 212:
! 213: sub end_print {
! 214: return '';
! 215: }
! 216:
1.10 albertel 217: sub start_tex {
1.326 albertel 218: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 219: my $result='';
1.383 albertel 220: if ($target ne 'edit' && $target ne 'modified') {
221: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
222: if ($target eq 'tex') {
1.434 foxr 223:
224: # If inside a table, occurrences of \\ must be removed;
225: # else the table blows up.
226:
227: if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
228: $bodytext =~ s/\\\\//g;
229: }
1.432 foxr 230: return $bodytext.'{}';
1.383 albertel 231: }
232: } elsif ($target eq "edit" ) {
233: my $bodytext =
234: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
235: my $result = &Apache::edit::tag_start($target,$token);
236: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
237: return $result;
238: } elsif ( $target eq "modified" ) {
239: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 240: }
1.198 sakharuk 241: return $result;;
1.10 albertel 242: }
243:
244: sub end_tex {
1.44 ng 245: return '';
1.9 albertel 246: }
247:
1.400 albertel 248: sub homework_js {
1.531 raeburn 249: my ($postsubmit,$timeout);
250: if (($env{'request.course.id'}) && ($env{'request.state'} ne 'construct')) {
1.546 raeburn 251: my $crstype = &Apache::loncommon::course_type();
252: if ($crstype eq 'Community') {
1.531 raeburn 253: $crstype = 'community';
1.546 raeburn 254: } elsif ($crstype eq 'Placement') {
255: $crstype = 'placement';
1.531 raeburn 256: } else {
257: if ($env{'course.'.$env{'request.course.id'}.'.internal.coursecode'}) {
258: $crstype = 'official';
259: } elsif ($env{'course.'.$env{'request.course.id'}.'.internal.textbook'}) {
260: $crstype = 'textbook';
261: } else {
262: $crstype = 'unofficial';
263: }
264: }
265: $postsubmit = $env{'course.'.$env{'request.course.id'}.'.internal.postsubmit'};
266: if ($postsubmit eq '') {
267: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
268: $postsubmit = $domdefs{'postsubmit'};
269: unless ($postsubmit eq 'off') {
270: $timeout = $domdefs{$crstype.'postsubtimeout'};
271: }
272: } elsif ($postsubmit eq '0') {
273: $postsubmit = 'off';
274: } elsif ($postsubmit eq '1') {
275: $postsubmit = 'on';
276: $timeout = $env{'course.'.$env{'request.course.id'}.'.internal.postsubtimeout'};
277: if ($timeout eq '') {
278: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
279: $timeout = $domdefs{$crstype.'postsubtimeout'};
280: }
281: }
282: if ($timeout eq '') {
283: $timeout = 60;
284: }
285: } else {
286: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'request.role.domain'});
287: $postsubmit = $domdefs{'postsubmit'};
288: unless ($postsubmit eq 'off') {
289: $timeout = 60;
290: }
291: }
292: my $jstimeout = 0;
293: if ($timeout) {
294: $jstimeout = 1000 * $timeout;
295: }
1.400 albertel 296: return &Apache::loncommon::resize_textarea_js().
1.527 golterma 297: &Apache::loncommon::colorfuleditor_js().
1.416 raeburn 298: &setmode_javascript().
1.531 raeburn 299: <<"JS";
1.400 albertel 300: <script type="text/javascript">
1.483 raeburn 301: // <![CDATA[
1.494 raeburn 302: function setSubmittedPart (part,prefix) {
303: if (typeof(prefix) == 'undefined') {
304: this.document.lonhomework.submitted.value="part_"+part;
305: } else {
306: for (var i=0;i<this.document.lonhomework.elements.length;i++) {
307: if (this.document.lonhomework.elements[i].name == prefix+'submitted') {
308: this.document.lonhomework.elements[i].value="part_"+part;
309: }
310: }
311: }
1.400 albertel 312: }
313:
1.532 raeburn 314: function disableAutoComplete (id) {
315: var field = document.getElementById(id);
316: if (field != null && field != undefined){
317: if ('autocomplete' in field) {
318: field.autocomplete = "off";
319: } else {
320: field.setAttribute("autocomplete", "off");
321: }
322: }
323: }
324:
1.400 albertel 325: function image_response_click (which, e) {
326: init_geometry();
327: if (!e) { e = window.event; } //IE
328: var input_element = document.lonhomework.elements[which];
1.401 albertel 329: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 330: var token = token_element.value;
1.401 albertel 331: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 332: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
333: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
334: var click = x+':'+y;
335: input_element.value = click;
1.485 raeburn 336: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
1.400 albertel 337: }
1.520 raeburn 338:
339: var submithandled = 0;
1.521 raeburn 340: var keypresshandled = 0;
1.531 raeburn 341: var postsubmit = '$postsubmit';
1.520 raeburn 342:
1.531 raeburn 343: \$(document).ready(function(){
344: if (postsubmit != 'off') {
345: \$(document).keypress(function(event){
1.521 raeburn 346: var keycode = (event.keyCode ? event.keyCode : event.which);
347: if ((keycode == '13') && (keypresshandled == 0)) {
1.531 raeburn 348: if ( \$( document.activeElement ).hasClass("LC_textline") ) {
1.521 raeburn 349: keypresshandled = 1;
1.531 raeburn 350: var idsArray = \$( document.activeElement ).attr("id").split(/HWVAL_/);
1.521 raeburn 351: if (idsArray.length) {
352: event.preventDefault();
353: var itemsArray = idsArray[1].split(/_/);
354: var buttonId = idsArray[0]+'submit_'+itemsArray[0];
1.531 raeburn 355: \$("#"+buttonId).trigger("click");
1.521 raeburn 356: }
357: }
358: }
359: });
360:
1.531 raeburn 361: \$(document).delegate('form :submit', 'click', function( event ) {
362: if ( \$( this ).hasClass( "LC_hwk_submit" ) ) {
1.520 raeburn 363: var buttonId = this.id;
1.531 raeburn 364: var timeout = $jstimeout;
1.520 raeburn 365: if (submithandled == 0) {
366: submithandled = 1;
1.531 raeburn 367: \$( "#msg_"+buttonId ).css({"display": "inline","background-color": "#87cefa",
1.521 raeburn 368: "color": "black","padding": "2px"}) ;
1.531 raeburn 369: if (( \$(this.form).id == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
1.522 raeburn 370: if (buttonId != "all_submit") {
1.531 raeburn 371: \$( ".LC_status_"+buttonId ).hide();
1.522 raeburn 372: if (( "#"+buttonId+"_pressed" ).length) {
1.531 raeburn 373: \$( "#"+buttonId+"_pressed" ).val( "1" );
1.522 raeburn 374: }
1.520 raeburn 375: }
1.522 raeburn 376: } else {
1.531 raeburn 377: \$( ".LC_status_"+buttonId ).hide();
1.520 raeburn 378: }
1.531 raeburn 379: \$(this.form).submit();
380: \$( ".LC_hwk_submit" ).prop( "disabled", true);
381: \$( ".LC_textline" ).prop( "readonly", "readonly");
1.520 raeburn 382: event.preventDefault();
1.531 raeburn 383:
384: if (timeout > 0) {
385: setTimeout(function(){
386: \$( "#msg_"+buttonId ).css({"display": "none"});
387: if (( \$(this.form).id == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
388: if (buttonId != "all_submit") {
389: if (( "#"+buttonId+"_pressed" ).length) {
390: \$( "#"+buttonId+"_pressed" ).val( "" );
391: }
392: }
393: }
394: \$( ".LC_hwk_submit" ).prop( "disabled", false);
395: \$( ".LC_textline" ).prop( "readonly", false);
396: submithandled = 0;
397: keypresshandled = 0;
398: }, timeout);
399: }
1.520 raeburn 400: return true;
401: }
402: }
403: });
1.531 raeburn 404: }
1.520 raeburn 405: });
406:
1.483 raeburn 407: // ]]>
1.400 albertel 408: </script>
409: JS
410: }
411:
1.416 raeburn 412: sub setmode_javascript {
413: return <<"ENDSCRIPT";
414: <script type="text/javascript">
1.485 raeburn 415: // <![CDATA[
1.416 raeburn 416: function setmode(form,probmode) {
417: form.problemmode.value = probmode;
418: form.submit();
419: }
1.485 raeburn 420: // ]]>
1.416 raeburn 421: </script>
422: ENDSCRIPT
423: }
424:
1.48 albertel 425: sub page_start {
1.345 albertel 426: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
427: $extra_head)=@_;
1.159 albertel 428: my %found;
1.207 albertel 429: foreach my $taginside (@$tagstack) {
1.159 albertel 430: foreach my $taglookedfor ('html','body','form') {
431: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
432: }
433: }
434:
1.343 albertel 435: if ($target eq 'tex') {
436: return
437: &Apache::londefdef::start_html($target,$token,$tagstack,
438: $parstack,$parser,$safeeval);
439: }
440:
1.474 raeburn 441: $extra_head .= &homework_js().
442: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
443: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
1.550 raeburn 444: my %textarea_args;
445: if (($env{'request.state'} ne 'construct') ||
446: ($env{'environment.nocodemirror'})) {
447: %textarea_args = (
1.474 raeburn 448: dragmath => 'math',
449: );
1.550 raeburn 450: }
1.474 raeburn 451: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 452: }
1.478 raeburn 453: my $is_task = ($env{'request.uri'} =~ /\.task$/);
1.528 raeburn 454: my ($needs_upload,$partlist);
1.495 raeburn 455: my ($symb)= &Apache::lonnet::whichuser();
456: my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
1.478 raeburn 457: if ($is_task) {
1.495 raeburn 458: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
1.493 raeburn 459: } else {
460: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.uploadedfiletypes") ne '') {
1.495 raeburn 461: unless ($env{'request.state'} eq 'construct') {
462: my $navmap = Apache::lonnavmaps::navmap->new();
463: if (ref($navmap)) {
464: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 465: my $is_page;
466: if (ref($mapres)) {
467: $is_page = $mapres->is_page();
468: }
469: unless ($is_page) {
1.495 raeburn 470: $needs_upload = 1;
471: }
1.528 raeburn 472: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
473: my $res = $navmap->getBySymb($symb);
474: if (ref($res)) {
475: $partlist = $res->parts();
476: }
477: }
1.495 raeburn 478: }
479: }
1.493 raeburn 480: } else {
481: unless ($env{'request.state'} eq 'construct') {
482: my $navmap = Apache::lonnavmaps::navmap->new();
483: if (ref($navmap)) {
1.495 raeburn 484: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 485: my $is_page;
486: if (ref($mapres)) {
487: $is_page = $mapres->is_page();
488: }
1.528 raeburn 489: if ($is_page) {
490: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
491: my $res = $navmap->getBySymb($symb);
492: if (ref($res)) {
493: $partlist = $res->parts();
494: }
495: }
496: } else {
1.495 raeburn 497: my $res = $navmap->getBySymb($symb);
498: if (ref($res)) {
1.528 raeburn 499: $partlist = $res->parts();
1.495 raeburn 500: if (ref($partlist) eq 'ARRAY') {
501: foreach my $part (@{$partlist}) {
502: my @types = $res->responseType($part);
503: my @ids = $res->responseIds($part);
504: for (my $i=0; $i < scalar(@ids); $i++) {
505: if ($types[$i] eq 'essay') {
506: my $partid = $part.'_'.$ids[$i];
507: if (&Apache::lonnet::EXT("resource.$partid.uploadedfiletypes") ne '') {
508: $needs_upload = 1;
509: last;
510: }
1.493 raeburn 511: }
512: }
513: }
1.495 raeburn 514: }
515: }
1.493 raeburn 516: }
517: }
518: }
519: }
1.495 raeburn 520: if ($needs_upload) {
1.538 musolffc 521: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js()
522: .'<script type="text/javascript"
523: src="/res/adm/includes/file_upload.js"></script>';
1.495 raeburn 524: }
1.478 raeburn 525: }
1.425 raeburn 526:
1.344 albertel 527: my %body_args;
528: if (defined($found{'html'})) {
529: $body_args{'skip_phases'}{'head'}=1;
530: } else {
1.343 albertel 531:
1.345 albertel 532: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 533:
1.379 albertel 534: $extra_head .= &Apache::londefdef::generate_css_links();
535:
1.384 albertel 536: if ($env{'request.state'} eq 'construct') {
1.343 albertel 537: $extra_head.=&Apache::edit::js_change_detection().
538: "<script type=\"text/javascript\">\n".
539: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
540: &Apache::loncommon::browser_and_searcher_javascript().
541: "\n</script>\n";
1.525 raeburn 542: if ($target eq 'edit') {
543: $extra_head .= &Apache::edit::js_update_linknum();
544: }
1.343 albertel 545: }
1.159 albertel 546: }
1.343 albertel 547:
1.446 bisitz 548: my $pageheader = '';
1.344 albertel 549: if (defined($found{'body'})) {
550: $body_args{'skip_phases'}{'body'}=1;
551: } elsif (!defined($found{'body'})
552: && $env{'request.state'} eq 'construct') {
1.343 albertel 553: if ($target eq 'web' || $target eq 'edit') {
1.542 raeburn 554: unless ($env{'form.inhibitmenu'} eq 'yes') {
555: # Breadcrumbs for Authoring Space
556: &Apache::lonhtmlcommon::clear_breadcrumbs();
557: &Apache::lonhtmlcommon::add_breadcrumb({
558: 'text' => 'Authoring Space',
559: 'href' => &Apache::loncommon::authorspace($env{'request.uri'}),
560: });
561: # breadcrumbs (and tools) will be created
562: # in start_page->bodytag->innerregister
1.460 droeschl 563:
1.450 bisitz 564: # FIXME Where are we?
1.542 raeburn 565: # &Apache::lonhtmlcommon::add_breadcrumb({
566: # 'text' => 'Problem Editing', # 'Problem Testing'
567: # 'href' => '',
568: # });
569: $pageheader = &Apache::loncommon::head_subbox(
570: &Apache::loncommon::CSTR_pageheader());
571: }
572: }
1.272 albertel 573: } elsif (!defined($found{'body'})) {
1.343 albertel 574: my %add_entries;
1.159 albertel 575: my $background=&Apache::lonxml::get_param('background',$parstack,
576: $safeeval);
1.343 albertel 577: if ($background ne '' ) {
578: $add_entries{'background'} = $background;
579: }
1.344 albertel 580:
1.290 albertel 581: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
582: $safeeval);
1.446 bisitz 583: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 584:
1.446 bisitz 585: $body_args{'bgcolor'} = $bgcolor;
586: # $body_args{'no_title'} = 1;
587: $body_args{'force_register'} = 1;
588: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 589: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 590: $body_args{'only_body'} = 1;
1.518 raeburn 591: } elsif ($target eq 'web') {
592: $body_args{'print_suppress'} = 1;
1.446 bisitz 593: }
1.344 albertel 594: }
1.365 albertel 595: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 596: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
597: \%body_args);
1.446 bisitz 598: $page_start .= $pageheader;
1.462 raeburn 599: if (!defined($found{'body'})
600: && $env{'request.state'} ne 'construct'
601: && ($target eq 'web' || $target eq 'webgrade')) {
602:
603: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
604: if ($symb eq '' && !$publicuser) {
605: $page_start .= '<p class="LC_info">'
606: .&mt('Browsing resource, all submissions are temporary.')
607: .'</p>';
1.457 bisitz 608: }
1.344 albertel 609: }
610:
1.409 albertel 611: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 612: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 613: }
614: my $form_tag_start;
615: if (!defined($found{'form'})) {
1.337 albertel 616: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 617: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 618: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 619: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 620: $form_tag_start.=$uri.'" ';
621: if ($target eq 'edit') {
622: $form_tag_start.=&Apache::edit::form_change_detection();
623: }
1.493 raeburn 624: my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
625: my ($path,$multiresp) =
626: &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
1.495 raeburn 627: if (($is_task) || ($needs_upload)) {
628: $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
1.478 raeburn 629: }
1.368 albertel 630: $form_tag_start.='>'."\n";
1.355 albertel 631:
632: if ($symb =~ /\S/) {
633: $symb=
634: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
635: $form_tag_start.=
1.368 albertel 636: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 637: }
1.159 albertel 638: }
1.528 raeburn 639: return ($page_start,$form_tag_start,$partlist);
1.105 albertel 640: }
641:
1.141 matthew 642: #use Time::HiRes();
1.105 albertel 643: sub get_resource_name {
1.159 albertel 644: my ($parstack,$safeeval)=@_;
1.388 foxr 645: my $name;
1.204 albertel 646: if (defined($Apache::lonhomework::name)) {
1.388 foxr 647: $name = $Apache::lonhomework::name;
648: } else {
649: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 650: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 651: if ($name eq '') {
652: $name=&Apache::lonnet::EXT('resource.title');
653: if ($name eq 'con_lost') { $name = ''; }
654: }
655: if ($name!~/\S+/) {
656: $name=$env{'request.uri'};
657: $name=~s-.*/([^/]+)$-$1-;
658: }
659: # The name has had html tags escaped:
660:
661: $name=~s/</</gs;
662: $name=~s/>/>/gs;
663:
664: $Apache::lonhomework::name=$name;
1.204 albertel 665: }
1.159 albertel 666: return $name;
1.105 albertel 667: }
668:
669: sub setup_rndseed {
1.528 raeburn 670: my ($safeeval,$target,$probpartlist)=@_;
1.367 albertel 671: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 672: my ($questiontype,$set_safespace,$rndseed);
673: if ($target eq 'analyze') {
674: $questiontype = $env{'form.grade_questiontype'};
675: }
676: unless (defined($questiontype)) {
677: $questiontype = $Apache::lonhomework::type;
678: }
1.333 albertel 679: if ($env{'request.state'} eq "construct"
680: || $symb eq ''
681: || $Apache::lonhomework::type eq 'practice'
682: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 683: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 684: ['rndseed']);
1.284 albertel 685: $rndseed=$env{'form.rndseed'};
1.159 albertel 686: if (!$rndseed) {
1.162 albertel 687: $rndseed=$Apache::lonhomework::history{'rndseed'};
688: if (!$rndseed) {
689: $rndseed=time;
690: }
1.284 albertel 691: $env{'form.rndseed'}=$rndseed;
1.162 albertel 692: }
1.479 raeburn 693: if (($env{'request.state'} eq "construct") &&
694: ($Apache::lonhomework::type eq 'randomizetry')) {
695: my $tries = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
696: if ($tries) {
697: $rndseed += $tries;
698: }
1.480 raeburn 699: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 700: }
1.551 damieng 701: if ( ($env{'form.resetdata'} eq 'new_problem_variation'
1.374 albertel 702: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 703: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 704: srand(time);
705: $rndseed=int(rand(2100000000));
1.284 albertel 706: $env{'form.rndseed'}=$rndseed;
707: delete($env{'form.resetdata'});
708: delete($env{'form.newrandomization'});
1.159 albertel 709: }
1.488 www 710: $rndseed=~s/\,/\:/g;
711: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 712: if (defined($rndseed)) {
713: my ($c1,$c2)=split(/\:/,$rndseed);
714: unless ($c2) { $c2=0; }
715: unless (($c1==int($c1)) && ($c2==int($c2))) {
716: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
717: }
1.187 albertel 718: }
1.247 albertel 719: if ($Apache::lonhomework::history{'resource.CODE'}) {
720: $rndseed=&Apache::lonnet::rndseed();
721: }
1.479 raeburn 722: $set_safespace = 1;
723: } elsif ($questiontype eq 'randomizetry') {
724: if ($target eq 'analyze') {
725: if (defined($env{'form.grade_rndseed'})) {
726: $rndseed = $env{'form.grade_rndseed'};
727: }
728: }
729: unless (($target eq 'analyze') && (defined($rndseed))) {
730: $rndseed=&Apache::lonnet::rndseed();
1.528 raeburn 731: my $partfortries = $Apache::inputtags::part;
732: if (ref($probpartlist) eq 'ARRAY') {
733: if ((@{$probpartlist} == 1) && ($probpartlist->[0] ne $Apache::inputtags::part)) {
734: $partfortries = $probpartlist->[0];
735: }
736: }
737: my $curr_try = $Apache::lonhomework::history{"resource.$partfortries.tries"};
1.479 raeburn 738: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
739: $curr_try ++;
740: }
741: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
742: $rndseed = $1;
743: }
744: if ($curr_try) {
1.528 raeburn 745: my $reqtries = &Apache::lonnet::EXT("resource.$partfortries.randomizeontries");
1.479 raeburn 746: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
747: my $inc = int(($curr_try-1)/$reqtries);
748: $rndseed += $inc;
749: } else {
750: $rndseed += $curr_try;
751: }
752: }
753: }
754: $set_safespace = 1;
1.528 raeburn 755: if ($target eq 'grade') {
756: $Apache::lonhomework::rawrndseed = $rndseed;
757: }
1.479 raeburn 758: }
759: if ($set_safespace) {
760: if ($safeeval) {
761: &Apache::lonxml::debug("Setting rndseed to $rndseed");
762: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
763: }
764: }
765: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
766: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 767: }
768: return $rndseed;
1.105 albertel 769: }
770:
1.268 albertel 771: sub remember_problem_state {
772: return '
1.284 albertel 773: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
774: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
775: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 776: }
777:
1.487 www 778: sub problem_edit_action_button {
779: my ($name,$action,$accesskey,$text,$flag)=@_;
780: my $actionscript="setmode(this.form,'$action')";
781: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
782: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
783: }
784:
1.423 www 785: sub problem_edit_buttons {
1.487 www 786: my ($mode)=@_;
1.535 droeschl 787: # Buttons that save
788: my $result = '<div style="float:right">';
789: if ($mode eq 'editxml') {
790: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
791: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
792: } else {
793: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
794: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
795: }
796: $result.="\n</div>\n";
1.487 www 797: # Buttons that do not save
1.535 droeschl 798: $result .= '<div>'.
1.487 www 799: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
800: if ($mode eq 'editxml') {
801: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
802: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
1.550 raeburn 803: if ($env{'environment.nocodemirror'}) {
804: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
805: }
1.487 www 806: } else {
807: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
808: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
809: }
810: $result.="\n</div>";
811: return $result;
1.423 www 812: }
813:
814: sub problem_edit_header {
1.527 golterma 815: my ($mode)=@_;
816: my $return = '<input type="hidden" name="submitted" value="edit" />'.
1.487 www 817: &remember_problem_state('edit').'
1.527 golterma 818: <div class="LC_edit_problem_header">
819: <div class="LC_edit_problem_header_title">
820: '.&mt('Problem Editing').$mode.&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
821: </div><div class="LC_edit_actionbar" id="actionbar">'.
822: '<input type="hidden" name="problemmode" value="saveedit" />'.
823: &problem_edit_buttons();
824:
1.535 droeschl 825: $return .= '</div></div>' . &Apache::lonxml::message_location();
1.527 golterma 826: $return .= '<link rel="stylesheet" href="/adm/codemirror/codemirror-combined.css" />
827: <script type="text/javascript" src="/adm/codemirror/codemirror-compressed-colorful.js"></script>';
828:
829: $return .= '<script type="text/javascript" src="/adm/jQuery/addons/jquery-scrolltofixed.js"></script>
830: <script type="text/javascript">
831: // unless internet explorer
832: if (!(window.navigator.appName == "Microsoft Internet Explorer" && (document.documentMode || document.compatMode))){
833: $(document).ready(
834: function() {
835: $(\'.LC_edit_actionbar\').scrollToFixed(
836: {
837: fixed: function(){
1.535 droeschl 838: //$(this).find(\'.LC_edit_actionbar\').css(\'height\', \'31px\');
839: $(this).find(\'.LC_edit_actionbar\');
1.527 golterma 840: }
841: }
842: );
843: }
844: );
845: }
846: </script>
847: <table id="LC_edit_problem_colorful" border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
848: return $return;
1.105 albertel 849: }
850:
851: sub problem_edit_footer {
1.527 golterma 852: my $resource = $env{'request.ambiguous'};
1.412 albertel 853: return '</td></tr></table><br />
854: <div class="LC_edit_problem_footer">
1.453 bisitz 855: <hr />'.
1.423 www 856: &problem_edit_buttons().'
1.459 bisitz 857: <hr style="clear:both;" />
1.527 golterma 858: <script type="text/javascript">
859: restoreState("'.$resource.'");
860: restoreScrollPosition("'.$resource.'");
861: </script>
1.412 albertel 862: </div>
863: '.
1.342 albertel 864: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 865: }
866:
1.235 albertel 867: sub option {
868: my ($value,$name) = @_;
869: my $result ="<option value='".$value."' ";
1.284 albertel 870: if ($env{'form.'.$name} eq $value) {
1.235 albertel 871: $result.=" selected='on' ";
872: }
873: $result.='>';
874: return $result;
875: }
876:
1.105 albertel 877: sub problem_web_to_edit_header {
1.159 albertel 878: my ($rndseed)=@_;
1.406 albertel 879: my $result .= '<div class="LC_edit_problem_header">';
880:
881: if (!$Apache::lonhomework::parsing_a_task) {
882: $result .=
883: '<div class="LC_edit_problem_header_title">'.
884: &mt('Problem Testing').
885: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
886: '</div>';
887: } else {
888: $result .=
889: '<div class="LC_edit_problem_header_title">'.
890: &mt('Task Testing').
891: '</div>';
892: }
893:
1.315 albertel 894: my $show_all_foils_text =
895: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 896: &mt('Show All Instances')
897: : &mt('Show All Foils');
1.315 albertel 898:
1.452 bisitz 899: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
900: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 901: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 902: $show_all.= ' /> '.$show_all_foils_text
903: .'</label></span>';
1.406 albertel 904:
905:
1.384 albertel 906:
1.406 albertel 907: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 908: if (!$Apache::lonhomework::parsing_a_task) {
909: $result.="
1.406 albertel 910: <div class='LC_edit_problem_header_row1'>
911: <span class=\"LC_nobreak\">
1.405 albertel 912: ".&mt("Problem Status:")."
1.235 albertel 913: <select name='problemstate'>
1.270 albertel 914: <option value=''></option>
1.235 albertel 915: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
916: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
917: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
918: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
919: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
920: </select>
1.406 albertel 921: </span>
922: <span class=\"LC_nobreak\">
1.405 albertel 923: ".&mt("Problem Type:")."
1.235 albertel 924: <select name='problemtype'>
1.270 albertel 925: <option value=''></option>
1.509 bisitz 926: ".&option('exam' ,'problemtype').&mt("Bubblesheet Exam Problem")."</option>
1.428 raeburn 927: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 928: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 929: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
930: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
931: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 932: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 933: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 934: </select>
1.406 albertel 935: </span>
936: $show_all
937: </div>
938: <div class='LC_edit_problem_header_row2'>
939: <span class=\"LC_nobreak\">
1.405 albertel 940: ".&mt("Feedback Mode:")."
1.235 albertel 941: <select name='problemstatus'>
942: <option value=''></option>
1.242 albertel 943: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.517 bisitz 944: ".&option('no', 'problemstatus').&mt("Don't Show Incorrect/Correct Feedback")."</option>
1.405 albertel 945: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 946: </select>
1.406 albertel 947: </span>
948: ";
949:
1.376 albertel 950: } elsif ($Apache::lonhomework::parsing_a_task) {
951: $result.="
1.406 albertel 952: <div class='LC_edit_problem_header_row1'>
953: <span class=\"LC_nobreak\">
1.405 albertel 954: ".&mt("Problem Status:")."
1.376 albertel 955: <select name='problemstate'>
956: <option value=''></option>
957: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
958: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
959: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
960: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
961: </select>
1.406 albertel 962: </span>
963: $show_all
964: ";
965: }
966: $result.='
967: <span class="LC_nobreak">
968: '.&mt('Apply style file: ').'
969: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
970: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
971: </span>
1.422 www 972: </div>
973: <div class="LC_edit_problem_header_row1">'.
974: &Apache::lonxml::renderingoptions().'
1.406 albertel 975: </div>
976: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
977: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
1.551 damieng 978: <button type="submit" name="resetdata" accesskey="r" value="reset_submissions">
979: '.&mt('Reset Submissions').'</button>
1.406 albertel 980: </div>
1.453 bisitz 981: <hr />
1.406 albertel 982: <div class="LC_edit_problem_header_randomize_row">
983: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
984: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 985: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 986: $rndseed.'"
987: onchange="javascript:document.lonhomework.changerandseed.click()" />';
988:
989: if (!$Apache::lonhomework::parsing_a_task) {
990: my $numtoanalyze=$env{'form.numtoanalyze'};
991: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 992: $result .= '<span class="LC_nobreak">'.
993: &mt('[_1] for [_2] versions.',
1.416 raeburn 994: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 995: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
996: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 997: $numtoanalyze.'" size="5" />').
998: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
999: '</span>';
1000:
1.313 albertel 1001: }
1.406 albertel 1002:
1003: $result.='
1004: </div>
1.453 bisitz 1005: <hr />
1.447 bisitz 1006: <div>';
1.416 raeburn 1007: $result.='<input type="hidden" name="problemmode" value="view" />';
1008: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
1009: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
1010: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
1011: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.541 damieng 1012: if ($env{'browser.type'} ne 'explorer' || $env{'browser.version'} > 9) {
1013: my $uri = $env{'request.uri'};
1.543 damieng 1014: my $daxeurl = '/daxepage'.$uri;
1.541 damieng 1015: $result .= '<input type="button" value="'.&mt('Edit with Daxe').'" '.
1016: 'onclick="window.open(\''.$daxeurl.'\',\'_blank\');" />';
1017: }
1.408 albertel 1018: $result.='
1019: </div>
1.453 bisitz 1020: <hr />
1.409 albertel 1021: '.&Apache::lonxml::message_location().'
1.406 albertel 1022: </div>';
1.159 albertel 1023: return $result;
1.48 albertel 1024: }
1025:
1.65 albertel 1026: sub initialize_storage {
1.357 albertel 1027: my ($given_symb) = @_;
1.353 albertel 1028: undef(%Apache::lonhomework::results);
1029: undef(%Apache::lonhomework::history);
1.357 albertel 1030: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1031: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 1032:
1033: # anonymous users (CODEd exams) have no data
1034: if ($name eq 'anonymous'
1035: && !defined($domain)) {
1036: return;
1037: }
1038:
1.333 albertel 1039: if ($env{'request.state'} eq 'construct'
1040: || $symb eq ''
1041: || $Apache::lonhomework::type eq 'practice') {
1042:
1043: my $namespace = $symb || $env{'request.uri'};
1.551 damieng 1044: if ($env{'form.resetdata'} eq 'reset_submissions' ||
1045: ($env{'form.resetdata'} eq 'new_problem_variation'
1.374 albertel 1046: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 1047: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1048: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
1049: &Apache::lonxml::debug("Attempt reset");
1050: }
1.159 albertel 1051: %Apache::lonhomework::history=
1.333 albertel 1052: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.526 raeburn 1053: my ($temp)=keys(%Apache::lonhomework::history) ;
1.159 albertel 1054: &Apache::lonxml::debug("Return message of $temp");
1055: } else {
1056: %Apache::lonhomework::history=
1057: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1058: }
1.353 albertel 1059:
1.159 albertel 1060: #ignore error conditions
1.526 raeburn 1061: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1062: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 1063: }
1064:
1.435 jms 1065: =pod
1066:
1067: =item finalize_storage()
1068:
1.524 raeburn 1069: Stores away the result hash to a student's environment;
1.523 raeburn 1070: checks form.grade_ for specific values, otherwise stores
1071: to the running user's environment.
1.524 raeburn 1072:
1073: &check_correctness_changes() is called in two circumstances
1074: in which the results hash is to be stored permanently, for
1075: grading triggered by a student's submission, where feedback on
1076: correctness is to be provided to the student.
1077:
1078: 1. Immediately prior to storing the results hash
1079:
1080: To handle the case where a student's submission (and award) were
1081: stored after history was retrieved in &initialize_storage(), e.g.,
1082: if a student submitted answers in quick succession (e.g., from
1083: multiple tabs). &Apache::inputtags::hidealldata() is called for
1084: any parts with out-of-order storage (i.e., correct then incorrect,
1085: where awarded >= 1 when correct).
1086:
1087: 2. Immediately after storing the results hash
1088:
1089: To handle the case where lond on the student's homeserver returns
1090: delay:N -- where N is the number of transactions between the last
1091: retrieved in &initialize_storage() and the last stored immediately
1092: before permanent storage of the current transaction via
1093: lond::store_handler(). &Apache::grades::makehidden() is called
1094: for any parts with out-of-order storage (i.e., correct then incorrect,
1095: where awarded >= 1 when correct).
1096:
1097: Will call &store_aggregates() to increment totals for attempts,
1098: students, and corrects, if running user has student role.
1099:
1.435 jms 1100: =cut
1101:
1102:
1.65 albertel 1103: sub finalize_storage {
1.357 albertel 1104: my ($given_symb) = @_;
1.159 albertel 1105: my $result;
1.289 albertel 1106: if (%Apache::lonhomework::results) {
1.323 albertel 1107: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
1108: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 1109: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1110: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 1111: if ($env{'request.state'} eq 'construct'
1112: || $symb eq ''
1113: || $Apache::lonhomework::type eq 'practice') {
1114: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 1115: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 1116: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 1117: $namespace,'',$domain,$name);
1.159 albertel 1118: &Apache::lonxml::debug('Construct Store return message:'.$result);
1119: } else {
1.524 raeburn 1120: my ($laststore,$checkedparts,@parts,%postcorrect);
1121: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1122: (!$Apache::lonhomework::scantronmode) && (!defined($env{'form.grade_symb'})) &&
1123: (!defined($env{'form.grade_courseid'}))) {
1124: if ($Apache::lonhomework::history{'version'}) {
1125: $laststore = $Apache::lonhomework::history{'version'}.'='.
1126: $Apache::lonhomework::history{'timestamp'};
1127: } else {
1128: $laststore = '0=0';
1129: }
1130: my %record = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1131: if ($record{'version'}) {
1132: my ($newversion,$oldversion,$oldtimestamp);
1133: if ($Apache::lonhomework::history{'version'}) {
1134: $oldversion = $Apache::lonhomework::history{'version'};
1135: $oldtimestamp = $Apache::lonhomework::history{'timestamp'};
1136: } else {
1137: $oldversion = 0;
1138: $oldtimestamp = 0;
1139: }
1140: if ($record{'version'} > $oldversion) {
1141: if ($record{'timestamp'} >= $oldtimestamp) {
1142: $laststore = $record{'version'}.'='.$record{'timestamp'};
1143: $newversion = $record{'version'} + 1;
1144: $checkedparts = 1;
1145: foreach my $key (keys(%Apache::lonhomework::results)) {
1146: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1147: my $part = $1;
1148: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1149: push(@parts,$part);
1150: }
1151: }
1152: }
1153: if (@parts) {
1154: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1155: \%record,\@parts,$newversion,
1156: $oldversion);
1157: if (@parts_to_hide) {
1158: foreach my $part (@parts_to_hide) {
1159: $postcorrect{$part} = 1;
1160: &Apache::inputtags::hidealldata($part);
1161: }
1162: }
1163: }
1164: }
1165: }
1166: }
1167: }
1.159 albertel 1168: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
1.524 raeburn 1169: $symb,$courseid,$domain,$name,$laststore);
1170: if ($result =~ /^delay\:(\d+)$/) {
1171: my $numtrans = $1;
1172: my ($oldversion) = split(/=/,$laststore);
1173: if ($numtrans) {
1174: my $newversion = $oldversion + 1 + $numtrans;
1175: my @possparts;
1176: if ($checkedparts) {
1177: foreach my $part (@parts) {
1178: unless ($postcorrect{$part}) {
1179: push(@possparts,$part);
1180: }
1181: }
1182: } else {
1183: foreach my $key (keys(%Apache::lonhomework::results)) {
1184: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1185: my $part = $1;
1186: unless ($postcorrect{$part}) {
1187: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1188: push(@possparts,$part);
1189: }
1190: }
1191: }
1192: }
1193: }
1194: if (@possparts) {
1195: my %newrecord = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1196: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1197: \%newrecord,\@possparts,$newversion,
1198: $oldversion);
1199: if (@parts_to_hide) {
1200: my $partslist = join(',',@parts_to_hide);
1201: &Apache::grades::makehidden($newversion,$partslist,\%newrecord,$symb,$domain,$name,1);
1202: }
1203: }
1204: }
1205: }
1.159 albertel 1206: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 1207: &store_aggregates($symb,$courseid);
1.159 albertel 1208: }
1.323 albertel 1209: } else {
1210: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 1211: }
1.159 albertel 1212: return $result;
1.65 albertel 1213: }
1214:
1.435 jms 1215: =pod
1216:
1.524 raeburn 1217: =item check_correctness_changes()
1218:
1219: For all parts for which current results contain a solved status
1220: of "incorrect_attempted", check if there was a transaction in which
1221: solved was set to "correct_by_student" in the time since the last
1222: transaction (retrieved when &initialize_storage() was called i.e.,
1223: when &start_problem() was called), unless:
1224: (a) questiontype parameter is set to survey or anonymous survey (+/- credit)
1225: (b) problemstatus is set to no or no_feedback_ever
1226: If such a transaction exists, and did not occur after "reset status"
1227: by a user with grading privileges, then the current transaction is an
1228: example of an out-of-order transaction (i.e., incorrect occurring after
1229: correct). Accordingly, the current transaction should be hidden.
1230:
1231: =cut
1232:
1233:
1234: sub check_correctness_changes {
1235: my ($symb,$courseid,$domain,$name,$record,$parts,$newversion,$oldversion) = @_;
1236: my @parts_to_hide;
1237: unless ((ref($record) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
1238: return @parts_to_hide;
1239: }
1240: if (@{$parts}) {
1241: my $usec;
1242: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1243: ($env{'request.course.id'} eq $courseid)) {
1244: $usec = $env{'request.course.sec'};
1245: } else {
1246: $usec = &Apache::lonnet::getsection($domain,$name,$courseid);
1247: }
1248: foreach my $id (@{$parts}) {
1249: next if (($Apache::lonhomework::results{'resource.'.$id.'.type'} =~ /survey/) ||
1250: (&Apache::lonnet::EXT("resource.$id.problemstatus",$symb,
1251: $domain,$name,$usec,undef,$courseid) =~ /^no/));
1252: my $reset;
1253: for (my $i=$newversion-1; $i>=$oldversion; $i--) {
1254: if (($record->{$i.':resource.'.$id.'.regrader'}) &&
1255: ($record->{$i.':resource.'.$id.'.tries'} eq '') &&
1256: ($record->{$i.':resource.'.$id.'.award'} eq '')) {
1257: $reset = 1;
1258: } elsif (($record->{$i.":resource.$id.solved"} eq 'correct_by_student') &&
1259: ($record->{$i.":resource.$id.awarded"} >= 1)) {
1260: unless ($reset) {
1261: push(@parts_to_hide,$id);
1262: last;
1263: }
1264: }
1265: }
1266: }
1267: }
1268: return @parts_to_hide;
1269: }
1270:
1271: =pod
1272:
1.435 jms 1273: item store_aggregates()
1274:
1275: Sends hash of values to be incremented in nohist_resourcetracker.db
1276: for the course. Increments total number of attempts, unique students
1277: and corrects for each part for an instance of a problem, as appropriate.
1278:
1279: =cut
1280:
1.285 raeburn 1281: sub store_aggregates {
1282: my ($symb,$courseid) = @_;
1.479 raeburn 1283: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 1284: my @parts;
1.288 albertel 1285: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
1286: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 1287: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 1288: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 1289: push(@parts, $1);
1.285 raeburn 1290: }
1291: }
1.286 albertel 1292: foreach my $part (@parts) {
1.470 raeburn 1293: if ($env{'request.role'} =~/^st/) {
1294: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
1295: eq 'APPROX_ANS' ||
1296: $Apache::lonhomework::results{'resource.'.$part.'.award'}
1297: eq 'EXACT_ANS') {
1298: $aggregate{$symb."\0".$part."\0correct"} = 1;
1299: }
1300: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1301: $aggregate{$symb."\0".$part."\0users"} = 1;
1302: } else {
1303: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1304: if ($last_reset) {
1305: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1306: $aggregate{$symb."\0".$part."\0users"} = 1;
1307: }
1308: }
1309: }
1310: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 1311: }
1.470 raeburn 1312: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 1313: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
1314: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
1315: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
1316: $randtrycounter{$symb."\0".$part} = 1;
1317: } else {
1318: $anoncounter{$symb."\0".$part} = 1;
1319: }
1.545 raeburn 1320: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}.'::'};
1.537 raeburn 1321: if ($needsrelease) {
1.470 raeburn 1322: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
1323: if ($curr_required eq '') {
1.471 raeburn 1324: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1325: } else {
1326: my ($currmajor,$currminor) = split(/\./,$curr_required);
1327: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
1328: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 1329: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1330: }
1.292 raeburn 1331: }
1332: }
1.285 raeburn 1333: }
1334: }
1.526 raeburn 1335: if (keys(%aggregate) > 0) {
1.289 albertel 1336: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 1337: $cdomain,$cname);
1338: }
1.472 raeburn 1339: if (keys(%anoncounter) > 0) {
1.481 raeburn 1340: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
1341: $cdomain,$cname);
1.472 raeburn 1342: }
1.479 raeburn 1343: if (keys(%randtrycounter) > 0) {
1.481 raeburn 1344: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
1345: $cdomain,$cname);
1.479 raeburn 1346: }
1.292 raeburn 1347: }
1.289 albertel 1348:
1.65 albertel 1349: sub checkout_msg {
1.211 albertel 1350: my %lt=&Apache::lonlocal::texthash(
1351: 'resource'=>'The resource needs to be checked out',
1352: '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.',
1353: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
1.509 bisitz 1354: 'checkout'=>'Check out Bubblesheet Exam for Viewing',
1355: 'checkout?'=>'Check out Bubblesheet Exam?');
1.352 albertel 1356: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 1357: return (<<ENDCHECKOUT);
1.211 albertel 1358: <h2>$lt{'resource'}</h2>
1359: <p>$lt{'id_expln'}</p>
1.449 bisitz 1360: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 1361: <form name="checkout" method="post" action="$uri">
1.91 albertel 1362: <input type="hidden" name="doescheckout" value="yes" />
1.514 bisitz 1363: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onclick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 1364: </form>
1365: ENDCHECKOUT
1366: }
1367:
1.252 albertel 1368: sub firstaccess_msg {
1.253 albertel 1369: my ($time,$symb)=@_;
1.414 albertel 1370: my $result;
1371: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1372: if ($interval[1] eq 'map') {
1373: my ($map)=&Apache::lonnet::decode_symb($symb);
1374: my $foldertitle=&Apache::lonnet::gettitle($map);
1375:
1376: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 1377: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
1378: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1379: ,$foldertitle,$time)."</p>";
1.414 albertel 1380: } elsif ($interval[1] eq 'course') {
1381: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 1382: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 1383: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 1384: ,$course,$time)."</p>";
1.414 albertel 1385: } else {
1386: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1387: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1388: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1389: ,$title,$time)."</p>";
1.414 albertel 1390: }
1.352 albertel 1391: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1392: my $buttontext = &mt('Show Resource');
1393: my $timertext = &mt('Start Timer?');
1.414 albertel 1394: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1395: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1396: <input type="hidden" name="markaccess" value="yes" />
1.514 bisitz 1397: <input type="button" name="accessbutton" value="$buttontext" onclick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1398: </form>
1399: ENDCHECKOUT
1.414 albertel 1400: return $result;
1.252 albertel 1401: }
1402:
1.204 albertel 1403: sub init_problem_globals {
1404: my ($type)=@_;
1405: #initialize globals
1.308 foxr 1406: # For problems, we start out in part 0 (outside a <part> tag).
1407: # and part 0 is used to describe the main body of the <problem>
1408: #
1.204 albertel 1409: if ($type eq 'problem') {
1410: $Apache::inputtags::part='0';
1411: @Apache::inputtags::partlist=('0');
1.405 albertel 1412: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1413: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1414:
1.266 albertel 1415: } elsif ($type eq 'library') {
1.204 albertel 1416: $Apache::inputtags::part='';
1417: @Apache::inputtags::partlist=();
1.405 albertel 1418: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1419: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1420:
1.304 albertel 1421: } elsif ($type eq 'Task') {
1422: $Apache::inputtags::part='0';
1423: @Apache::inputtags::partlist=('0');
1.405 albertel 1424: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1425: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1426: }
1.477 www 1427: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1428: @Apache::inputtags::responselist = ();
1429: @Apache::inputtags::importlist = ();
1430: @Apache::inputtags::previous=();
1431: @Apache::inputtags::previous_version=();
1.536 raeburn 1432: $Apache::inputtags::leniency='';
1.204 albertel 1433: $Apache::structuretags::printanswer='No';
1434: @Apache::structuretags::whileconds=();
1435: @Apache::structuretags::whilebody=();
1436: @Apache::structuretags::whileline=();
1437: $Apache::lonhomework::scantronmode=0;
1438: undef($Apache::lonhomework::name);
1.358 albertel 1439: undef($Apache::lonhomework::default_type);
1440: undef($Apache::lonhomework::type);
1.204 albertel 1441: }
1442:
1443: sub reset_problem_globals {
1444: my ($type)=@_;
1445: undef(%Apache::lonhomework::history);
1446: undef(%Apache::lonhomework::results);
1447: undef($Apache::inputtags::part);
1.536 raeburn 1448: undef($Apache::inputtags::leniency);
1.498 raeburn 1449: if ($type eq 'Task') {
1450: undef($Apache::inputtags::slot_name);
1.528 raeburn 1451: } elsif ($type eq 'problem') {
1452: undef($Apache::lonhomework::rawrndseed);
1.498 raeburn 1453: }
1.208 albertel 1454: #don't undef this, lonhomework.pm takes care of this, we use this to
1455: #detect if we try to do 2 problems in one file
1456: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1457: undef($Apache::lonhomework::name);
1.358 albertel 1458: undef($Apache::lonhomework::default_type);
1459: undef($Apache::lonhomework::type);
1460: undef($Apache::lonhomework::scantronmode);
1461: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1462: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1463: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1464: }
1465:
1.241 albertel 1466: sub set_problem_state {
1.240 albertel 1467: my ($part)=@_;
1.284 albertel 1468: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1469: $Apache::lonhomework::history{"resource.$part.solved"}=
1470: 'correct_by_student';
1471: }
1472: }
1473:
1.241 albertel 1474: sub get_problem_status {
1475: my ($part)=@_;
1.267 albertel 1476: my $problem_status;
1.284 albertel 1477: if ($env{'request.state'} eq 'construct' &&
1478: defined($env{'form.problemstatus'})) {
1479: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1480: } else {
1481: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1482: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1483: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1484: }
1485: return $problem_status;
1486: }
1487:
1.9 albertel 1488: sub start_problem {
1.326 albertel 1489: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1490:
1.311 foxr 1491: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1492: if (!$Apache::lonxml::metamode) {
1493: &Apache::lonxml::startredirection();
1494: }
1.311 foxr 1495:
1.308 foxr 1496: # Problems don't nest and we don't allow more than one <problem> in
1497: # a .problem file.
1498: #
1.184 albertel 1499: if ( $Apache::inputtags::part ne '' ||
1500: $Apache::lonhomework::parsing_a_problem) {
1501: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1502: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1503: return '';
1504: }
1.184 albertel 1505:
1506: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1507: &init_problem_globals('problem');
1.166 albertel 1508:
1.284 albertel 1509: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1510: $Apache::lonhomework::scantronmode=1;
1511: }
1.161 albertel 1512:
1.159 albertel 1513: if ($target ne 'analyze') {
1.415 raeburn 1514: my $type = &Apache::lonnet::EXT('resource.0.type');
1515: $Apache::lonhomework::type=$type;
1.284 albertel 1516: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1517: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1518: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1519: }
1.332 albertel 1520: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1521: }
1.164 albertel 1522: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1523: my $uri=$env{'request.uri'};
1.159 albertel 1524: if ($uri=~/\.(\w+)$/) {
1525: $Apache::lonhomework::type=$1;
1526: &Apache::lonxml::debug("Using type of $1");
1527: } else {
1528: $Apache::lonhomework::type='problem';
1529: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1530: }
1.87 albertel 1531: }
1.301 albertel 1532: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1533:
1.363 albertel 1534: &initialize_storage();
1.389 albertel 1535: if ($target ne 'analyze'
1536: && $env{'request.state'} eq 'construct') {
1537: &set_problem_state('0');
1538: }
1539:
1.366 albertel 1540: if ($target eq 'web') {
1541: &Apache::lonxml::debug(" grading history ");
1542: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1543: }
1.363 albertel 1544:
1.159 albertel 1545: #added vars to the scripting enviroment
1.213 albertel 1546: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1547: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1548: &Apache::run::run($expression,$safeeval);
1.159 albertel 1549: my $status;
1550: my $accessmsg;
1.508 raeburn 1551: my $resource_due;
1.540 raeburn 1552: my $ipused;
1.159 albertel 1553:
1.343 albertel 1554: my $name= &get_resource_name($parstack,$safeeval);
1.528 raeburn 1555: my ($result,$form_tag_start,$slot_name,$slot,$probpartlist);
1.506 raeburn 1556:
1557: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1558: $target eq 'tex') {
1559: if ($env{'form.markaccess'}) {
1560: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1.539 raeburn 1561: my ($timelimit) = split(/_/,$interval[0]);
1562: &Apache::lonnet::set_first_access($interval[1],$timelimit);
1.506 raeburn 1563: }
1564: }
1565:
1.354 albertel 1566: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1567: || $target eq 'edit') {
1.528 raeburn 1568: ($result,$form_tag_start,$probpartlist) =
1.350 albertel 1569: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1570: $name);
1.552 raeburn 1571: } elsif ((($target eq 'grade') && ($Apache::lonhomework::type eq 'randomizetry')) ||
1572: ($target eq 'answer')) {
1.528 raeburn 1573: my ($symb)= &Apache::lonnet::whichuser();
1574: my $navmap = Apache::lonnavmaps::navmap->new();
1575: if (ref($navmap)) {
1576: my $res = $navmap->getBySymb($symb);
1577: if (ref($res)) {
1578: $probpartlist = $res->parts();
1579: }
1580: }
1.350 albertel 1581: }
1582:
1.552 raeburn 1583: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1584: $target eq 'tex') {
1585:
1586: my ($symb)= &Apache::lonnet::whichuser();
1587: ($status,$accessmsg,$slot_name,$slot,$ipused) =
1588: &Apache::lonhomework::check_slot_access('0','problem',$symb,$probpartlist);
1589: push (@Apache::inputtags::status,$status);
1590: }
1591:
1.284 albertel 1592: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1593:
1.479 raeburn 1594: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1595: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1596: $target eq 'tex') {
1.479 raeburn 1597:
1.159 albertel 1598: #handle rand seed in construction space
1.528 raeburn 1599: my $rndseed=&setup_rndseed($safeeval,$target,$probpartlist);
1600: if (($target eq 'grade') && &Apache::response::submitted()) {
1601: if ($Apache::lonhomework::type eq 'randomizetry') {
1.529 raeburn 1602: $Apache::lonhomework::results{'resource.0.rndseed'}=$rndseed;
1.528 raeburn 1603: } else {
1604: my @parts;
1605: if (ref($probpartlist) eq 'ARRAY') {
1606: @parts = @{$probpartlist};
1607: }
1608: unless (@parts) {
1.529 raeburn 1609: $Apache::lonhomework::results{'resource.0.rndseed'}=$Apache::lonhomework::rawrndseed;
1.528 raeburn 1610: }
1611: }
1612: }
1.367 albertel 1613: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 1614:
1.333 albertel 1615: if ($env{'request.state'} ne "construct" &&
1616: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1617: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1618: $rndseed.'" />'.
1.551 damieng 1619: '<button type="submit" name="resetdata"
1620: value="new_problem_variation">'.&mt('New Problem Variation').'</button>';
1.334 albertel 1621: if (exists($env{'form.username'})) {
1622: $form_tag_start.=
1.164 albertel 1623: '<input type="hidden" name="username"
1.284 albertel 1624: value="'.$env{'form.username'}.'" />';
1.334 albertel 1625: }
1.462 raeburn 1626: if ($env{'request.role.adv'}) {
1627: $form_tag_start.= ' <label class="LC_nobreak">'
1628: .'<input type="checkbox" name="showallfoils"';
1629: if (defined($env{'form.showallfoils'})) {
1630: $form_tag_start.=' checked="checked"';
1631: }
1632: $form_tag_start.= ' /> '
1633: .&mt('Show All Foils')
1634: .'</label>';
1635: }
1.417 www 1636: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1637: $form_tag_start.=&practice_problem_header();
1.417 www 1638: }
1.462 raeburn 1639: $form_tag_start.='<hr />';
1.479 raeburn 1640: } elsif (($env{'request.state'} ne "construct") &&
1641: ($Apache::lonhomework::type eq 'randomizetry') &&
1.546 raeburn 1642: ($status eq 'CAN_ANSWER') &&
1.549 raeburn 1643: ($env{'course.'.$env{'request.course.id'}.'.type'} ne 'Placement') &&
1644: (!$env{'request.role.adv'})) {
1645: # "New Problem Variation Each Try" header suppressed for Placement Tests, unless course personnel.
1.479 raeburn 1646: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1647: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1648: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1649: }
1.324 albertel 1650:
1.159 albertel 1651: my $expression='$external::datestatus="'.$status.'";';
1652: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1653: &Apache::run::run($expression,$safeeval);
1654: &Apache::lonxml::debug("Got $status");
1.324 albertel 1655:
1.159 albertel 1656: if (( $status eq 'CLOSED' ) ||
1657: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1658: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1659: ( $status eq 'BANNED') ||
1.216 albertel 1660: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1661: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1662: ( $status eq 'NOTRESERVABLE') ||
1663: ( $status eq 'RESERVABLE') ||
1664: ( $status eq 'RESERVABLE_LATER') ||
1.540 raeburn 1665: ( $status eq 'INVALID_ACCESS') ||
1666: ( $status eq 'NEED_DIFFERENT_IP')) {
1.326 albertel 1667: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1668: $style);
1.159 albertel 1669: if ( $target eq "web" ) {
1.343 albertel 1670: my $msg;
1.159 albertel 1671: if ($status eq 'UNAVAILABLE') {
1.504 golterma 1672: $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 1673: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.504 golterma 1674: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1.499 raeburn 1675: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1676: ($status eq 'NOTRESERVABLE')) {
1.504 golterma 1677: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1.253 albertel 1678: } elsif ($status ne 'NOT_YET_VIEWED') {
1.504 golterma 1679: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1.499 raeburn 1680: }
1.216 albertel 1681: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1682: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1683: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1684: $msg.=&checkout_msg();
1.252 albertel 1685: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1686: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1687: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1688: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.499 raeburn 1689: } elsif ($status eq 'RESERVABLE') {
1690: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1691: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1692: '<br />'.
1693: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1694: } elsif ($status eq 'RESERVABLE_LATER') {
1695: $msg.=&mt('Window to make a reservation will open [_1].',
1696: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1697: } elsif ($status eq 'NOTRESERVABLE') {
1698: $msg.=&mt('Not available to make a reservation.');
1.540 raeburn 1699: } elsif ($status eq 'NEED_DIFFERENT_IP') {
1700: if ($ipused) {
1701: $msg.=&mt('You must use the same computer ([_1]) you used when you first accessed this resource using your time/place-based reservation.',"IP: $ipused");
1702: } else {
1703: $msg.=&mt('Each student must use a different computer to access this resource at this time and/or place.').'<br />'.
1704: &mt('Somebody else has already used this particular computer for that purpose.');
1705: }
1706: }
1.159 albertel 1707: $result.=$msg.'<br />';
1708: } elsif ($target eq 'tex') {
1.332 albertel 1709: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1710: : '\begin{minipage}{\textwidth}';
1.443 foxr 1711: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1712: $startminipage.'\vskip 0 mm';
1.159 albertel 1713: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1714: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1715: } else {
1.211 albertel 1716: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1717: }
1718: }
1.324 albertel 1719: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1720: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1721: $style);
1.324 albertel 1722: if ($target eq 'web') {
1.375 albertel 1723: $result .=
1724: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1725: } elsif ($target eq 'grade') {
1.540 raeburn 1726: my $checkinresult = &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1727: 'problem');
1728: if ($checkinresult = /^error:/) {
1729: $result .= 'error';
1730: }
1.324 albertel 1731: }
1.159 albertel 1732: } elsif ($target eq 'web') {
1.508 raeburn 1733: if ($status eq 'CAN_ANSWER') {
1734: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1735: if ($slot_name ne '') {
1736: my $checked_in =
1737: $Apache::lonhomework::history{'resource.0.checkedin'};
1738: if ($checked_in eq '') {
1739: # unproctored slot access, self checkin
1.540 raeburn 1740: my $needsiptied;
1741: if (ref($slot)) {
1742: $needsiptied = $slot->{'iptied'};
1743: }
1744: my $check = &Apache::bridgetask::check_in('problem',undef,undef,
1745: $slot_name,$needsiptied);
1746: if ($check =~ /^error: /) {
1747: &Apache::lonnet::logthis("Error during self-checkin of problem (symb: $env{'request.symb'}) using slot: $slot_name");
1748: } else {
1749: $checked_in =
1750: $Apache::lonhomework::results{"resource.0.checkedin"};
1751: }
1.508 raeburn 1752: }
1753: if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1754: if ($slot->{'starttime'} < time()) {
1755: if (!$resource_due) {
1756: $resource_due = $slot->{'endtime'};
1757: } elsif ($slot->{'endtime'} < $resource_due) {
1758: $resource_due = $slot->{'endtime'};
1759: }
1760: }
1761: }
1762: }
1763: if ($resource_due) {
1764: my $time_left = $resource_due - time();
1765: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1766: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1767: }
1768: }
1769: }
1.368 albertel 1770: $result.="\n $form_tag_start \t".
1.227 albertel 1771: '<input type="hidden" name="submitted" value="yes" />';
1772: # create a page header and exit
1.284 albertel 1773: if ($env{'request.state'} eq "construct") {
1.544 damieng 1774: if ($env{'form.inhibitmenu'} eq 'yes') {
1775: # error messages can be useful in any case
1776: $result.= &Apache::lonxml::message_location();
1777: } else {
1.542 raeburn 1778: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1779: }
1.428 raeburn 1780: if ($Apache::lonhomework::type eq 'practice') {
1.551 damieng 1781: $result.= '<button type="submit" name="resetdata" '.
1782: 'value="new_problem_variation">'.&mt('New Problem Variation').'</button>'.
1783: &practice_problem_header().'<hr />';
1.428 raeburn 1784: }
1.227 albertel 1785: }
1786: # if we are viewing someone else preserve that info
1.284 albertel 1787: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1788: foreach my $field ('symb','courseid','domain','username') {
1789: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1790: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1791: }
1.479 raeburn 1792: foreach my $field ('trial','questiontype') {
1793: if ($env{"form.grade_$field"} ne '') {
1794: $result .= '<input type="hidden" name="grade_'.$field.
1795: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1796: }
1797: }
1.159 albertel 1798: }
1.490 raeburn 1799: if ($env{'form.grade_imsexport'}) {
1800: $result = '';
1801: }
1.159 albertel 1802: } elsif ($target eq 'tex') {
1.319 foxr 1803: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 1804: $result .= &select_metadata_hyphenation();
1805:
1.319 foxr 1806:
1.99 sakharuk 1807: }
1.159 albertel 1808: } elsif ($target eq 'edit') {
1.343 albertel 1809: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1810: $Apache::lonxml::warnings_error_header=
1811: &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 1812: my $temp=&Apache::edit::insertlist($target,$token);
1813: $result.=$temp;
1814: } elsif ($target eq 'modified') {
1815: $result=$token->[4];
1816: } else {
1817: # page_start returned a starting result, delete it if we don't need it
1818: $result = '';
1.99 sakharuk 1819: }
1.159 albertel 1820: return $result;
1.9 albertel 1821: }
1822:
1823: sub end_problem {
1.159 albertel 1824: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1825: my $result;
1.310 foxr 1826:
1.321 albertel 1827: if (!$Apache::lonxml::metamode) {
1828: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1829: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1830: }
1.319 foxr 1831:
1832: if ($target eq 'tex') {
1.321 albertel 1833: # Figure out the front matter and replace the
1834: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1835: # this in end_problem because whether or not we display due
1836: # dates depends on whether due dates have already been
1837: # displayed in the problem parts.
1838:
1.319 foxr 1839: my $frontmatter = '';
1840: my $startminipage = '';
1841: if (not $env{'form.problem_split'}=~/yes/) {
1842: $startminipage = '\begin{minipage}{\textwidth}';
1843: }
1844: my $id = $Apache::inputtags::part;
1845: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1846: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.526 raeburn 1847: my @packages = split(/,/,$packages);
1.319 foxr 1848: my $allow_print_points = 0;
1849: foreach my $partial_key (@packages) {
1850: if ($partial_key=~m/^part_0$/) {
1851: $allow_print_points=1;
1852: }
1853: }
1854: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1855: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1856: if (lc($env{'course.'.$env{'request.course.id'}.
1857: '.disableexampointprint'}) eq 'yes') {
1858: $allow_print_points=0;
1859: }
1860: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1861: 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 1862: &clear_required_languages();
1.319 foxr 1863: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1864: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1865:
1866: # Figure out what the due date is and if we need to print
1867: # it in the problem header. We have been logging the
1868: # last due date written to file.
1869:
1870: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1871: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1872: my $duedate_text = &mt('Due date: [_1]'
1873: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1874: my $temp_file;
1875: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1876:
1877: # Figure out what the last printed due date is or set it
1878: # to the epoch if no duedates have been printed.
1879:
1880: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1881: if (-e $filename) {
1882: $temp_file = Apache::File->new($filename);
1883: my @due_file = <$temp_file>;
1884: $due_file_content = $due_file[$#due_file];
1885: chomp $due_file_content;
1886: }
1887:
1888: # We display the due date iff it is not the same as the last
1889: # duedate in problem header ($due_file_content), and
1890: # none of our parts displayed a duedate.
1891: #
1892: my $parts_with_displayduedate;
1893: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1894: $parts_with_displayduedate =
1895: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1896: } else {
1897: $parts_with_displayduedate = 0;
1898: }
1899: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1900: $temp_file = Apache::File->new('>'.$filename);
1901: print $temp_file "$duetime\n";
1902: if (not $env{'request.symb'} =~ m/\.page_/) {
1903: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1904: $frontmatter .= $begin_doc.
1.448 bisitz 1905: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1906: } else {
1907: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1908: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1909: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1910: }
1.319 foxr 1911: }
1912: } else {
1.448 bisitz 1913: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1914: }
1915: } else {
1916: if (not $env{'request.symb'} =~ m/\.page_/) {
1917: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1918: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1919: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1920: }
1.319 foxr 1921: } else {
1.381 albertel 1922: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1923: }
1924: }
1925: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1926: }
1927:
1.159 albertel 1928: my $status=$Apache::inputtags::status['-1'];
1929: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1930: $target eq 'tex') {
1.249 albertel 1931: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1932: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1933: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1934: &Apache::inputtags::grade;
1.324 albertel 1935: } elsif ($status eq 'NEEDS_CHECKIN') {
1936: # no need to grade, and don't want to hide data
1.249 albertel 1937: } else {
1938: # move any submission data to .hidden
1939: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1940: }
1.159 albertel 1941: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1942: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1943: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1944: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1945: # if part is zero, no <part>s existed, so we need show the current
1946: # grading status
1947: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1948: $result.= $gradestatus;
1949: }
1950: if (
1.284 albertel 1951: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1952: ($target eq 'answer') || ($target eq 'tex')
1953: ) {
1.490 raeburn 1954: if (($target ne 'tex') &&
1955: ($env{'form.answer_output_mode'} ne 'tex') &&
1956: (!$env{'form.grade_imsexport'})) {
1.254 www 1957: $result.="</form>";
1.159 albertel 1958: }
1959: if ($target eq 'web') {
1.507 raeburn 1960: #
1961: # Closing </body></html> not added by end_page().
1962: # Added separately at end of this routine, after added
1963: # <script></script> so document will be valid xhtml.
1964: #
1.546 raeburn 1965: my $showdisc = 1;
1.547 raeburn 1966: if (($env{'course.'.$env{'request.course.id'}.'.type'} eq 'Placement') &&
1967: (!$env{'request.role.adv'})) {
1968: # For Placement Tests footer with "Post Discussion" and "Send Feedback" links is suppressed.
1.546 raeburn 1969: $showdisc = 0;
1.547 raeburn 1970: my ($symb)= &Apache::lonnet::whichuser();
1971: if ($symb) {
1972: my $navmap = Apache::lonnavmaps::navmap->new();
1973: if (ref($navmap)) {
1974: my $hastries = &Apache::lonplacementtest::has_tries($symb,$navmap);
1975: # For Placement Tests test status is displayed if this is the last resource in the course
1.549 raeburn 1976: # and there are no tries left
1.547 raeburn 1977: unless ($hastries) {
1978: if (&Apache::lonplacementtest::is_lastres($symb,$navmap)) {
1979: my ($score,$incomplete) =
1980: &Apache::lonplacementtest::check_completion(undef,undef,1);
1981: if (!$incomplete) {
1982: $result .= &Apache::lonplacementtest::showresult(1,1);
1983: } elsif ($incomplete < 100) {
1984: $result.= &Apache::lonplacementtest::showincomplete($incomplete,1);
1985: }
1986: } else {
1987: # For Placement Tests score is displayed if test has just been completed
1988: my ($score,$incomplete) = &Apache::lonplacementtest::check_completion(undef,undef,1);
1989: if (!$incomplete) {
1990: $result.= &Apache::lonplacementtest::showresult(1,1);
1991: }
1992: }
1993: }
1994: }
1995: }
1.546 raeburn 1996: }
1997: $result.= &Apache::loncommon::end_page({'discussion' => $showdisc,
1.507 raeburn 1998: 'notbody' => 1});
1.159 albertel 1999: } elsif ($target eq 'tex') {
1.178 sakharuk 2000: my $endminipage = '';
1.284 albertel 2001: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 2002: $endminipage = '\end{minipage}';
2003: }
1.284 albertel 2004: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 2005: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 2006: } else {
1.262 sakharuk 2007: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 2008: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 2009: $result .= $endminipage.'\end{document} ';
2010: } else {
1.382 albertel 2011: $result .= $endminipage;
1.262 sakharuk 2012: }
1.159 albertel 2013: }
2014: }
2015: }
1.476 www 2016: if ($target eq 'web') {
2017: $result.=&Apache::functionplotresponse::init_script();
2018: }
1.159 albertel 2019: if ($target eq 'grade') {
2020: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
2021: &finalize_storage();
2022: }
1.284 albertel 2023: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
2024: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 2025: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 2026: # normally we get it from above, but in CSTR
1.172 albertel 2027: # we always show answer mode too.
1.159 albertel 2028: }
2029: } elsif ($target eq 'meta') {
2030: if ($Apache::inputtags::part eq '0') {
1.179 albertel 2031: @Apache::inputtags::response=();
1.159 albertel 2032: $result=&Apache::response::mandatory_part_meta;
2033: }
1.215 albertel 2034: $result.=&Apache::response::meta_part_order();
1.258 albertel 2035: $result.=&Apache::response::meta_response_order();
1.159 albertel 2036: } elsif ($target eq 'edit') {
2037: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 2038: $result .= &problem_edit_footer();
1.320 albertel 2039: } elsif ($target eq 'modified') {
2040: $result .= $token->[2];
1.159 albertel 2041: }
1.155 albertel 2042:
1.284 albertel 2043: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 2044: &Apache::inputtags::check_for_duplicate_ids();
2045: }
1.204 albertel 2046:
2047: &reset_problem_globals('problem');
1.159 albertel 2048:
1.502 foxr 2049: #
2050: # This shouild be just above the return so that the
2051: # time put in the javascript is as late as possible in the
2052: # computation:
2053: #
2054: if ($target eq 'web') {
2055: $result .= &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 2056: #
2057: # Closing tags delayed so any <script></script> tags
2058: # not in head can appear inside body, for valid xhtml.
2059: #
2060: $result .= "</body>\n</html>";
1.502 foxr 2061: }
1.159 albertel 2062: return $result;
1.48 albertel 2063: }
2064:
1.108 albertel 2065:
1.48 albertel 2066: sub start_library {
1.159 albertel 2067: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 2068: my ($result,$form_tag_start);
1.371 albertel 2069: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 2070: &init_problem_globals('library');
2071: $Apache::lonhomework::type='problem';
2072: }
1.159 albertel 2073: if ($target eq 'edit') {
1.343 albertel 2074: ($result,$form_tag_start)=
2075: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2076: 'Edit');
2077: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 2078: my $temp=&Apache::edit::insertlist($target,$token);
2079: $result.=$temp;
2080: } elsif ($target eq 'modified') {
2081: $result=$token->[4];
1.340 albertel 2082: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 2083: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 2084: && $env{'request.state'} eq "construct" ) {
1.159 albertel 2085: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 2086: ($result,$form_tag_start)=
2087: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
2088: $name);
1.479 raeburn 2089: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 2090: $result.=" \n $form_tag_start".
1.159 albertel 2091: '<input type="hidden" name="submitted" value="yes" />';
2092: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 2093: if ($Apache::lonhomework::type eq 'practice') {
1.551 damieng 2094: $result.= '<button type="submit" name="resetdata" '.
2095: 'value="new_problem_variation">'.&mt('New Problem Variation').'</button>'.
2096: &practice_problem_header().'<hr />';
1.428 raeburn 2097: }
1.159 albertel 2098: }
2099: return $result;
1.48 albertel 2100: }
2101:
2102: sub end_library {
1.159 albertel 2103: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2104: my $result='';
2105: if ($target eq 'edit') {
2106: $result=&problem_edit_footer();
1.371 albertel 2107: } elsif ($target eq 'web'
2108: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
2109: && $env{'request.state'} eq "construct") {
1.349 albertel 2110: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 2111: }
1.371 albertel 2112: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
2113: &reset_problem_globals('library');
2114: }
1.159 albertel 2115: return $result;
1.197 www 2116: }
2117:
2118: sub start_definetag {
1.326 albertel 2119: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 2120:
2121: my $result;
2122:
2123: my $name = $token->[2]->{'name'};
1.326 albertel 2124: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 2125: if ($target eq 'web') {
2126: if ($name=~/^\//) {
2127: $result=
2128: '<br /><table class="LC_sty_end"><tr><th>'.
2129: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2130: } else {
2131: $result=
2132: '<br /><table class="LC_sty_begin"><tr><th>'.
2133: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2134: }
2135: $skip = &HTML::Entities::encode($skip, '<>&"');
2136: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 2137: }
2138: return $result;
2139: }
2140:
2141: sub end_definetag {
2142: return '';
1.1 albertel 2143: }
2144:
2145: sub start_block {
1.201 albertel 2146: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 2147:
2148: my $result;
1.1 albertel 2149:
1.339 albertel 2150: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2151: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 2152: my $code = $token->[2]->{'condition'};
1.385 albertel 2153: if (defined($code) && $code ne '') {
1.137 albertel 2154: if (!$Apache::lonxml::default_homework_loaded) {
2155: &Apache::lonxml::default_homework_load($safeeval);
2156: }
1.131 albertel 2157: $result = &Apache::run::run($code,$safeeval);
2158: &Apache::lonxml::debug("block :$code: returned :$result:");
2159: } else {
2160: $result='1';
2161: }
2162: if ( ! $result ) {
1.201 albertel 2163: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 2164: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2165: }
2166: $result='';
2167: } elsif ($target eq 'edit') {
2168: $result .=&Apache::edit::tag_start($target,$token);
2169: $result .=&Apache::edit::text_arg('Test Condition:','condition',
2170: $token,40);
2171: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2172: } elsif ($target eq 'modified') {
2173: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2174: $safeeval,'condition');
2175: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 2176: }
1.131 albertel 2177: return $result;
1.1 albertel 2178: }
2179:
2180: sub end_block {
1.167 www 2181: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2182: my $result;
2183: if ($target eq "edit") {
2184: $result.= &Apache::edit::tag_end($target,$token,'');
2185: }
2186: return $result;
2187: }
1.500 foxr 2188: #
2189: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
2190: # ...
2191: # </languageblock>
2192: #
2193: # This declares the intent to provide content that can be rendered in the
2194: # set of languages in the include specificatino but not in the exclude
2195: # specification. If a currently preferred language is in the include list
2196: # the content in the <languageblock>...</languageblock> is rendered
2197: # If the currently preferred language is in the exclude list,
2198: # the content in the <languageblock>..></languageblock is not rendered.
2199: #
2200: # Pathalogical case handling:
2201: # - Include specified, without the preferred language but exclude specified
2202: # also without the preferred langauge results in rendering the block.
2203: # - Exclude specified without include and excluden not containing a
2204: # preferred language renders the block.
2205: # - Include and exclude both specifying the preferred language does not
2206: # render the block.
2207: # - If neither include/exclude is specified, the block gets rendered.
2208: #
2209: # This tag has no effect when target is in {edit, modified}
2210: #
1.167 www 2211: sub start_languageblock {
1.201 albertel 2212: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 2213:
1.500 foxr 2214: my $result = '';
1.167 www 2215:
1.339 albertel 2216: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2217: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 2218: my $include = $token->[2]->{'include'};
2219: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 2220: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 2221:
2222: # This should not even happen, since we should at least have the server language
2223:
2224: if (!$preferred_languages[0]) {
2225: $preferred_languages[0]='en';
2226: }
2227:
2228: # Now loop over all languages in order of preference
2229:
2230: my $render;
1.398 www 2231: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 2232:
2233: # If neither include/nor exlude is present the block is going
2234: # to get rendered.
2235:
1.399 www 2236: my $found=0;
1.500 foxr 2237: $render=1;
2238:
2239: # If include is specified, don't render the block
2240: # unless the preferred language is included in the set.
2241:
1.398 www 2242: if ($include) {
1.500 foxr 2243: $render=0;
1.398 www 2244: foreach my $included_language (split(/\,/,$include)) {
2245: if ($included_language eq $preferred_language) {
1.500 foxr 2246: $render=1;
1.399 www 2247: $found=1;
1.500 foxr 2248: last; # Only need to find the first.
1.398 www 2249: }
2250: }
2251: }
1.500 foxr 2252: # Do we have an exclude argument?
2253: # If so, and one of the languages matches a preferred language
2254: # inhibit rendering the block. Note that in the pathalogical case the
2255: # author has specified a preferred language in both the include and exclude
2256: # attribte exclude is preferred.
2257:
1.398 www 2258: if ($exclude) {
1.500 foxr 2259: $render=1;
1.398 www 2260: foreach my $excluded_language (split(/\,/,$exclude)) {
2261: if ($excluded_language eq $preferred_language) {
1.500 foxr 2262: $render=0;
1.399 www 2263: $found=1;
1.500 foxr 2264: last; # Only need to find the first.
1.398 www 2265: }
2266: }
2267: }
1.500 foxr 2268: if ($found) {
2269: last; # Done on any match of include or exclude.
2270: }
1.398 www 2271: }
1.500 foxr 2272: # If $render not true skip the entire block until </languageblock>
2273: #
2274:
2275: if ( ! $render ) {
1.201 albertel 2276: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
2277: $style);
2278: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2279: }
1.500 foxr 2280: # If $render is true, we've not skipped the contents of the <languageglock>
2281: # and the normal loncapa processing flow will render it as a matter of course.
2282:
1.167 www 2283: } elsif ($target eq 'edit') {
2284: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2285: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 2286: $token,40);
1.211 albertel 2287: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 2288: $token,40);
2289: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2290: } elsif ($target eq 'modified') {
2291: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 2292: $safeeval,'include',
2293: 'exclude');
1.167 www 2294: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2295: }
2296: return $result;
2297: }
2298:
2299: sub end_languageblock {
1.170 www 2300: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2301: my $result;
1.201 albertel 2302: if ($target eq "edit") {
1.170 www 2303: $result.= &Apache::edit::tag_end($target,$token,'');
2304: }
2305: return $result;
2306: }
1.500 foxr 2307: # languagblock specific tags:
2308: {
2309: # For chunks of a resource that has translations, this hash contains
2310: # the translations available indexed by language name.
2311: #
2312:
2313: my %available_texts;
1.170 www 2314:
1.500 foxr 2315: # <translated> starts a block of a resource that has multiple translations.
2316: # See the <lang> tag as well.
2317: # When </translated> is encountered if there is a translation for the
2318: # currently preferred language, that is rendered inthe web/tex/webgrade
2319: # targets. Otherwise, the default text is rendered.
2320: #
2321: # Note that <lang> is only registered for the duration of the
2322: # <translated>...</translated> block
2323: #
2324: # Pathalogical case handling:
2325: # - If there is no <lang> that specifies a 'default' and there is no
2326: # translation that matches a preferred language, nothing is rendered.
2327: # - Nested <translated>...</translated> might be linguistically supported by
2328: # XML due to the stack nature of tag registration(?) however the rendered
2329: # output will be incorrect because there is only one %available_texts
2330: # has and end_translated clears it.
2331: # - Material outside of a <lang>...</lang> block within the
2332: # <translated>...<translated> block won't render either e.g.:
2333: # <translated>
2334: # The following will be in your preferred langauge:
2335: # <lang which='en'>
2336: # This section in english
2337: # </lang>
2338: # <lang which='sgeiso'>
2339: # Hier es ist auf Deutsch.
2340: # </lang>
2341: # <lang which='sfriso'>
2342: # En Francais
2343: # </lang>
2344: # </translated>
2345: #
2346: # The introductory text prior to the first <lang> tag is not rendered.
2347: #
1.397 albertel 2348: sub start_translated {
2349: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2350: &Apache::lonxml::register('Apache::structuretags',('lang'));
2351: undef(%available_texts);
2352: }
2353:
2354: sub end_translated {
2355: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2356: my $result;
2357: #show the translation on viewable targets
2358: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
2359: # or non-viewable targets, if it's embedded in something that
2360: # wants the output
2361: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
2362: && &Apache::lonxml::in_redirection() ) ) {
2363: my @possibilities = keys(%available_texts);
2364: my $which =
2365: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 2366: if ($target eq 'tex') {
2367: $result = &select_hyphenation($which);
2368: }
2369: $result .= $available_texts{$which};
2370: if ($target eq 'tex') {
2371: $result .= &select_metadata_hyphenation(); # Restore original language.
2372: }
1.397 albertel 2373: }
2374: undef(%available_texts);
2375: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
2376: return $result;
2377: }
2378:
1.500 foxr 2379: # <lang [which='language-name'] [other='lang1,lang2...']>
2380: # Specifies that the block contained within it is a translation
2381: # for a specific language specified by the 'which' attribute. The
2382: # 'other' attribute can be used by itself or in conjunction with
2383: # which to specify this tag _may_ be used as a translation for some
2384: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
2385: # specifying that the block provides a translation for US (primary)
2386: # Canadian, Australian and UK Englush.
2387: #
2388: # Comment: this seems a bit silly why not just support a list of languages
2389: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
2390: #
2391: # Effect:
2392: # The material within the <lang>..</lang> block is stored in the
2393: # specified set of $available_texts hash entries, the appropriate one
2394: # is selected at </translated> time.
2395: #
2396: # Pathalogical case handling:
2397: # If a language occurs multiple times within a <translated> block,
2398: # only the last one is rendered e.g.:
2399: #
2400: # <translated>
2401: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
2402: # Red green color blindness is quite common affecting about 7.8% of
2403: # the male population, but onloy about .65% of the female population.
2404: # </lang>
2405: # Red green colour blindness is quite common affecting about 7.8% of
2406: # the male population, but onloy about .65% of the female population.
2407: # <lang which='seniso', other='senisoCA,senisoAU'>
2408: # </translated>
2409: #
2410: # renders the correct spelling of color (colour) for people who have specified
2411: # a preferred language that is one of the British Commonwealth languages
2412: # even though those are also listed as valid selections for the US english
2413: # <lang> block.
2414: #
1.397 albertel 2415: sub start_lang {
2416: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2417: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2418: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2419: &Apache::lonxml::startredirection();
2420: }
2421: return '';
2422: }
2423:
2424: sub end_lang {
2425: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2426: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2427: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2428: my $result = &Apache::lonxml::endredirection();
2429: my $which = &Apache::lonxml::get_param('which',$parstack,
2430: $safeeval);
1.431 raeburn 2431: if ($which=~/\w/) {
2432: $available_texts{$which} = $result;
2433: }
2434: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
2435: $safeeval);
2436: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
2437: if ($language=~/\w/) {
2438: $available_texts{$language} = $result;
2439: }
1.427 bisitz 2440: }
2441:
1.397 albertel 2442: }
2443: return '';
2444: }
1.500 foxr 2445: } # end langauge block specific tags.
2446:
1.397 albertel 2447:
1.170 www 2448: sub start_instructorcomment {
1.201 albertel 2449: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 2450:
2451: my $result;
2452:
1.339 albertel 2453: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2454: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 2455: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 2456: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 2457: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
2458: $parser,$style);
1.170 www 2459: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2460: }
2461: $result='';
2462: } elsif ($target eq 'edit') {
2463: $result .=&Apache::edit::tag_start($target,$token);
2464: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2465: }
2466: return $result;
2467: }
2468:
2469: sub end_instructorcomment {
1.159 albertel 2470: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2471: my $result;
2472: if ($target eq "edit") {
2473: $result.= &Apache::edit::tag_end($target,$token,'');
2474: }
2475: return $result;
1.4 tsai 2476: }
2477:
2478: sub start_while {
1.326 albertel 2479: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2480:
1.160 albertel 2481: my $result;
1.339 albertel 2482: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2483: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2484: my $code = $token->[2]->{'condition'};
1.4 tsai 2485:
1.160 albertel 2486: push( @Apache::structuretags::whileconds, $code);
2487: if (!$Apache::lonxml::default_homework_loaded) {
2488: &Apache::lonxml::default_homework_load($safeeval);
2489: }
2490: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2491: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2492: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2493: push( @Apache::structuretags::whileline, $token->[5]);
2494: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2495: if ( $result ) {
2496: &Apache::lonxml::newparser($parser,\$bodytext);
2497: }
2498: } elsif ($target eq 'edit') {
2499: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2500: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2501: $token,40);
2502: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2503: } elsif ($target eq 'modified') {
2504: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2505: $safeeval,'condition');
2506: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2507: }
1.160 albertel 2508: return $result;
1.4 tsai 2509: }
2510:
2511: sub end_while {
1.159 albertel 2512: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2513: my $result;
2514:
1.339 albertel 2515: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2516: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2517: my $code = pop(@Apache::structuretags::whileconds);
2518: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2519: my $line = pop(@Apache::structuretags::whileline);
2520: my $return = &Apache::run::run($code,$safeeval);
2521: my $starttime=time;
2522: my $error=0;
2523: while ($return) {
2524: if (time-$starttime >
2525: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2526: $return = 0; $error=1; next;
1.161 albertel 2527: }
2528: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2529: if ($target eq 'grade' || $target eq 'answer' ||
2530: $target eq 'analyze') {
2531: # grade/answer/analyze should produce no output but if we
2532: # are redirecting, the redirecter should know what to do
2533: # with the output
2534: if (!$Apache::lonxml::redirection) { undef($result); }
2535: }
1.161 albertel 2536: $return = &Apache::run::run($code,$safeeval);
2537: }
1.516 bisitz 2538: if ($error) {
2539: &Apache::lonxml::error(
2540: '<pre>'
2541: .&mt('Code ran too long. It ran for more than [_1] seconds.',
2542: $Apache::lonnet::perlvar{'lonScriptTimeout'})
2543: .&mt('This occurred while running <while> on line [_1].',
2544: $line)
2545: .'</pre>');
2546: }
1.160 albertel 2547: } elsif ($target eq "edit") {
2548: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2549: }
1.160 albertel 2550: return $result;
1.1 albertel 2551: }
1.6 tsai 2552:
1.160 albertel 2553: # <randomlist show="1">
1.6 tsai 2554: # <tag1>..</tag1>
2555: # <tag2>..</tag2>
2556: # <tag3>..</tag3>
1.160 albertel 2557: # ...
1.6 tsai 2558: # </randomlist>
2559: sub start_randomlist {
1.326 albertel 2560: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2561: my $result;
1.339 albertel 2562: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2563: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2564: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2565: my $b_parser= HTML::LCParser->new(\$body);
2566: $b_parser->xml_mode(1);
2567: $b_parser->marked_sections(1);
1.159 albertel 2568: my $b_tok;
2569: my @randomlist;
2570: my $list_item;
2571: while($b_tok = $b_parser->get_token() ) {
2572: if($b_tok->[0] eq 'S') { # start tag
2573: # get content of the tag until matching end tag
2574: # get all text upto the matching tag
2575: # and push the content into @randomlist
2576: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2577: $b_parser);
2578: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2579: push(@randomlist,$list_item);
2580: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2581: # $list_item</b>";
2582: }
2583: if($b_tok->[0] eq 'T') { # text
2584: # what to do with text in between tags?
2585: # print "<b>TEXT $b_tok->[1]</b><br />";
2586: }
2587: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2588: # print "<b>END-TAG $b_tok->[1]</b><br />";
2589: # }
2590: }
1.303 albertel 2591: if (@randomlist) {
2592: my @idx_arr = (0 .. $#randomlist);
2593: &Apache::structuretags::shuffle(\@idx_arr);
2594: my $bodytext = '';
2595: my $show=$#randomlist;
2596: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2597: $showarg--;
2598: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2599: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2600: my @currlist;
2601: my $part = $Apache::inputtags::part;
2602: if ($part ne '') {
2603: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2604: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2605: if (!(grep(/^\Q$part\E$/,@currlist))) {
2606: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2607: }
2608: } else {
2609: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2610: }
2611: }
2612: }
1.526 raeburn 2613: for my $i (0 .. $show) {
2614: $bodytext .= "$randomlist[ $idx_arr[$i] ]";
1.303 albertel 2615: }
2616: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2617: }
2618: } elsif ($target eq 'edit' ) {
2619: $result .=&Apache::edit::tag_start($target,$token);
2620: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2621: $token,5);
2622: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2623: } elsif ($target eq 'modified' ) {
2624: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2625: $safeeval,'show');
2626: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2627: }
2628: return $result;
1.7 tsai 2629: }
2630:
2631: sub shuffle {
2632: my $a=shift;
2633: my $i;
1.303 albertel 2634: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 2635: &Apache::response::pushrandomnumber();
1.159 albertel 2636: for($i=@$a;--$i;) {
2637: my $j=int(&Math::Random::random_uniform() * ($i+1));
2638: next if $i == $j;
2639: @$a[$i,$j] = @$a[$j,$i];
2640: }
1.251 albertel 2641: &Apache::response::poprandomnumber();
1.7 tsai 2642: }
1.6 tsai 2643: }
2644:
2645: sub end_randomlist {
1.159 albertel 2646: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2647: my $result;
2648: if ($target eq 'edit' ) {
2649: $result=&Apache::edit::tag_end($target,$token,
2650: 'End Randomly Parsed Block');
2651: }
2652: return $result;
1.6 tsai 2653: }
2654:
1.283 albertel 2655: sub ordered_show_check {
2656: my $last_part=$Apache::inputtags::partlist[-2];
2657: my $in_order=
2658: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2659: my $in_order_show=1;
2660: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2661: $in_order_show=&Apache::response::check_status($last_part);
2662: }
2663: return $in_order_show;
2664: }
2665:
1.469 www 2666:
2667: sub start_startpartmarker {
2668: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2669: my $result='';
2670: if ($target eq 'edit') {
2671: $result=&Apache::edit::tag_start($target,$token);
2672: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2673: $result.=&Apache::edit::end_table();
2674:
2675: }
2676: return $result;
2677: }
2678:
2679: sub end_startpartmarker {
2680: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2681: my @result;
2682: if ($target eq 'edit') { $result[1]='no'; }
2683: return @result;
2684: }
2685:
2686: sub start_endpartmarker {
2687: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2688: my $result='';
2689: if ($target eq 'edit') {
2690: $result=&Apache::edit::tag_start($target,$token);
2691: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2692: $result.=&Apache::edit::end_table();
2693:
2694: }
2695: return $result;
2696: }
2697:
2698: sub end_endpartmarker {
2699: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2700: my @result;
2701: if ($target eq 'edit') { $result[1]='no'; }
2702: return @result;
2703: }
2704:
2705:
2706:
2707:
2708:
1.11 albertel 2709: sub start_part {
1.326 albertel 2710: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2711: if (!$Apache::lonxml::metamode) {
2712: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2713: # duedates.
2714: }
1.159 albertel 2715: my $result='';
1.386 albertel 2716: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2717: $Apache::inputtags::part=$id;
1.177 albertel 2718: push(@Apache::inputtags::partlist,$id);
1.536 raeburn 2719: $Apache::inputtags::leniency='';
1.177 albertel 2720: @Apache::inputtags::response=();
1.159 albertel 2721: @Apache::inputtags::previous=();
2722: @Apache::inputtags::previous_version=();
1.405 albertel 2723: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2724: &Apache::response::reset_params();
2725:
1.159 albertel 2726: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2727: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2728: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.528 raeburn 2729: if ($Apache::lonhomework::type eq 'randomizetry') {
2730: my $rndseed=&setup_rndseed($safeeval,$target);
2731: if (($target eq 'grade') && &Apache::response::submitted()) {
1.529 raeburn 2732: $Apache::lonhomework::results{"resource.$id.rndseed"}=$rndseed;
1.528 raeburn 2733: }
2734: } elsif (($target eq 'grade') && &Apache::response::submitted()) {
1.529 raeburn 2735: $Apache::lonhomework::results{"resource.$id.rndseed"}=$Apache::lonhomework::rawrndseed;
1.528 raeburn 2736: }
1.283 albertel 2737: my $in_order_show=&ordered_show_check();
1.214 albertel 2738: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2739: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2740: &Apache::run::run($expression,$safeeval);
1.159 albertel 2741:
2742: if ($target eq 'meta') {
1.224 www 2743: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2744: return &Apache::response::mandatory_part_meta.
2745: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2746: } elsif ($target eq 'web' || $target eq 'grade' ||
2747: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2748: if ($hidden || !$in_order_show) {
1.326 albertel 2749: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2750: } else {
2751: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2752: push (@Apache::inputtags::status,$status);
2753: my $expression='$external::datestatus="'.$status.'";';
2754: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2755: &Apache::run::run($expression,$safeeval);
1.284 albertel 2756: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2757: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2758: }
1.216 albertel 2759: if (( $status eq 'CLOSED' ) ||
2760: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2761: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2762: ( $status eq 'BANNED') ||
2763: ( $status eq 'UNAVAILABLE') ||
2764: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2765: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2766: $style);
1.159 albertel 2767: if ( $target eq "web" ) {
1.211 albertel 2768: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2769: } elsif ( $target eq 'tex' ) {
1.284 albertel 2770: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2771: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2772: } else {
1.211 albertel 2773: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2774: }
1.159 albertel 2775: }
2776: } else {
2777: if ($target eq 'tex') {
1.284 albertel 2778: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2779: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2780: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2781: } else {
2782: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2783: }
1.195 sakharuk 2784: }
1.159 albertel 2785: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2786: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.526 raeburn 2787: my @allkeys = split(/,/,$allkeys);
1.222 sakharuk 2788: my $allow_print_points = 0;
2789: foreach my $partial_key (@allkeys) {
1.230 albertel 2790: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2791: if ($1 ne '0') {$allow_print_points=1;}
2792: }
2793: }
1.275 albertel 2794: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2795: if (defined($maxtries) && $maxtries < 0) {
2796: $allow_print_points=0;
2797: }
1.302 albertel 2798: if (lc($env{'course.'.$env{'request.course.id'}.
2799: '.disableexampointprint'}) eq 'yes') {
2800: $allow_print_points=0;
2801: }
1.463 foxr 2802: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2803: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2804:
2805: }
1.233 www 2806: } elsif ($target eq 'web') {
1.479 raeburn 2807: if ($status eq 'CAN_ANSWER') {
2808: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2809: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
2810: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
2811: my $num = scalar(@Apache::inputtags::partlist)-1;
2812: if ($probrandomize eq 'randomizetry') {
2813: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
2814: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2815: } else {
2816: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2817: if ($probrandtries ne $reqtries) {
2818: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2819: }
2820: }
2821: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
2822: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2823: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2824: }
2825: }
1.475 raeburn 2826: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2827: }
2828: }
2829: }
2830: } elsif ($target eq 'edit') {
2831: $result.=&Apache::edit::tag_start($target,$token);
2832: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2833: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2834: ' '.
2835: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2836: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2837: } elsif ($target eq 'modified') {
2838: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2839: $safeeval,'id','display');
1.159 albertel 2840: if ($constructtag) {
1.225 albertel 2841: #limiting ids to only letters numbers, and space
1.224 www 2842: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2843: $result = &Apache::edit::rebuild_tag($token);
2844: }
2845: }
2846: return $result;
1.11 albertel 2847: }
2848:
2849: sub end_part {
1.159 albertel 2850: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2851: &Apache::lonxml::debug("in end_part $target ");
2852: my $status=$Apache::inputtags::status['-1'];
2853: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2854: my $in_order_show=&ordered_show_check();
1.321 albertel 2855: my $result;
2856: if (!$Apache::lonxml::metamode) {
2857: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2858: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2859: }
1.312 albertel 2860: if ($target eq 'grade') {
1.249 albertel 2861: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2862: !$hidden && $in_order_show) {
1.311 foxr 2863: $result.=&Apache::inputtags::grade;
1.249 albertel 2864: } else {
2865: # move any submission data to .hidden
2866: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2867: }
1.283 albertel 2868: } elsif (($target eq 'web' || $target eq 'tex') &&
2869: !$hidden && $in_order_show) {
1.159 albertel 2870: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2871: $target);
1.490 raeburn 2872: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2873: ($env{'form.grade_imsexport'})) {
1.212 albertel 2874: $gradestatus='';
2875: }
1.311 foxr 2876: $result.=$gradestatus;
1.265 sakharuk 2877: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2878: } elsif ($target eq 'edit') {
1.311 foxr 2879: $result.=&Apache::edit::end_table();
1.322 albertel 2880: } elsif ($target eq 'modified') {
2881: $result .= $token->[2];
1.159 albertel 2882: }
2883: pop @Apache::inputtags::status;
2884: $Apache::inputtags::part='';
1.536 raeburn 2885: $Apache::inputtags::leniency='';
1.295 albertel 2886: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2887: return $result;
1.11 albertel 2888: }
1.1 albertel 2889:
1.25 albertel 2890: sub start_preduedate {
1.326 albertel 2891: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2892: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2893: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2894: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2895: if (!$Apache::lonhomework::scantronmode &&
2896: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2897: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2898: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2899: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2900: }
1.24 albertel 2901: }
1.159 albertel 2902: return '';
1.24 albertel 2903: }
2904:
1.25 albertel 2905: sub end_preduedate {
1.159 albertel 2906: return '';
1.24 albertel 2907: }
2908:
1.369 foxr 2909: # In all the modes where <postanswerdate> text is
2910: # displayable, all we do is eat up the text between the start/stop
2911: # tags if the conditions are not right to display it.
1.25 albertel 2912: sub start_postanswerdate {
1.326 albertel 2913: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2914: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2915: &Apache::lonnet::allowed('pav',
2916: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2917: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2918: $target eq 'tex' ) {
1.300 albertel 2919: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2920: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2921: (($target eq 'tex') && !$pav)) {
1.326 albertel 2922: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2923: }
2924: }
2925: return '';
1.24 albertel 2926: }
2927:
1.25 albertel 2928: sub end_postanswerdate {
1.159 albertel 2929: return '';
1.24 albertel 2930: }
2931:
1.25 albertel 2932: sub start_notsolved {
1.326 albertel 2933: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2934: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2935: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2936: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2937: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2938: if ($gradestatus =~ /^correct/ &&
2939: &Apache::response::show_answer()) {
1.159 albertel 2940: &Apache::lonxml::debug("skipping");
1.326 albertel 2941: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2942: }
1.24 albertel 2943: }
1.159 albertel 2944: return '';
1.24 albertel 2945: }
2946:
1.25 albertel 2947: sub end_notsolved {
1.159 albertel 2948: return '';
1.24 albertel 2949: }
2950:
2951: sub start_solved {
1.326 albertel 2952: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2953: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2954: $target eq 'tex') {
2955: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2956: if ($gradestatus !~ /^correct/ ||
2957: !&Apache::response::show_answer()) {
1.326 albertel 2958: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2959: }
1.24 albertel 2960: }
1.159 albertel 2961: return '';
1.24 albertel 2962: }
2963:
2964: sub end_solved {
1.248 albertel 2965: return '';
2966: }
2967:
2968: sub start_problemtype {
1.326 albertel 2969: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2970: my $result;
1.339 albertel 2971: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2972: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2973: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2974: if (!defined($mode)) { $mode='show'; }
2975: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2976: my $found=0;
2977: foreach my $type (split(',',$for)) {
2978: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2979: }
2980: if ($mode eq 'show' && !$found) {
1.326 albertel 2981: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2982: }
2983: if ($mode eq 'hide' && $found) {
1.326 albertel 2984: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2985: }
2986: } elsif ($target eq 'edit') {
2987: $result .=&Apache::edit::tag_start($target,$token);
2988: $result.=&Apache::edit::select_arg('Mode:','mode',
2989: [['show','Show'],
2990: ['hide','Hide']]
2991: ,$token);
2992: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.511 bisitz 2993: [ ['exam','Bubblesheet Exam/Quiz Problem'],
1.248 albertel 2994: ['survey','Survey'],
1.465 raeburn 2995: ['surveycred','Survey (with credit)'],
2996: ['anonsurvey','Anonymous Survey'],
2997: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2998: ['problem','Homework Problem'],
1.479 raeburn 2999: ['practice','Practice Problem'],
3000: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 3001: ,$token);
3002: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
3003: } elsif ($target eq 'modified') {
3004: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
3005: $safeeval,'mode','for');
3006: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
3007: }
3008: return $result;
3009: }
3010:
3011: sub end_problemtype {
1.159 albertel 3012: return '';
1.24 albertel 3013: }
1.34 albertel 3014:
3015: sub start_startouttext {
1.159 albertel 3016: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3017: my @result=(''.'');
3018: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 3019:
3020: my $nesting =
3021: &Apache::lonxml::set_state('outtext',
3022: &Apache::lonxml::get_state('outtext')+1);
3023: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
3024: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
3025: }
1.159 albertel 3026: return (@result);
1.34 albertel 3027: }
1.159 albertel 3028:
1.34 albertel 3029: sub end_startouttext {
1.326 albertel 3030: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 3031: my $result='';
3032: my $text='';
3033: if ($target eq 'edit') {
1.424 foxr 3034: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 3035: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.527 golterma 3036: $result.=&Apache::edit::start_table($token)."<tr><td>".&Apache::loncommon::insert_folding_button()
3037: ." ".&mt('Text Block')."</td>"
1.438 bisitz 3038: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 3039: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 3040: .'</span></td>'
1.550 raeburn 3041: .'<td><span id="math_'.$areaid.'">';
3042: if ($env{'environment.nocodemirror'}) {
3043: $result.=&Apache::lonhtmlcommon::dragmath_button($areaid,1);
3044: } else {
3045: $result.=' ';
3046: }
3047: $result.='</span></td>'
1.474 raeburn 3048: .'<td>'
3049: .&Apache::edit::insertlist($target,$token)
3050: .'</td>'
1.515 golterma 3051: .'<td class="LC_edit_problem_latexhelper">' .
1.474 raeburn 3052: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 3053: &Apache::edit::end_row().
1.362 albertel 3054: &Apache::edit::start_spanning_row()."\n".
1.255 www 3055: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 3056: }
3057: if ($target eq 'modified') {
1.219 albertel 3058: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 3059: }
3060: if ($target eq 'tex') {
3061: $result .= '\noindent ';
3062: }
3063: return $result;
1.34 albertel 3064: }
1.159 albertel 3065:
1.34 albertel 3066: sub start_endouttext {
1.159 albertel 3067: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3068: my $result='';
3069: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
3070: if ($target eq "modified") {
3071: $result='<endouttext />'.
1.377 albertel 3072: &Apache::edit::handle_insertafter('startouttext');
3073: }
1.404 albertel 3074:
3075: my $nesting =
3076: &Apache::lonxml::set_state('outtext',
3077: &Apache::lonxml::get_state('outtext')-1);
3078: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
3079: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
3080: &Apache::lonxml::set_state('outtext', 0);
3081: }
1.159 albertel 3082: return $result;
1.34 albertel 3083: }
1.159 albertel 3084:
1.34 albertel 3085: sub end_endouttext {
1.159 albertel 3086: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3087: my @result=('','');
3088: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
3089: return (@result);
1.34 albertel 3090: }
1.159 albertel 3091:
1.45 albertel 3092: sub delete_startouttext {
1.326 albertel 3093: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
3094: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 3095: my $text=$$parser['-1']->get_text("/endouttext");
3096: my $ntoken=$$parser['-1']->get_token();
3097: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
3098: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
3099: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
3100: # they did the last time round
3101: &Apache::lonxml::increasedepth($ntoken);
3102: &Apache::lonxml::decreasedepth($ntoken);
3103: return 1;
1.193 www 3104: }
3105:
3106: sub start_simpleeditbutton {
3107: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3108: my $result='';
1.284 albertel 3109: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 3110: ($target eq 'web') &&
1.330 albertel 3111: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 3112: my $url=$env{'request.noversionuri'};
1.193 www 3113: $url=~s/\?.*$//;
1.367 albertel 3114: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 3115: # Warning makes more sense and is more important on edit screen
1.442 bisitz 3116: # $result='<p class="LC_warning">'
3117: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
3118: # .&Apache::loncommon::help_open_topic('Caching')
3119: # .'</p>';
1.486 www 3120: $result.=&Apache::loncommon::head_subbox(
3121: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 3122: .&Apache::lonhtmlcommon::add_item_funclist(
3123: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
3124: .&mt('Edit').'</a>')
1.486 www 3125: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 3126:
1.193 www 3127: }
3128: return $result;
3129: }
3130:
3131: sub end_simpleeditbutton {
3132: return '';
1.45 albertel 3133: }
1.34 albertel 3134:
1.428 raeburn 3135: sub practice_problem_header {
3136: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
3137: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
3138: '</span>';
3139: }
3140:
1.479 raeburn 3141: sub randomizetry_problem_header {
3142: my ($problemstatus,$reqtries) = @_;
3143: my ($header,$text);
3144: if ($reqtries > 1) {
3145: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
3146: if (($problemstatus eq 'no') ||
3147: ($problemstatus eq 'no_feedback_ever')) {
3148: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3149: } else {
3150: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3151: }
3152: } else {
3153: $header = &mt('New Problem Variation Each Try');
3154: if (($problemstatus eq 'no') ||
3155: ($problemstatus eq 'no_feedback_ever')) {
3156: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
3157:
3158: } else {
3159: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
3160: }
3161: }
3162: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
3163: '<span class="LC_info">'.$text.'</span><hr />';
3164: }
3165:
3166: sub randomizetry_part_header {
3167: my ($problemstatus,$reqtries,$num) = @_;
3168: my ($header,$text);
3169: if ($reqtries eq 'none') {
3170: $header = &mt('No Question Variation');
3171: $text = &mt('For this question there will no new variation after a try.');
3172: } elsif ($reqtries > 1) {
3173: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
3174: if (($problemstatus eq 'no') ||
3175: ($problemstatus eq 'no_feedback_ever')) {
3176: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3177: } else {
3178: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3179: }
3180: } else {
3181: $header = &mt('New Question Variation For Each Try');
3182: if (($problemstatus eq 'no') ||
3183: ($problemstatus eq 'no_feedback_ever')) {
3184: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
3185: } else {
3186: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
3187: }
3188: }
3189: my $output;
3190: if ($num > 1) {
3191: $output .= '<hr />';
3192: }
3193: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
3194: '<span class="LC_info">'.$text.'</span><br /><br />';
3195: return $output;
3196: }
3197:
1.1 albertel 3198: 1;
3199: __END__
1.435 jms 3200:
3201: =pod
3202:
3203: =back
3204:
3205: =cut
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