Annotation of loncom/homework/structuretags.pm, revision 1.512.2.13.2.2
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.512.2.13.2. (raeburn 4:): # $Id: structuretags.pm,v 1.512.2.13.2.1 2017/06/13 16:20:41 raeburn Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.435 jms 30: =pod
31:
32: =head1 NAME
33:
34: Apache::structuretags
35:
36: =head1 SYNOPSIS
37:
38:
39: This is part of the LearningOnline Network with CAPA project
40: described at http://www.lon-capa.org.
41:
42:
43: =head1 NOTABLE SUBROUTINES
44:
45: =over
46:
47: =item
48:
49: =back
50:
51: =cut
52:
1.133 sakharuk 53:
1.1 albertel 54: package Apache::structuretags;
55:
56: use strict;
57: use Apache::lonnet;
1.101 sakharuk 58: use Apache::File();
1.147 www 59: use Apache::lonmenu;
1.210 albertel 60: use Apache::lonlocal;
1.231 sakharuk 61: use Apache::lonxml;
1.434 foxr 62: use Apache::londefdef;
1.338 albertel 63: use Apache::lonenc();
1.500 foxr 64: use Apache::loncommon();
1.267 albertel 65: use Time::HiRes qw( gettimeofday tv_interval );
1.356 www 66: use lib '/home/httpd/lib/perl/';
67: use LONCAPA;
68:
1.78 harris41 69: BEGIN {
1.469 www 70: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','translated','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startpartmarker','startouttext','endpartmarker','endouttext','simpleeditbutton','definetag'));
1.10 albertel 71: }
72:
1.500 foxr 73:
74: #---------------------------------------------------------------------------------
75: #
76: # This section of code deals with hyphenation management.
77: # We must do three things:
78: # - keep track fo the desired languages to alter the header.
79: # - provide hyphenation selection as needed by each language that appears in the
80: # text.
81: # - Provide the header text needed to make available the desired hyphenations.
82: #
83: #
84:
85: # Hash whose keys are the languages encountered in the document/resource.
86: #
87:
88: my %languages_required;
89: ##
90: # Given a language selection as input returns a chunk of LaTeX that
91: # selects the required hyphenator.
92: #
93: # @param language - the language being selected.
94: # @return string
95: # @retval The LaTeX needed to select the hyphenation appropriate to the language.
96: #
97: sub select_hyphenation {
98: my $language = shift;
99:
100: $language = &Apache::loncommon::latexlanguage($language); # Translate -> latex language.
101:
102: # If there is no latex language there's not much we can do:
103:
104: if ($language) {
105: &require_language($language);
106: my $babel_hyphenation = "\\selectlanguage{$language}";
107:
108: return $babel_hyphenation;
109: } else {
110: return '';
111: }
112: }
113: ##
114: # Selects hyphenation based on the current problem metadata.
115: # This requires that
116: # - There is a language metadata item set for the problem.
117: # - The language has a latex/babel hyphenation.
118: #
119: # @note: Uses &Apache::lonxml::request to locate the Uri associated with
120: # this problem.
121: # @return string (possibly empty).
122: # @retval If not empty an appropriate \selectlanguage{} directive.
123: #
124: sub select_metadata_hyphenation {
125: my $uri = $Apache::lonxml::request->uri;
126: my $language = &Apache::lonnet::metadata($uri, 'language');
127: my $latex_language = &Apache::loncommon::latexhyphenation($language);
128: if ($latex_language) {
129: return '\selectlanguage{'.$latex_language."}\n";
130: }
131: return ''; # no latex hyphenation or no lang metadata.
132: }
133:
134:
135: ##
136: # Clears the set of languages required by the document being rendered.
137: #
138: sub clear_required_languages {
139: %languages_required = ();
140: }
141: ##
142: # Allows an external client of this module to register a need for a language:
143: #
144: # @param LaTeX language required:
145: #
146: sub require_language {
147: my $language = shift;
148: $languages_required{$language} = 1;
149: }
150:
151: ##
152: # Provides the header for babel that indicates the languages
153: # the document requires.
154: # @return string
155: # @retval \usepackage[lang1,lang2...]{babel}
156: # @retval '' if there are no languages_required.
157: sub languages_header {
158: my $header ='';
159: my @languages = (keys(%languages_required));
160:
161: # Only generate the header if there are languages:
162:
163: if (scalar @languages) {
164: my $language_list = join(',', (@languages));
165: $header = '\usepackage['.$language_list."]{babel}\n";
166: }
167: return $header;
168: }
169:
170: #----------------------------------------------------------------------------------
171:
1.10 albertel 172: sub start_web {
1.326 albertel 173: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 174: if ($target ne 'edit' && $target ne 'modified') {
175: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
176: if ($target eq 'web' || $target eq 'webgrade') {
177: return $bodytext;
178: }
179: } elsif ($target eq "edit" ) {
180: my $bodytext =
181: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
182: my $result = &Apache::edit::tag_start($target,$token);
183: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
184: return $result;
185: } elsif ( $target eq "modified" ) {
186: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 187: }
188: return '';
1.10 albertel 189: }
190:
191: sub end_web {
1.44 ng 192: return '';
1.10 albertel 193: }
194:
195: sub start_tex {
1.326 albertel 196: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 197: my $result='';
1.383 albertel 198: if ($target ne 'edit' && $target ne 'modified') {
199: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
200: if ($target eq 'tex') {
1.434 foxr 201:
202: # If inside a table, occurrences of \\ must be removed;
203: # else the table blows up.
204:
205: if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
206: $bodytext =~ s/\\\\//g;
207: }
1.432 foxr 208: return $bodytext.'{}';
1.383 albertel 209: }
210: } elsif ($target eq "edit" ) {
211: my $bodytext =
212: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
213: my $result = &Apache::edit::tag_start($target,$token);
214: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
215: return $result;
216: } elsif ( $target eq "modified" ) {
217: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 218: }
1.198 sakharuk 219: return $result;;
1.10 albertel 220: }
221:
222: sub end_tex {
1.44 ng 223: return '';
1.9 albertel 224: }
225:
1.400 albertel 226: sub homework_js {
1.512.2.9 raeburn 227: my ($postsubmit,$timeout);
228: if (($env{'request.course.id'}) && ($env{'request.state'} ne 'construct')) {
229: my $crstype;
230: if (&Apache::loncommon::course_type() eq 'Community') {
231: $crstype = 'community';
232: } else {
233: if ($env{'course.'.$env{'request.course.id'}.'.internal.coursecode'}) {
234: $crstype = 'official';
235: } elsif ($env{'course.'.$env{'request.course.id'}.'.internal.textbook'}) {
236: $crstype = 'textbook';
237: } else {
238: $crstype = 'unofficial';
239: }
240: }
241: $postsubmit = $env{'course.'.$env{'request.course.id'}.'.internal.postsubmit'};
242: if ($postsubmit eq '') {
243: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
244: $postsubmit = $domdefs{'postsubmit'};
245: unless ($postsubmit eq 'off') {
246: $timeout = $domdefs{$crstype.'postsubtimeout'};
247: }
248: } elsif ($postsubmit eq '0') {
249: $postsubmit = 'off';
250: } elsif ($postsubmit eq '1') {
251: $postsubmit = 'on';
252: $timeout = $env{'course.'.$env{'request.course.id'}.'.internal.postsubtimeout'};
253: if ($timeout eq '') {
254: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'});
255: $timeout = $domdefs{$crstype.'postsubtimeout'};
256: }
257: }
258: if ($timeout eq '') {
259: $timeout = 60;
260: }
261: } else {
262: my %domdefs = &Apache::lonnet::get_domain_defaults($env{'request.role.domain'});
263: $postsubmit = $domdefs{'postsubmit'};
264: unless ($postsubmit eq 'off') {
265: $timeout = 60;
266: }
267: }
268: my $jstimeout = 0;
269: if ($timeout) {
270: $jstimeout = 1000 * $timeout;
271: }
1.400 albertel 272: return &Apache::loncommon::resize_textarea_js().
1.512.2.11 raeburn 273: &Apache::loncommon::colorfuleditor_js().
1.416 raeburn 274: &setmode_javascript().
1.512.2.9 raeburn 275: <<"JS";
1.400 albertel 276: <script type="text/javascript">
1.483 raeburn 277: // <![CDATA[
1.494 raeburn 278: function setSubmittedPart (part,prefix) {
279: if (typeof(prefix) == 'undefined') {
280: this.document.lonhomework.submitted.value="part_"+part;
281: } else {
282: for (var i=0;i<this.document.lonhomework.elements.length;i++) {
283: if (this.document.lonhomework.elements[i].name == prefix+'submitted') {
284: this.document.lonhomework.elements[i].value="part_"+part;
285: }
286: }
287: }
1.400 albertel 288: }
289:
1.512.2.9 raeburn 290: function disableAutoComplete (id) {
291: var field = document.getElementById(id);
292: if (field != null && field != undefined){
293: if ('autocomplete' in field) {
294: field.autocomplete = "off";
295: } else {
296: field.setAttribute("autocomplete", "off");
297: }
298: }
299: }
300:
1.400 albertel 301: function image_response_click (which, e) {
302: init_geometry();
303: if (!e) { e = window.event; } //IE
304: var input_element = document.lonhomework.elements[which];
1.401 albertel 305: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 306: var token = token_element.value;
1.401 albertel 307: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 308: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
309: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
310: var click = x+':'+y;
311: input_element.value = click;
1.485 raeburn 312: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
1.400 albertel 313: }
1.512.2.9 raeburn 314:
315: var submithandled = 0;
316: var keypresshandled = 0;
317: var postsubmit = '$postsubmit';
318:
319: \$(document).ready(function(){
320: if (postsubmit != 'off') {
321: \$(document).keypress(function(event){
322: var keycode = (event.keyCode ? event.keyCode : event.which);
323: if ((keycode == '13') && (keypresshandled == 0)) {
324: if ( \$( document.activeElement ).hasClass("LC_textline") ) {
325: keypresshandled = 1;
326: var idsArray = \$( document.activeElement ).attr("id").split(/HWVAL_/);
327: if (idsArray.length) {
328: event.preventDefault();
329: var itemsArray = idsArray[1].split(/_/);
330: var buttonId = idsArray[0]+'submit_'+itemsArray[0];
331: \$("#"+buttonId).trigger("click");
332: }
333: }
334: }
335: });
336:
337: \$(document).delegate('form :submit', 'click', function( event ) {
338: if ( \$( this ).hasClass( "LC_hwk_submit" ) ) {
339: var buttonId = this.id;
340: var timeout = $jstimeout;
341: if (submithandled == 0) {
342: submithandled = 1;
343: \$( "#msg_"+buttonId ).css({"display": "inline","background-color": "#87cefa",
344: "color": "black","padding": "2px"}) ;
1.512.2.13.2. (raeburn 345:): if (( \$(this.form).attr("id") == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
1.512.2.9 raeburn 346: if (buttonId != "all_submit") {
347: \$( ".LC_status_"+buttonId ).hide();
1.512.2.13.2. (raeburn 348:): }
349:): if (( "#"+buttonId+"_pressed" ).length) {
350:): \$( "#"+buttonId+"_pressed" ).val( "1" );
1.512.2.9 raeburn 351: }
352: } else {
353: \$( ".LC_status_"+buttonId ).hide();
354: }
355: \$(this.form).submit();
356: \$( ".LC_hwk_submit" ).prop( "disabled", true);
357: \$( ".LC_textline" ).prop( "readonly", "readonly");
358: event.preventDefault();
359:
360: if (timeout > 0) {
361: setTimeout(function(){
362: \$( "#msg_"+buttonId ).css({"display": "none"});
1.512.2.13.2. (raeburn 363:): if (( \$(this.form).attr("id") == "LC_page" ) && (\$('input[name="all_submit"]').length )) {
364:): if (( "#"+buttonId+"_pressed" ).length) {
365:): \$( "#"+buttonId+"_pressed" ).val( "" );
1.512.2.9 raeburn 366: }
367: }
368: \$( ".LC_hwk_submit" ).prop( "disabled", false);
369: \$( ".LC_textline" ).prop( "readonly", false);
370: submithandled = 0;
371: keypresshandled = 0;
372: }, timeout);
373: }
374: return true;
375: }
376: }
377: });
378: }
379: });
380:
1.483 raeburn 381: // ]]>
1.400 albertel 382: </script>
383: JS
384: }
385:
1.416 raeburn 386: sub setmode_javascript {
387: return <<"ENDSCRIPT";
388: <script type="text/javascript">
1.485 raeburn 389: // <![CDATA[
1.416 raeburn 390: function setmode(form,probmode) {
1.512.2.13 raeburn 391: var initial = form.problemmode.value;
1.416 raeburn 392: form.problemmode.value = probmode;
393: form.submit();
1.512.2.13 raeburn 394: form.problemmode.value = initial;
1.416 raeburn 395: }
1.485 raeburn 396: // ]]>
1.416 raeburn 397: </script>
398: ENDSCRIPT
399: }
400:
1.48 albertel 401: sub page_start {
1.345 albertel 402: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
403: $extra_head)=@_;
1.159 albertel 404: my %found;
1.207 albertel 405: foreach my $taginside (@$tagstack) {
1.159 albertel 406: foreach my $taglookedfor ('html','body','form') {
407: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
408: }
409: }
410:
1.343 albertel 411: if ($target eq 'tex') {
412: return
413: &Apache::londefdef::start_html($target,$token,$tagstack,
414: $parstack,$parser,$safeeval);
415: }
416:
1.474 raeburn 417: $extra_head .= &homework_js().
418: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
419: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
1.512.2.12 raeburn 420: my %textarea_args;
421: if (($env{'request.state'} ne 'construct') ||
422: ($env{'environment.nocodemirror'})) {
423: %textarea_args = (
1.474 raeburn 424: dragmath => 'math',
425: );
1.512.2.12 raeburn 426: }
1.474 raeburn 427: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 428: }
1.478 raeburn 429: my $is_task = ($env{'request.uri'} =~ /\.task$/);
1.512.2.9 raeburn 430: my ($needs_upload,$partlist);
1.495 raeburn 431: my ($symb)= &Apache::lonnet::whichuser();
432: my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
1.478 raeburn 433: if ($is_task) {
1.495 raeburn 434: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
1.493 raeburn 435: } else {
436: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.uploadedfiletypes") ne '') {
1.495 raeburn 437: unless ($env{'request.state'} eq 'construct') {
438: my $navmap = Apache::lonnavmaps::navmap->new();
439: if (ref($navmap)) {
440: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 441: my $is_page;
442: if (ref($mapres)) {
443: $is_page = $mapres->is_page();
444: }
445: unless ($is_page) {
1.495 raeburn 446: $needs_upload = 1;
447: }
1.512.2.9 raeburn 448: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
449: my $res = $navmap->getBySymb($symb);
450: if (ref($res)) {
451: $partlist = $res->parts();
452: }
453: }
1.495 raeburn 454: }
455: }
1.493 raeburn 456: } else {
457: unless ($env{'request.state'} eq 'construct') {
458: my $navmap = Apache::lonnavmaps::navmap->new();
459: if (ref($navmap)) {
1.495 raeburn 460: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 461: my $is_page;
462: if (ref($mapres)) {
463: $is_page = $mapres->is_page();
464: }
1.512.2.9 raeburn 465: if ($is_page) {
466: if ((ref($tagstack) eq 'ARRAY') && ($tagstack->[-1] eq 'problem')) {
467: my $res = $navmap->getBySymb($symb);
468: if (ref($res)) {
469: $partlist = $res->parts();
470: }
471: }
472: } else {
1.495 raeburn 473: my $res = $navmap->getBySymb($symb);
474: if (ref($res)) {
1.512.2.9 raeburn 475: $partlist = $res->parts();
1.495 raeburn 476: if (ref($partlist) eq 'ARRAY') {
477: foreach my $part (@{$partlist}) {
478: my @types = $res->responseType($part);
479: my @ids = $res->responseIds($part);
480: for (my $i=0; $i < scalar(@ids); $i++) {
481: if ($types[$i] eq 'essay') {
482: my $partid = $part.'_'.$ids[$i];
483: if (&Apache::lonnet::EXT("resource.$partid.uploadedfiletypes") ne '') {
484: $needs_upload = 1;
485: last;
486: }
1.493 raeburn 487: }
488: }
489: }
1.495 raeburn 490: }
491: }
1.493 raeburn 492: }
493: }
494: }
495: }
1.495 raeburn 496: if ($needs_upload) {
497: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
498: }
1.478 raeburn 499: }
1.425 raeburn 500:
1.344 albertel 501: my %body_args;
502: if (defined($found{'html'})) {
503: $body_args{'skip_phases'}{'head'}=1;
504: } else {
1.343 albertel 505:
1.345 albertel 506: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 507:
1.379 albertel 508: $extra_head .= &Apache::londefdef::generate_css_links();
509:
1.384 albertel 510: if ($env{'request.state'} eq 'construct') {
1.343 albertel 511: $extra_head.=&Apache::edit::js_change_detection().
512: "<script type=\"text/javascript\">\n".
513: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
514: &Apache::loncommon::browser_and_searcher_javascript().
515: "\n</script>\n";
1.512.2.9 raeburn 516: if ($target eq 'edit') {
517: $extra_head .= &Apache::edit::js_update_linknum();
518: }
1.343 albertel 519: }
1.159 albertel 520: }
1.343 albertel 521:
1.446 bisitz 522: my $pageheader = '';
1.344 albertel 523: if (defined($found{'body'})) {
524: $body_args{'skip_phases'}{'body'}=1;
525: } elsif (!defined($found{'body'})
526: && $env{'request.state'} eq 'construct') {
1.343 albertel 527: if ($target eq 'web' || $target eq 'edit') {
1.512.2.3 raeburn 528: # Breadcrumbs for Authoring Space
1.450 bisitz 529: &Apache::lonhtmlcommon::clear_breadcrumbs();
530: &Apache::lonhtmlcommon::add_breadcrumb({
1.512.2.3 raeburn 531: 'text' => 'Authoring Space',
1.497 raeburn 532: 'href' => &Apache::loncommon::authorspace($env{'request.uri'}),
1.450 bisitz 533: });
1.460 droeschl 534: # breadcrumbs (and tools) will be created
535: # in start_page->bodytag->innerregister
536:
1.450 bisitz 537: # FIXME Where are we?
538: # &Apache::lonhtmlcommon::add_breadcrumb({
539: # 'text' => 'Problem Editing', # 'Problem Testing'
540: # 'href' => '',
541: # });
1.460 droeschl 542: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 543: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 544: }
1.272 albertel 545: } elsif (!defined($found{'body'})) {
1.343 albertel 546: my %add_entries;
1.159 albertel 547: my $background=&Apache::lonxml::get_param('background',$parstack,
548: $safeeval);
1.343 albertel 549: if ($background ne '' ) {
550: $add_entries{'background'} = $background;
551: }
1.344 albertel 552:
1.290 albertel 553: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
554: $safeeval);
1.446 bisitz 555: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 556:
1.446 bisitz 557: $body_args{'bgcolor'} = $bgcolor;
558: # $body_args{'no_title'} = 1;
559: $body_args{'force_register'} = 1;
560: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 561: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 562: $body_args{'only_body'} = 1;
1.512.2.7 raeburn 563: } elsif ($target eq 'web') {
564: $body_args{'print_suppress'} = 1;
1.446 bisitz 565: }
1.344 albertel 566: }
1.365 albertel 567: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 568: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
569: \%body_args);
1.446 bisitz 570: $page_start .= $pageheader;
1.462 raeburn 571: if (!defined($found{'body'})
572: && $env{'request.state'} ne 'construct'
573: && ($target eq 'web' || $target eq 'webgrade')) {
574:
575: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
576: if ($symb eq '' && !$publicuser) {
577: $page_start .= '<p class="LC_info">'
578: .&mt('Browsing resource, all submissions are temporary.')
579: .'</p>';
1.457 bisitz 580: }
1.344 albertel 581: }
582:
1.409 albertel 583: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 584: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 585: }
586: my $form_tag_start;
587: if (!defined($found{'form'})) {
1.337 albertel 588: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 589: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 590: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 591: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 592: $form_tag_start.=$uri.'" ';
593: if ($target eq 'edit') {
594: $form_tag_start.=&Apache::edit::form_change_detection();
595: }
1.493 raeburn 596: my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
597: my ($path,$multiresp) =
598: &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
1.495 raeburn 599: if (($is_task) || ($needs_upload)) {
600: $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
1.478 raeburn 601: }
1.368 albertel 602: $form_tag_start.='>'."\n";
1.355 albertel 603:
604: if ($symb =~ /\S/) {
605: $symb=
606: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
607: $form_tag_start.=
1.368 albertel 608: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 609: }
1.159 albertel 610: }
1.512.2.9 raeburn 611: return ($page_start,$form_tag_start,$partlist);
1.105 albertel 612: }
613:
1.141 matthew 614: #use Time::HiRes();
1.105 albertel 615: sub get_resource_name {
1.159 albertel 616: my ($parstack,$safeeval)=@_;
1.388 foxr 617: my $name;
1.204 albertel 618: if (defined($Apache::lonhomework::name)) {
1.388 foxr 619: $name = $Apache::lonhomework::name;
620: } else {
621: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 622: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 623: if ($name eq '') {
624: $name=&Apache::lonnet::EXT('resource.title');
625: if ($name eq 'con_lost') { $name = ''; }
626: }
627: if ($name!~/\S+/) {
628: $name=$env{'request.uri'};
629: $name=~s-.*/([^/]+)$-$1-;
630: }
631: # The name has had html tags escaped:
632:
633: $name=~s/</</gs;
634: $name=~s/>/>/gs;
635:
636: $Apache::lonhomework::name=$name;
1.204 albertel 637: }
1.159 albertel 638: return $name;
1.105 albertel 639: }
640:
641: sub setup_rndseed {
1.512.2.9 raeburn 642: my ($safeeval,$target,$probpartlist)=@_;
1.367 albertel 643: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 644: my ($questiontype,$set_safespace,$rndseed);
645: if ($target eq 'analyze') {
646: $questiontype = $env{'form.grade_questiontype'};
647: }
648: unless (defined($questiontype)) {
649: $questiontype = $Apache::lonhomework::type;
650: }
1.333 albertel 651: if ($env{'request.state'} eq "construct"
652: || $symb eq ''
653: || $Apache::lonhomework::type eq 'practice'
654: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 655: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 656: ['rndseed']);
1.284 albertel 657: $rndseed=$env{'form.rndseed'};
1.159 albertel 658: if (!$rndseed) {
1.162 albertel 659: $rndseed=$Apache::lonhomework::history{'rndseed'};
660: if (!$rndseed) {
661: $rndseed=time;
662: }
1.284 albertel 663: $env{'form.rndseed'}=$rndseed;
1.162 albertel 664: }
1.479 raeburn 665: if (($env{'request.state'} eq "construct") &&
666: ($Apache::lonhomework::type eq 'randomizetry')) {
667: my $tries = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
668: if ($tries) {
669: $rndseed += $tries;
670: }
1.480 raeburn 671: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 672: }
1.374 albertel 673: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
674: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 675: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 676: srand(time);
677: $rndseed=int(rand(2100000000));
1.284 albertel 678: $env{'form.rndseed'}=$rndseed;
679: delete($env{'form.resetdata'});
680: delete($env{'form.newrandomization'});
1.159 albertel 681: }
1.488 www 682: $rndseed=~s/\,/\:/g;
683: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 684: if (defined($rndseed)) {
685: my ($c1,$c2)=split(/\:/,$rndseed);
686: unless ($c2) { $c2=0; }
687: unless (($c1==int($c1)) && ($c2==int($c2))) {
688: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
689: }
1.187 albertel 690: }
1.247 albertel 691: if ($Apache::lonhomework::history{'resource.CODE'}) {
692: $rndseed=&Apache::lonnet::rndseed();
693: }
1.479 raeburn 694: $set_safespace = 1;
695: } elsif ($questiontype eq 'randomizetry') {
696: if ($target eq 'analyze') {
697: if (defined($env{'form.grade_rndseed'})) {
698: $rndseed = $env{'form.grade_rndseed'};
699: }
700: }
701: unless (($target eq 'analyze') && (defined($rndseed))) {
702: $rndseed=&Apache::lonnet::rndseed();
1.512.2.9 raeburn 703: my $partfortries = $Apache::inputtags::part;
704: if (ref($probpartlist) eq 'ARRAY') {
705: if ((@{$probpartlist} == 1) && ($probpartlist->[0] ne $Apache::inputtags::part)) {
706: $partfortries = $probpartlist->[0];
707: }
708: }
709: my $curr_try = $Apache::lonhomework::history{"resource.$partfortries.tries"};
1.479 raeburn 710: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
711: $curr_try ++;
712: }
713: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
714: $rndseed = $1;
715: }
716: if ($curr_try) {
1.512.2.9 raeburn 717: my $reqtries = &Apache::lonnet::EXT("resource.$partfortries.randomizeontries");
1.479 raeburn 718: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
719: my $inc = int(($curr_try-1)/$reqtries);
720: $rndseed += $inc;
721: } else {
722: $rndseed += $curr_try;
723: }
724: }
725: }
726: $set_safespace = 1;
1.512.2.9 raeburn 727: if ($target eq 'grade') {
728: $Apache::lonhomework::rawrndseed = $rndseed;
729: }
1.479 raeburn 730: }
731: if ($set_safespace) {
732: if ($safeeval) {
733: &Apache::lonxml::debug("Setting rndseed to $rndseed");
734: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
735: }
736: }
737: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
738: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 739: }
740: return $rndseed;
1.105 albertel 741: }
742:
1.268 albertel 743: sub remember_problem_state {
744: return '
1.284 albertel 745: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
746: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
747: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 748: }
749:
1.487 www 750: sub problem_edit_action_button {
751: my ($name,$action,$accesskey,$text,$flag)=@_;
752: my $actionscript="setmode(this.form,'$action')";
753: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
754: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
755: }
756:
1.423 www 757: sub problem_edit_buttons {
1.487 www 758: my ($mode)=@_;
1.512.2.11 raeburn 759: # Buttons that save
760: my $result = '<div style="float:right">';
761: if ($mode eq 'editxml') {
762: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
763: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
764: } else {
765: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
766: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
767: }
768: $result.="\n</div>\n";
1.487 www 769: # Buttons that do not save
1.512.2.11 raeburn 770: $result .= '<div>'.
1.487 www 771: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
772: if ($mode eq 'editxml') {
773: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
774: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
1.512.2.11 raeburn 775: if ($env{'environment.nocodemirror'}) {
776: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
777: }
1.487 www 778: } else {
779: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
780: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
781: }
782: $result.="\n</div>";
783: return $result;
1.423 www 784: }
785:
786: sub problem_edit_header {
1.512.2.11 raeburn 787: my ($mode)=@_;
788: my $return = '<input type="hidden" name="submitted" value="edit" />'.
1.487 www 789: &remember_problem_state('edit').'
1.512.2.11 raeburn 790: <div class="LC_edit_problem_header">
791: <div class="LC_edit_problem_header_title">
792: '.&mt('Problem Editing').$mode.&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
793: </div><div class="LC_edit_actionbar" id="actionbar">'.
794: '<input type="hidden" name="problemmode" value="saveedit" />'.
795: &problem_edit_buttons();
796:
797: $return .= '</div></div>' . &Apache::lonxml::message_location();
798: $return .= '<link rel="stylesheet" href="/adm/codemirror/codemirror-combined.css" />
799: <script type="text/javascript" src="/adm/codemirror/codemirror-compressed-colorful.js"></script>';
800:
801: $return .= '<script type="text/javascript" src="/adm/jQuery/addons/jquery-scrolltofixed.js"></script>
802: <script type="text/javascript">
803: // unless internet explorer
804: if (!(window.navigator.appName == "Microsoft Internet Explorer" && (document.documentMode || document.compatMode))){
805: $(document).ready(
806: function() {
807: $(\'.LC_edit_actionbar\').scrollToFixed(
808: {
809: fixed: function(){
810: //$(this).find(\'.LC_edit_actionbar\').css(\'height\', \'31px\');
811: $(this).find(\'.LC_edit_actionbar\');
812: }
813: }
814: );
815: }
816: );
817: }
818: </script>
819: <table id="LC_edit_problem_colorful" border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
820: return $return;
1.105 albertel 821: }
822:
1.512.2.11 raeburn 823:
1.105 albertel 824: sub problem_edit_footer {
1.512.2.11 raeburn 825: my $resource = $env{'request.ambiguous'};
1.412 albertel 826: return '</td></tr></table><br />
827: <div class="LC_edit_problem_footer">
1.453 bisitz 828: <hr />'.
1.423 www 829: &problem_edit_buttons().'
1.459 bisitz 830: <hr style="clear:both;" />
1.512.2.11 raeburn 831: <script type="text/javascript">
832: restoreState("'.$resource.'");
833: restoreScrollPosition("'.$resource.'");
834: </script>
1.412 albertel 835: </div>
836: '.
1.342 albertel 837: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 838: }
839:
1.235 albertel 840: sub option {
841: my ($value,$name) = @_;
842: my $result ="<option value='".$value."' ";
1.284 albertel 843: if ($env{'form.'.$name} eq $value) {
1.235 albertel 844: $result.=" selected='on' ";
845: }
846: $result.='>';
847: return $result;
848: }
849:
1.105 albertel 850: sub problem_web_to_edit_header {
1.159 albertel 851: my ($rndseed)=@_;
1.406 albertel 852: my $result .= '<div class="LC_edit_problem_header">';
853:
854: if (!$Apache::lonhomework::parsing_a_task) {
855: $result .=
856: '<div class="LC_edit_problem_header_title">'.
857: &mt('Problem Testing').
858: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
859: '</div>';
860: } else {
861: $result .=
862: '<div class="LC_edit_problem_header_title">'.
863: &mt('Task Testing').
864: '</div>';
865: }
866:
1.315 albertel 867: my $show_all_foils_text =
868: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 869: &mt('Show All Instances')
870: : &mt('Show All Foils');
1.315 albertel 871:
1.452 bisitz 872: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
873: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 874: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 875: $show_all.= ' /> '.$show_all_foils_text
876: .'</label></span>';
1.406 albertel 877:
878:
1.384 albertel 879:
1.406 albertel 880: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 881: if (!$Apache::lonhomework::parsing_a_task) {
882: $result.="
1.406 albertel 883: <div class='LC_edit_problem_header_row1'>
884: <span class=\"LC_nobreak\">
1.405 albertel 885: ".&mt("Problem Status:")."
1.235 albertel 886: <select name='problemstate'>
1.270 albertel 887: <option value=''></option>
1.235 albertel 888: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
889: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
890: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
891: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
892: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
893: </select>
1.406 albertel 894: </span>
895: <span class=\"LC_nobreak\">
1.405 albertel 896: ".&mt("Problem Type:")."
1.235 albertel 897: <select name='problemtype'>
1.270 albertel 898: <option value=''></option>
1.512.2.1 raeburn 899: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 900: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 901: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 902: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
903: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
904: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 905: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 906: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 907: </select>
1.406 albertel 908: </span>
909: $show_all
910: </div>
911: <div class='LC_edit_problem_header_row2'>
912: <span class=\"LC_nobreak\">
1.405 albertel 913: ".&mt("Feedback Mode:")."
1.235 albertel 914: <select name='problemstatus'>
915: <option value=''></option>
1.242 albertel 916: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.512.2.6 raeburn 917: ".&option('no', 'problemstatus').&mt("Don't Show Incorrect/Correct Feedback")."</option>
1.405 albertel 918: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 919: </select>
1.406 albertel 920: </span>
921: ";
922:
1.376 albertel 923: } elsif ($Apache::lonhomework::parsing_a_task) {
924: $result.="
1.406 albertel 925: <div class='LC_edit_problem_header_row1'>
926: <span class=\"LC_nobreak\">
1.405 albertel 927: ".&mt("Problem Status:")."
1.376 albertel 928: <select name='problemstate'>
929: <option value=''></option>
930: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
931: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
932: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
933: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
934: </select>
1.406 albertel 935: </span>
936: $show_all
937: ";
938: }
939: $result.='
940: <span class="LC_nobreak">
941: '.&mt('Apply style file: ').'
942: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
943: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
944: </span>
1.422 www 945: </div>
946: <div class="LC_edit_problem_header_row1">'.
947: &Apache::lonxml::renderingoptions().'
1.406 albertel 948: </div>
949: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
950: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
951: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
952: </div>
1.453 bisitz 953: <hr />
1.406 albertel 954: <div class="LC_edit_problem_header_randomize_row">
955: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
956: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 957: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 958: $rndseed.'"
959: onchange="javascript:document.lonhomework.changerandseed.click()" />';
960:
961: if (!$Apache::lonhomework::parsing_a_task) {
962: my $numtoanalyze=$env{'form.numtoanalyze'};
963: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 964: $result .= '<span class="LC_nobreak">'.
965: &mt('[_1] for [_2] versions.',
1.416 raeburn 966: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 967: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
968: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 969: $numtoanalyze.'" size="5" />').
970: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
971: '</span>';
972:
1.313 albertel 973: }
1.406 albertel 974:
975: $result.='
976: </div>
1.453 bisitz 977: <hr />
1.447 bisitz 978: <div>';
1.416 raeburn 979: $result.='<input type="hidden" name="problemmode" value="view" />';
980: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
981: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
982: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
983: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 984: $result.='
985: </div>
1.453 bisitz 986: <hr />
1.409 albertel 987: '.&Apache::lonxml::message_location().'
1.406 albertel 988: </div>';
1.159 albertel 989: return $result;
1.48 albertel 990: }
991:
1.65 albertel 992: sub initialize_storage {
1.357 albertel 993: my ($given_symb) = @_;
1.353 albertel 994: undef(%Apache::lonhomework::results);
995: undef(%Apache::lonhomework::history);
1.357 albertel 996: my ($symb,$courseid,$domain,$name) =
1.367 albertel 997: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 998:
999: # anonymous users (CODEd exams) have no data
1000: if ($name eq 'anonymous'
1001: && !defined($domain)) {
1002: return;
1003: }
1004:
1.333 albertel 1005: if ($env{'request.state'} eq 'construct'
1006: || $symb eq ''
1007: || $Apache::lonhomework::type eq 'practice') {
1008:
1009: my $namespace = $symb || $env{'request.uri'};
1010: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 1011: ($env{'form.resetdata'} eq &mt('New Problem Variation')
1012: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 1013: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1014: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
1015: &Apache::lonxml::debug("Attempt reset");
1016: }
1.159 albertel 1017: %Apache::lonhomework::history=
1.333 albertel 1018: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.512.2.9 raeburn 1019: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1020: &Apache::lonxml::debug("Return message of $temp");
1021: } else {
1022: %Apache::lonhomework::history=
1023: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1024: }
1.353 albertel 1025:
1.159 albertel 1026: #ignore error conditions
1.512.2.9 raeburn 1027: my ($temp)=keys(%Apache::lonhomework::history);
1.159 albertel 1028: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 1029: }
1030:
1.435 jms 1031: =pod
1032:
1033: =item finalize_storage()
1034:
1.512.2.9 raeburn 1035: Stores away the result hash to a student's environment;
1036: checks form.grade_ for specific values, otherwise stores
1037: to the running user's environment.
1038:
1039: &check_correctness_changes() is called in two circumstances
1040: in which the results hash is to be stored permanently, for
1041: grading triggered by a student's submission, where feedback on
1042: correctness is to be provided to the student.
1043:
1044: 1. Immediately prior to storing the results hash
1045:
1046: To handle the case where a student's submission (and award) were
1047: stored after history was retrieved in &initialize_storage(), e.g.,
1048: if a student submitted answers in quick succession (e.g., from
1049: multiple tabs). &Apache::inputtags::hidealldata() is called for
1050: any parts with out-of-order storage (i.e., correct then incorrect,
1051: where awarded >= 1 when correct).
1052:
1053: 2. Immediately after storing the results hash
1054:
1055: To handle the case where lond on the student's homeserver returns
1056: delay:N -- where N is the number of transactions between the last
1057: retrieved in &initialize_storage() and the last stored immediately
1058: before permanent storage of the current transaction via
1059: lond::store_handler(). &Apache::grades::makehidden() is called
1060: for any parts with out-of-order storage (i.e., correct then incorrect,
1061: where awarded >= 1 when correct).
1062:
1063: Will call &store_aggregates() to increment totals for attempts,
1064: students, and corrects, if running user has student role.
1.435 jms 1065:
1066: =cut
1067:
1068:
1.65 albertel 1069: sub finalize_storage {
1.357 albertel 1070: my ($given_symb) = @_;
1.159 albertel 1071: my $result;
1.289 albertel 1072: if (%Apache::lonhomework::results) {
1.323 albertel 1073: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
1074: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 1075: my ($symb,$courseid,$domain,$name) =
1.367 albertel 1076: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 1077: if ($env{'request.state'} eq 'construct'
1078: || $symb eq ''
1079: || $Apache::lonhomework::type eq 'practice') {
1080: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 1081: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 1082: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 1083: $namespace,'',$domain,$name);
1.159 albertel 1084: &Apache::lonxml::debug('Construct Store return message:'.$result);
1085: } else {
1.512.2.9 raeburn 1086: my ($laststore,$checkedparts,@parts,%postcorrect);
1087: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1088: (!$Apache::lonhomework::scantronmode) && (!defined($env{'form.grade_symb'})) &&
1089: (!defined($env{'form.grade_courseid'}))) {
1090: if ($Apache::lonhomework::history{'version'}) {
1091: $laststore = $Apache::lonhomework::history{'version'}.'='.
1092: $Apache::lonhomework::history{'timestamp'};
1093: } else {
1094: $laststore = '0=0';
1095: }
1096: my %record = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1097: if ($record{'version'}) {
1098: my ($newversion,$oldversion,$oldtimestamp);
1099: if ($Apache::lonhomework::history{'version'}) {
1100: $oldversion = $Apache::lonhomework::history{'version'};
1101: $oldtimestamp = $Apache::lonhomework::history{'timestamp'};
1102: } else {
1103: $oldversion = 0;
1104: $oldtimestamp = 0;
1105: }
1106: if ($record{'version'} > $oldversion) {
1107: if ($record{'timestamp'} >= $oldtimestamp) {
1108: $laststore = $record{'version'}.'='.$record{'timestamp'};
1109: $newversion = $record{'version'} + 1;
1110: $checkedparts = 1;
1111: foreach my $key (keys(%Apache::lonhomework::results)) {
1112: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1113: my $part = $1;
1114: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1115: push(@parts,$part);
1116: }
1117: }
1118: }
1119: if (@parts) {
1120: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1121: \%record,\@parts,$newversion,
1122: $oldversion);
1123: if (@parts_to_hide) {
1124: foreach my $part (@parts_to_hide) {
1125: $postcorrect{$part} = 1;
1126: &Apache::inputtags::hidealldata($part);
1127: }
1128: }
1129: }
1130: }
1131: }
1132: }
1133: }
1.159 albertel 1134: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
1.512.2.9 raeburn 1135: $symb,$courseid,$domain,$name,$laststore);
1136: if ($result =~ /^delay\:(\d+)$/) {
1137: my $numtrans = $1;
1138: my ($oldversion) = split(/=/,$laststore);
1139: if ($numtrans) {
1140: my $newversion = $oldversion + 1 + $numtrans;
1141: my @possparts;
1142: if ($checkedparts) {
1143: foreach my $part (@parts) {
1144: unless ($postcorrect{$part}) {
1145: push(@possparts,$part);
1146: }
1147: }
1148: } else {
1149: foreach my $key (keys(%Apache::lonhomework::results)) {
1150: if ($key =~ /^resource\.([^\.]+)\.solved$/) {
1151: my $part = $1;
1152: unless ($postcorrect{$part}) {
1153: if ($Apache::lonhomework::results{$key} eq 'incorrect_attempted') {
1154: push(@possparts,$part);
1155: }
1156: }
1157: }
1158: }
1159: }
1160: if (@possparts) {
1161: my %newrecord = &Apache::lonnet::restore($symb,$courseid,$domain,$name);
1162: my @parts_to_hide = &check_correctness_changes($symb,$courseid,$domain,$name,
1163: \%newrecord,\@possparts,$newversion,
1164: $oldversion);
1165: if (@parts_to_hide) {
1166: my $partslist = join(',',@parts_to_hide);
1167: &Apache::grades::makehidden($newversion,$partslist,\%newrecord,$symb,$domain,$name,1);
1168: }
1169: }
1170: }
1171: }
1.159 albertel 1172: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 1173: &store_aggregates($symb,$courseid);
1.159 albertel 1174: }
1.323 albertel 1175: } else {
1176: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 1177: }
1.159 albertel 1178: return $result;
1.65 albertel 1179: }
1180:
1.435 jms 1181: =pod
1182:
1.512.2.9 raeburn 1183: =item check_correctness_changes()
1184:
1185: For all parts for which current results contain a solved status
1186: of "incorrect_attempted", check if there was a transaction in which
1187: solved was set to "correct_by_student" in the time since the last
1188: transaction (retrieved when &initialize_storage() was called i.e.,
1189: when &start_problem() was called), unless:
1190: (a) questiontype parameter is set to survey or anonymous survey (+/- credit)
1191: (b) problemstatus is set to no or no_feedback_ever
1192: If such a transaction exists, and did not occur after "reset status"
1193: by a user with grading privileges, then the current transaction is an
1194: example of an out-of-order transaction (i.e., incorrect occurring after
1195: correct). Accordingly, the current transaction should be hidden.
1196:
1197: =cut
1198:
1199:
1200: sub check_correctness_changes {
1201: my ($symb,$courseid,$domain,$name,$record,$parts,$newversion,$oldversion) = @_;
1202: my @parts_to_hide;
1203: unless ((ref($record) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
1204: return @parts_to_hide;
1205: }
1206: if (@{$parts}) {
1207: my $usec;
1208: if (($env{'user.name'} eq $name) && ($env{'user.domain'} eq $domain) &&
1209: ($env{'request.course.id'} eq $courseid)) {
1210: $usec = $env{'request.course.sec'};
1211: } else {
1212: $usec = &Apache::lonnet::getsection($domain,$name,$courseid);
1213: }
1214: foreach my $id (@{$parts}) {
1215: next if (($Apache::lonhomework::results{'resource.'.$id.'.type'} =~ /survey/) ||
1216: (&Apache::lonnet::EXT("resource.$id.problemstatus",$symb,
1217: $domain,$name,$usec,undef,$courseid) =~ /^no/));
1218: my $reset;
1219: for (my $i=$newversion-1; $i>=$oldversion; $i--) {
1220: if (($record->{$i.':resource.'.$id.'.regrader'}) &&
1221: ($record->{$i.':resource.'.$id.'.tries'} eq '') &&
1222: ($record->{$i.':resource.'.$id.'.award'} eq '')) {
1223: $reset = 1;
1224: } elsif (($record->{$i.":resource.$id.solved"} eq 'correct_by_student') &&
1225: ($record->{$i.":resource.$id.awarded"} >= 1)) {
1226: unless ($reset) {
1227: push(@parts_to_hide,$id);
1228: last;
1229: }
1230: }
1231: }
1232: }
1233: }
1234: return @parts_to_hide;
1235: }
1236:
1237: =pod
1238:
1.435 jms 1239: item store_aggregates()
1240:
1241: Sends hash of values to be incremented in nohist_resourcetracker.db
1242: for the course. Increments total number of attempts, unique students
1243: and corrects for each part for an instance of a problem, as appropriate.
1244:
1245: =cut
1246:
1.285 raeburn 1247: sub store_aggregates {
1248: my ($symb,$courseid) = @_;
1.479 raeburn 1249: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 1250: my @parts;
1.288 albertel 1251: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
1252: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 1253: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 1254: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 1255: push(@parts, $1);
1.285 raeburn 1256: }
1257: }
1.286 albertel 1258: foreach my $part (@parts) {
1.470 raeburn 1259: if ($env{'request.role'} =~/^st/) {
1260: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
1261: eq 'APPROX_ANS' ||
1262: $Apache::lonhomework::results{'resource.'.$part.'.award'}
1263: eq 'EXACT_ANS') {
1264: $aggregate{$symb."\0".$part."\0correct"} = 1;
1265: }
1266: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1267: $aggregate{$symb."\0".$part."\0users"} = 1;
1268: } else {
1269: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1270: if ($last_reset) {
1271: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1272: $aggregate{$symb."\0".$part."\0users"} = 1;
1273: }
1274: }
1275: }
1276: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 1277: }
1.470 raeburn 1278: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 1279: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
1280: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
1281: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
1282: $randtrycounter{$symb."\0".$part} = 1;
1283: } else {
1284: $anoncounter{$symb."\0".$part} = 1;
1285: }
1.470 raeburn 1286: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
1287: if ($needsrelease) {
1288: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
1289: if ($curr_required eq '') {
1.471 raeburn 1290: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1291: } else {
1292: my ($currmajor,$currminor) = split(/\./,$curr_required);
1293: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
1294: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 1295: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 1296: }
1.292 raeburn 1297: }
1298: }
1.285 raeburn 1299: }
1300: }
1.512.2.9 raeburn 1301: if (keys(%aggregate) > 0) {
1.289 albertel 1302: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 1303: $cdomain,$cname);
1304: }
1.472 raeburn 1305: if (keys(%anoncounter) > 0) {
1.481 raeburn 1306: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
1307: $cdomain,$cname);
1.472 raeburn 1308: }
1.479 raeburn 1309: if (keys(%randtrycounter) > 0) {
1.481 raeburn 1310: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
1311: $cdomain,$cname);
1.479 raeburn 1312: }
1.292 raeburn 1313: }
1.289 albertel 1314:
1.65 albertel 1315: sub checkout_msg {
1.211 albertel 1316: my %lt=&Apache::lonlocal::texthash(
1317: 'resource'=>'The resource needs to be checked out',
1318: '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.',
1319: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
1.512.2.1 raeburn 1320: 'checkout'=>'Check out Exam for Viewing',
1321: 'checkout?'=>'Check out Exam?');
1.352 albertel 1322: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 1323: return (<<ENDCHECKOUT);
1.211 albertel 1324: <h2>$lt{'resource'}</h2>
1325: <p>$lt{'id_expln'}</p>
1.449 bisitz 1326: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 1327: <form name="checkout" method="post" action="$uri">
1.91 albertel 1328: <input type="hidden" name="doescheckout" value="yes" />
1.512.2.4 raeburn 1329: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onclick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 1330: </form>
1331: ENDCHECKOUT
1332: }
1333:
1.252 albertel 1334: sub firstaccess_msg {
1.253 albertel 1335: my ($time,$symb)=@_;
1.414 albertel 1336: my $result;
1337: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1338: if ($interval[1] eq 'map') {
1339: my ($map)=&Apache::lonnet::decode_symb($symb);
1340: my $foldertitle=&Apache::lonnet::gettitle($map);
1341:
1342: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.504 golterma 1343: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$foldertitle)."</h2>"
1344: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1345: ,$foldertitle,$time)."</p>";
1.414 albertel 1346: } elsif ($interval[1] eq 'course') {
1347: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.504 golterma 1348: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.',$course)."</h2>"
1.505 golterma 1349: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
1.504 golterma 1350: ,$course,$time)."</p>";
1.414 albertel 1351: } else {
1352: my $title=&Apache::lonnet::gettitle($symb);
1.504 golterma 1353: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.',$title)."</h2>"
1354: .'<p>'.&mt('Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
1355: ,$title,$time)."</p>";
1.414 albertel 1356: }
1.352 albertel 1357: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 1358: my $buttontext = &mt('Show Resource');
1359: my $timertext = &mt('Start Timer?');
1.414 albertel 1360: $result .= (<<ENDCHECKOUT);
1.444 bisitz 1361: <form name="markaccess" method="post" action="$uri">
1.252 albertel 1362: <input type="hidden" name="markaccess" value="yes" />
1.512.2.4 raeburn 1363: <input type="button" name="accessbutton" value="$buttontext" onclick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 1364: </form>
1365: ENDCHECKOUT
1.414 albertel 1366: return $result;
1.252 albertel 1367: }
1368:
1.204 albertel 1369: sub init_problem_globals {
1370: my ($type)=@_;
1371: #initialize globals
1.308 foxr 1372: # For problems, we start out in part 0 (outside a <part> tag).
1373: # and part 0 is used to describe the main body of the <problem>
1374: #
1.204 albertel 1375: if ($type eq 'problem') {
1376: $Apache::inputtags::part='0';
1377: @Apache::inputtags::partlist=('0');
1.405 albertel 1378: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 1379: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 1380:
1.266 albertel 1381: } elsif ($type eq 'library') {
1.204 albertel 1382: $Apache::inputtags::part='';
1383: @Apache::inputtags::partlist=();
1.405 albertel 1384: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 1385: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 1386:
1.304 albertel 1387: } elsif ($type eq 'Task') {
1388: $Apache::inputtags::part='0';
1389: @Apache::inputtags::partlist=('0');
1.405 albertel 1390: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 1391: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 1392: }
1.477 www 1393: @Apache::functionplotresponse::callscripts=();
1.204 albertel 1394: @Apache::inputtags::responselist = ();
1395: @Apache::inputtags::importlist = ();
1396: @Apache::inputtags::previous=();
1397: @Apache::inputtags::previous_version=();
1.512.2.10 raeburn 1398: $Apache::inputtags::leniency='';
1.204 albertel 1399: $Apache::structuretags::printanswer='No';
1400: @Apache::structuretags::whileconds=();
1401: @Apache::structuretags::whilebody=();
1402: @Apache::structuretags::whileline=();
1403: $Apache::lonhomework::scantronmode=0;
1404: undef($Apache::lonhomework::name);
1.358 albertel 1405: undef($Apache::lonhomework::default_type);
1406: undef($Apache::lonhomework::type);
1.204 albertel 1407: }
1408:
1409: sub reset_problem_globals {
1410: my ($type)=@_;
1411: undef(%Apache::lonhomework::history);
1412: undef(%Apache::lonhomework::results);
1413: undef($Apache::inputtags::part);
1.512.2.10 raeburn 1414: undef($Apache::inputtags::leniency);
1.498 raeburn 1415: if ($type eq 'Task') {
1416: undef($Apache::inputtags::slot_name);
1.512.2.9 raeburn 1417: } elsif ($type eq 'problem') {
1418: undef($Apache::lonhomework::rawrndseed);
1.498 raeburn 1419: }
1.208 albertel 1420: #don't undef this, lonhomework.pm takes care of this, we use this to
1421: #detect if we try to do 2 problems in one file
1422: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 1423: undef($Apache::lonhomework::name);
1.358 albertel 1424: undef($Apache::lonhomework::default_type);
1425: undef($Apache::lonhomework::type);
1426: undef($Apache::lonhomework::scantronmode);
1427: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 1428: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 1429: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 1430: }
1431:
1.241 albertel 1432: sub set_problem_state {
1.240 albertel 1433: my ($part)=@_;
1.284 albertel 1434: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 1435: $Apache::lonhomework::history{"resource.$part.solved"}=
1436: 'correct_by_student';
1437: }
1438: }
1439:
1.241 albertel 1440: sub get_problem_status {
1441: my ($part)=@_;
1.267 albertel 1442: my $problem_status;
1.284 albertel 1443: if ($env{'request.state'} eq 'construct' &&
1444: defined($env{'form.problemstatus'})) {
1445: $problem_status=$env{'form.problemstatus'};
1.267 albertel 1446: } else {
1447: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
1448: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 1449: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 1450: }
1451: return $problem_status;
1452: }
1453:
1.9 albertel 1454: sub start_problem {
1.326 albertel 1455: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1456:
1.311 foxr 1457: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1458: if (!$Apache::lonxml::metamode) {
1459: &Apache::lonxml::startredirection();
1460: }
1.311 foxr 1461:
1.308 foxr 1462: # Problems don't nest and we don't allow more than one <problem> in
1463: # a .problem file.
1464: #
1.184 albertel 1465: if ( $Apache::inputtags::part ne '' ||
1466: $Apache::lonhomework::parsing_a_problem) {
1467: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1468: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1469: return '';
1470: }
1.184 albertel 1471:
1472: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1473: &init_problem_globals('problem');
1.166 albertel 1474:
1.284 albertel 1475: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1476: $Apache::lonhomework::scantronmode=1;
1477: }
1.161 albertel 1478:
1.159 albertel 1479: if ($target ne 'analyze') {
1.415 raeburn 1480: my $type = &Apache::lonnet::EXT('resource.0.type');
1481: $Apache::lonhomework::type=$type;
1.284 albertel 1482: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1483: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1484: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1485: }
1.332 albertel 1486: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1487: }
1.164 albertel 1488: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1489: my $uri=$env{'request.uri'};
1.159 albertel 1490: if ($uri=~/\.(\w+)$/) {
1491: $Apache::lonhomework::type=$1;
1492: &Apache::lonxml::debug("Using type of $1");
1493: } else {
1494: $Apache::lonhomework::type='problem';
1495: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1496: }
1.87 albertel 1497: }
1.301 albertel 1498: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1499:
1.363 albertel 1500: &initialize_storage();
1.389 albertel 1501: if ($target ne 'analyze'
1502: && $env{'request.state'} eq 'construct') {
1503: &set_problem_state('0');
1504: }
1505:
1.366 albertel 1506: if ($target eq 'web') {
1507: &Apache::lonxml::debug(" grading history ");
1508: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1509: }
1.363 albertel 1510:
1.159 albertel 1511: #added vars to the scripting enviroment
1.213 albertel 1512: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1513: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1514: &Apache::run::run($expression,$safeeval);
1.159 albertel 1515: my $status;
1516: my $accessmsg;
1.508 raeburn 1517: my $resource_due;
1.159 albertel 1518:
1.343 albertel 1519: my $name= &get_resource_name($parstack,$safeeval);
1.512.2.9 raeburn 1520: my ($result,$form_tag_start,$slot_name,$slot,$probpartlist);
1.506 raeburn 1521:
1522: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1523: $target eq 'tex') {
1524: if ($env{'form.markaccess'}) {
1525: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1.512.2.13.2. (raeburn 1526:): my ($timelimit) = ($interval[0] =~ /^(\d+)/);
1527:): &Apache::lonnet::set_first_access($interval[1],$timelimit);
1.506 raeburn 1528: }
1529:
1530: ($status,$accessmsg,$slot_name,$slot) =
1531: &Apache::lonhomework::check_slot_access('0','problem');
1532: push (@Apache::inputtags::status,$status);
1533: }
1534:
1.354 albertel 1535: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1536: || $target eq 'edit') {
1.512.2.9 raeburn 1537: ($result,$form_tag_start,$probpartlist) =
1.350 albertel 1538: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1539: $name);
1.512.2.9 raeburn 1540: } elsif (($target eq 'grade') && ($Apache::lonhomework::type eq 'randomizetry')) {
1541: my ($symb)= &Apache::lonnet::whichuser();
1542: my $navmap = Apache::lonnavmaps::navmap->new();
1543: if (ref($navmap)) {
1544: my $res = $navmap->getBySymb($symb);
1545: if (ref($res)) {
1546: $probpartlist = $res->parts();
1547: }
1548: }
1.350 albertel 1549: }
1550:
1.284 albertel 1551: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1552:
1.479 raeburn 1553: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1554: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1555: $target eq 'tex') {
1.479 raeburn 1556:
1.159 albertel 1557: #handle rand seed in construction space
1.512.2.9 raeburn 1558: my $rndseed=&setup_rndseed($safeeval,$target,$probpartlist);
1559: if (($target eq 'grade') && &Apache::response::submitted()) {
1560: if ($Apache::lonhomework::type eq 'randomizetry') {
1561: $Apache::lonhomework::results{'resource.0.rndseed'}=$rndseed;
1562: } else {
1563: my @parts;
1564: if (ref($probpartlist) eq 'ARRAY') {
1565: @parts = @{$probpartlist};
1566: }
1567: unless (@parts) {
1568: $Apache::lonhomework::results{'resource.0.rndseed'}=$Apache::lonhomework::rawrndseed;
1569: }
1570: }
1571: }
1.367 albertel 1572: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 1573:
1.333 albertel 1574: if ($env{'request.state'} ne "construct" &&
1575: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1576: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1577: $rndseed.'" />'.
1578: '<input type="submit" name="resetdata"
1579: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1580: if (exists($env{'form.username'})) {
1581: $form_tag_start.=
1.164 albertel 1582: '<input type="hidden" name="username"
1.284 albertel 1583: value="'.$env{'form.username'}.'" />';
1.334 albertel 1584: }
1.462 raeburn 1585: if ($env{'request.role.adv'}) {
1586: $form_tag_start.= ' <label class="LC_nobreak">'
1587: .'<input type="checkbox" name="showallfoils"';
1588: if (defined($env{'form.showallfoils'})) {
1589: $form_tag_start.=' checked="checked"';
1590: }
1591: $form_tag_start.= ' /> '
1592: .&mt('Show All Foils')
1593: .'</label>';
1594: }
1.417 www 1595: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1596: $form_tag_start.=&practice_problem_header();
1.417 www 1597: }
1.462 raeburn 1598: $form_tag_start.='<hr />';
1.479 raeburn 1599: } elsif (($env{'request.state'} ne "construct") &&
1600: ($Apache::lonhomework::type eq 'randomizetry') &&
1601: ($status eq 'CAN_ANSWER')) {
1602: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1603: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1604: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1605: }
1.324 albertel 1606:
1.159 albertel 1607: my $expression='$external::datestatus="'.$status.'";';
1608: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1609: &Apache::run::run($expression,$safeeval);
1610: &Apache::lonxml::debug("Got $status");
1.324 albertel 1611:
1.159 albertel 1612: if (( $status eq 'CLOSED' ) ||
1613: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1614: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1615: ( $status eq 'BANNED') ||
1.216 albertel 1616: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1617: ( $status eq 'NOT_IN_A_SLOT') ||
1.499 raeburn 1618: ( $status eq 'NOTRESERVABLE') ||
1619: ( $status eq 'RESERVABLE') ||
1620: ( $status eq 'RESERVABLE_LATER') ||
1.216 albertel 1621: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1622: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1623: $style);
1.159 albertel 1624: if ( $target eq "web" ) {
1.343 albertel 1625: my $msg;
1.159 albertel 1626: if ($status eq 'UNAVAILABLE') {
1.504 golterma 1627: $msg.='<p class="LC_error">'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</p>';
1.441 raeburn 1628: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.504 golterma 1629: $msg.='<p class="LC_warning">'.&mt('You are not currently signed up to work at this time and/or place.').'</p>';
1.499 raeburn 1630: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
1631: ($status eq 'NOTRESERVABLE')) {
1.504 golterma 1632: $msg.='<p class="LC_warning">'.&mt('Access requires reservation to work at specific time/place.').'</p>';
1.253 albertel 1633: } elsif ($status ne 'NOT_YET_VIEWED') {
1.504 golterma 1634: $msg.='<p class="LC_warning">'.&mt('Not open to be viewed').'</p>';
1.499 raeburn 1635: }
1.216 albertel 1636: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1637: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1638: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1639: $msg.=&checkout_msg();
1.252 albertel 1640: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1641: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1642: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1643: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.499 raeburn 1644: } elsif ($status eq 'RESERVABLE') {
1645: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
1646: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
1647: '<br />'.
1648: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1649: } elsif ($status eq 'RESERVABLE_LATER') {
1650: $msg.=&mt('Window to make a reservation will open [_1].',
1651: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
1652: } elsif ($status eq 'NOTRESERVABLE') {
1653: $msg.=&mt('Not available to make a reservation.');
1.159 albertel 1654: }
1655: $result.=$msg.'<br />';
1656: } elsif ($target eq 'tex') {
1.332 albertel 1657: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1658: : '\begin{minipage}{\textwidth}';
1.443 foxr 1659: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1660: $startminipage.'\vskip 0 mm';
1.159 albertel 1661: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1662: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1663: } else {
1.211 albertel 1664: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1665: }
1666: }
1.324 albertel 1667: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1668: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1669: $style);
1.324 albertel 1670: if ($target eq 'web') {
1.375 albertel 1671: $result .=
1672: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1673: } elsif ($target eq 'grade') {
1674: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1675: 'problem');
1676: }
1.159 albertel 1677: } elsif ($target eq 'web') {
1.508 raeburn 1678: if ($status eq 'CAN_ANSWER') {
1679: $resource_due = &Apache::lonhomework::due_date(0, $env{'request.symb'});
1680: if ($slot_name ne '') {
1681: my $checked_in =
1682: $Apache::lonhomework::history{'resource.0.checkedin'};
1683: if ($checked_in eq '') {
1684: # unproctored slot access, self checkin
1685: &Apache::bridgetask::check_in('problem',undef,undef,
1686: $slot_name);
1687: $checked_in =
1688: $Apache::lonhomework::results{"resource.0.checkedin"};
1689: }
1690: if ((ref($slot) eq 'HASH') && ($checked_in ne '')) {
1691: if ($slot->{'starttime'} < time()) {
1692: if (!$resource_due) {
1693: $resource_due = $slot->{'endtime'};
1694: } elsif ($slot->{'endtime'} < $resource_due) {
1695: $resource_due = $slot->{'endtime'};
1696: }
1697: }
1698: }
1699: }
1700: if ($resource_due) {
1701: my $time_left = $resource_due - time();
1702: if ($resource_due && ($time_left > 0) && ($target eq 'web')) {
1703: $result .= &Apache::lonhtmlcommon::set_due_date($resource_due);
1704: }
1705: }
1706: }
1.368 albertel 1707: $result.="\n $form_tag_start \t".
1.227 albertel 1708: '<input type="hidden" name="submitted" value="yes" />';
1709: # create a page header and exit
1.284 albertel 1710: if ($env{'request.state'} eq "construct") {
1711: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1712: if ($Apache::lonhomework::type eq 'practice') {
1713: $result.= '<input type="submit" name="resetdata" '.
1714: 'value="'.&mt('New Problem Variation').'" />'.
1715: &practice_problem_header().'<hr />';
1716: }
1.227 albertel 1717: }
1718: # if we are viewing someone else preserve that info
1.284 albertel 1719: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1720: foreach my $field ('symb','courseid','domain','username') {
1721: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1722: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1723: }
1.479 raeburn 1724: foreach my $field ('trial','questiontype') {
1725: if ($env{"form.grade_$field"} ne '') {
1726: $result .= '<input type="hidden" name="grade_'.$field.
1727: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1728: }
1729: }
1.159 albertel 1730: }
1.490 raeburn 1731: if ($env{'form.grade_imsexport'}) {
1732: $result = '';
1733: }
1.159 albertel 1734: } elsif ($target eq 'tex') {
1.319 foxr 1735: $result .= 'INSERTTEXFRONTMATTERHERE';
1.500 foxr 1736: $result .= &select_metadata_hyphenation();
1737:
1.319 foxr 1738:
1.99 sakharuk 1739: }
1.159 albertel 1740: } elsif ($target eq 'edit') {
1.343 albertel 1741: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1742: $Apache::lonxml::warnings_error_header=
1743: &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 1744: my $temp=&Apache::edit::insertlist($target,$token);
1745: $result.=$temp;
1746: } elsif ($target eq 'modified') {
1747: $result=$token->[4];
1748: } else {
1749: # page_start returned a starting result, delete it if we don't need it
1750: $result = '';
1.99 sakharuk 1751: }
1.159 albertel 1752: return $result;
1.9 albertel 1753: }
1754:
1755: sub end_problem {
1.159 albertel 1756: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1757: my $result;
1.310 foxr 1758:
1.321 albertel 1759: if (!$Apache::lonxml::metamode) {
1760: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1761: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1762: }
1.319 foxr 1763:
1764: if ($target eq 'tex') {
1.321 albertel 1765: # Figure out the front matter and replace the
1766: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1767: # this in end_problem because whether or not we display due
1768: # dates depends on whether due dates have already been
1769: # displayed in the problem parts.
1770:
1.319 foxr 1771: my $frontmatter = '';
1772: my $startminipage = '';
1773: if (not $env{'form.problem_split'}=~/yes/) {
1774: $startminipage = '\begin{minipage}{\textwidth}';
1775: }
1776: my $id = $Apache::inputtags::part;
1777: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1778: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.512.2.9 raeburn 1779: my @packages = split(/,/,$packages);
1.319 foxr 1780: my $allow_print_points = 0;
1781: foreach my $partial_key (@packages) {
1782: if ($partial_key=~m/^part_0$/) {
1783: $allow_print_points=1;
1784: }
1785: }
1786: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1787: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1788: if (lc($env{'course.'.$env{'request.course.id'}.
1789: '.disableexampointprint'}) eq 'yes') {
1790: $allow_print_points=0;
1791: }
1792: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1793: 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 1794: &clear_required_languages();
1.319 foxr 1795: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1796: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1797:
1798: # Figure out what the due date is and if we need to print
1799: # it in the problem header. We have been logging the
1800: # last due date written to file.
1801:
1802: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1803: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1804: my $duedate_text = &mt('Due date: [_1]'
1805: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1806: my $temp_file;
1807: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1808:
1809: # Figure out what the last printed due date is or set it
1810: # to the epoch if no duedates have been printed.
1811:
1812: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1813: if (-e $filename) {
1814: $temp_file = Apache::File->new($filename);
1815: my @due_file = <$temp_file>;
1816: $due_file_content = $due_file[$#due_file];
1817: chomp $due_file_content;
1818: }
1819:
1820: # We display the due date iff it is not the same as the last
1821: # duedate in problem header ($due_file_content), and
1822: # none of our parts displayed a duedate.
1823: #
1824: my $parts_with_displayduedate;
1825: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1826: $parts_with_displayduedate =
1827: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1828: } else {
1829: $parts_with_displayduedate = 0;
1830: }
1831: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1832: $temp_file = Apache::File->new('>'.$filename);
1833: print $temp_file "$duetime\n";
1834: if (not $env{'request.symb'} =~ m/\.page_/) {
1835: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1836: $frontmatter .= $begin_doc.
1.448 bisitz 1837: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1838: } else {
1839: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1840: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1841: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1842: }
1.319 foxr 1843: }
1844: } else {
1.448 bisitz 1845: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1846: }
1847: } else {
1848: if (not $env{'request.symb'} =~ m/\.page_/) {
1849: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1850: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1851: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1852: }
1.319 foxr 1853: } else {
1.381 albertel 1854: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1855: }
1856: }
1857: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1858: }
1859:
1.159 albertel 1860: my $status=$Apache::inputtags::status['-1'];
1861: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1862: $target eq 'tex') {
1.249 albertel 1863: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1864: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1865: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1866: &Apache::inputtags::grade;
1.324 albertel 1867: } elsif ($status eq 'NEEDS_CHECKIN') {
1868: # no need to grade, and don't want to hide data
1.249 albertel 1869: } else {
1870: # move any submission data to .hidden
1871: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1872: }
1.159 albertel 1873: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1874: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1875: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1876: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1877: # if part is zero, no <part>s existed, so we need show the current
1878: # grading status
1879: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1880: $result.= $gradestatus;
1881: }
1882: if (
1.284 albertel 1883: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1884: ($target eq 'answer') || ($target eq 'tex')
1885: ) {
1.490 raeburn 1886: if (($target ne 'tex') &&
1887: ($env{'form.answer_output_mode'} ne 'tex') &&
1888: (!$env{'form.grade_imsexport'})) {
1.254 www 1889: $result.="</form>";
1.159 albertel 1890: }
1891: if ($target eq 'web') {
1.507 raeburn 1892: #
1893: # Closing </body></html> not added by end_page().
1894: # Added separately at end of this routine, after added
1895: # <script></script> so document will be valid xhtml.
1896: #
1897: $result.= &Apache::loncommon::end_page({'discussion' => 1,
1898: 'notbody' => 1});
1.159 albertel 1899: } elsif ($target eq 'tex') {
1.178 sakharuk 1900: my $endminipage = '';
1.284 albertel 1901: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1902: $endminipage = '\end{minipage}';
1903: }
1.284 albertel 1904: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1905: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1906: } else {
1.262 sakharuk 1907: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1908: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1909: $result .= $endminipage.'\end{document} ';
1910: } else {
1.382 albertel 1911: $result .= $endminipage;
1.262 sakharuk 1912: }
1.159 albertel 1913: }
1914: }
1915: }
1.476 www 1916: if ($target eq 'web') {
1917: $result.=&Apache::functionplotresponse::init_script();
1918: }
1.159 albertel 1919: if ($target eq 'grade') {
1920: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1921: &finalize_storage();
1922: }
1.284 albertel 1923: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1924: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1925: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1926: # normally we get it from above, but in CSTR
1.172 albertel 1927: # we always show answer mode too.
1.159 albertel 1928: }
1929: } elsif ($target eq 'meta') {
1930: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1931: @Apache::inputtags::response=();
1.159 albertel 1932: $result=&Apache::response::mandatory_part_meta;
1933: }
1.215 albertel 1934: $result.=&Apache::response::meta_part_order();
1.258 albertel 1935: $result.=&Apache::response::meta_response_order();
1.159 albertel 1936: } elsif ($target eq 'edit') {
1937: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1938: $result .= &problem_edit_footer();
1.320 albertel 1939: } elsif ($target eq 'modified') {
1940: $result .= $token->[2];
1.159 albertel 1941: }
1.155 albertel 1942:
1.284 albertel 1943: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1944: &Apache::inputtags::check_for_duplicate_ids();
1945: }
1.204 albertel 1946:
1947: &reset_problem_globals('problem');
1.159 albertel 1948:
1.502 foxr 1949: #
1950: # This shouild be just above the return so that the
1951: # time put in the javascript is as late as possible in the
1952: # computation:
1953: #
1954: if ($target eq 'web') {
1955: $result .= &Apache::lonhtmlcommon::set_compute_end_time();
1.507 raeburn 1956: #
1957: # Closing tags delayed so any <script></script> tags
1958: # not in head can appear inside body, for valid xhtml.
1959: #
1960: $result .= "</body>\n</html>";
1.502 foxr 1961: }
1.159 albertel 1962: return $result;
1.48 albertel 1963: }
1964:
1.108 albertel 1965:
1.48 albertel 1966: sub start_library {
1.159 albertel 1967: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1968: my ($result,$form_tag_start);
1.371 albertel 1969: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1970: &init_problem_globals('library');
1971: $Apache::lonhomework::type='problem';
1972: }
1.159 albertel 1973: if ($target eq 'edit') {
1.343 albertel 1974: ($result,$form_tag_start)=
1975: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1976: 'Edit');
1977: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1978: my $temp=&Apache::edit::insertlist($target,$token);
1979: $result.=$temp;
1980: } elsif ($target eq 'modified') {
1981: $result=$token->[4];
1.340 albertel 1982: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1983: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1984: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1985: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1986: ($result,$form_tag_start)=
1987: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1988: $name);
1.479 raeburn 1989: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 1990: $result.=" \n $form_tag_start".
1.159 albertel 1991: '<input type="hidden" name="submitted" value="yes" />';
1992: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1993: if ($Apache::lonhomework::type eq 'practice') {
1994: $result.= '<input type="submit" name="resetdata" '.
1995: 'value="'.&mt('New Problem Variation').'" />'.
1996: &practice_problem_header().'<hr />';
1997: }
1.159 albertel 1998: }
1999: return $result;
1.48 albertel 2000: }
2001:
2002: sub end_library {
1.159 albertel 2003: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2004: my $result='';
2005: if ($target eq 'edit') {
2006: $result=&problem_edit_footer();
1.371 albertel 2007: } elsif ($target eq 'web'
2008: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
2009: && $env{'request.state'} eq "construct") {
1.349 albertel 2010: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 2011: }
1.371 albertel 2012: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
2013: &reset_problem_globals('library');
2014: }
1.159 albertel 2015: return $result;
1.197 www 2016: }
2017:
2018: sub start_definetag {
1.326 albertel 2019: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 2020:
2021: my $result;
2022:
2023: my $name = $token->[2]->{'name'};
1.326 albertel 2024: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 2025: if ($target eq 'web') {
2026: if ($name=~/^\//) {
2027: $result=
2028: '<br /><table class="LC_sty_end"><tr><th>'.
2029: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2030: } else {
2031: $result=
2032: '<br /><table class="LC_sty_begin"><tr><th>'.
2033: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
2034: }
2035: $skip = &HTML::Entities::encode($skip, '<>&"');
2036: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 2037: }
2038: return $result;
2039: }
2040:
2041: sub end_definetag {
2042: return '';
1.1 albertel 2043: }
2044:
2045: sub start_block {
1.201 albertel 2046: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 2047:
2048: my $result;
1.1 albertel 2049:
1.339 albertel 2050: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2051: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 2052: my $code = $token->[2]->{'condition'};
1.385 albertel 2053: if (defined($code) && $code ne '') {
1.137 albertel 2054: if (!$Apache::lonxml::default_homework_loaded) {
2055: &Apache::lonxml::default_homework_load($safeeval);
2056: }
1.131 albertel 2057: $result = &Apache::run::run($code,$safeeval);
2058: &Apache::lonxml::debug("block :$code: returned :$result:");
2059: } else {
2060: $result='1';
2061: }
2062: if ( ! $result ) {
1.201 albertel 2063: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 2064: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2065: }
2066: $result='';
2067: } elsif ($target eq 'edit') {
2068: $result .=&Apache::edit::tag_start($target,$token);
2069: $result .=&Apache::edit::text_arg('Test Condition:','condition',
2070: $token,40);
2071: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2072: } elsif ($target eq 'modified') {
2073: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2074: $safeeval,'condition');
2075: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 2076: }
1.131 albertel 2077: return $result;
1.1 albertel 2078: }
2079:
2080: sub end_block {
1.167 www 2081: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2082: my $result;
2083: if ($target eq "edit") {
2084: $result.= &Apache::edit::tag_end($target,$token,'');
2085: }
2086: return $result;
2087: }
1.500 foxr 2088: #
2089: # <languageblock [include='lang1,lang2...'] [exclude='lang1,lang2...']>
2090: # ...
2091: # </languageblock>
2092: #
2093: # This declares the intent to provide content that can be rendered in the
2094: # set of languages in the include specificatino but not in the exclude
2095: # specification. If a currently preferred language is in the include list
2096: # the content in the <languageblock>...</languageblock> is rendered
2097: # If the currently preferred language is in the exclude list,
2098: # the content in the <languageblock>..></languageblock is not rendered.
2099: #
2100: # Pathalogical case handling:
2101: # - Include specified, without the preferred language but exclude specified
2102: # also without the preferred langauge results in rendering the block.
2103: # - Exclude specified without include and excluden not containing a
2104: # preferred language renders the block.
2105: # - Include and exclude both specifying the preferred language does not
2106: # render the block.
2107: # - If neither include/exclude is specified, the block gets rendered.
2108: #
2109: # This tag has no effect when target is in {edit, modified}
2110: #
1.167 www 2111: sub start_languageblock {
1.201 albertel 2112: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 2113:
1.500 foxr 2114: my $result = '';
1.167 www 2115:
1.339 albertel 2116: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2117: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 2118: my $include = $token->[2]->{'include'};
2119: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 2120: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.500 foxr 2121:
2122: # This should not even happen, since we should at least have the server language
2123:
2124: if (!$preferred_languages[0]) {
2125: $preferred_languages[0]='en';
2126: }
2127:
2128: # Now loop over all languages in order of preference
2129:
2130: my $render;
1.398 www 2131: foreach my $preferred_language (@preferred_languages) {
1.500 foxr 2132:
2133: # If neither include/nor exlude is present the block is going
2134: # to get rendered.
2135:
1.399 www 2136: my $found=0;
1.500 foxr 2137: $render=1;
2138:
2139: # If include is specified, don't render the block
2140: # unless the preferred language is included in the set.
2141:
1.398 www 2142: if ($include) {
1.500 foxr 2143: $render=0;
1.398 www 2144: foreach my $included_language (split(/\,/,$include)) {
2145: if ($included_language eq $preferred_language) {
1.500 foxr 2146: $render=1;
1.399 www 2147: $found=1;
1.500 foxr 2148: last; # Only need to find the first.
1.398 www 2149: }
2150: }
2151: }
1.500 foxr 2152: # Do we have an exclude argument?
2153: # If so, and one of the languages matches a preferred language
2154: # inhibit rendering the block. Note that in the pathalogical case the
2155: # author has specified a preferred language in both the include and exclude
2156: # attribte exclude is preferred.
2157:
1.398 www 2158: if ($exclude) {
1.500 foxr 2159: $render=1;
1.398 www 2160: foreach my $excluded_language (split(/\,/,$exclude)) {
2161: if ($excluded_language eq $preferred_language) {
1.500 foxr 2162: $render=0;
1.399 www 2163: $found=1;
1.500 foxr 2164: last; # Only need to find the first.
1.398 www 2165: }
2166: }
2167: }
1.500 foxr 2168: if ($found) {
2169: last; # Done on any match of include or exclude.
2170: }
1.398 www 2171: }
1.500 foxr 2172: # If $render not true skip the entire block until </languageblock>
2173: #
2174:
2175: if ( ! $render ) {
1.201 albertel 2176: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
2177: $style);
2178: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2179: }
1.500 foxr 2180: # If $render is true, we've not skipped the contents of the <languageglock>
2181: # and the normal loncapa processing flow will render it as a matter of course.
2182:
1.167 www 2183: } elsif ($target eq 'edit') {
2184: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2185: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 2186: $token,40);
1.211 albertel 2187: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 2188: $token,40);
2189: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2190: } elsif ($target eq 'modified') {
2191: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 2192: $safeeval,'include',
2193: 'exclude');
1.167 www 2194: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2195: }
2196: return $result;
2197: }
2198:
2199: sub end_languageblock {
1.170 www 2200: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2201: my $result;
1.201 albertel 2202: if ($target eq "edit") {
1.170 www 2203: $result.= &Apache::edit::tag_end($target,$token,'');
2204: }
2205: return $result;
2206: }
1.500 foxr 2207: # languagblock specific tags:
2208: {
2209: # For chunks of a resource that has translations, this hash contains
2210: # the translations available indexed by language name.
2211: #
2212:
2213: my %available_texts;
1.170 www 2214:
1.500 foxr 2215: # <translated> starts a block of a resource that has multiple translations.
2216: # See the <lang> tag as well.
2217: # When </translated> is encountered if there is a translation for the
2218: # currently preferred language, that is rendered inthe web/tex/webgrade
2219: # targets. Otherwise, the default text is rendered.
2220: #
2221: # Note that <lang> is only registered for the duration of the
2222: # <translated>...</translated> block
2223: #
2224: # Pathalogical case handling:
2225: # - If there is no <lang> that specifies a 'default' and there is no
2226: # translation that matches a preferred language, nothing is rendered.
2227: # - Nested <translated>...</translated> might be linguistically supported by
2228: # XML due to the stack nature of tag registration(?) however the rendered
2229: # output will be incorrect because there is only one %available_texts
2230: # has and end_translated clears it.
2231: # - Material outside of a <lang>...</lang> block within the
2232: # <translated>...<translated> block won't render either e.g.:
2233: # <translated>
2234: # The following will be in your preferred langauge:
2235: # <lang which='en'>
2236: # This section in english
2237: # </lang>
2238: # <lang which='sgeiso'>
2239: # Hier es ist auf Deutsch.
2240: # </lang>
2241: # <lang which='sfriso'>
2242: # En Francais
2243: # </lang>
2244: # </translated>
2245: #
2246: # The introductory text prior to the first <lang> tag is not rendered.
2247: #
1.397 albertel 2248: sub start_translated {
2249: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2250: &Apache::lonxml::register('Apache::structuretags',('lang'));
2251: undef(%available_texts);
2252: }
2253:
2254: sub end_translated {
2255: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2256: my $result;
2257: #show the translation on viewable targets
2258: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
2259: # or non-viewable targets, if it's embedded in something that
2260: # wants the output
2261: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
2262: && &Apache::lonxml::in_redirection() ) ) {
2263: my @possibilities = keys(%available_texts);
2264: my $which =
2265: &Apache::loncommon::languages(\@possibilities) || 'default';
1.500 foxr 2266: if ($target eq 'tex') {
2267: $result = &select_hyphenation($which);
2268: }
2269: $result .= $available_texts{$which};
2270: if ($target eq 'tex') {
2271: $result .= &select_metadata_hyphenation(); # Restore original language.
2272: }
1.397 albertel 2273: }
2274: undef(%available_texts);
2275: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
2276: return $result;
2277: }
2278:
1.500 foxr 2279: # <lang [which='language-name'] [other='lang1,lang2...']>
2280: # Specifies that the block contained within it is a translation
2281: # for a specific language specified by the 'which' attribute. The
2282: # 'other' attribute can be used by itself or in conjunction with
2283: # which to specify this tag _may_ be used as a translation for some
2284: # list of languages. e.g.: <lang which='senisoUS' other='senisoCA,senisoAU,seniso'>
2285: # specifying that the block provides a translation for US (primary)
2286: # Canadian, Australian and UK Englush.
2287: #
2288: # Comment: this seems a bit silly why not just support a list of languages
2289: # e.g. <lang which='l1,l2...'> and ditch the other attribute?
2290: #
2291: # Effect:
2292: # The material within the <lang>..</lang> block is stored in the
2293: # specified set of $available_texts hash entries, the appropriate one
2294: # is selected at </translated> time.
2295: #
2296: # Pathalogical case handling:
2297: # If a language occurs multiple times within a <translated> block,
2298: # only the last one is rendered e.g.:
2299: #
2300: # <translated>
2301: # <lang which='senisoUS', other='senisoCA,senisoAU,seniso'>
2302: # Red green color blindness is quite common affecting about 7.8% of
2303: # the male population, but onloy about .65% of the female population.
2304: # </lang>
2305: # Red green colour blindness is quite common affecting about 7.8% of
2306: # the male population, but onloy about .65% of the female population.
2307: # <lang which='seniso', other='senisoCA,senisoAU'>
2308: # </translated>
2309: #
2310: # renders the correct spelling of color (colour) for people who have specified
2311: # a preferred language that is one of the British Commonwealth languages
2312: # even though those are also listed as valid selections for the US english
2313: # <lang> block.
2314: #
1.397 albertel 2315: sub start_lang {
2316: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2317: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2318: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2319: &Apache::lonxml::startredirection();
2320: }
2321: return '';
2322: }
2323:
2324: sub end_lang {
2325: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2326: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2327: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
2328: my $result = &Apache::lonxml::endredirection();
2329: my $which = &Apache::lonxml::get_param('which',$parstack,
2330: $safeeval);
1.431 raeburn 2331: if ($which=~/\w/) {
2332: $available_texts{$which} = $result;
2333: }
2334: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
2335: $safeeval);
2336: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
2337: if ($language=~/\w/) {
2338: $available_texts{$language} = $result;
2339: }
1.427 bisitz 2340: }
2341:
1.397 albertel 2342: }
2343: return '';
2344: }
1.500 foxr 2345: } # end langauge block specific tags.
2346:
1.397 albertel 2347:
1.170 www 2348: sub start_instructorcomment {
1.201 albertel 2349: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 2350:
2351: my $result;
2352:
1.339 albertel 2353: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2354: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 2355: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 2356: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 2357: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
2358: $parser,$style);
1.170 www 2359: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
2360: }
2361: $result='';
2362: } elsif ($target eq 'edit') {
2363: $result .=&Apache::edit::tag_start($target,$token);
2364: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2365: }
2366: return $result;
2367: }
2368:
2369: sub end_instructorcomment {
1.159 albertel 2370: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2371: my $result;
2372: if ($target eq "edit") {
2373: $result.= &Apache::edit::tag_end($target,$token,'');
2374: }
2375: return $result;
1.4 tsai 2376: }
2377:
2378: sub start_while {
1.326 albertel 2379: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2380:
1.160 albertel 2381: my $result;
1.339 albertel 2382: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2383: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2384: my $code = $token->[2]->{'condition'};
1.4 tsai 2385:
1.160 albertel 2386: push( @Apache::structuretags::whileconds, $code);
2387: if (!$Apache::lonxml::default_homework_loaded) {
2388: &Apache::lonxml::default_homework_load($safeeval);
2389: }
2390: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 2391: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 2392: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 2393: push( @Apache::structuretags::whileline, $token->[5]);
2394: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 2395: if ( $result ) {
2396: &Apache::lonxml::newparser($parser,\$bodytext);
2397: }
2398: } elsif ($target eq 'edit') {
2399: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 2400: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 2401: $token,40);
2402: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2403: } elsif ($target eq 'modified') {
2404: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2405: $safeeval,'condition');
2406: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 2407: }
1.160 albertel 2408: return $result;
1.4 tsai 2409: }
2410:
2411: sub end_while {
1.159 albertel 2412: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 2413: my $result;
2414:
1.339 albertel 2415: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2416: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 2417: my $code = pop(@Apache::structuretags::whileconds);
2418: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 2419: my $line = pop(@Apache::structuretags::whileline);
2420: my $return = &Apache::run::run($code,$safeeval);
2421: my $starttime=time;
2422: my $error=0;
2423: while ($return) {
2424: if (time-$starttime >
2425: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 2426: $return = 0; $error=1; next;
1.161 albertel 2427: }
2428: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 2429: if ($target eq 'grade' || $target eq 'answer' ||
2430: $target eq 'analyze') {
2431: # grade/answer/analyze should produce no output but if we
2432: # are redirecting, the redirecter should know what to do
2433: # with the output
2434: if (!$Apache::lonxml::redirection) { undef($result); }
2435: }
1.161 albertel 2436: $return = &Apache::run::run($code,$safeeval);
2437: }
1.512.2.5 raeburn 2438: if ($error) {
2439: &Apache::lonxml::error(
2440: '<pre>'
2441: .&mt('Code ran too long. It ran for more than [_1] seconds.',
2442: $Apache::lonnet::perlvar{'lonScriptTimeout'})
2443: .&mt('This occurred while running <while> on line [_1].',
2444: $line)
2445: .'</pre>');
2446: }
1.160 albertel 2447: } elsif ($target eq "edit") {
2448: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 2449: }
1.160 albertel 2450: return $result;
1.1 albertel 2451: }
1.6 tsai 2452:
1.160 albertel 2453: # <randomlist show="1">
1.6 tsai 2454: # <tag1>..</tag1>
2455: # <tag2>..</tag2>
2456: # <tag3>..</tag3>
1.160 albertel 2457: # ...
1.6 tsai 2458: # </randomlist>
2459: sub start_randomlist {
1.326 albertel 2460: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2461: my $result;
1.339 albertel 2462: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
2463: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 2464: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 2465: my $b_parser= HTML::LCParser->new(\$body);
2466: $b_parser->xml_mode(1);
2467: $b_parser->marked_sections(1);
1.159 albertel 2468: my $b_tok;
2469: my @randomlist;
2470: my $list_item;
2471: while($b_tok = $b_parser->get_token() ) {
2472: if($b_tok->[0] eq 'S') { # start tag
2473: # get content of the tag until matching end tag
2474: # get all text upto the matching tag
2475: # and push the content into @randomlist
2476: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
2477: $b_parser);
2478: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
2479: push(@randomlist,$list_item);
2480: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
2481: # $list_item</b>";
2482: }
2483: if($b_tok->[0] eq 'T') { # text
2484: # what to do with text in between tags?
2485: # print "<b>TEXT $b_tok->[1]</b><br />";
2486: }
2487: # if($b_tok->[0] eq 'E') { # end tag, should not happen
2488: # print "<b>END-TAG $b_tok->[1]</b><br />";
2489: # }
2490: }
1.303 albertel 2491: if (@randomlist) {
2492: my @idx_arr = (0 .. $#randomlist);
2493: &Apache::structuretags::shuffle(\@idx_arr);
2494: my $bodytext = '';
2495: my $show=$#randomlist;
2496: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
2497: $showarg--;
2498: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 2499: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
2500: my @currlist;
2501: my $part = $Apache::inputtags::part;
2502: if ($part ne '') {
2503: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
2504: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
2505: if (!(grep(/^\Q$part\E$/,@currlist))) {
2506: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2507: }
2508: } else {
2509: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
2510: }
2511: }
2512: }
1.512.2.9 raeburn 2513: for my $i (0 .. $show) {
2514: $bodytext .= "$randomlist[ $idx_arr[$i] ]";
1.303 albertel 2515: }
2516: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 2517: }
2518: } elsif ($target eq 'edit' ) {
2519: $result .=&Apache::edit::tag_start($target,$token);
2520: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
2521: $token,5);
2522: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2523: } elsif ($target eq 'modified' ) {
2524: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2525: $safeeval,'show');
2526: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2527: }
2528: return $result;
1.7 tsai 2529: }
2530:
2531: sub shuffle {
2532: my $a=shift;
2533: my $i;
1.303 albertel 2534: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 2535: &Apache::response::pushrandomnumber();
1.159 albertel 2536: for($i=@$a;--$i;) {
2537: my $j=int(&Math::Random::random_uniform() * ($i+1));
2538: next if $i == $j;
2539: @$a[$i,$j] = @$a[$j,$i];
2540: }
1.251 albertel 2541: &Apache::response::poprandomnumber();
1.7 tsai 2542: }
1.6 tsai 2543: }
2544:
2545: sub end_randomlist {
1.159 albertel 2546: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2547: my $result;
2548: if ($target eq 'edit' ) {
2549: $result=&Apache::edit::tag_end($target,$token,
2550: 'End Randomly Parsed Block');
2551: }
2552: return $result;
1.6 tsai 2553: }
2554:
1.283 albertel 2555: sub ordered_show_check {
2556: my $last_part=$Apache::inputtags::partlist[-2];
2557: my $in_order=
2558: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
2559: my $in_order_show=1;
2560: if ($last_part ne '0' && lc($in_order) eq 'yes') {
2561: $in_order_show=&Apache::response::check_status($last_part);
2562: }
2563: return $in_order_show;
2564: }
2565:
1.469 www 2566:
2567: sub start_startpartmarker {
2568: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2569: my $result='';
2570: if ($target eq 'edit') {
2571: $result=&Apache::edit::tag_start($target,$token);
2572: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
2573: $result.=&Apache::edit::end_table();
2574:
2575: }
2576: return $result;
2577: }
2578:
2579: sub end_startpartmarker {
2580: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2581: my @result;
2582: if ($target eq 'edit') { $result[1]='no'; }
2583: return @result;
2584: }
2585:
2586: sub start_endpartmarker {
2587: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2588: my $result='';
2589: if ($target eq 'edit') {
2590: $result=&Apache::edit::tag_start($target,$token);
2591: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
2592: $result.=&Apache::edit::end_table();
2593:
2594: }
2595: return $result;
2596: }
2597:
2598: sub end_endpartmarker {
2599: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2600: my @result;
2601: if ($target eq 'edit') { $result[1]='no'; }
2602: return @result;
2603: }
2604:
2605:
2606:
2607:
2608:
1.11 albertel 2609: sub start_part {
1.326 albertel 2610: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 2611: if (!$Apache::lonxml::metamode) {
2612: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
2613: # duedates.
2614: }
1.159 albertel 2615: my $result='';
1.386 albertel 2616: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 2617: $Apache::inputtags::part=$id;
1.177 albertel 2618: push(@Apache::inputtags::partlist,$id);
1.512.2.10 raeburn 2619: $Apache::inputtags::leniency='';
1.177 albertel 2620: @Apache::inputtags::response=();
1.159 albertel 2621: @Apache::inputtags::previous=();
2622: @Apache::inputtags::previous_version=();
1.405 albertel 2623: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 2624: &Apache::response::reset_params();
2625:
1.159 albertel 2626: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 2627: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
2628: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.512.2.9 raeburn 2629: if ($Apache::lonhomework::type eq 'randomizetry') {
2630: my $rndseed=&setup_rndseed($safeeval,$target);
2631: if (($target eq 'grade') && &Apache::response::submitted()) {
2632: $Apache::lonhomework::results{"resource.$id.rndseed"}=$rndseed;
2633: }
2634: } elsif (($target eq 'grade') && &Apache::response::submitted()) {
2635: $Apache::lonhomework::results{"resource.$id.rndseed"}=$Apache::lonhomework::rawrndseed;
2636: }
1.283 albertel 2637: my $in_order_show=&ordered_show_check();
1.214 albertel 2638: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 2639: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 2640: &Apache::run::run($expression,$safeeval);
1.159 albertel 2641:
2642: if ($target eq 'meta') {
1.224 www 2643: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
2644: return &Apache::response::mandatory_part_meta.
2645: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 2646: } elsif ($target eq 'web' || $target eq 'grade' ||
2647: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 2648: if ($hidden || !$in_order_show) {
1.326 albertel 2649: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 2650: } else {
2651: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
2652: push (@Apache::inputtags::status,$status);
2653: my $expression='$external::datestatus="'.$status.'";';
2654: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
2655: &Apache::run::run($expression,$safeeval);
1.284 albertel 2656: if ($env{'request.state'} eq 'construct') {
1.241 albertel 2657: &set_problem_state($Apache::inputtags::part);
1.240 albertel 2658: }
1.216 albertel 2659: if (( $status eq 'CLOSED' ) ||
2660: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 2661: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 2662: ( $status eq 'BANNED') ||
2663: ( $status eq 'UNAVAILABLE') ||
2664: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 2665: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
2666: $style);
1.159 albertel 2667: if ( $target eq "web" ) {
1.211 albertel 2668: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2669: } elsif ( $target eq 'tex' ) {
1.284 albertel 2670: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2671: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2672: } else {
1.211 albertel 2673: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2674: }
1.159 albertel 2675: }
2676: } else {
2677: if ($target eq 'tex') {
1.284 albertel 2678: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2679: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2680: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2681: } else {
2682: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2683: }
1.195 sakharuk 2684: }
1.159 albertel 2685: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2686: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.512.2.9 raeburn 2687: my @allkeys = split(/,/,$allkeys);
1.222 sakharuk 2688: my $allow_print_points = 0;
2689: foreach my $partial_key (@allkeys) {
1.230 albertel 2690: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2691: if ($1 ne '0') {$allow_print_points=1;}
2692: }
2693: }
1.275 albertel 2694: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2695: if (defined($maxtries) && $maxtries < 0) {
2696: $allow_print_points=0;
2697: }
1.302 albertel 2698: if (lc($env{'course.'.$env{'request.course.id'}.
2699: '.disableexampointprint'}) eq 'yes') {
2700: $allow_print_points=0;
2701: }
1.463 foxr 2702: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2703: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2704:
2705: }
1.233 www 2706: } elsif ($target eq 'web') {
1.479 raeburn 2707: if ($status eq 'CAN_ANSWER') {
2708: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2709: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
2710: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
2711: my $num = scalar(@Apache::inputtags::partlist)-1;
2712: if ($probrandomize eq 'randomizetry') {
2713: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
2714: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2715: } else {
2716: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2717: if ($probrandtries ne $reqtries) {
2718: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2719: }
2720: }
2721: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
2722: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2723: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2724: }
2725: }
1.475 raeburn 2726: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2727: }
2728: }
2729: }
2730: } elsif ($target eq 'edit') {
2731: $result.=&Apache::edit::tag_start($target,$token);
2732: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2733: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2734: ' '.
2735: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2736: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2737: } elsif ($target eq 'modified') {
2738: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2739: $safeeval,'id','display');
1.159 albertel 2740: if ($constructtag) {
1.225 albertel 2741: #limiting ids to only letters numbers, and space
1.224 www 2742: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2743: $result = &Apache::edit::rebuild_tag($token);
2744: }
2745: }
2746: return $result;
1.11 albertel 2747: }
2748:
2749: sub end_part {
1.159 albertel 2750: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2751: &Apache::lonxml::debug("in end_part $target ");
2752: my $status=$Apache::inputtags::status['-1'];
2753: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2754: my $in_order_show=&ordered_show_check();
1.321 albertel 2755: my $result;
2756: if (!$Apache::lonxml::metamode) {
2757: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2758: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2759: }
1.312 albertel 2760: if ($target eq 'grade') {
1.249 albertel 2761: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2762: !$hidden && $in_order_show) {
1.311 foxr 2763: $result.=&Apache::inputtags::grade;
1.249 albertel 2764: } else {
2765: # move any submission data to .hidden
2766: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2767: }
1.283 albertel 2768: } elsif (($target eq 'web' || $target eq 'tex') &&
2769: !$hidden && $in_order_show) {
1.159 albertel 2770: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2771: $target);
1.490 raeburn 2772: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2773: ($env{'form.grade_imsexport'})) {
1.212 albertel 2774: $gradestatus='';
2775: }
1.311 foxr 2776: $result.=$gradestatus;
1.265 sakharuk 2777: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2778: } elsif ($target eq 'edit') {
1.311 foxr 2779: $result.=&Apache::edit::end_table();
1.322 albertel 2780: } elsif ($target eq 'modified') {
2781: $result .= $token->[2];
1.159 albertel 2782: }
2783: pop @Apache::inputtags::status;
2784: $Apache::inputtags::part='';
1.512.2.10 raeburn 2785: $Apache::inputtags::leniency='';
1.295 albertel 2786: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2787: return $result;
1.11 albertel 2788: }
1.1 albertel 2789:
1.25 albertel 2790: sub start_preduedate {
1.326 albertel 2791: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2792: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2793: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2794: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2795: if (!$Apache::lonhomework::scantronmode &&
2796: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2797: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2798: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2799: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2800: }
1.24 albertel 2801: }
1.159 albertel 2802: return '';
1.24 albertel 2803: }
2804:
1.25 albertel 2805: sub end_preduedate {
1.159 albertel 2806: return '';
1.24 albertel 2807: }
2808:
1.369 foxr 2809: # In all the modes where <postanswerdate> text is
2810: # displayable, all we do is eat up the text between the start/stop
2811: # tags if the conditions are not right to display it.
1.25 albertel 2812: sub start_postanswerdate {
1.326 albertel 2813: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2814: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2815: &Apache::lonnet::allowed('pav',
2816: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2817: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2818: $target eq 'tex' ) {
1.300 albertel 2819: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2820: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2821: (($target eq 'tex') && !$pav)) {
1.326 albertel 2822: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2823: }
2824: }
2825: return '';
1.24 albertel 2826: }
2827:
1.25 albertel 2828: sub end_postanswerdate {
1.159 albertel 2829: return '';
1.24 albertel 2830: }
2831:
1.25 albertel 2832: sub start_notsolved {
1.326 albertel 2833: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2834: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2835: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2836: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2837: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2838: if ($gradestatus =~ /^correct/ &&
2839: &Apache::response::show_answer()) {
1.159 albertel 2840: &Apache::lonxml::debug("skipping");
1.326 albertel 2841: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2842: }
1.24 albertel 2843: }
1.159 albertel 2844: return '';
1.24 albertel 2845: }
2846:
1.25 albertel 2847: sub end_notsolved {
1.159 albertel 2848: return '';
1.24 albertel 2849: }
2850:
2851: sub start_solved {
1.326 albertel 2852: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2853: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2854: $target eq 'tex') {
2855: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2856: if ($gradestatus !~ /^correct/ ||
2857: !&Apache::response::show_answer()) {
1.326 albertel 2858: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2859: }
1.24 albertel 2860: }
1.159 albertel 2861: return '';
1.24 albertel 2862: }
2863:
2864: sub end_solved {
1.248 albertel 2865: return '';
2866: }
2867:
2868: sub start_problemtype {
1.326 albertel 2869: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2870: my $result;
1.339 albertel 2871: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2872: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2873: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2874: if (!defined($mode)) { $mode='show'; }
2875: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2876: my $found=0;
2877: foreach my $type (split(',',$for)) {
2878: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2879: }
2880: if ($mode eq 'show' && !$found) {
1.326 albertel 2881: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2882: }
2883: if ($mode eq 'hide' && $found) {
1.326 albertel 2884: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2885: }
2886: } elsif ($target eq 'edit') {
2887: $result .=&Apache::edit::tag_start($target,$token);
2888: $result.=&Apache::edit::select_arg('Mode:','mode',
2889: [['show','Show'],
2890: ['hide','Hide']]
2891: ,$token);
2892: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1.512.2.2 raeburn 2893: [ ['exam','Exam/Quiz Problem'],
1.248 albertel 2894: ['survey','Survey'],
1.465 raeburn 2895: ['surveycred','Survey (with credit)'],
2896: ['anonsurvey','Anonymous Survey'],
2897: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2898: ['problem','Homework Problem'],
1.479 raeburn 2899: ['practice','Practice Problem'],
2900: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2901: ,$token);
2902: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2903: } elsif ($target eq 'modified') {
2904: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2905: $safeeval,'mode','for');
2906: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2907: }
2908: return $result;
2909: }
2910:
2911: sub end_problemtype {
1.159 albertel 2912: return '';
1.24 albertel 2913: }
1.34 albertel 2914:
2915: sub start_startouttext {
1.159 albertel 2916: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2917: my @result=(''.'');
2918: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2919:
2920: my $nesting =
2921: &Apache::lonxml::set_state('outtext',
2922: &Apache::lonxml::get_state('outtext')+1);
2923: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2924: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2925: }
1.159 albertel 2926: return (@result);
1.34 albertel 2927: }
1.159 albertel 2928:
1.34 albertel 2929: sub end_startouttext {
1.326 albertel 2930: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2931: my $result='';
2932: my $text='';
2933: if ($target eq 'edit') {
1.424 foxr 2934: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2935: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.512.2.11 raeburn 2936: $result.=&Apache::edit::start_table($token)."<tr><td>".&Apache::loncommon::insert_folding_button()
2937: ." ".&mt('Text Block')."</td>"
1.438 bisitz 2938: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2939: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 2940: .'</span></td>'
1.512.2.12 raeburn 2941: .'<td><span id="math_'.$areaid.'">';
2942: if ($env{'environment.nocodemirror'}) {
2943: $result.=&Apache::lonhtmlcommon::dragmath_button($areaid,1);
2944: } else {
2945: $result.=' ';
2946: }
2947: $result.='</span></td>'
1.474 raeburn 2948: .'<td>'
2949: .&Apache::edit::insertlist($target,$token)
2950: .'</td>'
1.512.2.5 raeburn 2951: .'<td class="LC_edit_problem_latexhelper">' .
1.474 raeburn 2952: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2953: &Apache::edit::end_row().
1.362 albertel 2954: &Apache::edit::start_spanning_row()."\n".
1.255 www 2955: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2956: }
2957: if ($target eq 'modified') {
1.219 albertel 2958: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2959: }
2960: if ($target eq 'tex') {
2961: $result .= '\noindent ';
2962: }
2963: return $result;
1.34 albertel 2964: }
1.159 albertel 2965:
1.34 albertel 2966: sub start_endouttext {
1.159 albertel 2967: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2968: my $result='';
2969: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2970: if ($target eq "modified") {
2971: $result='<endouttext />'.
1.377 albertel 2972: &Apache::edit::handle_insertafter('startouttext');
2973: }
1.404 albertel 2974:
2975: my $nesting =
2976: &Apache::lonxml::set_state('outtext',
2977: &Apache::lonxml::get_state('outtext')-1);
2978: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2979: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2980: &Apache::lonxml::set_state('outtext', 0);
2981: }
1.159 albertel 2982: return $result;
1.34 albertel 2983: }
1.159 albertel 2984:
1.34 albertel 2985: sub end_endouttext {
1.159 albertel 2986: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2987: my @result=('','');
2988: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2989: return (@result);
1.34 albertel 2990: }
1.159 albertel 2991:
1.45 albertel 2992: sub delete_startouttext {
1.326 albertel 2993: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2994: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2995: my $text=$$parser['-1']->get_text("/endouttext");
2996: my $ntoken=$$parser['-1']->get_token();
2997: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2998: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2999: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
3000: # they did the last time round
3001: &Apache::lonxml::increasedepth($ntoken);
3002: &Apache::lonxml::decreasedepth($ntoken);
3003: return 1;
1.193 www 3004: }
3005:
3006: sub start_simpleeditbutton {
3007: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
3008: my $result='';
1.284 albertel 3009: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 3010: ($target eq 'web') &&
1.330 albertel 3011: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 3012: my $url=$env{'request.noversionuri'};
1.193 www 3013: $url=~s/\?.*$//;
1.367 albertel 3014: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 3015: # Warning makes more sense and is more important on edit screen
1.442 bisitz 3016: # $result='<p class="LC_warning">'
3017: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
3018: # .&Apache::loncommon::help_open_topic('Caching')
3019: # .'</p>';
1.486 www 3020: $result.=&Apache::loncommon::head_subbox(
3021: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 3022: .&Apache::lonhtmlcommon::add_item_funclist(
3023: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
3024: .&mt('Edit').'</a>')
1.486 www 3025: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 3026:
1.193 www 3027: }
3028: return $result;
3029: }
3030:
3031: sub end_simpleeditbutton {
3032: return '';
1.45 albertel 3033: }
1.34 albertel 3034:
1.428 raeburn 3035: sub practice_problem_header {
3036: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
3037: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
3038: '</span>';
3039: }
3040:
1.479 raeburn 3041: sub randomizetry_problem_header {
3042: my ($problemstatus,$reqtries) = @_;
3043: my ($header,$text);
3044: if ($reqtries > 1) {
3045: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
3046: if (($problemstatus eq 'no') ||
3047: ($problemstatus eq 'no_feedback_ever')) {
3048: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3049: } else {
3050: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3051: }
3052: } else {
3053: $header = &mt('New Problem Variation Each Try');
3054: if (($problemstatus eq 'no') ||
3055: ($problemstatus eq 'no_feedback_ever')) {
3056: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
3057:
3058: } else {
3059: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
3060: }
3061: }
3062: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
3063: '<span class="LC_info">'.$text.'</span><hr />';
3064: }
3065:
3066: sub randomizetry_part_header {
3067: my ($problemstatus,$reqtries,$num) = @_;
3068: my ($header,$text);
3069: if ($reqtries eq 'none') {
3070: $header = &mt('No Question Variation');
3071: $text = &mt('For this question there will no new variation after a try.');
3072: } elsif ($reqtries > 1) {
3073: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
3074: if (($problemstatus eq 'no') ||
3075: ($problemstatus eq 'no_feedback_ever')) {
3076: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
3077: } else {
3078: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
3079: }
3080: } else {
3081: $header = &mt('New Question Variation For Each Try');
3082: if (($problemstatus eq 'no') ||
3083: ($problemstatus eq 'no_feedback_ever')) {
3084: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
3085: } else {
3086: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
3087: }
3088: }
3089: my $output;
3090: if ($num > 1) {
3091: $output .= '<hr />';
3092: }
3093: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
3094: '<span class="LC_info">'.$text.'</span><br /><br />';
3095: return $output;
3096: }
3097:
1.1 albertel 3098: 1;
3099: __END__
1.435 jms 3100:
3101: =pod
3102:
3103: =back
3104:
3105: =cut
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