Annotation of loncom/homework/structuretags.pm, revision 1.498
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.498 ! raeburn 4: # $Id: structuretags.pm,v 1.497 2011/11/14 00:20:39 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();
1.267 albertel 64: use Time::HiRes qw( gettimeofday tv_interval );
1.356 www 65: use lib '/home/httpd/lib/perl/';
66: use LONCAPA;
67:
1.78 harris41 68: BEGIN {
1.469 www 69: &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 70: }
71:
72: sub start_web {
1.326 albertel 73: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 74: if ($target ne 'edit' && $target ne 'modified') {
75: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
76: if ($target eq 'web' || $target eq 'webgrade') {
77: return $bodytext;
78: }
79: } elsif ($target eq "edit" ) {
80: my $bodytext =
81: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
82: my $result = &Apache::edit::tag_start($target,$token);
83: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
84: return $result;
85: } elsif ( $target eq "modified" ) {
86: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 87: }
88: return '';
1.10 albertel 89: }
90:
91: sub end_web {
1.44 ng 92: return '';
1.10 albertel 93: }
94:
95: sub start_tex {
1.326 albertel 96: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 97: my $result='';
1.383 albertel 98: if ($target ne 'edit' && $target ne 'modified') {
99: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
100: if ($target eq 'tex') {
1.434 foxr 101:
102: # If inside a table, occurrences of \\ must be removed;
103: # else the table blows up.
104:
105: if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
106: $bodytext =~ s/\\\\//g;
107: }
1.432 foxr 108: return $bodytext.'{}';
1.383 albertel 109: }
110: } elsif ($target eq "edit" ) {
111: my $bodytext =
112: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
113: my $result = &Apache::edit::tag_start($target,$token);
114: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
115: return $result;
116: } elsif ( $target eq "modified" ) {
117: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 118: }
1.198 sakharuk 119: return $result;;
1.10 albertel 120: }
121:
122: sub end_tex {
1.44 ng 123: return '';
1.9 albertel 124: }
125:
1.400 albertel 126: sub homework_js {
127: return &Apache::loncommon::resize_textarea_js().
1.416 raeburn 128: &setmode_javascript().
1.400 albertel 129: <<'JS';
130: <script type="text/javascript">
1.483 raeburn 131: // <![CDATA[
1.494 raeburn 132: function setSubmittedPart (part,prefix) {
133: if (typeof(prefix) == 'undefined') {
134: this.document.lonhomework.submitted.value="part_"+part;
135: } else {
136: for (var i=0;i<this.document.lonhomework.elements.length;i++) {
137: if (this.document.lonhomework.elements[i].name == prefix+'submitted') {
138: this.document.lonhomework.elements[i].value="part_"+part;
139: }
140: }
141: }
1.400 albertel 142: }
143:
144: function image_response_click (which, e) {
145: init_geometry();
146: if (!e) { e = window.event; } //IE
147: var input_element = document.lonhomework.elements[which];
1.401 albertel 148: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 149: var token = token_element.value;
1.401 albertel 150: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 151: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
152: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
153: var click = x+':'+y;
154: input_element.value = click;
1.485 raeburn 155: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
1.400 albertel 156: }
1.483 raeburn 157: // ]]>
1.400 albertel 158: </script>
159: JS
160: }
161:
1.416 raeburn 162: sub setmode_javascript {
163: return <<"ENDSCRIPT";
164: <script type="text/javascript">
1.485 raeburn 165: // <![CDATA[
1.416 raeburn 166: function setmode(form,probmode) {
167: form.problemmode.value = probmode;
168: form.submit();
169: }
1.485 raeburn 170: // ]]>
1.416 raeburn 171: </script>
172: ENDSCRIPT
173: }
174:
1.48 albertel 175: sub page_start {
1.345 albertel 176: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
177: $extra_head)=@_;
1.159 albertel 178: my %found;
1.207 albertel 179: foreach my $taginside (@$tagstack) {
1.159 albertel 180: foreach my $taglookedfor ('html','body','form') {
181: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
182: }
183: }
184:
1.343 albertel 185: if ($target eq 'tex') {
186: return
187: &Apache::londefdef::start_html($target,$token,$tagstack,
188: $parstack,$parser,$safeeval);
189: }
190:
1.474 raeburn 191: $extra_head .= &homework_js().
192: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
193: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
194: my %textarea_args = (
195: dragmath => 'math',
196: );
197: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 198: }
1.478 raeburn 199: my $is_task = ($env{'request.uri'} =~ /\.task$/);
1.493 raeburn 200: my $needs_upload;
1.495 raeburn 201: my ($symb)= &Apache::lonnet::whichuser();
202: my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
1.478 raeburn 203: if ($is_task) {
1.495 raeburn 204: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
1.493 raeburn 205: } else {
206: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.uploadedfiletypes") ne '') {
1.495 raeburn 207: unless ($env{'request.state'} eq 'construct') {
208: my $navmap = Apache::lonnavmaps::navmap->new();
209: if (ref($navmap)) {
210: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 211: my $is_page;
212: if (ref($mapres)) {
213: $is_page = $mapres->is_page();
214: }
215: unless ($is_page) {
1.495 raeburn 216: $needs_upload = 1;
217: }
218: }
219: }
1.493 raeburn 220: } else {
221: unless ($env{'request.state'} eq 'construct') {
222: my $navmap = Apache::lonnavmaps::navmap->new();
223: if (ref($navmap)) {
1.495 raeburn 224: my $mapres = $navmap->getResourceByUrl($map);
1.496 raeburn 225: my $is_page;
226: if (ref($mapres)) {
227: $is_page = $mapres->is_page();
228: }
229: unless ($is_page) {
1.495 raeburn 230: my $res = $navmap->getBySymb($symb);
231: if (ref($res)) {
232: my $partlist = $res->parts();
233: if (ref($partlist) eq 'ARRAY') {
234: foreach my $part (@{$partlist}) {
235: my @types = $res->responseType($part);
236: my @ids = $res->responseIds($part);
237: for (my $i=0; $i < scalar(@ids); $i++) {
238: if ($types[$i] eq 'essay') {
239: my $partid = $part.'_'.$ids[$i];
240: if (&Apache::lonnet::EXT("resource.$partid.uploadedfiletypes") ne '') {
241: $needs_upload = 1;
242: last;
243: }
1.493 raeburn 244: }
245: }
246: }
1.495 raeburn 247: }
248: }
1.493 raeburn 249: }
250: }
251: }
252: }
1.495 raeburn 253: if ($needs_upload) {
254: $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
255: }
1.478 raeburn 256: }
1.425 raeburn 257:
1.344 albertel 258: my %body_args;
259: if (defined($found{'html'})) {
260: $body_args{'skip_phases'}{'head'}=1;
261: } else {
1.343 albertel 262:
1.345 albertel 263: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 264:
1.379 albertel 265: $extra_head .= &Apache::londefdef::generate_css_links();
266:
1.384 albertel 267: if ($env{'request.state'} eq 'construct') {
1.343 albertel 268: $extra_head.=&Apache::edit::js_change_detection().
269: "<script type=\"text/javascript\">\n".
270: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
271: &Apache::loncommon::browser_and_searcher_javascript().
272: "\n</script>\n";
273: }
1.159 albertel 274: }
1.343 albertel 275:
1.446 bisitz 276: my $pageheader = '';
1.344 albertel 277: if (defined($found{'body'})) {
278: $body_args{'skip_phases'}{'body'}=1;
279: } elsif (!defined($found{'body'})
280: && $env{'request.state'} eq 'construct') {
1.343 albertel 281: if ($target eq 'web' || $target eq 'edit') {
1.450 bisitz 282: # Breadcrumbs for Construction Space
283: &Apache::lonhtmlcommon::clear_breadcrumbs();
284: &Apache::lonhtmlcommon::add_breadcrumb({
285: 'text' => 'Construction Space',
1.497 raeburn 286: 'href' => &Apache::loncommon::authorspace($env{'request.uri'}),
1.450 bisitz 287: });
1.460 droeschl 288: # breadcrumbs (and tools) will be created
289: # in start_page->bodytag->innerregister
290:
1.450 bisitz 291: # FIXME Where are we?
292: # &Apache::lonhtmlcommon::add_breadcrumb({
293: # 'text' => 'Problem Editing', # 'Problem Testing'
294: # 'href' => '',
295: # });
1.460 droeschl 296: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 297: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 298: }
1.272 albertel 299: } elsif (!defined($found{'body'})) {
1.343 albertel 300: my %add_entries;
1.159 albertel 301: my $background=&Apache::lonxml::get_param('background',$parstack,
302: $safeeval);
1.343 albertel 303: if ($background ne '' ) {
304: $add_entries{'background'} = $background;
305: }
1.344 albertel 306:
1.290 albertel 307: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
308: $safeeval);
1.446 bisitz 309: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 310:
1.446 bisitz 311: $body_args{'bgcolor'} = $bgcolor;
312: # $body_args{'no_title'} = 1;
313: $body_args{'force_register'} = 1;
314: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 315: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 316: $body_args{'only_body'} = 1;
317: }
1.344 albertel 318: }
1.365 albertel 319: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 320: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
321: \%body_args);
1.446 bisitz 322: $page_start .= $pageheader;
1.462 raeburn 323: if (!defined($found{'body'})
324: && $env{'request.state'} ne 'construct'
325: && ($target eq 'web' || $target eq 'webgrade')) {
326:
327: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
328: if ($symb eq '' && !$publicuser) {
329: $page_start .= '<p class="LC_info">'
330: .&mt('Browsing resource, all submissions are temporary.')
331: .'</p>';
1.457 bisitz 332: }
1.344 albertel 333: }
334:
1.409 albertel 335: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 336: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 337: }
338: my $form_tag_start;
339: if (!defined($found{'form'})) {
1.337 albertel 340: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 341: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 342: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 343: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 344: $form_tag_start.=$uri.'" ';
345: if ($target eq 'edit') {
346: $form_tag_start.=&Apache::edit::form_change_detection();
347: }
1.493 raeburn 348: my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
349: my ($path,$multiresp) =
350: &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
1.495 raeburn 351: if (($is_task) || ($needs_upload)) {
352: $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
1.478 raeburn 353: }
1.368 albertel 354: $form_tag_start.='>'."\n";
1.355 albertel 355:
356: my $symb=&Apache::lonnet::symbread();
357: if ($symb =~ /\S/) {
358: $symb=
359: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
360: $form_tag_start.=
1.368 albertel 361: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 362: }
1.159 albertel 363: }
1.343 albertel 364: return ($page_start,$form_tag_start);
1.105 albertel 365: }
366:
1.141 matthew 367: #use Time::HiRes();
1.105 albertel 368: sub get_resource_name {
1.159 albertel 369: my ($parstack,$safeeval)=@_;
1.388 foxr 370: my $name;
1.204 albertel 371: if (defined($Apache::lonhomework::name)) {
1.388 foxr 372: $name = $Apache::lonhomework::name;
373: } else {
374: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 375: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 376: if ($name eq '') {
377: $name=&Apache::lonnet::EXT('resource.title');
378: if ($name eq 'con_lost') { $name = ''; }
379: }
380: if ($name!~/\S+/) {
381: $name=$env{'request.uri'};
382: $name=~s-.*/([^/]+)$-$1-;
383: }
384: # The name has had html tags escaped:
385:
386: $name=~s/</</gs;
387: $name=~s/>/>/gs;
388:
389: $Apache::lonhomework::name=$name;
1.204 albertel 390: }
1.159 albertel 391: return $name;
1.105 albertel 392: }
393:
394: sub setup_rndseed {
1.479 raeburn 395: my ($safeeval,$target)=@_;
1.367 albertel 396: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 397: my ($questiontype,$set_safespace,$rndseed);
398: if ($target eq 'analyze') {
399: $questiontype = $env{'form.grade_questiontype'};
400: }
401: unless (defined($questiontype)) {
402: $questiontype = $Apache::lonhomework::type;
403: }
1.333 albertel 404: if ($env{'request.state'} eq "construct"
405: || $symb eq ''
406: || $Apache::lonhomework::type eq 'practice'
407: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 408: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 409: ['rndseed']);
1.284 albertel 410: $rndseed=$env{'form.rndseed'};
1.159 albertel 411: if (!$rndseed) {
1.162 albertel 412: $rndseed=$Apache::lonhomework::history{'rndseed'};
413: if (!$rndseed) {
414: $rndseed=time;
415: }
1.284 albertel 416: $env{'form.rndseed'}=$rndseed;
1.162 albertel 417: }
1.479 raeburn 418: if (($env{'request.state'} eq "construct") &&
419: ($Apache::lonhomework::type eq 'randomizetry')) {
420: my $tries = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
421: if ($tries) {
422: $rndseed += $tries;
423: }
1.480 raeburn 424: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 425: }
1.374 albertel 426: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
427: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 428: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 429: srand(time);
430: $rndseed=int(rand(2100000000));
1.284 albertel 431: $env{'form.rndseed'}=$rndseed;
432: delete($env{'form.resetdata'});
433: delete($env{'form.newrandomization'});
1.159 albertel 434: }
1.488 www 435: $rndseed=~s/\,/\:/g;
436: $rndseed=~s/[^\w\d\:\-]//g;
1.489 www 437: if (defined($rndseed)) {
438: my ($c1,$c2)=split(/\:/,$rndseed);
439: unless ($c2) { $c2=0; }
440: unless (($c1==int($c1)) && ($c2==int($c2))) {
441: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
442: }
1.187 albertel 443: }
1.247 albertel 444: if ($Apache::lonhomework::history{'resource.CODE'}) {
445: $rndseed=&Apache::lonnet::rndseed();
446: }
1.479 raeburn 447: $set_safespace = 1;
448: } elsif ($questiontype eq 'randomizetry') {
449: if ($target eq 'analyze') {
450: if (defined($env{'form.grade_rndseed'})) {
451: $rndseed = $env{'form.grade_rndseed'};
452: }
453: }
454: unless (($target eq 'analyze') && (defined($rndseed))) {
455: $rndseed=&Apache::lonnet::rndseed();
456: my $curr_try = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
457: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
458: $curr_try ++;
459: }
460: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
461: $rndseed = $1;
462: }
463: if ($curr_try) {
464: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
465: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
466: my $inc = int(($curr_try-1)/$reqtries);
467: $rndseed += $inc;
468: } else {
469: $rndseed += $curr_try;
470: }
471: }
472: }
473: $set_safespace = 1;
474: }
475: if ($set_safespace) {
476: if ($safeeval) {
477: &Apache::lonxml::debug("Setting rndseed to $rndseed");
478: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
479: }
480: }
481: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
482: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 483: }
484: return $rndseed;
1.105 albertel 485: }
486:
1.268 albertel 487: sub remember_problem_state {
488: return '
1.284 albertel 489: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
490: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
491: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 492: }
493:
1.487 www 494: sub problem_edit_action_button {
495: my ($name,$action,$accesskey,$text,$flag)=@_;
496: my $actionscript="setmode(this.form,'$action')";
497: return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
498: ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
499: }
500:
1.423 www 501: sub problem_edit_buttons {
1.487 www 502: my ($mode)=@_;
503: # Buttons that do not save
504: my $result='<div class="LC_edit_problem_discards">'.
505: &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
506: if ($mode eq 'editxml') {
507: $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
508: $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
509: $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
510: } else {
511: $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
512: $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
513: }
514: $result.="\n</div>";
515: # Buttons that save
516: $result.='<div class="LC_edit_problem_saves">';
517: if ($mode eq 'editxml') {
518: $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
519: $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
520: } else {
521: $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
522: $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
523: }
524: $result.="\n</div>\n";
525: return $result;
1.423 www 526: }
527:
528: sub problem_edit_header {
1.487 www 529: return '<input type="hidden" name="submitted" value="edit" />'.
530: &remember_problem_state('edit').'
1.423 www 531: <div class="LC_edit_problem_header">
532: <div class="LC_edit_problem_header_title">
533: '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
534: </div>'.
1.487 www 535: '<input type="hidden" name="problemmode" value="saveedit" />'.
1.423 www 536: &problem_edit_buttons().'
1.459 bisitz 537: <hr style="clear:both;" />
1.409 albertel 538: '.&Apache::lonxml::message_location().'
1.408 albertel 539: </div>
540: '.
1.458 bisitz 541: '<table border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
1.105 albertel 542: }
543:
544: sub problem_edit_footer {
1.412 albertel 545: return '</td></tr></table><br />
546: <div class="LC_edit_problem_footer">
1.453 bisitz 547: <hr />'.
1.423 www 548: &problem_edit_buttons().'
1.459 bisitz 549: <hr style="clear:both;" />
1.412 albertel 550: </div>
551: '.
1.342 albertel 552: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 553: }
554:
1.235 albertel 555: sub option {
556: my ($value,$name) = @_;
557: my $result ="<option value='".$value."' ";
1.284 albertel 558: if ($env{'form.'.$name} eq $value) {
1.235 albertel 559: $result.=" selected='on' ";
560: }
561: $result.='>';
562: return $result;
563: }
564:
1.105 albertel 565: sub problem_web_to_edit_header {
1.159 albertel 566: my ($rndseed)=@_;
1.406 albertel 567: my $result .= '<div class="LC_edit_problem_header">';
568:
569: if (!$Apache::lonhomework::parsing_a_task) {
570: $result .=
571: '<div class="LC_edit_problem_header_title">'.
572: &mt('Problem Testing').
573: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
574: '</div>';
575: } else {
576: $result .=
577: '<div class="LC_edit_problem_header_title">'.
578: &mt('Task Testing').
579: '</div>';
580: }
581:
1.315 albertel 582: my $show_all_foils_text =
583: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 584: &mt('Show All Instances')
585: : &mt('Show All Foils');
1.315 albertel 586:
1.452 bisitz 587: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
588: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 589: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 590: $show_all.= ' /> '.$show_all_foils_text
591: .'</label></span>';
1.406 albertel 592:
593:
1.384 albertel 594:
1.406 albertel 595: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 596: if (!$Apache::lonhomework::parsing_a_task) {
597: $result.="
1.406 albertel 598: <div class='LC_edit_problem_header_row1'>
599: <span class=\"LC_nobreak\">
1.405 albertel 600: ".&mt("Problem Status:")."
1.235 albertel 601: <select name='problemstate'>
1.270 albertel 602: <option value=''></option>
1.235 albertel 603: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
604: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
605: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
606: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
607: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
608: </select>
1.406 albertel 609: </span>
610: <span class=\"LC_nobreak\">
1.405 albertel 611: ".&mt("Problem Type:")."
1.235 albertel 612: <select name='problemtype'>
1.270 albertel 613: <option value=''></option>
1.242 albertel 614: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 615: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 616: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 617: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
618: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
619: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 620: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 621: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 622: </select>
1.406 albertel 623: </span>
624: $show_all
625: </div>
626: <div class='LC_edit_problem_header_row2'>
627: <span class=\"LC_nobreak\">
1.405 albertel 628: ".&mt("Feedback Mode:")."
1.235 albertel 629: <select name='problemstatus'>
630: <option value=''></option>
1.242 albertel 631: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.405 albertel 632: ".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
633: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 634: </select>
1.406 albertel 635: </span>
636: ";
637:
1.376 albertel 638: } elsif ($Apache::lonhomework::parsing_a_task) {
639: $result.="
1.406 albertel 640: <div class='LC_edit_problem_header_row1'>
641: <span class=\"LC_nobreak\">
1.405 albertel 642: ".&mt("Problem Status:")."
1.376 albertel 643: <select name='problemstate'>
644: <option value=''></option>
645: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
646: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
647: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
648: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
649: </select>
1.406 albertel 650: </span>
651: $show_all
652: ";
653: }
654: $result.='
655: <span class="LC_nobreak">
656: '.&mt('Apply style file: ').'
657: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
658: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
659: </span>
1.422 www 660: </div>
661: <div class="LC_edit_problem_header_row1">'.
662: &Apache::lonxml::renderingoptions().'
1.406 albertel 663: </div>
664: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
665: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
666: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
667: </div>
1.453 bisitz 668: <hr />
1.406 albertel 669: <div class="LC_edit_problem_header_randomize_row">
670: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
671: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.488 www 672: <input type="text" name="rndseed" size="24" value="'.
1.406 albertel 673: $rndseed.'"
674: onchange="javascript:document.lonhomework.changerandseed.click()" />';
675:
676: if (!$Apache::lonhomework::parsing_a_task) {
677: my $numtoanalyze=$env{'form.numtoanalyze'};
678: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 679: $result .= '<span class="LC_nobreak">'.
680: &mt('[_1] for [_2] versions.',
1.416 raeburn 681: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 682: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
683: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 684: $numtoanalyze.'" size="5" />').
685: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
686: '</span>';
687:
1.313 albertel 688: }
1.406 albertel 689:
690: $result.='
691: </div>
1.453 bisitz 692: <hr />
1.447 bisitz 693: <div>';
1.416 raeburn 694: $result.='<input type="hidden" name="problemmode" value="view" />';
695: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
696: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
697: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
698: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 699: $result.='
700: </div>
1.453 bisitz 701: <hr />
1.409 albertel 702: '.&Apache::lonxml::message_location().'
1.406 albertel 703: </div>';
1.159 albertel 704: return $result;
1.48 albertel 705: }
706:
1.65 albertel 707: sub initialize_storage {
1.357 albertel 708: my ($given_symb) = @_;
1.353 albertel 709: undef(%Apache::lonhomework::results);
710: undef(%Apache::lonhomework::history);
1.357 albertel 711: my ($symb,$courseid,$domain,$name) =
1.367 albertel 712: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 713:
714: # anonymous users (CODEd exams) have no data
715: if ($name eq 'anonymous'
716: && !defined($domain)) {
717: return;
718: }
719:
1.333 albertel 720: if ($env{'request.state'} eq 'construct'
721: || $symb eq ''
722: || $Apache::lonhomework::type eq 'practice') {
723:
724: my $namespace = $symb || $env{'request.uri'};
725: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 726: ($env{'form.resetdata'} eq &mt('New Problem Variation')
727: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 728: $env{'form.newrandomization'} eq &mt('New Randomization')) {
729: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
730: &Apache::lonxml::debug("Attempt reset");
731: }
1.159 albertel 732: %Apache::lonhomework::history=
1.333 albertel 733: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 734: my ($temp)=keys %Apache::lonhomework::history ;
735: &Apache::lonxml::debug("Return message of $temp");
736: } else {
737: %Apache::lonhomework::history=
738: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
739: }
1.353 albertel 740:
1.159 albertel 741: #ignore error conditions
1.67 albertel 742: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 743: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 744: }
745:
1.435 jms 746: =pod
747:
748: =item finalize_storage()
749:
750: Stores away the result has to a student's environment
751: checks form.grade_ for specific values, other wises stores
752: to the running users environment
753: Will increment totals for attempts, students, and corrects
754: if running user has student role.
755:
756: =cut
757:
758:
1.65 albertel 759: sub finalize_storage {
1.357 albertel 760: my ($given_symb) = @_;
1.159 albertel 761: my $result;
1.289 albertel 762: if (%Apache::lonhomework::results) {
1.323 albertel 763: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
764: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 765: my ($symb,$courseid,$domain,$name) =
1.367 albertel 766: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 767: if ($env{'request.state'} eq 'construct'
768: || $symb eq ''
769: || $Apache::lonhomework::type eq 'practice') {
770: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 771: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 772: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 773: $namespace,'',$domain,$name);
1.159 albertel 774: &Apache::lonxml::debug('Construct Store return message:'.$result);
775: } else {
776: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
777: $symb,$courseid,$domain,$name);
778: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 779: &store_aggregates($symb,$courseid);
1.159 albertel 780: }
1.323 albertel 781: } else {
782: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 783: }
1.159 albertel 784: return $result;
1.65 albertel 785: }
786:
1.435 jms 787: =pod
788:
789: item store_aggregates()
790:
791: Sends hash of values to be incremented in nohist_resourcetracker.db
792: for the course. Increments total number of attempts, unique students
793: and corrects for each part for an instance of a problem, as appropriate.
794:
795: =cut
796:
1.285 raeburn 797: sub store_aggregates {
798: my ($symb,$courseid) = @_;
1.479 raeburn 799: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 800: my @parts;
1.288 albertel 801: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
802: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 803: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 804: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 805: push(@parts, $1);
1.285 raeburn 806: }
807: }
1.286 albertel 808: foreach my $part (@parts) {
1.470 raeburn 809: if ($env{'request.role'} =~/^st/) {
810: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
811: eq 'APPROX_ANS' ||
812: $Apache::lonhomework::results{'resource.'.$part.'.award'}
813: eq 'EXACT_ANS') {
814: $aggregate{$symb."\0".$part."\0correct"} = 1;
815: }
816: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
817: $aggregate{$symb."\0".$part."\0users"} = 1;
818: } else {
819: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
820: if ($last_reset) {
821: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
822: $aggregate{$symb."\0".$part."\0users"} = 1;
823: }
824: }
825: }
826: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 827: }
1.470 raeburn 828: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 829: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
830: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
831: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
832: $randtrycounter{$symb."\0".$part} = 1;
833: } else {
834: $anoncounter{$symb."\0".$part} = 1;
835: }
1.470 raeburn 836: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
837: if ($needsrelease) {
838: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
839: if ($curr_required eq '') {
1.471 raeburn 840: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 841: } else {
842: my ($currmajor,$currminor) = split(/\./,$curr_required);
843: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
844: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 845: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 846: }
1.292 raeburn 847: }
848: }
1.285 raeburn 849: }
850: }
1.292 raeburn 851: if (keys (%aggregate) > 0) {
1.289 albertel 852: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 853: $cdomain,$cname);
854: }
1.472 raeburn 855: if (keys(%anoncounter) > 0) {
1.481 raeburn 856: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
857: $cdomain,$cname);
1.472 raeburn 858: }
1.479 raeburn 859: if (keys(%randtrycounter) > 0) {
1.481 raeburn 860: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
861: $cdomain,$cname);
1.479 raeburn 862: }
1.292 raeburn 863: }
1.289 albertel 864:
1.65 albertel 865: sub checkout_msg {
1.211 albertel 866: my %lt=&Apache::lonlocal::texthash(
867: 'resource'=>'The resource needs to be checked out',
868: '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.',
869: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
870: 'checkout'=>'Check out Exam for Viewing',
871: 'checkout?'=>'Check out Exam?');
1.352 albertel 872: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 873: return (<<ENDCHECKOUT);
1.211 albertel 874: <h2>$lt{'resource'}</h2>
875: <p>$lt{'id_expln'}</p>
1.449 bisitz 876: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 877: <form name="checkout" method="post" action="$uri">
1.91 albertel 878: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 879: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 880: </form>
881: ENDCHECKOUT
882: }
883:
1.252 albertel 884: sub firstaccess_msg {
1.253 albertel 885: my ($time,$symb)=@_;
1.414 albertel 886: my $result;
887: my @interval=&Apache::lonnet::EXT("resource.0.interval");
888: if ($interval[1] eq 'map') {
889: my ($map)=&Apache::lonnet::decode_symb($symb);
890: my $foldertitle=&Apache::lonnet::gettitle($map);
891:
892: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.418 bisitz 893: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
894: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
895: ,$foldertitle,$time)."</h2>";
1.414 albertel 896: } elsif ($interval[1] eq 'course') {
897: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.418 bisitz 898: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
899: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
900: ,$course,$time)."</h2>";
1.414 albertel 901: } else {
902: my $title=&Apache::lonnet::gettitle($symb);
1.418 bisitz 903: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.'
904: .' Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
905: ,$title,$time)."</h2>";
1.414 albertel 906: }
1.352 albertel 907: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 908: my $buttontext = &mt('Show Resource');
909: my $timertext = &mt('Start Timer?');
1.414 albertel 910: $result .= (<<ENDCHECKOUT);
1.444 bisitz 911: <form name="markaccess" method="post" action="$uri">
1.252 albertel 912: <input type="hidden" name="markaccess" value="yes" />
1.418 bisitz 913: <input type="button" name="accessbutton" value="$buttontext" onClick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 914: </form>
915: ENDCHECKOUT
1.414 albertel 916: return $result;
1.252 albertel 917: }
918:
1.204 albertel 919: sub init_problem_globals {
920: my ($type)=@_;
921: #initialize globals
1.308 foxr 922: # For problems, we start out in part 0 (outside a <part> tag).
923: # and part 0 is used to describe the main body of the <problem>
924: #
1.204 albertel 925: if ($type eq 'problem') {
926: $Apache::inputtags::part='0';
927: @Apache::inputtags::partlist=('0');
1.405 albertel 928: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 929: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 930:
1.266 albertel 931: } elsif ($type eq 'library') {
1.204 albertel 932: $Apache::inputtags::part='';
933: @Apache::inputtags::partlist=();
1.405 albertel 934: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 935: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 936:
1.304 albertel 937: } elsif ($type eq 'Task') {
938: $Apache::inputtags::part='0';
939: @Apache::inputtags::partlist=('0');
1.405 albertel 940: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 941: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 942: }
1.477 www 943: @Apache::functionplotresponse::callscripts=();
1.204 albertel 944: @Apache::inputtags::responselist = ();
945: @Apache::inputtags::importlist = ();
946: @Apache::inputtags::previous=();
947: @Apache::inputtags::previous_version=();
948: $Apache::structuretags::printanswer='No';
949: @Apache::structuretags::whileconds=();
950: @Apache::structuretags::whilebody=();
951: @Apache::structuretags::whileline=();
952: $Apache::lonhomework::scantronmode=0;
953: undef($Apache::lonhomework::name);
1.358 albertel 954: undef($Apache::lonhomework::default_type);
955: undef($Apache::lonhomework::type);
1.204 albertel 956: }
957:
958: sub reset_problem_globals {
959: my ($type)=@_;
960: undef(%Apache::lonhomework::history);
961: undef(%Apache::lonhomework::results);
962: undef($Apache::inputtags::part);
1.498 ! raeburn 963: if ($type eq 'Task') {
! 964: undef($Apache::inputtags::slot_name);
! 965: }
1.208 albertel 966: #don't undef this, lonhomework.pm takes care of this, we use this to
967: #detect if we try to do 2 problems in one file
968: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 969: undef($Apache::lonhomework::name);
1.358 albertel 970: undef($Apache::lonhomework::default_type);
971: undef($Apache::lonhomework::type);
972: undef($Apache::lonhomework::scantronmode);
973: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 974: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 975: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 976: }
977:
1.241 albertel 978: sub set_problem_state {
1.240 albertel 979: my ($part)=@_;
1.284 albertel 980: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 981: $Apache::lonhomework::history{"resource.$part.solved"}=
982: 'correct_by_student';
983: }
984: }
985:
1.241 albertel 986: sub get_problem_status {
987: my ($part)=@_;
1.267 albertel 988: my $problem_status;
1.284 albertel 989: if ($env{'request.state'} eq 'construct' &&
990: defined($env{'form.problemstatus'})) {
991: $problem_status=$env{'form.problemstatus'};
1.267 albertel 992: } else {
993: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
994: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 995: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 996: }
997: return $problem_status;
998: }
999:
1.9 albertel 1000: sub start_problem {
1.326 albertel 1001: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 1002:
1.311 foxr 1003: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 1004: if (!$Apache::lonxml::metamode) {
1005: &Apache::lonxml::startredirection();
1006: }
1.311 foxr 1007:
1.308 foxr 1008: # Problems don't nest and we don't allow more than one <problem> in
1009: # a .problem file.
1010: #
1.184 albertel 1011: if ( $Apache::inputtags::part ne '' ||
1012: $Apache::lonhomework::parsing_a_problem) {
1013: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 1014: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 1015: return '';
1016: }
1.184 albertel 1017:
1018: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 1019: &init_problem_globals('problem');
1.166 albertel 1020:
1.284 albertel 1021: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 1022: $Apache::lonhomework::scantronmode=1;
1023: }
1.161 albertel 1024:
1.159 albertel 1025: if ($target ne 'analyze') {
1.415 raeburn 1026: my $type = &Apache::lonnet::EXT('resource.0.type');
1027: $Apache::lonhomework::type=$type;
1.284 albertel 1028: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 1029: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 1030: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 1031: }
1.332 albertel 1032: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 1033: }
1.164 albertel 1034: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 1035: my $uri=$env{'request.uri'};
1.159 albertel 1036: if ($uri=~/\.(\w+)$/) {
1037: $Apache::lonhomework::type=$1;
1038: &Apache::lonxml::debug("Using type of $1");
1039: } else {
1040: $Apache::lonhomework::type='problem';
1041: &Apache::lonxml::debug("Using default type, problem, :$uri:");
1042: }
1.87 albertel 1043: }
1.301 albertel 1044: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 1045:
1.363 albertel 1046: &initialize_storage();
1.389 albertel 1047: if ($target ne 'analyze'
1048: && $env{'request.state'} eq 'construct') {
1049: &set_problem_state('0');
1050: }
1051:
1.366 albertel 1052: if ($target eq 'web') {
1053: &Apache::lonxml::debug(" grading history ");
1054: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1055: }
1.363 albertel 1056:
1.159 albertel 1057: #added vars to the scripting enviroment
1.213 albertel 1058: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1059: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1060: &Apache::run::run($expression,$safeeval);
1.159 albertel 1061: my $status;
1062: my $accessmsg;
1063:
1.343 albertel 1064: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 1065: my ($result,$form_tag_start);
1.354 albertel 1066: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1067: || $target eq 'edit') {
1.350 albertel 1068: ($result,$form_tag_start) =
1069: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1070: $name);
1071: }
1072:
1.284 albertel 1073: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1074:
1.479 raeburn 1075: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1076: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1077: $target eq 'tex') {
1.284 albertel 1078: if ($env{'form.markaccess'}) {
1.414 albertel 1079: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1080: &Apache::lonnet::set_first_access($interval[1]);
1.252 albertel 1081: }
1.479 raeburn 1082:
1083: ($status,$accessmsg,my $slot_name,my $slot) =
1084: &Apache::lonhomework::check_slot_access('0','problem');
1085: push (@Apache::inputtags::status,$status);
1086:
1.159 albertel 1087: #handle rand seed in construction space
1.479 raeburn 1088: my $rndseed=&setup_rndseed($safeeval,$target);
1.367 albertel 1089: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 1090:
1.333 albertel 1091: if ($env{'request.state'} ne "construct" &&
1092: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1093: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1094: $rndseed.'" />'.
1095: '<input type="submit" name="resetdata"
1096: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1097: if (exists($env{'form.username'})) {
1098: $form_tag_start.=
1.164 albertel 1099: '<input type="hidden" name="username"
1.284 albertel 1100: value="'.$env{'form.username'}.'" />';
1.334 albertel 1101: }
1.462 raeburn 1102: if ($env{'request.role.adv'}) {
1103: $form_tag_start.= ' <label class="LC_nobreak">'
1104: .'<input type="checkbox" name="showallfoils"';
1105: if (defined($env{'form.showallfoils'})) {
1106: $form_tag_start.=' checked="checked"';
1107: }
1108: $form_tag_start.= ' /> '
1109: .&mt('Show All Foils')
1110: .'</label>';
1111: }
1.417 www 1112: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1113: $form_tag_start.=&practice_problem_header();
1.417 www 1114: }
1.462 raeburn 1115: $form_tag_start.='<hr />';
1.479 raeburn 1116: } elsif (($env{'request.state'} ne "construct") &&
1117: ($Apache::lonhomework::type eq 'randomizetry') &&
1118: ($status eq 'CAN_ANSWER')) {
1119: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1120: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1121: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1122: }
1.324 albertel 1123:
1.159 albertel 1124: my $expression='$external::datestatus="'.$status.'";';
1125: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1126: &Apache::run::run($expression,$safeeval);
1127: &Apache::lonxml::debug("Got $status");
1.324 albertel 1128:
1.159 albertel 1129: if (( $status eq 'CLOSED' ) ||
1130: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1131: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1132: ( $status eq 'BANNED') ||
1.216 albertel 1133: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1134: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 1135: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1136: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1137: $style);
1.159 albertel 1138: if ( $target eq "web" ) {
1.343 albertel 1139: my $msg;
1.159 albertel 1140: if ($status eq 'UNAVAILABLE') {
1.245 albertel 1141: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.441 raeburn 1142: } elsif ($status eq 'NOT_IN_A_SLOT') {
1143: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.253 albertel 1144: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 1145: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 1146: }
1.216 albertel 1147: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1148: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1149: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1150: $msg.=&checkout_msg();
1.252 albertel 1151: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1152: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1153: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1154: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.159 albertel 1155: }
1156: $result.=$msg.'<br />';
1157: } elsif ($target eq 'tex') {
1.332 albertel 1158: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1159: : '\begin{minipage}{\textwidth}';
1.443 foxr 1160: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1161: $startminipage.'\vskip 0 mm';
1.159 albertel 1162: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1163: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1164: } else {
1.211 albertel 1165: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1166: }
1167: }
1.324 albertel 1168: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1169: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1170: $style);
1.324 albertel 1171: if ($target eq 'web') {
1.375 albertel 1172: $result .=
1173: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1174: } elsif ($target eq 'grade') {
1175: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1176: 'problem');
1177: }
1.159 albertel 1178: } elsif ($target eq 'web') {
1.360 albertel 1179: if ($status eq 'CAN_ANSWER'
1180: && $slot_name ne ''
1181: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
1182: # unproctored slot access, self checkin
1183: &Apache::bridgetask::check_in('problem',undef,undef,
1184: $slot_name);
1185: }
1.368 albertel 1186: $result.="\n $form_tag_start \t".
1.227 albertel 1187: '<input type="hidden" name="submitted" value="yes" />';
1188: # create a page header and exit
1.284 albertel 1189: if ($env{'request.state'} eq "construct") {
1190: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1191: if ($Apache::lonhomework::type eq 'practice') {
1192: $result.= '<input type="submit" name="resetdata" '.
1193: 'value="'.&mt('New Problem Variation').'" />'.
1194: &practice_problem_header().'<hr />';
1195: }
1.227 albertel 1196: }
1197: # if we are viewing someone else preserve that info
1.284 albertel 1198: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1199: foreach my $field ('symb','courseid','domain','username') {
1200: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1201: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1202: }
1.479 raeburn 1203: foreach my $field ('trial','questiontype') {
1204: if ($env{"form.grade_$field"} ne '') {
1205: $result .= '<input type="hidden" name="grade_'.$field.
1206: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1207: }
1208: }
1.159 albertel 1209: }
1.490 raeburn 1210: if ($env{'form.grade_imsexport'}) {
1211: $result = '';
1212: }
1.159 albertel 1213: } elsif ($target eq 'tex') {
1.319 foxr 1214: $result .= 'INSERTTEXFRONTMATTERHERE';
1215:
1.99 sakharuk 1216: }
1.159 albertel 1217: } elsif ($target eq 'edit') {
1.343 albertel 1218: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1219: $Apache::lonxml::warnings_error_header=
1220: &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 1221: my $temp=&Apache::edit::insertlist($target,$token);
1222: $result.=$temp;
1223: } elsif ($target eq 'modified') {
1224: $result=$token->[4];
1225: } else {
1226: # page_start returned a starting result, delete it if we don't need it
1227: $result = '';
1.99 sakharuk 1228: }
1.159 albertel 1229: return $result;
1.9 albertel 1230: }
1231:
1232: sub end_problem {
1.159 albertel 1233: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1234: my $result;
1.310 foxr 1235:
1.321 albertel 1236: if (!$Apache::lonxml::metamode) {
1237: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1238: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1239: }
1.319 foxr 1240:
1241: if ($target eq 'tex') {
1.321 albertel 1242: # Figure out the front matter and replace the
1243: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1244: # this in end_problem because whether or not we display due
1245: # dates depends on whether due dates have already been
1246: # displayed in the problem parts.
1247:
1.319 foxr 1248: my $frontmatter = '';
1249: my $startminipage = '';
1250: if (not $env{'form.problem_split'}=~/yes/) {
1251: $startminipage = '\begin{minipage}{\textwidth}';
1252: }
1253: my $id = $Apache::inputtags::part;
1254: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1255: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1256: my @packages = split /,/,$packages;
1257: my $allow_print_points = 0;
1258: foreach my $partial_key (@packages) {
1259: if ($partial_key=~m/^part_0$/) {
1260: $allow_print_points=1;
1261: }
1262: }
1263: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1264: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1265: if (lc($env{'course.'.$env{'request.course.id'}.
1266: '.disableexampointprint'}) eq 'yes') {
1267: $allow_print_points=0;
1268: }
1269: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1270: my $begin_doc=' \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$env{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent ';
1.319 foxr 1271: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1272: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1273:
1274: # Figure out what the due date is and if we need to print
1275: # it in the problem header. We have been logging the
1276: # last due date written to file.
1277:
1278: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1279: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1280: my $duedate_text = &mt('Due date: [_1]'
1281: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1282: my $temp_file;
1283: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1284:
1285: # Figure out what the last printed due date is or set it
1286: # to the epoch if no duedates have been printed.
1287:
1288: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1289: if (-e $filename) {
1290: $temp_file = Apache::File->new($filename);
1291: my @due_file = <$temp_file>;
1292: $due_file_content = $due_file[$#due_file];
1293: chomp $due_file_content;
1294: }
1295:
1296: # We display the due date iff it is not the same as the last
1297: # duedate in problem header ($due_file_content), and
1298: # none of our parts displayed a duedate.
1299: #
1300: my $parts_with_displayduedate;
1301: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1302: $parts_with_displayduedate =
1303: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1304: } else {
1305: $parts_with_displayduedate = 0;
1306: }
1307: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1308: $temp_file = Apache::File->new('>'.$filename);
1309: print $temp_file "$duetime\n";
1310: if (not $env{'request.symb'} =~ m/\.page_/) {
1311: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1312: $frontmatter .= $begin_doc.
1.448 bisitz 1313: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1314: } else {
1315: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1316: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1317: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1318: }
1.319 foxr 1319: }
1320: } else {
1.448 bisitz 1321: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1322: }
1323: } else {
1324: if (not $env{'request.symb'} =~ m/\.page_/) {
1325: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1326: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1327: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1328: }
1.319 foxr 1329: } else {
1.381 albertel 1330: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1331: }
1332: }
1333: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1334: }
1335:
1.159 albertel 1336: my $status=$Apache::inputtags::status['-1'];
1337: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1338: $target eq 'tex') {
1.249 albertel 1339: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1340: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1341: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1342: &Apache::inputtags::grade;
1.324 albertel 1343: } elsif ($status eq 'NEEDS_CHECKIN') {
1344: # no need to grade, and don't want to hide data
1.249 albertel 1345: } else {
1346: # move any submission data to .hidden
1347: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1348: }
1.159 albertel 1349: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1350: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1351: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1352: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1353: # if part is zero, no <part>s existed, so we need show the current
1354: # grading status
1355: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1356: $result.= $gradestatus;
1357: }
1358: if (
1.284 albertel 1359: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1360: ($target eq 'answer') || ($target eq 'tex')
1361: ) {
1.490 raeburn 1362: if (($target ne 'tex') &&
1363: ($env{'form.answer_output_mode'} ne 'tex') &&
1364: (!$env{'form.grade_imsexport'})) {
1.254 www 1365: $result.="</form>";
1.159 albertel 1366: }
1367: if ($target eq 'web') {
1.346 albertel 1368: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1369: } elsif ($target eq 'tex') {
1.178 sakharuk 1370: my $endminipage = '';
1.284 albertel 1371: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1372: $endminipage = '\end{minipage}';
1373: }
1.284 albertel 1374: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1375: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1376: } else {
1.262 sakharuk 1377: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1378: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1379: $result .= $endminipage.'\end{document} ';
1380: } else {
1.382 albertel 1381: $result .= $endminipage;
1.262 sakharuk 1382: }
1.159 albertel 1383: }
1384: }
1385: }
1.476 www 1386: if ($target eq 'web') {
1387: $result.=&Apache::functionplotresponse::init_script();
1388: }
1.159 albertel 1389: if ($target eq 'grade') {
1390: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1391: &finalize_storage();
1392: }
1.284 albertel 1393: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1394: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1395: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1396: # normally we get it from above, but in CSTR
1.172 albertel 1397: # we always show answer mode too.
1.159 albertel 1398: }
1399: } elsif ($target eq 'meta') {
1400: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1401: @Apache::inputtags::response=();
1.159 albertel 1402: $result=&Apache::response::mandatory_part_meta;
1403: }
1.215 albertel 1404: $result.=&Apache::response::meta_part_order();
1.258 albertel 1405: $result.=&Apache::response::meta_response_order();
1.159 albertel 1406: } elsif ($target eq 'edit') {
1407: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1408: $result .= &problem_edit_footer();
1.320 albertel 1409: } elsif ($target eq 'modified') {
1410: $result .= $token->[2];
1.159 albertel 1411: }
1.155 albertel 1412:
1.284 albertel 1413: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1414: &Apache::inputtags::check_for_duplicate_ids();
1415: }
1.204 albertel 1416:
1417: &reset_problem_globals('problem');
1.159 albertel 1418:
1419: return $result;
1.48 albertel 1420: }
1421:
1.108 albertel 1422:
1.48 albertel 1423: sub start_library {
1.159 albertel 1424: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1425: my ($result,$form_tag_start);
1.371 albertel 1426: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1427: &init_problem_globals('library');
1428: $Apache::lonhomework::type='problem';
1429: }
1.159 albertel 1430: if ($target eq 'edit') {
1.343 albertel 1431: ($result,$form_tag_start)=
1432: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1433: 'Edit');
1434: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1435: my $temp=&Apache::edit::insertlist($target,$token);
1436: $result.=$temp;
1437: } elsif ($target eq 'modified') {
1438: $result=$token->[4];
1.340 albertel 1439: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1440: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1441: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1442: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1443: ($result,$form_tag_start)=
1444: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1445: $name);
1.479 raeburn 1446: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 1447: $result.=" \n $form_tag_start".
1.159 albertel 1448: '<input type="hidden" name="submitted" value="yes" />';
1449: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1450: if ($Apache::lonhomework::type eq 'practice') {
1451: $result.= '<input type="submit" name="resetdata" '.
1452: 'value="'.&mt('New Problem Variation').'" />'.
1453: &practice_problem_header().'<hr />';
1454: }
1.159 albertel 1455: }
1456: return $result;
1.48 albertel 1457: }
1458:
1459: sub end_library {
1.159 albertel 1460: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1461: my $result='';
1462: if ($target eq 'edit') {
1463: $result=&problem_edit_footer();
1.371 albertel 1464: } elsif ($target eq 'web'
1465: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1466: && $env{'request.state'} eq "construct") {
1.349 albertel 1467: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1468: }
1.371 albertel 1469: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1470: &reset_problem_globals('library');
1471: }
1.159 albertel 1472: return $result;
1.197 www 1473: }
1474:
1475: sub start_definetag {
1.326 albertel 1476: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1477:
1478: my $result;
1479:
1480: my $name = $token->[2]->{'name'};
1.326 albertel 1481: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1482: if ($target eq 'web') {
1483: if ($name=~/^\//) {
1484: $result=
1485: '<br /><table class="LC_sty_end"><tr><th>'.
1486: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1487: } else {
1488: $result=
1489: '<br /><table class="LC_sty_begin"><tr><th>'.
1490: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1491: }
1492: $skip = &HTML::Entities::encode($skip, '<>&"');
1493: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1494: }
1495: return $result;
1496: }
1497:
1498: sub end_definetag {
1499: return '';
1.1 albertel 1500: }
1501:
1502: sub start_block {
1.201 albertel 1503: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1504:
1505: my $result;
1.1 albertel 1506:
1.339 albertel 1507: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1508: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1509: my $code = $token->[2]->{'condition'};
1.385 albertel 1510: if (defined($code) && $code ne '') {
1.137 albertel 1511: if (!$Apache::lonxml::default_homework_loaded) {
1512: &Apache::lonxml::default_homework_load($safeeval);
1513: }
1.131 albertel 1514: $result = &Apache::run::run($code,$safeeval);
1515: &Apache::lonxml::debug("block :$code: returned :$result:");
1516: } else {
1517: $result='1';
1518: }
1519: if ( ! $result ) {
1.201 albertel 1520: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1521: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1522: }
1523: $result='';
1524: } elsif ($target eq 'edit') {
1525: $result .=&Apache::edit::tag_start($target,$token);
1526: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1527: $token,40);
1528: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1529: } elsif ($target eq 'modified') {
1530: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1531: $safeeval,'condition');
1532: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1533: }
1.131 albertel 1534: return $result;
1.1 albertel 1535: }
1536:
1537: sub end_block {
1.167 www 1538: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1539: my $result;
1540: if ($target eq "edit") {
1541: $result.= &Apache::edit::tag_end($target,$token,'');
1542: }
1543: return $result;
1544: }
1545:
1546: sub start_languageblock {
1.201 albertel 1547: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1548:
1549: my $result;
1550:
1.339 albertel 1551: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1552: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1553: my $include = $token->[2]->{'include'};
1554: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1555: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.394 www 1556: # This should not even happen, since we should at least have the server language
1.398 www 1557: if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
1558: # Now loop over all languages in order of preference
1559: foreach my $preferred_language (@preferred_languages) {
1.394 www 1560: # If the languageblock has no arguments, show the contents
1.399 www 1561: $result=1;
1562: my $found=0;
1.394 www 1563: # Do we have an include argument?
1.398 www 1564: if ($include) {
1.394 www 1565: # If include is specified, by default, don't render the block
1.399 www 1566: $result=0;
1.398 www 1567: foreach my $included_language (split(/\,/,$include)) {
1.394 www 1568: # ... but if my preferred language is included, render it
1.398 www 1569: if ($included_language eq $preferred_language) {
1.399 www 1570: $result=1;
1571: $found=1;
1.398 www 1572: }
1573: }
1574: }
1.394 www 1575: # Do we have an exclude argument?
1.398 www 1576: if ($exclude) {
1.399 www 1577: $result=1;
1.398 www 1578: foreach my $excluded_language (split(/\,/,$exclude)) {
1579: if ($excluded_language eq $preferred_language) {
1.399 www 1580: $result=0;
1581: $found=1;
1.398 www 1582: }
1583: }
1584: }
1.399 www 1585: if ($found) { last; }
1.398 www 1586: }
1.201 albertel 1587: if ( ! $result ) {
1588: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1589: $style);
1590: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1591: }
1592: $result='';
1.167 www 1593: } elsif ($target eq 'edit') {
1594: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1595: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1596: $token,40);
1.211 albertel 1597: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1598: $token,40);
1599: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1600: } elsif ($target eq 'modified') {
1601: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1602: $safeeval,'include',
1603: 'exclude');
1.167 www 1604: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1605: }
1606: return $result;
1607: }
1608:
1609: sub end_languageblock {
1.170 www 1610: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1611: my $result;
1.201 albertel 1612: if ($target eq "edit") {
1.170 www 1613: $result.= &Apache::edit::tag_end($target,$token,'');
1614: }
1615: return $result;
1616: }
1617:
1.397 albertel 1618: {
1619: my %available_texts;
1620: sub start_translated {
1621: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1622: &Apache::lonxml::register('Apache::structuretags',('lang'));
1623: undef(%available_texts);
1624: }
1625:
1626: sub end_translated {
1627: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1628: my $result;
1629: #show the translation on viewable targets
1630: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1631: # or non-viewable targets, if it's embedded in something that
1632: # wants the output
1633: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1634: && &Apache::lonxml::in_redirection() ) ) {
1635: my @possibilities = keys(%available_texts);
1636: my $which =
1637: &Apache::loncommon::languages(\@possibilities) || 'default';
1638: $result = $available_texts{$which};
1639: }
1640: undef(%available_texts);
1641: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1642: return $result;
1643: }
1644:
1645:
1646: sub start_lang {
1647: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1648: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1649: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1650: &Apache::lonxml::startredirection();
1651: }
1652: return '';
1653: }
1654:
1655: sub end_lang {
1656: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1657: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1658: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1659: my $result = &Apache::lonxml::endredirection();
1660: my $which = &Apache::lonxml::get_param('which',$parstack,
1661: $safeeval);
1.431 raeburn 1662: if ($which=~/\w/) {
1663: $available_texts{$which} = $result;
1664: }
1665: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
1666: $safeeval);
1667: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
1668: if ($language=~/\w/) {
1669: $available_texts{$language} = $result;
1670: }
1.427 bisitz 1671: }
1672:
1.397 albertel 1673: }
1674: return '';
1675: }
1676: }
1677:
1.170 www 1678: sub start_instructorcomment {
1.201 albertel 1679: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1680:
1681: my $result;
1682:
1.339 albertel 1683: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1684: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 1685: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 1686: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1687: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1688: $parser,$style);
1.170 www 1689: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1690: }
1691: $result='';
1692: } elsif ($target eq 'edit') {
1693: $result .=&Apache::edit::tag_start($target,$token);
1694: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1695: }
1696: return $result;
1697: }
1698:
1699: sub end_instructorcomment {
1.159 albertel 1700: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1701: my $result;
1702: if ($target eq "edit") {
1703: $result.= &Apache::edit::tag_end($target,$token,'');
1704: }
1705: return $result;
1.4 tsai 1706: }
1707:
1708: sub start_while {
1.326 albertel 1709: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1710:
1.160 albertel 1711: my $result;
1.339 albertel 1712: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1713: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1714: my $code = $token->[2]->{'condition'};
1.4 tsai 1715:
1.160 albertel 1716: push( @Apache::structuretags::whileconds, $code);
1717: if (!$Apache::lonxml::default_homework_loaded) {
1718: &Apache::lonxml::default_homework_load($safeeval);
1719: }
1720: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1721: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1722: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1723: push( @Apache::structuretags::whileline, $token->[5]);
1724: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1725: if ( $result ) {
1726: &Apache::lonxml::newparser($parser,\$bodytext);
1727: }
1728: } elsif ($target eq 'edit') {
1729: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1730: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1731: $token,40);
1732: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1733: } elsif ($target eq 'modified') {
1734: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1735: $safeeval,'condition');
1736: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1737: }
1.160 albertel 1738: return $result;
1.4 tsai 1739: }
1740:
1741: sub end_while {
1.159 albertel 1742: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1743: my $result;
1744:
1.339 albertel 1745: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1746: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1747: my $code = pop(@Apache::structuretags::whileconds);
1748: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1749: my $line = pop(@Apache::structuretags::whileline);
1750: my $return = &Apache::run::run($code,$safeeval);
1751: my $starttime=time;
1752: my $error=0;
1753: while ($return) {
1754: if (time-$starttime >
1755: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1756: $return = 0; $error=1; next;
1.161 albertel 1757: }
1758: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1759: if ($target eq 'grade' || $target eq 'answer' ||
1760: $target eq 'analyze') {
1761: # grade/answer/analyze should produce no output but if we
1762: # are redirecting, the redirecter should know what to do
1763: # with the output
1764: if (!$Apache::lonxml::redirection) { undef($result); }
1765: }
1.161 albertel 1766: $return = &Apache::run::run($code,$safeeval);
1767: }
1768: if ($error) {
1.430 bisitz 1769: &Apache::lonxml::error('<pre>'.&mt('Code ran too long. It ran for more than').' '.$Apache::lonnet::perlvar{'lonScriptTimeout'}.' '.&mt('seconds occurred while running <while> on line').' '.$line.'</pre>');
1.160 albertel 1770: }
1771: } elsif ($target eq "edit") {
1772: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1773: }
1.160 albertel 1774: return $result;
1.1 albertel 1775: }
1.6 tsai 1776:
1.160 albertel 1777: # <randomlist show="1">
1.6 tsai 1778: # <tag1>..</tag1>
1779: # <tag2>..</tag2>
1780: # <tag3>..</tag3>
1.160 albertel 1781: # ...
1.6 tsai 1782: # </randomlist>
1783: sub start_randomlist {
1.326 albertel 1784: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1785: my $result;
1.339 albertel 1786: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1787: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1788: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1789: my $b_parser= HTML::LCParser->new(\$body);
1790: $b_parser->xml_mode(1);
1791: $b_parser->marked_sections(1);
1.159 albertel 1792: my $b_tok;
1793: my @randomlist;
1794: my $list_item;
1795: while($b_tok = $b_parser->get_token() ) {
1796: if($b_tok->[0] eq 'S') { # start tag
1797: # get content of the tag until matching end tag
1798: # get all text upto the matching tag
1799: # and push the content into @randomlist
1800: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1801: $b_parser);
1802: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1803: push(@randomlist,$list_item);
1804: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1805: # $list_item</b>";
1806: }
1807: if($b_tok->[0] eq 'T') { # text
1808: # what to do with text in between tags?
1809: # print "<b>TEXT $b_tok->[1]</b><br />";
1810: }
1811: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1812: # print "<b>END-TAG $b_tok->[1]</b><br />";
1813: # }
1814: }
1.303 albertel 1815: if (@randomlist) {
1816: my @idx_arr = (0 .. $#randomlist);
1817: &Apache::structuretags::shuffle(\@idx_arr);
1818: my $bodytext = '';
1819: my $show=$#randomlist;
1820: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1821: $showarg--;
1822: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 1823: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
1824: my @currlist;
1825: my $part = $Apache::inputtags::part;
1826: if ($part ne '') {
1827: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
1828: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
1829: if (!(grep(/^\Q$part\E$/,@currlist))) {
1830: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1831: }
1832: } else {
1833: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1834: }
1835: }
1836: }
1.303 albertel 1837: for(0 .. $show) {
1838: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1839: }
1840: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1841: }
1842: } elsif ($target eq 'edit' ) {
1843: $result .=&Apache::edit::tag_start($target,$token);
1844: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1845: $token,5);
1846: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1847: } elsif ($target eq 'modified' ) {
1848: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1849: $safeeval,'show');
1850: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1851: }
1852: return $result;
1.7 tsai 1853: }
1854:
1855: sub shuffle {
1856: my $a=shift;
1857: my $i;
1.303 albertel 1858: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1859: &Apache::response::pushrandomnumber();
1.159 albertel 1860: for($i=@$a;--$i;) {
1861: my $j=int(&Math::Random::random_uniform() * ($i+1));
1862: next if $i == $j;
1863: @$a[$i,$j] = @$a[$j,$i];
1864: }
1.251 albertel 1865: &Apache::response::poprandomnumber();
1.7 tsai 1866: }
1.6 tsai 1867: }
1868:
1869: sub end_randomlist {
1.159 albertel 1870: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1871: my $result;
1872: if ($target eq 'edit' ) {
1873: $result=&Apache::edit::tag_end($target,$token,
1874: 'End Randomly Parsed Block');
1875: }
1876: return $result;
1.6 tsai 1877: }
1878:
1.283 albertel 1879: sub ordered_show_check {
1880: my $last_part=$Apache::inputtags::partlist[-2];
1881: my $in_order=
1882: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1883: my $in_order_show=1;
1884: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1885: $in_order_show=&Apache::response::check_status($last_part);
1886: }
1887: return $in_order_show;
1888: }
1889:
1.469 www 1890:
1891: sub start_startpartmarker {
1892: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1893: my $result='';
1894: if ($target eq 'edit') {
1895: $result=&Apache::edit::tag_start($target,$token);
1896: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
1897: $result.=&Apache::edit::end_table();
1898:
1899: }
1900: return $result;
1901: }
1902:
1903: sub end_startpartmarker {
1904: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1905: my @result;
1906: if ($target eq 'edit') { $result[1]='no'; }
1907: return @result;
1908: }
1909:
1910: sub start_endpartmarker {
1911: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1912: my $result='';
1913: if ($target eq 'edit') {
1914: $result=&Apache::edit::tag_start($target,$token);
1915: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
1916: $result.=&Apache::edit::end_table();
1917:
1918: }
1919: return $result;
1920: }
1921:
1922: sub end_endpartmarker {
1923: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1924: my @result;
1925: if ($target eq 'edit') { $result[1]='no'; }
1926: return @result;
1927: }
1928:
1929:
1930:
1931:
1932:
1.11 albertel 1933: sub start_part {
1.326 albertel 1934: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1935: if (!$Apache::lonxml::metamode) {
1936: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1937: # duedates.
1938: }
1.159 albertel 1939: my $result='';
1.386 albertel 1940: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1941: $Apache::inputtags::part=$id;
1.177 albertel 1942: push(@Apache::inputtags::partlist,$id);
1943: @Apache::inputtags::response=();
1.159 albertel 1944: @Apache::inputtags::previous=();
1945: @Apache::inputtags::previous_version=();
1.405 albertel 1946: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 1947: &Apache::response::reset_params();
1948:
1.159 albertel 1949: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1950: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1951: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1952: my $in_order_show=&ordered_show_check();
1.214 albertel 1953: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1954: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1955: &Apache::run::run($expression,$safeeval);
1.159 albertel 1956:
1957: if ($target eq 'meta') {
1.224 www 1958: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1959: return &Apache::response::mandatory_part_meta.
1960: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1961: } elsif ($target eq 'web' || $target eq 'grade' ||
1962: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1963: if ($hidden || !$in_order_show) {
1.326 albertel 1964: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1965: } else {
1966: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1967: push (@Apache::inputtags::status,$status);
1968: my $expression='$external::datestatus="'.$status.'";';
1969: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1970: &Apache::run::run($expression,$safeeval);
1.284 albertel 1971: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1972: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1973: }
1.216 albertel 1974: if (( $status eq 'CLOSED' ) ||
1975: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1976: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1977: ( $status eq 'BANNED') ||
1978: ( $status eq 'UNAVAILABLE') ||
1979: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1980: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1981: $style);
1.159 albertel 1982: if ( $target eq "web" ) {
1.211 albertel 1983: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1984: } elsif ( $target eq 'tex' ) {
1.284 albertel 1985: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1986: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1987: } else {
1.211 albertel 1988: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1989: }
1.159 albertel 1990: }
1991: } else {
1992: if ($target eq 'tex') {
1.284 albertel 1993: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1994: if ($$tagstack[-2] eq 'td') {
1.388 foxr 1995: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1996: } else {
1997: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1998: }
1.195 sakharuk 1999: }
1.159 albertel 2000: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2001: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 2002: my @allkeys = split /,/,$allkeys;
2003: my $allow_print_points = 0;
2004: foreach my $partial_key (@allkeys) {
1.230 albertel 2005: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2006: if ($1 ne '0') {$allow_print_points=1;}
2007: }
2008: }
1.275 albertel 2009: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2010: if (defined($maxtries) && $maxtries < 0) {
2011: $allow_print_points=0;
2012: }
1.302 albertel 2013: if (lc($env{'course.'.$env{'request.course.id'}.
2014: '.disableexampointprint'}) eq 'yes') {
2015: $allow_print_points=0;
2016: }
1.463 foxr 2017: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2018: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2019:
2020: }
1.233 www 2021: } elsif ($target eq 'web') {
1.479 raeburn 2022: if ($status eq 'CAN_ANSWER') {
2023: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2024: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
2025: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
2026: my $num = scalar(@Apache::inputtags::partlist)-1;
2027: if ($probrandomize eq 'randomizetry') {
2028: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
2029: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2030: } else {
2031: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2032: if ($probrandtries ne $reqtries) {
2033: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2034: }
2035: }
2036: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
2037: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2038: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2039: }
2040: }
1.475 raeburn 2041: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2042: }
2043: }
2044: }
2045: } elsif ($target eq 'edit') {
2046: $result.=&Apache::edit::tag_start($target,$token);
2047: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2048: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2049: ' '.
2050: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2051: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2052: } elsif ($target eq 'modified') {
2053: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2054: $safeeval,'id','display');
1.159 albertel 2055: if ($constructtag) {
1.225 albertel 2056: #limiting ids to only letters numbers, and space
1.224 www 2057: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2058: $result = &Apache::edit::rebuild_tag($token);
2059: }
2060: }
2061: return $result;
1.11 albertel 2062: }
2063:
2064: sub end_part {
1.159 albertel 2065: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2066: &Apache::lonxml::debug("in end_part $target ");
2067: my $status=$Apache::inputtags::status['-1'];
2068: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2069: my $in_order_show=&ordered_show_check();
1.321 albertel 2070: my $result;
2071: if (!$Apache::lonxml::metamode) {
2072: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2073: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2074: }
1.312 albertel 2075: if ($target eq 'grade') {
1.249 albertel 2076: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2077: !$hidden && $in_order_show) {
1.311 foxr 2078: $result.=&Apache::inputtags::grade;
1.249 albertel 2079: } else {
2080: # move any submission data to .hidden
2081: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2082: }
1.283 albertel 2083: } elsif (($target eq 'web' || $target eq 'tex') &&
2084: !$hidden && $in_order_show) {
1.159 albertel 2085: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2086: $target);
1.490 raeburn 2087: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2088: ($env{'form.grade_imsexport'})) {
1.212 albertel 2089: $gradestatus='';
2090: }
1.311 foxr 2091: $result.=$gradestatus;
1.265 sakharuk 2092: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2093: } elsif ($target eq 'edit') {
1.311 foxr 2094: $result.=&Apache::edit::end_table();
1.322 albertel 2095: } elsif ($target eq 'modified') {
2096: $result .= $token->[2];
1.159 albertel 2097: }
2098: pop @Apache::inputtags::status;
2099: $Apache::inputtags::part='';
1.295 albertel 2100: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2101: return $result;
1.11 albertel 2102: }
1.1 albertel 2103:
1.25 albertel 2104: sub start_preduedate {
1.326 albertel 2105: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2106: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2107: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2108: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2109: if (!$Apache::lonhomework::scantronmode &&
2110: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2111: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2112: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2113: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2114: }
1.24 albertel 2115: }
1.159 albertel 2116: return '';
1.24 albertel 2117: }
2118:
1.25 albertel 2119: sub end_preduedate {
1.159 albertel 2120: return '';
1.24 albertel 2121: }
2122:
1.369 foxr 2123: # In all the modes where <postanswerdate> text is
2124: # displayable, all we do is eat up the text between the start/stop
2125: # tags if the conditions are not right to display it.
1.25 albertel 2126: sub start_postanswerdate {
1.326 albertel 2127: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2128: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2129: &Apache::lonnet::allowed('pav',
2130: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2131: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2132: $target eq 'tex' ) {
1.300 albertel 2133: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2134: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2135: (($target eq 'tex') && !$pav)) {
1.326 albertel 2136: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2137: }
2138: }
2139: return '';
1.24 albertel 2140: }
2141:
1.25 albertel 2142: sub end_postanswerdate {
1.159 albertel 2143: return '';
1.24 albertel 2144: }
2145:
1.25 albertel 2146: sub start_notsolved {
1.326 albertel 2147: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2148: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2149: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2150: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2151: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2152: if ($gradestatus =~ /^correct/ &&
2153: &Apache::response::show_answer()) {
1.159 albertel 2154: &Apache::lonxml::debug("skipping");
1.326 albertel 2155: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2156: }
1.24 albertel 2157: }
1.159 albertel 2158: return '';
1.24 albertel 2159: }
2160:
1.25 albertel 2161: sub end_notsolved {
1.159 albertel 2162: return '';
1.24 albertel 2163: }
2164:
2165: sub start_solved {
1.326 albertel 2166: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2167: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2168: $target eq 'tex') {
2169: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2170: if ($gradestatus !~ /^correct/ ||
2171: !&Apache::response::show_answer()) {
1.326 albertel 2172: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2173: }
1.24 albertel 2174: }
1.159 albertel 2175: return '';
1.24 albertel 2176: }
2177:
2178: sub end_solved {
1.248 albertel 2179: return '';
2180: }
2181:
2182: sub start_problemtype {
1.326 albertel 2183: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2184: my $result;
1.339 albertel 2185: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2186: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2187: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2188: if (!defined($mode)) { $mode='show'; }
2189: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2190: my $found=0;
2191: foreach my $type (split(',',$for)) {
2192: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2193: }
2194: if ($mode eq 'show' && !$found) {
1.326 albertel 2195: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2196: }
2197: if ($mode eq 'hide' && $found) {
1.326 albertel 2198: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2199: }
2200: } elsif ($target eq 'edit') {
2201: $result .=&Apache::edit::tag_start($target,$token);
2202: $result.=&Apache::edit::select_arg('Mode:','mode',
2203: [['show','Show'],
2204: ['hide','Hide']]
2205: ,$token);
2206: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
2207: [ ['exam','Exam/Quiz Problem'],
2208: ['survey','Survey'],
1.465 raeburn 2209: ['surveycred','Survey (with credit)'],
2210: ['anonsurvey','Anonymous Survey'],
2211: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2212: ['problem','Homework Problem'],
1.479 raeburn 2213: ['practice','Practice Problem'],
2214: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2215: ,$token);
2216: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2217: } elsif ($target eq 'modified') {
2218: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2219: $safeeval,'mode','for');
2220: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2221: }
2222: return $result;
2223: }
2224:
2225: sub end_problemtype {
1.159 albertel 2226: return '';
1.24 albertel 2227: }
1.34 albertel 2228:
2229: sub start_startouttext {
1.159 albertel 2230: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2231: my @result=(''.'');
2232: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2233:
2234: my $nesting =
2235: &Apache::lonxml::set_state('outtext',
2236: &Apache::lonxml::get_state('outtext')+1);
2237: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2238: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2239: }
1.159 albertel 2240: return (@result);
1.34 albertel 2241: }
1.159 albertel 2242:
1.34 albertel 2243: sub end_startouttext {
1.326 albertel 2244: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2245: my $result='';
2246: my $text='';
2247: if ($target eq 'edit') {
1.424 foxr 2248: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2249: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 2250: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 2251: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2252: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 2253: .'</span></td>'
2254: .'<td align="left"><span id="math_'.$areaid.'" />'
2255: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
2256: .'<span></td>'
2257: .'<td>'
2258: .&Apache::edit::insertlist($target,$token)
2259: .'</td>'
2260: .'<td align="right" valign="top">' .
2261: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2262: &Apache::edit::end_row().
1.362 albertel 2263: &Apache::edit::start_spanning_row()."\n".
1.255 www 2264: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2265: }
2266: if ($target eq 'modified') {
1.219 albertel 2267: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2268: }
2269: if ($target eq 'tex') {
2270: $result .= '\noindent ';
2271: }
2272: return $result;
1.34 albertel 2273: }
1.159 albertel 2274:
1.34 albertel 2275: sub start_endouttext {
1.159 albertel 2276: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2277: my $result='';
2278: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2279: if ($target eq "modified") {
2280: $result='<endouttext />'.
1.377 albertel 2281: &Apache::edit::handle_insertafter('startouttext');
2282: }
1.404 albertel 2283:
2284: my $nesting =
2285: &Apache::lonxml::set_state('outtext',
2286: &Apache::lonxml::get_state('outtext')-1);
2287: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2288: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2289: &Apache::lonxml::set_state('outtext', 0);
2290: }
1.159 albertel 2291: return $result;
1.34 albertel 2292: }
1.159 albertel 2293:
1.34 albertel 2294: sub end_endouttext {
1.159 albertel 2295: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2296: my @result=('','');
2297: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2298: return (@result);
1.34 albertel 2299: }
1.159 albertel 2300:
1.45 albertel 2301: sub delete_startouttext {
1.326 albertel 2302: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2303: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2304: my $text=$$parser['-1']->get_text("/endouttext");
2305: my $ntoken=$$parser['-1']->get_token();
2306: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2307: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2308: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2309: # they did the last time round
2310: &Apache::lonxml::increasedepth($ntoken);
2311: &Apache::lonxml::decreasedepth($ntoken);
2312: return 1;
1.193 www 2313: }
2314:
2315: sub start_simpleeditbutton {
2316: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2317: my $result='';
1.284 albertel 2318: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2319: ($target eq 'web') &&
1.330 albertel 2320: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2321: my $url=$env{'request.noversionuri'};
1.193 www 2322: $url=~s/\?.*$//;
1.367 albertel 2323: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 2324: # Warning makes more sense and is more important on edit screen
1.442 bisitz 2325: # $result='<p class="LC_warning">'
2326: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2327: # .&Apache::loncommon::help_open_topic('Caching')
2328: # .'</p>';
1.486 www 2329: $result.=&Apache::loncommon::head_subbox(
2330: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 2331: .&Apache::lonhtmlcommon::add_item_funclist(
2332: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
2333: .&mt('Edit').'</a>')
1.486 www 2334: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 2335:
1.193 www 2336: }
2337: return $result;
2338: }
2339:
2340: sub end_simpleeditbutton {
2341: return '';
1.45 albertel 2342: }
1.34 albertel 2343:
1.428 raeburn 2344: sub practice_problem_header {
2345: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2346: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2347: '</span>';
2348: }
2349:
1.479 raeburn 2350: sub randomizetry_problem_header {
2351: my ($problemstatus,$reqtries) = @_;
2352: my ($header,$text);
2353: if ($reqtries > 1) {
2354: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
2355: if (($problemstatus eq 'no') ||
2356: ($problemstatus eq 'no_feedback_ever')) {
2357: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2358: } else {
2359: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2360: }
2361: } else {
2362: $header = &mt('New Problem Variation Each Try');
2363: if (($problemstatus eq 'no') ||
2364: ($problemstatus eq 'no_feedback_ever')) {
2365: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
2366:
2367: } else {
2368: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
2369: }
2370: }
2371: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
2372: '<span class="LC_info">'.$text.'</span><hr />';
2373: }
2374:
2375: sub randomizetry_part_header {
2376: my ($problemstatus,$reqtries,$num) = @_;
2377: my ($header,$text);
2378: if ($reqtries eq 'none') {
2379: $header = &mt('No Question Variation');
2380: $text = &mt('For this question there will no new variation after a try.');
2381: } elsif ($reqtries > 1) {
2382: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
2383: if (($problemstatus eq 'no') ||
2384: ($problemstatus eq 'no_feedback_ever')) {
2385: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2386: } else {
2387: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2388: }
2389: } else {
2390: $header = &mt('New Question Variation For Each Try');
2391: if (($problemstatus eq 'no') ||
2392: ($problemstatus eq 'no_feedback_ever')) {
2393: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
2394: } else {
2395: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
2396: }
2397: }
2398: my $output;
2399: if ($num > 1) {
2400: $output .= '<hr />';
2401: }
2402: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
2403: '<span class="LC_info">'.$text.'</span><br /><br />';
2404: return $output;
2405: }
2406:
1.1 albertel 2407: 1;
2408: __END__
1.435 jms 2409:
2410: =pod
2411:
2412: =back
2413:
2414: =cut
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