Annotation of loncom/homework/structuretags.pm, revision 1.499
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.499 ! raeburn 4: # $Id: structuretags.pm,v 1.498 2011/12/10 17:53:45 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') ||
1.499 ! raeburn 1135: ( $status eq 'NOTRESERVABLE') ||
! 1136: ( $status eq 'RESERVABLE') ||
! 1137: ( $status eq 'RESERVABLE_LATER') ||
1.216 albertel 1138: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1139: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1140: $style);
1.159 albertel 1141: if ( $target eq "web" ) {
1.343 albertel 1142: my $msg;
1.159 albertel 1143: if ($status eq 'UNAVAILABLE') {
1.245 albertel 1144: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.441 raeburn 1145: } elsif ($status eq 'NOT_IN_A_SLOT') {
1146: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.499 ! raeburn 1147: } elsif (($status eq 'RESERVABLE') || ($status eq 'RESERVABLE_LATER') ||
! 1148: ($status eq 'NOTRESERVABLE')) {
! 1149: $msg.='<h1>'.&mt('Access requires reservation to work at specific time/place.').'</h1>';
1.253 albertel 1150: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 1151: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.499 ! raeburn 1152: }
1.216 albertel 1153: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1154: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1155: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1156: $msg.=&checkout_msg();
1.252 albertel 1157: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1158: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1159: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1160: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.499 ! raeburn 1161: } elsif ($status eq 'RESERVABLE') {
! 1162: $msg.=&mt('Available to make a reservation.').' '.&mt('Reservation window closes [_1].',
! 1163: &Apache::lonnavmaps::timeToHumanString($accessmsg,'end')).
! 1164: '<br />'.
! 1165: &Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
! 1166: } elsif ($status eq 'RESERVABLE_LATER') {
! 1167: $msg.=&mt('Window to make a reservation will open [_1].',
! 1168: &Apache::lonnavmaps::timeToHumanString($accessmsg,'start'));
! 1169: } elsif ($status eq 'NOTRESERVABLE') {
! 1170: $msg.=&mt('Not available to make a reservation.');
1.159 albertel 1171: }
1172: $result.=$msg.'<br />';
1173: } elsif ($target eq 'tex') {
1.332 albertel 1174: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1175: : '\begin{minipage}{\textwidth}';
1.443 foxr 1176: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1177: $startminipage.'\vskip 0 mm';
1.159 albertel 1178: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1179: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1180: } else {
1.211 albertel 1181: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1182: }
1183: }
1.324 albertel 1184: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1185: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1186: $style);
1.324 albertel 1187: if ($target eq 'web') {
1.375 albertel 1188: $result .=
1189: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1190: } elsif ($target eq 'grade') {
1191: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1192: 'problem');
1193: }
1.159 albertel 1194: } elsif ($target eq 'web') {
1.360 albertel 1195: if ($status eq 'CAN_ANSWER'
1196: && $slot_name ne ''
1197: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
1198: # unproctored slot access, self checkin
1199: &Apache::bridgetask::check_in('problem',undef,undef,
1200: $slot_name);
1201: }
1.368 albertel 1202: $result.="\n $form_tag_start \t".
1.227 albertel 1203: '<input type="hidden" name="submitted" value="yes" />';
1204: # create a page header and exit
1.284 albertel 1205: if ($env{'request.state'} eq "construct") {
1206: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1207: if ($Apache::lonhomework::type eq 'practice') {
1208: $result.= '<input type="submit" name="resetdata" '.
1209: 'value="'.&mt('New Problem Variation').'" />'.
1210: &practice_problem_header().'<hr />';
1211: }
1.227 albertel 1212: }
1213: # if we are viewing someone else preserve that info
1.284 albertel 1214: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1215: foreach my $field ('symb','courseid','domain','username') {
1216: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1217: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1218: }
1.479 raeburn 1219: foreach my $field ('trial','questiontype') {
1220: if ($env{"form.grade_$field"} ne '') {
1221: $result .= '<input type="hidden" name="grade_'.$field.
1222: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1223: }
1224: }
1.159 albertel 1225: }
1.490 raeburn 1226: if ($env{'form.grade_imsexport'}) {
1227: $result = '';
1228: }
1.159 albertel 1229: } elsif ($target eq 'tex') {
1.319 foxr 1230: $result .= 'INSERTTEXFRONTMATTERHERE';
1231:
1.99 sakharuk 1232: }
1.159 albertel 1233: } elsif ($target eq 'edit') {
1.343 albertel 1234: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1235: $Apache::lonxml::warnings_error_header=
1236: &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 1237: my $temp=&Apache::edit::insertlist($target,$token);
1238: $result.=$temp;
1239: } elsif ($target eq 'modified') {
1240: $result=$token->[4];
1241: } else {
1242: # page_start returned a starting result, delete it if we don't need it
1243: $result = '';
1.99 sakharuk 1244: }
1.159 albertel 1245: return $result;
1.9 albertel 1246: }
1247:
1248: sub end_problem {
1.159 albertel 1249: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1250: my $result;
1.310 foxr 1251:
1.321 albertel 1252: if (!$Apache::lonxml::metamode) {
1253: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1254: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1255: }
1.319 foxr 1256:
1257: if ($target eq 'tex') {
1.321 albertel 1258: # Figure out the front matter and replace the
1259: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1260: # this in end_problem because whether or not we display due
1261: # dates depends on whether due dates have already been
1262: # displayed in the problem parts.
1263:
1.319 foxr 1264: my $frontmatter = '';
1265: my $startminipage = '';
1266: if (not $env{'form.problem_split'}=~/yes/) {
1267: $startminipage = '\begin{minipage}{\textwidth}';
1268: }
1269: my $id = $Apache::inputtags::part;
1270: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1271: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1272: my @packages = split /,/,$packages;
1273: my $allow_print_points = 0;
1274: foreach my $partial_key (@packages) {
1275: if ($partial_key=~m/^part_0$/) {
1276: $allow_print_points=1;
1277: }
1278: }
1279: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1280: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1281: if (lc($env{'course.'.$env{'request.course.id'}.
1282: '.disableexampointprint'}) eq 'yes') {
1283: $allow_print_points=0;
1284: }
1285: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1286: 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 1287: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1288: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1289:
1290: # Figure out what the due date is and if we need to print
1291: # it in the problem header. We have been logging the
1292: # last due date written to file.
1293:
1294: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1295: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1296: my $duedate_text = &mt('Due date: [_1]'
1297: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1298: my $temp_file;
1299: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1300:
1301: # Figure out what the last printed due date is or set it
1302: # to the epoch if no duedates have been printed.
1303:
1304: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1305: if (-e $filename) {
1306: $temp_file = Apache::File->new($filename);
1307: my @due_file = <$temp_file>;
1308: $due_file_content = $due_file[$#due_file];
1309: chomp $due_file_content;
1310: }
1311:
1312: # We display the due date iff it is not the same as the last
1313: # duedate in problem header ($due_file_content), and
1314: # none of our parts displayed a duedate.
1315: #
1316: my $parts_with_displayduedate;
1317: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1318: $parts_with_displayduedate =
1319: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1320: } else {
1321: $parts_with_displayduedate = 0;
1322: }
1323: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1324: $temp_file = Apache::File->new('>'.$filename);
1325: print $temp_file "$duetime\n";
1326: if (not $env{'request.symb'} =~ m/\.page_/) {
1327: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1328: $frontmatter .= $begin_doc.
1.448 bisitz 1329: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1330: } else {
1331: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1332: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1.492 christia 1333: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1334: }
1.319 foxr 1335: }
1336: } else {
1.448 bisitz 1337: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1338: }
1339: } else {
1340: if (not $env{'request.symb'} =~ m/\.page_/) {
1341: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1342: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1.492 christia 1343: $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 1344: }
1.319 foxr 1345: } else {
1.381 albertel 1346: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1347: }
1348: }
1349: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1350: }
1351:
1.159 albertel 1352: my $status=$Apache::inputtags::status['-1'];
1353: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1354: $target eq 'tex') {
1.249 albertel 1355: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1356: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1357: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1358: &Apache::inputtags::grade;
1.324 albertel 1359: } elsif ($status eq 'NEEDS_CHECKIN') {
1360: # no need to grade, and don't want to hide data
1.249 albertel 1361: } else {
1362: # move any submission data to .hidden
1363: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1364: }
1.159 albertel 1365: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1366: $Apache::inputtags::part eq '0' &&
1.490 raeburn 1367: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
1368: && !$env{'form.grade_imsexport'}) {
1.159 albertel 1369: # if part is zero, no <part>s existed, so we need show the current
1370: # grading status
1371: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1372: $result.= $gradestatus;
1373: }
1374: if (
1.284 albertel 1375: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1376: ($target eq 'answer') || ($target eq 'tex')
1377: ) {
1.490 raeburn 1378: if (($target ne 'tex') &&
1379: ($env{'form.answer_output_mode'} ne 'tex') &&
1380: (!$env{'form.grade_imsexport'})) {
1.254 www 1381: $result.="</form>";
1.159 albertel 1382: }
1383: if ($target eq 'web') {
1.346 albertel 1384: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1385: } elsif ($target eq 'tex') {
1.178 sakharuk 1386: my $endminipage = '';
1.284 albertel 1387: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1388: $endminipage = '\end{minipage}';
1389: }
1.284 albertel 1390: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1391: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1392: } else {
1.262 sakharuk 1393: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1394: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1395: $result .= $endminipage.'\end{document} ';
1396: } else {
1.382 albertel 1397: $result .= $endminipage;
1.262 sakharuk 1398: }
1.159 albertel 1399: }
1400: }
1401: }
1.476 www 1402: if ($target eq 'web') {
1403: $result.=&Apache::functionplotresponse::init_script();
1404: }
1.159 albertel 1405: if ($target eq 'grade') {
1406: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1407: &finalize_storage();
1408: }
1.284 albertel 1409: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1410: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1411: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1412: # normally we get it from above, but in CSTR
1.172 albertel 1413: # we always show answer mode too.
1.159 albertel 1414: }
1415: } elsif ($target eq 'meta') {
1416: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1417: @Apache::inputtags::response=();
1.159 albertel 1418: $result=&Apache::response::mandatory_part_meta;
1419: }
1.215 albertel 1420: $result.=&Apache::response::meta_part_order();
1.258 albertel 1421: $result.=&Apache::response::meta_response_order();
1.159 albertel 1422: } elsif ($target eq 'edit') {
1423: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1424: $result .= &problem_edit_footer();
1.320 albertel 1425: } elsif ($target eq 'modified') {
1426: $result .= $token->[2];
1.159 albertel 1427: }
1.155 albertel 1428:
1.284 albertel 1429: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1430: &Apache::inputtags::check_for_duplicate_ids();
1431: }
1.204 albertel 1432:
1433: &reset_problem_globals('problem');
1.159 albertel 1434:
1435: return $result;
1.48 albertel 1436: }
1437:
1.108 albertel 1438:
1.48 albertel 1439: sub start_library {
1.159 albertel 1440: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1441: my ($result,$form_tag_start);
1.371 albertel 1442: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1443: &init_problem_globals('library');
1444: $Apache::lonhomework::type='problem';
1445: }
1.159 albertel 1446: if ($target eq 'edit') {
1.343 albertel 1447: ($result,$form_tag_start)=
1448: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1449: 'Edit');
1450: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1451: my $temp=&Apache::edit::insertlist($target,$token);
1452: $result.=$temp;
1453: } elsif ($target eq 'modified') {
1454: $result=$token->[4];
1.340 albertel 1455: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1456: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1457: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1458: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1459: ($result,$form_tag_start)=
1460: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1461: $name);
1.479 raeburn 1462: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 1463: $result.=" \n $form_tag_start".
1.159 albertel 1464: '<input type="hidden" name="submitted" value="yes" />';
1465: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1466: if ($Apache::lonhomework::type eq 'practice') {
1467: $result.= '<input type="submit" name="resetdata" '.
1468: 'value="'.&mt('New Problem Variation').'" />'.
1469: &practice_problem_header().'<hr />';
1470: }
1.159 albertel 1471: }
1472: return $result;
1.48 albertel 1473: }
1474:
1475: sub end_library {
1.159 albertel 1476: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1477: my $result='';
1478: if ($target eq 'edit') {
1479: $result=&problem_edit_footer();
1.371 albertel 1480: } elsif ($target eq 'web'
1481: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1482: && $env{'request.state'} eq "construct") {
1.349 albertel 1483: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1484: }
1.371 albertel 1485: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1486: &reset_problem_globals('library');
1487: }
1.159 albertel 1488: return $result;
1.197 www 1489: }
1490:
1491: sub start_definetag {
1.326 albertel 1492: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1493:
1494: my $result;
1495:
1496: my $name = $token->[2]->{'name'};
1.326 albertel 1497: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1498: if ($target eq 'web') {
1499: if ($name=~/^\//) {
1500: $result=
1501: '<br /><table class="LC_sty_end"><tr><th>'.
1502: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1503: } else {
1504: $result=
1505: '<br /><table class="LC_sty_begin"><tr><th>'.
1506: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1507: }
1508: $skip = &HTML::Entities::encode($skip, '<>&"');
1509: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1510: }
1511: return $result;
1512: }
1513:
1514: sub end_definetag {
1515: return '';
1.1 albertel 1516: }
1517:
1518: sub start_block {
1.201 albertel 1519: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1520:
1521: my $result;
1.1 albertel 1522:
1.339 albertel 1523: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1524: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1525: my $code = $token->[2]->{'condition'};
1.385 albertel 1526: if (defined($code) && $code ne '') {
1.137 albertel 1527: if (!$Apache::lonxml::default_homework_loaded) {
1528: &Apache::lonxml::default_homework_load($safeeval);
1529: }
1.131 albertel 1530: $result = &Apache::run::run($code,$safeeval);
1531: &Apache::lonxml::debug("block :$code: returned :$result:");
1532: } else {
1533: $result='1';
1534: }
1535: if ( ! $result ) {
1.201 albertel 1536: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1537: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1538: }
1539: $result='';
1540: } elsif ($target eq 'edit') {
1541: $result .=&Apache::edit::tag_start($target,$token);
1542: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1543: $token,40);
1544: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1545: } elsif ($target eq 'modified') {
1546: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1547: $safeeval,'condition');
1548: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1549: }
1.131 albertel 1550: return $result;
1.1 albertel 1551: }
1552:
1553: sub end_block {
1.167 www 1554: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1555: my $result;
1556: if ($target eq "edit") {
1557: $result.= &Apache::edit::tag_end($target,$token,'');
1558: }
1559: return $result;
1560: }
1561:
1562: sub start_languageblock {
1.201 albertel 1563: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1564:
1565: my $result;
1566:
1.339 albertel 1567: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1568: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1569: my $include = $token->[2]->{'include'};
1570: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1571: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.394 www 1572: # This should not even happen, since we should at least have the server language
1.398 www 1573: if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
1574: # Now loop over all languages in order of preference
1575: foreach my $preferred_language (@preferred_languages) {
1.394 www 1576: # If the languageblock has no arguments, show the contents
1.399 www 1577: $result=1;
1578: my $found=0;
1.394 www 1579: # Do we have an include argument?
1.398 www 1580: if ($include) {
1.394 www 1581: # If include is specified, by default, don't render the block
1.399 www 1582: $result=0;
1.398 www 1583: foreach my $included_language (split(/\,/,$include)) {
1.394 www 1584: # ... but if my preferred language is included, render it
1.398 www 1585: if ($included_language eq $preferred_language) {
1.399 www 1586: $result=1;
1587: $found=1;
1.398 www 1588: }
1589: }
1590: }
1.394 www 1591: # Do we have an exclude argument?
1.398 www 1592: if ($exclude) {
1.399 www 1593: $result=1;
1.398 www 1594: foreach my $excluded_language (split(/\,/,$exclude)) {
1595: if ($excluded_language eq $preferred_language) {
1.399 www 1596: $result=0;
1597: $found=1;
1.398 www 1598: }
1599: }
1600: }
1.399 www 1601: if ($found) { last; }
1.398 www 1602: }
1.201 albertel 1603: if ( ! $result ) {
1604: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1605: $style);
1606: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1607: }
1608: $result='';
1.167 www 1609: } elsif ($target eq 'edit') {
1610: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1611: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1612: $token,40);
1.211 albertel 1613: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1614: $token,40);
1615: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1616: } elsif ($target eq 'modified') {
1617: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1618: $safeeval,'include',
1619: 'exclude');
1.167 www 1620: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1621: }
1622: return $result;
1623: }
1624:
1625: sub end_languageblock {
1.170 www 1626: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1627: my $result;
1.201 albertel 1628: if ($target eq "edit") {
1.170 www 1629: $result.= &Apache::edit::tag_end($target,$token,'');
1630: }
1631: return $result;
1632: }
1633:
1.397 albertel 1634: {
1635: my %available_texts;
1636: sub start_translated {
1637: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1638: &Apache::lonxml::register('Apache::structuretags',('lang'));
1639: undef(%available_texts);
1640: }
1641:
1642: sub end_translated {
1643: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1644: my $result;
1645: #show the translation on viewable targets
1646: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1647: # or non-viewable targets, if it's embedded in something that
1648: # wants the output
1649: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1650: && &Apache::lonxml::in_redirection() ) ) {
1651: my @possibilities = keys(%available_texts);
1652: my $which =
1653: &Apache::loncommon::languages(\@possibilities) || 'default';
1654: $result = $available_texts{$which};
1655: }
1656: undef(%available_texts);
1657: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1658: return $result;
1659: }
1660:
1661:
1662: sub start_lang {
1663: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1664: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1665: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1666: &Apache::lonxml::startredirection();
1667: }
1668: return '';
1669: }
1670:
1671: sub end_lang {
1672: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1673: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1674: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1675: my $result = &Apache::lonxml::endredirection();
1676: my $which = &Apache::lonxml::get_param('which',$parstack,
1677: $safeeval);
1.431 raeburn 1678: if ($which=~/\w/) {
1679: $available_texts{$which} = $result;
1680: }
1681: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
1682: $safeeval);
1683: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
1684: if ($language=~/\w/) {
1685: $available_texts{$language} = $result;
1686: }
1.427 bisitz 1687: }
1688:
1.397 albertel 1689: }
1690: return '';
1691: }
1692: }
1693:
1.170 www 1694: sub start_instructorcomment {
1.201 albertel 1695: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1696:
1697: my $result;
1698:
1.339 albertel 1699: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1700: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 1701: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 1702: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1703: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1704: $parser,$style);
1.170 www 1705: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1706: }
1707: $result='';
1708: } elsif ($target eq 'edit') {
1709: $result .=&Apache::edit::tag_start($target,$token);
1710: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1711: }
1712: return $result;
1713: }
1714:
1715: sub end_instructorcomment {
1.159 albertel 1716: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1717: my $result;
1718: if ($target eq "edit") {
1719: $result.= &Apache::edit::tag_end($target,$token,'');
1720: }
1721: return $result;
1.4 tsai 1722: }
1723:
1724: sub start_while {
1.326 albertel 1725: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1726:
1.160 albertel 1727: my $result;
1.339 albertel 1728: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1729: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1730: my $code = $token->[2]->{'condition'};
1.4 tsai 1731:
1.160 albertel 1732: push( @Apache::structuretags::whileconds, $code);
1733: if (!$Apache::lonxml::default_homework_loaded) {
1734: &Apache::lonxml::default_homework_load($safeeval);
1735: }
1736: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1737: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1738: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1739: push( @Apache::structuretags::whileline, $token->[5]);
1740: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1741: if ( $result ) {
1742: &Apache::lonxml::newparser($parser,\$bodytext);
1743: }
1744: } elsif ($target eq 'edit') {
1745: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1746: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1747: $token,40);
1748: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1749: } elsif ($target eq 'modified') {
1750: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1751: $safeeval,'condition');
1752: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1753: }
1.160 albertel 1754: return $result;
1.4 tsai 1755: }
1756:
1757: sub end_while {
1.159 albertel 1758: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1759: my $result;
1760:
1.339 albertel 1761: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1762: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1763: my $code = pop(@Apache::structuretags::whileconds);
1764: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1765: my $line = pop(@Apache::structuretags::whileline);
1766: my $return = &Apache::run::run($code,$safeeval);
1767: my $starttime=time;
1768: my $error=0;
1769: while ($return) {
1770: if (time-$starttime >
1771: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1772: $return = 0; $error=1; next;
1.161 albertel 1773: }
1774: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1775: if ($target eq 'grade' || $target eq 'answer' ||
1776: $target eq 'analyze') {
1777: # grade/answer/analyze should produce no output but if we
1778: # are redirecting, the redirecter should know what to do
1779: # with the output
1780: if (!$Apache::lonxml::redirection) { undef($result); }
1781: }
1.161 albertel 1782: $return = &Apache::run::run($code,$safeeval);
1783: }
1784: if ($error) {
1.430 bisitz 1785: &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 1786: }
1787: } elsif ($target eq "edit") {
1788: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1789: }
1.160 albertel 1790: return $result;
1.1 albertel 1791: }
1.6 tsai 1792:
1.160 albertel 1793: # <randomlist show="1">
1.6 tsai 1794: # <tag1>..</tag1>
1795: # <tag2>..</tag2>
1796: # <tag3>..</tag3>
1.160 albertel 1797: # ...
1.6 tsai 1798: # </randomlist>
1799: sub start_randomlist {
1.326 albertel 1800: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1801: my $result;
1.339 albertel 1802: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1803: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1804: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1805: my $b_parser= HTML::LCParser->new(\$body);
1806: $b_parser->xml_mode(1);
1807: $b_parser->marked_sections(1);
1.159 albertel 1808: my $b_tok;
1809: my @randomlist;
1810: my $list_item;
1811: while($b_tok = $b_parser->get_token() ) {
1812: if($b_tok->[0] eq 'S') { # start tag
1813: # get content of the tag until matching end tag
1814: # get all text upto the matching tag
1815: # and push the content into @randomlist
1816: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1817: $b_parser);
1818: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1819: push(@randomlist,$list_item);
1820: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1821: # $list_item</b>";
1822: }
1823: if($b_tok->[0] eq 'T') { # text
1824: # what to do with text in between tags?
1825: # print "<b>TEXT $b_tok->[1]</b><br />";
1826: }
1827: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1828: # print "<b>END-TAG $b_tok->[1]</b><br />";
1829: # }
1830: }
1.303 albertel 1831: if (@randomlist) {
1832: my @idx_arr = (0 .. $#randomlist);
1833: &Apache::structuretags::shuffle(\@idx_arr);
1834: my $bodytext = '';
1835: my $show=$#randomlist;
1836: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1837: $showarg--;
1838: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 1839: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
1840: my @currlist;
1841: my $part = $Apache::inputtags::part;
1842: if ($part ne '') {
1843: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
1844: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
1845: if (!(grep(/^\Q$part\E$/,@currlist))) {
1846: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1847: }
1848: } else {
1849: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1850: }
1851: }
1852: }
1.303 albertel 1853: for(0 .. $show) {
1854: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1855: }
1856: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1857: }
1858: } elsif ($target eq 'edit' ) {
1859: $result .=&Apache::edit::tag_start($target,$token);
1860: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1861: $token,5);
1862: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1863: } elsif ($target eq 'modified' ) {
1864: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1865: $safeeval,'show');
1866: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1867: }
1868: return $result;
1.7 tsai 1869: }
1870:
1871: sub shuffle {
1872: my $a=shift;
1873: my $i;
1.303 albertel 1874: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1875: &Apache::response::pushrandomnumber();
1.159 albertel 1876: for($i=@$a;--$i;) {
1877: my $j=int(&Math::Random::random_uniform() * ($i+1));
1878: next if $i == $j;
1879: @$a[$i,$j] = @$a[$j,$i];
1880: }
1.251 albertel 1881: &Apache::response::poprandomnumber();
1.7 tsai 1882: }
1.6 tsai 1883: }
1884:
1885: sub end_randomlist {
1.159 albertel 1886: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1887: my $result;
1888: if ($target eq 'edit' ) {
1889: $result=&Apache::edit::tag_end($target,$token,
1890: 'End Randomly Parsed Block');
1891: }
1892: return $result;
1.6 tsai 1893: }
1894:
1.283 albertel 1895: sub ordered_show_check {
1896: my $last_part=$Apache::inputtags::partlist[-2];
1897: my $in_order=
1898: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1899: my $in_order_show=1;
1900: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1901: $in_order_show=&Apache::response::check_status($last_part);
1902: }
1903: return $in_order_show;
1904: }
1905:
1.469 www 1906:
1907: sub start_startpartmarker {
1908: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1909: my $result='';
1910: if ($target eq 'edit') {
1911: $result=&Apache::edit::tag_start($target,$token);
1912: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
1913: $result.=&Apache::edit::end_table();
1914:
1915: }
1916: return $result;
1917: }
1918:
1919: sub end_startpartmarker {
1920: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1921: my @result;
1922: if ($target eq 'edit') { $result[1]='no'; }
1923: return @result;
1924: }
1925:
1926: sub start_endpartmarker {
1927: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1928: my $result='';
1929: if ($target eq 'edit') {
1930: $result=&Apache::edit::tag_start($target,$token);
1931: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
1932: $result.=&Apache::edit::end_table();
1933:
1934: }
1935: return $result;
1936: }
1937:
1938: sub end_endpartmarker {
1939: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1940: my @result;
1941: if ($target eq 'edit') { $result[1]='no'; }
1942: return @result;
1943: }
1944:
1945:
1946:
1947:
1948:
1.11 albertel 1949: sub start_part {
1.326 albertel 1950: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1951: if (!$Apache::lonxml::metamode) {
1952: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1953: # duedates.
1954: }
1.159 albertel 1955: my $result='';
1.386 albertel 1956: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1957: $Apache::inputtags::part=$id;
1.177 albertel 1958: push(@Apache::inputtags::partlist,$id);
1959: @Apache::inputtags::response=();
1.159 albertel 1960: @Apache::inputtags::previous=();
1961: @Apache::inputtags::previous_version=();
1.405 albertel 1962: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 1963: &Apache::response::reset_params();
1964:
1.159 albertel 1965: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1966: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1967: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1968: my $in_order_show=&ordered_show_check();
1.214 albertel 1969: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1970: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1971: &Apache::run::run($expression,$safeeval);
1.159 albertel 1972:
1973: if ($target eq 'meta') {
1.224 www 1974: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1975: return &Apache::response::mandatory_part_meta.
1976: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1977: } elsif ($target eq 'web' || $target eq 'grade' ||
1978: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1979: if ($hidden || !$in_order_show) {
1.326 albertel 1980: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1981: } else {
1982: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1983: push (@Apache::inputtags::status,$status);
1984: my $expression='$external::datestatus="'.$status.'";';
1985: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1986: &Apache::run::run($expression,$safeeval);
1.284 albertel 1987: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1988: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1989: }
1.216 albertel 1990: if (( $status eq 'CLOSED' ) ||
1991: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1992: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1993: ( $status eq 'BANNED') ||
1994: ( $status eq 'UNAVAILABLE') ||
1995: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1996: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1997: $style);
1.159 albertel 1998: if ( $target eq "web" ) {
1.211 albertel 1999: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 2000: } elsif ( $target eq 'tex' ) {
1.284 albertel 2001: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 2002: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 2003: } else {
1.211 albertel 2004: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 2005: }
1.159 albertel 2006: }
2007: } else {
2008: if ($target eq 'tex') {
1.284 albertel 2009: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 2010: if ($$tagstack[-2] eq 'td') {
1.388 foxr 2011: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 2012: } else {
2013: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
2014: }
1.195 sakharuk 2015: }
1.159 albertel 2016: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 2017: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 2018: my @allkeys = split /,/,$allkeys;
2019: my $allow_print_points = 0;
2020: foreach my $partial_key (@allkeys) {
1.230 albertel 2021: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 2022: if ($1 ne '0') {$allow_print_points=1;}
2023: }
2024: }
1.275 albertel 2025: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
2026: if (defined($maxtries) && $maxtries < 0) {
2027: $allow_print_points=0;
2028: }
1.302 albertel 2029: if (lc($env{'course.'.$env{'request.course.id'}.
2030: '.disableexampointprint'}) eq 'yes') {
2031: $allow_print_points=0;
2032: }
1.463 foxr 2033: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1.492 christia 2034: $result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
1.463 foxr 2035:
2036: }
1.233 www 2037: } elsif ($target eq 'web') {
1.479 raeburn 2038: if ($status eq 'CAN_ANSWER') {
2039: my $problemstatus = &get_problem_status($Apache::inputtags::part);
2040: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
2041: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
2042: my $num = scalar(@Apache::inputtags::partlist)-1;
2043: if ($probrandomize eq 'randomizetry') {
2044: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
2045: $result .= &randomizetry_part_header($problemstatus,'none',$num);
2046: } else {
2047: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2048: if ($probrandtries ne $reqtries) {
2049: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2050: }
2051: }
2052: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
2053: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
2054: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
2055: }
2056: }
1.475 raeburn 2057: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 2058: }
2059: }
2060: }
2061: } elsif ($target eq 'edit') {
2062: $result.=&Apache::edit::tag_start($target,$token);
2063: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2064: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2065: ' '.
2066: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2067: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2068: } elsif ($target eq 'modified') {
2069: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2070: $safeeval,'id','display');
1.159 albertel 2071: if ($constructtag) {
1.225 albertel 2072: #limiting ids to only letters numbers, and space
1.224 www 2073: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2074: $result = &Apache::edit::rebuild_tag($token);
2075: }
2076: }
2077: return $result;
1.11 albertel 2078: }
2079:
2080: sub end_part {
1.159 albertel 2081: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2082: &Apache::lonxml::debug("in end_part $target ");
2083: my $status=$Apache::inputtags::status['-1'];
2084: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2085: my $in_order_show=&ordered_show_check();
1.321 albertel 2086: my $result;
2087: if (!$Apache::lonxml::metamode) {
2088: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2089: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2090: }
1.312 albertel 2091: if ($target eq 'grade') {
1.249 albertel 2092: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2093: !$hidden && $in_order_show) {
1.311 foxr 2094: $result.=&Apache::inputtags::grade;
1.249 albertel 2095: } else {
2096: # move any submission data to .hidden
2097: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2098: }
1.283 albertel 2099: } elsif (($target eq 'web' || $target eq 'tex') &&
2100: !$hidden && $in_order_show) {
1.159 albertel 2101: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2102: $target);
1.490 raeburn 2103: if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
2104: ($env{'form.grade_imsexport'})) {
1.212 albertel 2105: $gradestatus='';
2106: }
1.311 foxr 2107: $result.=$gradestatus;
1.265 sakharuk 2108: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2109: } elsif ($target eq 'edit') {
1.311 foxr 2110: $result.=&Apache::edit::end_table();
1.322 albertel 2111: } elsif ($target eq 'modified') {
2112: $result .= $token->[2];
1.159 albertel 2113: }
2114: pop @Apache::inputtags::status;
2115: $Apache::inputtags::part='';
1.295 albertel 2116: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2117: return $result;
1.11 albertel 2118: }
1.1 albertel 2119:
1.25 albertel 2120: sub start_preduedate {
1.326 albertel 2121: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2122: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2123: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2124: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2125: if (!$Apache::lonhomework::scantronmode &&
2126: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2127: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2128: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2129: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2130: }
1.24 albertel 2131: }
1.159 albertel 2132: return '';
1.24 albertel 2133: }
2134:
1.25 albertel 2135: sub end_preduedate {
1.159 albertel 2136: return '';
1.24 albertel 2137: }
2138:
1.369 foxr 2139: # In all the modes where <postanswerdate> text is
2140: # displayable, all we do is eat up the text between the start/stop
2141: # tags if the conditions are not right to display it.
1.25 albertel 2142: sub start_postanswerdate {
1.326 albertel 2143: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2144: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2145: &Apache::lonnet::allowed('pav',
2146: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2147: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2148: $target eq 'tex' ) {
1.300 albertel 2149: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2150: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2151: (($target eq 'tex') && !$pav)) {
1.326 albertel 2152: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2153: }
2154: }
2155: return '';
1.24 albertel 2156: }
2157:
1.25 albertel 2158: sub end_postanswerdate {
1.159 albertel 2159: return '';
1.24 albertel 2160: }
2161:
1.25 albertel 2162: sub start_notsolved {
1.326 albertel 2163: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2164: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2165: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2166: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2167: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2168: if ($gradestatus =~ /^correct/ &&
2169: &Apache::response::show_answer()) {
1.159 albertel 2170: &Apache::lonxml::debug("skipping");
1.326 albertel 2171: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2172: }
1.24 albertel 2173: }
1.159 albertel 2174: return '';
1.24 albertel 2175: }
2176:
1.25 albertel 2177: sub end_notsolved {
1.159 albertel 2178: return '';
1.24 albertel 2179: }
2180:
2181: sub start_solved {
1.326 albertel 2182: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2183: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2184: $target eq 'tex') {
2185: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2186: if ($gradestatus !~ /^correct/ ||
2187: !&Apache::response::show_answer()) {
1.326 albertel 2188: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2189: }
1.24 albertel 2190: }
1.159 albertel 2191: return '';
1.24 albertel 2192: }
2193:
2194: sub end_solved {
1.248 albertel 2195: return '';
2196: }
2197:
2198: sub start_problemtype {
1.326 albertel 2199: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2200: my $result;
1.339 albertel 2201: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2202: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2203: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2204: if (!defined($mode)) { $mode='show'; }
2205: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2206: my $found=0;
2207: foreach my $type (split(',',$for)) {
2208: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2209: }
2210: if ($mode eq 'show' && !$found) {
1.326 albertel 2211: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2212: }
2213: if ($mode eq 'hide' && $found) {
1.326 albertel 2214: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2215: }
2216: } elsif ($target eq 'edit') {
2217: $result .=&Apache::edit::tag_start($target,$token);
2218: $result.=&Apache::edit::select_arg('Mode:','mode',
2219: [['show','Show'],
2220: ['hide','Hide']]
2221: ,$token);
2222: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
2223: [ ['exam','Exam/Quiz Problem'],
2224: ['survey','Survey'],
1.465 raeburn 2225: ['surveycred','Survey (with credit)'],
2226: ['anonsurvey','Anonymous Survey'],
2227: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2228: ['problem','Homework Problem'],
1.479 raeburn 2229: ['practice','Practice Problem'],
2230: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2231: ,$token);
2232: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2233: } elsif ($target eq 'modified') {
2234: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2235: $safeeval,'mode','for');
2236: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2237: }
2238: return $result;
2239: }
2240:
2241: sub end_problemtype {
1.159 albertel 2242: return '';
1.24 albertel 2243: }
1.34 albertel 2244:
2245: sub start_startouttext {
1.159 albertel 2246: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2247: my @result=(''.'');
2248: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2249:
2250: my $nesting =
2251: &Apache::lonxml::set_state('outtext',
2252: &Apache::lonxml::get_state('outtext')+1);
2253: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2254: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2255: }
1.159 albertel 2256: return (@result);
1.34 albertel 2257: }
1.159 albertel 2258:
1.34 albertel 2259: sub end_startouttext {
1.326 albertel 2260: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2261: my $result='';
2262: my $text='';
2263: if ($target eq 'edit') {
1.424 foxr 2264: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2265: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 2266: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 2267: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2268: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 2269: .'</span></td>'
2270: .'<td align="left"><span id="math_'.$areaid.'" />'
2271: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
2272: .'<span></td>'
2273: .'<td>'
2274: .&Apache::edit::insertlist($target,$token)
2275: .'</td>'
2276: .'<td align="right" valign="top">' .
2277: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2278: &Apache::edit::end_row().
1.362 albertel 2279: &Apache::edit::start_spanning_row()."\n".
1.255 www 2280: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2281: }
2282: if ($target eq 'modified') {
1.219 albertel 2283: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2284: }
2285: if ($target eq 'tex') {
2286: $result .= '\noindent ';
2287: }
2288: return $result;
1.34 albertel 2289: }
1.159 albertel 2290:
1.34 albertel 2291: sub start_endouttext {
1.159 albertel 2292: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2293: my $result='';
2294: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2295: if ($target eq "modified") {
2296: $result='<endouttext />'.
1.377 albertel 2297: &Apache::edit::handle_insertafter('startouttext');
2298: }
1.404 albertel 2299:
2300: my $nesting =
2301: &Apache::lonxml::set_state('outtext',
2302: &Apache::lonxml::get_state('outtext')-1);
2303: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2304: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2305: &Apache::lonxml::set_state('outtext', 0);
2306: }
1.159 albertel 2307: return $result;
1.34 albertel 2308: }
1.159 albertel 2309:
1.34 albertel 2310: sub end_endouttext {
1.159 albertel 2311: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2312: my @result=('','');
2313: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2314: return (@result);
1.34 albertel 2315: }
1.159 albertel 2316:
1.45 albertel 2317: sub delete_startouttext {
1.326 albertel 2318: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2319: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2320: my $text=$$parser['-1']->get_text("/endouttext");
2321: my $ntoken=$$parser['-1']->get_token();
2322: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2323: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2324: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2325: # they did the last time round
2326: &Apache::lonxml::increasedepth($ntoken);
2327: &Apache::lonxml::decreasedepth($ntoken);
2328: return 1;
1.193 www 2329: }
2330:
2331: sub start_simpleeditbutton {
2332: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2333: my $result='';
1.284 albertel 2334: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2335: ($target eq 'web') &&
1.330 albertel 2336: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2337: my $url=$env{'request.noversionuri'};
1.193 www 2338: $url=~s/\?.*$//;
1.367 albertel 2339: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 2340: # Warning makes more sense and is more important on edit screen
1.442 bisitz 2341: # $result='<p class="LC_warning">'
2342: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2343: # .&Apache::loncommon::help_open_topic('Caching')
2344: # .'</p>';
1.486 www 2345: $result.=&Apache::loncommon::head_subbox(
2346: &Apache::lonhtmlcommon::start_funclist()
1.451 bisitz 2347: .&Apache::lonhtmlcommon::add_item_funclist(
2348: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
2349: .&mt('Edit').'</a>')
1.486 www 2350: .&Apache::lonhtmlcommon::end_funclist());
1.442 bisitz 2351:
1.193 www 2352: }
2353: return $result;
2354: }
2355:
2356: sub end_simpleeditbutton {
2357: return '';
1.45 albertel 2358: }
1.34 albertel 2359:
1.428 raeburn 2360: sub practice_problem_header {
2361: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2362: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2363: '</span>';
2364: }
2365:
1.479 raeburn 2366: sub randomizetry_problem_header {
2367: my ($problemstatus,$reqtries) = @_;
2368: my ($header,$text);
2369: if ($reqtries > 1) {
2370: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
2371: if (($problemstatus eq 'no') ||
2372: ($problemstatus eq 'no_feedback_ever')) {
2373: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2374: } else {
2375: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2376: }
2377: } else {
2378: $header = &mt('New Problem Variation Each Try');
2379: if (($problemstatus eq 'no') ||
2380: ($problemstatus eq 'no_feedback_ever')) {
2381: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
2382:
2383: } else {
2384: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
2385: }
2386: }
2387: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
2388: '<span class="LC_info">'.$text.'</span><hr />';
2389: }
2390:
2391: sub randomizetry_part_header {
2392: my ($problemstatus,$reqtries,$num) = @_;
2393: my ($header,$text);
2394: if ($reqtries eq 'none') {
2395: $header = &mt('No Question Variation');
2396: $text = &mt('For this question there will no new variation after a try.');
2397: } elsif ($reqtries > 1) {
2398: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
2399: if (($problemstatus eq 'no') ||
2400: ($problemstatus eq 'no_feedback_ever')) {
2401: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2402: } else {
2403: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2404: }
2405: } else {
2406: $header = &mt('New Question Variation For Each Try');
2407: if (($problemstatus eq 'no') ||
2408: ($problemstatus eq 'no_feedback_ever')) {
2409: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
2410: } else {
2411: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
2412: }
2413: }
2414: my $output;
2415: if ($num > 1) {
2416: $output .= '<hr />';
2417: }
2418: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
2419: '<span class="LC_info">'.$text.'</span><br /><br />';
2420: return $output;
2421: }
2422:
1.1 albertel 2423: 1;
2424: __END__
1.435 jms 2425:
2426: =pod
2427:
2428: =back
2429:
2430: =cut
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