Annotation of loncom/homework/structuretags.pm, revision 1.484
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.484 ! raeburn 4: # $Id: structuretags.pm,v 1.483 2010/12/31 02:40:14 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[
1.400 albertel 132: function setSubmittedPart (part) {
133: this.document.lonhomework.submitted.value="part_"+part;
134: }
135:
136: function image_response_click (which, e) {
137: init_geometry();
138: if (!e) { e = window.event; } //IE
139: var input_element = document.lonhomework.elements[which];
1.401 albertel 140: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 141: var token = token_element.value;
1.401 albertel 142: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 143: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
144: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
145: var click = x+':'+y;
146: input_element.value = click;
1.483 raeburn 147: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
1.400 albertel 148: }
1.483 raeburn 149: // ]]>
1.400 albertel 150: </script>
151: JS
152: }
153:
1.416 raeburn 154: sub setmode_javascript {
155: return <<"ENDSCRIPT";
156: <script type="text/javascript">
157: function setmode(form,probmode) {
158: form.problemmode.value = probmode;
159: form.submit();
160: }
161: </script>
162: ENDSCRIPT
163: }
164:
1.478 raeburn 165: sub file_delchk_js {
1.484 ! raeburn 166: my $delfilewarn = &mt('You have indicated you wish to remove some files previously included in your submission.').'\\n'.
! 167: &mt('Continue submission with these files removed?');
1.478 raeburn 168: return <<"ENDSCRIPT";
169: <script type="text/javascript">
1.483 raeburn 170: // <![CDATA[
1.478 raeburn 171: function file_deletion_check(formname) {
172: var elemnum = formname.elements.length;
173: if (elemnum == 0) {
174: return true;
175: }
1.482 raeburn 176: var str = new RegExp("^HWFILE.+_delete\$");
177: var delboxes = new Array();
178: for (var i=0; i<formname.elements.length; i++) {
1.478 raeburn 179: var id = formname.elements[i].id;
180: if (id != '') {
181: if (str.test(id)) {
182: if (formname.elements[i].type == 'checkbox') {
183: if (formname.elements[i].checked) {
1.482 raeburn 184: delboxes.push(id);
1.478 raeburn 185: }
186: }
187: }
188: }
189: }
1.482 raeburn 190: if (delboxes.length > 0) {
1.478 raeburn 191: if (confirm("$delfilewarn")) {
192: return true;
193: } else {
1.482 raeburn 194: for (var j=0; j<delboxes.length; j++) {
195: formname.elements[delboxes[j]].checked = false;
196: }
1.478 raeburn 197: return false;
198: }
199: } else {
200: return true;
201: }
202: }
1.483 raeburn 203: // ]]>
1.478 raeburn 204: </script>
205: ENDSCRIPT
206: }
207:
1.48 albertel 208: sub page_start {
1.345 albertel 209: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
210: $extra_head)=@_;
1.159 albertel 211: my %found;
1.207 albertel 212: foreach my $taginside (@$tagstack) {
1.159 albertel 213: foreach my $taglookedfor ('html','body','form') {
214: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
215: }
216: }
217:
1.343 albertel 218: if ($target eq 'tex') {
219: return
220: &Apache::londefdef::start_html($target,$token,$tagstack,
221: $parstack,$parser,$safeeval);
222: }
223:
1.474 raeburn 224: $extra_head .= &homework_js().
225: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
226: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
227: my %textarea_args = (
228: dragmath => 'math',
229: );
230: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 231: }
1.478 raeburn 232: my $is_task = ($env{'request.uri'} =~ /\.task$/);
233: if ($is_task) {
234: $extra_head .= &file_delchk_js();
235: }
1.425 raeburn 236:
1.344 albertel 237: my %body_args;
238: if (defined($found{'html'})) {
239: $body_args{'skip_phases'}{'head'}=1;
240: } else {
1.343 albertel 241:
1.345 albertel 242: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 243:
1.379 albertel 244: $extra_head .= &Apache::londefdef::generate_css_links();
245:
1.384 albertel 246: if ($env{'request.state'} eq 'construct') {
1.343 albertel 247: $extra_head.=&Apache::edit::js_change_detection().
248: "<script type=\"text/javascript\">\n".
249: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
250: &Apache::loncommon::browser_and_searcher_javascript().
251: "\n</script>\n";
252: }
1.159 albertel 253: }
1.343 albertel 254:
1.446 bisitz 255: my $pageheader = '';
1.344 albertel 256: if (defined($found{'body'})) {
257: $body_args{'skip_phases'}{'body'}=1;
258: } elsif (!defined($found{'body'})
259: && $env{'request.state'} eq 'construct') {
1.343 albertel 260: if ($target eq 'web' || $target eq 'edit') {
1.450 bisitz 261: # Breadcrumbs for Construction Space
262: &Apache::lonhtmlcommon::clear_breadcrumbs();
263: &Apache::lonhtmlcommon::add_breadcrumb({
264: 'text' => 'Construction Space',
265: 'href' => &Apache::loncommon::authorspace(),
266: });
1.460 droeschl 267: # breadcrumbs (and tools) will be created
268: # in start_page->bodytag->innerregister
269:
1.450 bisitz 270: # FIXME Where are we?
271: # &Apache::lonhtmlcommon::add_breadcrumb({
272: # 'text' => 'Problem Editing', # 'Problem Testing'
273: # 'href' => '',
274: # });
1.460 droeschl 275: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 276: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 277: }
1.272 albertel 278: } elsif (!defined($found{'body'})) {
1.343 albertel 279: my %add_entries;
1.159 albertel 280: my $background=&Apache::lonxml::get_param('background',$parstack,
281: $safeeval);
1.343 albertel 282: if ($background ne '' ) {
283: $add_entries{'background'} = $background;
284: }
1.344 albertel 285:
1.290 albertel 286: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
287: $safeeval);
1.446 bisitz 288: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 289:
1.446 bisitz 290: $body_args{'bgcolor'} = $bgcolor;
291: # $body_args{'no_title'} = 1;
292: $body_args{'force_register'} = 1;
293: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 294: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 295: $body_args{'only_body'} = 1;
296: }
1.344 albertel 297: }
1.365 albertel 298: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 299: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
300: \%body_args);
1.446 bisitz 301: $page_start .= $pageheader;
1.462 raeburn 302: if (!defined($found{'body'})
303: && $env{'request.state'} ne 'construct'
304: && ($target eq 'web' || $target eq 'webgrade')) {
305:
306: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
307: if ($symb eq '' && !$publicuser) {
308: $page_start .= '<p class="LC_info">'
309: .&mt('Browsing resource, all submissions are temporary.')
310: .'</p>';
1.457 bisitz 311: }
1.344 albertel 312: }
313:
1.409 albertel 314: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 315: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 316: }
1.344 albertel 317:
1.159 albertel 318: my $form_tag_start;
319: if (!defined($found{'form'})) {
1.337 albertel 320: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 321: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 322: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 323: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 324: $form_tag_start.=$uri.'" ';
325: if ($target eq 'edit') {
326: $form_tag_start.=&Apache::edit::form_change_detection();
327: }
1.478 raeburn 328: if ($is_task) {
329: $form_tag_start .= ' onsubmit="return file_deletion_check(this);"';
330: }
1.368 albertel 331: $form_tag_start.='>'."\n";
1.355 albertel 332:
333: my $symb=&Apache::lonnet::symbread();
334: if ($symb =~ /\S/) {
335: $symb=
336: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
337: $form_tag_start.=
1.368 albertel 338: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 339: }
1.159 albertel 340: }
1.343 albertel 341: return ($page_start,$form_tag_start);
1.105 albertel 342: }
343:
1.141 matthew 344: #use Time::HiRes();
1.105 albertel 345: sub get_resource_name {
1.159 albertel 346: my ($parstack,$safeeval)=@_;
1.388 foxr 347: my $name;
1.204 albertel 348: if (defined($Apache::lonhomework::name)) {
1.388 foxr 349: $name = $Apache::lonhomework::name;
350: } else {
351: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 352: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 353: if ($name eq '') {
354: $name=&Apache::lonnet::EXT('resource.title');
355: if ($name eq 'con_lost') { $name = ''; }
356: }
357: if ($name!~/\S+/) {
358: $name=$env{'request.uri'};
359: $name=~s-.*/([^/]+)$-$1-;
360: }
361: # The name has had html tags escaped:
362:
363: $name=~s/</</gs;
364: $name=~s/>/>/gs;
365:
366: $Apache::lonhomework::name=$name;
1.204 albertel 367: }
1.159 albertel 368: return $name;
1.105 albertel 369: }
370:
371: sub setup_rndseed {
1.479 raeburn 372: my ($safeeval,$target)=@_;
1.367 albertel 373: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 374: my ($questiontype,$set_safespace,$rndseed);
375: if ($target eq 'analyze') {
376: $questiontype = $env{'form.grade_questiontype'};
377: }
378: unless (defined($questiontype)) {
379: $questiontype = $Apache::lonhomework::type;
380: }
1.333 albertel 381: if ($env{'request.state'} eq "construct"
382: || $symb eq ''
383: || $Apache::lonhomework::type eq 'practice'
384: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 385: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 386: ['rndseed']);
1.284 albertel 387: $rndseed=$env{'form.rndseed'};
1.159 albertel 388: if (!$rndseed) {
1.162 albertel 389: $rndseed=$Apache::lonhomework::history{'rndseed'};
390: if (!$rndseed) {
391: $rndseed=time;
392: }
1.284 albertel 393: $env{'form.rndseed'}=$rndseed;
1.162 albertel 394: }
1.479 raeburn 395: if (($env{'request.state'} eq "construct") &&
396: ($Apache::lonhomework::type eq 'randomizetry')) {
397: my $tries = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
398: if ($tries) {
399: $rndseed += $tries;
400: }
1.480 raeburn 401: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 402: }
1.374 albertel 403: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
404: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 405: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 406: srand(time);
407: $rndseed=int(rand(2100000000));
1.284 albertel 408: $env{'form.rndseed'}=$rndseed;
409: delete($env{'form.resetdata'});
410: delete($env{'form.newrandomization'});
1.159 albertel 411: }
1.187 albertel 412: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 413: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 414: }
1.247 albertel 415: if ($Apache::lonhomework::history{'resource.CODE'}) {
416: $rndseed=&Apache::lonnet::rndseed();
417: }
1.479 raeburn 418: $set_safespace = 1;
419: } elsif ($questiontype eq 'randomizetry') {
420: if ($target eq 'analyze') {
421: if (defined($env{'form.grade_rndseed'})) {
422: $rndseed = $env{'form.grade_rndseed'};
423: }
424: }
425: unless (($target eq 'analyze') && (defined($rndseed))) {
426: $rndseed=&Apache::lonnet::rndseed();
427: my $curr_try = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
428: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
429: $curr_try ++;
430: }
431: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
432: $rndseed = $1;
433: }
434: if ($curr_try) {
435: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
436: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
437: my $inc = int(($curr_try-1)/$reqtries);
438: $rndseed += $inc;
439: } else {
440: $rndseed += $curr_try;
441: }
442: }
443: }
444: $set_safespace = 1;
445: }
446: if ($set_safespace) {
447: if ($safeeval) {
448: &Apache::lonxml::debug("Setting rndseed to $rndseed");
449: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
450: }
451: }
452: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
453: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 454: }
455: return $rndseed;
1.105 albertel 456: }
457:
1.268 albertel 458: sub remember_problem_state {
459: return '
1.284 albertel 460: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
461: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
462: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 463: }
464:
1.423 www 465: sub problem_edit_buttons {
466: return '
1.408 albertel 467: <div class="LC_edit_problem_discards">
1.416 raeburn 468: <input type="button" name="submitmode" accesskey="d" value="'.&mt('Discard Edits and View').'" '.
1.423 www 469: ' onclick="javscript:setmode(this.form,'."'discard'".')" />
1.416 raeburn 470: <input '.&Apache::edit::submit_ask_anyway('setmode(this.form,'."'editxml'".')').' type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" />
1.407 albertel 471: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
1.408 albertel 472: </div>
473: <div class="LC_edit_problem_saves">
1.416 raeburn 474: <input type="submit" name="submitbutton" accesskey="s" value="'.&mt('Save and Edit').'" />
475: <input type="submit" name="submitbutton" accesskey="v" value="'.&mt('Save and View').'" />
1.423 www 476: </div>';
477: }
478:
479: sub problem_edit_header {
480: return '<input type="hidden" name="submitted" value="edit" /><input type="hidden" name="problemmode" value="edit" />'.
481: &Apache::structuretags::remember_problem_state().'
482: <div class="LC_edit_problem_header">
483: <div class="LC_edit_problem_header_title">
484: '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
485: </div>'.
486: &problem_edit_buttons().'
1.459 bisitz 487: <hr style="clear:both;" />
1.409 albertel 488: '.&Apache::lonxml::message_location().'
1.408 albertel 489: </div>
490: '.
1.458 bisitz 491: '<table border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
1.105 albertel 492: }
493:
494: sub problem_edit_footer {
1.412 albertel 495: return '</td></tr></table><br />
496: <div class="LC_edit_problem_footer">
1.453 bisitz 497: <hr />'.
1.423 www 498: &problem_edit_buttons().'
1.459 bisitz 499: <hr style="clear:both;" />
1.412 albertel 500: </div>
501: '.
1.342 albertel 502: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 503: }
504:
1.235 albertel 505: sub option {
506: my ($value,$name) = @_;
507: my $result ="<option value='".$value."' ";
1.284 albertel 508: if ($env{'form.'.$name} eq $value) {
1.235 albertel 509: $result.=" selected='on' ";
510: }
511: $result.='>';
512: return $result;
513: }
514:
1.105 albertel 515: sub problem_web_to_edit_header {
1.159 albertel 516: my ($rndseed)=@_;
1.406 albertel 517: my $result .= '<div class="LC_edit_problem_header">';
518:
519: if (!$Apache::lonhomework::parsing_a_task) {
520: $result .=
521: '<div class="LC_edit_problem_header_title">'.
522: &mt('Problem Testing').
523: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
524: '</div>';
525: } else {
526: $result .=
527: '<div class="LC_edit_problem_header_title">'.
528: &mt('Task Testing').
529: '</div>';
530: }
531:
1.315 albertel 532: my $show_all_foils_text =
533: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 534: &mt('Show All Instances')
535: : &mt('Show All Foils');
1.315 albertel 536:
1.452 bisitz 537: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
538: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 539: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 540: $show_all.= ' /> '.$show_all_foils_text
541: .'</label></span>';
1.406 albertel 542:
543:
1.384 albertel 544:
1.406 albertel 545: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 546: if (!$Apache::lonhomework::parsing_a_task) {
547: $result.="
1.406 albertel 548: <div class='LC_edit_problem_header_row1'>
549: <span class=\"LC_nobreak\">
1.405 albertel 550: ".&mt("Problem Status:")."
1.235 albertel 551: <select name='problemstate'>
1.270 albertel 552: <option value=''></option>
1.235 albertel 553: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
554: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
555: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
556: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
557: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
558: </select>
1.406 albertel 559: </span>
560: <span class=\"LC_nobreak\">
1.405 albertel 561: ".&mt("Problem Type:")."
1.235 albertel 562: <select name='problemtype'>
1.270 albertel 563: <option value=''></option>
1.242 albertel 564: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 565: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 566: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 567: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
568: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
569: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 570: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 571: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 572: </select>
1.406 albertel 573: </span>
574: $show_all
575: </div>
576: <div class='LC_edit_problem_header_row2'>
577: <span class=\"LC_nobreak\">
1.405 albertel 578: ".&mt("Feedback Mode:")."
1.235 albertel 579: <select name='problemstatus'>
580: <option value=''></option>
1.242 albertel 581: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.405 albertel 582: ".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
583: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 584: </select>
1.406 albertel 585: </span>
586: ";
587:
1.376 albertel 588: } elsif ($Apache::lonhomework::parsing_a_task) {
589: $result.="
1.406 albertel 590: <div class='LC_edit_problem_header_row1'>
591: <span class=\"LC_nobreak\">
1.405 albertel 592: ".&mt("Problem Status:")."
1.376 albertel 593: <select name='problemstate'>
594: <option value=''></option>
595: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
596: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
597: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
598: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
599: </select>
1.406 albertel 600: </span>
601: $show_all
602: ";
603: }
604: $result.='
605: <span class="LC_nobreak">
606: '.&mt('Apply style file: ').'
607: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
608: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
609: </span>
1.422 www 610: </div>
611: <div class="LC_edit_problem_header_row1">'.
612: &Apache::lonxml::renderingoptions().'
1.406 albertel 613: </div>
614: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
615: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
616: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
617: </div>
1.453 bisitz 618: <hr />
1.406 albertel 619: <div class="LC_edit_problem_header_randomize_row">
620: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
621: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
622: <input type="text" name="rndseed" size="10" value="'.
623: $rndseed.'"
624: onchange="javascript:document.lonhomework.changerandseed.click()" />';
625:
626: if (!$Apache::lonhomework::parsing_a_task) {
627: my $numtoanalyze=$env{'form.numtoanalyze'};
628: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 629: $result .= '<span class="LC_nobreak">'.
630: &mt('[_1] for [_2] versions.',
1.416 raeburn 631: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 632: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
633: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 634: $numtoanalyze.'" size="5" />').
635: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
636: '</span>';
637:
1.313 albertel 638: }
1.406 albertel 639:
640: $result.='
641: </div>
1.453 bisitz 642: <hr />
1.447 bisitz 643: <div>';
1.416 raeburn 644: $result.='<input type="hidden" name="problemmode" value="view" />';
645: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
646: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
647: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
648: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 649: $result.='
650: </div>
1.453 bisitz 651: <hr />
1.409 albertel 652: '.&Apache::lonxml::message_location().'
1.406 albertel 653: </div>';
1.159 albertel 654: return $result;
1.48 albertel 655: }
656:
1.65 albertel 657: sub initialize_storage {
1.357 albertel 658: my ($given_symb) = @_;
1.353 albertel 659: undef(%Apache::lonhomework::results);
660: undef(%Apache::lonhomework::history);
1.357 albertel 661: my ($symb,$courseid,$domain,$name) =
1.367 albertel 662: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 663:
664: # anonymous users (CODEd exams) have no data
665: if ($name eq 'anonymous'
666: && !defined($domain)) {
667: return;
668: }
669:
1.333 albertel 670: if ($env{'request.state'} eq 'construct'
671: || $symb eq ''
672: || $Apache::lonhomework::type eq 'practice') {
673:
674: my $namespace = $symb || $env{'request.uri'};
675: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 676: ($env{'form.resetdata'} eq &mt('New Problem Variation')
677: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 678: $env{'form.newrandomization'} eq &mt('New Randomization')) {
679: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
680: &Apache::lonxml::debug("Attempt reset");
681: }
1.159 albertel 682: %Apache::lonhomework::history=
1.333 albertel 683: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 684: my ($temp)=keys %Apache::lonhomework::history ;
685: &Apache::lonxml::debug("Return message of $temp");
686: } else {
687: %Apache::lonhomework::history=
688: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
689: }
1.353 albertel 690:
1.159 albertel 691: #ignore error conditions
1.67 albertel 692: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 693: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 694: }
695:
1.435 jms 696: =pod
697:
698: =item finalize_storage()
699:
700: Stores away the result has to a student's environment
701: checks form.grade_ for specific values, other wises stores
702: to the running users environment
703: Will increment totals for attempts, students, and corrects
704: if running user has student role.
705:
706: =cut
707:
708:
1.65 albertel 709: sub finalize_storage {
1.357 albertel 710: my ($given_symb) = @_;
1.159 albertel 711: my $result;
1.289 albertel 712: if (%Apache::lonhomework::results) {
1.323 albertel 713: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
714: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 715: my ($symb,$courseid,$domain,$name) =
1.367 albertel 716: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 717: if ($env{'request.state'} eq 'construct'
718: || $symb eq ''
719: || $Apache::lonhomework::type eq 'practice') {
720: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 721: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 722: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 723: $namespace,'',$domain,$name);
1.159 albertel 724: &Apache::lonxml::debug('Construct Store return message:'.$result);
725: } else {
726: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
727: $symb,$courseid,$domain,$name);
728: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 729: &store_aggregates($symb,$courseid);
1.159 albertel 730: }
1.323 albertel 731: } else {
732: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 733: }
1.159 albertel 734: return $result;
1.65 albertel 735: }
736:
1.435 jms 737: =pod
738:
739: item store_aggregates()
740:
741: Sends hash of values to be incremented in nohist_resourcetracker.db
742: for the course. Increments total number of attempts, unique students
743: and corrects for each part for an instance of a problem, as appropriate.
744:
745: =cut
746:
1.285 raeburn 747: sub store_aggregates {
748: my ($symb,$courseid) = @_;
1.479 raeburn 749: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 750: my @parts;
1.288 albertel 751: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
752: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 753: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 754: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 755: push(@parts, $1);
1.285 raeburn 756: }
757: }
1.286 albertel 758: foreach my $part (@parts) {
1.470 raeburn 759: if ($env{'request.role'} =~/^st/) {
760: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
761: eq 'APPROX_ANS' ||
762: $Apache::lonhomework::results{'resource.'.$part.'.award'}
763: eq 'EXACT_ANS') {
764: $aggregate{$symb."\0".$part."\0correct"} = 1;
765: }
766: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
767: $aggregate{$symb."\0".$part."\0users"} = 1;
768: } else {
769: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
770: if ($last_reset) {
771: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
772: $aggregate{$symb."\0".$part."\0users"} = 1;
773: }
774: }
775: }
776: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 777: }
1.470 raeburn 778: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 779: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
780: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
781: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
782: $randtrycounter{$symb."\0".$part} = 1;
783: } else {
784: $anoncounter{$symb."\0".$part} = 1;
785: }
1.470 raeburn 786: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
787: if ($needsrelease) {
788: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
789: if ($curr_required eq '') {
1.471 raeburn 790: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 791: } else {
792: my ($currmajor,$currminor) = split(/\./,$curr_required);
793: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
794: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 795: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 796: }
1.292 raeburn 797: }
798: }
1.285 raeburn 799: }
800: }
1.292 raeburn 801: if (keys (%aggregate) > 0) {
1.289 albertel 802: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 803: $cdomain,$cname);
804: }
1.472 raeburn 805: if (keys(%anoncounter) > 0) {
1.481 raeburn 806: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
807: $cdomain,$cname);
1.472 raeburn 808: }
1.479 raeburn 809: if (keys(%randtrycounter) > 0) {
1.481 raeburn 810: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
811: $cdomain,$cname);
1.479 raeburn 812: }
1.292 raeburn 813: }
1.289 albertel 814:
1.65 albertel 815: sub checkout_msg {
1.211 albertel 816: my %lt=&Apache::lonlocal::texthash(
817: 'resource'=>'The resource needs to be checked out',
818: '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.',
819: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
820: 'checkout'=>'Check out Exam for Viewing',
821: 'checkout?'=>'Check out Exam?');
1.352 albertel 822: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 823: return (<<ENDCHECKOUT);
1.211 albertel 824: <h2>$lt{'resource'}</h2>
825: <p>$lt{'id_expln'}</p>
1.449 bisitz 826: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 827: <form name="checkout" method="post" action="$uri">
1.91 albertel 828: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 829: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 830: </form>
831: ENDCHECKOUT
832: }
833:
1.252 albertel 834: sub firstaccess_msg {
1.253 albertel 835: my ($time,$symb)=@_;
1.414 albertel 836: my $result;
837: my @interval=&Apache::lonnet::EXT("resource.0.interval");
838: if ($interval[1] eq 'map') {
839: my ($map)=&Apache::lonnet::decode_symb($symb);
840: my $foldertitle=&Apache::lonnet::gettitle($map);
841:
842: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.418 bisitz 843: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
844: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
845: ,$foldertitle,$time)."</h2>";
1.414 albertel 846: } elsif ($interval[1] eq 'course') {
847: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.418 bisitz 848: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
849: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
850: ,$course,$time)."</h2>";
1.414 albertel 851: } else {
852: my $title=&Apache::lonnet::gettitle($symb);
1.418 bisitz 853: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.'
854: .' Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
855: ,$title,$time)."</h2>";
1.414 albertel 856: }
1.352 albertel 857: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 858: my $buttontext = &mt('Show Resource');
859: my $timertext = &mt('Start Timer?');
1.414 albertel 860: $result .= (<<ENDCHECKOUT);
1.444 bisitz 861: <form name="markaccess" method="post" action="$uri">
1.252 albertel 862: <input type="hidden" name="markaccess" value="yes" />
1.418 bisitz 863: <input type="button" name="accessbutton" value="$buttontext" onClick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 864: </form>
865: ENDCHECKOUT
1.414 albertel 866: return $result;
1.252 albertel 867: }
868:
1.204 albertel 869: sub init_problem_globals {
870: my ($type)=@_;
871: #initialize globals
1.308 foxr 872: # For problems, we start out in part 0 (outside a <part> tag).
873: # and part 0 is used to describe the main body of the <problem>
874: #
1.204 albertel 875: if ($type eq 'problem') {
876: $Apache::inputtags::part='0';
877: @Apache::inputtags::partlist=('0');
1.405 albertel 878: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 879: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 880:
1.266 albertel 881: } elsif ($type eq 'library') {
1.204 albertel 882: $Apache::inputtags::part='';
883: @Apache::inputtags::partlist=();
1.405 albertel 884: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 885: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 886:
1.304 albertel 887: } elsif ($type eq 'Task') {
888: $Apache::inputtags::part='0';
889: @Apache::inputtags::partlist=('0');
1.405 albertel 890: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 891: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 892: }
1.477 www 893: @Apache::functionplotresponse::callscripts=();
1.204 albertel 894: @Apache::inputtags::responselist = ();
895: @Apache::inputtags::importlist = ();
896: @Apache::inputtags::previous=();
897: @Apache::inputtags::previous_version=();
898: $Apache::structuretags::printanswer='No';
899: @Apache::structuretags::whileconds=();
900: @Apache::structuretags::whilebody=();
901: @Apache::structuretags::whileline=();
902: $Apache::lonhomework::scantronmode=0;
903: undef($Apache::lonhomework::name);
1.358 albertel 904: undef($Apache::lonhomework::default_type);
905: undef($Apache::lonhomework::type);
1.204 albertel 906: }
907:
908: sub reset_problem_globals {
909: my ($type)=@_;
910: undef(%Apache::lonhomework::history);
911: undef(%Apache::lonhomework::results);
912: undef($Apache::inputtags::part);
1.208 albertel 913: #don't undef this, lonhomework.pm takes care of this, we use this to
914: #detect if we try to do 2 problems in one file
915: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 916: undef($Apache::lonhomework::name);
1.358 albertel 917: undef($Apache::lonhomework::default_type);
918: undef($Apache::lonhomework::type);
919: undef($Apache::lonhomework::scantronmode);
920: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 921: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 922: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 923: }
924:
1.241 albertel 925: sub set_problem_state {
1.240 albertel 926: my ($part)=@_;
1.284 albertel 927: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 928: $Apache::lonhomework::history{"resource.$part.solved"}=
929: 'correct_by_student';
930: }
931: }
932:
1.241 albertel 933: sub get_problem_status {
934: my ($part)=@_;
1.267 albertel 935: my $problem_status;
1.284 albertel 936: if ($env{'request.state'} eq 'construct' &&
937: defined($env{'form.problemstatus'})) {
938: $problem_status=$env{'form.problemstatus'};
1.267 albertel 939: } else {
940: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
941: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 942: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 943: }
944: return $problem_status;
945: }
946:
1.9 albertel 947: sub start_problem {
1.326 albertel 948: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 949:
1.311 foxr 950: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 951: if (!$Apache::lonxml::metamode) {
952: &Apache::lonxml::startredirection();
953: }
1.311 foxr 954:
1.308 foxr 955: # Problems don't nest and we don't allow more than one <problem> in
956: # a .problem file.
957: #
1.184 albertel 958: if ( $Apache::inputtags::part ne '' ||
959: $Apache::lonhomework::parsing_a_problem) {
960: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 961: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 962: return '';
963: }
1.184 albertel 964:
965: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 966: &init_problem_globals('problem');
1.166 albertel 967:
1.284 albertel 968: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 969: $Apache::lonhomework::scantronmode=1;
970: }
1.161 albertel 971:
1.159 albertel 972: if ($target ne 'analyze') {
1.415 raeburn 973: my $type = &Apache::lonnet::EXT('resource.0.type');
974: $Apache::lonhomework::type=$type;
1.284 albertel 975: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 976: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 977: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 978: }
1.332 albertel 979: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 980: }
1.164 albertel 981: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 982: my $uri=$env{'request.uri'};
1.159 albertel 983: if ($uri=~/\.(\w+)$/) {
984: $Apache::lonhomework::type=$1;
985: &Apache::lonxml::debug("Using type of $1");
986: } else {
987: $Apache::lonhomework::type='problem';
988: &Apache::lonxml::debug("Using default type, problem, :$uri:");
989: }
1.87 albertel 990: }
1.301 albertel 991: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 992:
1.363 albertel 993: &initialize_storage();
1.389 albertel 994: if ($target ne 'analyze'
995: && $env{'request.state'} eq 'construct') {
996: &set_problem_state('0');
997: }
998:
1.366 albertel 999: if ($target eq 'web') {
1000: &Apache::lonxml::debug(" grading history ");
1001: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1002: }
1.363 albertel 1003:
1.159 albertel 1004: #added vars to the scripting enviroment
1.213 albertel 1005: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1006: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1007: &Apache::run::run($expression,$safeeval);
1.159 albertel 1008: my $status;
1009: my $accessmsg;
1010:
1.343 albertel 1011: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 1012: my ($result,$form_tag_start);
1.354 albertel 1013: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1014: || $target eq 'edit') {
1.350 albertel 1015: ($result,$form_tag_start) =
1016: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1017: $name);
1018: }
1019:
1.284 albertel 1020: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1021:
1.479 raeburn 1022: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1023: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1024: $target eq 'tex') {
1.284 albertel 1025: if ($env{'form.markaccess'}) {
1.414 albertel 1026: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1027: &Apache::lonnet::set_first_access($interval[1]);
1.252 albertel 1028: }
1.479 raeburn 1029:
1030: ($status,$accessmsg,my $slot_name,my $slot) =
1031: &Apache::lonhomework::check_slot_access('0','problem');
1032: push (@Apache::inputtags::status,$status);
1033:
1.159 albertel 1034: #handle rand seed in construction space
1.479 raeburn 1035: my $rndseed=&setup_rndseed($safeeval,$target);
1.367 albertel 1036: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 1037:
1.333 albertel 1038: if ($env{'request.state'} ne "construct" &&
1039: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1040: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1041: $rndseed.'" />'.
1042: '<input type="submit" name="resetdata"
1043: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1044: if (exists($env{'form.username'})) {
1045: $form_tag_start.=
1.164 albertel 1046: '<input type="hidden" name="username"
1.284 albertel 1047: value="'.$env{'form.username'}.'" />';
1.334 albertel 1048: }
1.462 raeburn 1049: if ($env{'request.role.adv'}) {
1050: $form_tag_start.= ' <label class="LC_nobreak">'
1051: .'<input type="checkbox" name="showallfoils"';
1052: if (defined($env{'form.showallfoils'})) {
1053: $form_tag_start.=' checked="checked"';
1054: }
1055: $form_tag_start.= ' /> '
1056: .&mt('Show All Foils')
1057: .'</label>';
1058: }
1.417 www 1059: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1060: $form_tag_start.=&practice_problem_header();
1.417 www 1061: }
1.462 raeburn 1062: $form_tag_start.='<hr />';
1.479 raeburn 1063: } elsif (($env{'request.state'} ne "construct") &&
1064: ($Apache::lonhomework::type eq 'randomizetry') &&
1065: ($status eq 'CAN_ANSWER')) {
1066: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1067: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1068: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1069: }
1.324 albertel 1070:
1.159 albertel 1071: my $expression='$external::datestatus="'.$status.'";';
1072: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1073: &Apache::run::run($expression,$safeeval);
1074: &Apache::lonxml::debug("Got $status");
1.324 albertel 1075:
1.159 albertel 1076: if (( $status eq 'CLOSED' ) ||
1077: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1078: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1079: ( $status eq 'BANNED') ||
1.216 albertel 1080: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1081: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 1082: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1083: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1084: $style);
1.159 albertel 1085: if ( $target eq "web" ) {
1.343 albertel 1086: my $msg;
1.159 albertel 1087: if ($status eq 'UNAVAILABLE') {
1.245 albertel 1088: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.441 raeburn 1089: } elsif ($status eq 'NOT_IN_A_SLOT') {
1090: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.253 albertel 1091: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 1092: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 1093: }
1.216 albertel 1094: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1095: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1096: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1097: $msg.=&checkout_msg();
1.252 albertel 1098: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1099: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1100: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1101: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.159 albertel 1102: }
1103: $result.=$msg.'<br />';
1104: } elsif ($target eq 'tex') {
1.332 albertel 1105: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1106: : '\begin{minipage}{\textwidth}';
1.443 foxr 1107: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1108: $startminipage.'\vskip 0 mm';
1.159 albertel 1109: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1110: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1111: } else {
1.211 albertel 1112: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1113: }
1114: }
1.324 albertel 1115: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1116: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1117: $style);
1.324 albertel 1118: if ($target eq 'web') {
1.375 albertel 1119: $result .=
1120: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1121: } elsif ($target eq 'grade') {
1122: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1123: 'problem');
1124: }
1.159 albertel 1125: } elsif ($target eq 'web') {
1.360 albertel 1126: if ($status eq 'CAN_ANSWER'
1127: && $slot_name ne ''
1128: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
1129: # unproctored slot access, self checkin
1130: &Apache::bridgetask::check_in('problem',undef,undef,
1131: $slot_name);
1132: }
1.368 albertel 1133: $result.="\n $form_tag_start \t".
1.227 albertel 1134: '<input type="hidden" name="submitted" value="yes" />';
1135: # create a page header and exit
1.284 albertel 1136: if ($env{'request.state'} eq "construct") {
1137: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1138: if ($Apache::lonhomework::type eq 'practice') {
1139: $result.= '<input type="submit" name="resetdata" '.
1140: 'value="'.&mt('New Problem Variation').'" />'.
1141: &practice_problem_header().'<hr />';
1142: }
1.227 albertel 1143: }
1144: # if we are viewing someone else preserve that info
1.284 albertel 1145: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1146: foreach my $field ('symb','courseid','domain','username') {
1147: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1148: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1149: }
1.479 raeburn 1150: foreach my $field ('trial','questiontype') {
1151: if ($env{"form.grade_$field"} ne '') {
1152: $result .= '<input type="hidden" name="grade_'.$field.
1153: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1154: }
1155: }
1.159 albertel 1156: }
1157: } elsif ($target eq 'tex') {
1.319 foxr 1158: $result .= 'INSERTTEXFRONTMATTERHERE';
1159:
1.99 sakharuk 1160: }
1.159 albertel 1161: } elsif ($target eq 'edit') {
1.343 albertel 1162: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1163: $Apache::lonxml::warnings_error_header=
1164: &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 1165: my $temp=&Apache::edit::insertlist($target,$token);
1166: $result.=$temp;
1167: } elsif ($target eq 'modified') {
1168: $result=$token->[4];
1169: } else {
1170: # page_start returned a starting result, delete it if we don't need it
1171: $result = '';
1.99 sakharuk 1172: }
1.159 albertel 1173: return $result;
1.9 albertel 1174: }
1175:
1176: sub end_problem {
1.159 albertel 1177: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1178: my $result;
1.310 foxr 1179:
1.321 albertel 1180: if (!$Apache::lonxml::metamode) {
1181: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1182: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1183: }
1.319 foxr 1184:
1185: if ($target eq 'tex') {
1.321 albertel 1186: # Figure out the front matter and replace the
1187: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1188: # this in end_problem because whether or not we display due
1189: # dates depends on whether due dates have already been
1190: # displayed in the problem parts.
1191:
1.319 foxr 1192: my $frontmatter = '';
1193: my $startminipage = '';
1194: if (not $env{'form.problem_split'}=~/yes/) {
1195: $startminipage = '\begin{minipage}{\textwidth}';
1196: }
1197: my $id = $Apache::inputtags::part;
1198: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1199: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1200: my @packages = split /,/,$packages;
1201: my $allow_print_points = 0;
1202: foreach my $partial_key (@packages) {
1203: if ($partial_key=~m/^part_0$/) {
1204: $allow_print_points=1;
1205: }
1206: }
1207: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1208: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1209: if (lc($env{'course.'.$env{'request.course.id'}.
1210: '.disableexampointprint'}) eq 'yes') {
1211: $allow_print_points=0;
1212: }
1213: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1214: 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 1215: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1216: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1217:
1218: # Figure out what the due date is and if we need to print
1219: # it in the problem header. We have been logging the
1220: # last due date written to file.
1221:
1222: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1223: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1224: my $duedate_text = &mt('Due date: [_1]'
1225: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1226: my $temp_file;
1227: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1228:
1229: # Figure out what the last printed due date is or set it
1230: # to the epoch if no duedates have been printed.
1231:
1232: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1233: if (-e $filename) {
1234: $temp_file = Apache::File->new($filename);
1235: my @due_file = <$temp_file>;
1236: $due_file_content = $due_file[$#due_file];
1237: chomp $due_file_content;
1238: }
1239:
1240: # We display the due date iff it is not the same as the last
1241: # duedate in problem header ($due_file_content), and
1242: # none of our parts displayed a duedate.
1243: #
1244: my $parts_with_displayduedate;
1245: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1246: $parts_with_displayduedate =
1247: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1248: } else {
1249: $parts_with_displayduedate = 0;
1250: }
1251: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1252: $temp_file = Apache::File->new('>'.$filename);
1253: print $temp_file "$duetime\n";
1254: if (not $env{'request.symb'} =~ m/\.page_/) {
1255: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1256: $frontmatter .= $begin_doc.
1.448 bisitz 1257: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1258: } else {
1259: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1260: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1261: $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
1262: }
1.319 foxr 1263: }
1264: } else {
1.448 bisitz 1265: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1266: }
1267: } else {
1268: if (not $env{'request.symb'} =~ m/\.page_/) {
1269: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1270: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1271: $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
1272: }
1.319 foxr 1273: } else {
1.381 albertel 1274: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1275: }
1276: }
1277: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1278: }
1279:
1.159 albertel 1280: my $status=$Apache::inputtags::status['-1'];
1281: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1282: $target eq 'tex') {
1.249 albertel 1283: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1284: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1285: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1286: &Apache::inputtags::grade;
1.324 albertel 1287: } elsif ($status eq 'NEEDS_CHECKIN') {
1288: # no need to grade, and don't want to hide data
1.249 albertel 1289: } else {
1290: # move any submission data to .hidden
1291: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1292: }
1.159 albertel 1293: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1294: $Apache::inputtags::part eq '0' &&
1.252 albertel 1295: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 1296: # if part is zero, no <part>s existed, so we need show the current
1297: # grading status
1298: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1299: $result.= $gradestatus;
1300: }
1301: if (
1.284 albertel 1302: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1303: ($target eq 'answer') || ($target eq 'tex')
1304: ) {
1.227 albertel 1305: if ($target ne 'tex' &&
1.284 albertel 1306: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 1307: $result.="</form>";
1.159 albertel 1308: }
1309: if ($target eq 'web') {
1.346 albertel 1310: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1311: } elsif ($target eq 'tex') {
1.178 sakharuk 1312: my $endminipage = '';
1.284 albertel 1313: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1314: $endminipage = '\end{minipage}';
1315: }
1.284 albertel 1316: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1317: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1318: } else {
1.262 sakharuk 1319: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1320: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1321: $result .= $endminipage.'\end{document} ';
1322: } else {
1.382 albertel 1323: $result .= $endminipage;
1.262 sakharuk 1324: }
1.159 albertel 1325: }
1326: }
1327: }
1.476 www 1328: if ($target eq 'web') {
1329: $result.=&Apache::functionplotresponse::init_script();
1330: }
1.159 albertel 1331: if ($target eq 'grade') {
1332: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1333: &finalize_storage();
1334: }
1.284 albertel 1335: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1336: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1337: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1338: # normally we get it from above, but in CSTR
1.172 albertel 1339: # we always show answer mode too.
1.159 albertel 1340: }
1341: } elsif ($target eq 'meta') {
1342: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1343: @Apache::inputtags::response=();
1.159 albertel 1344: $result=&Apache::response::mandatory_part_meta;
1345: }
1.215 albertel 1346: $result.=&Apache::response::meta_part_order();
1.258 albertel 1347: $result.=&Apache::response::meta_response_order();
1.159 albertel 1348: } elsif ($target eq 'edit') {
1349: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1350: $result .= &problem_edit_footer();
1.320 albertel 1351: } elsif ($target eq 'modified') {
1352: $result .= $token->[2];
1.159 albertel 1353: }
1.155 albertel 1354:
1.284 albertel 1355: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1356: &Apache::inputtags::check_for_duplicate_ids();
1357: }
1.204 albertel 1358:
1359: &reset_problem_globals('problem');
1.159 albertel 1360:
1361: return $result;
1.48 albertel 1362: }
1363:
1.108 albertel 1364:
1.48 albertel 1365: sub start_library {
1.159 albertel 1366: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1367: my ($result,$form_tag_start);
1.371 albertel 1368: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1369: &init_problem_globals('library');
1370: $Apache::lonhomework::type='problem';
1371: }
1.159 albertel 1372: if ($target eq 'edit') {
1.343 albertel 1373: ($result,$form_tag_start)=
1374: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1375: 'Edit');
1376: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1377: my $temp=&Apache::edit::insertlist($target,$token);
1378: $result.=$temp;
1379: } elsif ($target eq 'modified') {
1380: $result=$token->[4];
1.340 albertel 1381: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1382: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1383: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1384: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1385: ($result,$form_tag_start)=
1386: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1387: $name);
1.479 raeburn 1388: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 1389: $result.=" \n $form_tag_start".
1.159 albertel 1390: '<input type="hidden" name="submitted" value="yes" />';
1391: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1392: if ($Apache::lonhomework::type eq 'practice') {
1393: $result.= '<input type="submit" name="resetdata" '.
1394: 'value="'.&mt('New Problem Variation').'" />'.
1395: &practice_problem_header().'<hr />';
1396: }
1.159 albertel 1397: }
1398: return $result;
1.48 albertel 1399: }
1400:
1401: sub end_library {
1.159 albertel 1402: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1403: my $result='';
1404: if ($target eq 'edit') {
1405: $result=&problem_edit_footer();
1.371 albertel 1406: } elsif ($target eq 'web'
1407: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1408: && $env{'request.state'} eq "construct") {
1.349 albertel 1409: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1410: }
1.371 albertel 1411: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1412: &reset_problem_globals('library');
1413: }
1.159 albertel 1414: return $result;
1.197 www 1415: }
1416:
1417: sub start_definetag {
1.326 albertel 1418: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1419:
1420: my $result;
1421:
1422: my $name = $token->[2]->{'name'};
1.326 albertel 1423: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1424: if ($target eq 'web') {
1425: if ($name=~/^\//) {
1426: $result=
1427: '<br /><table class="LC_sty_end"><tr><th>'.
1428: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1429: } else {
1430: $result=
1431: '<br /><table class="LC_sty_begin"><tr><th>'.
1432: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1433: }
1434: $skip = &HTML::Entities::encode($skip, '<>&"');
1435: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1436: }
1437: return $result;
1438: }
1439:
1440: sub end_definetag {
1441: return '';
1.1 albertel 1442: }
1443:
1444: sub start_block {
1.201 albertel 1445: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1446:
1447: my $result;
1.1 albertel 1448:
1.339 albertel 1449: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1450: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1451: my $code = $token->[2]->{'condition'};
1.385 albertel 1452: if (defined($code) && $code ne '') {
1.137 albertel 1453: if (!$Apache::lonxml::default_homework_loaded) {
1454: &Apache::lonxml::default_homework_load($safeeval);
1455: }
1.131 albertel 1456: $result = &Apache::run::run($code,$safeeval);
1457: &Apache::lonxml::debug("block :$code: returned :$result:");
1458: } else {
1459: $result='1';
1460: }
1461: if ( ! $result ) {
1.201 albertel 1462: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1463: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1464: }
1465: $result='';
1466: } elsif ($target eq 'edit') {
1467: $result .=&Apache::edit::tag_start($target,$token);
1468: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1469: $token,40);
1470: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1471: } elsif ($target eq 'modified') {
1472: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1473: $safeeval,'condition');
1474: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1475: }
1.131 albertel 1476: return $result;
1.1 albertel 1477: }
1478:
1479: sub end_block {
1.167 www 1480: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1481: my $result;
1482: if ($target eq "edit") {
1483: $result.= &Apache::edit::tag_end($target,$token,'');
1484: }
1485: return $result;
1486: }
1487:
1488: sub start_languageblock {
1.201 albertel 1489: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1490:
1491: my $result;
1492:
1.339 albertel 1493: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1494: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1495: my $include = $token->[2]->{'include'};
1496: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1497: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.394 www 1498: # This should not even happen, since we should at least have the server language
1.398 www 1499: if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
1500: # Now loop over all languages in order of preference
1501: foreach my $preferred_language (@preferred_languages) {
1.394 www 1502: # If the languageblock has no arguments, show the contents
1.399 www 1503: $result=1;
1504: my $found=0;
1.394 www 1505: # Do we have an include argument?
1.398 www 1506: if ($include) {
1.394 www 1507: # If include is specified, by default, don't render the block
1.399 www 1508: $result=0;
1.398 www 1509: foreach my $included_language (split(/\,/,$include)) {
1.394 www 1510: # ... but if my preferred language is included, render it
1.398 www 1511: if ($included_language eq $preferred_language) {
1.399 www 1512: $result=1;
1513: $found=1;
1.398 www 1514: }
1515: }
1516: }
1.394 www 1517: # Do we have an exclude argument?
1.398 www 1518: if ($exclude) {
1.399 www 1519: $result=1;
1.398 www 1520: foreach my $excluded_language (split(/\,/,$exclude)) {
1521: if ($excluded_language eq $preferred_language) {
1.399 www 1522: $result=0;
1523: $found=1;
1.398 www 1524: }
1525: }
1526: }
1.399 www 1527: if ($found) { last; }
1.398 www 1528: }
1.201 albertel 1529: if ( ! $result ) {
1530: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1531: $style);
1532: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1533: }
1534: $result='';
1.167 www 1535: } elsif ($target eq 'edit') {
1536: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1537: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1538: $token,40);
1.211 albertel 1539: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1540: $token,40);
1541: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1542: } elsif ($target eq 'modified') {
1543: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1544: $safeeval,'include',
1545: 'exclude');
1.167 www 1546: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1547: }
1548: return $result;
1549: }
1550:
1551: sub end_languageblock {
1.170 www 1552: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1553: my $result;
1.201 albertel 1554: if ($target eq "edit") {
1.170 www 1555: $result.= &Apache::edit::tag_end($target,$token,'');
1556: }
1557: return $result;
1558: }
1559:
1.397 albertel 1560: {
1561: my %available_texts;
1562: sub start_translated {
1563: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1564: &Apache::lonxml::register('Apache::structuretags',('lang'));
1565: undef(%available_texts);
1566: }
1567:
1568: sub end_translated {
1569: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1570: my $result;
1571: #show the translation on viewable targets
1572: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1573: # or non-viewable targets, if it's embedded in something that
1574: # wants the output
1575: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1576: && &Apache::lonxml::in_redirection() ) ) {
1577: my @possibilities = keys(%available_texts);
1578: my $which =
1579: &Apache::loncommon::languages(\@possibilities) || 'default';
1580: $result = $available_texts{$which};
1581: }
1582: undef(%available_texts);
1583: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1584: return $result;
1585: }
1586:
1587:
1588: sub start_lang {
1589: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1590: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1591: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1592: &Apache::lonxml::startredirection();
1593: }
1594: return '';
1595: }
1596:
1597: sub end_lang {
1598: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1599: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1600: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1601: my $result = &Apache::lonxml::endredirection();
1602: my $which = &Apache::lonxml::get_param('which',$parstack,
1603: $safeeval);
1.431 raeburn 1604: if ($which=~/\w/) {
1605: $available_texts{$which} = $result;
1606: }
1607: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
1608: $safeeval);
1609: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
1610: if ($language=~/\w/) {
1611: $available_texts{$language} = $result;
1612: }
1.427 bisitz 1613: }
1614:
1.397 albertel 1615: }
1616: return '';
1617: }
1618: }
1619:
1.170 www 1620: sub start_instructorcomment {
1.201 albertel 1621: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1622:
1623: my $result;
1624:
1.339 albertel 1625: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1626: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 1627: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 1628: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1629: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1630: $parser,$style);
1.170 www 1631: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1632: }
1633: $result='';
1634: } elsif ($target eq 'edit') {
1635: $result .=&Apache::edit::tag_start($target,$token);
1636: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1637: }
1638: return $result;
1639: }
1640:
1641: sub end_instructorcomment {
1.159 albertel 1642: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1643: my $result;
1644: if ($target eq "edit") {
1645: $result.= &Apache::edit::tag_end($target,$token,'');
1646: }
1647: return $result;
1.4 tsai 1648: }
1649:
1650: sub start_while {
1.326 albertel 1651: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1652:
1.160 albertel 1653: my $result;
1.339 albertel 1654: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1655: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1656: my $code = $token->[2]->{'condition'};
1.4 tsai 1657:
1.160 albertel 1658: push( @Apache::structuretags::whileconds, $code);
1659: if (!$Apache::lonxml::default_homework_loaded) {
1660: &Apache::lonxml::default_homework_load($safeeval);
1661: }
1662: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1663: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1664: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1665: push( @Apache::structuretags::whileline, $token->[5]);
1666: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1667: if ( $result ) {
1668: &Apache::lonxml::newparser($parser,\$bodytext);
1669: }
1670: } elsif ($target eq 'edit') {
1671: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1672: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1673: $token,40);
1674: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1675: } elsif ($target eq 'modified') {
1676: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1677: $safeeval,'condition');
1678: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1679: }
1.160 albertel 1680: return $result;
1.4 tsai 1681: }
1682:
1683: sub end_while {
1.159 albertel 1684: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1685: my $result;
1686:
1.339 albertel 1687: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1688: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1689: my $code = pop(@Apache::structuretags::whileconds);
1690: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1691: my $line = pop(@Apache::structuretags::whileline);
1692: my $return = &Apache::run::run($code,$safeeval);
1693: my $starttime=time;
1694: my $error=0;
1695: while ($return) {
1696: if (time-$starttime >
1697: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1698: $return = 0; $error=1; next;
1.161 albertel 1699: }
1700: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1701: if ($target eq 'grade' || $target eq 'answer' ||
1702: $target eq 'analyze') {
1703: # grade/answer/analyze should produce no output but if we
1704: # are redirecting, the redirecter should know what to do
1705: # with the output
1706: if (!$Apache::lonxml::redirection) { undef($result); }
1707: }
1.161 albertel 1708: $return = &Apache::run::run($code,$safeeval);
1709: }
1710: if ($error) {
1.430 bisitz 1711: &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 1712: }
1713: } elsif ($target eq "edit") {
1714: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1715: }
1.160 albertel 1716: return $result;
1.1 albertel 1717: }
1.6 tsai 1718:
1.160 albertel 1719: # <randomlist show="1">
1.6 tsai 1720: # <tag1>..</tag1>
1721: # <tag2>..</tag2>
1722: # <tag3>..</tag3>
1.160 albertel 1723: # ...
1.6 tsai 1724: # </randomlist>
1725: sub start_randomlist {
1.326 albertel 1726: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1727: my $result;
1.339 albertel 1728: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1729: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1730: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1731: my $b_parser= HTML::LCParser->new(\$body);
1732: $b_parser->xml_mode(1);
1733: $b_parser->marked_sections(1);
1.159 albertel 1734: my $b_tok;
1735: my @randomlist;
1736: my $list_item;
1737: while($b_tok = $b_parser->get_token() ) {
1738: if($b_tok->[0] eq 'S') { # start tag
1739: # get content of the tag until matching end tag
1740: # get all text upto the matching tag
1741: # and push the content into @randomlist
1742: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1743: $b_parser);
1744: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1745: push(@randomlist,$list_item);
1746: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1747: # $list_item</b>";
1748: }
1749: if($b_tok->[0] eq 'T') { # text
1750: # what to do with text in between tags?
1751: # print "<b>TEXT $b_tok->[1]</b><br />";
1752: }
1753: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1754: # print "<b>END-TAG $b_tok->[1]</b><br />";
1755: # }
1756: }
1.303 albertel 1757: if (@randomlist) {
1758: my @idx_arr = (0 .. $#randomlist);
1759: &Apache::structuretags::shuffle(\@idx_arr);
1760: my $bodytext = '';
1761: my $show=$#randomlist;
1762: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1763: $showarg--;
1764: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 1765: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
1766: my @currlist;
1767: my $part = $Apache::inputtags::part;
1768: if ($part ne '') {
1769: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
1770: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
1771: if (!(grep(/^\Q$part\E$/,@currlist))) {
1772: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1773: }
1774: } else {
1775: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1776: }
1777: }
1778: }
1.303 albertel 1779: for(0 .. $show) {
1780: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1781: }
1782: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1783: }
1784: } elsif ($target eq 'edit' ) {
1785: $result .=&Apache::edit::tag_start($target,$token);
1786: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1787: $token,5);
1788: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1789: } elsif ($target eq 'modified' ) {
1790: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1791: $safeeval,'show');
1792: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1793: }
1794: return $result;
1.7 tsai 1795: }
1796:
1797: sub shuffle {
1798: my $a=shift;
1799: my $i;
1.303 albertel 1800: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1801: &Apache::response::pushrandomnumber();
1.159 albertel 1802: for($i=@$a;--$i;) {
1803: my $j=int(&Math::Random::random_uniform() * ($i+1));
1804: next if $i == $j;
1805: @$a[$i,$j] = @$a[$j,$i];
1806: }
1.251 albertel 1807: &Apache::response::poprandomnumber();
1.7 tsai 1808: }
1.6 tsai 1809: }
1810:
1811: sub end_randomlist {
1.159 albertel 1812: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1813: my $result;
1814: if ($target eq 'edit' ) {
1815: $result=&Apache::edit::tag_end($target,$token,
1816: 'End Randomly Parsed Block');
1817: }
1818: return $result;
1.6 tsai 1819: }
1820:
1.283 albertel 1821: sub ordered_show_check {
1822: my $last_part=$Apache::inputtags::partlist[-2];
1823: my $in_order=
1824: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1825: my $in_order_show=1;
1826: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1827: $in_order_show=&Apache::response::check_status($last_part);
1828: }
1829: return $in_order_show;
1830: }
1831:
1.469 www 1832:
1833: sub start_startpartmarker {
1834: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1835: my $result='';
1836: if ($target eq 'edit') {
1837: $result=&Apache::edit::tag_start($target,$token);
1838: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
1839: $result.=&Apache::edit::end_table();
1840:
1841: }
1842: return $result;
1843: }
1844:
1845: sub end_startpartmarker {
1846: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1847: my @result;
1848: if ($target eq 'edit') { $result[1]='no'; }
1849: return @result;
1850: }
1851:
1852: sub start_endpartmarker {
1853: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1854: my $result='';
1855: if ($target eq 'edit') {
1856: $result=&Apache::edit::tag_start($target,$token);
1857: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
1858: $result.=&Apache::edit::end_table();
1859:
1860: }
1861: return $result;
1862: }
1863:
1864: sub end_endpartmarker {
1865: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1866: my @result;
1867: if ($target eq 'edit') { $result[1]='no'; }
1868: return @result;
1869: }
1870:
1871:
1872:
1873:
1874:
1.11 albertel 1875: sub start_part {
1.326 albertel 1876: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1877: if (!$Apache::lonxml::metamode) {
1878: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1879: # duedates.
1880: }
1.159 albertel 1881: my $result='';
1.386 albertel 1882: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1883: $Apache::inputtags::part=$id;
1.177 albertel 1884: push(@Apache::inputtags::partlist,$id);
1885: @Apache::inputtags::response=();
1.159 albertel 1886: @Apache::inputtags::previous=();
1887: @Apache::inputtags::previous_version=();
1.405 albertel 1888: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 1889: &Apache::response::reset_params();
1890:
1.159 albertel 1891: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1892: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1893: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1894: my $in_order_show=&ordered_show_check();
1.214 albertel 1895: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1896: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1897: &Apache::run::run($expression,$safeeval);
1.159 albertel 1898:
1899: if ($target eq 'meta') {
1.224 www 1900: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1901: return &Apache::response::mandatory_part_meta.
1902: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1903: } elsif ($target eq 'web' || $target eq 'grade' ||
1904: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1905: if ($hidden || !$in_order_show) {
1.326 albertel 1906: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1907: } else {
1908: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1909: push (@Apache::inputtags::status,$status);
1910: my $expression='$external::datestatus="'.$status.'";';
1911: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1912: &Apache::run::run($expression,$safeeval);
1.284 albertel 1913: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1914: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1915: }
1.216 albertel 1916: if (( $status eq 'CLOSED' ) ||
1917: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1918: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1919: ( $status eq 'BANNED') ||
1920: ( $status eq 'UNAVAILABLE') ||
1921: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1922: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1923: $style);
1.159 albertel 1924: if ( $target eq "web" ) {
1.211 albertel 1925: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1926: } elsif ( $target eq 'tex' ) {
1.284 albertel 1927: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1928: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1929: } else {
1.211 albertel 1930: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1931: }
1.159 albertel 1932: }
1933: } else {
1934: if ($target eq 'tex') {
1.284 albertel 1935: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1936: if ($$tagstack[-2] eq 'td') {
1.388 foxr 1937: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1938: } else {
1939: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1940: }
1.195 sakharuk 1941: }
1.159 albertel 1942: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1943: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1944: my @allkeys = split /,/,$allkeys;
1945: my $allow_print_points = 0;
1946: foreach my $partial_key (@allkeys) {
1.230 albertel 1947: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1948: if ($1 ne '0') {$allow_print_points=1;}
1949: }
1950: }
1.275 albertel 1951: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1952: if (defined($maxtries) && $maxtries < 0) {
1953: $allow_print_points=0;
1954: }
1.302 albertel 1955: if (lc($env{'course.'.$env{'request.course.id'}.
1956: '.disableexampointprint'}) eq 'yes') {
1957: $allow_print_points=0;
1958: }
1.463 foxr 1959: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1960: $result .= '\vskip 10mm\fbox{\textit{'.$weight.' pt}}';
1961:
1962: }
1.233 www 1963: } elsif ($target eq 'web') {
1.479 raeburn 1964: if ($status eq 'CAN_ANSWER') {
1965: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1966: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
1967: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
1968: my $num = scalar(@Apache::inputtags::partlist)-1;
1969: if ($probrandomize eq 'randomizetry') {
1970: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
1971: $result .= &randomizetry_part_header($problemstatus,'none',$num);
1972: } else {
1973: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1974: if ($probrandtries ne $reqtries) {
1975: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
1976: }
1977: }
1978: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
1979: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1980: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
1981: }
1982: }
1.475 raeburn 1983: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 1984: }
1985: }
1986: }
1987: } elsif ($target eq 'edit') {
1988: $result.=&Apache::edit::tag_start($target,$token);
1989: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1990: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1991: ' '.
1992: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1993: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1994: } elsif ($target eq 'modified') {
1995: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1996: $safeeval,'id','display');
1.159 albertel 1997: if ($constructtag) {
1.225 albertel 1998: #limiting ids to only letters numbers, and space
1.224 www 1999: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2000: $result = &Apache::edit::rebuild_tag($token);
2001: }
2002: }
2003: return $result;
1.11 albertel 2004: }
2005:
2006: sub end_part {
1.159 albertel 2007: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2008: &Apache::lonxml::debug("in end_part $target ");
2009: my $status=$Apache::inputtags::status['-1'];
2010: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2011: my $in_order_show=&ordered_show_check();
1.321 albertel 2012: my $result;
2013: if (!$Apache::lonxml::metamode) {
2014: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2015: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2016: }
1.312 albertel 2017: if ($target eq 'grade') {
1.249 albertel 2018: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2019: !$hidden && $in_order_show) {
1.311 foxr 2020: $result.=&Apache::inputtags::grade;
1.249 albertel 2021: } else {
2022: # move any submission data to .hidden
2023: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2024: }
1.283 albertel 2025: } elsif (($target eq 'web' || $target eq 'tex') &&
2026: !$hidden && $in_order_show) {
1.159 albertel 2027: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2028: $target);
1.212 albertel 2029: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
2030: $gradestatus='';
2031: }
1.311 foxr 2032: $result.=$gradestatus;
1.265 sakharuk 2033: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2034: } elsif ($target eq 'edit') {
1.311 foxr 2035: $result.=&Apache::edit::end_table();
1.322 albertel 2036: } elsif ($target eq 'modified') {
2037: $result .= $token->[2];
1.159 albertel 2038: }
2039: pop @Apache::inputtags::status;
2040: $Apache::inputtags::part='';
1.295 albertel 2041: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2042: return $result;
1.11 albertel 2043: }
1.1 albertel 2044:
1.25 albertel 2045: sub start_preduedate {
1.326 albertel 2046: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2047: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2048: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2049: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2050: if (!$Apache::lonhomework::scantronmode &&
2051: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2052: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2053: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2054: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2055: }
1.24 albertel 2056: }
1.159 albertel 2057: return '';
1.24 albertel 2058: }
2059:
1.25 albertel 2060: sub end_preduedate {
1.159 albertel 2061: return '';
1.24 albertel 2062: }
2063:
1.369 foxr 2064: # In all the modes where <postanswerdate> text is
2065: # displayable, all we do is eat up the text between the start/stop
2066: # tags if the conditions are not right to display it.
1.25 albertel 2067: sub start_postanswerdate {
1.326 albertel 2068: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2069: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2070: &Apache::lonnet::allowed('pav',
2071: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2072: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2073: $target eq 'tex' ) {
1.300 albertel 2074: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2075: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2076: (($target eq 'tex') && !$pav)) {
1.326 albertel 2077: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2078: }
2079: }
2080: return '';
1.24 albertel 2081: }
2082:
1.25 albertel 2083: sub end_postanswerdate {
1.159 albertel 2084: return '';
1.24 albertel 2085: }
2086:
1.25 albertel 2087: sub start_notsolved {
1.326 albertel 2088: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2089: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2090: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2091: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2092: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2093: if ($gradestatus =~ /^correct/ &&
2094: &Apache::response::show_answer()) {
1.159 albertel 2095: &Apache::lonxml::debug("skipping");
1.326 albertel 2096: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2097: }
1.24 albertel 2098: }
1.159 albertel 2099: return '';
1.24 albertel 2100: }
2101:
1.25 albertel 2102: sub end_notsolved {
1.159 albertel 2103: return '';
1.24 albertel 2104: }
2105:
2106: sub start_solved {
1.326 albertel 2107: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2108: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2109: $target eq 'tex') {
2110: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2111: if ($gradestatus !~ /^correct/ ||
2112: !&Apache::response::show_answer()) {
1.326 albertel 2113: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2114: }
1.24 albertel 2115: }
1.159 albertel 2116: return '';
1.24 albertel 2117: }
2118:
2119: sub end_solved {
1.248 albertel 2120: return '';
2121: }
2122:
2123: sub start_problemtype {
1.326 albertel 2124: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2125: my $result;
1.339 albertel 2126: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2127: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2128: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2129: if (!defined($mode)) { $mode='show'; }
2130: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2131: my $found=0;
2132: foreach my $type (split(',',$for)) {
2133: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2134: }
2135: if ($mode eq 'show' && !$found) {
1.326 albertel 2136: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2137: }
2138: if ($mode eq 'hide' && $found) {
1.326 albertel 2139: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2140: }
2141: } elsif ($target eq 'edit') {
2142: $result .=&Apache::edit::tag_start($target,$token);
2143: $result.=&Apache::edit::select_arg('Mode:','mode',
2144: [['show','Show'],
2145: ['hide','Hide']]
2146: ,$token);
2147: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
2148: [ ['exam','Exam/Quiz Problem'],
2149: ['survey','Survey'],
1.465 raeburn 2150: ['surveycred','Survey (with credit)'],
2151: ['anonsurvey','Anonymous Survey'],
2152: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2153: ['problem','Homework Problem'],
1.479 raeburn 2154: ['practice','Practice Problem'],
2155: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2156: ,$token);
2157: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2158: } elsif ($target eq 'modified') {
2159: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2160: $safeeval,'mode','for');
2161: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2162: }
2163: return $result;
2164: }
2165:
2166: sub end_problemtype {
1.159 albertel 2167: return '';
1.24 albertel 2168: }
1.34 albertel 2169:
2170: sub start_startouttext {
1.159 albertel 2171: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2172: my @result=(''.'');
2173: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2174:
2175: my $nesting =
2176: &Apache::lonxml::set_state('outtext',
2177: &Apache::lonxml::get_state('outtext')+1);
2178: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2179: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2180: }
1.159 albertel 2181: return (@result);
1.34 albertel 2182: }
1.159 albertel 2183:
1.34 albertel 2184: sub end_startouttext {
1.326 albertel 2185: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2186: my $result='';
2187: my $text='';
2188: if ($target eq 'edit') {
1.424 foxr 2189: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2190: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 2191: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 2192: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2193: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 2194: .'</span></td>'
2195: .'<td align="left"><span id="math_'.$areaid.'" />'
2196: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
2197: .'<span></td>'
2198: .'<td>'
2199: .&Apache::edit::insertlist($target,$token)
2200: .'</td>'
2201: .'<td align="right" valign="top">' .
2202: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2203: &Apache::edit::end_row().
1.362 albertel 2204: &Apache::edit::start_spanning_row()."\n".
1.255 www 2205: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2206: }
2207: if ($target eq 'modified') {
1.219 albertel 2208: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2209: }
2210: if ($target eq 'tex') {
2211: $result .= '\noindent ';
2212: }
2213: return $result;
1.34 albertel 2214: }
1.159 albertel 2215:
1.34 albertel 2216: sub start_endouttext {
1.159 albertel 2217: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2218: my $result='';
2219: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2220: if ($target eq "modified") {
2221: $result='<endouttext />'.
1.377 albertel 2222: &Apache::edit::handle_insertafter('startouttext');
2223: }
1.404 albertel 2224:
2225: my $nesting =
2226: &Apache::lonxml::set_state('outtext',
2227: &Apache::lonxml::get_state('outtext')-1);
2228: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2229: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2230: &Apache::lonxml::set_state('outtext', 0);
2231: }
1.159 albertel 2232: return $result;
1.34 albertel 2233: }
1.159 albertel 2234:
1.34 albertel 2235: sub end_endouttext {
1.159 albertel 2236: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2237: my @result=('','');
2238: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2239: return (@result);
1.34 albertel 2240: }
1.159 albertel 2241:
1.45 albertel 2242: sub delete_startouttext {
1.326 albertel 2243: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2244: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2245: my $text=$$parser['-1']->get_text("/endouttext");
2246: my $ntoken=$$parser['-1']->get_token();
2247: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2248: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2249: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2250: # they did the last time round
2251: &Apache::lonxml::increasedepth($ntoken);
2252: &Apache::lonxml::decreasedepth($ntoken);
2253: return 1;
1.193 www 2254: }
2255:
2256: sub start_simpleeditbutton {
2257: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2258: my $result='';
1.284 albertel 2259: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2260: ($target eq 'web') &&
1.330 albertel 2261: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2262: my $url=$env{'request.noversionuri'};
1.193 www 2263: $url=~s/\?.*$//;
1.367 albertel 2264: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 2265: # Warning makes more sense and is more important on edit screen
1.442 bisitz 2266: # $result='<p class="LC_warning">'
2267: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2268: # .&Apache::loncommon::help_open_topic('Caching')
2269: # .'</p>';
1.451 bisitz 2270: $result.=&Apache::lonhtmlcommon::start_funclist()
2271: .&Apache::lonhtmlcommon::add_item_funclist(
2272: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
2273: .&mt('Edit').'</a>')
2274: .&Apache::lonhtmlcommon::end_funclist();
1.442 bisitz 2275:
1.193 www 2276: }
2277: return $result;
2278: }
2279:
2280: sub end_simpleeditbutton {
2281: return '';
1.45 albertel 2282: }
1.34 albertel 2283:
1.428 raeburn 2284: sub practice_problem_header {
2285: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2286: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2287: '</span>';
2288: }
2289:
1.479 raeburn 2290: sub randomizetry_problem_header {
2291: my ($problemstatus,$reqtries) = @_;
2292: my ($header,$text);
2293: if ($reqtries > 1) {
2294: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
2295: if (($problemstatus eq 'no') ||
2296: ($problemstatus eq 'no_feedback_ever')) {
2297: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2298: } else {
2299: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2300: }
2301: } else {
2302: $header = &mt('New Problem Variation Each Try');
2303: if (($problemstatus eq 'no') ||
2304: ($problemstatus eq 'no_feedback_ever')) {
2305: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
2306:
2307: } else {
2308: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
2309: }
2310: }
2311: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
2312: '<span class="LC_info">'.$text.'</span><hr />';
2313: }
2314:
2315: sub randomizetry_part_header {
2316: my ($problemstatus,$reqtries,$num) = @_;
2317: my ($header,$text);
2318: if ($reqtries eq 'none') {
2319: $header = &mt('No Question Variation');
2320: $text = &mt('For this question there will no new variation after a try.');
2321: } elsif ($reqtries > 1) {
2322: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
2323: if (($problemstatus eq 'no') ||
2324: ($problemstatus eq 'no_feedback_ever')) {
2325: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2326: } else {
2327: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2328: }
2329: } else {
2330: $header = &mt('New Question Variation For Each Try');
2331: if (($problemstatus eq 'no') ||
2332: ($problemstatus eq 'no_feedback_ever')) {
2333: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
2334: } else {
2335: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
2336: }
2337: }
2338: my $output;
2339: if ($num > 1) {
2340: $output .= '<hr />';
2341: }
2342: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
2343: '<span class="LC_info">'.$text.'</span><br /><br />';
2344: return $output;
2345: }
2346:
1.1 albertel 2347: 1;
2348: __END__
1.435 jms 2349:
2350: =pod
2351:
2352: =back
2353:
2354: =cut
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