Annotation of loncom/homework/structuretags.pm, revision 1.482
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.482 ! raeburn 4: # $Id: structuretags.pm,v 1.481 2010/12/20 18:33:20 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">
131: function setSubmittedPart (part) {
132: this.document.lonhomework.submitted.value="part_"+part;
133: }
134:
135: function image_response_click (which, e) {
136: init_geometry();
137: if (!e) { e = window.event; } //IE
138: var input_element = document.lonhomework.elements[which];
1.401 albertel 139: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 140: var token = token_element.value;
1.401 albertel 141: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 142: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
143: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
144: var click = x+':'+y;
145: input_element.value = click;
146: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
147: }
1.416 raeburn 148:
1.400 albertel 149: </script>
150: JS
151: }
152:
1.416 raeburn 153: sub setmode_javascript {
154: return <<"ENDSCRIPT";
155: <script type="text/javascript">
156: function setmode(form,probmode) {
157: form.problemmode.value = probmode;
158: form.submit();
159: }
160: </script>
161: ENDSCRIPT
162: }
163:
1.478 raeburn 164: sub file_delchk_js {
165: my $delfilewarn = &mt('You have indicated you wish to delete some files previously included for submission.').'\\n'.
166: &mt('Deleted files will not be graded.').' '.
167: &mt('Submit Answer?');
168: return <<"ENDSCRIPT";
169: <script type="text/javascript">
170: function file_deletion_check(formname) {
171: var elemnum = formname.elements.length;
172: if (elemnum == 0) {
173: return true;
174: }
1.482 ! raeburn 175: var str = new RegExp("^HWFILE.+_delete\$");
! 176: var delboxes = new Array();
! 177: for (var i=0; i<formname.elements.length; i++) {
1.478 raeburn 178: var id = formname.elements[i].id;
179: if (id != '') {
180: if (str.test(id)) {
181: if (formname.elements[i].type == 'checkbox') {
182: if (formname.elements[i].checked) {
1.482 ! raeburn 183: delboxes.push(id);
1.478 raeburn 184: }
185: }
186: }
187: }
188: }
1.482 ! raeburn 189: if (delboxes.length > 0) {
1.478 raeburn 190: if (confirm("$delfilewarn")) {
191: return true;
192: } else {
1.482 ! raeburn 193: for (var j=0; j<delboxes.length; j++) {
! 194: formname.elements[delboxes[j]].checked = false;
! 195: }
1.478 raeburn 196: return false;
197: }
198: } else {
199: return true;
200: }
201: }
202: </script>
203: ENDSCRIPT
204: }
205:
1.48 albertel 206: sub page_start {
1.345 albertel 207: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
208: $extra_head)=@_;
1.159 albertel 209: my %found;
1.207 albertel 210: foreach my $taginside (@$tagstack) {
1.159 albertel 211: foreach my $taglookedfor ('html','body','form') {
212: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
213: }
214: }
215:
1.343 albertel 216: if ($target eq 'tex') {
217: return
218: &Apache::londefdef::start_html($target,$token,$tagstack,
219: $parstack,$parser,$safeeval);
220: }
221:
1.474 raeburn 222: $extra_head .= &homework_js().
223: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
224: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
225: my %textarea_args = (
226: dragmath => 'math',
227: );
228: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 229: }
1.478 raeburn 230: my $is_task = ($env{'request.uri'} =~ /\.task$/);
231: if ($is_task) {
232: $extra_head .= &file_delchk_js();
233: }
1.425 raeburn 234:
1.344 albertel 235: my %body_args;
236: if (defined($found{'html'})) {
237: $body_args{'skip_phases'}{'head'}=1;
238: } else {
1.343 albertel 239:
1.345 albertel 240: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 241:
1.379 albertel 242: $extra_head .= &Apache::londefdef::generate_css_links();
243:
1.384 albertel 244: if ($env{'request.state'} eq 'construct') {
1.343 albertel 245: $extra_head.=&Apache::edit::js_change_detection().
246: "<script type=\"text/javascript\">\n".
247: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
248: &Apache::loncommon::browser_and_searcher_javascript().
249: "\n</script>\n";
250: }
1.159 albertel 251: }
1.343 albertel 252:
1.446 bisitz 253: my $pageheader = '';
1.344 albertel 254: if (defined($found{'body'})) {
255: $body_args{'skip_phases'}{'body'}=1;
256: } elsif (!defined($found{'body'})
257: && $env{'request.state'} eq 'construct') {
1.343 albertel 258: if ($target eq 'web' || $target eq 'edit') {
1.450 bisitz 259: # Breadcrumbs for Construction Space
260: &Apache::lonhtmlcommon::clear_breadcrumbs();
261: &Apache::lonhtmlcommon::add_breadcrumb({
262: 'text' => 'Construction Space',
263: 'href' => &Apache::loncommon::authorspace(),
264: });
1.460 droeschl 265: # breadcrumbs (and tools) will be created
266: # in start_page->bodytag->innerregister
267:
1.450 bisitz 268: # FIXME Where are we?
269: # &Apache::lonhtmlcommon::add_breadcrumb({
270: # 'text' => 'Problem Editing', # 'Problem Testing'
271: # 'href' => '',
272: # });
1.460 droeschl 273: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 274: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 275: }
1.272 albertel 276: } elsif (!defined($found{'body'})) {
1.343 albertel 277: my %add_entries;
1.159 albertel 278: my $background=&Apache::lonxml::get_param('background',$parstack,
279: $safeeval);
1.343 albertel 280: if ($background ne '' ) {
281: $add_entries{'background'} = $background;
282: }
1.344 albertel 283:
1.290 albertel 284: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
285: $safeeval);
1.446 bisitz 286: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 287:
1.446 bisitz 288: $body_args{'bgcolor'} = $bgcolor;
289: # $body_args{'no_title'} = 1;
290: $body_args{'force_register'} = 1;
291: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 292: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 293: $body_args{'only_body'} = 1;
294: }
1.344 albertel 295: }
1.365 albertel 296: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 297: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
298: \%body_args);
1.446 bisitz 299: $page_start .= $pageheader;
1.462 raeburn 300: if (!defined($found{'body'})
301: && $env{'request.state'} ne 'construct'
302: && ($target eq 'web' || $target eq 'webgrade')) {
303:
304: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
305: if ($symb eq '' && !$publicuser) {
306: $page_start .= '<p class="LC_info">'
307: .&mt('Browsing resource, all submissions are temporary.')
308: .'</p>';
1.457 bisitz 309: }
1.344 albertel 310: }
311:
1.409 albertel 312: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 313: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 314: }
1.344 albertel 315:
1.159 albertel 316: my $form_tag_start;
317: if (!defined($found{'form'})) {
1.337 albertel 318: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 319: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 320: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 321: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 322: $form_tag_start.=$uri.'" ';
323: if ($target eq 'edit') {
324: $form_tag_start.=&Apache::edit::form_change_detection();
325: }
1.478 raeburn 326: if ($is_task) {
327: $form_tag_start .= ' onsubmit="return file_deletion_check(this);"';
328: }
1.368 albertel 329: $form_tag_start.='>'."\n";
1.355 albertel 330:
331: my $symb=&Apache::lonnet::symbread();
332: if ($symb =~ /\S/) {
333: $symb=
334: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
335: $form_tag_start.=
1.368 albertel 336: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 337: }
1.159 albertel 338: }
1.343 albertel 339: return ($page_start,$form_tag_start);
1.105 albertel 340: }
341:
1.141 matthew 342: #use Time::HiRes();
1.105 albertel 343: sub get_resource_name {
1.159 albertel 344: my ($parstack,$safeeval)=@_;
1.388 foxr 345: my $name;
1.204 albertel 346: if (defined($Apache::lonhomework::name)) {
1.388 foxr 347: $name = $Apache::lonhomework::name;
348: } else {
349: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 350: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 351: if ($name eq '') {
352: $name=&Apache::lonnet::EXT('resource.title');
353: if ($name eq 'con_lost') { $name = ''; }
354: }
355: if ($name!~/\S+/) {
356: $name=$env{'request.uri'};
357: $name=~s-.*/([^/]+)$-$1-;
358: }
359: # The name has had html tags escaped:
360:
361: $name=~s/</</gs;
362: $name=~s/>/>/gs;
363:
364: $Apache::lonhomework::name=$name;
1.204 albertel 365: }
1.159 albertel 366: return $name;
1.105 albertel 367: }
368:
369: sub setup_rndseed {
1.479 raeburn 370: my ($safeeval,$target)=@_;
1.367 albertel 371: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 372: my ($questiontype,$set_safespace,$rndseed);
373: if ($target eq 'analyze') {
374: $questiontype = $env{'form.grade_questiontype'};
375: }
376: unless (defined($questiontype)) {
377: $questiontype = $Apache::lonhomework::type;
378: }
1.333 albertel 379: if ($env{'request.state'} eq "construct"
380: || $symb eq ''
381: || $Apache::lonhomework::type eq 'practice'
382: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 383: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 384: ['rndseed']);
1.284 albertel 385: $rndseed=$env{'form.rndseed'};
1.159 albertel 386: if (!$rndseed) {
1.162 albertel 387: $rndseed=$Apache::lonhomework::history{'rndseed'};
388: if (!$rndseed) {
389: $rndseed=time;
390: }
1.284 albertel 391: $env{'form.rndseed'}=$rndseed;
1.162 albertel 392: }
1.479 raeburn 393: if (($env{'request.state'} eq "construct") &&
394: ($Apache::lonhomework::type eq 'randomizetry')) {
395: my $tries = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
396: if ($tries) {
397: $rndseed += $tries;
398: }
1.480 raeburn 399: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.479 raeburn 400: }
1.374 albertel 401: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
402: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 403: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 404: srand(time);
405: $rndseed=int(rand(2100000000));
1.284 albertel 406: $env{'form.rndseed'}=$rndseed;
407: delete($env{'form.resetdata'});
408: delete($env{'form.newrandomization'});
1.159 albertel 409: }
1.187 albertel 410: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 411: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 412: }
1.247 albertel 413: if ($Apache::lonhomework::history{'resource.CODE'}) {
414: $rndseed=&Apache::lonnet::rndseed();
415: }
1.479 raeburn 416: $set_safespace = 1;
417: } elsif ($questiontype eq 'randomizetry') {
418: if ($target eq 'analyze') {
419: if (defined($env{'form.grade_rndseed'})) {
420: $rndseed = $env{'form.grade_rndseed'};
421: }
422: }
423: unless (($target eq 'analyze') && (defined($rndseed))) {
424: $rndseed=&Apache::lonnet::rndseed();
425: my $curr_try = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
426: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
427: $curr_try ++;
428: }
429: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
430: $rndseed = $1;
431: }
432: if ($curr_try) {
433: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
434: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
435: my $inc = int(($curr_try-1)/$reqtries);
436: $rndseed += $inc;
437: } else {
438: $rndseed += $curr_try;
439: }
440: }
441: }
442: $set_safespace = 1;
443: }
444: if ($set_safespace) {
445: if ($safeeval) {
446: &Apache::lonxml::debug("Setting rndseed to $rndseed");
447: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
448: }
449: }
450: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
451: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 452: }
453: return $rndseed;
1.105 albertel 454: }
455:
1.268 albertel 456: sub remember_problem_state {
457: return '
1.284 albertel 458: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
459: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
460: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 461: }
462:
1.423 www 463: sub problem_edit_buttons {
464: return '
1.408 albertel 465: <div class="LC_edit_problem_discards">
1.416 raeburn 466: <input type="button" name="submitmode" accesskey="d" value="'.&mt('Discard Edits and View').'" '.
1.423 www 467: ' onclick="javscript:setmode(this.form,'."'discard'".')" />
1.416 raeburn 468: <input '.&Apache::edit::submit_ask_anyway('setmode(this.form,'."'editxml'".')').' type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" />
1.407 albertel 469: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
1.408 albertel 470: </div>
471: <div class="LC_edit_problem_saves">
1.416 raeburn 472: <input type="submit" name="submitbutton" accesskey="s" value="'.&mt('Save and Edit').'" />
473: <input type="submit" name="submitbutton" accesskey="v" value="'.&mt('Save and View').'" />
1.423 www 474: </div>';
475: }
476:
477: sub problem_edit_header {
478: return '<input type="hidden" name="submitted" value="edit" /><input type="hidden" name="problemmode" value="edit" />'.
479: &Apache::structuretags::remember_problem_state().'
480: <div class="LC_edit_problem_header">
481: <div class="LC_edit_problem_header_title">
482: '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
483: </div>'.
484: &problem_edit_buttons().'
1.459 bisitz 485: <hr style="clear:both;" />
1.409 albertel 486: '.&Apache::lonxml::message_location().'
1.408 albertel 487: </div>
488: '.
1.458 bisitz 489: '<table border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
1.105 albertel 490: }
491:
492: sub problem_edit_footer {
1.412 albertel 493: return '</td></tr></table><br />
494: <div class="LC_edit_problem_footer">
1.453 bisitz 495: <hr />'.
1.423 www 496: &problem_edit_buttons().'
1.459 bisitz 497: <hr style="clear:both;" />
1.412 albertel 498: </div>
499: '.
1.342 albertel 500: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 501: }
502:
1.235 albertel 503: sub option {
504: my ($value,$name) = @_;
505: my $result ="<option value='".$value."' ";
1.284 albertel 506: if ($env{'form.'.$name} eq $value) {
1.235 albertel 507: $result.=" selected='on' ";
508: }
509: $result.='>';
510: return $result;
511: }
512:
1.105 albertel 513: sub problem_web_to_edit_header {
1.159 albertel 514: my ($rndseed)=@_;
1.406 albertel 515: my $result .= '<div class="LC_edit_problem_header">';
516:
517: if (!$Apache::lonhomework::parsing_a_task) {
518: $result .=
519: '<div class="LC_edit_problem_header_title">'.
520: &mt('Problem Testing').
521: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
522: '</div>';
523: } else {
524: $result .=
525: '<div class="LC_edit_problem_header_title">'.
526: &mt('Task Testing').
527: '</div>';
528: }
529:
1.315 albertel 530: my $show_all_foils_text =
531: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 532: &mt('Show All Instances')
533: : &mt('Show All Foils');
1.315 albertel 534:
1.452 bisitz 535: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
536: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 537: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 538: $show_all.= ' /> '.$show_all_foils_text
539: .'</label></span>';
1.406 albertel 540:
541:
1.384 albertel 542:
1.406 albertel 543: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 544: if (!$Apache::lonhomework::parsing_a_task) {
545: $result.="
1.406 albertel 546: <div class='LC_edit_problem_header_row1'>
547: <span class=\"LC_nobreak\">
1.405 albertel 548: ".&mt("Problem Status:")."
1.235 albertel 549: <select name='problemstate'>
1.270 albertel 550: <option value=''></option>
1.235 albertel 551: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
552: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
553: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
554: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
555: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
556: </select>
1.406 albertel 557: </span>
558: <span class=\"LC_nobreak\">
1.405 albertel 559: ".&mt("Problem Type:")."
1.235 albertel 560: <select name='problemtype'>
1.270 albertel 561: <option value=''></option>
1.242 albertel 562: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 563: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 564: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 565: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
566: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
567: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 568: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 raeburn 569: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 570: </select>
1.406 albertel 571: </span>
572: $show_all
573: </div>
574: <div class='LC_edit_problem_header_row2'>
575: <span class=\"LC_nobreak\">
1.405 albertel 576: ".&mt("Feedback Mode:")."
1.235 albertel 577: <select name='problemstatus'>
578: <option value=''></option>
1.242 albertel 579: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.405 albertel 580: ".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
581: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 582: </select>
1.406 albertel 583: </span>
584: ";
585:
1.376 albertel 586: } elsif ($Apache::lonhomework::parsing_a_task) {
587: $result.="
1.406 albertel 588: <div class='LC_edit_problem_header_row1'>
589: <span class=\"LC_nobreak\">
1.405 albertel 590: ".&mt("Problem Status:")."
1.376 albertel 591: <select name='problemstate'>
592: <option value=''></option>
593: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
594: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
595: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
596: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
597: </select>
1.406 albertel 598: </span>
599: $show_all
600: ";
601: }
602: $result.='
603: <span class="LC_nobreak">
604: '.&mt('Apply style file: ').'
605: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
606: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
607: </span>
1.422 www 608: </div>
609: <div class="LC_edit_problem_header_row1">'.
610: &Apache::lonxml::renderingoptions().'
1.406 albertel 611: </div>
612: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
613: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
614: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
615: </div>
1.453 bisitz 616: <hr />
1.406 albertel 617: <div class="LC_edit_problem_header_randomize_row">
618: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
619: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
620: <input type="text" name="rndseed" size="10" value="'.
621: $rndseed.'"
622: onchange="javascript:document.lonhomework.changerandseed.click()" />';
623:
624: if (!$Apache::lonhomework::parsing_a_task) {
625: my $numtoanalyze=$env{'form.numtoanalyze'};
626: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 627: $result .= '<span class="LC_nobreak">'.
628: &mt('[_1] for [_2] versions.',
1.416 raeburn 629: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 630: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
631: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 632: $numtoanalyze.'" size="5" />').
633: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
634: '</span>';
635:
1.313 albertel 636: }
1.406 albertel 637:
638: $result.='
639: </div>
1.453 bisitz 640: <hr />
1.447 bisitz 641: <div>';
1.416 raeburn 642: $result.='<input type="hidden" name="problemmode" value="view" />';
643: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
644: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
645: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
646: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 647: $result.='
648: </div>
1.453 bisitz 649: <hr />
1.409 albertel 650: '.&Apache::lonxml::message_location().'
1.406 albertel 651: </div>';
1.159 albertel 652: return $result;
1.48 albertel 653: }
654:
1.65 albertel 655: sub initialize_storage {
1.357 albertel 656: my ($given_symb) = @_;
1.353 albertel 657: undef(%Apache::lonhomework::results);
658: undef(%Apache::lonhomework::history);
1.357 albertel 659: my ($symb,$courseid,$domain,$name) =
1.367 albertel 660: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 661:
662: # anonymous users (CODEd exams) have no data
663: if ($name eq 'anonymous'
664: && !defined($domain)) {
665: return;
666: }
667:
1.333 albertel 668: if ($env{'request.state'} eq 'construct'
669: || $symb eq ''
670: || $Apache::lonhomework::type eq 'practice') {
671:
672: my $namespace = $symb || $env{'request.uri'};
673: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 674: ($env{'form.resetdata'} eq &mt('New Problem Variation')
675: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 676: $env{'form.newrandomization'} eq &mt('New Randomization')) {
677: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
678: &Apache::lonxml::debug("Attempt reset");
679: }
1.159 albertel 680: %Apache::lonhomework::history=
1.333 albertel 681: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 682: my ($temp)=keys %Apache::lonhomework::history ;
683: &Apache::lonxml::debug("Return message of $temp");
684: } else {
685: %Apache::lonhomework::history=
686: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
687: }
1.353 albertel 688:
1.159 albertel 689: #ignore error conditions
1.67 albertel 690: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 691: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 692: }
693:
1.435 jms 694: =pod
695:
696: =item finalize_storage()
697:
698: Stores away the result has to a student's environment
699: checks form.grade_ for specific values, other wises stores
700: to the running users environment
701: Will increment totals for attempts, students, and corrects
702: if running user has student role.
703:
704: =cut
705:
706:
1.65 albertel 707: sub finalize_storage {
1.357 albertel 708: my ($given_symb) = @_;
1.159 albertel 709: my $result;
1.289 albertel 710: if (%Apache::lonhomework::results) {
1.323 albertel 711: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
712: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 713: my ($symb,$courseid,$domain,$name) =
1.367 albertel 714: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 715: if ($env{'request.state'} eq 'construct'
716: || $symb eq ''
717: || $Apache::lonhomework::type eq 'practice') {
718: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 719: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 720: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 721: $namespace,'',$domain,$name);
1.159 albertel 722: &Apache::lonxml::debug('Construct Store return message:'.$result);
723: } else {
724: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
725: $symb,$courseid,$domain,$name);
726: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 727: &store_aggregates($symb,$courseid);
1.159 albertel 728: }
1.323 albertel 729: } else {
730: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 731: }
1.159 albertel 732: return $result;
1.65 albertel 733: }
734:
1.435 jms 735: =pod
736:
737: item store_aggregates()
738:
739: Sends hash of values to be incremented in nohist_resourcetracker.db
740: for the course. Increments total number of attempts, unique students
741: and corrects for each part for an instance of a problem, as appropriate.
742:
743: =cut
744:
1.285 raeburn 745: sub store_aggregates {
746: my ($symb,$courseid) = @_;
1.479 raeburn 747: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 748: my @parts;
1.288 albertel 749: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
750: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 751: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 752: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 753: push(@parts, $1);
1.285 raeburn 754: }
755: }
1.286 albertel 756: foreach my $part (@parts) {
1.470 raeburn 757: if ($env{'request.role'} =~/^st/) {
758: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
759: eq 'APPROX_ANS' ||
760: $Apache::lonhomework::results{'resource.'.$part.'.award'}
761: eq 'EXACT_ANS') {
762: $aggregate{$symb."\0".$part."\0correct"} = 1;
763: }
764: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
765: $aggregate{$symb."\0".$part."\0users"} = 1;
766: } else {
767: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
768: if ($last_reset) {
769: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
770: $aggregate{$symb."\0".$part."\0users"} = 1;
771: }
772: }
773: }
774: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 775: }
1.470 raeburn 776: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 raeburn 777: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
778: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
779: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
780: $randtrycounter{$symb."\0".$part} = 1;
781: } else {
782: $anoncounter{$symb."\0".$part} = 1;
783: }
1.470 raeburn 784: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
785: if ($needsrelease) {
786: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
787: if ($curr_required eq '') {
1.471 raeburn 788: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 789: } else {
790: my ($currmajor,$currminor) = split(/\./,$curr_required);
791: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
792: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 793: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 794: }
1.292 raeburn 795: }
796: }
1.285 raeburn 797: }
798: }
1.292 raeburn 799: if (keys (%aggregate) > 0) {
1.289 albertel 800: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 801: $cdomain,$cname);
802: }
1.472 raeburn 803: if (keys(%anoncounter) > 0) {
1.481 raeburn 804: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
805: $cdomain,$cname);
1.472 raeburn 806: }
1.479 raeburn 807: if (keys(%randtrycounter) > 0) {
1.481 raeburn 808: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
809: $cdomain,$cname);
1.479 raeburn 810: }
1.292 raeburn 811: }
1.289 albertel 812:
1.65 albertel 813: sub checkout_msg {
1.211 albertel 814: my %lt=&Apache::lonlocal::texthash(
815: 'resource'=>'The resource needs to be checked out',
816: '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.',
817: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
818: 'checkout'=>'Check out Exam for Viewing',
819: 'checkout?'=>'Check out Exam?');
1.352 albertel 820: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 821: return (<<ENDCHECKOUT);
1.211 albertel 822: <h2>$lt{'resource'}</h2>
823: <p>$lt{'id_expln'}</p>
1.449 bisitz 824: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 825: <form name="checkout" method="post" action="$uri">
1.91 albertel 826: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 827: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 828: </form>
829: ENDCHECKOUT
830: }
831:
1.252 albertel 832: sub firstaccess_msg {
1.253 albertel 833: my ($time,$symb)=@_;
1.414 albertel 834: my $result;
835: my @interval=&Apache::lonnet::EXT("resource.0.interval");
836: if ($interval[1] eq 'map') {
837: my ($map)=&Apache::lonnet::decode_symb($symb);
838: my $foldertitle=&Apache::lonnet::gettitle($map);
839:
840: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.418 bisitz 841: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
842: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
843: ,$foldertitle,$time)."</h2>";
1.414 albertel 844: } elsif ($interval[1] eq 'course') {
845: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.418 bisitz 846: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
847: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
848: ,$course,$time)."</h2>";
1.414 albertel 849: } else {
850: my $title=&Apache::lonnet::gettitle($symb);
1.418 bisitz 851: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.'
852: .' Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
853: ,$title,$time)."</h2>";
1.414 albertel 854: }
1.352 albertel 855: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 856: my $buttontext = &mt('Show Resource');
857: my $timertext = &mt('Start Timer?');
1.414 albertel 858: $result .= (<<ENDCHECKOUT);
1.444 bisitz 859: <form name="markaccess" method="post" action="$uri">
1.252 albertel 860: <input type="hidden" name="markaccess" value="yes" />
1.418 bisitz 861: <input type="button" name="accessbutton" value="$buttontext" onClick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 862: </form>
863: ENDCHECKOUT
1.414 albertel 864: return $result;
1.252 albertel 865: }
866:
1.204 albertel 867: sub init_problem_globals {
868: my ($type)=@_;
869: #initialize globals
1.308 foxr 870: # For problems, we start out in part 0 (outside a <part> tag).
871: # and part 0 is used to describe the main body of the <problem>
872: #
1.204 albertel 873: if ($type eq 'problem') {
874: $Apache::inputtags::part='0';
875: @Apache::inputtags::partlist=('0');
1.405 albertel 876: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 877: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 878:
1.266 albertel 879: } elsif ($type eq 'library') {
1.204 albertel 880: $Apache::inputtags::part='';
881: @Apache::inputtags::partlist=();
1.405 albertel 882: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 883: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 884:
1.304 albertel 885: } elsif ($type eq 'Task') {
886: $Apache::inputtags::part='0';
887: @Apache::inputtags::partlist=('0');
1.405 albertel 888: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 889: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 890: }
1.477 www 891: @Apache::functionplotresponse::callscripts=();
1.204 albertel 892: @Apache::inputtags::responselist = ();
893: @Apache::inputtags::importlist = ();
894: @Apache::inputtags::previous=();
895: @Apache::inputtags::previous_version=();
896: $Apache::structuretags::printanswer='No';
897: @Apache::structuretags::whileconds=();
898: @Apache::structuretags::whilebody=();
899: @Apache::structuretags::whileline=();
900: $Apache::lonhomework::scantronmode=0;
901: undef($Apache::lonhomework::name);
1.358 albertel 902: undef($Apache::lonhomework::default_type);
903: undef($Apache::lonhomework::type);
1.204 albertel 904: }
905:
906: sub reset_problem_globals {
907: my ($type)=@_;
908: undef(%Apache::lonhomework::history);
909: undef(%Apache::lonhomework::results);
910: undef($Apache::inputtags::part);
1.208 albertel 911: #don't undef this, lonhomework.pm takes care of this, we use this to
912: #detect if we try to do 2 problems in one file
913: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 914: undef($Apache::lonhomework::name);
1.358 albertel 915: undef($Apache::lonhomework::default_type);
916: undef($Apache::lonhomework::type);
917: undef($Apache::lonhomework::scantronmode);
918: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 919: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 920: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 921: }
922:
1.241 albertel 923: sub set_problem_state {
1.240 albertel 924: my ($part)=@_;
1.284 albertel 925: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 926: $Apache::lonhomework::history{"resource.$part.solved"}=
927: 'correct_by_student';
928: }
929: }
930:
1.241 albertel 931: sub get_problem_status {
932: my ($part)=@_;
1.267 albertel 933: my $problem_status;
1.284 albertel 934: if ($env{'request.state'} eq 'construct' &&
935: defined($env{'form.problemstatus'})) {
936: $problem_status=$env{'form.problemstatus'};
1.267 albertel 937: } else {
938: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
939: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 940: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 941: }
942: return $problem_status;
943: }
944:
1.9 albertel 945: sub start_problem {
1.326 albertel 946: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 947:
1.311 foxr 948: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 949: if (!$Apache::lonxml::metamode) {
950: &Apache::lonxml::startredirection();
951: }
1.311 foxr 952:
1.308 foxr 953: # Problems don't nest and we don't allow more than one <problem> in
954: # a .problem file.
955: #
1.184 albertel 956: if ( $Apache::inputtags::part ne '' ||
957: $Apache::lonhomework::parsing_a_problem) {
958: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 959: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 960: return '';
961: }
1.184 albertel 962:
963: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 964: &init_problem_globals('problem');
1.166 albertel 965:
1.284 albertel 966: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 967: $Apache::lonhomework::scantronmode=1;
968: }
1.161 albertel 969:
1.159 albertel 970: if ($target ne 'analyze') {
1.415 raeburn 971: my $type = &Apache::lonnet::EXT('resource.0.type');
972: $Apache::lonhomework::type=$type;
1.284 albertel 973: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 974: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 975: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 976: }
1.332 albertel 977: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 978: }
1.164 albertel 979: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 980: my $uri=$env{'request.uri'};
1.159 albertel 981: if ($uri=~/\.(\w+)$/) {
982: $Apache::lonhomework::type=$1;
983: &Apache::lonxml::debug("Using type of $1");
984: } else {
985: $Apache::lonhomework::type='problem';
986: &Apache::lonxml::debug("Using default type, problem, :$uri:");
987: }
1.87 albertel 988: }
1.301 albertel 989: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 990:
1.363 albertel 991: &initialize_storage();
1.389 albertel 992: if ($target ne 'analyze'
993: && $env{'request.state'} eq 'construct') {
994: &set_problem_state('0');
995: }
996:
1.366 albertel 997: if ($target eq 'web') {
998: &Apache::lonxml::debug(" grading history ");
999: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1000: }
1.363 albertel 1001:
1.159 albertel 1002: #added vars to the scripting enviroment
1.213 albertel 1003: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1004: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1005: &Apache::run::run($expression,$safeeval);
1.159 albertel 1006: my $status;
1007: my $accessmsg;
1008:
1.343 albertel 1009: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 1010: my ($result,$form_tag_start);
1.354 albertel 1011: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1012: || $target eq 'edit') {
1.350 albertel 1013: ($result,$form_tag_start) =
1014: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1015: $name);
1016: }
1017:
1.284 albertel 1018: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1019:
1.479 raeburn 1020: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1021: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1022: $target eq 'tex') {
1.284 albertel 1023: if ($env{'form.markaccess'}) {
1.414 albertel 1024: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1025: &Apache::lonnet::set_first_access($interval[1]);
1.252 albertel 1026: }
1.479 raeburn 1027:
1028: ($status,$accessmsg,my $slot_name,my $slot) =
1029: &Apache::lonhomework::check_slot_access('0','problem');
1030: push (@Apache::inputtags::status,$status);
1031:
1.159 albertel 1032: #handle rand seed in construction space
1.479 raeburn 1033: my $rndseed=&setup_rndseed($safeeval,$target);
1.367 albertel 1034: my ($symb)=&Apache::lonnet::whichuser();
1.479 raeburn 1035:
1.333 albertel 1036: if ($env{'request.state'} ne "construct" &&
1037: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1038: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1039: $rndseed.'" />'.
1040: '<input type="submit" name="resetdata"
1041: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1042: if (exists($env{'form.username'})) {
1043: $form_tag_start.=
1.164 albertel 1044: '<input type="hidden" name="username"
1.284 albertel 1045: value="'.$env{'form.username'}.'" />';
1.334 albertel 1046: }
1.462 raeburn 1047: if ($env{'request.role.adv'}) {
1048: $form_tag_start.= ' <label class="LC_nobreak">'
1049: .'<input type="checkbox" name="showallfoils"';
1050: if (defined($env{'form.showallfoils'})) {
1051: $form_tag_start.=' checked="checked"';
1052: }
1053: $form_tag_start.= ' /> '
1054: .&mt('Show All Foils')
1055: .'</label>';
1056: }
1.417 www 1057: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1058: $form_tag_start.=&practice_problem_header();
1.417 www 1059: }
1.462 raeburn 1060: $form_tag_start.='<hr />';
1.479 raeburn 1061: } elsif (($env{'request.state'} ne "construct") &&
1062: ($Apache::lonhomework::type eq 'randomizetry') &&
1063: ($status eq 'CAN_ANSWER')) {
1064: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1065: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1066: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1067: }
1.324 albertel 1068:
1.159 albertel 1069: my $expression='$external::datestatus="'.$status.'";';
1070: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1071: &Apache::run::run($expression,$safeeval);
1072: &Apache::lonxml::debug("Got $status");
1.324 albertel 1073:
1.159 albertel 1074: if (( $status eq 'CLOSED' ) ||
1075: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1076: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1077: ( $status eq 'BANNED') ||
1.216 albertel 1078: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1079: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 1080: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1081: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1082: $style);
1.159 albertel 1083: if ( $target eq "web" ) {
1.343 albertel 1084: my $msg;
1.159 albertel 1085: if ($status eq 'UNAVAILABLE') {
1.245 albertel 1086: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.441 raeburn 1087: } elsif ($status eq 'NOT_IN_A_SLOT') {
1088: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.253 albertel 1089: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 1090: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 1091: }
1.216 albertel 1092: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1093: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1094: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1095: $msg.=&checkout_msg();
1.252 albertel 1096: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1097: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1098: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1099: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.159 albertel 1100: }
1101: $result.=$msg.'<br />';
1102: } elsif ($target eq 'tex') {
1.332 albertel 1103: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1104: : '\begin{minipage}{\textwidth}';
1.443 foxr 1105: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1106: $startminipage.'\vskip 0 mm';
1.159 albertel 1107: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1108: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1109: } else {
1.211 albertel 1110: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1111: }
1112: }
1.324 albertel 1113: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1114: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1115: $style);
1.324 albertel 1116: if ($target eq 'web') {
1.375 albertel 1117: $result .=
1118: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1119: } elsif ($target eq 'grade') {
1120: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1121: 'problem');
1122: }
1.159 albertel 1123: } elsif ($target eq 'web') {
1.360 albertel 1124: if ($status eq 'CAN_ANSWER'
1125: && $slot_name ne ''
1126: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
1127: # unproctored slot access, self checkin
1128: &Apache::bridgetask::check_in('problem',undef,undef,
1129: $slot_name);
1130: }
1.368 albertel 1131: $result.="\n $form_tag_start \t".
1.227 albertel 1132: '<input type="hidden" name="submitted" value="yes" />';
1133: # create a page header and exit
1.284 albertel 1134: if ($env{'request.state'} eq "construct") {
1135: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1136: if ($Apache::lonhomework::type eq 'practice') {
1137: $result.= '<input type="submit" name="resetdata" '.
1138: 'value="'.&mt('New Problem Variation').'" />'.
1139: &practice_problem_header().'<hr />';
1140: }
1.227 albertel 1141: }
1142: # if we are viewing someone else preserve that info
1.284 albertel 1143: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1144: foreach my $field ('symb','courseid','domain','username') {
1145: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1146: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1147: }
1.479 raeburn 1148: foreach my $field ('trial','questiontype') {
1149: if ($env{"form.grade_$field"} ne '') {
1150: $result .= '<input type="hidden" name="grade_'.$field.
1151: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1152: }
1153: }
1.159 albertel 1154: }
1155: } elsif ($target eq 'tex') {
1.319 foxr 1156: $result .= 'INSERTTEXFRONTMATTERHERE';
1157:
1.99 sakharuk 1158: }
1.159 albertel 1159: } elsif ($target eq 'edit') {
1.343 albertel 1160: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1161: $Apache::lonxml::warnings_error_header=
1162: &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 1163: my $temp=&Apache::edit::insertlist($target,$token);
1164: $result.=$temp;
1165: } elsif ($target eq 'modified') {
1166: $result=$token->[4];
1167: } else {
1168: # page_start returned a starting result, delete it if we don't need it
1169: $result = '';
1.99 sakharuk 1170: }
1.159 albertel 1171: return $result;
1.9 albertel 1172: }
1173:
1174: sub end_problem {
1.159 albertel 1175: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1176: my $result;
1.310 foxr 1177:
1.321 albertel 1178: if (!$Apache::lonxml::metamode) {
1179: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1180: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1181: }
1.319 foxr 1182:
1183: if ($target eq 'tex') {
1.321 albertel 1184: # Figure out the front matter and replace the
1185: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1186: # this in end_problem because whether or not we display due
1187: # dates depends on whether due dates have already been
1188: # displayed in the problem parts.
1189:
1.319 foxr 1190: my $frontmatter = '';
1191: my $startminipage = '';
1192: if (not $env{'form.problem_split'}=~/yes/) {
1193: $startminipage = '\begin{minipage}{\textwidth}';
1194: }
1195: my $id = $Apache::inputtags::part;
1196: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1197: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1198: my @packages = split /,/,$packages;
1199: my $allow_print_points = 0;
1200: foreach my $partial_key (@packages) {
1201: if ($partial_key=~m/^part_0$/) {
1202: $allow_print_points=1;
1203: }
1204: }
1205: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1206: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1207: if (lc($env{'course.'.$env{'request.course.id'}.
1208: '.disableexampointprint'}) eq 'yes') {
1209: $allow_print_points=0;
1210: }
1211: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1212: 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 1213: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1214: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1215:
1216: # Figure out what the due date is and if we need to print
1217: # it in the problem header. We have been logging the
1218: # last due date written to file.
1219:
1220: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1221: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1222: my $duedate_text = &mt('Due date: [_1]'
1223: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1224: my $temp_file;
1225: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1226:
1227: # Figure out what the last printed due date is or set it
1228: # to the epoch if no duedates have been printed.
1229:
1230: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1231: if (-e $filename) {
1232: $temp_file = Apache::File->new($filename);
1233: my @due_file = <$temp_file>;
1234: $due_file_content = $due_file[$#due_file];
1235: chomp $due_file_content;
1236: }
1237:
1238: # We display the due date iff it is not the same as the last
1239: # duedate in problem header ($due_file_content), and
1240: # none of our parts displayed a duedate.
1241: #
1242: my $parts_with_displayduedate;
1243: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1244: $parts_with_displayduedate =
1245: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1246: } else {
1247: $parts_with_displayduedate = 0;
1248: }
1249: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1250: $temp_file = Apache::File->new('>'.$filename);
1251: print $temp_file "$duetime\n";
1252: if (not $env{'request.symb'} =~ m/\.page_/) {
1253: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1254: $frontmatter .= $begin_doc.
1.448 bisitz 1255: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1256: } else {
1257: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1258: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1259: $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
1260: }
1.319 foxr 1261: }
1262: } else {
1.448 bisitz 1263: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1264: }
1265: } else {
1266: if (not $env{'request.symb'} =~ m/\.page_/) {
1267: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1268: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1269: $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
1270: }
1.319 foxr 1271: } else {
1.381 albertel 1272: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1273: }
1274: }
1275: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1276: }
1277:
1.159 albertel 1278: my $status=$Apache::inputtags::status['-1'];
1279: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1280: $target eq 'tex') {
1.249 albertel 1281: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1282: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1283: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1284: &Apache::inputtags::grade;
1.324 albertel 1285: } elsif ($status eq 'NEEDS_CHECKIN') {
1286: # no need to grade, and don't want to hide data
1.249 albertel 1287: } else {
1288: # move any submission data to .hidden
1289: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1290: }
1.159 albertel 1291: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1292: $Apache::inputtags::part eq '0' &&
1.252 albertel 1293: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 1294: # if part is zero, no <part>s existed, so we need show the current
1295: # grading status
1296: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1297: $result.= $gradestatus;
1298: }
1299: if (
1.284 albertel 1300: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1301: ($target eq 'answer') || ($target eq 'tex')
1302: ) {
1.227 albertel 1303: if ($target ne 'tex' &&
1.284 albertel 1304: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 1305: $result.="</form>";
1.159 albertel 1306: }
1307: if ($target eq 'web') {
1.346 albertel 1308: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1309: } elsif ($target eq 'tex') {
1.178 sakharuk 1310: my $endminipage = '';
1.284 albertel 1311: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1312: $endminipage = '\end{minipage}';
1313: }
1.284 albertel 1314: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1315: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1316: } else {
1.262 sakharuk 1317: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1318: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1319: $result .= $endminipage.'\end{document} ';
1320: } else {
1.382 albertel 1321: $result .= $endminipage;
1.262 sakharuk 1322: }
1.159 albertel 1323: }
1324: }
1325: }
1.476 www 1326: if ($target eq 'web') {
1327: $result.=&Apache::functionplotresponse::init_script();
1328: }
1.159 albertel 1329: if ($target eq 'grade') {
1330: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1331: &finalize_storage();
1332: }
1.284 albertel 1333: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1334: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1335: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1336: # normally we get it from above, but in CSTR
1.172 albertel 1337: # we always show answer mode too.
1.159 albertel 1338: }
1339: } elsif ($target eq 'meta') {
1340: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1341: @Apache::inputtags::response=();
1.159 albertel 1342: $result=&Apache::response::mandatory_part_meta;
1343: }
1.215 albertel 1344: $result.=&Apache::response::meta_part_order();
1.258 albertel 1345: $result.=&Apache::response::meta_response_order();
1.159 albertel 1346: } elsif ($target eq 'edit') {
1347: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1348: $result .= &problem_edit_footer();
1.320 albertel 1349: } elsif ($target eq 'modified') {
1350: $result .= $token->[2];
1.159 albertel 1351: }
1.155 albertel 1352:
1.284 albertel 1353: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1354: &Apache::inputtags::check_for_duplicate_ids();
1355: }
1.204 albertel 1356:
1357: &reset_problem_globals('problem');
1.159 albertel 1358:
1359: return $result;
1.48 albertel 1360: }
1361:
1.108 albertel 1362:
1.48 albertel 1363: sub start_library {
1.159 albertel 1364: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1365: my ($result,$form_tag_start);
1.371 albertel 1366: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1367: &init_problem_globals('library');
1368: $Apache::lonhomework::type='problem';
1369: }
1.159 albertel 1370: if ($target eq 'edit') {
1.343 albertel 1371: ($result,$form_tag_start)=
1372: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1373: 'Edit');
1374: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1375: my $temp=&Apache::edit::insertlist($target,$token);
1376: $result.=$temp;
1377: } elsif ($target eq 'modified') {
1378: $result=$token->[4];
1.340 albertel 1379: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1380: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1381: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1382: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1383: ($result,$form_tag_start)=
1384: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1385: $name);
1.479 raeburn 1386: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 1387: $result.=" \n $form_tag_start".
1.159 albertel 1388: '<input type="hidden" name="submitted" value="yes" />';
1389: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1390: if ($Apache::lonhomework::type eq 'practice') {
1391: $result.= '<input type="submit" name="resetdata" '.
1392: 'value="'.&mt('New Problem Variation').'" />'.
1393: &practice_problem_header().'<hr />';
1394: }
1.159 albertel 1395: }
1396: return $result;
1.48 albertel 1397: }
1398:
1399: sub end_library {
1.159 albertel 1400: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1401: my $result='';
1402: if ($target eq 'edit') {
1403: $result=&problem_edit_footer();
1.371 albertel 1404: } elsif ($target eq 'web'
1405: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1406: && $env{'request.state'} eq "construct") {
1.349 albertel 1407: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1408: }
1.371 albertel 1409: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1410: &reset_problem_globals('library');
1411: }
1.159 albertel 1412: return $result;
1.197 www 1413: }
1414:
1415: sub start_definetag {
1.326 albertel 1416: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1417:
1418: my $result;
1419:
1420: my $name = $token->[2]->{'name'};
1.326 albertel 1421: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1422: if ($target eq 'web') {
1423: if ($name=~/^\//) {
1424: $result=
1425: '<br /><table class="LC_sty_end"><tr><th>'.
1426: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1427: } else {
1428: $result=
1429: '<br /><table class="LC_sty_begin"><tr><th>'.
1430: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1431: }
1432: $skip = &HTML::Entities::encode($skip, '<>&"');
1433: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1434: }
1435: return $result;
1436: }
1437:
1438: sub end_definetag {
1439: return '';
1.1 albertel 1440: }
1441:
1442: sub start_block {
1.201 albertel 1443: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1444:
1445: my $result;
1.1 albertel 1446:
1.339 albertel 1447: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1448: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1449: my $code = $token->[2]->{'condition'};
1.385 albertel 1450: if (defined($code) && $code ne '') {
1.137 albertel 1451: if (!$Apache::lonxml::default_homework_loaded) {
1452: &Apache::lonxml::default_homework_load($safeeval);
1453: }
1.131 albertel 1454: $result = &Apache::run::run($code,$safeeval);
1455: &Apache::lonxml::debug("block :$code: returned :$result:");
1456: } else {
1457: $result='1';
1458: }
1459: if ( ! $result ) {
1.201 albertel 1460: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1461: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1462: }
1463: $result='';
1464: } elsif ($target eq 'edit') {
1465: $result .=&Apache::edit::tag_start($target,$token);
1466: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1467: $token,40);
1468: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1469: } elsif ($target eq 'modified') {
1470: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1471: $safeeval,'condition');
1472: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1473: }
1.131 albertel 1474: return $result;
1.1 albertel 1475: }
1476:
1477: sub end_block {
1.167 www 1478: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1479: my $result;
1480: if ($target eq "edit") {
1481: $result.= &Apache::edit::tag_end($target,$token,'');
1482: }
1483: return $result;
1484: }
1485:
1486: sub start_languageblock {
1.201 albertel 1487: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1488:
1489: my $result;
1490:
1.339 albertel 1491: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1492: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1493: my $include = $token->[2]->{'include'};
1494: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1495: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.394 www 1496: # This should not even happen, since we should at least have the server language
1.398 www 1497: if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
1498: # Now loop over all languages in order of preference
1499: foreach my $preferred_language (@preferred_languages) {
1.394 www 1500: # If the languageblock has no arguments, show the contents
1.399 www 1501: $result=1;
1502: my $found=0;
1.394 www 1503: # Do we have an include argument?
1.398 www 1504: if ($include) {
1.394 www 1505: # If include is specified, by default, don't render the block
1.399 www 1506: $result=0;
1.398 www 1507: foreach my $included_language (split(/\,/,$include)) {
1.394 www 1508: # ... but if my preferred language is included, render it
1.398 www 1509: if ($included_language eq $preferred_language) {
1.399 www 1510: $result=1;
1511: $found=1;
1.398 www 1512: }
1513: }
1514: }
1.394 www 1515: # Do we have an exclude argument?
1.398 www 1516: if ($exclude) {
1.399 www 1517: $result=1;
1.398 www 1518: foreach my $excluded_language (split(/\,/,$exclude)) {
1519: if ($excluded_language eq $preferred_language) {
1.399 www 1520: $result=0;
1521: $found=1;
1.398 www 1522: }
1523: }
1524: }
1.399 www 1525: if ($found) { last; }
1.398 www 1526: }
1.201 albertel 1527: if ( ! $result ) {
1528: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1529: $style);
1530: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1531: }
1532: $result='';
1.167 www 1533: } elsif ($target eq 'edit') {
1534: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1535: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1536: $token,40);
1.211 albertel 1537: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1538: $token,40);
1539: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1540: } elsif ($target eq 'modified') {
1541: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1542: $safeeval,'include',
1543: 'exclude');
1.167 www 1544: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1545: }
1546: return $result;
1547: }
1548:
1549: sub end_languageblock {
1.170 www 1550: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1551: my $result;
1.201 albertel 1552: if ($target eq "edit") {
1.170 www 1553: $result.= &Apache::edit::tag_end($target,$token,'');
1554: }
1555: return $result;
1556: }
1557:
1.397 albertel 1558: {
1559: my %available_texts;
1560: sub start_translated {
1561: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1562: &Apache::lonxml::register('Apache::structuretags',('lang'));
1563: undef(%available_texts);
1564: }
1565:
1566: sub end_translated {
1567: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1568: my $result;
1569: #show the translation on viewable targets
1570: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1571: # or non-viewable targets, if it's embedded in something that
1572: # wants the output
1573: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1574: && &Apache::lonxml::in_redirection() ) ) {
1575: my @possibilities = keys(%available_texts);
1576: my $which =
1577: &Apache::loncommon::languages(\@possibilities) || 'default';
1578: $result = $available_texts{$which};
1579: }
1580: undef(%available_texts);
1581: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1582: return $result;
1583: }
1584:
1585:
1586: sub start_lang {
1587: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1588: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1589: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1590: &Apache::lonxml::startredirection();
1591: }
1592: return '';
1593: }
1594:
1595: sub end_lang {
1596: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1597: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1598: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1599: my $result = &Apache::lonxml::endredirection();
1600: my $which = &Apache::lonxml::get_param('which',$parstack,
1601: $safeeval);
1.431 raeburn 1602: if ($which=~/\w/) {
1603: $available_texts{$which} = $result;
1604: }
1605: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
1606: $safeeval);
1607: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
1608: if ($language=~/\w/) {
1609: $available_texts{$language} = $result;
1610: }
1.427 bisitz 1611: }
1612:
1.397 albertel 1613: }
1614: return '';
1615: }
1616: }
1617:
1.170 www 1618: sub start_instructorcomment {
1.201 albertel 1619: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1620:
1621: my $result;
1622:
1.339 albertel 1623: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1624: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 1625: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 1626: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1627: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1628: $parser,$style);
1.170 www 1629: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1630: }
1631: $result='';
1632: } elsif ($target eq 'edit') {
1633: $result .=&Apache::edit::tag_start($target,$token);
1634: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1635: }
1636: return $result;
1637: }
1638:
1639: sub end_instructorcomment {
1.159 albertel 1640: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1641: my $result;
1642: if ($target eq "edit") {
1643: $result.= &Apache::edit::tag_end($target,$token,'');
1644: }
1645: return $result;
1.4 tsai 1646: }
1647:
1648: sub start_while {
1.326 albertel 1649: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1650:
1.160 albertel 1651: my $result;
1.339 albertel 1652: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1653: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1654: my $code = $token->[2]->{'condition'};
1.4 tsai 1655:
1.160 albertel 1656: push( @Apache::structuretags::whileconds, $code);
1657: if (!$Apache::lonxml::default_homework_loaded) {
1658: &Apache::lonxml::default_homework_load($safeeval);
1659: }
1660: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1661: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1662: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1663: push( @Apache::structuretags::whileline, $token->[5]);
1664: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1665: if ( $result ) {
1666: &Apache::lonxml::newparser($parser,\$bodytext);
1667: }
1668: } elsif ($target eq 'edit') {
1669: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1670: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1671: $token,40);
1672: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1673: } elsif ($target eq 'modified') {
1674: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1675: $safeeval,'condition');
1676: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1677: }
1.160 albertel 1678: return $result;
1.4 tsai 1679: }
1680:
1681: sub end_while {
1.159 albertel 1682: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1683: my $result;
1684:
1.339 albertel 1685: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1686: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1687: my $code = pop(@Apache::structuretags::whileconds);
1688: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1689: my $line = pop(@Apache::structuretags::whileline);
1690: my $return = &Apache::run::run($code,$safeeval);
1691: my $starttime=time;
1692: my $error=0;
1693: while ($return) {
1694: if (time-$starttime >
1695: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1696: $return = 0; $error=1; next;
1.161 albertel 1697: }
1698: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1699: if ($target eq 'grade' || $target eq 'answer' ||
1700: $target eq 'analyze') {
1701: # grade/answer/analyze should produce no output but if we
1702: # are redirecting, the redirecter should know what to do
1703: # with the output
1704: if (!$Apache::lonxml::redirection) { undef($result); }
1705: }
1.161 albertel 1706: $return = &Apache::run::run($code,$safeeval);
1707: }
1708: if ($error) {
1.430 bisitz 1709: &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 1710: }
1711: } elsif ($target eq "edit") {
1712: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1713: }
1.160 albertel 1714: return $result;
1.1 albertel 1715: }
1.6 tsai 1716:
1.160 albertel 1717: # <randomlist show="1">
1.6 tsai 1718: # <tag1>..</tag1>
1719: # <tag2>..</tag2>
1720: # <tag3>..</tag3>
1.160 albertel 1721: # ...
1.6 tsai 1722: # </randomlist>
1723: sub start_randomlist {
1.326 albertel 1724: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1725: my $result;
1.339 albertel 1726: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1727: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1728: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1729: my $b_parser= HTML::LCParser->new(\$body);
1730: $b_parser->xml_mode(1);
1731: $b_parser->marked_sections(1);
1.159 albertel 1732: my $b_tok;
1733: my @randomlist;
1734: my $list_item;
1735: while($b_tok = $b_parser->get_token() ) {
1736: if($b_tok->[0] eq 'S') { # start tag
1737: # get content of the tag until matching end tag
1738: # get all text upto the matching tag
1739: # and push the content into @randomlist
1740: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1741: $b_parser);
1742: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1743: push(@randomlist,$list_item);
1744: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1745: # $list_item</b>";
1746: }
1747: if($b_tok->[0] eq 'T') { # text
1748: # what to do with text in between tags?
1749: # print "<b>TEXT $b_tok->[1]</b><br />";
1750: }
1751: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1752: # print "<b>END-TAG $b_tok->[1]</b><br />";
1753: # }
1754: }
1.303 albertel 1755: if (@randomlist) {
1756: my @idx_arr = (0 .. $#randomlist);
1757: &Apache::structuretags::shuffle(\@idx_arr);
1758: my $bodytext = '';
1759: my $show=$#randomlist;
1760: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1761: $showarg--;
1762: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 1763: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
1764: my @currlist;
1765: my $part = $Apache::inputtags::part;
1766: if ($part ne '') {
1767: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
1768: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
1769: if (!(grep(/^\Q$part\E$/,@currlist))) {
1770: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1771: }
1772: } else {
1773: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1774: }
1775: }
1776: }
1.303 albertel 1777: for(0 .. $show) {
1778: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1779: }
1780: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1781: }
1782: } elsif ($target eq 'edit' ) {
1783: $result .=&Apache::edit::tag_start($target,$token);
1784: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1785: $token,5);
1786: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1787: } elsif ($target eq 'modified' ) {
1788: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1789: $safeeval,'show');
1790: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1791: }
1792: return $result;
1.7 tsai 1793: }
1794:
1795: sub shuffle {
1796: my $a=shift;
1797: my $i;
1.303 albertel 1798: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1799: &Apache::response::pushrandomnumber();
1.159 albertel 1800: for($i=@$a;--$i;) {
1801: my $j=int(&Math::Random::random_uniform() * ($i+1));
1802: next if $i == $j;
1803: @$a[$i,$j] = @$a[$j,$i];
1804: }
1.251 albertel 1805: &Apache::response::poprandomnumber();
1.7 tsai 1806: }
1.6 tsai 1807: }
1808:
1809: sub end_randomlist {
1.159 albertel 1810: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1811: my $result;
1812: if ($target eq 'edit' ) {
1813: $result=&Apache::edit::tag_end($target,$token,
1814: 'End Randomly Parsed Block');
1815: }
1816: return $result;
1.6 tsai 1817: }
1818:
1.283 albertel 1819: sub ordered_show_check {
1820: my $last_part=$Apache::inputtags::partlist[-2];
1821: my $in_order=
1822: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1823: my $in_order_show=1;
1824: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1825: $in_order_show=&Apache::response::check_status($last_part);
1826: }
1827: return $in_order_show;
1828: }
1829:
1.469 www 1830:
1831: sub start_startpartmarker {
1832: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1833: my $result='';
1834: if ($target eq 'edit') {
1835: $result=&Apache::edit::tag_start($target,$token);
1836: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
1837: $result.=&Apache::edit::end_table();
1838:
1839: }
1840: return $result;
1841: }
1842:
1843: sub end_startpartmarker {
1844: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1845: my @result;
1846: if ($target eq 'edit') { $result[1]='no'; }
1847: return @result;
1848: }
1849:
1850: sub start_endpartmarker {
1851: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1852: my $result='';
1853: if ($target eq 'edit') {
1854: $result=&Apache::edit::tag_start($target,$token);
1855: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
1856: $result.=&Apache::edit::end_table();
1857:
1858: }
1859: return $result;
1860: }
1861:
1862: sub end_endpartmarker {
1863: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1864: my @result;
1865: if ($target eq 'edit') { $result[1]='no'; }
1866: return @result;
1867: }
1868:
1869:
1870:
1871:
1872:
1.11 albertel 1873: sub start_part {
1.326 albertel 1874: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1875: if (!$Apache::lonxml::metamode) {
1876: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1877: # duedates.
1878: }
1.159 albertel 1879: my $result='';
1.386 albertel 1880: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1881: $Apache::inputtags::part=$id;
1.177 albertel 1882: push(@Apache::inputtags::partlist,$id);
1883: @Apache::inputtags::response=();
1.159 albertel 1884: @Apache::inputtags::previous=();
1885: @Apache::inputtags::previous_version=();
1.405 albertel 1886: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 1887: &Apache::response::reset_params();
1888:
1.159 albertel 1889: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1890: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1891: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1892: my $in_order_show=&ordered_show_check();
1.214 albertel 1893: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1894: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1895: &Apache::run::run($expression,$safeeval);
1.159 albertel 1896:
1897: if ($target eq 'meta') {
1.224 www 1898: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1899: return &Apache::response::mandatory_part_meta.
1900: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1901: } elsif ($target eq 'web' || $target eq 'grade' ||
1902: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1903: if ($hidden || !$in_order_show) {
1.326 albertel 1904: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1905: } else {
1906: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1907: push (@Apache::inputtags::status,$status);
1908: my $expression='$external::datestatus="'.$status.'";';
1909: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1910: &Apache::run::run($expression,$safeeval);
1.284 albertel 1911: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1912: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1913: }
1.216 albertel 1914: if (( $status eq 'CLOSED' ) ||
1915: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1916: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1917: ( $status eq 'BANNED') ||
1918: ( $status eq 'UNAVAILABLE') ||
1919: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1920: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1921: $style);
1.159 albertel 1922: if ( $target eq "web" ) {
1.211 albertel 1923: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1924: } elsif ( $target eq 'tex' ) {
1.284 albertel 1925: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1926: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1927: } else {
1.211 albertel 1928: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1929: }
1.159 albertel 1930: }
1931: } else {
1932: if ($target eq 'tex') {
1.284 albertel 1933: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1934: if ($$tagstack[-2] eq 'td') {
1.388 foxr 1935: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1936: } else {
1937: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1938: }
1.195 sakharuk 1939: }
1.159 albertel 1940: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1941: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1942: my @allkeys = split /,/,$allkeys;
1943: my $allow_print_points = 0;
1944: foreach my $partial_key (@allkeys) {
1.230 albertel 1945: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1946: if ($1 ne '0') {$allow_print_points=1;}
1947: }
1948: }
1.275 albertel 1949: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1950: if (defined($maxtries) && $maxtries < 0) {
1951: $allow_print_points=0;
1952: }
1.302 albertel 1953: if (lc($env{'course.'.$env{'request.course.id'}.
1954: '.disableexampointprint'}) eq 'yes') {
1955: $allow_print_points=0;
1956: }
1.463 foxr 1957: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1958: $result .= '\vskip 10mm\fbox{\textit{'.$weight.' pt}}';
1959:
1960: }
1.233 www 1961: } elsif ($target eq 'web') {
1.479 raeburn 1962: if ($status eq 'CAN_ANSWER') {
1963: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1964: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
1965: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
1966: my $num = scalar(@Apache::inputtags::partlist)-1;
1967: if ($probrandomize eq 'randomizetry') {
1968: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
1969: $result .= &randomizetry_part_header($problemstatus,'none',$num);
1970: } else {
1971: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1972: if ($probrandtries ne $reqtries) {
1973: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
1974: }
1975: }
1976: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
1977: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1978: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
1979: }
1980: }
1.475 raeburn 1981: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 1982: }
1983: }
1984: }
1985: } elsif ($target eq 'edit') {
1986: $result.=&Apache::edit::tag_start($target,$token);
1987: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1988: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1989: ' '.
1990: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1991: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1992: } elsif ($target eq 'modified') {
1993: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1994: $safeeval,'id','display');
1.159 albertel 1995: if ($constructtag) {
1.225 albertel 1996: #limiting ids to only letters numbers, and space
1.224 www 1997: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1998: $result = &Apache::edit::rebuild_tag($token);
1999: }
2000: }
2001: return $result;
1.11 albertel 2002: }
2003:
2004: sub end_part {
1.159 albertel 2005: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2006: &Apache::lonxml::debug("in end_part $target ");
2007: my $status=$Apache::inputtags::status['-1'];
2008: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2009: my $in_order_show=&ordered_show_check();
1.321 albertel 2010: my $result;
2011: if (!$Apache::lonxml::metamode) {
2012: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2013: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2014: }
1.312 albertel 2015: if ($target eq 'grade') {
1.249 albertel 2016: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2017: !$hidden && $in_order_show) {
1.311 foxr 2018: $result.=&Apache::inputtags::grade;
1.249 albertel 2019: } else {
2020: # move any submission data to .hidden
2021: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2022: }
1.283 albertel 2023: } elsif (($target eq 'web' || $target eq 'tex') &&
2024: !$hidden && $in_order_show) {
1.159 albertel 2025: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2026: $target);
1.212 albertel 2027: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
2028: $gradestatus='';
2029: }
1.311 foxr 2030: $result.=$gradestatus;
1.265 sakharuk 2031: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2032: } elsif ($target eq 'edit') {
1.311 foxr 2033: $result.=&Apache::edit::end_table();
1.322 albertel 2034: } elsif ($target eq 'modified') {
2035: $result .= $token->[2];
1.159 albertel 2036: }
2037: pop @Apache::inputtags::status;
2038: $Apache::inputtags::part='';
1.295 albertel 2039: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2040: return $result;
1.11 albertel 2041: }
1.1 albertel 2042:
1.25 albertel 2043: sub start_preduedate {
1.326 albertel 2044: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2045: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2046: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2047: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2048: if (!$Apache::lonhomework::scantronmode &&
2049: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2050: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2051: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2052: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2053: }
1.24 albertel 2054: }
1.159 albertel 2055: return '';
1.24 albertel 2056: }
2057:
1.25 albertel 2058: sub end_preduedate {
1.159 albertel 2059: return '';
1.24 albertel 2060: }
2061:
1.369 foxr 2062: # In all the modes where <postanswerdate> text is
2063: # displayable, all we do is eat up the text between the start/stop
2064: # tags if the conditions are not right to display it.
1.25 albertel 2065: sub start_postanswerdate {
1.326 albertel 2066: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2067: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2068: &Apache::lonnet::allowed('pav',
2069: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2070: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2071: $target eq 'tex' ) {
1.300 albertel 2072: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2073: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2074: (($target eq 'tex') && !$pav)) {
1.326 albertel 2075: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2076: }
2077: }
2078: return '';
1.24 albertel 2079: }
2080:
1.25 albertel 2081: sub end_postanswerdate {
1.159 albertel 2082: return '';
1.24 albertel 2083: }
2084:
1.25 albertel 2085: sub start_notsolved {
1.326 albertel 2086: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2087: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2088: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2089: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2090: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2091: if ($gradestatus =~ /^correct/ &&
2092: &Apache::response::show_answer()) {
1.159 albertel 2093: &Apache::lonxml::debug("skipping");
1.326 albertel 2094: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2095: }
1.24 albertel 2096: }
1.159 albertel 2097: return '';
1.24 albertel 2098: }
2099:
1.25 albertel 2100: sub end_notsolved {
1.159 albertel 2101: return '';
1.24 albertel 2102: }
2103:
2104: sub start_solved {
1.326 albertel 2105: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2106: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2107: $target eq 'tex') {
2108: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2109: if ($gradestatus !~ /^correct/ ||
2110: !&Apache::response::show_answer()) {
1.326 albertel 2111: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2112: }
1.24 albertel 2113: }
1.159 albertel 2114: return '';
1.24 albertel 2115: }
2116:
2117: sub end_solved {
1.248 albertel 2118: return '';
2119: }
2120:
2121: sub start_problemtype {
1.326 albertel 2122: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2123: my $result;
1.339 albertel 2124: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2125: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2126: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2127: if (!defined($mode)) { $mode='show'; }
2128: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2129: my $found=0;
2130: foreach my $type (split(',',$for)) {
2131: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2132: }
2133: if ($mode eq 'show' && !$found) {
1.326 albertel 2134: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2135: }
2136: if ($mode eq 'hide' && $found) {
1.326 albertel 2137: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2138: }
2139: } elsif ($target eq 'edit') {
2140: $result .=&Apache::edit::tag_start($target,$token);
2141: $result.=&Apache::edit::select_arg('Mode:','mode',
2142: [['show','Show'],
2143: ['hide','Hide']]
2144: ,$token);
2145: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
2146: [ ['exam','Exam/Quiz Problem'],
2147: ['survey','Survey'],
1.465 raeburn 2148: ['surveycred','Survey (with credit)'],
2149: ['anonsurvey','Anonymous Survey'],
2150: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2151: ['problem','Homework Problem'],
1.479 raeburn 2152: ['practice','Practice Problem'],
2153: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2154: ,$token);
2155: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2156: } elsif ($target eq 'modified') {
2157: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2158: $safeeval,'mode','for');
2159: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2160: }
2161: return $result;
2162: }
2163:
2164: sub end_problemtype {
1.159 albertel 2165: return '';
1.24 albertel 2166: }
1.34 albertel 2167:
2168: sub start_startouttext {
1.159 albertel 2169: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2170: my @result=(''.'');
2171: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2172:
2173: my $nesting =
2174: &Apache::lonxml::set_state('outtext',
2175: &Apache::lonxml::get_state('outtext')+1);
2176: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2177: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2178: }
1.159 albertel 2179: return (@result);
1.34 albertel 2180: }
1.159 albertel 2181:
1.34 albertel 2182: sub end_startouttext {
1.326 albertel 2183: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2184: my $result='';
2185: my $text='';
2186: if ($target eq 'edit') {
1.424 foxr 2187: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2188: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 2189: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 2190: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2191: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 2192: .'</span></td>'
2193: .'<td align="left"><span id="math_'.$areaid.'" />'
2194: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
2195: .'<span></td>'
2196: .'<td>'
2197: .&Apache::edit::insertlist($target,$token)
2198: .'</td>'
2199: .'<td align="right" valign="top">' .
2200: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2201: &Apache::edit::end_row().
1.362 albertel 2202: &Apache::edit::start_spanning_row()."\n".
1.255 www 2203: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2204: }
2205: if ($target eq 'modified') {
1.219 albertel 2206: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2207: }
2208: if ($target eq 'tex') {
2209: $result .= '\noindent ';
2210: }
2211: return $result;
1.34 albertel 2212: }
1.159 albertel 2213:
1.34 albertel 2214: sub start_endouttext {
1.159 albertel 2215: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2216: my $result='';
2217: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2218: if ($target eq "modified") {
2219: $result='<endouttext />'.
1.377 albertel 2220: &Apache::edit::handle_insertafter('startouttext');
2221: }
1.404 albertel 2222:
2223: my $nesting =
2224: &Apache::lonxml::set_state('outtext',
2225: &Apache::lonxml::get_state('outtext')-1);
2226: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2227: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2228: &Apache::lonxml::set_state('outtext', 0);
2229: }
1.159 albertel 2230: return $result;
1.34 albertel 2231: }
1.159 albertel 2232:
1.34 albertel 2233: sub end_endouttext {
1.159 albertel 2234: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2235: my @result=('','');
2236: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2237: return (@result);
1.34 albertel 2238: }
1.159 albertel 2239:
1.45 albertel 2240: sub delete_startouttext {
1.326 albertel 2241: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2242: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2243: my $text=$$parser['-1']->get_text("/endouttext");
2244: my $ntoken=$$parser['-1']->get_token();
2245: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2246: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2247: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2248: # they did the last time round
2249: &Apache::lonxml::increasedepth($ntoken);
2250: &Apache::lonxml::decreasedepth($ntoken);
2251: return 1;
1.193 www 2252: }
2253:
2254: sub start_simpleeditbutton {
2255: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2256: my $result='';
1.284 albertel 2257: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2258: ($target eq 'web') &&
1.330 albertel 2259: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2260: my $url=$env{'request.noversionuri'};
1.193 www 2261: $url=~s/\?.*$//;
1.367 albertel 2262: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 2263: # Warning makes more sense and is more important on edit screen
1.442 bisitz 2264: # $result='<p class="LC_warning">'
2265: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2266: # .&Apache::loncommon::help_open_topic('Caching')
2267: # .'</p>';
1.451 bisitz 2268: $result.=&Apache::lonhtmlcommon::start_funclist()
2269: .&Apache::lonhtmlcommon::add_item_funclist(
2270: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
2271: .&mt('Edit').'</a>')
2272: .&Apache::lonhtmlcommon::end_funclist();
1.442 bisitz 2273:
1.193 www 2274: }
2275: return $result;
2276: }
2277:
2278: sub end_simpleeditbutton {
2279: return '';
1.45 albertel 2280: }
1.34 albertel 2281:
1.428 raeburn 2282: sub practice_problem_header {
2283: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2284: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2285: '</span>';
2286: }
2287:
1.479 raeburn 2288: sub randomizetry_problem_header {
2289: my ($problemstatus,$reqtries) = @_;
2290: my ($header,$text);
2291: if ($reqtries > 1) {
2292: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
2293: if (($problemstatus eq 'no') ||
2294: ($problemstatus eq 'no_feedback_ever')) {
2295: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2296: } else {
2297: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2298: }
2299: } else {
2300: $header = &mt('New Problem Variation Each Try');
2301: if (($problemstatus eq 'no') ||
2302: ($problemstatus eq 'no_feedback_ever')) {
2303: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
2304:
2305: } else {
2306: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
2307: }
2308: }
2309: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
2310: '<span class="LC_info">'.$text.'</span><hr />';
2311: }
2312:
2313: sub randomizetry_part_header {
2314: my ($problemstatus,$reqtries,$num) = @_;
2315: my ($header,$text);
2316: if ($reqtries eq 'none') {
2317: $header = &mt('No Question Variation');
2318: $text = &mt('For this question there will no new variation after a try.');
2319: } elsif ($reqtries > 1) {
2320: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
2321: if (($problemstatus eq 'no') ||
2322: ($problemstatus eq 'no_feedback_ever')) {
2323: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2324: } else {
2325: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2326: }
2327: } else {
2328: $header = &mt('New Question Variation For Each Try');
2329: if (($problemstatus eq 'no') ||
2330: ($problemstatus eq 'no_feedback_ever')) {
2331: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
2332: } else {
2333: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
2334: }
2335: }
2336: my $output;
2337: if ($num > 1) {
2338: $output .= '<hr />';
2339: }
2340: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
2341: '<span class="LC_info">'.$text.'</span><br /><br />';
2342: return $output;
2343: }
2344:
1.1 albertel 2345: 1;
2346: __END__
1.435 jms 2347:
2348: =pod
2349:
2350: =back
2351:
2352: =cut
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