Annotation of loncom/homework/structuretags.pm, revision 1.465.2.9
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.465.2.9! raeburn 4: # $Id: structuretags.pm,v 1.465.2.8 2010/12/20 21:40:55 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 {
1.465.2.2 raeburn 69: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','translated','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startpartmarker','startouttext','endpartmarker','endouttext','simpleeditbutton','definetag'));
1.10 albertel 70: }
71:
72: sub start_web {
1.326 albertel 73: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 74: if ($target ne 'edit' && $target ne 'modified') {
75: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
76: if ($target eq 'web' || $target eq 'webgrade') {
77: return $bodytext;
78: }
79: } elsif ($target eq "edit" ) {
80: my $bodytext =
81: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
82: my $result = &Apache::edit::tag_start($target,$token);
83: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
84: return $result;
85: } elsif ( $target eq "modified" ) {
86: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 87: }
88: return '';
1.10 albertel 89: }
90:
91: sub end_web {
1.44 ng 92: return '';
1.10 albertel 93: }
94:
95: sub start_tex {
1.326 albertel 96: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 97: my $result='';
1.383 albertel 98: if ($target ne 'edit' && $target ne 'modified') {
99: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
100: if ($target eq 'tex') {
1.434 foxr 101:
102: # If inside a table, occurrences of \\ must be removed;
103: # else the table blows up.
104:
105: if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
106: $bodytext =~ s/\\\\//g;
107: }
1.432 foxr 108: return $bodytext.'{}';
1.383 albertel 109: }
110: } elsif ($target eq "edit" ) {
111: my $bodytext =
112: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
113: my $result = &Apache::edit::tag_start($target,$token);
114: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
115: return $result;
116: } elsif ( $target eq "modified" ) {
117: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 118: }
1.198 sakharuk 119: return $result;;
1.10 albertel 120: }
121:
122: sub end_tex {
1.44 ng 123: return '';
1.9 albertel 124: }
125:
1.400 albertel 126: sub homework_js {
127: return &Apache::loncommon::resize_textarea_js().
1.416 raeburn 128: &setmode_javascript().
1.400 albertel 129: <<'JS';
130: <script type="text/javascript">
1.465.2.9! raeburn 131: // <![CDATA[
1.400 albertel 132: function setSubmittedPart (part) {
133: this.document.lonhomework.submitted.value="part_"+part;
134: }
135:
136: function image_response_click (which, e) {
137: init_geometry();
138: if (!e) { e = window.event; } //IE
139: var input_element = document.lonhomework.elements[which];
1.401 albertel 140: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 141: var token = token_element.value;
1.401 albertel 142: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 143: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
144: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
145: var click = x+':'+y;
146: input_element.value = click;
1.465.2.9! raeburn 147: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
1.400 albertel 148: }
1.465.2.9! raeburn 149: // ]]>
1.400 albertel 150: </script>
151: JS
152: }
153:
1.416 raeburn 154: sub setmode_javascript {
155: return <<"ENDSCRIPT";
156: <script type="text/javascript">
157: function setmode(form,probmode) {
158: form.problemmode.value = probmode;
159: form.submit();
160: }
161: </script>
162: ENDSCRIPT
163: }
164:
1.465.2.6 raeburn 165: sub file_delchk_js {
166: my $delfilewarn = &mt('You have indicated you wish to delete some files previously included for submission.').'\\n'.
167: &mt('Deleted files will not be graded.').' '.
168: &mt('Submit Answer?');
169: return <<"ENDSCRIPT";
170: <script type="text/javascript">
1.465.2.9! raeburn 171: // <![CDATA[
1.465.2.6 raeburn 172: function file_deletion_check(formname) {
173: var elemnum = formname.elements.length;
174: if (elemnum == 0) {
175: return true;
176: }
1.465.2.9! raeburn 177: var str = new RegExp("^HWFILE.+_delete\$");
! 178: var delboxes = new Array();
1.465.2.6 raeburn 179: for (i=0; i<formname.elements.length; i++) {
180: var id = formname.elements[i].id;
181: if (id != '') {
182: if (str.test(id)) {
183: if (formname.elements[i].type == 'checkbox') {
184: if (formname.elements[i].checked) {
1.465.2.9! raeburn 185: delboxes.push(id);
1.465.2.6 raeburn 186: }
187: }
188: }
189: }
190: }
1.465.2.9! raeburn 191: if (delboxes.length > 0) {
1.465.2.6 raeburn 192: if (confirm("$delfilewarn")) {
193: return true;
194: } else {
1.465.2.9! raeburn 195: for (var j=0; j<delboxes.length; j++) {
! 196: formname.elements[delboxes[j]].checked = false;
! 197: }
1.465.2.6 raeburn 198: return false;
199: }
200: } else {
201: return true;
202: }
203: }
1.465.2.9! raeburn 204: // ]]>
1.465.2.6 raeburn 205: </script>
206: ENDSCRIPT
207: }
208:
1.48 albertel 209: sub page_start {
1.345 albertel 210: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
211: $extra_head)=@_;
1.159 albertel 212: my %found;
1.207 albertel 213: foreach my $taginside (@$tagstack) {
1.159 albertel 214: foreach my $taglookedfor ('html','body','form') {
215: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
216: }
217: }
218:
1.343 albertel 219: if ($target eq 'tex') {
220: return
221: &Apache::londefdef::start_html($target,$token,$tagstack,
222: $parstack,$parser,$safeeval);
223: }
224:
1.465.2.4 raeburn 225: $extra_head .= &homework_js().
226: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
227: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
228: my %textarea_args = (
229: dragmath => 'math',
230: );
231: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 232: }
1.465.2.6 raeburn 233: my $is_task = ($env{'request.uri'} =~ /\.task$/);
234: if ($is_task) {
235: $extra_head .= &file_delchk_js();
236: }
1.425 raeburn 237:
1.344 albertel 238: my %body_args;
239: if (defined($found{'html'})) {
240: $body_args{'skip_phases'}{'head'}=1;
241: } else {
1.343 albertel 242:
1.345 albertel 243: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 244:
1.379 albertel 245: $extra_head .= &Apache::londefdef::generate_css_links();
246:
1.384 albertel 247: if ($env{'request.state'} eq 'construct') {
1.343 albertel 248: $extra_head.=&Apache::edit::js_change_detection().
249: "<script type=\"text/javascript\">\n".
250: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
251: &Apache::loncommon::browser_and_searcher_javascript().
252: "\n</script>\n";
253: }
1.159 albertel 254: }
1.343 albertel 255:
1.446 bisitz 256: my $pageheader = '';
1.344 albertel 257: if (defined($found{'body'})) {
258: $body_args{'skip_phases'}{'body'}=1;
259: } elsif (!defined($found{'body'})
260: && $env{'request.state'} eq 'construct') {
1.343 albertel 261: if ($target eq 'web' || $target eq 'edit') {
1.402 albertel 262: if ($env{'environment.remote'} ne 'off') {
263: $body_args{'only_body'} = 1;
264: }
1.450 bisitz 265: # Breadcrumbs for Construction Space
266: &Apache::lonhtmlcommon::clear_breadcrumbs();
267: &Apache::lonhtmlcommon::add_breadcrumb({
268: 'text' => 'Construction Space',
269: 'href' => &Apache::loncommon::authorspace(),
270: });
1.460 droeschl 271: # breadcrumbs (and tools) will be created
272: # in start_page->bodytag->innerregister
273:
1.450 bisitz 274: # FIXME Where are we?
275: # &Apache::lonhtmlcommon::add_breadcrumb({
276: # 'text' => 'Problem Editing', # 'Problem Testing'
277: # 'href' => '',
278: # });
1.460 droeschl 279: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 280: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 281: }
1.272 albertel 282: } elsif (!defined($found{'body'})) {
1.343 albertel 283: my %add_entries;
1.159 albertel 284: my $background=&Apache::lonxml::get_param('background',$parstack,
285: $safeeval);
1.343 albertel 286: if ($background ne '' ) {
287: $add_entries{'background'} = $background;
288: }
1.344 albertel 289:
1.290 albertel 290: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
291: $safeeval);
1.446 bisitz 292: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 293:
1.446 bisitz 294: $body_args{'bgcolor'} = $bgcolor;
295: # $body_args{'no_title'} = 1;
296: $body_args{'force_register'} = 1;
297: $body_args{'add_entries'} = \%add_entries;
298: if ($env{'environment.remote'} eq 'off'
299: && $env{'request.state'} eq 'construct') {
300: $body_args{'only_body'} = 1;
301: }
1.344 albertel 302: }
1.365 albertel 303: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 304: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
305: \%body_args);
1.446 bisitz 306: $page_start .= $pageheader;
1.462 raeburn 307: if (!defined($found{'body'})
308: && $env{'request.state'} ne 'construct'
309: && ($target eq 'web' || $target eq 'webgrade')) {
310:
311: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
312: if ($symb eq '' && !$publicuser) {
313: $page_start .= '<p class="LC_info">'
314: .&mt('Browsing resource, all submissions are temporary.')
315: .'</p>';
1.457 bisitz 316: }
1.344 albertel 317: }
318:
1.409 albertel 319: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 320: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 321: }
1.344 albertel 322:
1.159 albertel 323: my $form_tag_start;
324: if (!defined($found{'form'})) {
1.337 albertel 325: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 326: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 327: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 328: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 329: $form_tag_start.=$uri.'" ';
330: if ($target eq 'edit') {
331: $form_tag_start.=&Apache::edit::form_change_detection();
332: }
1.465.2.6 raeburn 333: if ($is_task) {
334: $form_tag_start .= ' onsubmit="return file_deletion_check(this);"';
335: }
1.368 albertel 336: $form_tag_start.='>'."\n";
1.355 albertel 337:
338: my $symb=&Apache::lonnet::symbread();
339: if ($symb =~ /\S/) {
340: $symb=
341: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
342: $form_tag_start.=
1.368 albertel 343: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 344: }
1.159 albertel 345: }
1.343 albertel 346: return ($page_start,$form_tag_start);
1.105 albertel 347: }
348:
1.141 matthew 349: #use Time::HiRes();
1.105 albertel 350: sub get_resource_name {
1.159 albertel 351: my ($parstack,$safeeval)=@_;
1.388 foxr 352: my $name;
1.204 albertel 353: if (defined($Apache::lonhomework::name)) {
1.388 foxr 354: $name = $Apache::lonhomework::name;
355: } else {
356: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 357: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 358: if ($name eq '') {
359: $name=&Apache::lonnet::EXT('resource.title');
360: if ($name eq 'con_lost') { $name = ''; }
361: }
362: if ($name!~/\S+/) {
363: $name=$env{'request.uri'};
364: $name=~s-.*/([^/]+)$-$1-;
365: }
366: # The name has had html tags escaped:
367:
368: $name=~s/</</gs;
369: $name=~s/>/>/gs;
370:
371: $Apache::lonhomework::name=$name;
1.204 albertel 372: }
1.159 albertel 373: return $name;
1.105 albertel 374: }
375:
376: sub setup_rndseed {
1.465.2.7 raeburn 377: my ($safeeval,$target)=@_;
1.367 albertel 378: my ($symb)=&Apache::lonnet::whichuser();
1.465.2.7 raeburn 379: my ($questiontype,$set_safespace,$rndseed);
380: if ($target eq 'analyze') {
381: $questiontype = $env{'form.grade_questiontype'};
382: }
383: unless (defined($questiontype)) {
384: $questiontype = $Apache::lonhomework::type;
385: }
1.333 albertel 386: if ($env{'request.state'} eq "construct"
387: || $symb eq ''
388: || $Apache::lonhomework::type eq 'practice'
389: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 390: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 391: ['rndseed']);
1.284 albertel 392: $rndseed=$env{'form.rndseed'};
1.159 albertel 393: if (!$rndseed) {
1.162 albertel 394: $rndseed=$Apache::lonhomework::history{'rndseed'};
395: if (!$rndseed) {
396: $rndseed=time;
397: }
1.284 albertel 398: $env{'form.rndseed'}=$rndseed;
1.162 albertel 399: }
1.465.2.7 raeburn 400: if (($env{'request.state'} eq "construct") &&
401: ($Apache::lonhomework::type eq 'randomizetry')) {
402: my $tries = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
403: if ($tries) {
404: $rndseed += $tries;
405: }
406: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
407: }
1.374 albertel 408: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
409: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 410: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 411: srand(time);
412: $rndseed=int(rand(2100000000));
1.284 albertel 413: $env{'form.rndseed'}=$rndseed;
414: delete($env{'form.resetdata'});
415: delete($env{'form.newrandomization'});
1.159 albertel 416: }
1.187 albertel 417: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 418: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 419: }
1.247 albertel 420: if ($Apache::lonhomework::history{'resource.CODE'}) {
421: $rndseed=&Apache::lonnet::rndseed();
422: }
1.465.2.7 raeburn 423: $set_safespace = 1;
424: } elsif ($questiontype eq 'randomizetry') {
425: if ($target eq 'analyze') {
426: if (defined($env{'form.grade_rndseed'})) {
427: $rndseed = $env{'form.grade_rndseed'};
428: }
429: }
430: unless (($target eq 'analyze') && (defined($rndseed))) {
431: $rndseed=&Apache::lonnet::rndseed();
432: my $curr_try = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
433: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
434: $curr_try ++;
435: }
436: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
437: $rndseed = $1;
438: }
439: if ($curr_try) {
440: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
441: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
442: my $inc = int(($curr_try-1)/$reqtries);
443: $rndseed += $inc;
444: } else {
445: $rndseed += $curr_try;
446: }
447: }
448: }
449: $set_safespace = 1;
450: }
451: if ($set_safespace) {
452: if ($safeeval) {
453: &Apache::lonxml::debug("Setting rndseed to $rndseed");
454: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
455: }
456: }
457: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
458: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 459: }
460: return $rndseed;
1.105 albertel 461: }
462:
1.268 albertel 463: sub remember_problem_state {
464: return '
1.284 albertel 465: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
466: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
467: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 468: }
469:
1.423 www 470: sub problem_edit_buttons {
471: return '
1.408 albertel 472: <div class="LC_edit_problem_discards">
1.416 raeburn 473: <input type="button" name="submitmode" accesskey="d" value="'.&mt('Discard Edits and View').'" '.
1.423 www 474: ' onclick="javscript:setmode(this.form,'."'discard'".')" />
1.416 raeburn 475: <input '.&Apache::edit::submit_ask_anyway('setmode(this.form,'."'editxml'".')').' type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" />
1.407 albertel 476: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
1.408 albertel 477: </div>
478: <div class="LC_edit_problem_saves">
1.416 raeburn 479: <input type="submit" name="submitbutton" accesskey="s" value="'.&mt('Save and Edit').'" />
480: <input type="submit" name="submitbutton" accesskey="v" value="'.&mt('Save and View').'" />
1.423 www 481: </div>';
482: }
483:
484: sub problem_edit_header {
485: return '<input type="hidden" name="submitted" value="edit" /><input type="hidden" name="problemmode" value="edit" />'.
486: &Apache::structuretags::remember_problem_state().'
487: <div class="LC_edit_problem_header">
488: <div class="LC_edit_problem_header_title">
489: '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
490: </div>'.
491: &problem_edit_buttons().'
1.459 bisitz 492: <hr style="clear:both;" />
1.409 albertel 493: '.&Apache::lonxml::message_location().'
1.408 albertel 494: </div>
495: '.
1.458 bisitz 496: '<table border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
1.105 albertel 497: }
498:
499: sub problem_edit_footer {
1.412 albertel 500: return '</td></tr></table><br />
501: <div class="LC_edit_problem_footer">
1.453 bisitz 502: <hr />'.
1.423 www 503: &problem_edit_buttons().'
1.459 bisitz 504: <hr style="clear:both;" />
1.412 albertel 505: </div>
506: '.
1.342 albertel 507: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 508: }
509:
1.235 albertel 510: sub option {
511: my ($value,$name) = @_;
512: my $result ="<option value='".$value."' ";
1.284 albertel 513: if ($env{'form.'.$name} eq $value) {
1.235 albertel 514: $result.=" selected='on' ";
515: }
516: $result.='>';
517: return $result;
518: }
519:
1.105 albertel 520: sub problem_web_to_edit_header {
1.159 albertel 521: my ($rndseed)=@_;
1.406 albertel 522: my $result .= '<div class="LC_edit_problem_header">';
523:
524: if (!$Apache::lonhomework::parsing_a_task) {
525: $result .=
526: '<div class="LC_edit_problem_header_title">'.
527: &mt('Problem Testing').
528: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
529: '</div>';
530: } else {
531: $result .=
532: '<div class="LC_edit_problem_header_title">'.
533: &mt('Task Testing').
534: '</div>';
535: }
536:
1.315 albertel 537: my $show_all_foils_text =
538: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 539: &mt('Show All Instances')
540: : &mt('Show All Foils');
1.315 albertel 541:
1.452 bisitz 542: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
543: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 544: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 545: $show_all.= ' /> '.$show_all_foils_text
546: .'</label></span>';
1.406 albertel 547:
548:
1.384 albertel 549:
1.406 albertel 550: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 551: if (!$Apache::lonhomework::parsing_a_task) {
552: $result.="
1.406 albertel 553: <div class='LC_edit_problem_header_row1'>
554: <span class=\"LC_nobreak\">
1.405 albertel 555: ".&mt("Problem Status:")."
1.235 albertel 556: <select name='problemstate'>
1.270 albertel 557: <option value=''></option>
1.235 albertel 558: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
559: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
560: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
561: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
562: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
563: </select>
1.406 albertel 564: </span>
565: <span class=\"LC_nobreak\">
1.405 albertel 566: ".&mt("Problem Type:")."
1.235 albertel 567: <select name='problemtype'>
1.270 albertel 568: <option value=''></option>
1.242 albertel 569: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 570: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 571: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 572: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
573: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
574: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 575: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.465.2.7 raeburn 576: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 577: </select>
1.406 albertel 578: </span>
579: $show_all
580: </div>
581: <div class='LC_edit_problem_header_row2'>
582: <span class=\"LC_nobreak\">
1.405 albertel 583: ".&mt("Feedback Mode:")."
1.235 albertel 584: <select name='problemstatus'>
585: <option value=''></option>
1.242 albertel 586: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.405 albertel 587: ".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
588: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 589: </select>
1.406 albertel 590: </span>
591: ";
592:
1.376 albertel 593: } elsif ($Apache::lonhomework::parsing_a_task) {
594: $result.="
1.406 albertel 595: <div class='LC_edit_problem_header_row1'>
596: <span class=\"LC_nobreak\">
1.405 albertel 597: ".&mt("Problem Status:")."
1.376 albertel 598: <select name='problemstate'>
599: <option value=''></option>
600: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
601: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
602: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
603: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
604: </select>
1.406 albertel 605: </span>
606: $show_all
607: ";
608: }
609: $result.='
610: <span class="LC_nobreak">
611: '.&mt('Apply style file: ').'
612: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
613: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
614: </span>
1.422 www 615: </div>
616: <div class="LC_edit_problem_header_row1">'.
617: &Apache::lonxml::renderingoptions().'
1.406 albertel 618: </div>
619: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
620: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
621: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
622: </div>
1.453 bisitz 623: <hr />
1.406 albertel 624: <div class="LC_edit_problem_header_randomize_row">
625: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
626: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
627: <input type="text" name="rndseed" size="10" value="'.
628: $rndseed.'"
629: onchange="javascript:document.lonhomework.changerandseed.click()" />';
630:
631: if (!$Apache::lonhomework::parsing_a_task) {
632: my $numtoanalyze=$env{'form.numtoanalyze'};
633: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 634: $result .= '<span class="LC_nobreak">'.
635: &mt('[_1] for [_2] versions.',
1.416 raeburn 636: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 637: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
638: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 639: $numtoanalyze.'" size="5" />').
640: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
641: '</span>';
642:
1.313 albertel 643: }
1.406 albertel 644:
645: $result.='
646: </div>
1.453 bisitz 647: <hr />
1.447 bisitz 648: <div>';
1.416 raeburn 649: $result.='<input type="hidden" name="problemmode" value="view" />';
650: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
651: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
652: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
653: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 654: $result.='
655: </div>
1.453 bisitz 656: <hr />
1.409 albertel 657: '.&Apache::lonxml::message_location().'
1.406 albertel 658: </div>';
1.159 albertel 659: return $result;
1.48 albertel 660: }
661:
1.65 albertel 662: sub initialize_storage {
1.357 albertel 663: my ($given_symb) = @_;
1.353 albertel 664: undef(%Apache::lonhomework::results);
665: undef(%Apache::lonhomework::history);
1.357 albertel 666: my ($symb,$courseid,$domain,$name) =
1.367 albertel 667: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 668:
669: # anonymous users (CODEd exams) have no data
670: if ($name eq 'anonymous'
671: && !defined($domain)) {
672: return;
673: }
674:
1.333 albertel 675: if ($env{'request.state'} eq 'construct'
676: || $symb eq ''
677: || $Apache::lonhomework::type eq 'practice') {
678:
679: my $namespace = $symb || $env{'request.uri'};
680: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 681: ($env{'form.resetdata'} eq &mt('New Problem Variation')
682: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 683: $env{'form.newrandomization'} eq &mt('New Randomization')) {
684: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
685: &Apache::lonxml::debug("Attempt reset");
686: }
1.159 albertel 687: %Apache::lonhomework::history=
1.333 albertel 688: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 689: my ($temp)=keys %Apache::lonhomework::history ;
690: &Apache::lonxml::debug("Return message of $temp");
691: } else {
692: %Apache::lonhomework::history=
693: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
694: }
1.353 albertel 695:
1.159 albertel 696: #ignore error conditions
1.67 albertel 697: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 698: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 699: }
700:
1.435 jms 701: =pod
702:
703: =item finalize_storage()
704:
705: Stores away the result has to a student's environment
706: checks form.grade_ for specific values, other wises stores
707: to the running users environment
708: Will increment totals for attempts, students, and corrects
709: if running user has student role.
710:
711: =cut
712:
713:
1.65 albertel 714: sub finalize_storage {
1.357 albertel 715: my ($given_symb) = @_;
1.159 albertel 716: my $result;
1.289 albertel 717: if (%Apache::lonhomework::results) {
1.323 albertel 718: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
719: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 720: my ($symb,$courseid,$domain,$name) =
1.367 albertel 721: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 722: if ($env{'request.state'} eq 'construct'
723: || $symb eq ''
724: || $Apache::lonhomework::type eq 'practice') {
725: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 726: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 727: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 728: $namespace,'',$domain,$name);
1.159 albertel 729: &Apache::lonxml::debug('Construct Store return message:'.$result);
730: } else {
731: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
732: $symb,$courseid,$domain,$name);
733: &Apache::lonxml::debug('Store return message:'.$result);
1.465.2.3 raeburn 734: &store_aggregates($symb,$courseid);
1.159 albertel 735: }
1.323 albertel 736: } else {
737: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 738: }
1.159 albertel 739: return $result;
1.65 albertel 740: }
741:
1.435 jms 742: =pod
743:
744: item store_aggregates()
745:
746: Sends hash of values to be incremented in nohist_resourcetracker.db
747: for the course. Increments total number of attempts, unique students
748: and corrects for each part for an instance of a problem, as appropriate.
749:
750: =cut
751:
1.285 raeburn 752: sub store_aggregates {
753: my ($symb,$courseid) = @_;
1.465.2.7 raeburn 754: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 755: my @parts;
1.288 albertel 756: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
757: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 758: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 759: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 760: push(@parts, $1);
1.285 raeburn 761: }
762: }
1.286 albertel 763: foreach my $part (@parts) {
1.465.2.3 raeburn 764: if ($env{'request.role'} =~/^st/) {
765: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
766: eq 'APPROX_ANS' ||
767: $Apache::lonhomework::results{'resource.'.$part.'.award'}
768: eq 'EXACT_ANS') {
769: $aggregate{$symb."\0".$part."\0correct"} = 1;
770: }
771: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
772: $aggregate{$symb."\0".$part."\0users"} = 1;
773: } else {
774: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
775: if ($last_reset) {
776: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
777: $aggregate{$symb."\0".$part."\0users"} = 1;
778: }
779: }
780: }
781: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 782: }
1.465.2.3 raeburn 783: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.465.2.7 raeburn 784: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
785: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
786: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
787: $randtrycounter{$symb."\0".$part} = 1;
788: } else {
789: $anoncounter{$symb."\0".$part} = 1;
790: }
1.465.2.3 raeburn 791: $anoncounter{$symb."\0".$part} = 1;
792: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
793: if ($needsrelease) {
794: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
795: if ($curr_required eq '') {
796: &Apache::lonnet::update_released_required($needsrelease);
797: } else {
798: my ($currmajor,$currminor) = split(/\./,$curr_required);
799: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
800: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
801: &Apache::lonnet::update_released_required($needsrelease);
802: }
1.292 raeburn 803: }
804: }
1.285 raeburn 805: }
806: }
1.292 raeburn 807: if (keys (%aggregate) > 0) {
1.289 albertel 808: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 809: $cdomain,$cname);
810: }
1.465.2.3 raeburn 811: if (keys(%anoncounter) > 0) {
1.465.2.8 raeburn 812: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
813: $cdomain,$cname);
1.465.2.3 raeburn 814: }
1.465.2.7 raeburn 815: if (keys(%randtrycounter) > 0) {
1.465.2.8 raeburn 816: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
817: $cdomain,$cname);
1.465.2.7 raeburn 818: }
1.292 raeburn 819: }
1.289 albertel 820:
1.65 albertel 821: sub checkout_msg {
1.211 albertel 822: my %lt=&Apache::lonlocal::texthash(
823: 'resource'=>'The resource needs to be checked out',
824: '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.',
825: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
826: 'checkout'=>'Check out Exam for Viewing',
827: 'checkout?'=>'Check out Exam?');
1.352 albertel 828: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 829: return (<<ENDCHECKOUT);
1.211 albertel 830: <h2>$lt{'resource'}</h2>
831: <p>$lt{'id_expln'}</p>
1.449 bisitz 832: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 833: <form name="checkout" method="post" action="$uri">
1.91 albertel 834: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 835: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 836: </form>
837: ENDCHECKOUT
838: }
839:
1.252 albertel 840: sub firstaccess_msg {
1.253 albertel 841: my ($time,$symb)=@_;
1.414 albertel 842: my $result;
843: my @interval=&Apache::lonnet::EXT("resource.0.interval");
844: if ($interval[1] eq 'map') {
845: my ($map)=&Apache::lonnet::decode_symb($symb);
846: my $foldertitle=&Apache::lonnet::gettitle($map);
847:
848: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.418 bisitz 849: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
850: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
851: ,$foldertitle,$time)."</h2>";
1.414 albertel 852: } elsif ($interval[1] eq 'course') {
853: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.418 bisitz 854: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
855: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
856: ,$course,$time)."</h2>";
1.414 albertel 857: } else {
858: my $title=&Apache::lonnet::gettitle($symb);
1.418 bisitz 859: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.'
860: .' Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
861: ,$title,$time)."</h2>";
1.414 albertel 862: }
1.352 albertel 863: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 864: my $buttontext = &mt('Show Resource');
865: my $timertext = &mt('Start Timer?');
1.414 albertel 866: $result .= (<<ENDCHECKOUT);
1.444 bisitz 867: <form name="markaccess" method="post" action="$uri">
1.252 albertel 868: <input type="hidden" name="markaccess" value="yes" />
1.418 bisitz 869: <input type="button" name="accessbutton" value="$buttontext" onClick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 870: </form>
871: ENDCHECKOUT
1.414 albertel 872: return $result;
1.252 albertel 873: }
874:
1.204 albertel 875: sub init_problem_globals {
876: my ($type)=@_;
877: #initialize globals
1.308 foxr 878: # For problems, we start out in part 0 (outside a <part> tag).
879: # and part 0 is used to describe the main body of the <problem>
880: #
1.204 albertel 881: if ($type eq 'problem') {
882: $Apache::inputtags::part='0';
883: @Apache::inputtags::partlist=('0');
1.405 albertel 884: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 885: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 886:
1.266 albertel 887: } elsif ($type eq 'library') {
1.204 albertel 888: $Apache::inputtags::part='';
889: @Apache::inputtags::partlist=();
1.405 albertel 890: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 891: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 892:
1.304 albertel 893: } elsif ($type eq 'Task') {
894: $Apache::inputtags::part='0';
895: @Apache::inputtags::partlist=('0');
1.405 albertel 896: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 897: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 898: }
899: @Apache::inputtags::responselist = ();
900: @Apache::inputtags::importlist = ();
901: @Apache::inputtags::previous=();
902: @Apache::inputtags::previous_version=();
903: $Apache::structuretags::printanswer='No';
904: @Apache::structuretags::whileconds=();
905: @Apache::structuretags::whilebody=();
906: @Apache::structuretags::whileline=();
907: $Apache::lonhomework::scantronmode=0;
908: undef($Apache::lonhomework::name);
1.358 albertel 909: undef($Apache::lonhomework::default_type);
910: undef($Apache::lonhomework::type);
1.204 albertel 911: }
912:
913: sub reset_problem_globals {
914: my ($type)=@_;
915: undef(%Apache::lonhomework::history);
916: undef(%Apache::lonhomework::results);
917: undef($Apache::inputtags::part);
1.208 albertel 918: #don't undef this, lonhomework.pm takes care of this, we use this to
919: #detect if we try to do 2 problems in one file
920: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 921: undef($Apache::lonhomework::name);
1.358 albertel 922: undef($Apache::lonhomework::default_type);
923: undef($Apache::lonhomework::type);
924: undef($Apache::lonhomework::scantronmode);
925: undef($Apache::lonhomework::ignore_response_errors);
1.405 albertel 926: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 927: }
928:
1.241 albertel 929: sub set_problem_state {
1.240 albertel 930: my ($part)=@_;
1.284 albertel 931: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 932: $Apache::lonhomework::history{"resource.$part.solved"}=
933: 'correct_by_student';
934: }
935: }
936:
1.241 albertel 937: sub get_problem_status {
938: my ($part)=@_;
1.267 albertel 939: my $problem_status;
1.284 albertel 940: if ($env{'request.state'} eq 'construct' &&
941: defined($env{'form.problemstatus'})) {
942: $problem_status=$env{'form.problemstatus'};
1.267 albertel 943: } else {
944: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
945: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 946: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 947: }
948: return $problem_status;
949: }
950:
1.9 albertel 951: sub start_problem {
1.326 albertel 952: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 953:
1.311 foxr 954: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 955: if (!$Apache::lonxml::metamode) {
956: &Apache::lonxml::startredirection();
957: }
1.311 foxr 958:
1.308 foxr 959: # Problems don't nest and we don't allow more than one <problem> in
960: # a .problem file.
961: #
1.184 albertel 962: if ( $Apache::inputtags::part ne '' ||
963: $Apache::lonhomework::parsing_a_problem) {
964: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 965: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 966: return '';
967: }
1.184 albertel 968:
969: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 970: &init_problem_globals('problem');
1.166 albertel 971:
1.284 albertel 972: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 973: $Apache::lonhomework::scantronmode=1;
974: }
1.161 albertel 975:
1.159 albertel 976: if ($target ne 'analyze') {
1.415 raeburn 977: my $type = &Apache::lonnet::EXT('resource.0.type');
978: $Apache::lonhomework::type=$type;
1.284 albertel 979: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 980: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 981: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 982: }
1.332 albertel 983: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 984: }
1.164 albertel 985: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 986: my $uri=$env{'request.uri'};
1.159 albertel 987: if ($uri=~/\.(\w+)$/) {
988: $Apache::lonhomework::type=$1;
989: &Apache::lonxml::debug("Using type of $1");
990: } else {
991: $Apache::lonhomework::type='problem';
992: &Apache::lonxml::debug("Using default type, problem, :$uri:");
993: }
1.87 albertel 994: }
1.301 albertel 995: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 996:
1.363 albertel 997: &initialize_storage();
1.389 albertel 998: if ($target ne 'analyze'
999: && $env{'request.state'} eq 'construct') {
1000: &set_problem_state('0');
1001: }
1002:
1.366 albertel 1003: if ($target eq 'web') {
1004: &Apache::lonxml::debug(" grading history ");
1005: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1006: }
1.363 albertel 1007:
1.159 albertel 1008: #added vars to the scripting enviroment
1.213 albertel 1009: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1010: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1011: &Apache::run::run($expression,$safeeval);
1.159 albertel 1012: my $status;
1013: my $accessmsg;
1014:
1.343 albertel 1015: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 1016: my ($result,$form_tag_start);
1.354 albertel 1017: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1018: || $target eq 'edit') {
1.350 albertel 1019: ($result,$form_tag_start) =
1020: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1021: $name);
1022: }
1023:
1.284 albertel 1024: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1025:
1.465.2.7 raeburn 1026: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1027: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1028: $target eq 'tex') {
1029: #handle exam checkout
1030: if ($Apache::lonhomework::type eq 'exam') {
1031: my $token=
1032: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 1033: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 1034: $token=&Apache::lonxml::maketoken();
1035: $Apache::lonhomework::history{"resource.0.outtoken"}=
1036: $token;
1037: }
1.343 albertel 1038: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 1039: }
1.284 albertel 1040: if ($env{'form.markaccess'}) {
1.414 albertel 1041: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1042: &Apache::lonnet::set_first_access($interval[1]);
1.252 albertel 1043: }
1.465.2.7 raeburn 1044:
1045: ($status,$accessmsg,my $slot_name,my $slot) =
1046: &Apache::lonhomework::check_slot_access('0','problem');
1047: push (@Apache::inputtags::status,$status);
1048:
1.159 albertel 1049: #handle rand seed in construction space
1.465.2.7 raeburn 1050: my $rndseed=&setup_rndseed($safeeval,$target);
1.367 albertel 1051: my ($symb)=&Apache::lonnet::whichuser();
1.465.2.7 raeburn 1052:
1.333 albertel 1053: if ($env{'request.state'} ne "construct" &&
1054: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1055: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1056: $rndseed.'" />'.
1057: '<input type="submit" name="resetdata"
1058: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1059: if (exists($env{'form.username'})) {
1060: $form_tag_start.=
1.164 albertel 1061: '<input type="hidden" name="username"
1.284 albertel 1062: value="'.$env{'form.username'}.'" />';
1.334 albertel 1063: }
1.462 raeburn 1064: if ($env{'request.role.adv'}) {
1065: $form_tag_start.= ' <label class="LC_nobreak">'
1066: .'<input type="checkbox" name="showallfoils"';
1067: if (defined($env{'form.showallfoils'})) {
1068: $form_tag_start.=' checked="checked"';
1069: }
1070: $form_tag_start.= ' /> '
1071: .&mt('Show All Foils')
1072: .'</label>';
1073: }
1.417 www 1074: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1075: $form_tag_start.=&practice_problem_header();
1.417 www 1076: }
1.462 raeburn 1077: $form_tag_start.='<hr />';
1.465.2.7 raeburn 1078: } elsif (($env{'request.state'} ne "construct") &&
1079: ($Apache::lonhomework::type eq 'randomizetry') &&
1080: ($status eq 'CAN_ANSWER')) {
1081: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1082: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1083: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1084: }
1.324 albertel 1085:
1.159 albertel 1086: my $expression='$external::datestatus="'.$status.'";';
1087: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1088: &Apache::run::run($expression,$safeeval);
1089: &Apache::lonxml::debug("Got $status");
1.324 albertel 1090:
1.159 albertel 1091: if (( $status eq 'CLOSED' ) ||
1092: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1093: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1094: ( $status eq 'BANNED') ||
1.216 albertel 1095: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1096: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 1097: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1098: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1099: $style);
1.159 albertel 1100: if ( $target eq "web" ) {
1.343 albertel 1101: my $msg;
1.159 albertel 1102: if ($status eq 'UNAVAILABLE') {
1.245 albertel 1103: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.441 raeburn 1104: } elsif ($status eq 'NOT_IN_A_SLOT') {
1105: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.253 albertel 1106: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 1107: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 1108: }
1.216 albertel 1109: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1110: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1111: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1112: $msg.=&checkout_msg();
1.252 albertel 1113: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1114: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1115: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1116: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.159 albertel 1117: }
1118: $result.=$msg.'<br />';
1119: } elsif ($target eq 'tex') {
1.332 albertel 1120: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1121: : '\begin{minipage}{\textwidth}';
1.443 foxr 1122: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1123: $startminipage.'\vskip 0 mm';
1.159 albertel 1124: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1125: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1126: } else {
1.211 albertel 1127: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1128: }
1129: }
1.324 albertel 1130: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1131: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1132: $style);
1.324 albertel 1133: if ($target eq 'web') {
1.375 albertel 1134: $result .=
1135: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1136: } elsif ($target eq 'grade') {
1137: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1138: 'problem');
1139: }
1.159 albertel 1140: } elsif ($target eq 'web') {
1.360 albertel 1141: if ($status eq 'CAN_ANSWER'
1142: && $slot_name ne ''
1143: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
1144: # unproctored slot access, self checkin
1145: &Apache::bridgetask::check_in('problem',undef,undef,
1146: $slot_name);
1147: }
1.368 albertel 1148: $result.="\n $form_tag_start \t".
1.227 albertel 1149: '<input type="hidden" name="submitted" value="yes" />';
1150: # create a page header and exit
1.284 albertel 1151: if ($env{'request.state'} eq "construct") {
1152: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1153: if ($Apache::lonhomework::type eq 'practice') {
1154: $result.= '<input type="submit" name="resetdata" '.
1155: 'value="'.&mt('New Problem Variation').'" />'.
1156: &practice_problem_header().'<hr />';
1157: }
1.227 albertel 1158: }
1159: # if we are viewing someone else preserve that info
1.284 albertel 1160: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1161: foreach my $field ('symb','courseid','domain','username') {
1162: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1163: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1164: }
1.465.2.7 raeburn 1165: foreach my $field ('questiontype','rndseed') {
1166: if ($env{"form.grade_$field"} ne '') {
1167: $result .= '<input type="hidden" name="grade_'.$field.
1168: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1169: }
1170: }
1171:
1.159 albertel 1172: }
1173: } elsif ($target eq 'tex') {
1.319 foxr 1174: $result .= 'INSERTTEXFRONTMATTERHERE';
1175:
1.99 sakharuk 1176: }
1.159 albertel 1177: } elsif ($target eq 'edit') {
1.343 albertel 1178: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1179: $Apache::lonxml::warnings_error_header=
1180: &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 1181: my $temp=&Apache::edit::insertlist($target,$token);
1182: $result.=$temp;
1183: } elsif ($target eq 'modified') {
1184: $result=$token->[4];
1185: } else {
1186: # page_start returned a starting result, delete it if we don't need it
1187: $result = '';
1.99 sakharuk 1188: }
1.159 albertel 1189: return $result;
1.9 albertel 1190: }
1191:
1192: sub end_problem {
1.159 albertel 1193: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1194: my $result;
1.310 foxr 1195:
1.321 albertel 1196: if (!$Apache::lonxml::metamode) {
1197: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1198: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1199: }
1.319 foxr 1200:
1201: if ($target eq 'tex') {
1.321 albertel 1202: # Figure out the front matter and replace the
1203: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1204: # this in end_problem because whether or not we display due
1205: # dates depends on whether due dates have already been
1206: # displayed in the problem parts.
1207:
1.319 foxr 1208: my $frontmatter = '';
1209: my $startminipage = '';
1210: if (not $env{'form.problem_split'}=~/yes/) {
1211: $startminipage = '\begin{minipage}{\textwidth}';
1212: }
1213: my $id = $Apache::inputtags::part;
1214: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1215: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1216: my @packages = split /,/,$packages;
1217: my $allow_print_points = 0;
1218: foreach my $partial_key (@packages) {
1219: if ($partial_key=~m/^part_0$/) {
1220: $allow_print_points=1;
1221: }
1222: }
1223: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1224: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1225: if (lc($env{'course.'.$env{'request.course.id'}.
1226: '.disableexampointprint'}) eq 'yes') {
1227: $allow_print_points=0;
1228: }
1229: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1230: 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 1231: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1232: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1233:
1234: # Figure out what the due date is and if we need to print
1235: # it in the problem header. We have been logging the
1236: # last due date written to file.
1237:
1238: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1239: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1240: my $duedate_text = &mt('Due date: [_1]'
1241: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1242: my $temp_file;
1243: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1244:
1245: # Figure out what the last printed due date is or set it
1246: # to the epoch if no duedates have been printed.
1247:
1248: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1249: if (-e $filename) {
1250: $temp_file = Apache::File->new($filename);
1251: my @due_file = <$temp_file>;
1252: $due_file_content = $due_file[$#due_file];
1253: chomp $due_file_content;
1254: }
1255:
1256: # We display the due date iff it is not the same as the last
1257: # duedate in problem header ($due_file_content), and
1258: # none of our parts displayed a duedate.
1259: #
1260: my $parts_with_displayduedate;
1261: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1262: $parts_with_displayduedate =
1263: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1264: } else {
1265: $parts_with_displayduedate = 0;
1266: }
1267: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1268: $temp_file = Apache::File->new('>'.$filename);
1269: print $temp_file "$duetime\n";
1270: if (not $env{'request.symb'} =~ m/\.page_/) {
1271: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1272: $frontmatter .= $begin_doc.
1.448 bisitz 1273: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1274: } else {
1275: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1276: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1277: $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
1278: }
1.319 foxr 1279: }
1280: } else {
1.448 bisitz 1281: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1282: }
1283: } else {
1284: if (not $env{'request.symb'} =~ m/\.page_/) {
1285: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1286: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1287: $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
1288: }
1.319 foxr 1289: } else {
1.381 albertel 1290: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1291: }
1292: }
1293: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1294: }
1295:
1.159 albertel 1296: my $status=$Apache::inputtags::status['-1'];
1297: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1298: $target eq 'tex') {
1.249 albertel 1299: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1300: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1301: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1302: &Apache::inputtags::grade;
1.324 albertel 1303: } elsif ($status eq 'NEEDS_CHECKIN') {
1304: # no need to grade, and don't want to hide data
1.249 albertel 1305: } else {
1306: # move any submission data to .hidden
1307: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1308: }
1.159 albertel 1309: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1310: $Apache::inputtags::part eq '0' &&
1.252 albertel 1311: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 1312: # if part is zero, no <part>s existed, so we need show the current
1313: # grading status
1314: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1315: $result.= $gradestatus;
1316: }
1317: if (
1.284 albertel 1318: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1319: ($target eq 'answer') || ($target eq 'tex')
1320: ) {
1.227 albertel 1321: if ($target ne 'tex' &&
1.284 albertel 1322: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 1323: $result.="</form>";
1.159 albertel 1324: }
1325: if ($target eq 'web') {
1.346 albertel 1326: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1327: } elsif ($target eq 'tex') {
1.178 sakharuk 1328: my $endminipage = '';
1.284 albertel 1329: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1330: $endminipage = '\end{minipage}';
1331: }
1.284 albertel 1332: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1333: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1334: } else {
1.262 sakharuk 1335: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1336: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1337: $result .= $endminipage.'\end{document} ';
1338: } else {
1.382 albertel 1339: $result .= $endminipage;
1.262 sakharuk 1340: }
1.159 albertel 1341: }
1342: }
1343: }
1344: if ($target eq 'grade') {
1345: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1346: &finalize_storage();
1347: }
1.284 albertel 1348: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1349: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1350: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1351: # normally we get it from above, but in CSTR
1.172 albertel 1352: # we always show answer mode too.
1.159 albertel 1353: }
1354: } elsif ($target eq 'meta') {
1355: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1356: @Apache::inputtags::response=();
1.159 albertel 1357: $result=&Apache::response::mandatory_part_meta;
1358: }
1.215 albertel 1359: $result.=&Apache::response::meta_part_order();
1.258 albertel 1360: $result.=&Apache::response::meta_response_order();
1.159 albertel 1361: } elsif ($target eq 'edit') {
1362: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1363: $result .= &problem_edit_footer();
1.320 albertel 1364: } elsif ($target eq 'modified') {
1365: $result .= $token->[2];
1.159 albertel 1366: }
1.155 albertel 1367:
1.284 albertel 1368: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1369: &Apache::inputtags::check_for_duplicate_ids();
1370: }
1.204 albertel 1371:
1372: &reset_problem_globals('problem');
1.159 albertel 1373:
1374: return $result;
1.48 albertel 1375: }
1376:
1.108 albertel 1377:
1.48 albertel 1378: sub start_library {
1.159 albertel 1379: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1380: my ($result,$form_tag_start);
1.371 albertel 1381: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1382: &init_problem_globals('library');
1383: $Apache::lonhomework::type='problem';
1384: }
1.159 albertel 1385: if ($target eq 'edit') {
1.343 albertel 1386: ($result,$form_tag_start)=
1387: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1388: 'Edit');
1389: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1390: my $temp=&Apache::edit::insertlist($target,$token);
1391: $result.=$temp;
1392: } elsif ($target eq 'modified') {
1393: $result=$token->[4];
1.340 albertel 1394: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1395: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1396: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1397: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1398: ($result,$form_tag_start)=
1399: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1400: $name);
1.465.2.7 raeburn 1401: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 1402: $result.=" \n $form_tag_start".
1.159 albertel 1403: '<input type="hidden" name="submitted" value="yes" />';
1404: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1405: if ($Apache::lonhomework::type eq 'practice') {
1406: $result.= '<input type="submit" name="resetdata" '.
1407: 'value="'.&mt('New Problem Variation').'" />'.
1408: &practice_problem_header().'<hr />';
1409: }
1.159 albertel 1410: }
1411: return $result;
1.48 albertel 1412: }
1413:
1414: sub end_library {
1.159 albertel 1415: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1416: my $result='';
1417: if ($target eq 'edit') {
1418: $result=&problem_edit_footer();
1.371 albertel 1419: } elsif ($target eq 'web'
1420: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1421: && $env{'request.state'} eq "construct") {
1.349 albertel 1422: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1423: }
1.371 albertel 1424: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1425: &reset_problem_globals('library');
1426: }
1.159 albertel 1427: return $result;
1.197 www 1428: }
1429:
1430: sub start_definetag {
1.326 albertel 1431: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1432:
1433: my $result;
1434:
1435: my $name = $token->[2]->{'name'};
1.326 albertel 1436: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1437: if ($target eq 'web') {
1438: if ($name=~/^\//) {
1439: $result=
1440: '<br /><table class="LC_sty_end"><tr><th>'.
1441: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1442: } else {
1443: $result=
1444: '<br /><table class="LC_sty_begin"><tr><th>'.
1445: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1446: }
1447: $skip = &HTML::Entities::encode($skip, '<>&"');
1448: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1449: }
1450: return $result;
1451: }
1452:
1453: sub end_definetag {
1454: return '';
1.1 albertel 1455: }
1456:
1457: sub start_block {
1.201 albertel 1458: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1459:
1460: my $result;
1.1 albertel 1461:
1.339 albertel 1462: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1463: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1464: my $code = $token->[2]->{'condition'};
1.385 albertel 1465: if (defined($code) && $code ne '') {
1.137 albertel 1466: if (!$Apache::lonxml::default_homework_loaded) {
1467: &Apache::lonxml::default_homework_load($safeeval);
1468: }
1.131 albertel 1469: $result = &Apache::run::run($code,$safeeval);
1470: &Apache::lonxml::debug("block :$code: returned :$result:");
1471: } else {
1472: $result='1';
1473: }
1474: if ( ! $result ) {
1.201 albertel 1475: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1476: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1477: }
1478: $result='';
1479: } elsif ($target eq 'edit') {
1480: $result .=&Apache::edit::tag_start($target,$token);
1481: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1482: $token,40);
1483: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1484: } elsif ($target eq 'modified') {
1485: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1486: $safeeval,'condition');
1487: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1488: }
1.131 albertel 1489: return $result;
1.1 albertel 1490: }
1491:
1492: sub end_block {
1.167 www 1493: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1494: my $result;
1495: if ($target eq "edit") {
1496: $result.= &Apache::edit::tag_end($target,$token,'');
1497: }
1498: return $result;
1499: }
1500:
1501: sub start_languageblock {
1.201 albertel 1502: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1503:
1504: my $result;
1505:
1.339 albertel 1506: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1507: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1508: my $include = $token->[2]->{'include'};
1509: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1510: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.394 www 1511: # This should not even happen, since we should at least have the server language
1.398 www 1512: if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
1513: # Now loop over all languages in order of preference
1514: foreach my $preferred_language (@preferred_languages) {
1.394 www 1515: # If the languageblock has no arguments, show the contents
1.399 www 1516: $result=1;
1517: my $found=0;
1.394 www 1518: # Do we have an include argument?
1.398 www 1519: if ($include) {
1.394 www 1520: # If include is specified, by default, don't render the block
1.399 www 1521: $result=0;
1.398 www 1522: foreach my $included_language (split(/\,/,$include)) {
1.394 www 1523: # ... but if my preferred language is included, render it
1.398 www 1524: if ($included_language eq $preferred_language) {
1.399 www 1525: $result=1;
1526: $found=1;
1.398 www 1527: }
1528: }
1529: }
1.394 www 1530: # Do we have an exclude argument?
1.398 www 1531: if ($exclude) {
1.399 www 1532: $result=1;
1.398 www 1533: foreach my $excluded_language (split(/\,/,$exclude)) {
1534: if ($excluded_language eq $preferred_language) {
1.399 www 1535: $result=0;
1536: $found=1;
1.398 www 1537: }
1538: }
1539: }
1.399 www 1540: if ($found) { last; }
1.398 www 1541: }
1.201 albertel 1542: if ( ! $result ) {
1543: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1544: $style);
1545: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1546: }
1547: $result='';
1.167 www 1548: } elsif ($target eq 'edit') {
1549: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1550: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1551: $token,40);
1.211 albertel 1552: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1553: $token,40);
1554: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1555: } elsif ($target eq 'modified') {
1556: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1557: $safeeval,'include',
1558: 'exclude');
1.167 www 1559: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1560: }
1561: return $result;
1562: }
1563:
1564: sub end_languageblock {
1.170 www 1565: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1566: my $result;
1.201 albertel 1567: if ($target eq "edit") {
1.170 www 1568: $result.= &Apache::edit::tag_end($target,$token,'');
1569: }
1570: return $result;
1571: }
1572:
1.397 albertel 1573: {
1574: my %available_texts;
1575: sub start_translated {
1576: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1577: &Apache::lonxml::register('Apache::structuretags',('lang'));
1578: undef(%available_texts);
1579: }
1580:
1581: sub end_translated {
1582: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1583: my $result;
1584: #show the translation on viewable targets
1585: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1586: # or non-viewable targets, if it's embedded in something that
1587: # wants the output
1588: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1589: && &Apache::lonxml::in_redirection() ) ) {
1590: my @possibilities = keys(%available_texts);
1591: my $which =
1592: &Apache::loncommon::languages(\@possibilities) || 'default';
1593: $result = $available_texts{$which};
1594: }
1595: undef(%available_texts);
1596: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1597: return $result;
1598: }
1599:
1600:
1601: sub start_lang {
1602: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1603: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1604: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1605: &Apache::lonxml::startredirection();
1606: }
1607: return '';
1608: }
1609:
1610: sub end_lang {
1611: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1612: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1613: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1614: my $result = &Apache::lonxml::endredirection();
1615: my $which = &Apache::lonxml::get_param('which',$parstack,
1616: $safeeval);
1.431 raeburn 1617: if ($which=~/\w/) {
1618: $available_texts{$which} = $result;
1619: }
1620: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
1621: $safeeval);
1622: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
1623: if ($language=~/\w/) {
1624: $available_texts{$language} = $result;
1625: }
1.427 bisitz 1626: }
1627:
1.397 albertel 1628: }
1629: return '';
1630: }
1631: }
1632:
1.170 www 1633: sub start_instructorcomment {
1.201 albertel 1634: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1635:
1636: my $result;
1637:
1.339 albertel 1638: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1639: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.465.2.1 raeburn 1640: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 1641: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1642: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1643: $parser,$style);
1.170 www 1644: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1645: }
1646: $result='';
1647: } elsif ($target eq 'edit') {
1648: $result .=&Apache::edit::tag_start($target,$token);
1649: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1650: }
1651: return $result;
1652: }
1653:
1654: sub end_instructorcomment {
1.159 albertel 1655: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1656: my $result;
1657: if ($target eq "edit") {
1658: $result.= &Apache::edit::tag_end($target,$token,'');
1659: }
1660: return $result;
1.4 tsai 1661: }
1662:
1663: sub start_while {
1.326 albertel 1664: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1665:
1.160 albertel 1666: my $result;
1.339 albertel 1667: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1668: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1669: my $code = $token->[2]->{'condition'};
1.4 tsai 1670:
1.160 albertel 1671: push( @Apache::structuretags::whileconds, $code);
1672: if (!$Apache::lonxml::default_homework_loaded) {
1673: &Apache::lonxml::default_homework_load($safeeval);
1674: }
1675: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1676: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1677: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1678: push( @Apache::structuretags::whileline, $token->[5]);
1679: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1680: if ( $result ) {
1681: &Apache::lonxml::newparser($parser,\$bodytext);
1682: }
1683: } elsif ($target eq 'edit') {
1684: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1685: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1686: $token,40);
1687: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1688: } elsif ($target eq 'modified') {
1689: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1690: $safeeval,'condition');
1691: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1692: }
1.160 albertel 1693: return $result;
1.4 tsai 1694: }
1695:
1696: sub end_while {
1.159 albertel 1697: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1698: my $result;
1699:
1.339 albertel 1700: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1701: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1702: my $code = pop(@Apache::structuretags::whileconds);
1703: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1704: my $line = pop(@Apache::structuretags::whileline);
1705: my $return = &Apache::run::run($code,$safeeval);
1706: my $starttime=time;
1707: my $error=0;
1708: while ($return) {
1709: if (time-$starttime >
1710: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1711: $return = 0; $error=1; next;
1.161 albertel 1712: }
1713: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1714: if ($target eq 'grade' || $target eq 'answer' ||
1715: $target eq 'analyze') {
1716: # grade/answer/analyze should produce no output but if we
1717: # are redirecting, the redirecter should know what to do
1718: # with the output
1719: if (!$Apache::lonxml::redirection) { undef($result); }
1720: }
1.161 albertel 1721: $return = &Apache::run::run($code,$safeeval);
1722: }
1723: if ($error) {
1.430 bisitz 1724: &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 1725: }
1726: } elsif ($target eq "edit") {
1727: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1728: }
1.160 albertel 1729: return $result;
1.1 albertel 1730: }
1.6 tsai 1731:
1.160 albertel 1732: # <randomlist show="1">
1.6 tsai 1733: # <tag1>..</tag1>
1734: # <tag2>..</tag2>
1735: # <tag3>..</tag3>
1.160 albertel 1736: # ...
1.6 tsai 1737: # </randomlist>
1738: sub start_randomlist {
1.326 albertel 1739: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1740: my $result;
1.339 albertel 1741: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1742: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1743: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1744: my $b_parser= HTML::LCParser->new(\$body);
1745: $b_parser->xml_mode(1);
1746: $b_parser->marked_sections(1);
1.159 albertel 1747: my $b_tok;
1748: my @randomlist;
1749: my $list_item;
1750: while($b_tok = $b_parser->get_token() ) {
1751: if($b_tok->[0] eq 'S') { # start tag
1752: # get content of the tag until matching end tag
1753: # get all text upto the matching tag
1754: # and push the content into @randomlist
1755: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1756: $b_parser);
1757: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1758: push(@randomlist,$list_item);
1759: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1760: # $list_item</b>";
1761: }
1762: if($b_tok->[0] eq 'T') { # text
1763: # what to do with text in between tags?
1764: # print "<b>TEXT $b_tok->[1]</b><br />";
1765: }
1766: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1767: # print "<b>END-TAG $b_tok->[1]</b><br />";
1768: # }
1769: }
1.303 albertel 1770: if (@randomlist) {
1771: my @idx_arr = (0 .. $#randomlist);
1772: &Apache::structuretags::shuffle(\@idx_arr);
1773: my $bodytext = '';
1774: my $show=$#randomlist;
1775: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1776: $showarg--;
1777: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 1778: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
1779: my @currlist;
1780: my $part = $Apache::inputtags::part;
1781: if ($part ne '') {
1782: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
1783: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
1784: if (!(grep(/^\Q$part\E$/,@currlist))) {
1785: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1786: }
1787: } else {
1788: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1789: }
1790: }
1791: }
1.303 albertel 1792: for(0 .. $show) {
1793: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1794: }
1795: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1796: }
1797: } elsif ($target eq 'edit' ) {
1798: $result .=&Apache::edit::tag_start($target,$token);
1799: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1800: $token,5);
1801: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1802: } elsif ($target eq 'modified' ) {
1803: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1804: $safeeval,'show');
1805: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1806: }
1807: return $result;
1.7 tsai 1808: }
1809:
1810: sub shuffle {
1811: my $a=shift;
1812: my $i;
1.303 albertel 1813: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1814: &Apache::response::pushrandomnumber();
1.159 albertel 1815: for($i=@$a;--$i;) {
1816: my $j=int(&Math::Random::random_uniform() * ($i+1));
1817: next if $i == $j;
1818: @$a[$i,$j] = @$a[$j,$i];
1819: }
1.251 albertel 1820: &Apache::response::poprandomnumber();
1.7 tsai 1821: }
1.6 tsai 1822: }
1823:
1824: sub end_randomlist {
1.159 albertel 1825: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1826: my $result;
1827: if ($target eq 'edit' ) {
1828: $result=&Apache::edit::tag_end($target,$token,
1829: 'End Randomly Parsed Block');
1830: }
1831: return $result;
1.6 tsai 1832: }
1833:
1.283 albertel 1834: sub ordered_show_check {
1835: my $last_part=$Apache::inputtags::partlist[-2];
1836: my $in_order=
1837: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1838: my $in_order_show=1;
1839: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1840: $in_order_show=&Apache::response::check_status($last_part);
1841: }
1842: return $in_order_show;
1843: }
1844:
1.465.2.2 raeburn 1845: sub start_startpartmarker {
1846: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1847: my $result='';
1848: if ($target eq 'edit') {
1849: $result=&Apache::edit::tag_start($target,$token);
1850: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
1851: $result.=&Apache::edit::end_table();
1852:
1853: }
1854: return $result;
1855: }
1856:
1857: sub end_startpartmarker {
1858: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1859: my @result;
1860: if ($target eq 'edit') { $result[1]='no'; }
1861: return @result;
1862: }
1863:
1864: sub start_endpartmarker {
1865: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1866: my $result='';
1867: if ($target eq 'edit') {
1868: $result=&Apache::edit::tag_start($target,$token);
1869: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
1870: $result.=&Apache::edit::end_table();
1871:
1872: }
1873: return $result;
1874: }
1875:
1876: sub end_endpartmarker {
1877: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1878: my @result;
1879: if ($target eq 'edit') { $result[1]='no'; }
1880: return @result;
1881: }
1882:
1.11 albertel 1883: sub start_part {
1.326 albertel 1884: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1885: if (!$Apache::lonxml::metamode) {
1886: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1887: # duedates.
1888: }
1.159 albertel 1889: my $result='';
1.386 albertel 1890: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1891: $Apache::inputtags::part=$id;
1.177 albertel 1892: push(@Apache::inputtags::partlist,$id);
1893: @Apache::inputtags::response=();
1.159 albertel 1894: @Apache::inputtags::previous=();
1895: @Apache::inputtags::previous_version=();
1.405 albertel 1896: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 1897: &Apache::response::reset_params();
1898:
1.159 albertel 1899: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1900: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1901: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1902: my $in_order_show=&ordered_show_check();
1.214 albertel 1903: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1904: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1905: &Apache::run::run($expression,$safeeval);
1.159 albertel 1906:
1907: if ($target eq 'meta') {
1.224 www 1908: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1909: return &Apache::response::mandatory_part_meta.
1910: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1911: } elsif ($target eq 'web' || $target eq 'grade' ||
1912: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1913: if ($hidden || !$in_order_show) {
1.326 albertel 1914: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1915: } else {
1916: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1917: push (@Apache::inputtags::status,$status);
1918: my $expression='$external::datestatus="'.$status.'";';
1919: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1920: &Apache::run::run($expression,$safeeval);
1.284 albertel 1921: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1922: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1923: }
1.216 albertel 1924: if (( $status eq 'CLOSED' ) ||
1925: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1926: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1927: ( $status eq 'BANNED') ||
1928: ( $status eq 'UNAVAILABLE') ||
1929: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1930: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1931: $style);
1.159 albertel 1932: if ( $target eq "web" ) {
1.211 albertel 1933: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1934: } elsif ( $target eq 'tex' ) {
1.284 albertel 1935: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1936: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1937: } else {
1.211 albertel 1938: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1939: }
1.159 albertel 1940: }
1941: } else {
1942: if ($target eq 'tex') {
1.284 albertel 1943: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1944: if ($$tagstack[-2] eq 'td') {
1.388 foxr 1945: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1946: } else {
1947: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1948: }
1.195 sakharuk 1949: }
1.159 albertel 1950: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1951: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1952: my @allkeys = split /,/,$allkeys;
1953: my $allow_print_points = 0;
1954: foreach my $partial_key (@allkeys) {
1.230 albertel 1955: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1956: if ($1 ne '0') {$allow_print_points=1;}
1957: }
1958: }
1.275 albertel 1959: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1960: if (defined($maxtries) && $maxtries < 0) {
1961: $allow_print_points=0;
1962: }
1.302 albertel 1963: if (lc($env{'course.'.$env{'request.course.id'}.
1964: '.disableexampointprint'}) eq 'yes') {
1965: $allow_print_points=0;
1966: }
1.463 foxr 1967: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1968: $result .= '\vskip 10mm\fbox{\textit{'.$weight.' pt}}';
1969:
1970: }
1.233 www 1971: } elsif ($target eq 'web') {
1.465.2.7 raeburn 1972: if ($status eq 'CAN_ANSWER') {
1973: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1974: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
1975: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
1976: my $num = scalar(@Apache::inputtags::partlist)-1;
1977: if ($probrandomize eq 'randomizetry') {
1978: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
1979: $result .= &randomizetry_part_header($problemstatus,'none',$num);
1980: } else {
1981: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1982: if ($probrandtries ne $reqtries) {
1983: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
1984: }
1985: }
1986: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
1987: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1988: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
1989: }
1990: }
1.465.2.5 raeburn 1991: $result.='<a name="'.&escape($Apache::inputtags::part).'"></a>';
1.159 albertel 1992: }
1993: }
1994: }
1995: } elsif ($target eq 'edit') {
1996: $result.=&Apache::edit::tag_start($target,$token);
1997: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1998: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1999: ' '.
2000: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2001: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2002: } elsif ($target eq 'modified') {
2003: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2004: $safeeval,'id','display');
1.159 albertel 2005: if ($constructtag) {
1.225 albertel 2006: #limiting ids to only letters numbers, and space
1.224 www 2007: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2008: $result = &Apache::edit::rebuild_tag($token);
2009: }
2010: }
2011: return $result;
1.11 albertel 2012: }
2013:
2014: sub end_part {
1.159 albertel 2015: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2016: &Apache::lonxml::debug("in end_part $target ");
2017: my $status=$Apache::inputtags::status['-1'];
2018: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2019: my $in_order_show=&ordered_show_check();
1.321 albertel 2020: my $result;
2021: if (!$Apache::lonxml::metamode) {
2022: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2023: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2024: }
1.312 albertel 2025: if ($target eq 'grade') {
1.249 albertel 2026: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2027: !$hidden && $in_order_show) {
1.311 foxr 2028: $result.=&Apache::inputtags::grade;
1.249 albertel 2029: } else {
2030: # move any submission data to .hidden
2031: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2032: }
1.283 albertel 2033: } elsif (($target eq 'web' || $target eq 'tex') &&
2034: !$hidden && $in_order_show) {
1.159 albertel 2035: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2036: $target);
1.212 albertel 2037: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
2038: $gradestatus='';
2039: }
1.311 foxr 2040: $result.=$gradestatus;
1.265 sakharuk 2041: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2042: } elsif ($target eq 'edit') {
1.311 foxr 2043: $result.=&Apache::edit::end_table();
1.322 albertel 2044: } elsif ($target eq 'modified') {
2045: $result .= $token->[2];
1.159 albertel 2046: }
2047: pop @Apache::inputtags::status;
2048: $Apache::inputtags::part='';
1.295 albertel 2049: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2050: return $result;
1.11 albertel 2051: }
1.1 albertel 2052:
1.25 albertel 2053: sub start_preduedate {
1.326 albertel 2054: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2055: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2056: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2057: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2058: if (!$Apache::lonhomework::scantronmode &&
2059: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2060: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2061: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2062: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2063: }
1.24 albertel 2064: }
1.159 albertel 2065: return '';
1.24 albertel 2066: }
2067:
1.25 albertel 2068: sub end_preduedate {
1.159 albertel 2069: return '';
1.24 albertel 2070: }
2071:
1.369 foxr 2072: # In all the modes where <postanswerdate> text is
2073: # displayable, all we do is eat up the text between the start/stop
2074: # tags if the conditions are not right to display it.
1.25 albertel 2075: sub start_postanswerdate {
1.326 albertel 2076: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2077: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2078: &Apache::lonnet::allowed('pav',
2079: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2080: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2081: $target eq 'tex' ) {
1.300 albertel 2082: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2083: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2084: (($target eq 'tex') && !$pav)) {
1.326 albertel 2085: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2086: }
2087: }
2088: return '';
1.24 albertel 2089: }
2090:
1.25 albertel 2091: sub end_postanswerdate {
1.159 albertel 2092: return '';
1.24 albertel 2093: }
2094:
1.25 albertel 2095: sub start_notsolved {
1.326 albertel 2096: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2097: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2098: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2099: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2100: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2101: if ($gradestatus =~ /^correct/ &&
2102: &Apache::response::show_answer()) {
1.159 albertel 2103: &Apache::lonxml::debug("skipping");
1.326 albertel 2104: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2105: }
1.24 albertel 2106: }
1.159 albertel 2107: return '';
1.24 albertel 2108: }
2109:
1.25 albertel 2110: sub end_notsolved {
1.159 albertel 2111: return '';
1.24 albertel 2112: }
2113:
2114: sub start_solved {
1.326 albertel 2115: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2116: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2117: $target eq 'tex') {
2118: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2119: if ($gradestatus !~ /^correct/ ||
2120: !&Apache::response::show_answer()) {
1.326 albertel 2121: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2122: }
1.24 albertel 2123: }
1.159 albertel 2124: return '';
1.24 albertel 2125: }
2126:
2127: sub end_solved {
1.248 albertel 2128: return '';
2129: }
2130:
2131: sub start_problemtype {
1.326 albertel 2132: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2133: my $result;
1.339 albertel 2134: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2135: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2136: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2137: if (!defined($mode)) { $mode='show'; }
2138: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2139: my $found=0;
2140: foreach my $type (split(',',$for)) {
2141: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2142: }
2143: if ($mode eq 'show' && !$found) {
1.326 albertel 2144: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2145: }
2146: if ($mode eq 'hide' && $found) {
1.326 albertel 2147: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2148: }
2149: } elsif ($target eq 'edit') {
2150: $result .=&Apache::edit::tag_start($target,$token);
2151: $result.=&Apache::edit::select_arg('Mode:','mode',
2152: [['show','Show'],
2153: ['hide','Hide']]
2154: ,$token);
2155: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
2156: [ ['exam','Exam/Quiz Problem'],
2157: ['survey','Survey'],
1.465 raeburn 2158: ['surveycred','Survey (with credit)'],
2159: ['anonsurvey','Anonymous Survey'],
2160: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2161: ['problem','Homework Problem'],
1.465.2.7 raeburn 2162: ['practice','Practice Problem'],
2163: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2164: ,$token);
2165: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2166: } elsif ($target eq 'modified') {
2167: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2168: $safeeval,'mode','for');
2169: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2170: }
2171: return $result;
2172: }
2173:
2174: sub end_problemtype {
1.159 albertel 2175: return '';
1.24 albertel 2176: }
1.34 albertel 2177:
2178: sub start_startouttext {
1.159 albertel 2179: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2180: my @result=(''.'');
2181: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2182:
2183: my $nesting =
2184: &Apache::lonxml::set_state('outtext',
2185: &Apache::lonxml::get_state('outtext')+1);
2186: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2187: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2188: }
1.159 albertel 2189: return (@result);
1.34 albertel 2190: }
1.159 albertel 2191:
1.34 albertel 2192: sub end_startouttext {
1.326 albertel 2193: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2194: my $result='';
2195: my $text='';
2196: if ($target eq 'edit') {
1.424 foxr 2197: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2198: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 2199: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 2200: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2201: .&Apache::edit::deletelist($target,$token)
1.465.2.4 raeburn 2202: .'</span></td>'
2203: .'<td align="left"><span id="math_'.$areaid.'" />'
2204: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
2205: .'</td>'
2206: .'<td>'
2207: .&Apache::edit::insertlist($target,$token)
2208: .'</td>'
2209: .'<td align="right" valign="top">' .
2210: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2211: &Apache::edit::end_row().
1.362 albertel 2212: &Apache::edit::start_spanning_row()."\n".
1.255 www 2213: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2214: }
2215: if ($target eq 'modified') {
1.219 albertel 2216: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2217: }
2218: if ($target eq 'tex') {
2219: $result .= '\noindent ';
2220: }
2221: return $result;
1.34 albertel 2222: }
1.159 albertel 2223:
1.34 albertel 2224: sub start_endouttext {
1.159 albertel 2225: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2226: my $result='';
2227: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2228: if ($target eq "modified") {
2229: $result='<endouttext />'.
1.377 albertel 2230: &Apache::edit::handle_insertafter('startouttext');
2231: }
1.404 albertel 2232:
2233: my $nesting =
2234: &Apache::lonxml::set_state('outtext',
2235: &Apache::lonxml::get_state('outtext')-1);
2236: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2237: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2238: &Apache::lonxml::set_state('outtext', 0);
2239: }
1.159 albertel 2240: return $result;
1.34 albertel 2241: }
1.159 albertel 2242:
1.34 albertel 2243: sub end_endouttext {
1.159 albertel 2244: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2245: my @result=('','');
2246: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2247: return (@result);
1.34 albertel 2248: }
1.159 albertel 2249:
1.45 albertel 2250: sub delete_startouttext {
1.326 albertel 2251: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2252: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2253: my $text=$$parser['-1']->get_text("/endouttext");
2254: my $ntoken=$$parser['-1']->get_token();
2255: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2256: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2257: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2258: # they did the last time round
2259: &Apache::lonxml::increasedepth($ntoken);
2260: &Apache::lonxml::decreasedepth($ntoken);
2261: return 1;
1.193 www 2262: }
2263:
2264: sub start_simpleeditbutton {
2265: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2266: my $result='';
1.284 albertel 2267: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2268: ($target eq 'web') &&
1.330 albertel 2269: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2270: my $url=$env{'request.noversionuri'};
1.193 www 2271: $url=~s/\?.*$//;
1.367 albertel 2272: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 2273: # Warning makes more sense and is more important on edit screen
1.442 bisitz 2274: # $result='<p class="LC_warning">'
2275: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2276: # .&Apache::loncommon::help_open_topic('Caching')
2277: # .'</p>';
1.451 bisitz 2278: $result.=&Apache::lonhtmlcommon::start_funclist()
2279: .&Apache::lonhtmlcommon::add_item_funclist(
2280: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
2281: .&mt('Edit').'</a>')
2282: .&Apache::lonhtmlcommon::end_funclist();
1.442 bisitz 2283:
1.193 www 2284: }
2285: return $result;
2286: }
2287:
2288: sub end_simpleeditbutton {
2289: return '';
1.45 albertel 2290: }
1.34 albertel 2291:
1.428 raeburn 2292: sub practice_problem_header {
2293: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2294: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2295: '</span>';
2296: }
2297:
1.465.2.7 raeburn 2298: sub randomizetry_problem_header {
2299: my ($problemstatus,$reqtries) = @_;
2300: my ($header,$text);
2301: if ($reqtries > 1) {
2302: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
2303: if (($problemstatus eq 'no') ||
2304: ($problemstatus eq 'no_feedback_ever')) {
2305: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2306: } else {
2307: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2308: }
2309: } else {
2310: $header = &mt('New Problem Variation Each Try');
2311: if (($problemstatus eq 'no') ||
2312: ($problemstatus eq 'no_feedback_ever')) {
2313: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
2314:
2315: } else {
2316: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
2317: }
2318: }
2319: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
2320: '<span class="LC_info">'.$text.'</span><hr />';
2321: }
2322:
2323: sub randomizetry_part_header {
2324: my ($problemstatus,$reqtries,$num) = @_;
2325: my ($header,$text);
2326: if ($reqtries eq 'none') {
2327: $header = &mt('No Question Variation');
2328: $text = &mt('For this question there will no new variation after a try.');
2329: } elsif ($reqtries > 1) {
2330: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
2331: if (($problemstatus eq 'no') ||
2332: ($problemstatus eq 'no_feedback_ever')) {
2333: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2334: } else {
2335: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2336: }
2337: } else {
2338: $header = &mt('New Question Variation For Each Try');
2339: if (($problemstatus eq 'no') ||
2340: ($problemstatus eq 'no_feedback_ever')) {
2341: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
2342: } else {
2343: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
2344: }
2345: }
2346: my $output;
2347: if ($num > 1) {
2348: $output .= '<hr />';
2349: }
2350: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
2351: '<span class="LC_info">'.$text.'</span><br /><br />';
2352: return $output;
2353: }
2354:
1.1 albertel 2355: 1;
2356: __END__
1.435 jms 2357:
2358: =pod
2359:
2360: =back
2361:
2362: =cut
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