Annotation of loncom/homework/structuretags.pm, revision 1.465.2.10
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.465.2.10! raeburn 4: # $Id: structuretags.pm,v 1.465.2.9 2010/12/31 19:24:48 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: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
792: if ($needsrelease) {
793: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
794: if ($curr_required eq '') {
795: &Apache::lonnet::update_released_required($needsrelease);
796: } else {
797: my ($currmajor,$currminor) = split(/\./,$curr_required);
798: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
799: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
800: &Apache::lonnet::update_released_required($needsrelease);
801: }
1.292 raeburn 802: }
803: }
1.285 raeburn 804: }
805: }
1.292 raeburn 806: if (keys (%aggregate) > 0) {
1.289 albertel 807: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 808: $cdomain,$cname);
809: }
1.465.2.3 raeburn 810: if (keys(%anoncounter) > 0) {
1.465.2.8 raeburn 811: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
812: $cdomain,$cname);
1.465.2.3 raeburn 813: }
1.465.2.7 raeburn 814: if (keys(%randtrycounter) > 0) {
1.465.2.8 raeburn 815: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
816: $cdomain,$cname);
1.465.2.7 raeburn 817: }
1.292 raeburn 818: }
1.289 albertel 819:
1.65 albertel 820: sub checkout_msg {
1.211 albertel 821: my %lt=&Apache::lonlocal::texthash(
822: 'resource'=>'The resource needs to be checked out',
823: '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.',
824: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
825: 'checkout'=>'Check out Exam for Viewing',
826: 'checkout?'=>'Check out Exam?');
1.352 albertel 827: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 828: return (<<ENDCHECKOUT);
1.211 albertel 829: <h2>$lt{'resource'}</h2>
830: <p>$lt{'id_expln'}</p>
1.449 bisitz 831: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 832: <form name="checkout" method="post" action="$uri">
1.91 albertel 833: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 834: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 835: </form>
836: ENDCHECKOUT
837: }
838:
1.252 albertel 839: sub firstaccess_msg {
1.253 albertel 840: my ($time,$symb)=@_;
1.414 albertel 841: my $result;
842: my @interval=&Apache::lonnet::EXT("resource.0.interval");
843: if ($interval[1] eq 'map') {
844: my ($map)=&Apache::lonnet::decode_symb($symb);
845: my $foldertitle=&Apache::lonnet::gettitle($map);
846:
847: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.418 bisitz 848: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
849: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
850: ,$foldertitle,$time)."</h2>";
1.414 albertel 851: } elsif ($interval[1] eq 'course') {
852: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.418 bisitz 853: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
854: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
855: ,$course,$time)."</h2>";
1.414 albertel 856: } else {
857: my $title=&Apache::lonnet::gettitle($symb);
1.418 bisitz 858: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.'
859: .' Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
860: ,$title,$time)."</h2>";
1.414 albertel 861: }
1.352 albertel 862: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 863: my $buttontext = &mt('Show Resource');
864: my $timertext = &mt('Start Timer?');
1.414 albertel 865: $result .= (<<ENDCHECKOUT);
1.444 bisitz 866: <form name="markaccess" method="post" action="$uri">
1.252 albertel 867: <input type="hidden" name="markaccess" value="yes" />
1.418 bisitz 868: <input type="button" name="accessbutton" value="$buttontext" onClick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 869: </form>
870: ENDCHECKOUT
1.414 albertel 871: return $result;
1.252 albertel 872: }
873:
1.204 albertel 874: sub init_problem_globals {
875: my ($type)=@_;
876: #initialize globals
1.308 foxr 877: # For problems, we start out in part 0 (outside a <part> tag).
878: # and part 0 is used to describe the main body of the <problem>
879: #
1.204 albertel 880: if ($type eq 'problem') {
881: $Apache::inputtags::part='0';
882: @Apache::inputtags::partlist=('0');
1.405 albertel 883: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 884: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 885:
1.266 albertel 886: } elsif ($type eq 'library') {
1.204 albertel 887: $Apache::inputtags::part='';
888: @Apache::inputtags::partlist=();
1.405 albertel 889: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 890: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 891:
1.304 albertel 892: } elsif ($type eq 'Task') {
893: $Apache::inputtags::part='0';
894: @Apache::inputtags::partlist=('0');
1.405 albertel 895: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 896: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 897: }
898: @Apache::inputtags::responselist = ();
899: @Apache::inputtags::importlist = ();
900: @Apache::inputtags::previous=();
901: @Apache::inputtags::previous_version=();
902: $Apache::structuretags::printanswer='No';
903: @Apache::structuretags::whileconds=();
904: @Apache::structuretags::whilebody=();
905: @Apache::structuretags::whileline=();
906: $Apache::lonhomework::scantronmode=0;
907: undef($Apache::lonhomework::name);
1.358 albertel 908: undef($Apache::lonhomework::default_type);
909: undef($Apache::lonhomework::type);
1.204 albertel 910: }
911:
912: sub reset_problem_globals {
913: my ($type)=@_;
914: undef(%Apache::lonhomework::history);
915: undef(%Apache::lonhomework::results);
916: undef($Apache::inputtags::part);
1.208 albertel 917: #don't undef this, lonhomework.pm takes care of this, we use this to
918: #detect if we try to do 2 problems in one file
919: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 920: undef($Apache::lonhomework::name);
1.358 albertel 921: undef($Apache::lonhomework::default_type);
922: undef($Apache::lonhomework::type);
923: undef($Apache::lonhomework::scantronmode);
924: undef($Apache::lonhomework::ignore_response_errors);
1.405 albertel 925: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 926: }
927:
1.241 albertel 928: sub set_problem_state {
1.240 albertel 929: my ($part)=@_;
1.284 albertel 930: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 931: $Apache::lonhomework::history{"resource.$part.solved"}=
932: 'correct_by_student';
933: }
934: }
935:
1.241 albertel 936: sub get_problem_status {
937: my ($part)=@_;
1.267 albertel 938: my $problem_status;
1.284 albertel 939: if ($env{'request.state'} eq 'construct' &&
940: defined($env{'form.problemstatus'})) {
941: $problem_status=$env{'form.problemstatus'};
1.267 albertel 942: } else {
943: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
944: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 945: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 946: }
947: return $problem_status;
948: }
949:
1.9 albertel 950: sub start_problem {
1.326 albertel 951: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 952:
1.311 foxr 953: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 954: if (!$Apache::lonxml::metamode) {
955: &Apache::lonxml::startredirection();
956: }
1.311 foxr 957:
1.308 foxr 958: # Problems don't nest and we don't allow more than one <problem> in
959: # a .problem file.
960: #
1.184 albertel 961: if ( $Apache::inputtags::part ne '' ||
962: $Apache::lonhomework::parsing_a_problem) {
963: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 964: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 965: return '';
966: }
1.184 albertel 967:
968: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 969: &init_problem_globals('problem');
1.166 albertel 970:
1.284 albertel 971: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 972: $Apache::lonhomework::scantronmode=1;
973: }
1.161 albertel 974:
1.159 albertel 975: if ($target ne 'analyze') {
1.415 raeburn 976: my $type = &Apache::lonnet::EXT('resource.0.type');
977: $Apache::lonhomework::type=$type;
1.284 albertel 978: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 979: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 980: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 981: }
1.332 albertel 982: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 983: }
1.164 albertel 984: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 985: my $uri=$env{'request.uri'};
1.159 albertel 986: if ($uri=~/\.(\w+)$/) {
987: $Apache::lonhomework::type=$1;
988: &Apache::lonxml::debug("Using type of $1");
989: } else {
990: $Apache::lonhomework::type='problem';
991: &Apache::lonxml::debug("Using default type, problem, :$uri:");
992: }
1.87 albertel 993: }
1.301 albertel 994: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 995:
1.363 albertel 996: &initialize_storage();
1.389 albertel 997: if ($target ne 'analyze'
998: && $env{'request.state'} eq 'construct') {
999: &set_problem_state('0');
1000: }
1001:
1.366 albertel 1002: if ($target eq 'web') {
1003: &Apache::lonxml::debug(" grading history ");
1004: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1005: }
1.363 albertel 1006:
1.159 albertel 1007: #added vars to the scripting enviroment
1.213 albertel 1008: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1009: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1010: &Apache::run::run($expression,$safeeval);
1.159 albertel 1011: my $status;
1012: my $accessmsg;
1013:
1.343 albertel 1014: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 1015: my ($result,$form_tag_start);
1.354 albertel 1016: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1017: || $target eq 'edit') {
1.350 albertel 1018: ($result,$form_tag_start) =
1019: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1020: $name);
1021: }
1022:
1.284 albertel 1023: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1024:
1.465.2.7 raeburn 1025: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1026: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1027: $target eq 'tex') {
1028: #handle exam checkout
1029: if ($Apache::lonhomework::type eq 'exam') {
1030: my $token=
1031: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 1032: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 1033: $token=&Apache::lonxml::maketoken();
1034: $Apache::lonhomework::history{"resource.0.outtoken"}=
1035: $token;
1036: }
1.343 albertel 1037: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 1038: }
1.284 albertel 1039: if ($env{'form.markaccess'}) {
1.414 albertel 1040: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1041: &Apache::lonnet::set_first_access($interval[1]);
1.252 albertel 1042: }
1.465.2.7 raeburn 1043:
1044: ($status,$accessmsg,my $slot_name,my $slot) =
1045: &Apache::lonhomework::check_slot_access('0','problem');
1046: push (@Apache::inputtags::status,$status);
1047:
1.159 albertel 1048: #handle rand seed in construction space
1.465.2.7 raeburn 1049: my $rndseed=&setup_rndseed($safeeval,$target);
1.367 albertel 1050: my ($symb)=&Apache::lonnet::whichuser();
1.465.2.7 raeburn 1051:
1.333 albertel 1052: if ($env{'request.state'} ne "construct" &&
1053: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1054: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1055: $rndseed.'" />'.
1056: '<input type="submit" name="resetdata"
1057: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1058: if (exists($env{'form.username'})) {
1059: $form_tag_start.=
1.164 albertel 1060: '<input type="hidden" name="username"
1.284 albertel 1061: value="'.$env{'form.username'}.'" />';
1.334 albertel 1062: }
1.462 raeburn 1063: if ($env{'request.role.adv'}) {
1064: $form_tag_start.= ' <label class="LC_nobreak">'
1065: .'<input type="checkbox" name="showallfoils"';
1066: if (defined($env{'form.showallfoils'})) {
1067: $form_tag_start.=' checked="checked"';
1068: }
1069: $form_tag_start.= ' /> '
1070: .&mt('Show All Foils')
1071: .'</label>';
1072: }
1.417 www 1073: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1074: $form_tag_start.=&practice_problem_header();
1.417 www 1075: }
1.462 raeburn 1076: $form_tag_start.='<hr />';
1.465.2.7 raeburn 1077: } elsif (($env{'request.state'} ne "construct") &&
1078: ($Apache::lonhomework::type eq 'randomizetry') &&
1079: ($status eq 'CAN_ANSWER')) {
1080: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1081: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1082: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1083: }
1.324 albertel 1084:
1.159 albertel 1085: my $expression='$external::datestatus="'.$status.'";';
1086: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1087: &Apache::run::run($expression,$safeeval);
1088: &Apache::lonxml::debug("Got $status");
1.324 albertel 1089:
1.159 albertel 1090: if (( $status eq 'CLOSED' ) ||
1091: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1092: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1093: ( $status eq 'BANNED') ||
1.216 albertel 1094: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1095: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 1096: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1097: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1098: $style);
1.159 albertel 1099: if ( $target eq "web" ) {
1.343 albertel 1100: my $msg;
1.159 albertel 1101: if ($status eq 'UNAVAILABLE') {
1.245 albertel 1102: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.441 raeburn 1103: } elsif ($status eq 'NOT_IN_A_SLOT') {
1104: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.253 albertel 1105: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 1106: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 1107: }
1.216 albertel 1108: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1109: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1110: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1111: $msg.=&checkout_msg();
1.252 albertel 1112: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1113: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1114: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1115: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.159 albertel 1116: }
1117: $result.=$msg.'<br />';
1118: } elsif ($target eq 'tex') {
1.332 albertel 1119: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1120: : '\begin{minipage}{\textwidth}';
1.443 foxr 1121: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1122: $startminipage.'\vskip 0 mm';
1.159 albertel 1123: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1124: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1125: } else {
1.211 albertel 1126: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1127: }
1128: }
1.324 albertel 1129: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1130: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1131: $style);
1.324 albertel 1132: if ($target eq 'web') {
1.375 albertel 1133: $result .=
1134: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1135: } elsif ($target eq 'grade') {
1136: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1137: 'problem');
1138: }
1.159 albertel 1139: } elsif ($target eq 'web') {
1.360 albertel 1140: if ($status eq 'CAN_ANSWER'
1141: && $slot_name ne ''
1142: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
1143: # unproctored slot access, self checkin
1144: &Apache::bridgetask::check_in('problem',undef,undef,
1145: $slot_name);
1146: }
1.368 albertel 1147: $result.="\n $form_tag_start \t".
1.227 albertel 1148: '<input type="hidden" name="submitted" value="yes" />';
1149: # create a page header and exit
1.284 albertel 1150: if ($env{'request.state'} eq "construct") {
1151: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1152: if ($Apache::lonhomework::type eq 'practice') {
1153: $result.= '<input type="submit" name="resetdata" '.
1154: 'value="'.&mt('New Problem Variation').'" />'.
1155: &practice_problem_header().'<hr />';
1156: }
1.227 albertel 1157: }
1158: # if we are viewing someone else preserve that info
1.284 albertel 1159: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1160: foreach my $field ('symb','courseid','domain','username') {
1161: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1162: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1163: }
1.465.2.7 raeburn 1164: foreach my $field ('questiontype','rndseed') {
1165: if ($env{"form.grade_$field"} ne '') {
1166: $result .= '<input type="hidden" name="grade_'.$field.
1167: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1168: }
1169: }
1170:
1.159 albertel 1171: }
1172: } elsif ($target eq 'tex') {
1.319 foxr 1173: $result .= 'INSERTTEXFRONTMATTERHERE';
1174:
1.99 sakharuk 1175: }
1.159 albertel 1176: } elsif ($target eq 'edit') {
1.343 albertel 1177: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1178: $Apache::lonxml::warnings_error_header=
1179: &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 1180: my $temp=&Apache::edit::insertlist($target,$token);
1181: $result.=$temp;
1182: } elsif ($target eq 'modified') {
1183: $result=$token->[4];
1184: } else {
1185: # page_start returned a starting result, delete it if we don't need it
1186: $result = '';
1.99 sakharuk 1187: }
1.159 albertel 1188: return $result;
1.9 albertel 1189: }
1190:
1191: sub end_problem {
1.159 albertel 1192: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1193: my $result;
1.310 foxr 1194:
1.321 albertel 1195: if (!$Apache::lonxml::metamode) {
1196: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1197: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1198: }
1.319 foxr 1199:
1200: if ($target eq 'tex') {
1.321 albertel 1201: # Figure out the front matter and replace the
1202: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1203: # this in end_problem because whether or not we display due
1204: # dates depends on whether due dates have already been
1205: # displayed in the problem parts.
1206:
1.319 foxr 1207: my $frontmatter = '';
1208: my $startminipage = '';
1209: if (not $env{'form.problem_split'}=~/yes/) {
1210: $startminipage = '\begin{minipage}{\textwidth}';
1211: }
1212: my $id = $Apache::inputtags::part;
1213: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1214: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1215: my @packages = split /,/,$packages;
1216: my $allow_print_points = 0;
1217: foreach my $partial_key (@packages) {
1218: if ($partial_key=~m/^part_0$/) {
1219: $allow_print_points=1;
1220: }
1221: }
1222: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1223: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1224: if (lc($env{'course.'.$env{'request.course.id'}.
1225: '.disableexampointprint'}) eq 'yes') {
1226: $allow_print_points=0;
1227: }
1228: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1229: 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 1230: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1231: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1232:
1233: # Figure out what the due date is and if we need to print
1234: # it in the problem header. We have been logging the
1235: # last due date written to file.
1236:
1237: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1238: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1239: my $duedate_text = &mt('Due date: [_1]'
1240: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1241: my $temp_file;
1242: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1243:
1244: # Figure out what the last printed due date is or set it
1245: # to the epoch if no duedates have been printed.
1246:
1247: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1248: if (-e $filename) {
1249: $temp_file = Apache::File->new($filename);
1250: my @due_file = <$temp_file>;
1251: $due_file_content = $due_file[$#due_file];
1252: chomp $due_file_content;
1253: }
1254:
1255: # We display the due date iff it is not the same as the last
1256: # duedate in problem header ($due_file_content), and
1257: # none of our parts displayed a duedate.
1258: #
1259: my $parts_with_displayduedate;
1260: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1261: $parts_with_displayduedate =
1262: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1263: } else {
1264: $parts_with_displayduedate = 0;
1265: }
1266: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1267: $temp_file = Apache::File->new('>'.$filename);
1268: print $temp_file "$duetime\n";
1269: if (not $env{'request.symb'} =~ m/\.page_/) {
1270: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1271: $frontmatter .= $begin_doc.
1.448 bisitz 1272: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1273: } else {
1274: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1275: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1276: $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
1277: }
1.319 foxr 1278: }
1279: } else {
1.448 bisitz 1280: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1281: }
1282: } else {
1283: if (not $env{'request.symb'} =~ m/\.page_/) {
1284: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1285: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1286: $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
1287: }
1.319 foxr 1288: } else {
1.381 albertel 1289: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1290: }
1291: }
1292: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1293: }
1294:
1.159 albertel 1295: my $status=$Apache::inputtags::status['-1'];
1296: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1297: $target eq 'tex') {
1.249 albertel 1298: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1299: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1300: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1301: &Apache::inputtags::grade;
1.324 albertel 1302: } elsif ($status eq 'NEEDS_CHECKIN') {
1303: # no need to grade, and don't want to hide data
1.249 albertel 1304: } else {
1305: # move any submission data to .hidden
1306: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1307: }
1.159 albertel 1308: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1309: $Apache::inputtags::part eq '0' &&
1.252 albertel 1310: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 1311: # if part is zero, no <part>s existed, so we need show the current
1312: # grading status
1313: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1314: $result.= $gradestatus;
1315: }
1316: if (
1.284 albertel 1317: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1318: ($target eq 'answer') || ($target eq 'tex')
1319: ) {
1.227 albertel 1320: if ($target ne 'tex' &&
1.284 albertel 1321: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 1322: $result.="</form>";
1.159 albertel 1323: }
1324: if ($target eq 'web') {
1.346 albertel 1325: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1326: } elsif ($target eq 'tex') {
1.178 sakharuk 1327: my $endminipage = '';
1.284 albertel 1328: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1329: $endminipage = '\end{minipage}';
1330: }
1.284 albertel 1331: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1332: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1333: } else {
1.262 sakharuk 1334: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1335: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1336: $result .= $endminipage.'\end{document} ';
1337: } else {
1.382 albertel 1338: $result .= $endminipage;
1.262 sakharuk 1339: }
1.159 albertel 1340: }
1341: }
1342: }
1343: if ($target eq 'grade') {
1344: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1345: &finalize_storage();
1346: }
1.284 albertel 1347: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1348: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1349: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1350: # normally we get it from above, but in CSTR
1.172 albertel 1351: # we always show answer mode too.
1.159 albertel 1352: }
1353: } elsif ($target eq 'meta') {
1354: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1355: @Apache::inputtags::response=();
1.159 albertel 1356: $result=&Apache::response::mandatory_part_meta;
1357: }
1.215 albertel 1358: $result.=&Apache::response::meta_part_order();
1.258 albertel 1359: $result.=&Apache::response::meta_response_order();
1.159 albertel 1360: } elsif ($target eq 'edit') {
1361: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1362: $result .= &problem_edit_footer();
1.320 albertel 1363: } elsif ($target eq 'modified') {
1364: $result .= $token->[2];
1.159 albertel 1365: }
1.155 albertel 1366:
1.284 albertel 1367: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1368: &Apache::inputtags::check_for_duplicate_ids();
1369: }
1.204 albertel 1370:
1371: &reset_problem_globals('problem');
1.159 albertel 1372:
1373: return $result;
1.48 albertel 1374: }
1375:
1.108 albertel 1376:
1.48 albertel 1377: sub start_library {
1.159 albertel 1378: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1379: my ($result,$form_tag_start);
1.371 albertel 1380: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1381: &init_problem_globals('library');
1382: $Apache::lonhomework::type='problem';
1383: }
1.159 albertel 1384: if ($target eq 'edit') {
1.343 albertel 1385: ($result,$form_tag_start)=
1386: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1387: 'Edit');
1388: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1389: my $temp=&Apache::edit::insertlist($target,$token);
1390: $result.=$temp;
1391: } elsif ($target eq 'modified') {
1392: $result=$token->[4];
1.340 albertel 1393: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1394: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1395: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1396: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1397: ($result,$form_tag_start)=
1398: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1399: $name);
1.465.2.7 raeburn 1400: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 1401: $result.=" \n $form_tag_start".
1.159 albertel 1402: '<input type="hidden" name="submitted" value="yes" />';
1403: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1404: if ($Apache::lonhomework::type eq 'practice') {
1405: $result.= '<input type="submit" name="resetdata" '.
1406: 'value="'.&mt('New Problem Variation').'" />'.
1407: &practice_problem_header().'<hr />';
1408: }
1.159 albertel 1409: }
1410: return $result;
1.48 albertel 1411: }
1412:
1413: sub end_library {
1.159 albertel 1414: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1415: my $result='';
1416: if ($target eq 'edit') {
1417: $result=&problem_edit_footer();
1.371 albertel 1418: } elsif ($target eq 'web'
1419: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1420: && $env{'request.state'} eq "construct") {
1.349 albertel 1421: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1422: }
1.371 albertel 1423: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1424: &reset_problem_globals('library');
1425: }
1.159 albertel 1426: return $result;
1.197 www 1427: }
1428:
1429: sub start_definetag {
1.326 albertel 1430: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1431:
1432: my $result;
1433:
1434: my $name = $token->[2]->{'name'};
1.326 albertel 1435: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1436: if ($target eq 'web') {
1437: if ($name=~/^\//) {
1438: $result=
1439: '<br /><table class="LC_sty_end"><tr><th>'.
1440: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1441: } else {
1442: $result=
1443: '<br /><table class="LC_sty_begin"><tr><th>'.
1444: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1445: }
1446: $skip = &HTML::Entities::encode($skip, '<>&"');
1447: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1448: }
1449: return $result;
1450: }
1451:
1452: sub end_definetag {
1453: return '';
1.1 albertel 1454: }
1455:
1456: sub start_block {
1.201 albertel 1457: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1458:
1459: my $result;
1.1 albertel 1460:
1.339 albertel 1461: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1462: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1463: my $code = $token->[2]->{'condition'};
1.385 albertel 1464: if (defined($code) && $code ne '') {
1.137 albertel 1465: if (!$Apache::lonxml::default_homework_loaded) {
1466: &Apache::lonxml::default_homework_load($safeeval);
1467: }
1.131 albertel 1468: $result = &Apache::run::run($code,$safeeval);
1469: &Apache::lonxml::debug("block :$code: returned :$result:");
1470: } else {
1471: $result='1';
1472: }
1473: if ( ! $result ) {
1.201 albertel 1474: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1475: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1476: }
1477: $result='';
1478: } elsif ($target eq 'edit') {
1479: $result .=&Apache::edit::tag_start($target,$token);
1480: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1481: $token,40);
1482: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1483: } elsif ($target eq 'modified') {
1484: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1485: $safeeval,'condition');
1486: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1487: }
1.131 albertel 1488: return $result;
1.1 albertel 1489: }
1490:
1491: sub end_block {
1.167 www 1492: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1493: my $result;
1494: if ($target eq "edit") {
1495: $result.= &Apache::edit::tag_end($target,$token,'');
1496: }
1497: return $result;
1498: }
1499:
1500: sub start_languageblock {
1.201 albertel 1501: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1502:
1503: my $result;
1504:
1.339 albertel 1505: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1506: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1507: my $include = $token->[2]->{'include'};
1508: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1509: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.394 www 1510: # This should not even happen, since we should at least have the server language
1.398 www 1511: if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
1512: # Now loop over all languages in order of preference
1513: foreach my $preferred_language (@preferred_languages) {
1.394 www 1514: # If the languageblock has no arguments, show the contents
1.399 www 1515: $result=1;
1516: my $found=0;
1.394 www 1517: # Do we have an include argument?
1.398 www 1518: if ($include) {
1.394 www 1519: # If include is specified, by default, don't render the block
1.399 www 1520: $result=0;
1.398 www 1521: foreach my $included_language (split(/\,/,$include)) {
1.394 www 1522: # ... but if my preferred language is included, render it
1.398 www 1523: if ($included_language eq $preferred_language) {
1.399 www 1524: $result=1;
1525: $found=1;
1.398 www 1526: }
1527: }
1528: }
1.394 www 1529: # Do we have an exclude argument?
1.398 www 1530: if ($exclude) {
1.399 www 1531: $result=1;
1.398 www 1532: foreach my $excluded_language (split(/\,/,$exclude)) {
1533: if ($excluded_language eq $preferred_language) {
1.399 www 1534: $result=0;
1535: $found=1;
1.398 www 1536: }
1537: }
1538: }
1.399 www 1539: if ($found) { last; }
1.398 www 1540: }
1.201 albertel 1541: if ( ! $result ) {
1542: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1543: $style);
1544: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1545: }
1546: $result='';
1.167 www 1547: } elsif ($target eq 'edit') {
1548: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1549: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1550: $token,40);
1.211 albertel 1551: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1552: $token,40);
1553: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1554: } elsif ($target eq 'modified') {
1555: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1556: $safeeval,'include',
1557: 'exclude');
1.167 www 1558: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1559: }
1560: return $result;
1561: }
1562:
1563: sub end_languageblock {
1.170 www 1564: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1565: my $result;
1.201 albertel 1566: if ($target eq "edit") {
1.170 www 1567: $result.= &Apache::edit::tag_end($target,$token,'');
1568: }
1569: return $result;
1570: }
1571:
1.397 albertel 1572: {
1573: my %available_texts;
1574: sub start_translated {
1575: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1576: &Apache::lonxml::register('Apache::structuretags',('lang'));
1577: undef(%available_texts);
1578: }
1579:
1580: sub end_translated {
1581: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1582: my $result;
1583: #show the translation on viewable targets
1584: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1585: # or non-viewable targets, if it's embedded in something that
1586: # wants the output
1587: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1588: && &Apache::lonxml::in_redirection() ) ) {
1589: my @possibilities = keys(%available_texts);
1590: my $which =
1591: &Apache::loncommon::languages(\@possibilities) || 'default';
1592: $result = $available_texts{$which};
1593: }
1594: undef(%available_texts);
1595: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1596: return $result;
1597: }
1598:
1599:
1600: sub start_lang {
1601: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1602: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1603: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1604: &Apache::lonxml::startredirection();
1605: }
1606: return '';
1607: }
1608:
1609: sub end_lang {
1610: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1611: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1612: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1613: my $result = &Apache::lonxml::endredirection();
1614: my $which = &Apache::lonxml::get_param('which',$parstack,
1615: $safeeval);
1.431 raeburn 1616: if ($which=~/\w/) {
1617: $available_texts{$which} = $result;
1618: }
1619: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
1620: $safeeval);
1621: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
1622: if ($language=~/\w/) {
1623: $available_texts{$language} = $result;
1624: }
1.427 bisitz 1625: }
1626:
1.397 albertel 1627: }
1628: return '';
1629: }
1630: }
1631:
1.170 www 1632: sub start_instructorcomment {
1.201 albertel 1633: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1634:
1635: my $result;
1636:
1.339 albertel 1637: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1638: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.465.2.1 raeburn 1639: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 1640: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1641: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1642: $parser,$style);
1.170 www 1643: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1644: }
1645: $result='';
1646: } elsif ($target eq 'edit') {
1647: $result .=&Apache::edit::tag_start($target,$token);
1648: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1649: }
1650: return $result;
1651: }
1652:
1653: sub end_instructorcomment {
1.159 albertel 1654: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1655: my $result;
1656: if ($target eq "edit") {
1657: $result.= &Apache::edit::tag_end($target,$token,'');
1658: }
1659: return $result;
1.4 tsai 1660: }
1661:
1662: sub start_while {
1.326 albertel 1663: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1664:
1.160 albertel 1665: my $result;
1.339 albertel 1666: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1667: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1668: my $code = $token->[2]->{'condition'};
1.4 tsai 1669:
1.160 albertel 1670: push( @Apache::structuretags::whileconds, $code);
1671: if (!$Apache::lonxml::default_homework_loaded) {
1672: &Apache::lonxml::default_homework_load($safeeval);
1673: }
1674: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1675: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1676: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1677: push( @Apache::structuretags::whileline, $token->[5]);
1678: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1679: if ( $result ) {
1680: &Apache::lonxml::newparser($parser,\$bodytext);
1681: }
1682: } elsif ($target eq 'edit') {
1683: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1684: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1685: $token,40);
1686: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1687: } elsif ($target eq 'modified') {
1688: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1689: $safeeval,'condition');
1690: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1691: }
1.160 albertel 1692: return $result;
1.4 tsai 1693: }
1694:
1695: sub end_while {
1.159 albertel 1696: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1697: my $result;
1698:
1.339 albertel 1699: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1700: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1701: my $code = pop(@Apache::structuretags::whileconds);
1702: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1703: my $line = pop(@Apache::structuretags::whileline);
1704: my $return = &Apache::run::run($code,$safeeval);
1705: my $starttime=time;
1706: my $error=0;
1707: while ($return) {
1708: if (time-$starttime >
1709: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1710: $return = 0; $error=1; next;
1.161 albertel 1711: }
1712: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1713: if ($target eq 'grade' || $target eq 'answer' ||
1714: $target eq 'analyze') {
1715: # grade/answer/analyze should produce no output but if we
1716: # are redirecting, the redirecter should know what to do
1717: # with the output
1718: if (!$Apache::lonxml::redirection) { undef($result); }
1719: }
1.161 albertel 1720: $return = &Apache::run::run($code,$safeeval);
1721: }
1722: if ($error) {
1.430 bisitz 1723: &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 1724: }
1725: } elsif ($target eq "edit") {
1726: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1727: }
1.160 albertel 1728: return $result;
1.1 albertel 1729: }
1.6 tsai 1730:
1.160 albertel 1731: # <randomlist show="1">
1.6 tsai 1732: # <tag1>..</tag1>
1733: # <tag2>..</tag2>
1734: # <tag3>..</tag3>
1.160 albertel 1735: # ...
1.6 tsai 1736: # </randomlist>
1737: sub start_randomlist {
1.326 albertel 1738: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1739: my $result;
1.339 albertel 1740: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1741: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1742: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1743: my $b_parser= HTML::LCParser->new(\$body);
1744: $b_parser->xml_mode(1);
1745: $b_parser->marked_sections(1);
1.159 albertel 1746: my $b_tok;
1747: my @randomlist;
1748: my $list_item;
1749: while($b_tok = $b_parser->get_token() ) {
1750: if($b_tok->[0] eq 'S') { # start tag
1751: # get content of the tag until matching end tag
1752: # get all text upto the matching tag
1753: # and push the content into @randomlist
1754: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1755: $b_parser);
1756: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1757: push(@randomlist,$list_item);
1758: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1759: # $list_item</b>";
1760: }
1761: if($b_tok->[0] eq 'T') { # text
1762: # what to do with text in between tags?
1763: # print "<b>TEXT $b_tok->[1]</b><br />";
1764: }
1765: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1766: # print "<b>END-TAG $b_tok->[1]</b><br />";
1767: # }
1768: }
1.303 albertel 1769: if (@randomlist) {
1770: my @idx_arr = (0 .. $#randomlist);
1771: &Apache::structuretags::shuffle(\@idx_arr);
1772: my $bodytext = '';
1773: my $show=$#randomlist;
1774: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1775: $showarg--;
1776: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 1777: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
1778: my @currlist;
1779: my $part = $Apache::inputtags::part;
1780: if ($part ne '') {
1781: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
1782: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
1783: if (!(grep(/^\Q$part\E$/,@currlist))) {
1784: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1785: }
1786: } else {
1787: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1788: }
1789: }
1790: }
1.303 albertel 1791: for(0 .. $show) {
1792: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1793: }
1794: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1795: }
1796: } elsif ($target eq 'edit' ) {
1797: $result .=&Apache::edit::tag_start($target,$token);
1798: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1799: $token,5);
1800: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1801: } elsif ($target eq 'modified' ) {
1802: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1803: $safeeval,'show');
1804: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1805: }
1806: return $result;
1.7 tsai 1807: }
1808:
1809: sub shuffle {
1810: my $a=shift;
1811: my $i;
1.303 albertel 1812: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1813: &Apache::response::pushrandomnumber();
1.159 albertel 1814: for($i=@$a;--$i;) {
1815: my $j=int(&Math::Random::random_uniform() * ($i+1));
1816: next if $i == $j;
1817: @$a[$i,$j] = @$a[$j,$i];
1818: }
1.251 albertel 1819: &Apache::response::poprandomnumber();
1.7 tsai 1820: }
1.6 tsai 1821: }
1822:
1823: sub end_randomlist {
1.159 albertel 1824: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1825: my $result;
1826: if ($target eq 'edit' ) {
1827: $result=&Apache::edit::tag_end($target,$token,
1828: 'End Randomly Parsed Block');
1829: }
1830: return $result;
1.6 tsai 1831: }
1832:
1.283 albertel 1833: sub ordered_show_check {
1834: my $last_part=$Apache::inputtags::partlist[-2];
1835: my $in_order=
1836: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1837: my $in_order_show=1;
1838: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1839: $in_order_show=&Apache::response::check_status($last_part);
1840: }
1841: return $in_order_show;
1842: }
1843:
1.465.2.2 raeburn 1844: sub start_startpartmarker {
1845: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1846: my $result='';
1847: if ($target eq 'edit') {
1848: $result=&Apache::edit::tag_start($target,$token);
1849: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
1850: $result.=&Apache::edit::end_table();
1851:
1852: }
1853: return $result;
1854: }
1855:
1856: sub end_startpartmarker {
1857: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1858: my @result;
1859: if ($target eq 'edit') { $result[1]='no'; }
1860: return @result;
1861: }
1862:
1863: sub start_endpartmarker {
1864: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1865: my $result='';
1866: if ($target eq 'edit') {
1867: $result=&Apache::edit::tag_start($target,$token);
1868: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
1869: $result.=&Apache::edit::end_table();
1870:
1871: }
1872: return $result;
1873: }
1874:
1875: sub end_endpartmarker {
1876: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1877: my @result;
1878: if ($target eq 'edit') { $result[1]='no'; }
1879: return @result;
1880: }
1881:
1.11 albertel 1882: sub start_part {
1.326 albertel 1883: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1884: if (!$Apache::lonxml::metamode) {
1885: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1886: # duedates.
1887: }
1.159 albertel 1888: my $result='';
1.386 albertel 1889: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1890: $Apache::inputtags::part=$id;
1.177 albertel 1891: push(@Apache::inputtags::partlist,$id);
1892: @Apache::inputtags::response=();
1.159 albertel 1893: @Apache::inputtags::previous=();
1894: @Apache::inputtags::previous_version=();
1.405 albertel 1895: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 1896: &Apache::response::reset_params();
1897:
1.159 albertel 1898: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1899: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1900: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1901: my $in_order_show=&ordered_show_check();
1.214 albertel 1902: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1903: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1904: &Apache::run::run($expression,$safeeval);
1.159 albertel 1905:
1906: if ($target eq 'meta') {
1.224 www 1907: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1908: return &Apache::response::mandatory_part_meta.
1909: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1910: } elsif ($target eq 'web' || $target eq 'grade' ||
1911: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1912: if ($hidden || !$in_order_show) {
1.326 albertel 1913: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1914: } else {
1915: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1916: push (@Apache::inputtags::status,$status);
1917: my $expression='$external::datestatus="'.$status.'";';
1918: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1919: &Apache::run::run($expression,$safeeval);
1.284 albertel 1920: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1921: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1922: }
1.216 albertel 1923: if (( $status eq 'CLOSED' ) ||
1924: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1925: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1926: ( $status eq 'BANNED') ||
1927: ( $status eq 'UNAVAILABLE') ||
1928: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1929: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1930: $style);
1.159 albertel 1931: if ( $target eq "web" ) {
1.211 albertel 1932: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1933: } elsif ( $target eq 'tex' ) {
1.284 albertel 1934: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1935: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1936: } else {
1.211 albertel 1937: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1938: }
1.159 albertel 1939: }
1940: } else {
1941: if ($target eq 'tex') {
1.284 albertel 1942: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1943: if ($$tagstack[-2] eq 'td') {
1.388 foxr 1944: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1945: } else {
1946: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1947: }
1.195 sakharuk 1948: }
1.159 albertel 1949: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1950: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1951: my @allkeys = split /,/,$allkeys;
1952: my $allow_print_points = 0;
1953: foreach my $partial_key (@allkeys) {
1.230 albertel 1954: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1955: if ($1 ne '0') {$allow_print_points=1;}
1956: }
1957: }
1.275 albertel 1958: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1959: if (defined($maxtries) && $maxtries < 0) {
1960: $allow_print_points=0;
1961: }
1.302 albertel 1962: if (lc($env{'course.'.$env{'request.course.id'}.
1963: '.disableexampointprint'}) eq 'yes') {
1964: $allow_print_points=0;
1965: }
1.463 foxr 1966: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1967: $result .= '\vskip 10mm\fbox{\textit{'.$weight.' pt}}';
1968:
1969: }
1.233 www 1970: } elsif ($target eq 'web') {
1.465.2.7 raeburn 1971: if ($status eq 'CAN_ANSWER') {
1972: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1973: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
1974: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
1975: my $num = scalar(@Apache::inputtags::partlist)-1;
1976: if ($probrandomize eq 'randomizetry') {
1977: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
1978: $result .= &randomizetry_part_header($problemstatus,'none',$num);
1979: } else {
1980: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1981: if ($probrandtries ne $reqtries) {
1982: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
1983: }
1984: }
1985: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
1986: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1987: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
1988: }
1989: }
1.465.2.5 raeburn 1990: $result.='<a name="'.&escape($Apache::inputtags::part).'"></a>';
1.159 albertel 1991: }
1992: }
1993: }
1994: } elsif ($target eq 'edit') {
1995: $result.=&Apache::edit::tag_start($target,$token);
1996: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1997: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1998: ' '.
1999: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2000: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2001: } elsif ($target eq 'modified') {
2002: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2003: $safeeval,'id','display');
1.159 albertel 2004: if ($constructtag) {
1.225 albertel 2005: #limiting ids to only letters numbers, and space
1.224 www 2006: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2007: $result = &Apache::edit::rebuild_tag($token);
2008: }
2009: }
2010: return $result;
1.11 albertel 2011: }
2012:
2013: sub end_part {
1.159 albertel 2014: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2015: &Apache::lonxml::debug("in end_part $target ");
2016: my $status=$Apache::inputtags::status['-1'];
2017: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2018: my $in_order_show=&ordered_show_check();
1.321 albertel 2019: my $result;
2020: if (!$Apache::lonxml::metamode) {
2021: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2022: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2023: }
1.312 albertel 2024: if ($target eq 'grade') {
1.249 albertel 2025: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2026: !$hidden && $in_order_show) {
1.311 foxr 2027: $result.=&Apache::inputtags::grade;
1.249 albertel 2028: } else {
2029: # move any submission data to .hidden
2030: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2031: }
1.283 albertel 2032: } elsif (($target eq 'web' || $target eq 'tex') &&
2033: !$hidden && $in_order_show) {
1.159 albertel 2034: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2035: $target);
1.212 albertel 2036: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
2037: $gradestatus='';
2038: }
1.311 foxr 2039: $result.=$gradestatus;
1.265 sakharuk 2040: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2041: } elsif ($target eq 'edit') {
1.311 foxr 2042: $result.=&Apache::edit::end_table();
1.322 albertel 2043: } elsif ($target eq 'modified') {
2044: $result .= $token->[2];
1.159 albertel 2045: }
2046: pop @Apache::inputtags::status;
2047: $Apache::inputtags::part='';
1.295 albertel 2048: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2049: return $result;
1.11 albertel 2050: }
1.1 albertel 2051:
1.25 albertel 2052: sub start_preduedate {
1.326 albertel 2053: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2054: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2055: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2056: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2057: if (!$Apache::lonhomework::scantronmode &&
2058: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2059: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2060: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2061: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2062: }
1.24 albertel 2063: }
1.159 albertel 2064: return '';
1.24 albertel 2065: }
2066:
1.25 albertel 2067: sub end_preduedate {
1.159 albertel 2068: return '';
1.24 albertel 2069: }
2070:
1.369 foxr 2071: # In all the modes where <postanswerdate> text is
2072: # displayable, all we do is eat up the text between the start/stop
2073: # tags if the conditions are not right to display it.
1.25 albertel 2074: sub start_postanswerdate {
1.326 albertel 2075: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2076: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2077: &Apache::lonnet::allowed('pav',
2078: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2079: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2080: $target eq 'tex' ) {
1.300 albertel 2081: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2082: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2083: (($target eq 'tex') && !$pav)) {
1.326 albertel 2084: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2085: }
2086: }
2087: return '';
1.24 albertel 2088: }
2089:
1.25 albertel 2090: sub end_postanswerdate {
1.159 albertel 2091: return '';
1.24 albertel 2092: }
2093:
1.25 albertel 2094: sub start_notsolved {
1.326 albertel 2095: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2096: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2097: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2098: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2099: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2100: if ($gradestatus =~ /^correct/ &&
2101: &Apache::response::show_answer()) {
1.159 albertel 2102: &Apache::lonxml::debug("skipping");
1.326 albertel 2103: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2104: }
1.24 albertel 2105: }
1.159 albertel 2106: return '';
1.24 albertel 2107: }
2108:
1.25 albertel 2109: sub end_notsolved {
1.159 albertel 2110: return '';
1.24 albertel 2111: }
2112:
2113: sub start_solved {
1.326 albertel 2114: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2115: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2116: $target eq 'tex') {
2117: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2118: if ($gradestatus !~ /^correct/ ||
2119: !&Apache::response::show_answer()) {
1.326 albertel 2120: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2121: }
1.24 albertel 2122: }
1.159 albertel 2123: return '';
1.24 albertel 2124: }
2125:
2126: sub end_solved {
1.248 albertel 2127: return '';
2128: }
2129:
2130: sub start_problemtype {
1.326 albertel 2131: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2132: my $result;
1.339 albertel 2133: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2134: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2135: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2136: if (!defined($mode)) { $mode='show'; }
2137: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2138: my $found=0;
2139: foreach my $type (split(',',$for)) {
2140: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2141: }
2142: if ($mode eq 'show' && !$found) {
1.326 albertel 2143: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2144: }
2145: if ($mode eq 'hide' && $found) {
1.326 albertel 2146: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2147: }
2148: } elsif ($target eq 'edit') {
2149: $result .=&Apache::edit::tag_start($target,$token);
2150: $result.=&Apache::edit::select_arg('Mode:','mode',
2151: [['show','Show'],
2152: ['hide','Hide']]
2153: ,$token);
2154: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
2155: [ ['exam','Exam/Quiz Problem'],
2156: ['survey','Survey'],
1.465 raeburn 2157: ['surveycred','Survey (with credit)'],
2158: ['anonsurvey','Anonymous Survey'],
2159: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2160: ['problem','Homework Problem'],
1.465.2.7 raeburn 2161: ['practice','Practice Problem'],
2162: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2163: ,$token);
2164: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2165: } elsif ($target eq 'modified') {
2166: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2167: $safeeval,'mode','for');
2168: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2169: }
2170: return $result;
2171: }
2172:
2173: sub end_problemtype {
1.159 albertel 2174: return '';
1.24 albertel 2175: }
1.34 albertel 2176:
2177: sub start_startouttext {
1.159 albertel 2178: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2179: my @result=(''.'');
2180: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2181:
2182: my $nesting =
2183: &Apache::lonxml::set_state('outtext',
2184: &Apache::lonxml::get_state('outtext')+1);
2185: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2186: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2187: }
1.159 albertel 2188: return (@result);
1.34 albertel 2189: }
1.159 albertel 2190:
1.34 albertel 2191: sub end_startouttext {
1.326 albertel 2192: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2193: my $result='';
2194: my $text='';
2195: if ($target eq 'edit') {
1.424 foxr 2196: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2197: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 2198: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 2199: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2200: .&Apache::edit::deletelist($target,$token)
1.465.2.4 raeburn 2201: .'</span></td>'
2202: .'<td align="left"><span id="math_'.$areaid.'" />'
2203: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
2204: .'</td>'
2205: .'<td>'
2206: .&Apache::edit::insertlist($target,$token)
2207: .'</td>'
2208: .'<td align="right" valign="top">' .
2209: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2210: &Apache::edit::end_row().
1.362 albertel 2211: &Apache::edit::start_spanning_row()."\n".
1.255 www 2212: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2213: }
2214: if ($target eq 'modified') {
1.219 albertel 2215: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2216: }
2217: if ($target eq 'tex') {
2218: $result .= '\noindent ';
2219: }
2220: return $result;
1.34 albertel 2221: }
1.159 albertel 2222:
1.34 albertel 2223: sub start_endouttext {
1.159 albertel 2224: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2225: my $result='';
2226: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2227: if ($target eq "modified") {
2228: $result='<endouttext />'.
1.377 albertel 2229: &Apache::edit::handle_insertafter('startouttext');
2230: }
1.404 albertel 2231:
2232: my $nesting =
2233: &Apache::lonxml::set_state('outtext',
2234: &Apache::lonxml::get_state('outtext')-1);
2235: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2236: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2237: &Apache::lonxml::set_state('outtext', 0);
2238: }
1.159 albertel 2239: return $result;
1.34 albertel 2240: }
1.159 albertel 2241:
1.34 albertel 2242: sub end_endouttext {
1.159 albertel 2243: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2244: my @result=('','');
2245: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2246: return (@result);
1.34 albertel 2247: }
1.159 albertel 2248:
1.45 albertel 2249: sub delete_startouttext {
1.326 albertel 2250: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2251: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2252: my $text=$$parser['-1']->get_text("/endouttext");
2253: my $ntoken=$$parser['-1']->get_token();
2254: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2255: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2256: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2257: # they did the last time round
2258: &Apache::lonxml::increasedepth($ntoken);
2259: &Apache::lonxml::decreasedepth($ntoken);
2260: return 1;
1.193 www 2261: }
2262:
2263: sub start_simpleeditbutton {
2264: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2265: my $result='';
1.284 albertel 2266: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2267: ($target eq 'web') &&
1.330 albertel 2268: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2269: my $url=$env{'request.noversionuri'};
1.193 www 2270: $url=~s/\?.*$//;
1.367 albertel 2271: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 2272: # Warning makes more sense and is more important on edit screen
1.442 bisitz 2273: # $result='<p class="LC_warning">'
2274: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2275: # .&Apache::loncommon::help_open_topic('Caching')
2276: # .'</p>';
1.451 bisitz 2277: $result.=&Apache::lonhtmlcommon::start_funclist()
2278: .&Apache::lonhtmlcommon::add_item_funclist(
2279: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
2280: .&mt('Edit').'</a>')
2281: .&Apache::lonhtmlcommon::end_funclist();
1.442 bisitz 2282:
1.193 www 2283: }
2284: return $result;
2285: }
2286:
2287: sub end_simpleeditbutton {
2288: return '';
1.45 albertel 2289: }
1.34 albertel 2290:
1.428 raeburn 2291: sub practice_problem_header {
2292: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2293: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2294: '</span>';
2295: }
2296:
1.465.2.7 raeburn 2297: sub randomizetry_problem_header {
2298: my ($problemstatus,$reqtries) = @_;
2299: my ($header,$text);
2300: if ($reqtries > 1) {
2301: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
2302: if (($problemstatus eq 'no') ||
2303: ($problemstatus eq 'no_feedback_ever')) {
2304: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2305: } else {
2306: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2307: }
2308: } else {
2309: $header = &mt('New Problem Variation Each Try');
2310: if (($problemstatus eq 'no') ||
2311: ($problemstatus eq 'no_feedback_ever')) {
2312: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
2313:
2314: } else {
2315: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
2316: }
2317: }
2318: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
2319: '<span class="LC_info">'.$text.'</span><hr />';
2320: }
2321:
2322: sub randomizetry_part_header {
2323: my ($problemstatus,$reqtries,$num) = @_;
2324: my ($header,$text);
2325: if ($reqtries eq 'none') {
2326: $header = &mt('No Question Variation');
2327: $text = &mt('For this question there will no new variation after a try.');
2328: } elsif ($reqtries > 1) {
2329: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
2330: if (($problemstatus eq 'no') ||
2331: ($problemstatus eq 'no_feedback_ever')) {
2332: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2333: } else {
2334: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2335: }
2336: } else {
2337: $header = &mt('New Question Variation For Each Try');
2338: if (($problemstatus eq 'no') ||
2339: ($problemstatus eq 'no_feedback_ever')) {
2340: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
2341: } else {
2342: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
2343: }
2344: }
2345: my $output;
2346: if ($num > 1) {
2347: $output .= '<hr />';
2348: }
2349: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
2350: '<span class="LC_info">'.$text.'</span><br /><br />';
2351: return $output;
2352: }
2353:
1.1 albertel 2354: 1;
2355: __END__
1.435 jms 2356:
2357: =pod
2358:
2359: =back
2360:
2361: =cut
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