Annotation of loncom/homework/structuretags.pm, revision 1.465.2.11
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.465.2.11! raeburn 4: # $Id: structuretags.pm,v 1.465.2.10 2011/01/01 21:54:08 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: }
1.465.2.11! raeburn 898: @Apache::functionplotresponse::callscripts=();
1.204 albertel 899: @Apache::inputtags::responselist = ();
900: @Apache::inputtags::importlist = ();
901: @Apache::inputtags::previous=();
902: @Apache::inputtags::previous_version=();
903: $Apache::structuretags::printanswer='No';
904: @Apache::structuretags::whileconds=();
905: @Apache::structuretags::whilebody=();
906: @Apache::structuretags::whileline=();
907: $Apache::lonhomework::scantronmode=0;
908: undef($Apache::lonhomework::name);
1.358 albertel 909: undef($Apache::lonhomework::default_type);
910: undef($Apache::lonhomework::type);
1.204 albertel 911: }
912:
913: sub reset_problem_globals {
914: my ($type)=@_;
915: undef(%Apache::lonhomework::history);
916: undef(%Apache::lonhomework::results);
917: undef($Apache::inputtags::part);
1.208 albertel 918: #don't undef this, lonhomework.pm takes care of this, we use this to
919: #detect if we try to do 2 problems in one file
920: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 921: undef($Apache::lonhomework::name);
1.358 albertel 922: undef($Apache::lonhomework::default_type);
923: undef($Apache::lonhomework::type);
924: undef($Apache::lonhomework::scantronmode);
925: undef($Apache::lonhomework::ignore_response_errors);
1.465.2.11! raeburn 926: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 927: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 928: }
929:
1.241 albertel 930: sub set_problem_state {
1.240 albertel 931: my ($part)=@_;
1.284 albertel 932: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 933: $Apache::lonhomework::history{"resource.$part.solved"}=
934: 'correct_by_student';
935: }
936: }
937:
1.241 albertel 938: sub get_problem_status {
939: my ($part)=@_;
1.267 albertel 940: my $problem_status;
1.284 albertel 941: if ($env{'request.state'} eq 'construct' &&
942: defined($env{'form.problemstatus'})) {
943: $problem_status=$env{'form.problemstatus'};
1.267 albertel 944: } else {
945: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
946: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 947: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 948: }
949: return $problem_status;
950: }
951:
1.9 albertel 952: sub start_problem {
1.326 albertel 953: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 954:
1.311 foxr 955: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 956: if (!$Apache::lonxml::metamode) {
957: &Apache::lonxml::startredirection();
958: }
1.311 foxr 959:
1.308 foxr 960: # Problems don't nest and we don't allow more than one <problem> in
961: # a .problem file.
962: #
1.184 albertel 963: if ( $Apache::inputtags::part ne '' ||
964: $Apache::lonhomework::parsing_a_problem) {
965: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 966: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 967: return '';
968: }
1.184 albertel 969:
970: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 971: &init_problem_globals('problem');
1.166 albertel 972:
1.284 albertel 973: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 974: $Apache::lonhomework::scantronmode=1;
975: }
1.161 albertel 976:
1.159 albertel 977: if ($target ne 'analyze') {
1.415 raeburn 978: my $type = &Apache::lonnet::EXT('resource.0.type');
979: $Apache::lonhomework::type=$type;
1.284 albertel 980: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 981: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 982: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 983: }
1.332 albertel 984: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 985: }
1.164 albertel 986: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 987: my $uri=$env{'request.uri'};
1.159 albertel 988: if ($uri=~/\.(\w+)$/) {
989: $Apache::lonhomework::type=$1;
990: &Apache::lonxml::debug("Using type of $1");
991: } else {
992: $Apache::lonhomework::type='problem';
993: &Apache::lonxml::debug("Using default type, problem, :$uri:");
994: }
1.87 albertel 995: }
1.301 albertel 996: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 997:
1.363 albertel 998: &initialize_storage();
1.389 albertel 999: if ($target ne 'analyze'
1000: && $env{'request.state'} eq 'construct') {
1001: &set_problem_state('0');
1002: }
1003:
1.366 albertel 1004: if ($target eq 'web') {
1005: &Apache::lonxml::debug(" grading history ");
1006: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1007: }
1.363 albertel 1008:
1.159 albertel 1009: #added vars to the scripting enviroment
1.213 albertel 1010: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1011: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1012: &Apache::run::run($expression,$safeeval);
1.159 albertel 1013: my $status;
1014: my $accessmsg;
1015:
1.343 albertel 1016: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 1017: my ($result,$form_tag_start);
1.354 albertel 1018: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1019: || $target eq 'edit') {
1.350 albertel 1020: ($result,$form_tag_start) =
1021: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1022: $name);
1023: }
1024:
1.284 albertel 1025: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1026:
1.465.2.7 raeburn 1027: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1028: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1029: $target eq 'tex') {
1030: #handle exam checkout
1031: if ($Apache::lonhomework::type eq 'exam') {
1032: my $token=
1033: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 1034: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 1035: $token=&Apache::lonxml::maketoken();
1036: $Apache::lonhomework::history{"resource.0.outtoken"}=
1037: $token;
1038: }
1.343 albertel 1039: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 1040: }
1.284 albertel 1041: if ($env{'form.markaccess'}) {
1.414 albertel 1042: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1043: &Apache::lonnet::set_first_access($interval[1]);
1.252 albertel 1044: }
1.465.2.7 raeburn 1045:
1046: ($status,$accessmsg,my $slot_name,my $slot) =
1047: &Apache::lonhomework::check_slot_access('0','problem');
1048: push (@Apache::inputtags::status,$status);
1049:
1.159 albertel 1050: #handle rand seed in construction space
1.465.2.7 raeburn 1051: my $rndseed=&setup_rndseed($safeeval,$target);
1.367 albertel 1052: my ($symb)=&Apache::lonnet::whichuser();
1.465.2.7 raeburn 1053:
1.333 albertel 1054: if ($env{'request.state'} ne "construct" &&
1055: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1056: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1057: $rndseed.'" />'.
1058: '<input type="submit" name="resetdata"
1059: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1060: if (exists($env{'form.username'})) {
1061: $form_tag_start.=
1.164 albertel 1062: '<input type="hidden" name="username"
1.284 albertel 1063: value="'.$env{'form.username'}.'" />';
1.334 albertel 1064: }
1.462 raeburn 1065: if ($env{'request.role.adv'}) {
1066: $form_tag_start.= ' <label class="LC_nobreak">'
1067: .'<input type="checkbox" name="showallfoils"';
1068: if (defined($env{'form.showallfoils'})) {
1069: $form_tag_start.=' checked="checked"';
1070: }
1071: $form_tag_start.= ' /> '
1072: .&mt('Show All Foils')
1073: .'</label>';
1074: }
1.417 www 1075: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1076: $form_tag_start.=&practice_problem_header();
1.417 www 1077: }
1.462 raeburn 1078: $form_tag_start.='<hr />';
1.465.2.7 raeburn 1079: } elsif (($env{'request.state'} ne "construct") &&
1080: ($Apache::lonhomework::type eq 'randomizetry') &&
1081: ($status eq 'CAN_ANSWER')) {
1082: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1083: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1084: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1085: }
1.324 albertel 1086:
1.159 albertel 1087: my $expression='$external::datestatus="'.$status.'";';
1088: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1089: &Apache::run::run($expression,$safeeval);
1090: &Apache::lonxml::debug("Got $status");
1.324 albertel 1091:
1.159 albertel 1092: if (( $status eq 'CLOSED' ) ||
1093: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1094: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1095: ( $status eq 'BANNED') ||
1.216 albertel 1096: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1097: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 1098: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1099: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1100: $style);
1.159 albertel 1101: if ( $target eq "web" ) {
1.343 albertel 1102: my $msg;
1.159 albertel 1103: if ($status eq 'UNAVAILABLE') {
1.245 albertel 1104: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.441 raeburn 1105: } elsif ($status eq 'NOT_IN_A_SLOT') {
1106: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.253 albertel 1107: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 1108: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 1109: }
1.216 albertel 1110: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1111: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1112: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1113: $msg.=&checkout_msg();
1.252 albertel 1114: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1115: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1116: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1117: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.159 albertel 1118: }
1119: $result.=$msg.'<br />';
1120: } elsif ($target eq 'tex') {
1.332 albertel 1121: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1122: : '\begin{minipage}{\textwidth}';
1.443 foxr 1123: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1124: $startminipage.'\vskip 0 mm';
1.159 albertel 1125: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1126: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1127: } else {
1.211 albertel 1128: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1129: }
1130: }
1.324 albertel 1131: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1132: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1133: $style);
1.324 albertel 1134: if ($target eq 'web') {
1.375 albertel 1135: $result .=
1136: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1137: } elsif ($target eq 'grade') {
1138: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1139: 'problem');
1140: }
1.159 albertel 1141: } elsif ($target eq 'web') {
1.360 albertel 1142: if ($status eq 'CAN_ANSWER'
1143: && $slot_name ne ''
1144: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
1145: # unproctored slot access, self checkin
1146: &Apache::bridgetask::check_in('problem',undef,undef,
1147: $slot_name);
1148: }
1.368 albertel 1149: $result.="\n $form_tag_start \t".
1.227 albertel 1150: '<input type="hidden" name="submitted" value="yes" />';
1151: # create a page header and exit
1.284 albertel 1152: if ($env{'request.state'} eq "construct") {
1153: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1154: if ($Apache::lonhomework::type eq 'practice') {
1155: $result.= '<input type="submit" name="resetdata" '.
1156: 'value="'.&mt('New Problem Variation').'" />'.
1157: &practice_problem_header().'<hr />';
1158: }
1.227 albertel 1159: }
1160: # if we are viewing someone else preserve that info
1.284 albertel 1161: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1162: foreach my $field ('symb','courseid','domain','username') {
1163: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1164: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1165: }
1.465.2.7 raeburn 1166: foreach my $field ('questiontype','rndseed') {
1167: if ($env{"form.grade_$field"} ne '') {
1168: $result .= '<input type="hidden" name="grade_'.$field.
1169: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1170: }
1171: }
1172:
1.159 albertel 1173: }
1174: } elsif ($target eq 'tex') {
1.319 foxr 1175: $result .= 'INSERTTEXFRONTMATTERHERE';
1176:
1.99 sakharuk 1177: }
1.159 albertel 1178: } elsif ($target eq 'edit') {
1.343 albertel 1179: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1180: $Apache::lonxml::warnings_error_header=
1181: &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 1182: my $temp=&Apache::edit::insertlist($target,$token);
1183: $result.=$temp;
1184: } elsif ($target eq 'modified') {
1185: $result=$token->[4];
1186: } else {
1187: # page_start returned a starting result, delete it if we don't need it
1188: $result = '';
1.99 sakharuk 1189: }
1.159 albertel 1190: return $result;
1.9 albertel 1191: }
1192:
1193: sub end_problem {
1.159 albertel 1194: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1195: my $result;
1.310 foxr 1196:
1.321 albertel 1197: if (!$Apache::lonxml::metamode) {
1198: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1199: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1200: }
1.319 foxr 1201:
1202: if ($target eq 'tex') {
1.321 albertel 1203: # Figure out the front matter and replace the
1204: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1205: # this in end_problem because whether or not we display due
1206: # dates depends on whether due dates have already been
1207: # displayed in the problem parts.
1208:
1.319 foxr 1209: my $frontmatter = '';
1210: my $startminipage = '';
1211: if (not $env{'form.problem_split'}=~/yes/) {
1212: $startminipage = '\begin{minipage}{\textwidth}';
1213: }
1214: my $id = $Apache::inputtags::part;
1215: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1216: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1217: my @packages = split /,/,$packages;
1218: my $allow_print_points = 0;
1219: foreach my $partial_key (@packages) {
1220: if ($partial_key=~m/^part_0$/) {
1221: $allow_print_points=1;
1222: }
1223: }
1224: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1225: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1226: if (lc($env{'course.'.$env{'request.course.id'}.
1227: '.disableexampointprint'}) eq 'yes') {
1228: $allow_print_points=0;
1229: }
1230: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1231: 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 1232: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1233: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1234:
1235: # Figure out what the due date is and if we need to print
1236: # it in the problem header. We have been logging the
1237: # last due date written to file.
1238:
1239: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1240: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1241: my $duedate_text = &mt('Due date: [_1]'
1242: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1243: my $temp_file;
1244: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1245:
1246: # Figure out what the last printed due date is or set it
1247: # to the epoch if no duedates have been printed.
1248:
1249: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1250: if (-e $filename) {
1251: $temp_file = Apache::File->new($filename);
1252: my @due_file = <$temp_file>;
1253: $due_file_content = $due_file[$#due_file];
1254: chomp $due_file_content;
1255: }
1256:
1257: # We display the due date iff it is not the same as the last
1258: # duedate in problem header ($due_file_content), and
1259: # none of our parts displayed a duedate.
1260: #
1261: my $parts_with_displayduedate;
1262: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1263: $parts_with_displayduedate =
1264: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1265: } else {
1266: $parts_with_displayduedate = 0;
1267: }
1268: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1269: $temp_file = Apache::File->new('>'.$filename);
1270: print $temp_file "$duetime\n";
1271: if (not $env{'request.symb'} =~ m/\.page_/) {
1272: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1273: $frontmatter .= $begin_doc.
1.448 bisitz 1274: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1275: } else {
1276: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1277: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1278: $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
1279: }
1.319 foxr 1280: }
1281: } else {
1.448 bisitz 1282: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1283: }
1284: } else {
1285: if (not $env{'request.symb'} =~ m/\.page_/) {
1286: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1287: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1288: $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
1289: }
1.319 foxr 1290: } else {
1.381 albertel 1291: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1292: }
1293: }
1294: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1295: }
1296:
1.159 albertel 1297: my $status=$Apache::inputtags::status['-1'];
1298: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1299: $target eq 'tex') {
1.249 albertel 1300: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1301: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1302: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1303: &Apache::inputtags::grade;
1.324 albertel 1304: } elsif ($status eq 'NEEDS_CHECKIN') {
1305: # no need to grade, and don't want to hide data
1.249 albertel 1306: } else {
1307: # move any submission data to .hidden
1308: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1309: }
1.159 albertel 1310: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1311: $Apache::inputtags::part eq '0' &&
1.252 albertel 1312: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 1313: # if part is zero, no <part>s existed, so we need show the current
1314: # grading status
1315: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1316: $result.= $gradestatus;
1317: }
1318: if (
1.284 albertel 1319: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1320: ($target eq 'answer') || ($target eq 'tex')
1321: ) {
1.227 albertel 1322: if ($target ne 'tex' &&
1.284 albertel 1323: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 1324: $result.="</form>";
1.159 albertel 1325: }
1326: if ($target eq 'web') {
1.346 albertel 1327: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1328: } elsif ($target eq 'tex') {
1.178 sakharuk 1329: my $endminipage = '';
1.284 albertel 1330: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1331: $endminipage = '\end{minipage}';
1332: }
1.284 albertel 1333: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1334: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1335: } else {
1.262 sakharuk 1336: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1337: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1338: $result .= $endminipage.'\end{document} ';
1339: } else {
1.382 albertel 1340: $result .= $endminipage;
1.262 sakharuk 1341: }
1.159 albertel 1342: }
1343: }
1344: }
1.465.2.11! raeburn 1345: if ($target eq 'web') {
! 1346: $result.=&Apache::functionplotresponse::init_script();
! 1347: }
1.159 albertel 1348: if ($target eq 'grade') {
1349: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1350: &finalize_storage();
1351: }
1.284 albertel 1352: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1353: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1354: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1355: # normally we get it from above, but in CSTR
1.172 albertel 1356: # we always show answer mode too.
1.159 albertel 1357: }
1358: } elsif ($target eq 'meta') {
1359: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1360: @Apache::inputtags::response=();
1.159 albertel 1361: $result=&Apache::response::mandatory_part_meta;
1362: }
1.215 albertel 1363: $result.=&Apache::response::meta_part_order();
1.258 albertel 1364: $result.=&Apache::response::meta_response_order();
1.159 albertel 1365: } elsif ($target eq 'edit') {
1366: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1367: $result .= &problem_edit_footer();
1.320 albertel 1368: } elsif ($target eq 'modified') {
1369: $result .= $token->[2];
1.159 albertel 1370: }
1.155 albertel 1371:
1.284 albertel 1372: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1373: &Apache::inputtags::check_for_duplicate_ids();
1374: }
1.204 albertel 1375:
1376: &reset_problem_globals('problem');
1.159 albertel 1377:
1378: return $result;
1.48 albertel 1379: }
1380:
1.108 albertel 1381:
1.48 albertel 1382: sub start_library {
1.159 albertel 1383: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1384: my ($result,$form_tag_start);
1.371 albertel 1385: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1386: &init_problem_globals('library');
1387: $Apache::lonhomework::type='problem';
1388: }
1.159 albertel 1389: if ($target eq 'edit') {
1.343 albertel 1390: ($result,$form_tag_start)=
1391: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1392: 'Edit');
1393: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1394: my $temp=&Apache::edit::insertlist($target,$token);
1395: $result.=$temp;
1396: } elsif ($target eq 'modified') {
1397: $result=$token->[4];
1.340 albertel 1398: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1399: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1400: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1401: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1402: ($result,$form_tag_start)=
1403: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1404: $name);
1.465.2.7 raeburn 1405: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 1406: $result.=" \n $form_tag_start".
1.159 albertel 1407: '<input type="hidden" name="submitted" value="yes" />';
1408: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1409: if ($Apache::lonhomework::type eq 'practice') {
1410: $result.= '<input type="submit" name="resetdata" '.
1411: 'value="'.&mt('New Problem Variation').'" />'.
1412: &practice_problem_header().'<hr />';
1413: }
1.159 albertel 1414: }
1415: return $result;
1.48 albertel 1416: }
1417:
1418: sub end_library {
1.159 albertel 1419: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1420: my $result='';
1421: if ($target eq 'edit') {
1422: $result=&problem_edit_footer();
1.371 albertel 1423: } elsif ($target eq 'web'
1424: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1425: && $env{'request.state'} eq "construct") {
1.349 albertel 1426: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1427: }
1.371 albertel 1428: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1429: &reset_problem_globals('library');
1430: }
1.159 albertel 1431: return $result;
1.197 www 1432: }
1433:
1434: sub start_definetag {
1.326 albertel 1435: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1436:
1437: my $result;
1438:
1439: my $name = $token->[2]->{'name'};
1.326 albertel 1440: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1441: if ($target eq 'web') {
1442: if ($name=~/^\//) {
1443: $result=
1444: '<br /><table class="LC_sty_end"><tr><th>'.
1445: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1446: } else {
1447: $result=
1448: '<br /><table class="LC_sty_begin"><tr><th>'.
1449: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1450: }
1451: $skip = &HTML::Entities::encode($skip, '<>&"');
1452: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1453: }
1454: return $result;
1455: }
1456:
1457: sub end_definetag {
1458: return '';
1.1 albertel 1459: }
1460:
1461: sub start_block {
1.201 albertel 1462: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1463:
1464: my $result;
1.1 albertel 1465:
1.339 albertel 1466: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1467: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1468: my $code = $token->[2]->{'condition'};
1.385 albertel 1469: if (defined($code) && $code ne '') {
1.137 albertel 1470: if (!$Apache::lonxml::default_homework_loaded) {
1471: &Apache::lonxml::default_homework_load($safeeval);
1472: }
1.131 albertel 1473: $result = &Apache::run::run($code,$safeeval);
1474: &Apache::lonxml::debug("block :$code: returned :$result:");
1475: } else {
1476: $result='1';
1477: }
1478: if ( ! $result ) {
1.201 albertel 1479: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1480: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1481: }
1482: $result='';
1483: } elsif ($target eq 'edit') {
1484: $result .=&Apache::edit::tag_start($target,$token);
1485: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1486: $token,40);
1487: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1488: } elsif ($target eq 'modified') {
1489: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1490: $safeeval,'condition');
1491: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1492: }
1.131 albertel 1493: return $result;
1.1 albertel 1494: }
1495:
1496: sub end_block {
1.167 www 1497: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1498: my $result;
1499: if ($target eq "edit") {
1500: $result.= &Apache::edit::tag_end($target,$token,'');
1501: }
1502: return $result;
1503: }
1504:
1505: sub start_languageblock {
1.201 albertel 1506: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1507:
1508: my $result;
1509:
1.339 albertel 1510: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1511: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1512: my $include = $token->[2]->{'include'};
1513: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1514: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.394 www 1515: # This should not even happen, since we should at least have the server language
1.398 www 1516: if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
1517: # Now loop over all languages in order of preference
1518: foreach my $preferred_language (@preferred_languages) {
1.394 www 1519: # If the languageblock has no arguments, show the contents
1.399 www 1520: $result=1;
1521: my $found=0;
1.394 www 1522: # Do we have an include argument?
1.398 www 1523: if ($include) {
1.394 www 1524: # If include is specified, by default, don't render the block
1.399 www 1525: $result=0;
1.398 www 1526: foreach my $included_language (split(/\,/,$include)) {
1.394 www 1527: # ... but if my preferred language is included, render it
1.398 www 1528: if ($included_language eq $preferred_language) {
1.399 www 1529: $result=1;
1530: $found=1;
1.398 www 1531: }
1532: }
1533: }
1.394 www 1534: # Do we have an exclude argument?
1.398 www 1535: if ($exclude) {
1.399 www 1536: $result=1;
1.398 www 1537: foreach my $excluded_language (split(/\,/,$exclude)) {
1538: if ($excluded_language eq $preferred_language) {
1.399 www 1539: $result=0;
1540: $found=1;
1.398 www 1541: }
1542: }
1543: }
1.399 www 1544: if ($found) { last; }
1.398 www 1545: }
1.201 albertel 1546: if ( ! $result ) {
1547: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1548: $style);
1549: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1550: }
1551: $result='';
1.167 www 1552: } elsif ($target eq 'edit') {
1553: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1554: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1555: $token,40);
1.211 albertel 1556: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1557: $token,40);
1558: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1559: } elsif ($target eq 'modified') {
1560: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1561: $safeeval,'include',
1562: 'exclude');
1.167 www 1563: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1564: }
1565: return $result;
1566: }
1567:
1568: sub end_languageblock {
1.170 www 1569: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1570: my $result;
1.201 albertel 1571: if ($target eq "edit") {
1.170 www 1572: $result.= &Apache::edit::tag_end($target,$token,'');
1573: }
1574: return $result;
1575: }
1576:
1.397 albertel 1577: {
1578: my %available_texts;
1579: sub start_translated {
1580: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1581: &Apache::lonxml::register('Apache::structuretags',('lang'));
1582: undef(%available_texts);
1583: }
1584:
1585: sub end_translated {
1586: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1587: my $result;
1588: #show the translation on viewable targets
1589: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1590: # or non-viewable targets, if it's embedded in something that
1591: # wants the output
1592: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1593: && &Apache::lonxml::in_redirection() ) ) {
1594: my @possibilities = keys(%available_texts);
1595: my $which =
1596: &Apache::loncommon::languages(\@possibilities) || 'default';
1597: $result = $available_texts{$which};
1598: }
1599: undef(%available_texts);
1600: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1601: return $result;
1602: }
1603:
1604:
1605: sub start_lang {
1606: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1607: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1608: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1609: &Apache::lonxml::startredirection();
1610: }
1611: return '';
1612: }
1613:
1614: sub end_lang {
1615: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1616: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1617: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1618: my $result = &Apache::lonxml::endredirection();
1619: my $which = &Apache::lonxml::get_param('which',$parstack,
1620: $safeeval);
1.431 raeburn 1621: if ($which=~/\w/) {
1622: $available_texts{$which} = $result;
1623: }
1624: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
1625: $safeeval);
1626: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
1627: if ($language=~/\w/) {
1628: $available_texts{$language} = $result;
1629: }
1.427 bisitz 1630: }
1631:
1.397 albertel 1632: }
1633: return '';
1634: }
1635: }
1636:
1.170 www 1637: sub start_instructorcomment {
1.201 albertel 1638: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1639:
1640: my $result;
1641:
1.339 albertel 1642: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1643: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.465.2.1 raeburn 1644: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 1645: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1646: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1647: $parser,$style);
1.170 www 1648: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1649: }
1650: $result='';
1651: } elsif ($target eq 'edit') {
1652: $result .=&Apache::edit::tag_start($target,$token);
1653: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1654: }
1655: return $result;
1656: }
1657:
1658: sub end_instructorcomment {
1.159 albertel 1659: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1660: my $result;
1661: if ($target eq "edit") {
1662: $result.= &Apache::edit::tag_end($target,$token,'');
1663: }
1664: return $result;
1.4 tsai 1665: }
1666:
1667: sub start_while {
1.326 albertel 1668: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1669:
1.160 albertel 1670: my $result;
1.339 albertel 1671: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1672: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1673: my $code = $token->[2]->{'condition'};
1.4 tsai 1674:
1.160 albertel 1675: push( @Apache::structuretags::whileconds, $code);
1676: if (!$Apache::lonxml::default_homework_loaded) {
1677: &Apache::lonxml::default_homework_load($safeeval);
1678: }
1679: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1680: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1681: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1682: push( @Apache::structuretags::whileline, $token->[5]);
1683: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1684: if ( $result ) {
1685: &Apache::lonxml::newparser($parser,\$bodytext);
1686: }
1687: } elsif ($target eq 'edit') {
1688: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1689: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1690: $token,40);
1691: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1692: } elsif ($target eq 'modified') {
1693: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1694: $safeeval,'condition');
1695: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1696: }
1.160 albertel 1697: return $result;
1.4 tsai 1698: }
1699:
1700: sub end_while {
1.159 albertel 1701: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1702: my $result;
1703:
1.339 albertel 1704: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1705: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1706: my $code = pop(@Apache::structuretags::whileconds);
1707: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1708: my $line = pop(@Apache::structuretags::whileline);
1709: my $return = &Apache::run::run($code,$safeeval);
1710: my $starttime=time;
1711: my $error=0;
1712: while ($return) {
1713: if (time-$starttime >
1714: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1715: $return = 0; $error=1; next;
1.161 albertel 1716: }
1717: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1718: if ($target eq 'grade' || $target eq 'answer' ||
1719: $target eq 'analyze') {
1720: # grade/answer/analyze should produce no output but if we
1721: # are redirecting, the redirecter should know what to do
1722: # with the output
1723: if (!$Apache::lonxml::redirection) { undef($result); }
1724: }
1.161 albertel 1725: $return = &Apache::run::run($code,$safeeval);
1726: }
1727: if ($error) {
1.430 bisitz 1728: &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 1729: }
1730: } elsif ($target eq "edit") {
1731: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1732: }
1.160 albertel 1733: return $result;
1.1 albertel 1734: }
1.6 tsai 1735:
1.160 albertel 1736: # <randomlist show="1">
1.6 tsai 1737: # <tag1>..</tag1>
1738: # <tag2>..</tag2>
1739: # <tag3>..</tag3>
1.160 albertel 1740: # ...
1.6 tsai 1741: # </randomlist>
1742: sub start_randomlist {
1.326 albertel 1743: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1744: my $result;
1.339 albertel 1745: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1746: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1747: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1748: my $b_parser= HTML::LCParser->new(\$body);
1749: $b_parser->xml_mode(1);
1750: $b_parser->marked_sections(1);
1.159 albertel 1751: my $b_tok;
1752: my @randomlist;
1753: my $list_item;
1754: while($b_tok = $b_parser->get_token() ) {
1755: if($b_tok->[0] eq 'S') { # start tag
1756: # get content of the tag until matching end tag
1757: # get all text upto the matching tag
1758: # and push the content into @randomlist
1759: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1760: $b_parser);
1761: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1762: push(@randomlist,$list_item);
1763: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1764: # $list_item</b>";
1765: }
1766: if($b_tok->[0] eq 'T') { # text
1767: # what to do with text in between tags?
1768: # print "<b>TEXT $b_tok->[1]</b><br />";
1769: }
1770: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1771: # print "<b>END-TAG $b_tok->[1]</b><br />";
1772: # }
1773: }
1.303 albertel 1774: if (@randomlist) {
1775: my @idx_arr = (0 .. $#randomlist);
1776: &Apache::structuretags::shuffle(\@idx_arr);
1777: my $bodytext = '';
1778: my $show=$#randomlist;
1779: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1780: $showarg--;
1781: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 1782: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
1783: my @currlist;
1784: my $part = $Apache::inputtags::part;
1785: if ($part ne '') {
1786: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
1787: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
1788: if (!(grep(/^\Q$part\E$/,@currlist))) {
1789: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1790: }
1791: } else {
1792: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1793: }
1794: }
1795: }
1.303 albertel 1796: for(0 .. $show) {
1797: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1798: }
1799: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1800: }
1801: } elsif ($target eq 'edit' ) {
1802: $result .=&Apache::edit::tag_start($target,$token);
1803: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1804: $token,5);
1805: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1806: } elsif ($target eq 'modified' ) {
1807: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1808: $safeeval,'show');
1809: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1810: }
1811: return $result;
1.7 tsai 1812: }
1813:
1814: sub shuffle {
1815: my $a=shift;
1816: my $i;
1.303 albertel 1817: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1818: &Apache::response::pushrandomnumber();
1.159 albertel 1819: for($i=@$a;--$i;) {
1820: my $j=int(&Math::Random::random_uniform() * ($i+1));
1821: next if $i == $j;
1822: @$a[$i,$j] = @$a[$j,$i];
1823: }
1.251 albertel 1824: &Apache::response::poprandomnumber();
1.7 tsai 1825: }
1.6 tsai 1826: }
1827:
1828: sub end_randomlist {
1.159 albertel 1829: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1830: my $result;
1831: if ($target eq 'edit' ) {
1832: $result=&Apache::edit::tag_end($target,$token,
1833: 'End Randomly Parsed Block');
1834: }
1835: return $result;
1.6 tsai 1836: }
1837:
1.283 albertel 1838: sub ordered_show_check {
1839: my $last_part=$Apache::inputtags::partlist[-2];
1840: my $in_order=
1841: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1842: my $in_order_show=1;
1843: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1844: $in_order_show=&Apache::response::check_status($last_part);
1845: }
1846: return $in_order_show;
1847: }
1848:
1.465.2.2 raeburn 1849: sub start_startpartmarker {
1850: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1851: my $result='';
1852: if ($target eq 'edit') {
1853: $result=&Apache::edit::tag_start($target,$token);
1854: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
1855: $result.=&Apache::edit::end_table();
1856:
1857: }
1858: return $result;
1859: }
1860:
1861: sub end_startpartmarker {
1862: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1863: my @result;
1864: if ($target eq 'edit') { $result[1]='no'; }
1865: return @result;
1866: }
1867:
1868: sub start_endpartmarker {
1869: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1870: my $result='';
1871: if ($target eq 'edit') {
1872: $result=&Apache::edit::tag_start($target,$token);
1873: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
1874: $result.=&Apache::edit::end_table();
1875:
1876: }
1877: return $result;
1878: }
1879:
1880: sub end_endpartmarker {
1881: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1882: my @result;
1883: if ($target eq 'edit') { $result[1]='no'; }
1884: return @result;
1885: }
1886:
1.11 albertel 1887: sub start_part {
1.326 albertel 1888: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1889: if (!$Apache::lonxml::metamode) {
1890: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1891: # duedates.
1892: }
1.159 albertel 1893: my $result='';
1.386 albertel 1894: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1895: $Apache::inputtags::part=$id;
1.177 albertel 1896: push(@Apache::inputtags::partlist,$id);
1897: @Apache::inputtags::response=();
1.159 albertel 1898: @Apache::inputtags::previous=();
1899: @Apache::inputtags::previous_version=();
1.405 albertel 1900: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 1901: &Apache::response::reset_params();
1902:
1.159 albertel 1903: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1904: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1905: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1906: my $in_order_show=&ordered_show_check();
1.214 albertel 1907: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1908: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1909: &Apache::run::run($expression,$safeeval);
1.159 albertel 1910:
1911: if ($target eq 'meta') {
1.224 www 1912: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1913: return &Apache::response::mandatory_part_meta.
1914: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1915: } elsif ($target eq 'web' || $target eq 'grade' ||
1916: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1917: if ($hidden || !$in_order_show) {
1.326 albertel 1918: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1919: } else {
1920: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1921: push (@Apache::inputtags::status,$status);
1922: my $expression='$external::datestatus="'.$status.'";';
1923: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1924: &Apache::run::run($expression,$safeeval);
1.284 albertel 1925: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1926: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1927: }
1.216 albertel 1928: if (( $status eq 'CLOSED' ) ||
1929: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1930: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1931: ( $status eq 'BANNED') ||
1932: ( $status eq 'UNAVAILABLE') ||
1933: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1934: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1935: $style);
1.159 albertel 1936: if ( $target eq "web" ) {
1.211 albertel 1937: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1938: } elsif ( $target eq 'tex' ) {
1.284 albertel 1939: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1940: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1941: } else {
1.211 albertel 1942: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1943: }
1.159 albertel 1944: }
1945: } else {
1946: if ($target eq 'tex') {
1.284 albertel 1947: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1948: if ($$tagstack[-2] eq 'td') {
1.388 foxr 1949: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1950: } else {
1951: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1952: }
1.195 sakharuk 1953: }
1.159 albertel 1954: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1955: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1956: my @allkeys = split /,/,$allkeys;
1957: my $allow_print_points = 0;
1958: foreach my $partial_key (@allkeys) {
1.230 albertel 1959: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1960: if ($1 ne '0') {$allow_print_points=1;}
1961: }
1962: }
1.275 albertel 1963: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1964: if (defined($maxtries) && $maxtries < 0) {
1965: $allow_print_points=0;
1966: }
1.302 albertel 1967: if (lc($env{'course.'.$env{'request.course.id'}.
1968: '.disableexampointprint'}) eq 'yes') {
1969: $allow_print_points=0;
1970: }
1.463 foxr 1971: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1972: $result .= '\vskip 10mm\fbox{\textit{'.$weight.' pt}}';
1973:
1974: }
1.233 www 1975: } elsif ($target eq 'web') {
1.465.2.7 raeburn 1976: if ($status eq 'CAN_ANSWER') {
1977: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1978: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
1979: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
1980: my $num = scalar(@Apache::inputtags::partlist)-1;
1981: if ($probrandomize eq 'randomizetry') {
1982: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
1983: $result .= &randomizetry_part_header($problemstatus,'none',$num);
1984: } else {
1985: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1986: if ($probrandtries ne $reqtries) {
1987: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
1988: }
1989: }
1990: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
1991: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1992: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
1993: }
1994: }
1.465.2.5 raeburn 1995: $result.='<a name="'.&escape($Apache::inputtags::part).'"></a>';
1.159 albertel 1996: }
1997: }
1998: }
1999: } elsif ($target eq 'edit') {
2000: $result.=&Apache::edit::tag_start($target,$token);
2001: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2002: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2003: ' '.
2004: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2005: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2006: } elsif ($target eq 'modified') {
2007: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2008: $safeeval,'id','display');
1.159 albertel 2009: if ($constructtag) {
1.225 albertel 2010: #limiting ids to only letters numbers, and space
1.224 www 2011: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2012: $result = &Apache::edit::rebuild_tag($token);
2013: }
2014: }
2015: return $result;
1.11 albertel 2016: }
2017:
2018: sub end_part {
1.159 albertel 2019: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2020: &Apache::lonxml::debug("in end_part $target ");
2021: my $status=$Apache::inputtags::status['-1'];
2022: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2023: my $in_order_show=&ordered_show_check();
1.321 albertel 2024: my $result;
2025: if (!$Apache::lonxml::metamode) {
2026: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2027: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2028: }
1.312 albertel 2029: if ($target eq 'grade') {
1.249 albertel 2030: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2031: !$hidden && $in_order_show) {
1.311 foxr 2032: $result.=&Apache::inputtags::grade;
1.249 albertel 2033: } else {
2034: # move any submission data to .hidden
2035: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2036: }
1.283 albertel 2037: } elsif (($target eq 'web' || $target eq 'tex') &&
2038: !$hidden && $in_order_show) {
1.159 albertel 2039: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2040: $target);
1.212 albertel 2041: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
2042: $gradestatus='';
2043: }
1.311 foxr 2044: $result.=$gradestatus;
1.265 sakharuk 2045: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2046: } elsif ($target eq 'edit') {
1.311 foxr 2047: $result.=&Apache::edit::end_table();
1.322 albertel 2048: } elsif ($target eq 'modified') {
2049: $result .= $token->[2];
1.159 albertel 2050: }
2051: pop @Apache::inputtags::status;
2052: $Apache::inputtags::part='';
1.295 albertel 2053: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2054: return $result;
1.11 albertel 2055: }
1.1 albertel 2056:
1.25 albertel 2057: sub start_preduedate {
1.326 albertel 2058: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2059: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2060: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2061: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2062: if (!$Apache::lonhomework::scantronmode &&
2063: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2064: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2065: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2066: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2067: }
1.24 albertel 2068: }
1.159 albertel 2069: return '';
1.24 albertel 2070: }
2071:
1.25 albertel 2072: sub end_preduedate {
1.159 albertel 2073: return '';
1.24 albertel 2074: }
2075:
1.369 foxr 2076: # In all the modes where <postanswerdate> text is
2077: # displayable, all we do is eat up the text between the start/stop
2078: # tags if the conditions are not right to display it.
1.25 albertel 2079: sub start_postanswerdate {
1.326 albertel 2080: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2081: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2082: &Apache::lonnet::allowed('pav',
2083: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2084: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2085: $target eq 'tex' ) {
1.300 albertel 2086: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2087: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2088: (($target eq 'tex') && !$pav)) {
1.326 albertel 2089: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2090: }
2091: }
2092: return '';
1.24 albertel 2093: }
2094:
1.25 albertel 2095: sub end_postanswerdate {
1.159 albertel 2096: return '';
1.24 albertel 2097: }
2098:
1.25 albertel 2099: sub start_notsolved {
1.326 albertel 2100: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2101: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2102: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2103: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2104: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2105: if ($gradestatus =~ /^correct/ &&
2106: &Apache::response::show_answer()) {
1.159 albertel 2107: &Apache::lonxml::debug("skipping");
1.326 albertel 2108: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2109: }
1.24 albertel 2110: }
1.159 albertel 2111: return '';
1.24 albertel 2112: }
2113:
1.25 albertel 2114: sub end_notsolved {
1.159 albertel 2115: return '';
1.24 albertel 2116: }
2117:
2118: sub start_solved {
1.326 albertel 2119: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2120: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2121: $target eq 'tex') {
2122: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2123: if ($gradestatus !~ /^correct/ ||
2124: !&Apache::response::show_answer()) {
1.326 albertel 2125: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2126: }
1.24 albertel 2127: }
1.159 albertel 2128: return '';
1.24 albertel 2129: }
2130:
2131: sub end_solved {
1.248 albertel 2132: return '';
2133: }
2134:
2135: sub start_problemtype {
1.326 albertel 2136: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2137: my $result;
1.339 albertel 2138: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2139: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2140: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2141: if (!defined($mode)) { $mode='show'; }
2142: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2143: my $found=0;
2144: foreach my $type (split(',',$for)) {
2145: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2146: }
2147: if ($mode eq 'show' && !$found) {
1.326 albertel 2148: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2149: }
2150: if ($mode eq 'hide' && $found) {
1.326 albertel 2151: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2152: }
2153: } elsif ($target eq 'edit') {
2154: $result .=&Apache::edit::tag_start($target,$token);
2155: $result.=&Apache::edit::select_arg('Mode:','mode',
2156: [['show','Show'],
2157: ['hide','Hide']]
2158: ,$token);
2159: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
2160: [ ['exam','Exam/Quiz Problem'],
2161: ['survey','Survey'],
1.465 raeburn 2162: ['surveycred','Survey (with credit)'],
2163: ['anonsurvey','Anonymous Survey'],
2164: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2165: ['problem','Homework Problem'],
1.465.2.7 raeburn 2166: ['practice','Practice Problem'],
2167: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2168: ,$token);
2169: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2170: } elsif ($target eq 'modified') {
2171: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2172: $safeeval,'mode','for');
2173: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2174: }
2175: return $result;
2176: }
2177:
2178: sub end_problemtype {
1.159 albertel 2179: return '';
1.24 albertel 2180: }
1.34 albertel 2181:
2182: sub start_startouttext {
1.159 albertel 2183: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2184: my @result=(''.'');
2185: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2186:
2187: my $nesting =
2188: &Apache::lonxml::set_state('outtext',
2189: &Apache::lonxml::get_state('outtext')+1);
2190: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2191: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2192: }
1.159 albertel 2193: return (@result);
1.34 albertel 2194: }
1.159 albertel 2195:
1.34 albertel 2196: sub end_startouttext {
1.326 albertel 2197: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2198: my $result='';
2199: my $text='';
2200: if ($target eq 'edit') {
1.424 foxr 2201: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2202: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 2203: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 2204: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2205: .&Apache::edit::deletelist($target,$token)
1.465.2.4 raeburn 2206: .'</span></td>'
2207: .'<td align="left"><span id="math_'.$areaid.'" />'
2208: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
2209: .'</td>'
2210: .'<td>'
2211: .&Apache::edit::insertlist($target,$token)
2212: .'</td>'
2213: .'<td align="right" valign="top">' .
2214: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2215: &Apache::edit::end_row().
1.362 albertel 2216: &Apache::edit::start_spanning_row()."\n".
1.255 www 2217: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2218: }
2219: if ($target eq 'modified') {
1.219 albertel 2220: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2221: }
2222: if ($target eq 'tex') {
2223: $result .= '\noindent ';
2224: }
2225: return $result;
1.34 albertel 2226: }
1.159 albertel 2227:
1.34 albertel 2228: sub start_endouttext {
1.159 albertel 2229: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2230: my $result='';
2231: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2232: if ($target eq "modified") {
2233: $result='<endouttext />'.
1.377 albertel 2234: &Apache::edit::handle_insertafter('startouttext');
2235: }
1.404 albertel 2236:
2237: my $nesting =
2238: &Apache::lonxml::set_state('outtext',
2239: &Apache::lonxml::get_state('outtext')-1);
2240: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2241: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2242: &Apache::lonxml::set_state('outtext', 0);
2243: }
1.159 albertel 2244: return $result;
1.34 albertel 2245: }
1.159 albertel 2246:
1.34 albertel 2247: sub end_endouttext {
1.159 albertel 2248: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2249: my @result=('','');
2250: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2251: return (@result);
1.34 albertel 2252: }
1.159 albertel 2253:
1.45 albertel 2254: sub delete_startouttext {
1.326 albertel 2255: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2256: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2257: my $text=$$parser['-1']->get_text("/endouttext");
2258: my $ntoken=$$parser['-1']->get_token();
2259: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2260: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2261: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2262: # they did the last time round
2263: &Apache::lonxml::increasedepth($ntoken);
2264: &Apache::lonxml::decreasedepth($ntoken);
2265: return 1;
1.193 www 2266: }
2267:
2268: sub start_simpleeditbutton {
2269: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2270: my $result='';
1.284 albertel 2271: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2272: ($target eq 'web') &&
1.330 albertel 2273: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2274: my $url=$env{'request.noversionuri'};
1.193 www 2275: $url=~s/\?.*$//;
1.367 albertel 2276: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 2277: # Warning makes more sense and is more important on edit screen
1.442 bisitz 2278: # $result='<p class="LC_warning">'
2279: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2280: # .&Apache::loncommon::help_open_topic('Caching')
2281: # .'</p>';
1.451 bisitz 2282: $result.=&Apache::lonhtmlcommon::start_funclist()
2283: .&Apache::lonhtmlcommon::add_item_funclist(
2284: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
2285: .&mt('Edit').'</a>')
2286: .&Apache::lonhtmlcommon::end_funclist();
1.442 bisitz 2287:
1.193 www 2288: }
2289: return $result;
2290: }
2291:
2292: sub end_simpleeditbutton {
2293: return '';
1.45 albertel 2294: }
1.34 albertel 2295:
1.428 raeburn 2296: sub practice_problem_header {
2297: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2298: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2299: '</span>';
2300: }
2301:
1.465.2.7 raeburn 2302: sub randomizetry_problem_header {
2303: my ($problemstatus,$reqtries) = @_;
2304: my ($header,$text);
2305: if ($reqtries > 1) {
2306: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
2307: if (($problemstatus eq 'no') ||
2308: ($problemstatus eq 'no_feedback_ever')) {
2309: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2310: } else {
2311: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2312: }
2313: } else {
2314: $header = &mt('New Problem Variation Each Try');
2315: if (($problemstatus eq 'no') ||
2316: ($problemstatus eq 'no_feedback_ever')) {
2317: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
2318:
2319: } else {
2320: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
2321: }
2322: }
2323: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
2324: '<span class="LC_info">'.$text.'</span><hr />';
2325: }
2326:
2327: sub randomizetry_part_header {
2328: my ($problemstatus,$reqtries,$num) = @_;
2329: my ($header,$text);
2330: if ($reqtries eq 'none') {
2331: $header = &mt('No Question Variation');
2332: $text = &mt('For this question there will no new variation after a try.');
2333: } elsif ($reqtries > 1) {
2334: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
2335: if (($problemstatus eq 'no') ||
2336: ($problemstatus eq 'no_feedback_ever')) {
2337: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2338: } else {
2339: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2340: }
2341: } else {
2342: $header = &mt('New Question Variation For Each Try');
2343: if (($problemstatus eq 'no') ||
2344: ($problemstatus eq 'no_feedback_ever')) {
2345: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
2346: } else {
2347: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
2348: }
2349: }
2350: my $output;
2351: if ($num > 1) {
2352: $output .= '<hr />';
2353: }
2354: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
2355: '<span class="LC_info">'.$text.'</span><br /><br />';
2356: return $output;
2357: }
2358:
1.1 albertel 2359: 1;
2360: __END__
1.435 jms 2361:
2362: =pod
2363:
2364: =back
2365:
2366: =cut
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