Annotation of loncom/homework/structuretags.pm, revision 1.465.2.12
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.465.2.12! raeburn 4: # $Id: structuretags.pm,v 1.465.2.11 2011/01/06 23:06:29 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 {
1.465.2.12! raeburn 166: my $delfilewarn = &mt('You have indicated you wish to remove some files previously included in your submission.').'\\n'.
! 167: &mt('Continue submission with these files removed?');
1.465.2.6 raeburn 168: return <<"ENDSCRIPT";
169: <script type="text/javascript">
1.465.2.9 raeburn 170: // <![CDATA[
1.465.2.6 raeburn 171: function file_deletion_check(formname) {
172: var elemnum = formname.elements.length;
173: if (elemnum == 0) {
174: return true;
175: }
1.465.2.9 raeburn 176: var str = new RegExp("^HWFILE.+_delete\$");
177: var delboxes = new Array();
1.465.2.6 raeburn 178: for (i=0; i<formname.elements.length; i++) {
179: var id = formname.elements[i].id;
180: if (id != '') {
181: if (str.test(id)) {
182: if (formname.elements[i].type == 'checkbox') {
183: if (formname.elements[i].checked) {
1.465.2.9 raeburn 184: delboxes.push(id);
1.465.2.6 raeburn 185: }
186: }
187: }
188: }
189: }
1.465.2.9 raeburn 190: if (delboxes.length > 0) {
1.465.2.6 raeburn 191: if (confirm("$delfilewarn")) {
192: return true;
193: } else {
1.465.2.9 raeburn 194: for (var j=0; j<delboxes.length; j++) {
195: formname.elements[delboxes[j]].checked = false;
196: }
1.465.2.6 raeburn 197: return false;
198: }
199: } else {
200: return true;
201: }
202: }
1.465.2.9 raeburn 203: // ]]>
1.465.2.6 raeburn 204: </script>
205: ENDSCRIPT
206: }
207:
1.48 albertel 208: sub page_start {
1.345 albertel 209: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
210: $extra_head)=@_;
1.159 albertel 211: my %found;
1.207 albertel 212: foreach my $taginside (@$tagstack) {
1.159 albertel 213: foreach my $taglookedfor ('html','body','form') {
214: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
215: }
216: }
217:
1.343 albertel 218: if ($target eq 'tex') {
219: return
220: &Apache::londefdef::start_html($target,$token,$tagstack,
221: $parstack,$parser,$safeeval);
222: }
223:
1.465.2.4 raeburn 224: $extra_head .= &homework_js().
225: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
226: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
227: my %textarea_args = (
228: dragmath => 'math',
229: );
230: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 231: }
1.465.2.6 raeburn 232: my $is_task = ($env{'request.uri'} =~ /\.task$/);
233: if ($is_task) {
234: $extra_head .= &file_delchk_js();
235: }
1.425 raeburn 236:
1.344 albertel 237: my %body_args;
238: if (defined($found{'html'})) {
239: $body_args{'skip_phases'}{'head'}=1;
240: } else {
1.343 albertel 241:
1.345 albertel 242: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 243:
1.379 albertel 244: $extra_head .= &Apache::londefdef::generate_css_links();
245:
1.384 albertel 246: if ($env{'request.state'} eq 'construct') {
1.343 albertel 247: $extra_head.=&Apache::edit::js_change_detection().
248: "<script type=\"text/javascript\">\n".
249: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
250: &Apache::loncommon::browser_and_searcher_javascript().
251: "\n</script>\n";
252: }
1.159 albertel 253: }
1.343 albertel 254:
1.446 bisitz 255: my $pageheader = '';
1.344 albertel 256: if (defined($found{'body'})) {
257: $body_args{'skip_phases'}{'body'}=1;
258: } elsif (!defined($found{'body'})
259: && $env{'request.state'} eq 'construct') {
1.343 albertel 260: if ($target eq 'web' || $target eq 'edit') {
1.402 albertel 261: if ($env{'environment.remote'} ne 'off') {
262: $body_args{'only_body'} = 1;
263: }
1.450 bisitz 264: # Breadcrumbs for Construction Space
265: &Apache::lonhtmlcommon::clear_breadcrumbs();
266: &Apache::lonhtmlcommon::add_breadcrumb({
267: 'text' => 'Construction Space',
268: 'href' => &Apache::loncommon::authorspace(),
269: });
1.460 droeschl 270: # breadcrumbs (and tools) will be created
271: # in start_page->bodytag->innerregister
272:
1.450 bisitz 273: # FIXME Where are we?
274: # &Apache::lonhtmlcommon::add_breadcrumb({
275: # 'text' => 'Problem Editing', # 'Problem Testing'
276: # 'href' => '',
277: # });
1.460 droeschl 278: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 279: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 280: }
1.272 albertel 281: } elsif (!defined($found{'body'})) {
1.343 albertel 282: my %add_entries;
1.159 albertel 283: my $background=&Apache::lonxml::get_param('background',$parstack,
284: $safeeval);
1.343 albertel 285: if ($background ne '' ) {
286: $add_entries{'background'} = $background;
287: }
1.344 albertel 288:
1.290 albertel 289: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
290: $safeeval);
1.446 bisitz 291: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 292:
1.446 bisitz 293: $body_args{'bgcolor'} = $bgcolor;
294: # $body_args{'no_title'} = 1;
295: $body_args{'force_register'} = 1;
296: $body_args{'add_entries'} = \%add_entries;
297: if ($env{'environment.remote'} eq 'off'
298: && $env{'request.state'} eq 'construct') {
299: $body_args{'only_body'} = 1;
300: }
1.344 albertel 301: }
1.365 albertel 302: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 303: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
304: \%body_args);
1.446 bisitz 305: $page_start .= $pageheader;
1.462 raeburn 306: if (!defined($found{'body'})
307: && $env{'request.state'} ne 'construct'
308: && ($target eq 'web' || $target eq 'webgrade')) {
309:
310: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
311: if ($symb eq '' && !$publicuser) {
312: $page_start .= '<p class="LC_info">'
313: .&mt('Browsing resource, all submissions are temporary.')
314: .'</p>';
1.457 bisitz 315: }
1.344 albertel 316: }
317:
1.409 albertel 318: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 319: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 320: }
1.344 albertel 321:
1.159 albertel 322: my $form_tag_start;
323: if (!defined($found{'form'})) {
1.337 albertel 324: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 325: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 326: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 327: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 328: $form_tag_start.=$uri.'" ';
329: if ($target eq 'edit') {
330: $form_tag_start.=&Apache::edit::form_change_detection();
331: }
1.465.2.6 raeburn 332: if ($is_task) {
333: $form_tag_start .= ' onsubmit="return file_deletion_check(this);"';
334: }
1.368 albertel 335: $form_tag_start.='>'."\n";
1.355 albertel 336:
337: my $symb=&Apache::lonnet::symbread();
338: if ($symb =~ /\S/) {
339: $symb=
340: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
341: $form_tag_start.=
1.368 albertel 342: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 343: }
1.159 albertel 344: }
1.343 albertel 345: return ($page_start,$form_tag_start);
1.105 albertel 346: }
347:
1.141 matthew 348: #use Time::HiRes();
1.105 albertel 349: sub get_resource_name {
1.159 albertel 350: my ($parstack,$safeeval)=@_;
1.388 foxr 351: my $name;
1.204 albertel 352: if (defined($Apache::lonhomework::name)) {
1.388 foxr 353: $name = $Apache::lonhomework::name;
354: } else {
355: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 356: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 357: if ($name eq '') {
358: $name=&Apache::lonnet::EXT('resource.title');
359: if ($name eq 'con_lost') { $name = ''; }
360: }
361: if ($name!~/\S+/) {
362: $name=$env{'request.uri'};
363: $name=~s-.*/([^/]+)$-$1-;
364: }
365: # The name has had html tags escaped:
366:
367: $name=~s/</</gs;
368: $name=~s/>/>/gs;
369:
370: $Apache::lonhomework::name=$name;
1.204 albertel 371: }
1.159 albertel 372: return $name;
1.105 albertel 373: }
374:
375: sub setup_rndseed {
1.465.2.7 raeburn 376: my ($safeeval,$target)=@_;
1.367 albertel 377: my ($symb)=&Apache::lonnet::whichuser();
1.465.2.7 raeburn 378: my ($questiontype,$set_safespace,$rndseed);
379: if ($target eq 'analyze') {
380: $questiontype = $env{'form.grade_questiontype'};
381: }
382: unless (defined($questiontype)) {
383: $questiontype = $Apache::lonhomework::type;
384: }
1.333 albertel 385: if ($env{'request.state'} eq "construct"
386: || $symb eq ''
387: || $Apache::lonhomework::type eq 'practice'
388: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 389: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 390: ['rndseed']);
1.284 albertel 391: $rndseed=$env{'form.rndseed'};
1.159 albertel 392: if (!$rndseed) {
1.162 albertel 393: $rndseed=$Apache::lonhomework::history{'rndseed'};
394: if (!$rndseed) {
395: $rndseed=time;
396: }
1.284 albertel 397: $env{'form.rndseed'}=$rndseed;
1.162 albertel 398: }
1.465.2.7 raeburn 399: if (($env{'request.state'} eq "construct") &&
400: ($Apache::lonhomework::type eq 'randomizetry')) {
401: my $tries = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
402: if ($tries) {
403: $rndseed += $tries;
404: }
405: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
406: }
1.374 albertel 407: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
408: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 409: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 410: srand(time);
411: $rndseed=int(rand(2100000000));
1.284 albertel 412: $env{'form.rndseed'}=$rndseed;
413: delete($env{'form.resetdata'});
414: delete($env{'form.newrandomization'});
1.159 albertel 415: }
1.187 albertel 416: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 417: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 418: }
1.247 albertel 419: if ($Apache::lonhomework::history{'resource.CODE'}) {
420: $rndseed=&Apache::lonnet::rndseed();
421: }
1.465.2.7 raeburn 422: $set_safespace = 1;
423: } elsif ($questiontype eq 'randomizetry') {
424: if ($target eq 'analyze') {
425: if (defined($env{'form.grade_rndseed'})) {
426: $rndseed = $env{'form.grade_rndseed'};
427: }
428: }
429: unless (($target eq 'analyze') && (defined($rndseed))) {
430: $rndseed=&Apache::lonnet::rndseed();
431: my $curr_try = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
432: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
433: $curr_try ++;
434: }
435: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
436: $rndseed = $1;
437: }
438: if ($curr_try) {
439: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
440: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
441: my $inc = int(($curr_try-1)/$reqtries);
442: $rndseed += $inc;
443: } else {
444: $rndseed += $curr_try;
445: }
446: }
447: }
448: $set_safespace = 1;
449: }
450: if ($set_safespace) {
451: if ($safeeval) {
452: &Apache::lonxml::debug("Setting rndseed to $rndseed");
453: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
454: }
455: }
456: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
457: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 458: }
459: return $rndseed;
1.105 albertel 460: }
461:
1.268 albertel 462: sub remember_problem_state {
463: return '
1.284 albertel 464: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
465: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
466: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 467: }
468:
1.423 www 469: sub problem_edit_buttons {
470: return '
1.408 albertel 471: <div class="LC_edit_problem_discards">
1.416 raeburn 472: <input type="button" name="submitmode" accesskey="d" value="'.&mt('Discard Edits and View').'" '.
1.423 www 473: ' onclick="javscript:setmode(this.form,'."'discard'".')" />
1.416 raeburn 474: <input '.&Apache::edit::submit_ask_anyway('setmode(this.form,'."'editxml'".')').' type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" />
1.407 albertel 475: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
1.408 albertel 476: </div>
477: <div class="LC_edit_problem_saves">
1.416 raeburn 478: <input type="submit" name="submitbutton" accesskey="s" value="'.&mt('Save and Edit').'" />
479: <input type="submit" name="submitbutton" accesskey="v" value="'.&mt('Save and View').'" />
1.423 www 480: </div>';
481: }
482:
483: sub problem_edit_header {
484: return '<input type="hidden" name="submitted" value="edit" /><input type="hidden" name="problemmode" value="edit" />'.
485: &Apache::structuretags::remember_problem_state().'
486: <div class="LC_edit_problem_header">
487: <div class="LC_edit_problem_header_title">
488: '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
489: </div>'.
490: &problem_edit_buttons().'
1.459 bisitz 491: <hr style="clear:both;" />
1.409 albertel 492: '.&Apache::lonxml::message_location().'
1.408 albertel 493: </div>
494: '.
1.458 bisitz 495: '<table border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
1.105 albertel 496: }
497:
498: sub problem_edit_footer {
1.412 albertel 499: return '</td></tr></table><br />
500: <div class="LC_edit_problem_footer">
1.453 bisitz 501: <hr />'.
1.423 www 502: &problem_edit_buttons().'
1.459 bisitz 503: <hr style="clear:both;" />
1.412 albertel 504: </div>
505: '.
1.342 albertel 506: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 507: }
508:
1.235 albertel 509: sub option {
510: my ($value,$name) = @_;
511: my $result ="<option value='".$value."' ";
1.284 albertel 512: if ($env{'form.'.$name} eq $value) {
1.235 albertel 513: $result.=" selected='on' ";
514: }
515: $result.='>';
516: return $result;
517: }
518:
1.105 albertel 519: sub problem_web_to_edit_header {
1.159 albertel 520: my ($rndseed)=@_;
1.406 albertel 521: my $result .= '<div class="LC_edit_problem_header">';
522:
523: if (!$Apache::lonhomework::parsing_a_task) {
524: $result .=
525: '<div class="LC_edit_problem_header_title">'.
526: &mt('Problem Testing').
527: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
528: '</div>';
529: } else {
530: $result .=
531: '<div class="LC_edit_problem_header_title">'.
532: &mt('Task Testing').
533: '</div>';
534: }
535:
1.315 albertel 536: my $show_all_foils_text =
537: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 538: &mt('Show All Instances')
539: : &mt('Show All Foils');
1.315 albertel 540:
1.452 bisitz 541: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
542: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 543: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 544: $show_all.= ' /> '.$show_all_foils_text
545: .'</label></span>';
1.406 albertel 546:
547:
1.384 albertel 548:
1.406 albertel 549: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 550: if (!$Apache::lonhomework::parsing_a_task) {
551: $result.="
1.406 albertel 552: <div class='LC_edit_problem_header_row1'>
553: <span class=\"LC_nobreak\">
1.405 albertel 554: ".&mt("Problem Status:")."
1.235 albertel 555: <select name='problemstate'>
1.270 albertel 556: <option value=''></option>
1.235 albertel 557: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
558: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
559: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
560: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
561: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
562: </select>
1.406 albertel 563: </span>
564: <span class=\"LC_nobreak\">
1.405 albertel 565: ".&mt("Problem Type:")."
1.235 albertel 566: <select name='problemtype'>
1.270 albertel 567: <option value=''></option>
1.242 albertel 568: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 569: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 570: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 571: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
572: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
573: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 574: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.465.2.7 raeburn 575: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 576: </select>
1.406 albertel 577: </span>
578: $show_all
579: </div>
580: <div class='LC_edit_problem_header_row2'>
581: <span class=\"LC_nobreak\">
1.405 albertel 582: ".&mt("Feedback Mode:")."
1.235 albertel 583: <select name='problemstatus'>
584: <option value=''></option>
1.242 albertel 585: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.405 albertel 586: ".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
587: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 588: </select>
1.406 albertel 589: </span>
590: ";
591:
1.376 albertel 592: } elsif ($Apache::lonhomework::parsing_a_task) {
593: $result.="
1.406 albertel 594: <div class='LC_edit_problem_header_row1'>
595: <span class=\"LC_nobreak\">
1.405 albertel 596: ".&mt("Problem Status:")."
1.376 albertel 597: <select name='problemstate'>
598: <option value=''></option>
599: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
600: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
601: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
602: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
603: </select>
1.406 albertel 604: </span>
605: $show_all
606: ";
607: }
608: $result.='
609: <span class="LC_nobreak">
610: '.&mt('Apply style file: ').'
611: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
612: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
613: </span>
1.422 www 614: </div>
615: <div class="LC_edit_problem_header_row1">'.
616: &Apache::lonxml::renderingoptions().'
1.406 albertel 617: </div>
618: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
619: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
620: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
621: </div>
1.453 bisitz 622: <hr />
1.406 albertel 623: <div class="LC_edit_problem_header_randomize_row">
624: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
625: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
626: <input type="text" name="rndseed" size="10" value="'.
627: $rndseed.'"
628: onchange="javascript:document.lonhomework.changerandseed.click()" />';
629:
630: if (!$Apache::lonhomework::parsing_a_task) {
631: my $numtoanalyze=$env{'form.numtoanalyze'};
632: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 633: $result .= '<span class="LC_nobreak">'.
634: &mt('[_1] for [_2] versions.',
1.416 raeburn 635: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 636: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
637: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 638: $numtoanalyze.'" size="5" />').
639: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
640: '</span>';
641:
1.313 albertel 642: }
1.406 albertel 643:
644: $result.='
645: </div>
1.453 bisitz 646: <hr />
1.447 bisitz 647: <div>';
1.416 raeburn 648: $result.='<input type="hidden" name="problemmode" value="view" />';
649: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
650: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
651: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
652: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 653: $result.='
654: </div>
1.453 bisitz 655: <hr />
1.409 albertel 656: '.&Apache::lonxml::message_location().'
1.406 albertel 657: </div>';
1.159 albertel 658: return $result;
1.48 albertel 659: }
660:
1.65 albertel 661: sub initialize_storage {
1.357 albertel 662: my ($given_symb) = @_;
1.353 albertel 663: undef(%Apache::lonhomework::results);
664: undef(%Apache::lonhomework::history);
1.357 albertel 665: my ($symb,$courseid,$domain,$name) =
1.367 albertel 666: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 667:
668: # anonymous users (CODEd exams) have no data
669: if ($name eq 'anonymous'
670: && !defined($domain)) {
671: return;
672: }
673:
1.333 albertel 674: if ($env{'request.state'} eq 'construct'
675: || $symb eq ''
676: || $Apache::lonhomework::type eq 'practice') {
677:
678: my $namespace = $symb || $env{'request.uri'};
679: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 680: ($env{'form.resetdata'} eq &mt('New Problem Variation')
681: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 682: $env{'form.newrandomization'} eq &mt('New Randomization')) {
683: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
684: &Apache::lonxml::debug("Attempt reset");
685: }
1.159 albertel 686: %Apache::lonhomework::history=
1.333 albertel 687: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 688: my ($temp)=keys %Apache::lonhomework::history ;
689: &Apache::lonxml::debug("Return message of $temp");
690: } else {
691: %Apache::lonhomework::history=
692: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
693: }
1.353 albertel 694:
1.159 albertel 695: #ignore error conditions
1.67 albertel 696: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 697: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 698: }
699:
1.435 jms 700: =pod
701:
702: =item finalize_storage()
703:
704: Stores away the result has to a student's environment
705: checks form.grade_ for specific values, other wises stores
706: to the running users environment
707: Will increment totals for attempts, students, and corrects
708: if running user has student role.
709:
710: =cut
711:
712:
1.65 albertel 713: sub finalize_storage {
1.357 albertel 714: my ($given_symb) = @_;
1.159 albertel 715: my $result;
1.289 albertel 716: if (%Apache::lonhomework::results) {
1.323 albertel 717: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
718: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 719: my ($symb,$courseid,$domain,$name) =
1.367 albertel 720: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 721: if ($env{'request.state'} eq 'construct'
722: || $symb eq ''
723: || $Apache::lonhomework::type eq 'practice') {
724: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 725: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 726: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 727: $namespace,'',$domain,$name);
1.159 albertel 728: &Apache::lonxml::debug('Construct Store return message:'.$result);
729: } else {
730: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
731: $symb,$courseid,$domain,$name);
732: &Apache::lonxml::debug('Store return message:'.$result);
1.465.2.3 raeburn 733: &store_aggregates($symb,$courseid);
1.159 albertel 734: }
1.323 albertel 735: } else {
736: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 737: }
1.159 albertel 738: return $result;
1.65 albertel 739: }
740:
1.435 jms 741: =pod
742:
743: item store_aggregates()
744:
745: Sends hash of values to be incremented in nohist_resourcetracker.db
746: for the course. Increments total number of attempts, unique students
747: and corrects for each part for an instance of a problem, as appropriate.
748:
749: =cut
750:
1.285 raeburn 751: sub store_aggregates {
752: my ($symb,$courseid) = @_;
1.465.2.7 raeburn 753: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 754: my @parts;
1.288 albertel 755: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
756: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 757: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 758: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 759: push(@parts, $1);
1.285 raeburn 760: }
761: }
1.286 albertel 762: foreach my $part (@parts) {
1.465.2.3 raeburn 763: if ($env{'request.role'} =~/^st/) {
764: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
765: eq 'APPROX_ANS' ||
766: $Apache::lonhomework::results{'resource.'.$part.'.award'}
767: eq 'EXACT_ANS') {
768: $aggregate{$symb."\0".$part."\0correct"} = 1;
769: }
770: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
771: $aggregate{$symb."\0".$part."\0users"} = 1;
772: } else {
773: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
774: if ($last_reset) {
775: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
776: $aggregate{$symb."\0".$part."\0users"} = 1;
777: }
778: }
779: }
780: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 781: }
1.465.2.3 raeburn 782: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.465.2.7 raeburn 783: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
784: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
785: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
786: $randtrycounter{$symb."\0".$part} = 1;
787: } else {
788: $anoncounter{$symb."\0".$part} = 1;
789: }
1.465.2.3 raeburn 790: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
791: if ($needsrelease) {
792: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
793: if ($curr_required eq '') {
794: &Apache::lonnet::update_released_required($needsrelease);
795: } else {
796: my ($currmajor,$currminor) = split(/\./,$curr_required);
797: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
798: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
799: &Apache::lonnet::update_released_required($needsrelease);
800: }
1.292 raeburn 801: }
802: }
1.285 raeburn 803: }
804: }
1.292 raeburn 805: if (keys (%aggregate) > 0) {
1.289 albertel 806: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 807: $cdomain,$cname);
808: }
1.465.2.3 raeburn 809: if (keys(%anoncounter) > 0) {
1.465.2.8 raeburn 810: &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
811: $cdomain,$cname);
1.465.2.3 raeburn 812: }
1.465.2.7 raeburn 813: if (keys(%randtrycounter) > 0) {
1.465.2.8 raeburn 814: &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
815: $cdomain,$cname);
1.465.2.7 raeburn 816: }
1.292 raeburn 817: }
1.289 albertel 818:
1.65 albertel 819: sub checkout_msg {
1.211 albertel 820: my %lt=&Apache::lonlocal::texthash(
821: 'resource'=>'The resource needs to be checked out',
822: '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.',
823: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
824: 'checkout'=>'Check out Exam for Viewing',
825: 'checkout?'=>'Check out Exam?');
1.352 albertel 826: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 827: return (<<ENDCHECKOUT);
1.211 albertel 828: <h2>$lt{'resource'}</h2>
829: <p>$lt{'id_expln'}</p>
1.449 bisitz 830: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 831: <form name="checkout" method="post" action="$uri">
1.91 albertel 832: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 833: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 834: </form>
835: ENDCHECKOUT
836: }
837:
1.252 albertel 838: sub firstaccess_msg {
1.253 albertel 839: my ($time,$symb)=@_;
1.414 albertel 840: my $result;
841: my @interval=&Apache::lonnet::EXT("resource.0.interval");
842: if ($interval[1] eq 'map') {
843: my ($map)=&Apache::lonnet::decode_symb($symb);
844: my $foldertitle=&Apache::lonnet::gettitle($map);
845:
846: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.418 bisitz 847: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
848: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
849: ,$foldertitle,$time)."</h2>";
1.414 albertel 850: } elsif ($interval[1] eq 'course') {
851: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.418 bisitz 852: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
853: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
854: ,$course,$time)."</h2>";
1.414 albertel 855: } else {
856: my $title=&Apache::lonnet::gettitle($symb);
1.418 bisitz 857: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.'
858: .' Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
859: ,$title,$time)."</h2>";
1.414 albertel 860: }
1.352 albertel 861: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 862: my $buttontext = &mt('Show Resource');
863: my $timertext = &mt('Start Timer?');
1.414 albertel 864: $result .= (<<ENDCHECKOUT);
1.444 bisitz 865: <form name="markaccess" method="post" action="$uri">
1.252 albertel 866: <input type="hidden" name="markaccess" value="yes" />
1.418 bisitz 867: <input type="button" name="accessbutton" value="$buttontext" onClick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 868: </form>
869: ENDCHECKOUT
1.414 albertel 870: return $result;
1.252 albertel 871: }
872:
1.204 albertel 873: sub init_problem_globals {
874: my ($type)=@_;
875: #initialize globals
1.308 foxr 876: # For problems, we start out in part 0 (outside a <part> tag).
877: # and part 0 is used to describe the main body of the <problem>
878: #
1.204 albertel 879: if ($type eq 'problem') {
880: $Apache::inputtags::part='0';
881: @Apache::inputtags::partlist=('0');
1.405 albertel 882: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 883: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 884:
1.266 albertel 885: } elsif ($type eq 'library') {
1.204 albertel 886: $Apache::inputtags::part='';
887: @Apache::inputtags::partlist=();
1.405 albertel 888: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 889: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 890:
1.304 albertel 891: } elsif ($type eq 'Task') {
892: $Apache::inputtags::part='0';
893: @Apache::inputtags::partlist=('0');
1.405 albertel 894: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 895: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 896: }
1.465.2.11 raeburn 897: @Apache::functionplotresponse::callscripts=();
1.204 albertel 898: @Apache::inputtags::responselist = ();
899: @Apache::inputtags::importlist = ();
900: @Apache::inputtags::previous=();
901: @Apache::inputtags::previous_version=();
902: $Apache::structuretags::printanswer='No';
903: @Apache::structuretags::whileconds=();
904: @Apache::structuretags::whilebody=();
905: @Apache::structuretags::whileline=();
906: $Apache::lonhomework::scantronmode=0;
907: undef($Apache::lonhomework::name);
1.358 albertel 908: undef($Apache::lonhomework::default_type);
909: undef($Apache::lonhomework::type);
1.204 albertel 910: }
911:
912: sub reset_problem_globals {
913: my ($type)=@_;
914: undef(%Apache::lonhomework::history);
915: undef(%Apache::lonhomework::results);
916: undef($Apache::inputtags::part);
1.208 albertel 917: #don't undef this, lonhomework.pm takes care of this, we use this to
918: #detect if we try to do 2 problems in one file
919: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 920: undef($Apache::lonhomework::name);
1.358 albertel 921: undef($Apache::lonhomework::default_type);
922: undef($Apache::lonhomework::type);
923: undef($Apache::lonhomework::scantronmode);
924: undef($Apache::lonhomework::ignore_response_errors);
1.465.2.11 raeburn 925: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 926: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 927: }
928:
1.241 albertel 929: sub set_problem_state {
1.240 albertel 930: my ($part)=@_;
1.284 albertel 931: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 932: $Apache::lonhomework::history{"resource.$part.solved"}=
933: 'correct_by_student';
934: }
935: }
936:
1.241 albertel 937: sub get_problem_status {
938: my ($part)=@_;
1.267 albertel 939: my $problem_status;
1.284 albertel 940: if ($env{'request.state'} eq 'construct' &&
941: defined($env{'form.problemstatus'})) {
942: $problem_status=$env{'form.problemstatus'};
1.267 albertel 943: } else {
944: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
945: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 946: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 947: }
948: return $problem_status;
949: }
950:
1.9 albertel 951: sub start_problem {
1.326 albertel 952: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 953:
1.311 foxr 954: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 955: if (!$Apache::lonxml::metamode) {
956: &Apache::lonxml::startredirection();
957: }
1.311 foxr 958:
1.308 foxr 959: # Problems don't nest and we don't allow more than one <problem> in
960: # a .problem file.
961: #
1.184 albertel 962: if ( $Apache::inputtags::part ne '' ||
963: $Apache::lonhomework::parsing_a_problem) {
964: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 965: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 966: return '';
967: }
1.184 albertel 968:
969: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 970: &init_problem_globals('problem');
1.166 albertel 971:
1.284 albertel 972: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 973: $Apache::lonhomework::scantronmode=1;
974: }
1.161 albertel 975:
1.159 albertel 976: if ($target ne 'analyze') {
1.415 raeburn 977: my $type = &Apache::lonnet::EXT('resource.0.type');
978: $Apache::lonhomework::type=$type;
1.284 albertel 979: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 980: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 981: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 982: }
1.332 albertel 983: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 984: }
1.164 albertel 985: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 986: my $uri=$env{'request.uri'};
1.159 albertel 987: if ($uri=~/\.(\w+)$/) {
988: $Apache::lonhomework::type=$1;
989: &Apache::lonxml::debug("Using type of $1");
990: } else {
991: $Apache::lonhomework::type='problem';
992: &Apache::lonxml::debug("Using default type, problem, :$uri:");
993: }
1.87 albertel 994: }
1.301 albertel 995: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 996:
1.363 albertel 997: &initialize_storage();
1.389 albertel 998: if ($target ne 'analyze'
999: && $env{'request.state'} eq 'construct') {
1000: &set_problem_state('0');
1001: }
1002:
1.366 albertel 1003: if ($target eq 'web') {
1004: &Apache::lonxml::debug(" grading history ");
1005: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1006: }
1.363 albertel 1007:
1.159 albertel 1008: #added vars to the scripting enviroment
1.213 albertel 1009: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1010: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1011: &Apache::run::run($expression,$safeeval);
1.159 albertel 1012: my $status;
1013: my $accessmsg;
1014:
1.343 albertel 1015: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 1016: my ($result,$form_tag_start);
1.354 albertel 1017: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1018: || $target eq 'edit') {
1.350 albertel 1019: ($result,$form_tag_start) =
1020: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1021: $name);
1022: }
1023:
1.284 albertel 1024: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1025:
1.465.2.7 raeburn 1026: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1027: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1028: $target eq 'tex') {
1029: #handle exam checkout
1030: if ($Apache::lonhomework::type eq 'exam') {
1031: my $token=
1032: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 1033: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 1034: $token=&Apache::lonxml::maketoken();
1035: $Apache::lonhomework::history{"resource.0.outtoken"}=
1036: $token;
1037: }
1.343 albertel 1038: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 1039: }
1.284 albertel 1040: if ($env{'form.markaccess'}) {
1.414 albertel 1041: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1042: &Apache::lonnet::set_first_access($interval[1]);
1.252 albertel 1043: }
1.465.2.7 raeburn 1044:
1045: ($status,$accessmsg,my $slot_name,my $slot) =
1046: &Apache::lonhomework::check_slot_access('0','problem');
1047: push (@Apache::inputtags::status,$status);
1048:
1.159 albertel 1049: #handle rand seed in construction space
1.465.2.7 raeburn 1050: my $rndseed=&setup_rndseed($safeeval,$target);
1.367 albertel 1051: my ($symb)=&Apache::lonnet::whichuser();
1.465.2.7 raeburn 1052:
1.333 albertel 1053: if ($env{'request.state'} ne "construct" &&
1054: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1055: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1056: $rndseed.'" />'.
1057: '<input type="submit" name="resetdata"
1058: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1059: if (exists($env{'form.username'})) {
1060: $form_tag_start.=
1.164 albertel 1061: '<input type="hidden" name="username"
1.284 albertel 1062: value="'.$env{'form.username'}.'" />';
1.334 albertel 1063: }
1.462 raeburn 1064: if ($env{'request.role.adv'}) {
1065: $form_tag_start.= ' <label class="LC_nobreak">'
1066: .'<input type="checkbox" name="showallfoils"';
1067: if (defined($env{'form.showallfoils'})) {
1068: $form_tag_start.=' checked="checked"';
1069: }
1070: $form_tag_start.= ' /> '
1071: .&mt('Show All Foils')
1072: .'</label>';
1073: }
1.417 www 1074: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1075: $form_tag_start.=&practice_problem_header();
1.417 www 1076: }
1.462 raeburn 1077: $form_tag_start.='<hr />';
1.465.2.7 raeburn 1078: } elsif (($env{'request.state'} ne "construct") &&
1079: ($Apache::lonhomework::type eq 'randomizetry') &&
1080: ($status eq 'CAN_ANSWER')) {
1081: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1082: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1083: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
1084: }
1.324 albertel 1085:
1.159 albertel 1086: my $expression='$external::datestatus="'.$status.'";';
1087: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1088: &Apache::run::run($expression,$safeeval);
1089: &Apache::lonxml::debug("Got $status");
1.324 albertel 1090:
1.159 albertel 1091: if (( $status eq 'CLOSED' ) ||
1092: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1093: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1094: ( $status eq 'BANNED') ||
1.216 albertel 1095: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1096: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 1097: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1098: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1099: $style);
1.159 albertel 1100: if ( $target eq "web" ) {
1.343 albertel 1101: my $msg;
1.159 albertel 1102: if ($status eq 'UNAVAILABLE') {
1.245 albertel 1103: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.441 raeburn 1104: } elsif ($status eq 'NOT_IN_A_SLOT') {
1105: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.253 albertel 1106: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 1107: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 1108: }
1.216 albertel 1109: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1110: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1111: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1112: $msg.=&checkout_msg();
1.252 albertel 1113: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1114: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1115: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1116: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.159 albertel 1117: }
1118: $result.=$msg.'<br />';
1119: } elsif ($target eq 'tex') {
1.332 albertel 1120: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1121: : '\begin{minipage}{\textwidth}';
1.443 foxr 1122: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1123: $startminipage.'\vskip 0 mm';
1.159 albertel 1124: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1125: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1126: } else {
1.211 albertel 1127: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1128: }
1129: }
1.324 albertel 1130: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1131: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1132: $style);
1.324 albertel 1133: if ($target eq 'web') {
1.375 albertel 1134: $result .=
1135: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1136: } elsif ($target eq 'grade') {
1137: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1138: 'problem');
1139: }
1.159 albertel 1140: } elsif ($target eq 'web') {
1.360 albertel 1141: if ($status eq 'CAN_ANSWER'
1142: && $slot_name ne ''
1143: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
1144: # unproctored slot access, self checkin
1145: &Apache::bridgetask::check_in('problem',undef,undef,
1146: $slot_name);
1147: }
1.368 albertel 1148: $result.="\n $form_tag_start \t".
1.227 albertel 1149: '<input type="hidden" name="submitted" value="yes" />';
1150: # create a page header and exit
1.284 albertel 1151: if ($env{'request.state'} eq "construct") {
1152: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1153: if ($Apache::lonhomework::type eq 'practice') {
1154: $result.= '<input type="submit" name="resetdata" '.
1155: 'value="'.&mt('New Problem Variation').'" />'.
1156: &practice_problem_header().'<hr />';
1157: }
1.227 albertel 1158: }
1159: # if we are viewing someone else preserve that info
1.284 albertel 1160: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1161: foreach my $field ('symb','courseid','domain','username') {
1162: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1163: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1164: }
1.465.2.7 raeburn 1165: foreach my $field ('questiontype','rndseed') {
1166: if ($env{"form.grade_$field"} ne '') {
1167: $result .= '<input type="hidden" name="grade_'.$field.
1168: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1169: }
1170: }
1171:
1.159 albertel 1172: }
1173: } elsif ($target eq 'tex') {
1.319 foxr 1174: $result .= 'INSERTTEXFRONTMATTERHERE';
1175:
1.99 sakharuk 1176: }
1.159 albertel 1177: } elsif ($target eq 'edit') {
1.343 albertel 1178: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1179: $Apache::lonxml::warnings_error_header=
1180: &mt("Editor Errors - these errors might not effect the running of the problem, but they will likely cause problems with further use of the Edit mode. Please use the EditXML mode to fix these errors.")."<br />";
1.159 albertel 1181: my $temp=&Apache::edit::insertlist($target,$token);
1182: $result.=$temp;
1183: } elsif ($target eq 'modified') {
1184: $result=$token->[4];
1185: } else {
1186: # page_start returned a starting result, delete it if we don't need it
1187: $result = '';
1.99 sakharuk 1188: }
1.159 albertel 1189: return $result;
1.9 albertel 1190: }
1191:
1192: sub end_problem {
1.159 albertel 1193: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1194: my $result;
1.310 foxr 1195:
1.321 albertel 1196: if (!$Apache::lonxml::metamode) {
1197: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1198: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1199: }
1.319 foxr 1200:
1201: if ($target eq 'tex') {
1.321 albertel 1202: # Figure out the front matter and replace the
1203: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1204: # this in end_problem because whether or not we display due
1205: # dates depends on whether due dates have already been
1206: # displayed in the problem parts.
1207:
1.319 foxr 1208: my $frontmatter = '';
1209: my $startminipage = '';
1210: if (not $env{'form.problem_split'}=~/yes/) {
1211: $startminipage = '\begin{minipage}{\textwidth}';
1212: }
1213: my $id = $Apache::inputtags::part;
1214: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1215: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1216: my @packages = split /,/,$packages;
1217: my $allow_print_points = 0;
1218: foreach my $partial_key (@packages) {
1219: if ($partial_key=~m/^part_0$/) {
1220: $allow_print_points=1;
1221: }
1222: }
1223: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1224: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1225: if (lc($env{'course.'.$env{'request.course.id'}.
1226: '.disableexampointprint'}) eq 'yes') {
1227: $allow_print_points=0;
1228: }
1229: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1230: my $begin_doc=' \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$env{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent ';
1.319 foxr 1231: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1232: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1233:
1234: # Figure out what the due date is and if we need to print
1235: # it in the problem header. We have been logging the
1236: # last due date written to file.
1237:
1238: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1239: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1240: my $duedate_text = &mt('Due date: [_1]'
1241: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1242: my $temp_file;
1243: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1244:
1245: # Figure out what the last printed due date is or set it
1246: # to the epoch if no duedates have been printed.
1247:
1248: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1249: if (-e $filename) {
1250: $temp_file = Apache::File->new($filename);
1251: my @due_file = <$temp_file>;
1252: $due_file_content = $due_file[$#due_file];
1253: chomp $due_file_content;
1254: }
1255:
1256: # We display the due date iff it is not the same as the last
1257: # duedate in problem header ($due_file_content), and
1258: # none of our parts displayed a duedate.
1259: #
1260: my $parts_with_displayduedate;
1261: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1262: $parts_with_displayduedate =
1263: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1264: } else {
1265: $parts_with_displayduedate = 0;
1266: }
1267: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1268: $temp_file = Apache::File->new('>'.$filename);
1269: print $temp_file "$duetime\n";
1270: if (not $env{'request.symb'} =~ m/\.page_/) {
1271: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1272: $frontmatter .= $begin_doc.
1.448 bisitz 1273: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1274: } else {
1275: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1276: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1277: $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
1278: }
1.319 foxr 1279: }
1280: } else {
1.448 bisitz 1281: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1282: }
1283: } else {
1284: if (not $env{'request.symb'} =~ m/\.page_/) {
1285: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1286: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1287: $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
1288: }
1.319 foxr 1289: } else {
1.381 albertel 1290: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1291: }
1292: }
1293: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1294: }
1295:
1.159 albertel 1296: my $status=$Apache::inputtags::status['-1'];
1297: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1298: $target eq 'tex') {
1.249 albertel 1299: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1300: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1301: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1302: &Apache::inputtags::grade;
1.324 albertel 1303: } elsif ($status eq 'NEEDS_CHECKIN') {
1304: # no need to grade, and don't want to hide data
1.249 albertel 1305: } else {
1306: # move any submission data to .hidden
1307: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1308: }
1.159 albertel 1309: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1310: $Apache::inputtags::part eq '0' &&
1.252 albertel 1311: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 1312: # if part is zero, no <part>s existed, so we need show the current
1313: # grading status
1314: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1315: $result.= $gradestatus;
1316: }
1317: if (
1.284 albertel 1318: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1319: ($target eq 'answer') || ($target eq 'tex')
1320: ) {
1.227 albertel 1321: if ($target ne 'tex' &&
1.284 albertel 1322: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 1323: $result.="</form>";
1.159 albertel 1324: }
1325: if ($target eq 'web') {
1.346 albertel 1326: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1327: } elsif ($target eq 'tex') {
1.178 sakharuk 1328: my $endminipage = '';
1.284 albertel 1329: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1330: $endminipage = '\end{minipage}';
1331: }
1.284 albertel 1332: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1333: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1334: } else {
1.262 sakharuk 1335: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1336: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1337: $result .= $endminipage.'\end{document} ';
1338: } else {
1.382 albertel 1339: $result .= $endminipage;
1.262 sakharuk 1340: }
1.159 albertel 1341: }
1342: }
1343: }
1.465.2.11 raeburn 1344: if ($target eq 'web') {
1345: $result.=&Apache::functionplotresponse::init_script();
1346: }
1.159 albertel 1347: if ($target eq 'grade') {
1348: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1349: &finalize_storage();
1350: }
1.284 albertel 1351: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1352: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1353: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1354: # normally we get it from above, but in CSTR
1.172 albertel 1355: # we always show answer mode too.
1.159 albertel 1356: }
1357: } elsif ($target eq 'meta') {
1358: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1359: @Apache::inputtags::response=();
1.159 albertel 1360: $result=&Apache::response::mandatory_part_meta;
1361: }
1.215 albertel 1362: $result.=&Apache::response::meta_part_order();
1.258 albertel 1363: $result.=&Apache::response::meta_response_order();
1.159 albertel 1364: } elsif ($target eq 'edit') {
1365: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1366: $result .= &problem_edit_footer();
1.320 albertel 1367: } elsif ($target eq 'modified') {
1368: $result .= $token->[2];
1.159 albertel 1369: }
1.155 albertel 1370:
1.284 albertel 1371: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1372: &Apache::inputtags::check_for_duplicate_ids();
1373: }
1.204 albertel 1374:
1375: &reset_problem_globals('problem');
1.159 albertel 1376:
1377: return $result;
1.48 albertel 1378: }
1379:
1.108 albertel 1380:
1.48 albertel 1381: sub start_library {
1.159 albertel 1382: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1383: my ($result,$form_tag_start);
1.371 albertel 1384: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1385: &init_problem_globals('library');
1386: $Apache::lonhomework::type='problem';
1387: }
1.159 albertel 1388: if ($target eq 'edit') {
1.343 albertel 1389: ($result,$form_tag_start)=
1390: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1391: 'Edit');
1392: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1393: my $temp=&Apache::edit::insertlist($target,$token);
1394: $result.=$temp;
1395: } elsif ($target eq 'modified') {
1396: $result=$token->[4];
1.340 albertel 1397: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1398: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1399: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1400: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1401: ($result,$form_tag_start)=
1402: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1403: $name);
1.465.2.7 raeburn 1404: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 1405: $result.=" \n $form_tag_start".
1.159 albertel 1406: '<input type="hidden" name="submitted" value="yes" />';
1407: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1408: if ($Apache::lonhomework::type eq 'practice') {
1409: $result.= '<input type="submit" name="resetdata" '.
1410: 'value="'.&mt('New Problem Variation').'" />'.
1411: &practice_problem_header().'<hr />';
1412: }
1.159 albertel 1413: }
1414: return $result;
1.48 albertel 1415: }
1416:
1417: sub end_library {
1.159 albertel 1418: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1419: my $result='';
1420: if ($target eq 'edit') {
1421: $result=&problem_edit_footer();
1.371 albertel 1422: } elsif ($target eq 'web'
1423: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1424: && $env{'request.state'} eq "construct") {
1.349 albertel 1425: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1426: }
1.371 albertel 1427: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1428: &reset_problem_globals('library');
1429: }
1.159 albertel 1430: return $result;
1.197 www 1431: }
1432:
1433: sub start_definetag {
1.326 albertel 1434: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1435:
1436: my $result;
1437:
1438: my $name = $token->[2]->{'name'};
1.326 albertel 1439: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1440: if ($target eq 'web') {
1441: if ($name=~/^\//) {
1442: $result=
1443: '<br /><table class="LC_sty_end"><tr><th>'.
1444: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1445: } else {
1446: $result=
1447: '<br /><table class="LC_sty_begin"><tr><th>'.
1448: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1449: }
1450: $skip = &HTML::Entities::encode($skip, '<>&"');
1451: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1452: }
1453: return $result;
1454: }
1455:
1456: sub end_definetag {
1457: return '';
1.1 albertel 1458: }
1459:
1460: sub start_block {
1.201 albertel 1461: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1462:
1463: my $result;
1.1 albertel 1464:
1.339 albertel 1465: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1466: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1467: my $code = $token->[2]->{'condition'};
1.385 albertel 1468: if (defined($code) && $code ne '') {
1.137 albertel 1469: if (!$Apache::lonxml::default_homework_loaded) {
1470: &Apache::lonxml::default_homework_load($safeeval);
1471: }
1.131 albertel 1472: $result = &Apache::run::run($code,$safeeval);
1473: &Apache::lonxml::debug("block :$code: returned :$result:");
1474: } else {
1475: $result='1';
1476: }
1477: if ( ! $result ) {
1.201 albertel 1478: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1479: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1480: }
1481: $result='';
1482: } elsif ($target eq 'edit') {
1483: $result .=&Apache::edit::tag_start($target,$token);
1484: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1485: $token,40);
1486: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1487: } elsif ($target eq 'modified') {
1488: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1489: $safeeval,'condition');
1490: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1491: }
1.131 albertel 1492: return $result;
1.1 albertel 1493: }
1494:
1495: sub end_block {
1.167 www 1496: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1497: my $result;
1498: if ($target eq "edit") {
1499: $result.= &Apache::edit::tag_end($target,$token,'');
1500: }
1501: return $result;
1502: }
1503:
1504: sub start_languageblock {
1.201 albertel 1505: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1506:
1507: my $result;
1508:
1.339 albertel 1509: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1510: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1511: my $include = $token->[2]->{'include'};
1512: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1513: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.394 www 1514: # This should not even happen, since we should at least have the server language
1.398 www 1515: if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
1516: # Now loop over all languages in order of preference
1517: foreach my $preferred_language (@preferred_languages) {
1.394 www 1518: # If the languageblock has no arguments, show the contents
1.399 www 1519: $result=1;
1520: my $found=0;
1.394 www 1521: # Do we have an include argument?
1.398 www 1522: if ($include) {
1.394 www 1523: # If include is specified, by default, don't render the block
1.399 www 1524: $result=0;
1.398 www 1525: foreach my $included_language (split(/\,/,$include)) {
1.394 www 1526: # ... but if my preferred language is included, render it
1.398 www 1527: if ($included_language eq $preferred_language) {
1.399 www 1528: $result=1;
1529: $found=1;
1.398 www 1530: }
1531: }
1532: }
1.394 www 1533: # Do we have an exclude argument?
1.398 www 1534: if ($exclude) {
1.399 www 1535: $result=1;
1.398 www 1536: foreach my $excluded_language (split(/\,/,$exclude)) {
1537: if ($excluded_language eq $preferred_language) {
1.399 www 1538: $result=0;
1539: $found=1;
1.398 www 1540: }
1541: }
1542: }
1.399 www 1543: if ($found) { last; }
1.398 www 1544: }
1.201 albertel 1545: if ( ! $result ) {
1546: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1547: $style);
1548: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1549: }
1550: $result='';
1.167 www 1551: } elsif ($target eq 'edit') {
1552: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1553: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1554: $token,40);
1.211 albertel 1555: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1556: $token,40);
1557: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1558: } elsif ($target eq 'modified') {
1559: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1560: $safeeval,'include',
1561: 'exclude');
1.167 www 1562: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1563: }
1564: return $result;
1565: }
1566:
1567: sub end_languageblock {
1.170 www 1568: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1569: my $result;
1.201 albertel 1570: if ($target eq "edit") {
1.170 www 1571: $result.= &Apache::edit::tag_end($target,$token,'');
1572: }
1573: return $result;
1574: }
1575:
1.397 albertel 1576: {
1577: my %available_texts;
1578: sub start_translated {
1579: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1580: &Apache::lonxml::register('Apache::structuretags',('lang'));
1581: undef(%available_texts);
1582: }
1583:
1584: sub end_translated {
1585: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1586: my $result;
1587: #show the translation on viewable targets
1588: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1589: # or non-viewable targets, if it's embedded in something that
1590: # wants the output
1591: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1592: && &Apache::lonxml::in_redirection() ) ) {
1593: my @possibilities = keys(%available_texts);
1594: my $which =
1595: &Apache::loncommon::languages(\@possibilities) || 'default';
1596: $result = $available_texts{$which};
1597: }
1598: undef(%available_texts);
1599: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1600: return $result;
1601: }
1602:
1603:
1604: sub start_lang {
1605: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1606: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1607: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1608: &Apache::lonxml::startredirection();
1609: }
1610: return '';
1611: }
1612:
1613: sub end_lang {
1614: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1615: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1616: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1617: my $result = &Apache::lonxml::endredirection();
1618: my $which = &Apache::lonxml::get_param('which',$parstack,
1619: $safeeval);
1.431 raeburn 1620: if ($which=~/\w/) {
1621: $available_texts{$which} = $result;
1622: }
1623: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
1624: $safeeval);
1625: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
1626: if ($language=~/\w/) {
1627: $available_texts{$language} = $result;
1628: }
1.427 bisitz 1629: }
1630:
1.397 albertel 1631: }
1632: return '';
1633: }
1634: }
1635:
1.170 www 1636: sub start_instructorcomment {
1.201 albertel 1637: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1638:
1639: my $result;
1640:
1.339 albertel 1641: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1642: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.465.2.1 raeburn 1643: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 1644: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1645: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1646: $parser,$style);
1.170 www 1647: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1648: }
1649: $result='';
1650: } elsif ($target eq 'edit') {
1651: $result .=&Apache::edit::tag_start($target,$token);
1652: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1653: }
1654: return $result;
1655: }
1656:
1657: sub end_instructorcomment {
1.159 albertel 1658: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1659: my $result;
1660: if ($target eq "edit") {
1661: $result.= &Apache::edit::tag_end($target,$token,'');
1662: }
1663: return $result;
1.4 tsai 1664: }
1665:
1666: sub start_while {
1.326 albertel 1667: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1668:
1.160 albertel 1669: my $result;
1.339 albertel 1670: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1671: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1672: my $code = $token->[2]->{'condition'};
1.4 tsai 1673:
1.160 albertel 1674: push( @Apache::structuretags::whileconds, $code);
1675: if (!$Apache::lonxml::default_homework_loaded) {
1676: &Apache::lonxml::default_homework_load($safeeval);
1677: }
1678: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1679: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1680: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1681: push( @Apache::structuretags::whileline, $token->[5]);
1682: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1683: if ( $result ) {
1684: &Apache::lonxml::newparser($parser,\$bodytext);
1685: }
1686: } elsif ($target eq 'edit') {
1687: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1688: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1689: $token,40);
1690: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1691: } elsif ($target eq 'modified') {
1692: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1693: $safeeval,'condition');
1694: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1695: }
1.160 albertel 1696: return $result;
1.4 tsai 1697: }
1698:
1699: sub end_while {
1.159 albertel 1700: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1701: my $result;
1702:
1.339 albertel 1703: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1704: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1705: my $code = pop(@Apache::structuretags::whileconds);
1706: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1707: my $line = pop(@Apache::structuretags::whileline);
1708: my $return = &Apache::run::run($code,$safeeval);
1709: my $starttime=time;
1710: my $error=0;
1711: while ($return) {
1712: if (time-$starttime >
1713: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1714: $return = 0; $error=1; next;
1.161 albertel 1715: }
1716: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1717: if ($target eq 'grade' || $target eq 'answer' ||
1718: $target eq 'analyze') {
1719: # grade/answer/analyze should produce no output but if we
1720: # are redirecting, the redirecter should know what to do
1721: # with the output
1722: if (!$Apache::lonxml::redirection) { undef($result); }
1723: }
1.161 albertel 1724: $return = &Apache::run::run($code,$safeeval);
1725: }
1726: if ($error) {
1.430 bisitz 1727: &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 1728: }
1729: } elsif ($target eq "edit") {
1730: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1731: }
1.160 albertel 1732: return $result;
1.1 albertel 1733: }
1.6 tsai 1734:
1.160 albertel 1735: # <randomlist show="1">
1.6 tsai 1736: # <tag1>..</tag1>
1737: # <tag2>..</tag2>
1738: # <tag3>..</tag3>
1.160 albertel 1739: # ...
1.6 tsai 1740: # </randomlist>
1741: sub start_randomlist {
1.326 albertel 1742: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1743: my $result;
1.339 albertel 1744: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1745: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1746: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1747: my $b_parser= HTML::LCParser->new(\$body);
1748: $b_parser->xml_mode(1);
1749: $b_parser->marked_sections(1);
1.159 albertel 1750: my $b_tok;
1751: my @randomlist;
1752: my $list_item;
1753: while($b_tok = $b_parser->get_token() ) {
1754: if($b_tok->[0] eq 'S') { # start tag
1755: # get content of the tag until matching end tag
1756: # get all text upto the matching tag
1757: # and push the content into @randomlist
1758: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1759: $b_parser);
1760: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1761: push(@randomlist,$list_item);
1762: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1763: # $list_item</b>";
1764: }
1765: if($b_tok->[0] eq 'T') { # text
1766: # what to do with text in between tags?
1767: # print "<b>TEXT $b_tok->[1]</b><br />";
1768: }
1769: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1770: # print "<b>END-TAG $b_tok->[1]</b><br />";
1771: # }
1772: }
1.303 albertel 1773: if (@randomlist) {
1774: my @idx_arr = (0 .. $#randomlist);
1775: &Apache::structuretags::shuffle(\@idx_arr);
1776: my $bodytext = '';
1777: my $show=$#randomlist;
1778: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1779: $showarg--;
1780: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 1781: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
1782: my @currlist;
1783: my $part = $Apache::inputtags::part;
1784: if ($part ne '') {
1785: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
1786: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
1787: if (!(grep(/^\Q$part\E$/,@currlist))) {
1788: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1789: }
1790: } else {
1791: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1792: }
1793: }
1794: }
1.303 albertel 1795: for(0 .. $show) {
1796: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1797: }
1798: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1799: }
1800: } elsif ($target eq 'edit' ) {
1801: $result .=&Apache::edit::tag_start($target,$token);
1802: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1803: $token,5);
1804: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1805: } elsif ($target eq 'modified' ) {
1806: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1807: $safeeval,'show');
1808: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1809: }
1810: return $result;
1.7 tsai 1811: }
1812:
1813: sub shuffle {
1814: my $a=shift;
1815: my $i;
1.303 albertel 1816: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1817: &Apache::response::pushrandomnumber();
1.159 albertel 1818: for($i=@$a;--$i;) {
1819: my $j=int(&Math::Random::random_uniform() * ($i+1));
1820: next if $i == $j;
1821: @$a[$i,$j] = @$a[$j,$i];
1822: }
1.251 albertel 1823: &Apache::response::poprandomnumber();
1.7 tsai 1824: }
1.6 tsai 1825: }
1826:
1827: sub end_randomlist {
1.159 albertel 1828: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1829: my $result;
1830: if ($target eq 'edit' ) {
1831: $result=&Apache::edit::tag_end($target,$token,
1832: 'End Randomly Parsed Block');
1833: }
1834: return $result;
1.6 tsai 1835: }
1836:
1.283 albertel 1837: sub ordered_show_check {
1838: my $last_part=$Apache::inputtags::partlist[-2];
1839: my $in_order=
1840: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1841: my $in_order_show=1;
1842: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1843: $in_order_show=&Apache::response::check_status($last_part);
1844: }
1845: return $in_order_show;
1846: }
1847:
1.465.2.2 raeburn 1848: sub start_startpartmarker {
1849: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1850: my $result='';
1851: if ($target eq 'edit') {
1852: $result=&Apache::edit::tag_start($target,$token);
1853: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
1854: $result.=&Apache::edit::end_table();
1855:
1856: }
1857: return $result;
1858: }
1859:
1860: sub end_startpartmarker {
1861: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1862: my @result;
1863: if ($target eq 'edit') { $result[1]='no'; }
1864: return @result;
1865: }
1866:
1867: sub start_endpartmarker {
1868: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1869: my $result='';
1870: if ($target eq 'edit') {
1871: $result=&Apache::edit::tag_start($target,$token);
1872: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
1873: $result.=&Apache::edit::end_table();
1874:
1875: }
1876: return $result;
1877: }
1878:
1879: sub end_endpartmarker {
1880: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1881: my @result;
1882: if ($target eq 'edit') { $result[1]='no'; }
1883: return @result;
1884: }
1885:
1.11 albertel 1886: sub start_part {
1.326 albertel 1887: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1888: if (!$Apache::lonxml::metamode) {
1889: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1890: # duedates.
1891: }
1.159 albertel 1892: my $result='';
1.386 albertel 1893: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1894: $Apache::inputtags::part=$id;
1.177 albertel 1895: push(@Apache::inputtags::partlist,$id);
1896: @Apache::inputtags::response=();
1.159 albertel 1897: @Apache::inputtags::previous=();
1898: @Apache::inputtags::previous_version=();
1.405 albertel 1899: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 1900: &Apache::response::reset_params();
1901:
1.159 albertel 1902: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1903: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1904: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1905: my $in_order_show=&ordered_show_check();
1.214 albertel 1906: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1907: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1908: &Apache::run::run($expression,$safeeval);
1.159 albertel 1909:
1910: if ($target eq 'meta') {
1.224 www 1911: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1912: return &Apache::response::mandatory_part_meta.
1913: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1914: } elsif ($target eq 'web' || $target eq 'grade' ||
1915: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1916: if ($hidden || !$in_order_show) {
1.326 albertel 1917: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1918: } else {
1919: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1920: push (@Apache::inputtags::status,$status);
1921: my $expression='$external::datestatus="'.$status.'";';
1922: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1923: &Apache::run::run($expression,$safeeval);
1.284 albertel 1924: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1925: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1926: }
1.216 albertel 1927: if (( $status eq 'CLOSED' ) ||
1928: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1929: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1930: ( $status eq 'BANNED') ||
1931: ( $status eq 'UNAVAILABLE') ||
1932: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1933: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1934: $style);
1.159 albertel 1935: if ( $target eq "web" ) {
1.211 albertel 1936: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1937: } elsif ( $target eq 'tex' ) {
1.284 albertel 1938: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1939: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1940: } else {
1.211 albertel 1941: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1942: }
1.159 albertel 1943: }
1944: } else {
1945: if ($target eq 'tex') {
1.284 albertel 1946: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1947: if ($$tagstack[-2] eq 'td') {
1.388 foxr 1948: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1949: } else {
1950: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1951: }
1.195 sakharuk 1952: }
1.159 albertel 1953: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1954: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1955: my @allkeys = split /,/,$allkeys;
1956: my $allow_print_points = 0;
1957: foreach my $partial_key (@allkeys) {
1.230 albertel 1958: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1959: if ($1 ne '0') {$allow_print_points=1;}
1960: }
1961: }
1.275 albertel 1962: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1963: if (defined($maxtries) && $maxtries < 0) {
1964: $allow_print_points=0;
1965: }
1.302 albertel 1966: if (lc($env{'course.'.$env{'request.course.id'}.
1967: '.disableexampointprint'}) eq 'yes') {
1968: $allow_print_points=0;
1969: }
1.463 foxr 1970: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1971: $result .= '\vskip 10mm\fbox{\textit{'.$weight.' pt}}';
1972:
1973: }
1.233 www 1974: } elsif ($target eq 'web') {
1.465.2.7 raeburn 1975: if ($status eq 'CAN_ANSWER') {
1976: my $problemstatus = &get_problem_status($Apache::inputtags::part);
1977: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
1978: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
1979: my $num = scalar(@Apache::inputtags::partlist)-1;
1980: if ($probrandomize eq 'randomizetry') {
1981: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
1982: $result .= &randomizetry_part_header($problemstatus,'none',$num);
1983: } else {
1984: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1985: if ($probrandtries ne $reqtries) {
1986: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
1987: }
1988: }
1989: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
1990: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
1991: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
1992: }
1993: }
1.465.2.5 raeburn 1994: $result.='<a name="'.&escape($Apache::inputtags::part).'"></a>';
1.159 albertel 1995: }
1996: }
1997: }
1998: } elsif ($target eq 'edit') {
1999: $result.=&Apache::edit::tag_start($target,$token);
2000: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
2001: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 2002: ' '.
2003: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 2004: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
2005: } elsif ($target eq 'modified') {
2006: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 2007: $safeeval,'id','display');
1.159 albertel 2008: if ($constructtag) {
1.225 albertel 2009: #limiting ids to only letters numbers, and space
1.224 www 2010: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2011: $result = &Apache::edit::rebuild_tag($token);
2012: }
2013: }
2014: return $result;
1.11 albertel 2015: }
2016:
2017: sub end_part {
1.159 albertel 2018: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2019: &Apache::lonxml::debug("in end_part $target ");
2020: my $status=$Apache::inputtags::status['-1'];
2021: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2022: my $in_order_show=&ordered_show_check();
1.321 albertel 2023: my $result;
2024: if (!$Apache::lonxml::metamode) {
2025: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2026: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2027: }
1.312 albertel 2028: if ($target eq 'grade') {
1.249 albertel 2029: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2030: !$hidden && $in_order_show) {
1.311 foxr 2031: $result.=&Apache::inputtags::grade;
1.249 albertel 2032: } else {
2033: # move any submission data to .hidden
2034: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2035: }
1.283 albertel 2036: } elsif (($target eq 'web' || $target eq 'tex') &&
2037: !$hidden && $in_order_show) {
1.159 albertel 2038: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2039: $target);
1.212 albertel 2040: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
2041: $gradestatus='';
2042: }
1.311 foxr 2043: $result.=$gradestatus;
1.265 sakharuk 2044: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2045: } elsif ($target eq 'edit') {
1.311 foxr 2046: $result.=&Apache::edit::end_table();
1.322 albertel 2047: } elsif ($target eq 'modified') {
2048: $result .= $token->[2];
1.159 albertel 2049: }
2050: pop @Apache::inputtags::status;
2051: $Apache::inputtags::part='';
1.295 albertel 2052: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2053: return $result;
1.11 albertel 2054: }
1.1 albertel 2055:
1.25 albertel 2056: sub start_preduedate {
1.326 albertel 2057: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2058: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2059: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2060: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2061: if (!$Apache::lonhomework::scantronmode &&
2062: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2063: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2064: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2065: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2066: }
1.24 albertel 2067: }
1.159 albertel 2068: return '';
1.24 albertel 2069: }
2070:
1.25 albertel 2071: sub end_preduedate {
1.159 albertel 2072: return '';
1.24 albertel 2073: }
2074:
1.369 foxr 2075: # In all the modes where <postanswerdate> text is
2076: # displayable, all we do is eat up the text between the start/stop
2077: # tags if the conditions are not right to display it.
1.25 albertel 2078: sub start_postanswerdate {
1.326 albertel 2079: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2080: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2081: &Apache::lonnet::allowed('pav',
2082: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2083: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2084: $target eq 'tex' ) {
1.300 albertel 2085: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2086: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2087: (($target eq 'tex') && !$pav)) {
1.326 albertel 2088: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2089: }
2090: }
2091: return '';
1.24 albertel 2092: }
2093:
1.25 albertel 2094: sub end_postanswerdate {
1.159 albertel 2095: return '';
1.24 albertel 2096: }
2097:
1.25 albertel 2098: sub start_notsolved {
1.326 albertel 2099: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2100: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2101: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2102: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2103: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2104: if ($gradestatus =~ /^correct/ &&
2105: &Apache::response::show_answer()) {
1.159 albertel 2106: &Apache::lonxml::debug("skipping");
1.326 albertel 2107: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2108: }
1.24 albertel 2109: }
1.159 albertel 2110: return '';
1.24 albertel 2111: }
2112:
1.25 albertel 2113: sub end_notsolved {
1.159 albertel 2114: return '';
1.24 albertel 2115: }
2116:
2117: sub start_solved {
1.326 albertel 2118: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2119: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2120: $target eq 'tex') {
2121: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2122: if ($gradestatus !~ /^correct/ ||
2123: !&Apache::response::show_answer()) {
1.326 albertel 2124: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2125: }
1.24 albertel 2126: }
1.159 albertel 2127: return '';
1.24 albertel 2128: }
2129:
2130: sub end_solved {
1.248 albertel 2131: return '';
2132: }
2133:
2134: sub start_problemtype {
1.326 albertel 2135: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2136: my $result;
1.339 albertel 2137: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2138: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2139: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2140: if (!defined($mode)) { $mode='show'; }
2141: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2142: my $found=0;
2143: foreach my $type (split(',',$for)) {
2144: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2145: }
2146: if ($mode eq 'show' && !$found) {
1.326 albertel 2147: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2148: }
2149: if ($mode eq 'hide' && $found) {
1.326 albertel 2150: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2151: }
2152: } elsif ($target eq 'edit') {
2153: $result .=&Apache::edit::tag_start($target,$token);
2154: $result.=&Apache::edit::select_arg('Mode:','mode',
2155: [['show','Show'],
2156: ['hide','Hide']]
2157: ,$token);
2158: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
2159: [ ['exam','Exam/Quiz Problem'],
2160: ['survey','Survey'],
1.465 raeburn 2161: ['surveycred','Survey (with credit)'],
2162: ['anonsurvey','Anonymous Survey'],
2163: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2164: ['problem','Homework Problem'],
1.465.2.7 raeburn 2165: ['practice','Practice Problem'],
2166: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2167: ,$token);
2168: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2169: } elsif ($target eq 'modified') {
2170: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2171: $safeeval,'mode','for');
2172: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2173: }
2174: return $result;
2175: }
2176:
2177: sub end_problemtype {
1.159 albertel 2178: return '';
1.24 albertel 2179: }
1.34 albertel 2180:
2181: sub start_startouttext {
1.159 albertel 2182: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2183: my @result=(''.'');
2184: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2185:
2186: my $nesting =
2187: &Apache::lonxml::set_state('outtext',
2188: &Apache::lonxml::get_state('outtext')+1);
2189: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2190: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2191: }
1.159 albertel 2192: return (@result);
1.34 albertel 2193: }
1.159 albertel 2194:
1.34 albertel 2195: sub end_startouttext {
1.326 albertel 2196: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2197: my $result='';
2198: my $text='';
2199: if ($target eq 'edit') {
1.424 foxr 2200: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2201: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 2202: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 2203: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2204: .&Apache::edit::deletelist($target,$token)
1.465.2.4 raeburn 2205: .'</span></td>'
2206: .'<td align="left"><span id="math_'.$areaid.'" />'
2207: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
2208: .'</td>'
2209: .'<td>'
2210: .&Apache::edit::insertlist($target,$token)
2211: .'</td>'
2212: .'<td align="right" valign="top">' .
2213: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2214: &Apache::edit::end_row().
1.362 albertel 2215: &Apache::edit::start_spanning_row()."\n".
1.255 www 2216: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2217: }
2218: if ($target eq 'modified') {
1.219 albertel 2219: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2220: }
2221: if ($target eq 'tex') {
2222: $result .= '\noindent ';
2223: }
2224: return $result;
1.34 albertel 2225: }
1.159 albertel 2226:
1.34 albertel 2227: sub start_endouttext {
1.159 albertel 2228: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2229: my $result='';
2230: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2231: if ($target eq "modified") {
2232: $result='<endouttext />'.
1.377 albertel 2233: &Apache::edit::handle_insertafter('startouttext');
2234: }
1.404 albertel 2235:
2236: my $nesting =
2237: &Apache::lonxml::set_state('outtext',
2238: &Apache::lonxml::get_state('outtext')-1);
2239: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2240: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2241: &Apache::lonxml::set_state('outtext', 0);
2242: }
1.159 albertel 2243: return $result;
1.34 albertel 2244: }
1.159 albertel 2245:
1.34 albertel 2246: sub end_endouttext {
1.159 albertel 2247: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2248: my @result=('','');
2249: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2250: return (@result);
1.34 albertel 2251: }
1.159 albertel 2252:
1.45 albertel 2253: sub delete_startouttext {
1.326 albertel 2254: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2255: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2256: my $text=$$parser['-1']->get_text("/endouttext");
2257: my $ntoken=$$parser['-1']->get_token();
2258: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2259: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2260: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2261: # they did the last time round
2262: &Apache::lonxml::increasedepth($ntoken);
2263: &Apache::lonxml::decreasedepth($ntoken);
2264: return 1;
1.193 www 2265: }
2266:
2267: sub start_simpleeditbutton {
2268: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2269: my $result='';
1.284 albertel 2270: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2271: ($target eq 'web') &&
1.330 albertel 2272: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2273: my $url=$env{'request.noversionuri'};
1.193 www 2274: $url=~s/\?.*$//;
1.367 albertel 2275: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 2276: # Warning makes more sense and is more important on edit screen
1.442 bisitz 2277: # $result='<p class="LC_warning">'
2278: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2279: # .&Apache::loncommon::help_open_topic('Caching')
2280: # .'</p>';
1.451 bisitz 2281: $result.=&Apache::lonhtmlcommon::start_funclist()
2282: .&Apache::lonhtmlcommon::add_item_funclist(
2283: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
2284: .&mt('Edit').'</a>')
2285: .&Apache::lonhtmlcommon::end_funclist();
1.442 bisitz 2286:
1.193 www 2287: }
2288: return $result;
2289: }
2290:
2291: sub end_simpleeditbutton {
2292: return '';
1.45 albertel 2293: }
1.34 albertel 2294:
1.428 raeburn 2295: sub practice_problem_header {
2296: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2297: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2298: '</span>';
2299: }
2300:
1.465.2.7 raeburn 2301: sub randomizetry_problem_header {
2302: my ($problemstatus,$reqtries) = @_;
2303: my ($header,$text);
2304: if ($reqtries > 1) {
2305: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
2306: if (($problemstatus eq 'no') ||
2307: ($problemstatus eq 'no_feedback_ever')) {
2308: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2309: } else {
2310: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2311: }
2312: } else {
2313: $header = &mt('New Problem Variation Each Try');
2314: if (($problemstatus eq 'no') ||
2315: ($problemstatus eq 'no_feedback_ever')) {
2316: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
2317:
2318: } else {
2319: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
2320: }
2321: }
2322: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
2323: '<span class="LC_info">'.$text.'</span><hr />';
2324: }
2325:
2326: sub randomizetry_part_header {
2327: my ($problemstatus,$reqtries,$num) = @_;
2328: my ($header,$text);
2329: if ($reqtries eq 'none') {
2330: $header = &mt('No Question Variation');
2331: $text = &mt('For this question there will no new variation after a try.');
2332: } elsif ($reqtries > 1) {
2333: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
2334: if (($problemstatus eq 'no') ||
2335: ($problemstatus eq 'no_feedback_ever')) {
2336: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
2337: } else {
2338: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
2339: }
2340: } else {
2341: $header = &mt('New Question Variation For Each Try');
2342: if (($problemstatus eq 'no') ||
2343: ($problemstatus eq 'no_feedback_ever')) {
2344: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
2345: } else {
2346: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
2347: }
2348: }
2349: my $output;
2350: if ($num > 1) {
2351: $output .= '<hr />';
2352: }
2353: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
2354: '<span class="LC_info">'.$text.'</span><br /><br />';
2355: return $output;
2356: }
2357:
1.1 albertel 2358: 1;
2359: __END__
1.435 jms 2360:
2361: =pod
2362:
2363: =back
2364:
2365: =cut
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