Annotation of loncom/homework/structuretags.pm, revision 1.396
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.396 ! albertel 4: # $Id: structuretags.pm,v 1.395 2007/09/10 17:02:32 albertel 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:
1.133 sakharuk 30:
1.1 albertel 31: package Apache::structuretags;
32:
33: use strict;
34: use Apache::lonnet;
1.101 sakharuk 35: use Apache::File();
1.147 www 36: use Apache::lonmenu;
1.210 albertel 37: use Apache::lonlocal;
1.231 sakharuk 38: use Apache::lonxml;
1.338 albertel 39: use Apache::lonenc();
1.267 albertel 40: use Time::HiRes qw( gettimeofday tv_interval );
1.356 www 41: use lib '/home/httpd/lib/perl/';
42: use LONCAPA;
43:
1.78 harris41 44: BEGIN {
1.248 albertel 45: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startouttext','endouttext','simpleeditbutton','definetag'));
1.10 albertel 46: }
47:
48: sub start_web {
1.326 albertel 49: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 50: if ($target ne 'edit' && $target ne 'modified') {
51: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
52: if ($target eq 'web' || $target eq 'webgrade') {
53: return $bodytext;
54: }
55: } elsif ($target eq "edit" ) {
56: my $bodytext =
57: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
58: my $result = &Apache::edit::tag_start($target,$token);
59: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
60: return $result;
61: } elsif ( $target eq "modified" ) {
62: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 63: }
64: return '';
1.10 albertel 65: }
66:
67: sub end_web {
1.44 ng 68: return '';
1.10 albertel 69: }
70:
71: sub start_tex {
1.326 albertel 72: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 73: my $result='';
1.383 albertel 74: if ($target ne 'edit' && $target ne 'modified') {
75: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
76: if ($target eq 'tex') {
77: return $bodytext.' ';
78: }
79: } elsif ($target eq "edit" ) {
80: my $bodytext =
81: &Apache::lonxml::get_all_text_unbalanced("/tex",$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 $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 87: }
1.198 sakharuk 88: return $result;;
1.10 albertel 89: }
90:
91: sub end_tex {
1.44 ng 92: return '';
1.9 albertel 93: }
94:
1.48 albertel 95: sub page_start {
1.345 albertel 96: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
97: $extra_head)=@_;
1.159 albertel 98: my %found;
1.207 albertel 99: foreach my $taginside (@$tagstack) {
1.159 albertel 100: foreach my $taglookedfor ('html','body','form') {
101: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
102: }
103: }
104:
1.343 albertel 105: if ($target eq 'tex') {
106: return
107: &Apache::londefdef::start_html($target,$token,$tagstack,
108: $parstack,$parser,$safeeval);
109: }
110:
1.374 albertel 111: $extra_head.= '
112: <script type="text/javascript">
113: function setSubmittedPart (part) {
114: this.document.lonhomework.submitted.value="part_"+part;
115: }
116: </script>
117: ';
118:
1.344 albertel 119: my %body_args;
120: if (defined($found{'html'})) {
121: $body_args{'skip_phases'}{'head'}=1;
122: } else {
1.343 albertel 123:
1.345 albertel 124: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 125:
1.379 albertel 126: $extra_head .= &Apache::londefdef::generate_css_links();
127:
1.384 albertel 128: if ($env{'request.state'} eq 'construct') {
1.343 albertel 129: $extra_head.=&Apache::edit::js_change_detection().
130: "<script type=\"text/javascript\">\n".
131: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
132: &Apache::loncommon::browser_and_searcher_javascript().
133: "\n</script>\n";
134: }
1.159 albertel 135: }
1.343 albertel 136:
1.344 albertel 137: if (defined($found{'body'})) {
138: $body_args{'skip_phases'}{'body'}=1;
139: } elsif (!defined($found{'body'})
140: && $env{'request.state'} eq 'construct') {
1.343 albertel 141: if ($target eq 'web' || $target eq 'edit') {
1.344 albertel 142: # no extra args to bodytag
1.297 albertel 143: }
1.272 albertel 144: } elsif (!defined($found{'body'})) {
1.343 albertel 145: my %add_entries;
1.159 albertel 146: my $background=&Apache::lonxml::get_param('background',$parstack,
147: $safeeval);
1.343 albertel 148: if ($background ne '' ) {
149: $add_entries{'background'} = $background;
150: }
1.344 albertel 151:
1.290 albertel 152: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
153: $safeeval);
1.344 albertel 154: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
155:
156: $body_args{'bgcolor'} = $bgcolor;
157: $body_args{'no_title'} = 1;
158: $body_args{'force_register'} = 1;
159: $body_args{'add_entries'} = \%add_entries;
1.391 albertel 160: if ($env{'environment.remote'} eq 'off'
161: && $env{'request.state'} eq 'construct') {
162: $body_args{'only_body'} = 1;
163: }
1.344 albertel 164: }
1.365 albertel 165: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 166: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
167: \%body_args);
168:
169: if (!defined($found{'body'})
170: && $env{'request.state'} ne 'construct'
171: && ($target eq 'web' || $target eq 'webgrade')) {
172:
1.367 albertel 173: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
1.344 albertel 174: if ($symb eq '' && !$publicuser) {
175: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
176: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
177: $page_start .= $help;
1.159 albertel 178: }
1.344 albertel 179: }
180:
181: if (!defined($found{'body'})) {
1.343 albertel 182: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 183: }
1.344 albertel 184:
1.159 albertel 185: my $form_tag_start;
186: if (!defined($found{'form'})) {
1.337 albertel 187: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.338 albertel 188: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.327 albertel 189: $form_tag_start.=$uri.'" ';
190: if ($target eq 'edit') {
191: $form_tag_start.=&Apache::edit::form_change_detection();
192: }
1.368 albertel 193: $form_tag_start.='>'."\n";
1.355 albertel 194:
195: my $symb=&Apache::lonnet::symbread();
196: if ($symb =~ /\S/) {
197: $symb=
198: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
199: $form_tag_start.=
1.368 albertel 200: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 201: }
1.159 albertel 202: }
1.343 albertel 203: return ($page_start,$form_tag_start);
1.105 albertel 204: }
205:
1.141 matthew 206: #use Time::HiRes();
1.105 albertel 207: sub get_resource_name {
1.159 albertel 208: my ($parstack,$safeeval)=@_;
1.388 foxr 209: my $name;
1.204 albertel 210: if (defined($Apache::lonhomework::name)) {
1.388 foxr 211: $name = $Apache::lonhomework::name;
212: } else {
213: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 214: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 215: if ($name eq '') {
216: $name=&Apache::lonnet::EXT('resource.title');
217: if ($name eq 'con_lost') { $name = ''; }
218: }
219: if ($name!~/\S+/) {
220: $name=$env{'request.uri'};
221: $name=~s-.*/([^/]+)$-$1-;
222: }
223: # The name has had html tags escaped:
224:
225: $name=~s/</</gs;
226: $name=~s/>/>/gs;
227:
228: $Apache::lonhomework::name=$name;
1.204 albertel 229: }
1.159 albertel 230: return $name;
1.105 albertel 231: }
232:
233: sub setup_rndseed {
1.159 albertel 234: my ($safeeval)=@_;
235: my $rndseed;
1.367 albertel 236: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 237: if ($env{'request.state'} eq "construct"
238: || $symb eq ''
239: || $Apache::lonhomework::type eq 'practice'
240: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 241: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 242: ['rndseed']);
1.284 albertel 243: $rndseed=$env{'form.rndseed'};
1.159 albertel 244: if (!$rndseed) {
1.162 albertel 245: $rndseed=$Apache::lonhomework::history{'rndseed'};
246: if (!$rndseed) {
247: $rndseed=time;
248: }
1.284 albertel 249: $env{'form.rndseed'}=$rndseed;
1.162 albertel 250: }
1.374 albertel 251: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
252: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 253: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 254: srand(time);
255: $rndseed=int(rand(2100000000));
1.284 albertel 256: $env{'form.rndseed'}=$rndseed;
257: delete($env{'form.resetdata'});
258: delete($env{'form.newrandomization'});
1.159 albertel 259: }
1.187 albertel 260: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 261: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 262: }
1.247 albertel 263: if ($Apache::lonhomework::history{'resource.CODE'}) {
264: $rndseed=&Apache::lonnet::rndseed();
265: }
1.221 albertel 266: if ($safeeval) {
267: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 268: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 269: }
1.159 albertel 270: }
271: return $rndseed;
1.105 albertel 272: }
273:
1.268 albertel 274: sub remember_problem_state {
275: return '
1.284 albertel 276: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
277: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
278: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 279: }
280:
1.105 albertel 281: sub problem_edit_header {
1.268 albertel 282: return '<input type="hidden" name="submitted" value="edit" />'.
283: &Apache::structuretags::remember_problem_state().'
1.210 albertel 284: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
1.243 matthew 285: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
1.328 albertel 286: <input '.&Apache::edit::submit_ask_anyway().' type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 287: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
288: <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
289: <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
1.359 albertel 290: &Apache::loncommon::help_open_menu('Problem Editing Help','Problem_Editor_XML_Index',5,'Authoring',undef,undef,undef,'Problem Editing Help')
1.260 albertel 291: .'</td></tr></table>'.
1.282 albertel 292: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 293: }
294:
295: sub problem_edit_footer {
1.210 albertel 296: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
1.255 www 297: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
1.348 albertel 298: &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields()).
1.342 albertel 299: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 300: }
301:
1.235 albertel 302: sub option {
303: my ($value,$name) = @_;
304: my $result ="<option value='".$value."' ";
1.284 albertel 305: if ($env{'form.'.$name} eq $value) {
1.235 albertel 306: $result.=" selected='on' ";
307: }
308: $result.='>';
309: return $result;
310: }
311:
1.105 albertel 312: sub problem_web_to_edit_header {
1.159 albertel 313: my ($rndseed)=@_;
1.313 albertel 314: my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />';
1.373 albertel 315: $result .= '<input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />';
1.313 albertel 316: $result .= '<input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.243 matthew 317: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
318: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
1.210 albertel 319: <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.270 albertel 320: <input type="text" name="rndseed" size="10" value="'.
1.175 albertel 321: $rndseed.'"
1.270 albertel 322: onchange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
1.384 albertel 323: <span class="LC_nobreak"><label><input type="checkbox" name="showallfoils" ';
1.315 albertel 324: my $show_all_foils_text =
325: ($Apache::lonhomework::parsing_a_task) ?
326: &mt(' Show All Instances')
327: : &mt(' Show All Foils');
328:
1.284 albertel 329: if (defined($env{'form.showallfoils'})) { $result.='checked="on"'; }
1.384 albertel 330: $result.= ' />'.$show_all_foils_text.'</label></span>'.
1.228 www 331: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
1.371 albertel 332: '<hr />';
1.386 albertel 333: $result.=&mt('Apply style file: ').'
1.384 albertel 334: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
335: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
336: <input type="submit" name="clear_style_file" value="'.&mt('Clear').'" />
337: <br />';
338:
1.313 albertel 339: if (!$Apache::lonhomework::parsing_a_task) {
340: $result.="
1.235 albertel 341: <nobr>
342: Problem Status:
343: <select name='problemstate'>
1.270 albertel 344: <option value=''></option>
1.235 albertel 345: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
346: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
347: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
348: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
349: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
350: </select>
351: </nobr>
352: <nobr>
353: Problem Type:
354: <select name='problemtype'>
1.270 albertel 355: <option value=''></option>
1.242 albertel 356: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
357: ".&option('problem','problemtype').&mt("Homework problem")."</option>
358: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.235 albertel 359: </select>
360: </nobr>
361: <nobr>
362: Feedback Mode:
363: <select name='problemstatus'>
364: <option value=''></option>
1.242 albertel 365: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
366: ".&option('no', 'problemstatus').&mt("Don't Show Feedback")."</option>
1.235 albertel 367: </select>
368: </nobr>
1.242 albertel 369: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
1.235 albertel 370: <hr />";
1.313 albertel 371: my $numtoanalyze=$env{'form.numtoanalyze'};
372: if (!$numtoanalyze) { $numtoanalyze=20; }
373: $result.= '<input type="submit" name="problemmode" value='.
374: &mt('"Calculate answers').'" /> for
1.136 albertel 375: <input type="text" name="numtoanalyze" value="'.
1.210 albertel 376: $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
377: '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
1.176 albertel 378: '',undef,undef,300).
1.210 albertel 379: '<hr />';
1.376 albertel 380: } elsif ($Apache::lonhomework::parsing_a_task) {
381: $result.="
382: <nobr>
383: Problem Status:
384: <select name='problemstate'>
385: <option value=''></option>
386: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
387: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
388: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
389: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
390: </select>
391: </nobr>
392: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
393: <hr />";
1.313 albertel 394: }
1.159 albertel 395: return $result;
1.48 albertel 396: }
397:
1.65 albertel 398: sub initialize_storage {
1.357 albertel 399: my ($given_symb) = @_;
1.353 albertel 400: undef(%Apache::lonhomework::results);
401: undef(%Apache::lonhomework::history);
1.357 albertel 402: my ($symb,$courseid,$domain,$name) =
1.367 albertel 403: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 404:
405: # anonymous users (CODEd exams) have no data
406: if ($name eq 'anonymous'
407: && !defined($domain)) {
408: return;
409: }
410:
1.333 albertel 411: if ($env{'request.state'} eq 'construct'
412: || $symb eq ''
413: || $Apache::lonhomework::type eq 'practice') {
414:
415: my $namespace = $symb || $env{'request.uri'};
416: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 417: ($env{'form.resetdata'} eq &mt('New Problem Variation')
418: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 419: $env{'form.newrandomization'} eq &mt('New Randomization')) {
420: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
421: &Apache::lonxml::debug("Attempt reset");
422: }
1.159 albertel 423: %Apache::lonhomework::history=
1.333 albertel 424: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 425: my ($temp)=keys %Apache::lonhomework::history ;
426: &Apache::lonxml::debug("Return message of $temp");
427: } else {
428: %Apache::lonhomework::history=
429: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
430: }
1.353 albertel 431:
1.159 albertel 432: #ignore error conditions
1.67 albertel 433: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 434: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 435: }
436:
437: # -------------------------------------------------------------finalize_storage
438: # Stores away the result has to a student's environment
439: # checks form.grade_ for specific values, other wises stores
440: # to the running users environment
1.285 raeburn 441: # Will increment totals for attempts, students, and corrects
442: # if running user has student role.
1.65 albertel 443: sub finalize_storage {
1.357 albertel 444: my ($given_symb) = @_;
1.159 albertel 445: my $result;
1.289 albertel 446: if (%Apache::lonhomework::results) {
1.323 albertel 447: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
448: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 449: my ($symb,$courseid,$domain,$name) =
1.367 albertel 450: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 451: if ($env{'request.state'} eq 'construct'
452: || $symb eq ''
453: || $Apache::lonhomework::type eq 'practice') {
454: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 455: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 456: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 457: $namespace,'',$domain,$name);
1.159 albertel 458: &Apache::lonxml::debug('Construct Store return message:'.$result);
459: } else {
460: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
461: $symb,$courseid,$domain,$name);
462: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 463: if ($env{'request.role'} =~/^st/) {
464: &store_aggregates($symb,$courseid);
465: }
1.159 albertel 466: }
1.323 albertel 467: } else {
468: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 469: }
1.159 albertel 470: return $result;
1.65 albertel 471: }
472:
1.285 raeburn 473: # -------------------------------------------------------------store_aggregates
474: # Sends hash of values to be incremented in nohist_resourcetracker.db
475: # for the course. Increments total number of attempts, unique students
476: # and corrects for each part for an instance of a problem, as appropriate.
477: sub store_aggregates {
478: my ($symb,$courseid) = @_;
1.286 albertel 479: my %aggregate;
480: my @parts;
1.288 albertel 481: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
482: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 483: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 484: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 485: push(@parts, $1);
1.285 raeburn 486: }
487: }
1.286 albertel 488: foreach my $part (@parts) {
489: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
490: eq 'APPROX_ANS' ||
491: $Apache::lonhomework::results{'resource.'.$part.'.award'}
492: eq 'EXACT_ANS') {
1.287 albertel 493: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 494: }
1.286 albertel 495: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 496: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 497: } else {
1.293 albertel 498: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 499: if ($last_reset) {
1.293 albertel 500: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 501: $aggregate{$symb."\0".$part."\0users"} = 1;
502: }
503: }
1.285 raeburn 504: }
1.287 albertel 505: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 506: }
1.292 raeburn 507: if (keys (%aggregate) > 0) {
1.289 albertel 508: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 509: $cdomain,$cname);
510: }
511: }
1.289 albertel 512:
1.65 albertel 513: sub checkout_msg {
1.211 albertel 514: my %lt=&Apache::lonlocal::texthash(
515: 'resource'=>'The resource needs to be checked out',
516: '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.',
517: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
518: 'checkout'=>'Check out Exam for Viewing',
519: 'checkout?'=>'Check out Exam?');
1.352 albertel 520: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 521: return (<<ENDCHECKOUT);
1.211 albertel 522: <h2>$lt{'resource'}</h2>
523: <p>$lt{'id_expln'}</p>
524: <font color="red">
525: <p>$lt{'warning'}</p>
1.91 albertel 526: </font>
1.352 albertel 527: <form name="checkout" method="POST" action="$uri">
1.91 albertel 528: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 529: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 530: </form>
531: ENDCHECKOUT
532: }
533:
1.252 albertel 534: sub firstaccess_msg {
1.253 albertel 535: my ($time,$symb)=@_;
536: my ($map)=&Apache::lonnet::decode_symb($symb);
537: my $foldertitle=&Apache::lonnet::gettitle($map);
538: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.352 albertel 539: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.252 albertel 540: return (<<ENDCHECKOUT);
1.253 albertel 541: <h2>The resources in "$foldertitle" are open for a limited time. Once you click the 'Show Resource' button below you have $time to complete all resources "$foldertitle".</h2>
1.352 albertel 542: <form name="markaccess" method="POST" action="$uri">
1.252 albertel 543: <input type="hidden" name="markaccess" value="yes" />
544: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
545: </form>
546: ENDCHECKOUT
547: }
548:
1.204 albertel 549: sub init_problem_globals {
550: my ($type)=@_;
551: #initialize globals
1.308 foxr 552: # For problems, we start out in part 0 (outside a <part> tag).
553: # and part 0 is used to describe the main body of the <problem>
554: #
1.204 albertel 555: if ($type eq 'problem') {
556: $Apache::inputtags::part='0';
557: @Apache::inputtags::partlist=('0');
1.266 albertel 558: $Apache::lonhomework::problemstatus=&get_problem_status('0');
559: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 560:
1.266 albertel 561: } elsif ($type eq 'library') {
1.204 albertel 562: $Apache::inputtags::part='';
563: @Apache::inputtags::partlist=();
564: $Apache::lonhomework::problemstatus='';
1.266 albertel 565: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 566:
1.304 albertel 567: } elsif ($type eq 'Task') {
568: $Apache::inputtags::part='0';
569: @Apache::inputtags::partlist=('0');
570: $Apache::lonhomework::problemstatus='';
571: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 572: }
573: @Apache::inputtags::responselist = ();
574: @Apache::inputtags::importlist = ();
575: @Apache::inputtags::previous=();
576: @Apache::inputtags::previous_version=();
577: $Apache::structuretags::printanswer='No';
578: @Apache::structuretags::whileconds=();
579: @Apache::structuretags::whilebody=();
580: @Apache::structuretags::whileline=();
581: $Apache::lonhomework::scantronmode=0;
582: undef($Apache::lonhomework::name);
1.358 albertel 583: undef($Apache::lonhomework::default_type);
584: undef($Apache::lonhomework::type);
1.204 albertel 585: }
586:
587: sub reset_problem_globals {
588: my ($type)=@_;
589: undef(%Apache::lonhomework::history);
590: undef(%Apache::lonhomework::results);
591: undef($Apache::inputtags::part);
1.208 albertel 592: #don't undef this, lonhomework.pm takes care of this, we use this to
593: #detect if we try to do 2 problems in one file
594: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 595: undef($Apache::lonhomework::name);
1.358 albertel 596: undef($Apache::lonhomework::default_type);
597: undef($Apache::lonhomework::type);
598: undef($Apache::lonhomework::scantronmode);
599: undef($Apache::lonhomework::problemstatus);
600: undef($Apache::lonhomework::ignore_response_errors);
1.204 albertel 601: }
602:
1.241 albertel 603: sub set_problem_state {
1.240 albertel 604: my ($part)=@_;
1.284 albertel 605: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 606: $Apache::lonhomework::history{"resource.$part.solved"}=
607: 'correct_by_student';
608: }
609: }
610:
1.241 albertel 611: sub get_problem_status {
612: my ($part)=@_;
1.267 albertel 613: my $problem_status;
1.284 albertel 614: if ($env{'request.state'} eq 'construct' &&
615: defined($env{'form.problemstatus'})) {
616: $problem_status=$env{'form.problemstatus'};
1.267 albertel 617: } else {
618: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
619: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 620: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 621: }
622: return $problem_status;
623: }
624:
1.9 albertel 625: sub start_problem {
1.326 albertel 626: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 627:
1.311 foxr 628: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 629: if (!$Apache::lonxml::metamode) {
630: &Apache::lonxml::startredirection();
631: }
1.311 foxr 632:
1.308 foxr 633: # Problems don't nest and we don't allow more than one <problem> in
634: # a .problem file.
635: #
1.184 albertel 636: if ( $Apache::inputtags::part ne '' ||
637: $Apache::lonhomework::parsing_a_problem) {
638: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 639: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 640: return '';
641: }
1.184 albertel 642:
643: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 644: &init_problem_globals('problem');
1.166 albertel 645:
1.284 albertel 646: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 647: $Apache::lonhomework::scantronmode=1;
648: }
1.161 albertel 649:
1.159 albertel 650: if ($target ne 'analyze') {
651: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 652: if (($env{'request.state'} eq 'construct') &&
653: defined($env{'form.problemtype'})) {
654: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 655: }
1.332 albertel 656: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 657: }
1.164 albertel 658: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 659: my $uri=$env{'request.uri'};
1.159 albertel 660: if ($uri=~/\.(\w+)$/) {
661: $Apache::lonhomework::type=$1;
662: &Apache::lonxml::debug("Using type of $1");
663: } else {
664: $Apache::lonhomework::type='problem';
665: &Apache::lonxml::debug("Using default type, problem, :$uri:");
666: }
1.87 albertel 667: }
1.301 albertel 668: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 669:
1.363 albertel 670: &initialize_storage();
1.389 albertel 671: if ($target ne 'analyze'
672: && $env{'request.state'} eq 'construct') {
673: &set_problem_state('0');
674: }
675:
1.366 albertel 676: if ($target eq 'web') {
677: &Apache::lonxml::debug(" grading history ");
678: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
679: }
1.363 albertel 680:
1.159 albertel 681: #added vars to the scripting enviroment
1.213 albertel 682: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 683: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 684: &Apache::run::run($expression,$safeeval);
1.159 albertel 685: my $status;
686: my $accessmsg;
687:
1.343 albertel 688: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 689: my ($result,$form_tag_start);
1.354 albertel 690: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
691: || $target eq 'edit') {
1.350 albertel 692: ($result,$form_tag_start) =
693: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
694: $name);
695: }
696:
1.284 albertel 697: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 698:
699: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
700: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
701: $target eq 'tex') {
702: #handle exam checkout
703: if ($Apache::lonhomework::type eq 'exam') {
704: my $token=
705: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 706: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 707: $token=&Apache::lonxml::maketoken();
708: $Apache::lonhomework::history{"resource.0.outtoken"}=
709: $token;
710: }
1.343 albertel 711: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 712: }
1.284 albertel 713: if ($env{'form.markaccess'}) {
1.252 albertel 714: &Apache::lonnet::set_first_access('map');
715: }
1.159 albertel 716: #handle rand seed in construction space
717: my $rndseed=&setup_rndseed($safeeval);
1.367 albertel 718: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 719: if ($env{'request.state'} ne "construct" &&
720: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 721: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
722: $rndseed.'" />'.
723: '<input type="submit" name="resetdata"
1.334 albertel 724: value="'.&mt('New Problem Variation').'" />';
725: if (exists($env{'form.username'})) {
726: $form_tag_start.=
1.164 albertel 727: '<input type="hidden" name="username"
1.284 albertel 728: value="'.$env{'form.username'}.'" />';
1.334 albertel 729: }
1.333 albertel 730: if ($env{'request.role.adv'}) {
1.267 albertel 731: $form_tag_start.=
1.300 albertel 732: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 733: if (defined($env{'form.showallfoils'})) {
1.267 albertel 734: $form_tag_start.='checked="on"';
735: }
1.300 albertel 736: $form_tag_start.= ' />'.&mt(' Show All Foils').
737: '</label>';
1.267 albertel 738: }
739: $form_tag_start.='<hr />';
1.162 albertel 740: }
1.324 albertel 741:
742: ($status,$accessmsg,my $slot_name,my $slot) =
743: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 744: push (@Apache::inputtags::status,$status);
1.324 albertel 745:
1.159 albertel 746: my $expression='$external::datestatus="'.$status.'";';
747: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
748: &Apache::run::run($expression,$safeeval);
749: &Apache::lonxml::debug("Got $status");
1.324 albertel 750:
1.159 albertel 751: if (( $status eq 'CLOSED' ) ||
752: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 753: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 754: ( $status eq 'BANNED') ||
1.216 albertel 755: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 756: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 757: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 758: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
759: $style);
1.159 albertel 760: if ( $target eq "web" ) {
1.343 albertel 761: my $msg;
1.159 albertel 762: if ($status eq 'UNAVAILABLE') {
1.245 albertel 763: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 764: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 765: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 766: }
1.216 albertel 767: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 768: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 769: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 770: $msg.=&checkout_msg();
1.252 albertel 771: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 772: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 773: } elsif ($status eq 'NOT_IN_A_SLOT') {
774: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
1.159 albertel 775: }
776: $result.=$msg.'<br />';
777: } elsif ($target eq 'tex') {
1.332 albertel 778: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
779: : '\begin{minipage}{\textwidth}';
780: $result.='\begin{document}\noindent \vskip 1 mm '.
781: $startminipage.'\vskip 0 mm';
1.159 albertel 782: if ($status eq 'UNAVAILABLE') {
1.211 albertel 783: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 784: } else {
1.211 albertel 785: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 786: }
787: }
1.324 albertel 788: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 789: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
790: $style);
1.324 albertel 791: if ($target eq 'web') {
1.375 albertel 792: $result .=
793: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 794: } elsif ($target eq 'grade') {
795: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
796: 'problem');
797: }
1.159 albertel 798: } elsif ($target eq 'web') {
1.360 albertel 799: if ($status eq 'CAN_ANSWER'
800: && $slot_name ne ''
801: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
802: # unproctored slot access, self checkin
803: &Apache::bridgetask::check_in('problem',undef,undef,
804: $slot_name);
805: }
1.368 albertel 806: $result.="\n $form_tag_start \t".
1.227 albertel 807: '<input type="hidden" name="submitted" value="yes" />';
808: # create a page header and exit
1.284 albertel 809: if ($env{'request.state'} eq "construct") {
810: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 811: }
812: # if we are viewing someone else preserve that info
1.284 albertel 813: if (defined $env{'form.grade_symb'}) {
1.227 albertel 814: foreach my $field ('symb','courseid','domain','username') {
815: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 816: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 817: }
818: }
819: } elsif ($target eq 'tex') {
1.319 foxr 820: $result .= 'INSERTTEXFRONTMATTERHERE';
821:
1.99 sakharuk 822: }
1.159 albertel 823: } elsif ($target eq 'edit') {
1.343 albertel 824: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 825: $Apache::lonxml::warnings_error_header=
826: &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 827: my $temp=&Apache::edit::insertlist($target,$token);
828: $result.=$temp;
829: } elsif ($target eq 'modified') {
830: $result=$token->[4];
831: } else {
832: # page_start returned a starting result, delete it if we don't need it
833: $result = '';
1.99 sakharuk 834: }
1.159 albertel 835: return $result;
1.9 albertel 836: }
837:
838: sub end_problem {
1.159 albertel 839: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 840: my $result;
1.310 foxr 841:
1.321 albertel 842: if (!$Apache::lonxml::metamode) {
843: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 844: $Apache::lonxml::post_evaluate=0;
1.321 albertel 845: }
1.319 foxr 846:
847: if ($target eq 'tex') {
1.321 albertel 848: # Figure out the front matter and replace the
849: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
850: # this in end_problem because whether or not we display due
851: # dates depends on whether due dates have already been
852: # displayed in the problem parts.
853:
1.319 foxr 854: my $frontmatter = '';
855: my $startminipage = '';
856: if (not $env{'form.problem_split'}=~/yes/) {
857: $startminipage = '\begin{minipage}{\textwidth}';
858: }
859: my $id = $Apache::inputtags::part;
860: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
861: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
862: my @packages = split /,/,$packages;
863: my $allow_print_points = 0;
864: foreach my $partial_key (@packages) {
865: if ($partial_key=~m/^part_0$/) {
866: $allow_print_points=1;
867: }
868: }
869: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
870: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
871: if (lc($env{'course.'.$env{'request.course.id'}.
872: '.disableexampointprint'}) eq 'yes') {
873: $allow_print_points=0;
874: }
875: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
876: my $begin_doc='\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$env{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent ';
877: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
878: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
879:
880: # Figure out what the due date is and if we need to print
881: # it in the problem header. We have been logging the
882: # last due date written to file.
883:
884: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
885: my $duedate = POSIX::strftime("%c",localtime($duetime));
886: my $temp_file;
887: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
888:
889: # Figure out what the last printed due date is or set it
890: # to the epoch if no duedates have been printed.
891:
892: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
893: if (-e $filename) {
894: $temp_file = Apache::File->new($filename);
895: my @due_file = <$temp_file>;
896: $due_file_content = $due_file[$#due_file];
897: chomp $due_file_content;
898: }
899:
900: # We display the due date iff it is not the same as the last
901: # duedate in problem header ($due_file_content), and
902: # none of our parts displayed a duedate.
903: #
904: my $parts_with_displayduedate;
905: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
906: $parts_with_displayduedate =
907: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
908: } else {
909: $parts_with_displayduedate = 0;
910: }
911: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
912: $temp_file = Apache::File->new('>'.$filename);
913: print $temp_file "$duetime\n";
914: if (not $env{'request.symb'} =~ m/\.page_/) {
915: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
916: $frontmatter .= $begin_doc.
917: '\textit{Due date: '.$duedate.'} '.$toc_line;
918: } else {
919: $frontmatter.= $begin_doc.$toc_line;
920: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
921: }
922: } else {
1.381 albertel 923: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\'.$startminipage;
1.319 foxr 924: }
925: } else {
926: if (not $env{'request.symb'} =~ m/\.page_/) {
927: $frontmatter .= $begin_doc.$toc_line;
928: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
929: } else {
1.381 albertel 930: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 931: }
932: }
933: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
934: }
935:
1.159 albertel 936: my $status=$Apache::inputtags::status['-1'];
937: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
938: $target eq 'tex') {
1.249 albertel 939: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 940: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 941: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
942: &Apache::inputtags::grade;
1.324 albertel 943: } elsif ($status eq 'NEEDS_CHECKIN') {
944: # no need to grade, and don't want to hide data
1.249 albertel 945: } else {
946: # move any submission data to .hidden
947: &Apache::inputtags::hidealldata($Apache::inputtags::part);
948: }
1.159 albertel 949: } elsif ( ($target eq 'web' || $target eq 'tex') &&
950: $Apache::inputtags::part eq '0' &&
1.252 albertel 951: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 952: # if part is zero, no <part>s existed, so we need show the current
953: # grading status
954: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
955: $result.= $gradestatus;
956: }
957: if (
1.284 albertel 958: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 959: ($target eq 'answer') || ($target eq 'tex')
960: ) {
1.227 albertel 961: if ($target ne 'tex' &&
1.284 albertel 962: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 963: $result.="</form>";
1.348 albertel 964: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 965: }
966: if ($target eq 'web') {
1.346 albertel 967: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 968: } elsif ($target eq 'tex') {
1.178 sakharuk 969: my $endminipage = '';
1.284 albertel 970: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 971: $endminipage = '\end{minipage}';
972: }
1.284 albertel 973: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 974: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 975: } else {
1.262 sakharuk 976: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 977: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 978: $result .= $endminipage.'\end{document} ';
979: } else {
1.382 albertel 980: $result .= $endminipage;
1.262 sakharuk 981: }
1.159 albertel 982: }
983: }
984: }
985: if ($target eq 'grade') {
986: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
987: &finalize_storage();
988: }
1.284 albertel 989: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
990: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 991: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 992: # normally we get it from above, but in CSTR
1.172 albertel 993: # we always show answer mode too.
1.159 albertel 994: }
995: } elsif ($target eq 'meta') {
996: if ($Apache::inputtags::part eq '0') {
1.179 albertel 997: @Apache::inputtags::response=();
1.159 albertel 998: $result=&Apache::response::mandatory_part_meta;
999: }
1.215 albertel 1000: $result.=&Apache::response::meta_part_order();
1.258 albertel 1001: $result.=&Apache::response::meta_response_order();
1.159 albertel 1002: } elsif ($target eq 'edit') {
1003: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1004: $result .= &problem_edit_footer();
1.320 albertel 1005: } elsif ($target eq 'modified') {
1006: $result .= $token->[2];
1.159 albertel 1007: }
1.155 albertel 1008:
1.284 albertel 1009: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1010: &Apache::inputtags::check_for_duplicate_ids();
1011: }
1.204 albertel 1012:
1013: &reset_problem_globals('problem');
1.159 albertel 1014:
1015: return $result;
1.48 albertel 1016: }
1017:
1.108 albertel 1018:
1.48 albertel 1019: sub start_library {
1.159 albertel 1020: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1021: my ($result,$form_tag_start);
1.371 albertel 1022: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1023: &init_problem_globals('library');
1024: $Apache::lonhomework::type='problem';
1025: }
1.159 albertel 1026: if ($target eq 'edit') {
1.343 albertel 1027: ($result,$form_tag_start)=
1028: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1029: 'Edit');
1030: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1031: my $temp=&Apache::edit::insertlist($target,$token);
1032: $result.=$temp;
1033: } elsif ($target eq 'modified') {
1034: $result=$token->[4];
1.340 albertel 1035: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1036: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1037: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1038: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1039: ($result,$form_tag_start)=
1040: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1041: $name);
1.159 albertel 1042: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 1043: $result.=" \n $form_tag_start".
1.159 albertel 1044: '<input type="hidden" name="submitted" value="yes" />';
1045: $result.=&problem_web_to_edit_header($rndseed);
1046: }
1047: return $result;
1.48 albertel 1048: }
1049:
1050: sub end_library {
1.159 albertel 1051: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1052: my $result='';
1053: if ($target eq 'edit') {
1054: $result=&problem_edit_footer();
1.371 albertel 1055: } elsif ($target eq 'web'
1056: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1057: && $env{'request.state'} eq "construct") {
1.349 albertel 1058: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1059: }
1.371 albertel 1060: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1061: &reset_problem_globals('library');
1062: }
1.159 albertel 1063: return $result;
1.197 www 1064: }
1065:
1066: sub start_definetag {
1.326 albertel 1067: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1068:
1069: my $result;
1070:
1071: my $name = $token->[2]->{'name'};
1.326 albertel 1072: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 ! albertel 1073: if ($target eq 'web') {
! 1074: if ($name=~/^\//) {
! 1075: $result=
! 1076: '<br /><table class="LC_sty_end"><tr><th>'.
! 1077: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
! 1078: } else {
! 1079: $result=
! 1080: '<br /><table class="LC_sty_begin"><tr><th>'.
! 1081: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
! 1082: }
! 1083: $skip = &HTML::Entities::encode($skip, '<>&"');
! 1084: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1085: }
1086: return $result;
1087: }
1088:
1089: sub end_definetag {
1090: return '';
1.1 albertel 1091: }
1092:
1093: sub start_block {
1.201 albertel 1094: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1095:
1096: my $result;
1.1 albertel 1097:
1.339 albertel 1098: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1099: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1100: my $code = $token->[2]->{'condition'};
1.385 albertel 1101: if (defined($code) && $code ne '') {
1.137 albertel 1102: if (!$Apache::lonxml::default_homework_loaded) {
1103: &Apache::lonxml::default_homework_load($safeeval);
1104: }
1.131 albertel 1105: $result = &Apache::run::run($code,$safeeval);
1106: &Apache::lonxml::debug("block :$code: returned :$result:");
1107: } else {
1108: $result='1';
1109: }
1110: if ( ! $result ) {
1.201 albertel 1111: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1112: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1113: }
1114: $result='';
1115: } elsif ($target eq 'edit') {
1116: $result .=&Apache::edit::tag_start($target,$token);
1117: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1118: $token,40);
1119: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1120: } elsif ($target eq 'modified') {
1121: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1122: $safeeval,'condition');
1123: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1124: }
1.131 albertel 1125: return $result;
1.1 albertel 1126: }
1127:
1128: sub end_block {
1.167 www 1129: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1130: my $result;
1131: if ($target eq "edit") {
1132: $result.= &Apache::edit::tag_end($target,$token,'');
1133: }
1134: return $result;
1135: }
1136:
1137: sub start_languageblock {
1.201 albertel 1138: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1139:
1140: my $result;
1141:
1.339 albertel 1142: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1143: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1144: my $include = $token->[2]->{'include'};
1145: my $exclude = $token->[2]->{'exclude'};
1.394 www 1146: my $preferred_language=(&Apache::loncommon::preferred_languages)[0];
1147: # This should not even happen, since we should at least have the server language
1.395 albertel 1148: if (!$preferred_language) { $preferred_language='en'; }
1.394 www 1149: # If the languageblock has no arguments, show the contents
1.201 albertel 1150: $result='1';
1.394 www 1151: # Do we have an include argument?
1.201 albertel 1152: if ($include) {
1.394 www 1153: # If include is specified, by default, don't render the block
1.201 albertel 1154: $result='';
1.394 www 1155: foreach my $included_language (split(/\,/,$include)) {
1156: # ... but if my preferred language is included, render it
1157: if ($included_language eq $preferred_language) { $result='1'; }
1.201 albertel 1158: }
1159: }
1.394 www 1160: # Do we have an exclude argument?
1.201 albertel 1161: if ($exclude) {
1.394 www 1162: $result='1';
1163: foreach my $excluded_language (split(/\,/,$exclude)) {
1164: if ($excluded_language eq $preferred_language) { $result='0'; }
1.201 albertel 1165: }
1166: }
1167: if ( ! $result ) {
1168: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1169: $style);
1170: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1171: }
1172: $result='';
1.167 www 1173: } elsif ($target eq 'edit') {
1174: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1175: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1176: $token,40);
1.211 albertel 1177: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1178: $token,40);
1179: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1180: } elsif ($target eq 'modified') {
1181: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1182: $safeeval,'include',
1183: 'exclude');
1.167 www 1184: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1185: }
1186: return $result;
1187: }
1188:
1189: sub end_languageblock {
1.170 www 1190: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1191: my $result;
1.201 albertel 1192: if ($target eq "edit") {
1.170 www 1193: $result.= &Apache::edit::tag_end($target,$token,'');
1194: }
1195: return $result;
1196: }
1197:
1198: sub start_instructorcomment {
1.201 albertel 1199: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1200:
1201: my $result;
1202:
1.339 albertel 1203: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1204: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1205: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1206: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1207: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1208: $parser,$style);
1.170 www 1209: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1210: }
1211: $result='';
1212: } elsif ($target eq 'edit') {
1213: $result .=&Apache::edit::tag_start($target,$token);
1214: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1215: }
1216: return $result;
1217: }
1218:
1219: sub end_instructorcomment {
1.159 albertel 1220: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1221: my $result;
1222: if ($target eq "edit") {
1223: $result.= &Apache::edit::tag_end($target,$token,'');
1224: }
1225: return $result;
1.4 tsai 1226: }
1227:
1228: sub start_while {
1.326 albertel 1229: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1230:
1.160 albertel 1231: my $result;
1.339 albertel 1232: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1233: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1234: my $code = $token->[2]->{'condition'};
1.4 tsai 1235:
1.160 albertel 1236: push( @Apache::structuretags::whileconds, $code);
1237: if (!$Apache::lonxml::default_homework_loaded) {
1238: &Apache::lonxml::default_homework_load($safeeval);
1239: }
1240: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1241: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1242: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1243: push( @Apache::structuretags::whileline, $token->[5]);
1244: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1245: if ( $result ) {
1246: &Apache::lonxml::newparser($parser,\$bodytext);
1247: }
1248: } elsif ($target eq 'edit') {
1249: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1250: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1251: $token,40);
1252: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1253: } elsif ($target eq 'modified') {
1254: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1255: $safeeval,'condition');
1256: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1257: }
1.160 albertel 1258: return $result;
1.4 tsai 1259: }
1260:
1261: sub end_while {
1.159 albertel 1262: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1263: my $result;
1264:
1.339 albertel 1265: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1266: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1267: my $code = pop(@Apache::structuretags::whileconds);
1268: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1269: my $line = pop(@Apache::structuretags::whileline);
1270: my $return = &Apache::run::run($code,$safeeval);
1271: my $starttime=time;
1272: my $error=0;
1273: while ($return) {
1274: if (time-$starttime >
1275: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1276: $return = 0; $error=1; next;
1.161 albertel 1277: }
1278: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1279: if ($target eq 'grade' || $target eq 'answer' ||
1280: $target eq 'analyze') {
1281: # grade/answer/analyze should produce no output but if we
1282: # are redirecting, the redirecter should know what to do
1283: # with the output
1284: if (!$Apache::lonxml::redirection) { undef($result); }
1285: }
1.161 albertel 1286: $return = &Apache::run::run($code,$safeeval);
1287: }
1288: if ($error) {
1.270 albertel 1289: &Apache::lonxml::error('<pre>'.&mt('Code ran too long. It ran for more than').' '.$Apache::lonnet::perlvar{'lonScriptTimeout'}.' '.&mt('seconds occured while running <while> on line').' '.$line.'</pre>');
1.160 albertel 1290: }
1291: } elsif ($target eq "edit") {
1292: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1293: }
1.160 albertel 1294: return $result;
1.1 albertel 1295: }
1.6 tsai 1296:
1.160 albertel 1297: # <randomlist show="1">
1.6 tsai 1298: # <tag1>..</tag1>
1299: # <tag2>..</tag2>
1300: # <tag3>..</tag3>
1.160 albertel 1301: # ...
1.6 tsai 1302: # </randomlist>
1303: sub start_randomlist {
1.326 albertel 1304: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1305: my $result;
1.339 albertel 1306: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1307: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1308: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1309: my $b_parser= HTML::LCParser->new(\$body);
1310: $b_parser->xml_mode(1);
1311: $b_parser->marked_sections(1);
1.159 albertel 1312: my $b_tok;
1313: my @randomlist;
1314: my $list_item;
1315: while($b_tok = $b_parser->get_token() ) {
1316: if($b_tok->[0] eq 'S') { # start tag
1317: # get content of the tag until matching end tag
1318: # get all text upto the matching tag
1319: # and push the content into @randomlist
1320: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1321: $b_parser);
1322: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1323: push(@randomlist,$list_item);
1324: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1325: # $list_item</b>";
1326: }
1327: if($b_tok->[0] eq 'T') { # text
1328: # what to do with text in between tags?
1329: # print "<b>TEXT $b_tok->[1]</b><br />";
1330: }
1331: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1332: # print "<b>END-TAG $b_tok->[1]</b><br />";
1333: # }
1334: }
1.303 albertel 1335: if (@randomlist) {
1336: my @idx_arr = (0 .. $#randomlist);
1337: &Apache::structuretags::shuffle(\@idx_arr);
1338: my $bodytext = '';
1339: my $show=$#randomlist;
1340: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1341: $showarg--;
1342: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1343: for(0 .. $show) {
1344: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1345: }
1346: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1347: }
1348: } elsif ($target eq 'edit' ) {
1349: $result .=&Apache::edit::tag_start($target,$token);
1350: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1351: $token,5);
1352: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1353: } elsif ($target eq 'modified' ) {
1354: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1355: $safeeval,'show');
1356: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1357: }
1358: return $result;
1.7 tsai 1359: }
1360:
1361: sub shuffle {
1362: my $a=shift;
1363: my $i;
1.303 albertel 1364: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1365: &Apache::response::pushrandomnumber();
1.159 albertel 1366: for($i=@$a;--$i;) {
1367: my $j=int(&Math::Random::random_uniform() * ($i+1));
1368: next if $i == $j;
1369: @$a[$i,$j] = @$a[$j,$i];
1370: }
1.251 albertel 1371: &Apache::response::poprandomnumber();
1.7 tsai 1372: }
1.6 tsai 1373: }
1374:
1375: sub end_randomlist {
1.159 albertel 1376: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1377: my $result;
1378: if ($target eq 'edit' ) {
1379: $result=&Apache::edit::tag_end($target,$token,
1380: 'End Randomly Parsed Block');
1381: }
1382: return $result;
1.6 tsai 1383: }
1384:
1.283 albertel 1385: sub ordered_show_check {
1386: my $last_part=$Apache::inputtags::partlist[-2];
1387: my $in_order=
1388: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1389: my $in_order_show=1;
1390: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1391: $in_order_show=&Apache::response::check_status($last_part);
1392: }
1393: return $in_order_show;
1394: }
1395:
1.11 albertel 1396: sub start_part {
1.326 albertel 1397: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1398: if (!$Apache::lonxml::metamode) {
1399: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1400: # duedates.
1401: }
1.159 albertel 1402: my $result='';
1.386 albertel 1403: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1404: $Apache::inputtags::part=$id;
1.177 albertel 1405: push(@Apache::inputtags::partlist,$id);
1406: @Apache::inputtags::response=();
1.159 albertel 1407: @Apache::inputtags::previous=();
1408: @Apache::inputtags::previous_version=();
1.241 albertel 1409: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1410: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1411: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1412: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1413: my $in_order_show=&ordered_show_check();
1.214 albertel 1414: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1415: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1416: &Apache::run::run($expression,$safeeval);
1.159 albertel 1417:
1418: if ($target eq 'meta') {
1.224 www 1419: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1420: return &Apache::response::mandatory_part_meta.
1421: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1422: } elsif ($target eq 'web' || $target eq 'grade' ||
1423: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1424: if ($hidden || !$in_order_show) {
1.326 albertel 1425: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1426: } else {
1427: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1428: push (@Apache::inputtags::status,$status);
1429: my $expression='$external::datestatus="'.$status.'";';
1430: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1431: &Apache::run::run($expression,$safeeval);
1.284 albertel 1432: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1433: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1434: }
1.216 albertel 1435: if (( $status eq 'CLOSED' ) ||
1436: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1437: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1438: ( $status eq 'BANNED') ||
1439: ( $status eq 'UNAVAILABLE') ||
1440: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1441: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1442: $style);
1.159 albertel 1443: if ( $target eq "web" ) {
1.211 albertel 1444: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1445: } elsif ( $target eq 'tex' ) {
1.284 albertel 1446: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1447: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1448: } else {
1.211 albertel 1449: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1450: }
1.159 albertel 1451: }
1452: } else {
1453: if ($target eq 'tex') {
1.284 albertel 1454: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1455: if ($$tagstack[-2] eq 'td') {
1.388 foxr 1456: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1457: } else {
1458: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1459: }
1.195 sakharuk 1460: }
1.159 albertel 1461: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1462: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1463: my @allkeys = split /,/,$allkeys;
1464: my $allow_print_points = 0;
1465: foreach my $partial_key (@allkeys) {
1.230 albertel 1466: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1467: if ($1 ne '0') {$allow_print_points=1;}
1468: }
1469: }
1.275 albertel 1470: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1471: if (defined($maxtries) && $maxtries < 0) {
1472: $allow_print_points=0;
1473: }
1.302 albertel 1474: if (lc($env{'course.'.$env{'request.course.id'}.
1475: '.disableexampointprint'}) eq 'yes') {
1476: $allow_print_points=0;
1477: }
1.222 sakharuk 1478: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1479: } elsif ($target eq 'web') {
1.356 www 1480: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1481: }
1482: }
1483: }
1484: } elsif ($target eq 'edit') {
1485: $result.=&Apache::edit::tag_start($target,$token);
1486: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1487: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1488: ' '.
1489: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1490: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1491: } elsif ($target eq 'modified') {
1492: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1493: $safeeval,'id','display');
1.159 albertel 1494: if ($constructtag) {
1.225 albertel 1495: #limiting ids to only letters numbers, and space
1.224 www 1496: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1497: $result = &Apache::edit::rebuild_tag($token);
1498: }
1499: }
1500: return $result;
1.11 albertel 1501: }
1502:
1503: sub end_part {
1.159 albertel 1504: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1505: &Apache::lonxml::debug("in end_part $target ");
1506: my $status=$Apache::inputtags::status['-1'];
1507: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1508: my $in_order_show=&ordered_show_check();
1.321 albertel 1509: my $result;
1510: if (!$Apache::lonxml::metamode) {
1511: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1512: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1513: }
1.312 albertel 1514: if ($target eq 'grade') {
1.249 albertel 1515: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1516: !$hidden && $in_order_show) {
1.311 foxr 1517: $result.=&Apache::inputtags::grade;
1.249 albertel 1518: } else {
1519: # move any submission data to .hidden
1520: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1521: }
1.283 albertel 1522: } elsif (($target eq 'web' || $target eq 'tex') &&
1523: !$hidden && $in_order_show) {
1.159 albertel 1524: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1525: $target);
1.212 albertel 1526: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1527: $gradestatus='';
1528: }
1.311 foxr 1529: $result.=$gradestatus;
1.265 sakharuk 1530: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1531: } elsif ($target eq 'edit') {
1.311 foxr 1532: $result.=&Apache::edit::end_table();
1.322 albertel 1533: } elsif ($target eq 'modified') {
1534: $result .= $token->[2];
1.159 albertel 1535: }
1536: pop @Apache::inputtags::status;
1537: $Apache::inputtags::part='';
1.295 albertel 1538: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1539: return $result;
1.11 albertel 1540: }
1.1 albertel 1541:
1.25 albertel 1542: sub start_preduedate {
1.326 albertel 1543: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1544: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1545: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1546: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1547: if (!$Apache::lonhomework::scantronmode &&
1548: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1549: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1550: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1551: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1552: }
1.24 albertel 1553: }
1.159 albertel 1554: return '';
1.24 albertel 1555: }
1556:
1.25 albertel 1557: sub end_preduedate {
1.159 albertel 1558: return '';
1.24 albertel 1559: }
1560:
1.369 foxr 1561: # In all the modes where <postanswerdate> text is
1562: # displayable, all we do is eat up the text between the start/stop
1563: # tags if the conditions are not right to display it.
1.25 albertel 1564: sub start_postanswerdate {
1.326 albertel 1565: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 1566: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
1567: &Apache::lonnet::allowed('pav',
1568: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 1569: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 1570: $target eq 'tex' ) {
1.300 albertel 1571: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 1572: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
1573: (($target eq 'tex') && !$pav)) {
1.326 albertel 1574: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1575: }
1576: }
1577: return '';
1.24 albertel 1578: }
1579:
1.25 albertel 1580: sub end_postanswerdate {
1.159 albertel 1581: return '';
1.24 albertel 1582: }
1583:
1.25 albertel 1584: sub start_notsolved {
1.326 albertel 1585: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1586: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1587: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1588: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1589: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1590: if ($gradestatus =~ /^correct/ &&
1591: &Apache::response::show_answer()) {
1.159 albertel 1592: &Apache::lonxml::debug("skipping");
1.326 albertel 1593: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1594: }
1.24 albertel 1595: }
1.159 albertel 1596: return '';
1.24 albertel 1597: }
1598:
1.25 albertel 1599: sub end_notsolved {
1.159 albertel 1600: return '';
1.24 albertel 1601: }
1602:
1603: sub start_solved {
1.326 albertel 1604: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1605: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1606: $target eq 'tex') {
1607: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1608: if ($gradestatus !~ /^correct/ ||
1609: !&Apache::response::show_answer()) {
1.326 albertel 1610: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1611: }
1.24 albertel 1612: }
1.159 albertel 1613: return '';
1.24 albertel 1614: }
1615:
1616: sub end_solved {
1.248 albertel 1617: return '';
1618: }
1619:
1620: sub start_problemtype {
1.326 albertel 1621: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1622: my $result;
1.339 albertel 1623: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1624: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1625: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1626: if (!defined($mode)) { $mode='show'; }
1627: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1628: my $found=0;
1629: foreach my $type (split(',',$for)) {
1630: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1631: }
1632: if ($mode eq 'show' && !$found) {
1.326 albertel 1633: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1634: }
1635: if ($mode eq 'hide' && $found) {
1.326 albertel 1636: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1637: }
1638: } elsif ($target eq 'edit') {
1639: $result .=&Apache::edit::tag_start($target,$token);
1640: $result.=&Apache::edit::select_arg('Mode:','mode',
1641: [['show','Show'],
1642: ['hide','Hide']]
1643: ,$token);
1644: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1645: [ ['exam','Exam/Quiz Problem'],
1646: ['survey','Survey'],
1647: ['problem','Homework Problem'] ]
1648: ,$token);
1649: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1650: } elsif ($target eq 'modified') {
1651: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1652: $safeeval,'mode','for');
1653: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1654: }
1655: return $result;
1656: }
1657:
1658: sub end_problemtype {
1.159 albertel 1659: return '';
1.24 albertel 1660: }
1.34 albertel 1661:
1662: sub start_startouttext {
1.159 albertel 1663: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1664: my @result=(''.'');
1665: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1666: return (@result);
1.34 albertel 1667: }
1.159 albertel 1668:
1.34 albertel 1669: sub end_startouttext {
1.326 albertel 1670: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1671: my $result='';
1672: my $text='';
1673:
1674: if ($target eq 'edit') {
1.326 albertel 1675: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.211 albertel 1676: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1677: <td>".&mt('Delete:').
1.159 albertel 1678: &Apache::edit::deletelist($target,$token)
1679: ."</td>
1.42 albertel 1680: <td>".
1.159 albertel 1681: &Apache::edit::insertlist($target,$token).
1.362 albertel 1682: '</td><td align="right" valign="top">' .
1683: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 1684: &Apache::edit::end_row().
1.362 albertel 1685: &Apache::edit::start_spanning_row()."\n".
1.255 www 1686: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1687: }
1688: if ($target eq 'modified') {
1.219 albertel 1689: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1690: }
1691: if ($target eq 'tex') {
1692: $result .= '\noindent ';
1693: }
1694: return $result;
1.34 albertel 1695: }
1.159 albertel 1696:
1.34 albertel 1697: sub start_endouttext {
1.159 albertel 1698: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1699: my $result='';
1700: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1701: if ($target eq "modified") {
1702: $result='<endouttext />'.
1.377 albertel 1703: &Apache::edit::handle_insertafter('startouttext');
1704: }
1.159 albertel 1705: return $result;
1.34 albertel 1706: }
1.159 albertel 1707:
1.34 albertel 1708: sub end_endouttext {
1.159 albertel 1709: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1710: my @result=('','');
1711: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1712: return (@result);
1.34 albertel 1713: }
1.159 albertel 1714:
1.45 albertel 1715: sub delete_startouttext {
1.326 albertel 1716: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1717: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 1718: my $text=$$parser['-1']->get_text("/endouttext");
1719: my $ntoken=$$parser['-1']->get_token();
1720: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1721: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1722: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1723: # they did the last time round
1724: &Apache::lonxml::increasedepth($ntoken);
1725: &Apache::lonxml::decreasedepth($ntoken);
1726: return 1;
1.193 www 1727: }
1728:
1729: sub start_simpleeditbutton {
1730: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1731: my $result='';
1.284 albertel 1732: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1733: ($target eq 'web') &&
1.330 albertel 1734: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 1735: my $url=$env{'request.noversionuri'};
1.193 www 1736: $url=~s/\?.*$//;
1.367 albertel 1737: my ($symb) = &Apache::lonnet::whichuser();
1.194 www 1738: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.356 www 1739: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'.&mt('Edit').'</a> - '.&mt('Note: it can take up to 10 minutes for changes to take effect for all users.').
1.196 www 1740: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1741: }
1742: return $result;
1743: }
1744:
1745: sub end_simpleeditbutton {
1746: return '';
1.45 albertel 1747: }
1.34 albertel 1748:
1.1 albertel 1749: 1;
1750: __END__
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