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- retabinate
- <displaytitle /> and <displayduedate /> should only have an effect once

    1: # The LearningOnline Network with CAPA 
    2: # tags that create controlled output
    3: #
    4: # $Id: outputtags.pm,v 1.20 2002/10/16 19:21:32 albertel Exp $
    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: #
   28: 
   29: package Apache::outputtags; 
   30: 
   31: use strict;
   32: use Apache::lonnet;
   33: use POSIX qw(strftime);
   34: 
   35: BEGIN {
   36:     &Apache::lonxml::register('Apache::outputtags',('displayduedate','displaytitle'));
   37: }
   38: 
   39: sub initialize_outputtags {
   40:     %Apache::outputtags::showonce=();
   41: }
   42: 
   43: sub start_displayduedate {
   44:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
   45:     my $result;
   46:     if (exists($Apache::outputtags::showonce{'displayduedate'})) {
   47: 	return '';
   48:     } else {
   49: 	$Apache::outputtags::showonce{'displayduedate'}=1;
   50:     }
   51:     my $status=$Apache::inputtags::status['-1'];
   52:     &Apache::lonxml::debug("got a $status in duedatebox");
   53:     if (($status =~ /CAN.*_ANSWER/) && ($target eq 'web')) {
   54: 	my $format = &Apache::lonxml::get_param('format',$parstack,$safeeval);
   55: 	if ($format eq '') {
   56: 	    &Apache::lonxml::debug("using default format");
   57: 	    $format="%c";
   58: 	}
   59: 	my $id = $Apache::inputtags::part;
   60: 	my $date = &Apache::lonnet::EXT("resource.$id.duedate");
   61: 	&Apache::lonxml::debug("duedatebox found $date for $id");
   62: 	if ($date) {
   63: 	    $result ='<table border="on"><tr><td>Due at '.
   64: 		POSIX::strftime($format,localtime($date)).
   65: 			'</td></tr></table>';
   66: 	} else {
   67: 	    $result ='<table border="on"><tr><td>No due date set.</td></tr></table>';
   68: 	}
   69:     } elsif ( $target eq 'edit' ) {
   70: 	$result=&Apache::edit::tag_start($target,$token);
   71: 	$result.='</td></tr>';
   72: 	$result.=&Apache::edit::end_table();
   73:     }
   74:     return $result;
   75: }
   76: 
   77: sub end_displayduedate {
   78:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
   79:     my @result;
   80:     if ($target eq 'edit') { $result[1]='no'; }
   81:     return @result;
   82: }
   83: 
   84: sub start_displaytitle {
   85:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
   86:     my $result='';
   87:     if (exists($Apache::outputtags::showonce{'displayduedate'})) {
   88: 	return '';
   89:     } else {
   90: 	$Apache::outputtags::showonce{'displayduedate'}=1;
   91:     }
   92:     if ($target eq 'web') {
   93: 	$result="<h1>$Apache::lonhomework::name</h1>";
   94:     } elsif ($target eq 'edit') {
   95: 	$result=&Apache::edit::tag_start($target,$token);
   96: 	$result.='</td></tr>';
   97: 	$result.=&Apache::edit::end_table();
   98:     } elsif ($target eq 'tex') {
   99: 	$Apache::lonhomework::name=~s/%/\%/g;
  100: 	$Apache::lonhomework::name=~s/&/\&/g;
  101: 	$result='\vskip 0 mm\noindent\textbf{'.$Apache::lonhomework::name.'}\vskip 0 mm';
  102:     }
  103:     return $result;
  104: }
  105: 
  106: sub end_displaytitle {
  107:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
  108:     my @result;
  109:     if ($target eq 'edit') { $result[1]='no'; }
  110:     return @result;
  111: }
  112: 
  113: 1;
  114: __END__