The LearningOnline Network with CAPA

# The LearningOnline Network
# User Authentication Module
#
# $Id: lonremote.pm,v 1.10 2003/09/22 00:48:32 www Exp $
#
# Copyright Michigan State University Board of Trustees
#
# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
#
# LON-CAPA is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# LON-CAPA is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with LON-CAPA; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#
# /home/httpd/html/adm/gpl.txt
#
# http://www.lon-capa.org/
#
# 5/21/99,5/22,5/25,5/26,5/27,5/29,6/2,6/11,6/14,6/15
# 16/11,12/16,
# 1/14,2/24,2/28,2/29,3/7,5/29,5/30,5/31,6/1,6/5,6/29,
# 7/1,7/10,10/2,10/5,10/9,10/26,10/30,11/10,
# 05/28,05/29 Gerd Kortemeyer
# 07/28,08/03 Gerd Kortemeyer
# 8/20 Gerd Kortemeyer

package Apache::lonremote;

use strict;
use Apache::Constants qw(:common);
use Apache::loncommon();
use Apache::lonnet();
use Apache::lonmenu();

sub launchremote {
    my ($r,$lowerurl)=@_;
    &Apache::lonnet::put('environment',{'remote' => 'on'});
    &Apache::lonnet::appenv('environment.remote' => 'on');
# -------------------------------------------------------- Menu script and info
    my $windowinfo=&Apache::lonmenu::open($ENV{'browser.os'});
    my $startupremote=&Apache::lonmenu::startupremote($lowerurl);
    my $setflags=&Apache::lonmenu::setflags();
    my $maincall=&Apache::lonmenu::maincall();
    my $bodytag=&Apache::loncommon::bodytag('Launch Remote Control');
    $r->print(<<ENDLAUNCH);
<html>
<head>
<title>The LearningOnline Network with CAPA</title>
$startupremote
</head>
$bodytag
$setflags
$windowinfo
$maincall
</body>
</html>
ENDLAUNCH
}

sub collapseremote {
    my ($r,$lowerurl)=@_;
# -------------------------------------------------------- Menu script and info
    my $bodytag=&Apache::loncommon::bodytag('Collapse Remote Control');
    my $windowinfo=&Apache::lonmenu::close();
    my $switch='<meta HTTP-EQUIV="Refresh" CONTENT="0.5; url='.$lowerurl.'">';
    $r->print(<<ENDCOLLAPSE);
<html>
<head>
<title>The LearningOnline Network with CAPA</title>
$switch
</head>
$bodytag
$windowinfo
</body>
</html>
ENDCOLLAPSE
   &Apache::lonnet::put('environment',{'remote' => 'off'});
   &Apache::lonnet::appenv('environment.remote' => 'off');
}

sub handler {
    my $r = shift;
    &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
                                            ['action','url']);
    unless ($ENV{'form.action'}) {
	if ($ENV{'environment.remote'} eq 'on') {
	    $ENV{'form.action'}='collapse';
        } else {
	    $ENV{'form.action'}='launch';
        }
    }

    my $lowerurl=$ENV{'form.url'};
    unless ($lowerurl) { $lowerurl='/adm/menu'; }

    &Apache::loncommon::content_type($r,'text/html');
    $r->send_http_header;
    return OK if $r->header_only;

    if ($ENV{'form.action'} eq 'launch') {
	&launchremote($r,$lowerurl);
    } else {
        &collapseremote($r,$lowerurl);
    }
    return OK;
}

1;
__END__