1: # The LearningOnline Network
2: # User Authentication Module
3: #
4: # $Id: lonremote.pm,v 1.12 2004/07/02 08:42:44 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:
30: package Apache::lonremote;
31:
32: use strict;
33: use Apache::Constants qw(:common);
34: use Apache::loncommon();
35: use Apache::lonnet();
36: use Apache::lonmenu();
37: use Apache::lonlocal;
38:
39: sub launchremote {
40: my ($r,$lowerurl)=@_;
41: &Apache::lonnet::put('environment',{'remote' => 'on'});
42: &Apache::lonnet::appenv('environment.remote' => 'on');
43: # -------------------------------------------------------- Menu script and info
44: my $windowinfo=&Apache::lonmenu::open($ENV{'browser.os'});
45: my $startupremote=&Apache::lonmenu::startupremote($lowerurl);
46: my $setflags=&Apache::lonmenu::setflags();
47: my $maincall=&Apache::lonmenu::maincall();
48: my $bodytag=&Apache::loncommon::bodytag('Launch Remote Control');
49: my $message=&mt("Launching of the Remote Control menu will fail if pop-up window filters are active. To use the Remote Control, disable the filter for this site.");
50: $r->print(<<ENDLAUNCH);
51: <html>
52: <head>
53: <title>The LearningOnline Network with CAPA</title>
54: $startupremote
55: </head>
56: $bodytag
57: $setflags
58: $windowinfo
59: $maincall
60: $message
61: </body>
62: </html>
63: ENDLAUNCH
64: }
65:
66: sub collapseremote {
67: my ($r,$lowerurl)=@_;
68: # -------------------------------------------------------- Menu script and info
69: my $bodytag=&Apache::loncommon::bodytag('Collapse Remote Control');
70: my $windowinfo=&Apache::lonmenu::close();
71: # my $switch='<meta HTTP-EQUIV="Refresh" CONTENT="0.5; url='.$lowerurl.'">';
72: my $message=&mt("The external menu (Remote Control) has been disabled, and you will be working with the smaller inline menu.\nYou may have either closed the Remote Control window, or it was blocked by a pop-up window filter in your browser.\nTo use the Remote Control, disable the filter for this site, and re-launch the Remote Control from the inline menu.");
73: $r->print(<<ENDCOLLAPSE);
74: <html>
75: <head>
76: <title>The LearningOnline Network with CAPA</title>
77: </head>
78: $bodytag
79: $windowinfo
80: <p>
81: $message
82: </p>
83: <a href="$lowerurl">Continue</a>
84: </body>
85: </html>
86: ENDCOLLAPSE
87: &Apache::lonnet::put('environment',{'remote' => 'off'});
88: &Apache::lonnet::appenv('environment.remote' => 'off');
89: }
90:
91: sub handler {
92: my $r = shift;
93: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
94: ['action','url']);
95: unless ($ENV{'form.action'}) {
96: if ($ENV{'environment.remote'} eq 'on') {
97: $ENV{'form.action'}='collapse';
98: } else {
99: $ENV{'form.action'}='launch';
100: }
101: }
102:
103: my $lowerurl=$ENV{'form.url'};
104: unless ($lowerurl) { $lowerurl='/adm/menu'; }
105:
106: &Apache::loncommon::content_type($r,'text/html');
107: $r->send_http_header;
108: return OK if $r->header_only;
109:
110: if ($ENV{'form.action'} eq 'launch') {
111: &launchremote($r,$lowerurl);
112: } else {
113: &collapseremote($r,$lowerurl);
114: }
115: return OK;
116: }
117:
118: 1;
119: __END__
120:
121:
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