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1: # The LearningOnline Network 2: # User Authentication Module 3: # 4: # $Id: lonremote.pm,v 1.19 2006/03/15 22:11:04 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 $start_page = &Apache::loncommon::start_page('Remote Control', 47: $startupremote); 48: my $end_page = &Apache::loncommon::end_page(); 49: my $remoteinfo=&Apache::lonmenu::load_remote_msg($lowerurl); 50: my $setflags=&Apache::lonmenu::setflags(); 51: my $maincall=&Apache::lonmenu::maincall(); 52: 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."); 53: $r->print(<<ENDLAUNCH); 54: $start_page 55: $setflags 56: $windowinfo 57: $message 58: $remoteinfo 59: $maincall 60: $end_page 61: ENDLAUNCH 62: } 63: 64: sub collapseremote { 65: my ($r,$lowerurl)=@_; 66: # -------------------------------------------------------- Menu script and info 67: my $start_page = &Apache::loncommon::start_page('Collapse Remote Control'); 68: my $end_page = &Apache::loncommon::start_page('Collapse Remote Control'); 69: my $windowinfo=&Apache::lonmenu::close(); 70: # my $switch='<meta HTTP-EQUIV="Refresh" CONTENT="0.5; url='.$lowerurl.'">'; 71: my $message='<p>'.&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.").'</p>'; 72: $r->print(<<ENDCOLLAPSE); 73: $start_page 74: $windowinfo 75: <p> 76: $message 77: </p> 78: <a href="$lowerurl">Continue</a> 79: $end_page 80: ENDCOLLAPSE 81: &Apache::lonnet::put('environment',{'remote' => 'off'}); 82: &Apache::lonnet::appenv('environment.remote' => 'off'); 83: } 84: 85: sub handler { 86: my $r = shift; 87: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, 88: ['action','url']); 89: unless ($env{'form.action'}) { 90: if ($env{'environment.remote'} ne 'off') { 91: $env{'form.action'}='collapse'; 92: } else { 93: $env{'form.action'}='launch'; 94: } 95: } 96: 97: my $lowerurl=$env{'form.url'}; 98: unless ($lowerurl) { $lowerurl='/adm/menu'; } 99: 100: &Apache::loncommon::content_type($r,'text/html'); 101: $r->send_http_header; 102: return OK if $r->header_only; 103: 104: if ($env{'form.action'} eq 'launch') { 105: &launchremote($r,$lowerurl); 106: } else { 107: &collapseremote($r,$lowerurl); 108: } 109: return OK; 110: } 111: 112: 1; 113: __END__ 114: 115: