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Annotation of loncom/interface/lonremote.pm, revision 1.20

1.1       www         1: # The LearningOnline Network
                      2: # User Authentication Module
                      3: #
1.20    ! albertel    4: # $Id: lonremote.pm,v 1.19 2006/03/15 22:11:04 albertel Exp $
1.1       www         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: #
1.11      www        28: ###
1.1       www        29: 
                     30: package Apache::lonremote;
                     31: 
                     32: use strict;
                     33: use Apache::Constants qw(:common);
                     34: use Apache::loncommon();
1.18      albertel   35: use Apache::lonnet;
1.1       www        36: use Apache::lonmenu();
1.11      www        37: use Apache::lonlocal;
1.1       www        38: 
                     39: sub launchremote {
1.2       www        40:     my ($r,$lowerurl)=@_;
1.3       www        41:     &Apache::lonnet::put('environment',{'remote' => 'on'});
                     42:     &Apache::lonnet::appenv('environment.remote' => 'on');
1.1       www        43: # -------------------------------------------------------- Menu script and info
1.18      albertel   44:     my $windowinfo=&Apache::lonmenu::open($env{'browser.os'});
1.4       www        45:     my $startupremote=&Apache::lonmenu::startupremote($lowerurl);
1.19      albertel   46:     my $start_page = &Apache::loncommon::start_page('Remote Control',
                     47: 						    $startupremote);
                     48:     my $end_page   = &Apache::loncommon::end_page();
1.14      albertel   49:     my $remoteinfo=&Apache::lonmenu::load_remote_msg($lowerurl);
1.4       www        50:     my $setflags=&Apache::lonmenu::setflags();
                     51:     my $maincall=&Apache::lonmenu::maincall();
1.11      www        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.");
1.2       www        53:     $r->print(<<ENDLAUNCH);
1.19      albertel   54: $start_page
1.4       www        55: $setflags
                     56: $windowinfo
1.14      albertel   57: $message
                     58: $remoteinfo
1.5       www        59: $maincall
1.19      albertel   60: $end_page
1.2       www        61: ENDLAUNCH
                     62: }
                     63: 
                     64: sub collapseremote {
                     65:     my ($r,$lowerurl)=@_;
                     66: # -------------------------------------------------------- Menu script and info
1.19      albertel   67:     my $start_page = &Apache::loncommon::start_page('Collapse Remote Control');
1.20    ! albertel   68:     my $end_page  =  &Apache::loncommon::end_page();
1.4       www        69:     my $windowinfo=&Apache::lonmenu::close();
1.12      albertel   70: #    my $switch='<meta HTTP-EQUIV="Refresh" CONTENT="0.5; url='.$lowerurl.'">';
1.13      albertel   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>'; 
1.2       www        72:     $r->print(<<ENDCOLLAPSE);
1.19      albertel   73: $start_page
1.4       www        74: $windowinfo
1.12      albertel   75: <p>
                     76: $message
                     77: </p>
                     78: <a href="$lowerurl">Continue</a>
1.19      albertel   79: $end_page
1.2       www        80: ENDCOLLAPSE
                     81:    &Apache::lonnet::put('environment',{'remote' => 'off'});
                     82:    &Apache::lonnet::appenv('environment.remote' => 'off');
1.1       www        83: }
                     84: 
                     85: sub handler {
                     86:     my $r = shift;
1.5       www        87:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
                     88:                                             ['action','url']);
1.18      albertel   89:     unless ($env{'form.action'}) {
                     90: 	if ($env{'environment.remote'} ne 'off') {
                     91: 	    $env{'form.action'}='collapse';
1.2       www        92:         } else {
1.18      albertel   93: 	    $env{'form.action'}='launch';
1.2       www        94:         }
                     95:     }
1.5       www        96: 
1.18      albertel   97:     my $lowerurl=$env{'form.url'};
1.6       www        98:     unless ($lowerurl) { $lowerurl='/adm/menu'; }
1.9       albertel   99: 
1.10      www       100:     &Apache::loncommon::content_type($r,'text/html');
1.9       albertel  101:     $r->send_http_header;
                    102:     return OK if $r->header_only;
1.5       www       103: 
1.18      albertel  104:     if ($env{'form.action'} eq 'launch') {
1.4       www       105: 	&launchremote($r,$lowerurl);
1.2       www       106:     } else {
1.4       www       107:         &collapseremote($r,$lowerurl);
1.2       www       108:     }
1.1       www       109:     return OK;
                    110: }
                    111: 
                    112: 1;
                    113: __END__
                    114: 
                    115: