Re: Blocking Main Window destroy siginal

["A. Pagaltzis" <pagaltzis gmx de>]

* Jasun Wurster <jasun pnxcorp com> [2004-09-20 04:46]:
> I would like to prevent my app from being closed by the user
> during some database writes and data transfers.
>
> Is there a way to block the Window destroy signal so that if
> the 'x' button in the main window is clicked it is ignored and
> the app keeps running?

It would be nice if you'd actually handle the click though,
providing the user with a visual indication also. Something like
the following, around the part of the code which handles the
updates.

    my $exit_request = 0;
    my $block_exit = $window->signal_connect( delete_event => sub {
        my $monolog = Gtk2::Dialog->new(
            'Please wait.',
            $window,
            [ qw( destroy-with-parent no-separator ) ],
        );
        $monolog->vbox->add( Gtk2::Label->new( "Updating database." ) );
        $monolog->show_all();
        $exit_request = TRUE;
        return TRUE; # we handled it, no further processing
    } );
    
    # ...
    # database updates here
    # ...

    $window->signal_handler_disconnect( $block_exit );
    Gtk2->main_quit if $exit_request;

Regards,
-- 
Aristotle
"If you can't laugh at yourself, you don't take life seriously enough."