I am working on something, and I need to interact with the user. I use Tk::Dialog, but the problem is that, when the DialogBox pop up, it is not really displayed on the screen, instead it is just an icon on the task bar.

I am using windows XP, and perl 5.8.4.

If you read the code - the red portion, you can see that I have tried something, but it does not work.

use IO::Select;
use IO::Socket;
use Tk::DialogBox;

use strict;
use warnings;

my $banned_type = {
    "cab" => 1,
    "class" => 1,
    "dat" => 1,
    "exe" => 1,
    "gif" => 1,
    "ico" => 1,
    "jpg" => 1,
    #"js" => 1,
    #"jsp" => 1,
    "png" => 1,
    "swf" => 1
};

my $trusted_site = {
"www.perlmonks.org"=>1
};

use constant RES_400 => "404 HTTP/1.1 Banned\r\n\r\n<html><body><h1>Ba
+nned</h1></body></html>";
use constant FAILED_TO_CONNECT_REMOTE => "404 HTTP/1.1 Banned\r\n\r\n<
+html><body>Failed to connect remote site %s</body></html>";

my $mw = MainWindow->new();
my $browser_listener = new IO::Socket::INET(Proto => "tcp",
                                            LocalAddr => "localhost",
                                            LocalPort => 8080,
                                            Reuse => 1,
                                            Timeout => 1,
                                            Listen => 10) || die "fail
+ed to create browser listener";
my $selector = new IO::Select();
my %pairs = ();
while (1) {
    if (my $browser = $browser_listener->accept()) {
        my $req = recv_req($browser);
        my $remote = send_req($browser, $req);
        if ($remote) {
            $selector->add($remote);
            $pairs{$remote} = $browser;
        };
    } 
    foreach my $remote ($selector->can_read(1)) {
        my $res = read_res($remote);
        if ($res) {
            send_res($pairs{$remote}, $res);
        } else {
            $selector->remove($remote);
            $remote->close();
            $pairs{$remote}->close();
            delete $pairs{$remote};
        }
    }
}

sub recv_req {
    my ($browser, $thread_id) = @_;
    my $content_length = 0;
    my $req = "";
    while (1) {
        my $chunk;
        $browser->recv($chunk, 10000);
        if ($chunk =~ m/Content-Length: (\d*)/) {
            $content_length = $1;
        }
        $req .= $chunk;
        last if ($chunk =~ "\r\n\r\n");
    }
    $req =~ /(.*?)\r\n\r\n(.*)/s;
    if (length($2) > 0) {
        $content_length -= length($2);
        print "after -, content_length = $content_length\n";
    }
    while ($content_length > 0) {
        my $chunk;
        $browser->recv($chunk, $content_length);
        $req .= $chunk;
        $content_length -= length($chunk);
    }
    return $req;
}

sub send_req {
    my ($browser, $req) = @_;
    my $host = ($req =~ m/Host:\s*(.*?)\r/)[0];
    my $remote;
    #some web site does not like repeat siet in get/post
    $req =~ s/$host//; #only once
    $req =~ s/http:\/\///;
    $req =~ m/.*?\s+(.*?)\s/;
    my $page = $1;
        if (!defined($trusted_site->{$host})) {

[download]
        my $dialog = $mw->DialogBox(-title => "Is $host trusted?", -bu
+ttons => ["Yes", "No"]);
        $dialog->geometry("600x100+0+0");
        $dialog->deiconify();
        my $answer = $dialog->Show(-global, -popover=>"cursor");
        
        if ($answer eq "Yes") {
            $trusted_site->{$host} = 1;
        } else {
            $trusted_site->{$host} = 0;
        }

[download]
 
}
    if (!$trusted_site->{$host} || is_banned_type($page)) {
            print "[$host, $page] is banned\n";
            print $browser RES_400;
            close($browser);
        } else {
            if ($remote = new IO::Socket::INET(Proto => "tcp", PeerAdd
+r => $host, PeerPort => 80)) {
                $remote->send($req);
            }
        }
    return $remote;
}

sub read_res {
    my $remote = shift;
    my $res;
    $remote->recv($res, 100000);
    if (!length($res)) {
        $res = undef;
    }
    return $res;
}

sub send_res {
    my ($browser, $res) = @_;
    $browser->send($res);
}


sub is_banned_type {
    my $tmp = lc(shift);
    if ($tmp ne "/") {
        $tmp = (split /\//, $tmp)[-1];
        my $type = (split /\./, $tmp)[-1];

        if ($type && exists($banned_type->{$type})) {
            return 1;
        } else {
            return 0;
        }
    }    
}

[download]

In reply to Tk::DialogBox as the top window by pg

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