#!/usr/bin/perl

use strict; # https://perlmonks.org/?node_id=11141523
use warnings;
use Tk;
use Tk::DialogBox;
use Tk::Frame;

{ ## OPEN package

package Tk::GUIask;

use List::Util qw(first);
use base qw/Tk::Frame  /;

Construct Tk::Widget 'GUIask'; ## INSTALL MyNewWidget in pTk namespace

sub ClassInit  ## Called once to intitalise new class
  {
  my ($class , $mw ) = @_;
  $class ->SUPER::ClassInit($mw);
  }

sub Populate
  {
  my ($self , $args   ) = @_;
  my $tv = delete $args->{-textvariable}; # NOTE
  $self ->SUPER::Populate($args) ;

  require Tk::Entry;

# $self -> SUPER::Populate($args); ## NEEDED?

  my $search = "";

  my $frame = $self -> Frame(
    -borderwidth => 5,
    -relief      => 'ridge',
    ) -> pack();

  my $label = $frame -> Label (
    -fg => 'blue',
    -font => 30
    ) -> pack(-fill => 'x'  );

  my $entry = $frame -> Entry(
    -textvariable => $tv, # NOTE
    ) -> pack(-fill => 'x');

  my $button = $frame -> Button (
    -background => 'Red',
    -text => "Abort",
    -command => sub { ($frame -> destroy() ) if Tk::Exists($frame); }
    ) -> pack ( -side => 'top', -fill => 'x',);

  $self -> Advertise ('entry' => $frame );
  $self -> ConfigSpecs (
    DEFAULT => [$frame],
    text => [$label]     ## IF ID DONT have the string 'text => [$labe
+l]'
    );                    ## then it will choke on '-text => $header_m
+sg'
## WHY?

  $self -> Delegates ( DEFAULT => $frame,
    bind => $entry, # NOTE
    );

  } ## CLOSE Populate

1;

} ## CLOSE package

##       Invoke the MEGAWIDGET down here to test       ##

my $mw = MainWindow -> new;
$mw -> geometry('300x300+900+250');
$mw -> title('Main Window ');

my $header_msg ="FOOOOO";
my $input = '';

my $dialog = $mw ->DialogBox( -title => ' ', -buttons => []);

my $entry = $dialog -> GUIask( -textvariable => \$input,
  -label => $header_msg
  )-> pack();

$entry -> bind( '<Return>' , sub  # NOTE
    {
    print "input = $input\n";
    $dialog -> destroy();
    }
  );

$dialog->Show; # NOTE

MainLoop;
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