#!perl -w

use strict;
use warnings;
use Win32::GUI 1.06 qw(CW_USEDEFAULT);
use Win32::GUI::AxWindow;

# Define the application menu
my @menu_defn = (
    "File"  => "File",
    ">OpenPDf" => { -name => "OpenPDF", -onClick => \&OpenPDF},
    ">Exit" => { -name => "Exit", -onClick => sub{-1}, },
);

my $menu = Win32::GUI::Menu->new(@menu_defn);


#Define the application window
my $mw = Win32::GUI::Window->new(
    -title => "Open PDF File",
    -size  => [400,400],
    -left  => CW_USEDEFAULT,
    -menu  => $menu,
    -onResize   => \&resize,
    -onTerminate => \&QuitFile, 
);

# Add a Acrobat AxtiveX control
my $PDFControl = new Win32::GUI::AxWindow (
      -parent   => $mw,
      -name     => "PDFControl",
      -control  => "AcroPDF.PDF.1",
      -pos      => [0, 0],
      -size     => [400, 400],
  );

#Show application window
$mw->Show();

#Enter event loop
Win32::GUI::Dialog();

#Hide windows on exit
$mw->Hide();
undef $mw;
exit(0);


#Open standard windows file open dialog box
sub OpenPDF {
   my ( @file, $file );
   my ( @parms );
   push @parms,
      -filter =>
         [ 'PDF - Adobe Acrobat File', '*.pdf',
         ],
  -directory => "c:\\",
  -title => 'Select a PDF file';
  @file = Win32::GUI::GetOpenFileName ( @parms );
#  print "PDF File: $file[ 0 ]\n";

  # Call Acorbat LoadFile Method
  $PDFControl->CallMethod("LoadFile", $file[ 0 ]);

  return 0;
}

#resize to fit user input
sub resize {
  my ($self) = @_;
  my ($width, $height) = ($self->GetClientRect())[2..3];
  $self->PDFControl->Resize($width+1, $height+1) if exists $self->{PDFControl};
}


#Exit the application
sub QuitFile {

  my $self = shift;

  #Set the Acrobat control to nothing
  $PDFControl->CallMethod("LoadFile", "");

  #This line is needed to keep the PERL interperter from crashing
  $PDFControl->Release();
    
  return -1;
}