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#!/usr/bin/perl

use strict;
use warnings;

exit main();

sub main {

my $command = 'synclient';

my $is_enabled = is_touchpad_enabled($command);

my ($value, $action);
if (! defined $is_enabled) {
notify("Can't find the current status of the touchpad!");
return 1;
}
elsif ($is_enabled) {
($action, $value) = ("Disable", 1);
}
else {
($action, $value) = ("Enable", 0);
}

notify("$action touchpad");
my $arg = sprintf "TouchpadOff=%d", $value;
system($command, $arg);

return 0;
}


sub is_touchpad_enabled {
my ($command) = @_;

open my $handle, "$command -l|" or die "Can't execute $command: $!";
my $status;
while (my $line = <$handle>) {
if ($line =~ /^ \s+ TouchpadOff \s+ = \s+ (\d+)/x) {
return $1 ? 0 : 1;
}
}
close $handle;

return undef;
}


sub notify {
my (@message) = @_;
system('notify-send', '--icon', 'gnome-mouse', "@message");
}
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