---
name: "WWW::Mechanize::FormFiller::Value::Callback"
section: "3pm"
platform: "linux"
package: "libwww-mechanize-formfiller-perl"
version: "0.13-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/WWW::Mechanize::FormFiller::Value::Callback"
---

# WWW::Mechanize::FormFiller::Value::Callback(3pm)

Call Perl code to fill out a HTML form field

## NAME

WWW::Mechanize::FormFiller::Value::Callback - Call Perl code to fill out a HTML form field

## SYNOPSIS

```
  use WWW::Mechanize::FormFiller;
  use WWW::Mechanize::FormFiller::Value::Callback;
  my $f = WWW::Mechanize::FormFiller->new();
  # Create a default value for the HTML field "login"
  # This will put the current login name into the login field
  sub find_login {
    getlogin || getpwuid($<) || "Kilroy";
  };
  my $login = WWW::Mechanize::FormFiller::Value::Callback->new( login => \&find_login );
  $f->add_value( login => $login );
  # Alternatively take the following shorthand, which adds the
  # field to the list as well :
  # "If there is no password, put a nice number there
  my $password = $f->add_filler( password => Callback => sub { int rand(90) + 10 } );
```

## DESCRIPTION

This class provides a way to write a value returned by Perl code into a HTML field.

- new NAME, CODE

  Creates a new value which will correspond to the HTML field `"NAME"`. The `"CODE"` is a code reference that will return the value to be written into the HTML field. The code reference will be called with two parameters, the object and the HTML::Form::Input object.

- name \[NEWNAME\]

  Gets and sets the name of the HTML field this value corresponds to.

- value FIELD

  Returns the value to put into the HTML field.

### EXPORT

None by default.

### COPYRIGHT AND LICENSE

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

Copyright (C) 2002,2003 Max Maischein

## AUTHOR

Max Maischein, \<corion@cpan.org\>

Please contact me if you find bugs or otherwise improve the module. More tests are also very welcome !

## SEE ALSO

WWW::Mechanize, WWW::Mechanize::Shell, WWW::Mechanize::FormFiller, WWW::Mechanize::FormFiller::Value::Value, WWW::Mechanize::FormFiller::Value::Default, WWW::Mechanize::FormFiller::Value::Random, WWW::Mechanize::FormFiller::Value::Interactive