Mason callback support via Params::CallbackRequest.
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MasonX/Interp/WithCallbacks version 1.20

MasonX::Interp::WithCallbacks subclasses HTML::Mason::Interp in order to provide a Mason callback system built on Params::CallbackRequest. Callbacks may be either code references provided to the new() constructor, or methods defined in subclasses of Params::Callback. Callbacks are triggered either for every request or by specially named keys in the Mason request arguments, and all callbacks are executed at the beginning of a request, just before Mason creates and executes the request component stack.

This module brings support for a sort of plugin architecture based on Params::CallbackRequest to Mason. Mason then executes code before executing any components. This approach allows you to carry out logical processing of data submitted from a form, to affect the contents of the Mason request arguments (and thus the %ARGS hash in components), and even to redirect or abort the request before Mason handles it.


To install this module type the following:

perl Build.PL
./Build test
./Build install


This module requires these other modules and libraries:

  • Params::CallbackRequest 1.10 or later
  • HTML::Mason 1.23 or later
  • Params::Validate 0.59 or later
  • Exception::Class 1.10 or later

The object-oriented callback interface requires Perl 5.6 or later and these other modules and libraries:

  • Attribute::Handlers 0.77 or later
  • Clas::ISA

The test suite requires:

  • Test::Simple 0.17 or later

Testing of this module with HTML::Mason::ApacheHandler requires:

  • Apache::Test 1.03 or later
  • mod_perl 1.22 or later
  • LWP

Copyright and License

Copyright (c) 2003-2011 David E. Wheeler. Some Rights Reserved.

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