++ed by:
Damien Krotkine

NAME

Curses::Toolkit::EventListener - base class for event listeners

VERSION

version 0.211

DESCRIPTION

Base class for event listener. An event listener is an object that is attached to a widget / window / root window, that is capable of saying if it can handle a given event, and if yes, performs specific action on it.

CONSTRUCTOR

new

  input : accepted_events <HASHREF> : keys are a Event class, values are CODEREFs (see below)
          code <CODEREF> : code to be executed if an evet listener can handle the event

The CODEREfs receive an event as argument. If they return true, then the event listener can handle this event

METHODS

can_handle

Given an event, returns true if the listener is capable of handling this event

  input : a Curses::Toolkit::Event
  output : true or false

send_event

Given an event, send it to the listener. Returns the result of the event code.

  input : a Curses::Toolkit::Event
  output : the result of the event code execution

enable

Enables the event listener (by default the listener is enabled)

  input  : none
  output : the event listener

disable

Disables the event listener

  input  : none
  output : the event listener

is_enabled

Return the state of the listener

input : none output : true or false

is_attached

Returns true if the event listener is already attached to a widget

  input  : none
  output : true or false

detach

detach the event listener from the widget it is attached to.

  input  : none
  output : the event listener

AUTHOR

Damien "dams" Krotkine

COPYRIGHT AND LICENSE

This software is copyright (c) 2011 by Damien "dams" Krotkine.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.




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