Rebecca Turner > MooseX-Event-v0.2.0 > MooseX::Event

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Module Version: v0.2.0   Source   Latest Release: MooseX-Event-0.3.0_2

NAME ^

MooseX::Event - A Node style event Role for Moose

VERSION ^

version v0.2.0

SYNOPSIS ^

  package Example {
      use MooseX::Event;
      
      has_event 'pinged';
      
      sub ping {
          my $self = shift;
          $self->emit('pinged');
      }
  }
  
  use 5.10.0;

  my $example = Example->new;

  $example->on( pinged => sub { say "Got a ping!" } );
  $example->on( pinged => sub { say "Got another ping!" } );

  $example->ping; # prints "Got a ping!" and "Got another ping!"

  $example->remove_all_listeners( "pinged" ); # Remove all of the pinged listeners

  $example->once( pinged => sub { say "First ping." } );
  $example->ping; $example->ping; # Only prints "First ping." once

  my $listener = $example->on( pinged => sub { say "Ping" } );
  $example->remove_listener( pinged => $listener );

  $example->ping(); # Does nothing

DESCRIPTION ^

This provides Node.js style events in a Role for Moose.

MooseX::Event is implemented as a Moose Role. To add events to your object:

  use MooseX::Event;

It provides a helper declare what events your object supports:

  has_event 'event';
  ## or
  has_events qw( event1 event2 event3 );

Users of your class can now call the "on" method in order to register an event handler:

  $obj->on( event1 => sub { say "I has an event"; } );

And clear their event listeners with:

  $obj->remove_all_listeners( "event1" );

Or add and clear just one listener:

  my $listener = $obj->on( event1 => sub { say "Event here"; } );
  $obj->remove_listener( event1 => $listener );

You can trigger events from your class with the "emit" method:

  $self->emit( event1 => ( "arg1", "arg2", "argn" ) );

You can remove the has_event and has_events helpers by unimporting MooseX::Event

  no MooseX::event;

CLASS METHODS ^

our method add_listener_wrapper( CodeRef $wrapper ) returns CodeRef

Wrappers are called in reverse declaration order. They take a the listener to be added as an argument, and return a wrapped listener.

our method remove_listener_wrapper( CodeRef $wrapper )

Removes a previously added listener wrapper.

HELPERS ^

sub has_event( Array[Str] *@event_names ) is export

sub has_events( Array[Str] *@event_names ) is export

Registers your class as being able to emit the event names listed.

RELATED ^

Object::Event
Mixin::Event::Dispatch
Class::Publisher
Event::Notify
Notification::Center
Class::Observable
Reflex::Role::Reactive
Aspect::Library::Listenable
http://nodejs.org/docs/v0.5.4/api/events.html

SEE ALSO ^

Please see those modules/websites for more information related to this module.

SUPPORT ^

Perldoc

You can find documentation for this module with the perldoc command.

  perldoc MooseX::Event

Websites

The following websites have more information about this module, and may be of help to you. As always, in addition to those websites please use your favorite search engine to discover more resources.

Bugs / Feature Requests

Please report any bugs or feature requests by email to bug-moosex-event at rt.cpan.org, or through the web interface at http://rt.cpan.org/NoAuth/ReportBug.html?Queue=MooseX-Event. You will be automatically notified of any progress on the request by the system.

Source Code

The code is open to the world, and available for you to hack on. Please feel free to browse it and play with it, or whatever. If you want to contribute patches, please send me a diff or prod me to pull from your repository :)

https://github.com/iarna/On-Event

  git clone https://github.com/iarna/On-Event.git

AUTHOR ^

Rebecca Turner <becca@referencethis.com>

COPYRIGHT AND LICENSE ^

This software is copyright (c) 2011 by Rebecca Turner.

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

DISCLAIMER OF WARRANTY ^

BECAUSE THIS SOFTWARE IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE SOFTWARE, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE SOFTWARE "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE SOFTWARE IS WITH YOU. SHOULD THE SOFTWARE PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR, OR CORRECTION.

IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE SOFTWARE AS PERMITTED BY THE ABOVE LICENCE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE SOFTWARE (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE SOFTWARE TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

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