Package core

Creates an Event Handler

Decorator to wrap a callable into an Event Handler that listens on a set of channels defined by channels. The type of the Event Handler defaults to "listener". If kwargs["filter"] is defined and is True, the Event Handler is defined as a Filter and has priority over Listener Event Handlers. If kwargs["target"] is defined and is not None, the Event Handler will listen for the spcified channels on the spcified Target Component's Channel.

Examples:

>>> @handler("foo")
... def foo():
...     pass
>>> @handler("bar", filter=True)
... def bar():
...     pass
>>> @handler("foo", "bar")
... def foobar():
...     pass
>>> @handler("x", target="other")
... def x():
...     pass