58 lines
1.5 KiB
Python
58 lines
1.5 KiB
Python
from . import actor
|
|
|
|
def _ignore(*args, **kwargs):
|
|
pass
|
|
|
|
def _default_sync(turn, peer):
|
|
turn.send(peer, True)
|
|
|
|
class During(actor.Entity):
|
|
def __init__(self, on_add=None, on_msg=None, on_sync=None, name=None, inert_ok=False):
|
|
self.facets = {}
|
|
self._on_add = on_add or _ignore
|
|
self._on_msg = on_msg or _ignore
|
|
self._on_sync = on_sync or _default_sync
|
|
self.name = name
|
|
self.inert_ok = inert_ok
|
|
self.flatten_arg = True
|
|
|
|
def __repr__(self):
|
|
if self.name is None:
|
|
return super().__repr__()
|
|
return self.name
|
|
|
|
def _wrap(self, v):
|
|
return v if self.flatten_arg and isinstance(v, tuple) else (v,)
|
|
|
|
def on_publish(self, turn, v, handle):
|
|
facet = turn.facet(lambda turn: self._on_add(turn, *self._wrap(v)))
|
|
if self.inert_ok:
|
|
facet.prevent_inert_check()
|
|
self.facets[handle] = facet
|
|
|
|
def on_retract(self, turn, handle):
|
|
facet = self.facets.pop(handle, None)
|
|
if facet is not None:
|
|
turn.stop(facet)
|
|
|
|
def on_message(self, turn, v):
|
|
self._on_msg(turn, *self._wrap(v))
|
|
|
|
def on_sync(self, turn, peer):
|
|
self._on_sync(turn, peer)
|
|
|
|
# decorator
|
|
def add_handler(self, on_add):
|
|
self._on_add = on_add
|
|
return self
|
|
|
|
# decorator
|
|
def msg_handler(self, on_msg):
|
|
self._on_msg = on_msg
|
|
return self
|
|
|
|
# decorator
|
|
def sync_handler(self, on_sync):
|
|
self._on_sync = on_sync
|
|
return self
|