evennia/evennia/server/signals.py
2019-04-14 22:53:38 +02:00

86 lines
3.6 KiB
Python

"""
This module brings Django Signals into Evennia. These are events that
can be subscribed to by importing a given Signal and using the
following code.
THIS_SIGNAL.connect(callback, sender_object)
When other code calls THIS_SIGNAL.send(sender, **kwargs), the callback
will be triggered.
Callbacks must be in the following format:
def my_callback(sender, **kwargs):
...
This is used on top of hooks to make certain features easier to
add to contribs without necessitating a full takeover of hooks
that may be in high demand.
"""
from django.dispatch import Signal
# The sender is the created Account. This is triggered at the very end of Account.create()
# after the Account is created.
SIGNAL_ACCOUNT_POST_CREATE = Signal(providing_args=['ip', ])
# The Sender is the renamed Account. This is triggered by the username setter in AccountDB.
SIGNAL_ACCOUNT_POST_RENAME = Signal(providing_args=['old_name', 'new_name'])
# The Sender is the connecting Account. This is triggered when an Account connects cold;
# that is, it had no other sessions connected.
SIGNAL_ACCOUNT_POST_LOGIN = Signal(providing_args=['session', ])
# The Sender is the Account attempting to authenticate. This is triggered whenever a
# session tries to login to an Account but fails.
SIGNAL_ACCOUNT_POST_LOGIN_FAIL = Signal(providing_args=['session', ])
# The sender is the connecting Account. This is triggered whenever a session authenticates
# to an Account regardless of existing sessions.
SIGNAL_ACCOUNT_POST_CONNECT = Signal(providing_args=['session', ])
# The sender is the Account. This is triggered when an Account's final session disconnects.
SIGNAL_ACCOUNT_POST_LOGOUT = Signal(providing_args=['session', ])
# The sender is the disconnecting Account. This is triggered whenever a session disconnects
# from the account, regardless of how many it started with or remain.
SIGNAL_ACCOUNT_POST_DISCONNECT = Signal(providing_args=['session', ])
# The sender is the Object being puppeted. This is triggered after all puppeting hooks have
# been called. The Object has already been puppeted by this point.
SIGNAL_OBJECT_POST_PUPPET = Signal(providing_args=['session', 'account'])
# The sender is the Object being released. This is triggered after all hooks are called.
# The Object is no longer puppeted by this point.
SIGNAL_OBJECT_POST_UNPUPPET = Signal(providing_args=['session', 'account'])
# The sender is the Typed Object being released. This isn't necessarily an Object;
# it could be a script. It fires whenever the value of the Typed object's 'key'
# changes. Will need to use isinstance() or other filtering on things that use this.
SIGNAL_TYPED_OBJECT_POST_RENAME = Signal(providing_args=['old_key', 'new_key'])
# Django default signals (https://docs.djangoproject.com/en/2.2/topics/signals/)
from django.db.models.signals import (
pre_save, # Sent before a typeclass' .save is called.
post_save, # after "
pre_delete, # Sent before an object is deleted.
post_delete, # after "
m2m_changed, # Sent when a ManyToManyField changes.
pre_migrate, # Sent before migration starts
post_migrate, # after "
pre_init, # Sent at start of typeclass __init__ (before at_init)
post_init, # end
)
from django.core.signals import (
request_started, # Sent when HTTP request begins.
request_finished, # " ends.
)
from django.test.signals import (
setting_changed, # Sent when setting changes from override
template_rendered, # Sent when test system renders template
)
from django.db.backends.signals import (
connection_created, # Sent when making initial connection to database
)