# Copyright (C) 2008 Openismus GmbH <http://openismus.com/>
# Copyright (C) 2008 Collabora Ltd. <http://www.collabora.co.uk/>
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# of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
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# The above copyright notice and this permission notice shall be
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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__all__ = ('Server', )
__docformat__ = 'reStructuredText'

from _dbus_bindings import _Server
from dbus.connection import Connection

class Server(_Server):
"""An opaque object representing a server that listens for connections from
other applications.

This class is not useful to instantiate directly: you must subclass it and
either extend the method connection_added, or append to the
list on_connection_added.

:Since: 0.83
"""

def __new__(cls, address, connection_class=Connection,
mainloop=None, auth_mechanisms=None):
"""Construct a new Server.

:Parameters:
`address` : str
Listen on this address.
`connection_class` : type
When new connections come in, instantiate this subclass
of dbus.connection.Connection to represent them.
The default is Connection.
`mainloop` : dbus.mainloop.NativeMainLoop or None
The main loop with which to associate the new connections.
`auth_mechanisms` : sequence of str
Authentication mechanisms to allow. The default is to allow
any authentication mechanism supported by ``libdbus``.
"""
return super(Server, cls).__new__(cls, address, connection_class,
mainloop, auth_mechanisms)

def __init__(self, *args, **kwargs):

self.__connections = {}

self.on_connection_added = []
"""A list of callbacks to invoke when a connection is added.
They receive two arguments: this Server and the new Connection."""

self.on_connection_removed = []
"""A list of callbacks to invoke when a connection becomes
disconnected. They receive two arguments: this Server and the removed
Connection."""

# This method name is hard-coded in _dbus_bindings._Server.
# This is not public API.
def _on_new_connection(self, conn):
conn.call_on_disconnection(self.connection_removed)
self.connection_added(conn)

def connection_added(self, conn):
"""Respond to the creation of a new Connection.

This base-class implementation just invokes the callbacks in
the on_connection_added attribute.

:Parameters:
`conn` : dbus.connection.Connection
A D-Bus connection which has just been added.

The type of this parameter is whatever was passed
to the Server constructor as the ``connection_class``.
"""
if self.on_connection_added:
for cb in self.on_connection_added:
cb(conn)

def connection_removed(self, conn):
"""Respond to the disconnection of a Connection.

This base-class implementation just invokes the callbacks in
the on_connection_removed attribute.

:Parameters:
`conn` : dbus.connection.Connection
A D-Bus connection which has just become disconnected.

The type of this parameter is whatever was passed
to the Server constructor as the ``connection_class``.
"""
if self.on_connection_removed:
for cb in self.on_connection_removed:
cb(conn)

address = property(_Server.get_address)
id = property(_Server.get_id)
is_connected = property(_Server.get_is_connected)