class Session:
def __init__(self):
# TODO: consider saving and loading the connections list to a file
# to preserve the list between sessions
self._con_mgr = ConnectionManager()
# The data on the common clipboard.
self._clipboard_data = None
# Type of data on the clipboard (eg. text, bitmap, etc.)
# This should be one of the supported types in info.py
self._data_type = None
# None will mean that this client is owner, otherwise it should be a
# Connection object.
self._data_owner = None
# TODO add command line switch to change port, which would be passed in
# here
self._network = Network(con_callback=self._new_connection_request,
dis_callback=self._disconnect_request)
self._network.start()
def _new_connection_request(self, address, port):
conn = self._con_mgr.get_connection(address)
if conn:
#conn.status = Connection.REQUEST
conn.status = Connection.CONNECTED
else:
#self._con_mgr.new_connection("", address, Connection.REQUEST)
self._con_mgr.new_connection("", address, Connection.CONNECTED)
def _disconnect_request(self, address, port):
conn = self._con_mgr.get_connection(address)
if conn:
conn.status = Connection.NOT_CONNECTED
def get_clipboard_data(self):
self._clipboard_data = self._network.get_clipboard()
return self._clipboard_data
def get_clipboard_data_type(self):
self._data_type = self._network.get_clipboard_data_type()
return self._data_type
def get_clipboard_data_owner(self):
return self._data_owner
def set_clipboard_data(self, data, data_type):
"""
This is called (by the gui) when the user pastes to the app.
"""
self._clipboard_data = data
self._network.set_clipboard(self._clipboard_data)
self._data_type = data_type
self._data_owner = None
def connections(self):
"""
Returns a list of all the connections
"""
return self._con_mgr.connections
def get_connection(self, address):
"""
Returns the Connection object that has the given address
"""
return self._con_mgr.get_connection(address)
def new_connection(self, alias, address):
"""
Creates a new Connection to the given address and if there is
a Syncboard app running at that address then that user will
see a new connection appear (with the address on this end) with
status REQUEST.
After this has executed:
New Connection on both ends.
Connection on this end status: PENDING
Conneciton on other end status: REQUEST
"""
self._network.connect(address)
self._con_mgr.new_connection(alias, address)
def accept_connection(self, address):
"""
Called when the user accepts the request from the Connection with
the given address. Meaning, there was a Connection with status
REQUEST and user accepted it.
Before this is called:
Connection on this end status: REQUEST
Conneciton on other end status: PENDING
After this has executed:
Connection on this end status: CONNECTED
Conneciton on other end status: CONNECTED
"""
conn = self.get_connection(address)
if conn:
print "Connection from %s accepted" % address
conn.status = Connection.CONNECTED
else:
print "Error: no connection from %s exists" % address
def request_connection(self, address):
"""
This is like new_connection except in this case the Connection
with the given address already existed and had status NOT_CONNECTED.
Before this is called:
Connection on this end status: NOT_CONNECTED
Conneciton on other end status: NOT_CONNECTED
After this has executed:
Connection on this end status: PENDING
Conneciton on other end status: REQUEST
"""
self._network.connect(address)
conn = self.get_connection(address)
if conn:
print "Request to connect to %s sent" % address
#conn.status = Connection.PENDING
conn.status = Connection.CONNECTED
else:
print "Error: no connection to %s exists" % address
def disconnect(self, address):
"""
This is called when the user has an open connection to the given
address and wants to close the connection.
Before this is called:
Connection on this end status: CONNECTED
Conneciton on other end status: CONNECTED
After this has executed:
Connection on this end status: NOT_CONNECTED
Conneciton on other end status: NOT_CONNECTED
"""
self._network.disconnect(address)
conn = self.get_connection(address)
if conn:
print "Disconnected from %s" % address
conn.status = Connection.NOT_CONNECTED
else:
print "Error: no connection to %s exists" % address
def cancel_request(self, address):
"""
This is called when the user has requested a connection to the given
address and the request is still pending but the user wants to
cancel the request.
Before this is called:
Connection on this end status: PENDING
Conneciton on other end status: REQUEST
After this has executed:
Connection on this end status: NOT_CONNECTED
Conneciton on other end status: NOT_CONNECTED
"""
conn = self.get_connection(address)
if conn:
print "Request to %s canceled" % address
conn.status = Connection.NOT_CONNECTED
else:
print "Error: no connection to %s exists" % address
def del_connection(self, address):
"""
Removes the Connection with the given address from the list of
connections.
"""
conn = self.get_connection(address)
if conn:
if conn.status == Connection.CONNECTED:
self.disconnect(address)
self._con_mgr.del_connection(address)
else:
print "Error: no connection to %s exists" % address
def update_alias(self, address, new_alias):
"""
Changes the alias of the Connection with the given address to be
new_alias.
"""
conn = self.get_connection(address)
if conn:
print "Updated alias of %s to %s" % (address, new_alias)
conn.alias = new_alias
else:
print "Error: no connection to %s exists" % address
def close(self):
self._network.stop()
