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# install_twisted_rector must be called before importing the reactor
from __future__ import unicode_literals
from kivy.support import install_twisted_reactor
install_twisted_reactor()
# A Simple Client that send messages to the Echo Server
from twisted.internet import reactor, protocol
class EchoClient(protocol.Protocol):
def connectionMade(self):
self.factory.app.on_connection(self.transport)
def dataReceived(self, data):
self.factory.app.print_message(data.decode('utf-8'))
class EchoClientFactory(protocol.ClientFactory):
protocol = EchoClient
def __init__(self, app):
self.app = app
def startedConnecting(self, connector):
self.app.print_message('Started to connect.')
def clientConnectionLost(self, connector, reason):
self.app.print_message('Lost connection.')
def clientConnectionFailed(self, connector, reason):
self.app.print_message('Connection failed.')
from kivy.app import App
from kivy.uix.label import Label
from kivy.uix.textinput import TextInput
from kivy.uix.boxlayout import BoxLayout
# A simple kivy App, with a textbox to enter messages, and
# a large label to display all the messages received from
# the server
class TwistedClientApp(App):
connection = None
textbox = None
label = None
def build(self):
root = self.setup_gui()
self.connect_to_server()
return root
def setup_gui(self):
self.textbox = TextInput(size_hint_y=.1, multiline=False)
self.textbox.bind(on_text_validate=self.send_message)
self.label = Label(text='connecting...\n')
layout = BoxLayout(orientation='vertical')
layout.add_widget(self.label)
layout.add_widget(self.textbox)
return layout
def connect_to_server(self):
reactor.connectTCP('localhost', 8000, EchoClientFactory(self))
def on_connection(self, connection):
self.print_message("Connected successfully!")
self.connection = connection
def send_message(self, *args):
msg = self.textbox.text
if msg and self.connection:
self.connection.write(msg.encode('utf-8'))
self.textbox.text = ""
def print_message(self, msg):
self.label.text += "{}\n".format(msg)
if __name__ == '__main__':
TwistedClientApp().run()
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