network

editor.py

@@ -1,4 +1,12 @@
+import network
 import tkinter as tk
+import sys
+
+listen_addr = ("0.0.0.0", int(sys.argv[1]))
+send_addr = ("192.168.0.255", int(sys.argv[2]))
+
+sock = network.Sock()
+waiting_for_text = True
 
 root = tk.Tk()
 
@@ -14,9 +22,31 @@ def diff(old, new):
 def area_input(event):
 	#print(area.get("1.0", "end"))
 	print(event)
-	if event.keycode == 25:
-		area.mark_set("insert", "1.0")
+	sock.send({"type":"insert", "start":"1.0", "text":area.get("1.0", "end")}, send_addr)
+	
+	#if event.keycode == 25:
+	#	area.mark_set("insert", "1.0")
+
+def on_request(r):
+	global waiting_for_text
+	print(r)
+	c, a = r
+	if c["type"] == "set":
+		if waiting_for_text:
+			area.replace("1.0", "end", c["text"])
+			waiting_for_text = False
+	elif c["type"] == "insert":
+		area.insert(c["start"], c["text"])
+	elif c["type"] == "replace":
+		area.replace(c["start"], c["end"], c["text"])
+	elif c["type"] == "get":
+		sock.send({"type":"set", "text":area.get("1.0", "end")}, send_addr)
+	area.insert("1.0", r[1])
 
 area.bind("<KeyRelease>", area_input)
 
+sock.listen(listen_addr, on_request)
+
+sock.send({"type":"get"}, send_addr)
+
 root.mainloop()

network.py

@@ -0,0 +1,76 @@
+import socket, os, sys, json
+from threading import Thread, Lock
+
+NETTRACE = str(os.environ.get("NETTRACE", "0")) == "1"
+
+class Sock:
+	def __init__(self):
+		self.sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+		self.sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
+		self.sock.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
+		self.queue = []
+		self.queue_lock = Lock()
+		self.sock_thread = None
+	
+	def send_raw(self, message, address):
+		if type(message) == str:
+			message = message.encode()
+		if NETTRACE:
+			print("Send to", tuple(address), ":", message, file=sys.stderr)
+		self.sock.sendto(message, tuple(address))
+	
+	# Envoie une requete
+	def send(self, message, address):
+		message = json.dumps(message)
+		if NETTRACE:
+			print("Send to", tuple(address), ":", message, file=sys.stderr)
+		self.sock.sendto(message.encode(), tuple(address))
+	
+	# Ecoute sur une adresse
+	# Si la fonction callback est donnee, elle sera appelee avec les requetes recues.
+	# La methode get ne fonctionnera pas si un callback est defini.
+	def listen(self, address, callback=None, length=65535):
+		self.sock_thread = SockThread(self, tuple(address), length, callback)
+		self.sock_thread.setDaemon(True)
+		self.sock_thread.start()
+	
+	def get_raw(self):
+		if len(self.queue) == 0:
+			return []
+		with self.queue_lock:
+			queue = self.queue
+			self.queue = []
+		return queue
+	
+	# Retourne la liste des requetes recues depuis le dernier appel a get
+	def get(self):
+		if len(self.queue) == 0:
+			return []
+		queue = []
+		with self.queue_lock:
+			for r in self.queue:
+				try:
+					queue.append([json.loads(r[0].decode()), r[1]])
+				except:
+					pass
+			self.queue.clear()
+		return queue
+
+class SockThread(Thread):
+	def __init__(self, sock, address, length, callback=None):
+		Thread.__init__(self)
+		self.sock = sock
+		self.length = length
+		self.sock.sock.bind(tuple(address))
+		self.callback = callback
+	
+	def run(self):
+		while True:
+			r = self.sock.sock.recvfrom(self.length)
+			if NETTRACE:
+				print("Rec from", r[1], ":", r[0], file=sys.stderr)
+			if self.callback:
+				self.callback([json.loads(r[0].decode()), r[1]])
+			else:
+				with self.sock.queue_lock:
+					self.sock.queue.append(r)