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#!/usr/bin/python
""" A simple graphical chat client to demonstrate the use of pybluez.
Opens a l2cap socket and listens on PSM 0x1001
Provides the ability to scan for nearby bluetooth devices and establish chat
sessions with them.
"""
import os
import sys
import time
import gtk
import gobject
import gtk.glade
import bluetooth
GLADEFILE="bluezchat.glade"
# *****************
def alert(text, buttons=gtk.BUTTONS_NONE, type=gtk.MESSAGE_INFO):
md = gtk.MessageDialog(buttons=buttons, type=type)
md.label.set_text(text)
md.run()
md.destroy()
class BluezChatGui:
def __init__(self):
self.main_window_xml = gtk.glade.XML(GLADEFILE, "bluezchat_window")
# connect our signal handlers
dic = { "on_quit_button_clicked" : self.quit_button_clicked,
"on_send_button_clicked" : self.send_button_clicked,
"on_chat_button_clicked" : self.chat_button_clicked,
"on_scan_button_clicked" : self.scan_button_clicked,
"on_devices_tv_cursor_changed" : self.devices_tv_cursor_changed
}
self.main_window_xml.signal_autoconnect(dic)
# prepare the floor listbox
self.devices_tv = self.main_window_xml.get_widget("devices_tv")
self.discovered = gtk.ListStore(gobject.TYPE_STRING,
gobject.TYPE_STRING)
self.devices_tv.set_model(self.discovered)
renderer = gtk.CellRendererText()
column1=gtk.TreeViewColumn("addr", renderer, text=0)
column2=gtk.TreeViewColumn("name", renderer, text=1)
self.devices_tv.append_column(column1)
self.devices_tv.append_column(column2)
self.quit_button = self.main_window_xml.get_widget("quit_button")
self.scan_button = self.main_window_xml.get_widget("scan_button")
self.chat_button = self.main_window_xml.get_widget("chat_button")
self.send_button = self.main_window_xml.get_widget("send_button")
self.main_text = self.main_window_xml.get_widget("main_text")
self.text_buffer = self.main_text.get_buffer()
self.input_tb = self.main_window_xml.get_widget("input_tb")
self.listed_devs = []
self.chat_button.set_sensitive(False)
self.peers = {}
self.sources = {}
self.addresses = {}
# the listening sockets
self.server_sock = None
# --- gui signal handlers
def quit_button_clicked(self, widget):
gtk.main_quit()
def scan_button_clicked(self, widget):
self.quit_button.set_sensitive(False)
self.scan_button.set_sensitive(False)
# self.chat_button.set_sensitive(False)
self.discovered.clear()
for addr, name in bluetooth.discover_devices (lookup_names = True):
self.discovered.append ((addr, name))
self.quit_button.set_sensitive(True)
self.scan_button.set_sensitive(True)
# self.chat_button.set_sensitive(True)
def send_button_clicked(self, widget):
text = self.input_tb.get_text()
if len(text) == 0: return
for addr, sock in self.peers.items():
sock.send(text)
self.input_tb.set_text("")
self.add_text("\nme - %s" % text)
def chat_button_clicked(self, widget):
(model, iter) = self.devices_tv.get_selection().get_selected()
if iter is not None:
addr = model.get_value(iter, 0)
if addr not in self.peers:
self.add_text("\nconnecting to %s" % addr)
self.connect(addr)
else:
self.add_text("\nAlready connected to %s!" % addr)
def devices_tv_cursor_changed(self, widget):
(model, iter) = self.devices_tv.get_selection().get_selected()
if iter is not None:
self.chat_button.set_sensitive(True)
else:
self.chat_button.set_sensitive(False)
# --- network events
def incoming_connection(self, source, condition):
sock, info = self.server_sock.accept()
address, psm = info
self.add_text("\naccepted connection from %s" % str(address))
# add new connection to list of peers
self.peers[address] = sock
self.addresses[sock] = address
source = gobject.io_add_watch (sock, gobject.IO_IN, self.data_ready)
self.sources[address] = source
return True
def data_ready(self, sock, condition):
address = self.addresses[sock]
data = sock.recv(1024)
if len(data) == 0:
self.add_text("\nlost connection with %s" % address)
gobject.source_remove(self.sources[address])
del self.sources[address]
del self.peers[address]
del self.addresses[sock]
sock.close()
else:
self.add_text("\n%s - %s" % (address, str(data)))
return True
# --- other stuff
def cleanup(self):
self.hci_sock.close()
def connect(self, addr):
sock = bluetooth.BluetoothSocket (bluetooth.L2CAP)
try:
sock.connect((addr, 0x1001))
except bluez.error, e:
self.add_text("\n%s" % str(e))
sock.close()
return
self.peers[addr] = sock
source = gobject.io_add_watch (sock, gobject.IO_IN, self.data_ready)
self.sources[addr] = source
self.addresses[sock] = addr
def add_text(self, text):
self.text_buffer.insert(self.text_buffer.get_end_iter(), text)
def start_server(self):
self.server_sock = bluetooth.BluetoothSocket (bluetooth.L2CAP)
self.server_sock.bind(("",0x1001))
self.server_sock.listen(1)
gobject.io_add_watch(self.server_sock,
gobject.IO_IN, self.incoming_connection)
def run(self):
self.text_buffer.insert(self.text_buffer.get_end_iter(), "loading..")
self.start_server()
gtk.main()
if __name__ == "__main__":
gui = BluezChatGui()
gui.run()
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