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gtk-dbus-example.py
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gtk-dbus-example.py
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#!/usr/bin/env python
#
# [SNIPPET_NAME: Single Instance]
# [SNIPPET_CATEGORIES: dbus, PyGTK]
# [SNIPPET_DESCRIPTION: This small snippet shows how to use dbus to only limit a single instance running of your app]
# [SNIPPET_LICENSE: GPL]
# [SNIPPET_AUTHOR: Simon Vermeersch <[email protected]>]
import gtk
import gobject
import dbus
import dbus.service
import dbus.glib
class MainApp:
def __init__(self):
self.window = gtk.Window(gtk.WINDOW_TOPLEVEL)
self.window.set_size_request(350, 350)
self.label = gtk.Label("label")
self.window.add(self.label)
self.window.show_all()
self.window.connect("destroy", self.destroy)
def destroy(self, sender):
gtk.main_quit()
class ExampleService(dbus.service.Object):
def __init__(self, app):
self.app = app
bus_name = dbus.service.BusName(
'org.example.Sample', bus=dbus.SessionBus())
dbus.service.Object.__init__(self, bus_name, '/org/example/Sample')
@dbus.service.method(dbus_interface='org.example.Sample')
def show_window(self):
self.app.window.present()
if __name__ == "__main__":
if dbus.SessionBus().request_name("org.example.Sample") != dbus.bus.REQUEST_NAME_REPLY_PRIMARY_OWNER:
print "application already running"
method = dbus.SessionBus().get_object(
"org.example.Sample", "/org/example/Sample").get_dbus_method("show_window")
method()
else:
print "running application"
app = MainApp()
service = ExampleService(app)
gtk.main()