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import dbus
import gobject
DBUS_SERVICE = "org.laptop.Clipboard"
DBUS_INTERFACE = "org.laptop.Clipboard"
DBUS_PATH = "/org/laptop/Clipboard"
class ClipboardService(gobject.GObject):
__gsignals__ = {
'object-added': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE,
([str, str, str])),
'object-deleted': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE,
([str])),
'object-state-changed': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE,
([str, int])),
}
def __init__(self):
gobject.GObject.__init__(self)
self._dbus_service = None
bus = dbus.SessionBus()
bus.add_signal_receiver(self._name_owner_changed_cb,
signal_name="NameOwnerChanged",
dbus_interface="org.freedesktop.DBus")
# Try to register to ClipboardService, if we fail, we'll try later.
try:
self._connect_clipboard_signals()
except dbus.DBusException, exception:
pass
def _connect_clipboard_signals(self):
bus = dbus.SessionBus()
proxy_obj = bus.get_object(DBUS_SERVICE, DBUS_PATH)
self._dbus_service = dbus.Interface(proxy_obj, DBUS_SERVICE)
self._dbus_service.connect_to_signal('object_added',
self._object_added_cb)
self._dbus_service.connect_to_signal('object_deleted',
self._object_deleted_cb)
self._dbus_service.connect_to_signal('object_state_changed',
self._object_state_changed_cb)
def _name_owner_changed_cb(self, name, old, new):
if name != DBUS_SERVICE:
return
if (not old and not len(old)) and (new and len(new)):
# ClipboardService started up
self._connect_clipboard_signals()
def _object_added_cb(self, name, mimeType, fileName):
self.emit('object-added', name, mimeType, fileName)
def _object_deleted_cb(self, fileName):
self.emit('object-deleted', fileName)
def _object_state_changed_cb(self, fileName, percent):
self.emit('object-state-changed', fileName, percent)
def add_object(self, name, mimeType, fileName):
self._dbus_service.add_object(name, mimeType, fileName)
def delete_object(self, fileName):
self._dbus_service.delete_object(fileName)
def set_object_state(self, fileName, percent):
self._dbus_service.set_object_state(fileName, percent)
_clipboard_service = None
def get_instance():
global _clipboard_service
if not _clipboard_service:
_clipboard_service = ClipboardService()
return _clipboard_service
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