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import logging
import dbus
import gobject
NAME_KEY = 'NAME'
PERCENT_KEY = 'PERCENT'
ICON_KEY = 'ICON'
PREVIEW_KEY = 'PREVIEW'
ACTIVITY_KEY = 'ACTIVITY'
FORMATS_KEY = 'FORMATS'
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])),
'object-deleted': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE,
([str])),
'object-state-changed': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE,
([str, str, int, str, str, str])),
}
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, object_id, name):
self.emit('object-added', object_id, name)
def _object_deleted_cb(self, object_id):
self.emit('object-deleted', object_id)
def _object_state_changed_cb(self, object_id, values):
self.emit('object-state-changed', object_id, values[NAME_KEY],
values[PERCENT_KEY], values[ICON_KEY], values[PREVIEW_KEY],
values[ACTIVITY_KEY])
def add_object(self, object_id, name):
self._dbus_service.add_object(object_id, name)
def add_object_format(self, object_id, formatType, data, on_disk):
self._dbus_service.add_object_format(object_id,
formatType,
data,
on_disk)
def delete_object(self, object_id):
self._dbus_service.delete_object(object_id)
def set_object_percent(self, object_id, percent):
self._dbus_service.set_object_percent(object_id, percent)
def get_object(self, object_id):
result_dict = self._dbus_service.get_object(object_id,)
return (result_dict[NAME_KEY], result_dict[PERCENT_KEY],
result_dict[ICON_KEY], result_dict[PREVIEW_KEY],
result_dict[ACTIVITY_KEY], result_dict[FORMATS_KEY])
def get_object_data(self, object_id, formatType):
return self._dbus_service.get_object_data(object_id, formatType,
byte_arrays=True)
_clipboard_service = None
def get_instance():
global _clipboard_service
if not _clipboard_service:
_clipboard_service = ClipboardService()
return _clipboard_service
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