class AptInstallation(GObject.GObject):
__gsignals__ = {
"finished": (GObject.SIGNAL_RUN_FIRST, GObject.TYPE_NONE, ())
}
def __init__(self, replacement):
GObject.GObject.__init__(self)
self.replacement = replacement
self.apt_client = AptClient()
def run(self):
apt_cache = open_apt_cache()
if not apt_cache.has_key(self.replacement["apt"]):
self.do_update()
else:
self.do_install()
def do_update(self):
trans_update = self.apt_client.update_cache()
trans_update.connect("finished", self.on_finished_update)
dia = AptProgressDialog(trans_update)
dia.run(close_on_finished=True,
show_error=False,
reply_handler=lambda: True,
error_handler=self.on_error)
return
def on_finished_update(self, trans, exit):
if exit == "exit-success":
GLib.timeout_add(200, self.do_install)
return True
def do_install(self):
trans_inst = self.apt_client.install_packages(
package_names=[self.replacement["apt"]])
trans_inst.connect("finished", self.on_finished_install)
dia = AptProgressDialog(transaction=trans_inst)
dia.connect("finished", self.on_install_dialog_finished)
dia.run(close_on_finished=True,
show_error=False,
reply_handler=lambda: True,
error_handler=self.on_error)
return
def on_install_dialog_finished(self, dia):
if self.exit == "exit-success":
try:
replacement_desktop = Gio.DesktopAppInfo.new(
self.replacement["desktopLauncher"])
launch_desktop_app(replacement_desktop)
except:
self.finished_dialog(
_("%s has been installed") % self.replacement["name"])
self.emit("finished")
def on_finished_install(self, trans, exit):
self.exit = exit
return
def finished_dialog(self, message):
dialog = Gtk.MessageDialog(message_type=Gtk.MessageType.INFO,
buttons=Gtk.ButtonsType.OK,
text=message)
dialog.run()
dialog.destroy()
return
def on_error(self, error):
if isinstance(error, aptdaemon.errors.NotAuthorizedError):
# Silently ignore auth failures
return
elif not isinstance(error, aptdaemon.errors.TransactionFailed):
# Catch internal errors of the client
error = aptdaemon.errors.TransactionFailed(ERROR_UNKNOWN,
str(error))
dia = AptErrorDialog(error)
dia.run()
dia.hide()
