diff options
Diffstat (limited to 'src/leap/bitmask/gui')
| -rw-r--r-- | src/leap/bitmask/gui/mainwindow.py | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/leap/bitmask/gui/mainwindow.py b/src/leap/bitmask/gui/mainwindow.py index 6959650b..a15c4dd8 100644 --- a/src/leap/bitmask/gui/mainwindow.py +++ b/src/leap/bitmask/gui/mainwindow.py @@ -125,6 +125,11 @@ class MainWindow(QtGui.QMainWindow): self._backend = BackendProxy() + # periodically check if the backend is alive + self._backend_checker = QtCore.QTimer(self) + self._backend_checker.timeout.connect(self._check_backend_status) + self._backend_checker.start(2000) + self._leap_signaler = LeapSignaler() self._leap_signaler.start() @@ -334,6 +339,23 @@ class MainWindow(QtGui.QMainWindow): logger.error("Bad call to the backend:") logger.error(data) + @QtCore.Slot() + def _check_backend_status(self): + """ + TRIGGERS: + self._backend_checker.timeout + + Check that the backend is running. Otherwise show an error to the user. + """ + online = self._backend.online + if not online: + logger.critical("Backend is not online.") + QtGui.QMessageBox.critical( + self, self.tr("Application error"), + self.tr("There is a problem contacting the backend, please " + "restart Bitmask.")) + self._backend_checker.stop() + def _backend_connect(self, only_tracked=False): """ Connect to backend signals. |