def _openTaskEditor(self, title, task=None):
uniqlist = list(set(self._completedValues + self._values))
dialog = AutoCompleteInputDialog(uniqlist, self._parent_window)
dialog.setWindowTitle(title)
dialog.setLabelText('Task:')
dialog.resize(500, 100)
if task:
dialog.setTextValue(task.text)
dialog.setModal(True)
if dialog.exec_():
return dialog.textValue(), True
return None, False
