mirror of
https://github.com/GNS3/gns3-gui.git
synced 2026-05-17 00:46:01 +03:00
77 lines
2.2 KiB
Python
77 lines
2.2 KiB
Python
# -*- coding: utf-8 -*-
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#
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# Copyright (C) 2015 GNS3 Technologies Inc.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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"""
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Thread showing a progress dialog and running the code from a lambda
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"""
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from ..qt import sip
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from ..qt import QtCore
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import logging
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log = logging.getLogger(__name__)
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class WaitForLambdaWorker(QtCore.QObject):
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"""
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Thread to wait for a lambda to be executed. All errors
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are display to the user.
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:param lambda_runner: lambda to execute in background
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"""
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error = QtCore.Signal(str, bool)
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finished = QtCore.Signal()
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updated = QtCore.Signal(int)
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def __init__(self, lambda_runner, allowed_exceptions=[]):
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"""
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:param lambda_runner: Code to execute in the worker
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:param allowed_exceptions: Array of exception that should only display an alert box, and not raises
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"""
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super().__init__()
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self._error = False
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self._lambda_runner = lambda_runner
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self._allowed_exceptions = allowed_exceptions
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def run(self):
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"""
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Worker starting point.
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"""
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try:
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self._lambda_runner()
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except Exception as e:
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if not self or sip.isdeleted(self):
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return
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# This exceptions will only show an error dialog
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# it's a normal application behavior like a file permission denied
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for ex in self._allowed_exceptions:
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if isinstance(e, ex):
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self.error.emit(str(e), True)
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return
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raise e
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if not self or sip.isdeleted(self):
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return
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self.finished.emit()
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def cancel(self):
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pass
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