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# -*- coding: utf-8 -*-
#
# AWL simulator - GUI code validator scheduling.
#
# Copyright 2017-2020 Michael Buesch <m@bues.ch>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
from __future__ import division, absolute_import, print_function, unicode_literals
#from awlsim.common.cython_support cimport * #@cy
from awlsim.common.compat import *
from awlsim.common.codevalidator import *
from awlsim.gui.util import *
__all__ = [
"GuiValidatorSched",
]
class GuiValidatorSched(QObject):
"""Code validator scheduling.
"""
TIMEOUT = AwlValidator.TIMEOUT
# A new result is available.
# The parameter may be None: No error occurred.
# Or an instance of AwlSimError.
haveValidationResult = Signal(object)
__singleton = None
@classmethod
def get(cls):
instance = cls.__singleton
if instance is None:
cls.__singleton = instance = cls()
return instance
def __init__(self):
QObject.__init__(self)
self.__project = None
self.__startTimer = QTimer(self)
self.__startTimer.setSingleShot(True)
self.__startTimer.timeout.connect(self.__startAsyncValidation)
self.__pollTimer = QTimer(self)
self.__pollTimer.setInterval(100)
self.__pollTimer.setSingleShot(True)
self.__pollTimer.timeout.connect(self.__pollValidationResult)
def startAsyncValidation(self, project, delaySec=0.0):
"""Start an asynchronous background document validation.
"""
printVerbose("Requesting asynchronous validation "
"(delay = %.1f s)" % delaySec)
self.__project = project
self.__startTimer.start(int(round(delaySec * 1000.0)))
def __startAsyncValidation(self):
project, self.__project = self.__project, None
if project is None:
return
# Get the actual project.
if callable(project):
project = project()
if not project.getGuiSettings().getEditorValidationEn():
return # Validation disabled.
validator = AwlValidator.get()
if not validator:
return
printVerbose("Starting asynchronous validation.")
validator.validate(project=project)
self.__pollTimer.start()
def __pollValidationResult(self):
"""Poll the background source code validation result.
"""
validator = AwlValidator.get()
if not validator:
return
running, exception = validator.getState()
if not running:
printVerbose("Finished asynchronous validation: %s" % (
"Not Ok" if exception else "Ok"))
self.haveValidationResult.emit(exception)
if running:
self.__pollTimer.start()
def syncValidation(self, project):
"""Start a validation and synchronously wait for it.
May return None: No error.
AwlSimError instance: Validation detected an error.
TIMEOUT: Validation failed due to timeout.
"""
validator = AwlValidator.get()
if not validator:
return None
self.__project = None
self.__startTimer.stop()
exception = validator.validateSync(project=project,
sleepFunc=sleepWithEventLoop)
if exception is self.TIMEOUT:
printVerbose("Synchronous validation timeout.")
else:
printVerbose("Finished synchronous validation: %s" % (
"Not Ok" if exception else "Ok"))
self.haveValidationResult.emit(exception)
return exception
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