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https://github.com/Hopiu/linkchecker.git
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82 lines
3.4 KiB
Python
82 lines
3.4 KiB
Python
# -*- coding: iso-8859-1 -*-
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# Copyright (C) 2011-2014 Bastian Kleineidam
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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 2 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 along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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from PyQt4 import QtCore, QtGui
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from .. import updater, configuration
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class UpdateThread (QtCore.QThread):
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"""Thread to check for updated versions."""
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def reset (self):
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"""Reset version information."""
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self.result = self.value = None
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def run (self):
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"""Check for updated version."""
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self.result, self.value = updater.check_update()
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class UpdateDialog (QtGui.QMessageBox):
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"""Dialog displaying results of an update check."""
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def __init__ (self, parent=None):
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"""Initialize dialog and start background update thread."""
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super(UpdateDialog, self).__init__(parent)
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title = _('%(app)s update information') % dict(app=configuration.App)
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self.setWindowTitle(title)
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self.thread = UpdateThread()
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self.thread.finished.connect(self.update)
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def reset (self):
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"""Reset dialog and restart update check."""
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self.thread.reset()
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self.thread.start()
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self.setIcon(QtGui.QMessageBox.Information)
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self.setText(_('Checking for updates...'))
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def update (self):
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"""Display update thread result (which must be available)."""
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result, value = self.thread.result, self.thread.value
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if result:
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if value is None:
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# no update available: display info
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text = _('Congratulations: the latest version '
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'%(app)s is installed.')
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attrs = dict(app=configuration.App)
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else:
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version, url = value
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if url is None:
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# current version is newer than online version
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text = _('Detected local or development version %(currentversion)s. '
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'Available version of %(app)s is %(version)s.')
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else:
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# display update link
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text = _('A new version %(version)s of %(app)s is '
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'available for <a href="%(url)s">download</a>.')
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attrs = dict(version=version, app=configuration.AppName,
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url=url, currentversion=configuration.Version)
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else:
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# value is an error message or None if UpdateThread has been
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# terminated
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if value is None:
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value = _('update thread has been terminated')
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self.setIcon(QtGui.QMessageBox.Warning)
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text = _('An error occured while checking for an '
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'update of %(app)s: %(error)s.')
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attrs = dict(error=value, app=configuration.AppName)
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self.setText(text % attrs)
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