Current File : //lib/python3/dist-packages/DistUpgrade/DistUpgradeFetcherKDE.py
# DistUpgradeFetcherKDE.py
# -*- Mode: Python; indent-tabs-mode: nil; tab-width: 4; coding: utf-8 -*-
#
# Copyright (c) 2008 Canonical Ltd
# Copyright (c) 2014-2018 Harald Sitter <sitter@kde.org>
#
# Author: Jonathan Riddell <jriddell@ubuntu.com>
#
# 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, see <http://www.gnu.org/licenses/>.
try:
# 14.04 has a broken pyqt5, so don't even try to import it and require
# pyqt4.
# In 14.04 various signals in pyqt5 can not be connected because it thinks
# the signal does not exist or has an incompatible signature. Since this
# potentially renders the GUI entirely broken and pyqt5 was not actively
# used back then it is fair to simply require qt4 on trusty systems.
from .utils import get_dist
if get_dist() == 'trusty':
raise ImportError
from PyQt5 import uic
from PyQt5.QtCore import QTranslator, PYQT_VERSION, \
QLocale
from PyQt5.QtGui import QIcon
from PyQt5.QtWidgets import QDialog, QDialogButtonBox, QMessageBox, \
QApplication
except ImportError:
from PyKDE4.kdeui import KIcon, KMessageBox, KStandardGuiItem
from PyQt4.QtGui import QDialog, QDialogButtonBox, QApplication, QIcon
from PyQt4.QtCore import PYQT_VERSION
from PyQt4 import uic
import apt_pkg
from DistUpgrade.DistUpgradeFetcherCore import DistUpgradeFetcherCore
from gettext import gettext as _
from urllib.request import urlopen
from urllib.error import HTTPError
import os
import apt
from .QUrlOpener import QUrlOpener
# TODO: uifile resolution is an utter mess and should be revised globally for
# both the fetcher and the upgrader GUI.
# TODO: make this a singleton
# We have no globally constructed QApplication available so we need to
# make sure that one is created when needed. Since from a module POV
# this can be happening in any order of the two classes this function takes
# care of it for the classes, the classes only hold a ref to the qapp returned
# to prevent it from getting GC'd, so in essence this is a singleton scoped to
# the longest lifetime of an instance from the Qt GUI. Since the lifetime is
# pretty much equal to the process' one we might as well singleton up.
def _ensureQApplication():
if not QApplication.instance():
# Force environment to make sure Qt uses suitable theming and UX.
os.environ["QT_PLATFORM_PLUGIN"] = "kde"
# For above settings to apply automatically we need to indicate that we
# are inside a full KDE session.
os.environ["KDE_FULL_SESSION"] = "TRUE"
# We also need to indicate version as otherwise KDElibs3 compatibility
# might kick in such as in QIconLoader.cpp:QString fallbackTheme.
os.environ["KDE_SESSION_VERSION"] = "5"
# Pretty much all of the above but for Qt5
os.environ["QT_QPA_PLATFORMTHEME"] = "kde"
app = QApplication(["ubuntu-release-upgrader"])
# Try to load default Qt translations so we don't have to worry about
# QStandardButton translations.
# FIXME: make sure we dep on l10n
translator = QTranslator(app)
if type(PYQT_VERSION) == int:
translator.load(QLocale.system(), 'qt', '_',
'/usr/share/qt5/translations')
else:
translator.load(QLocale.system(), 'qt', '_',
'/usr/share/qt4/translations')
app.installTranslator(translator)
return app
return QApplication.instance()
# Qt 5 vs. KDELibs4 compat functions
def _warning(text):
if type(PYQT_VERSION) == int:
QMessageBox.warning(None, "", text)
else:
KMessageBox.sorry(None, text, "")
def _icon(name):
if type(PYQT_VERSION) == int:
return QIcon.fromTheme(name)
else:
return KIcon(name)
class DistUpgradeFetcherKDE(DistUpgradeFetcherCore):
def __init__(self, new_dist, progress, parent, datadir):
DistUpgradeFetcherCore.__init__(self, new_dist, progress)
self.app = _ensureQApplication()
self.app.setWindowIcon(_icon("system-software-update"))
self.datadir = datadir
QUrlOpener().setupUrlHandles()
QApplication.processEvents()
def error(self, summary, message):
if type(PYQT_VERSION) == int:
QMessageBox.critical(None, summary, message)
else:
KMessageBox.sorry(None, message, summary)
def runDistUpgrader(self):
# now run it with sudo
if os.getuid() != 0:
os.execv("/usr/bin/pkexec",
["pkexec",
self.script + " --frontend=DistUpgradeViewKDE"])
else:
os.execv(self.script,
[self.script, "--frontend=DistUpgradeViewKDE"] +
self.run_options)
def showReleaseNotes(self):
# FIXME: care about i18n! (append -$lang or something)
# TODO: ^ what is this supposed to mean?
self.dialog = QDialog()
uic.loadUi(self.datadir + "/dialog_release_notes.ui", self.dialog)
upgradeButton = self.dialog.buttonBox.button(QDialogButtonBox.Ok)
upgradeButton.setText(_("&Upgrade"))
upgradeButton.setIcon(_icon("dialog-ok"))
cancelButton = self.dialog.buttonBox.button(QDialogButtonBox.Cancel)
cancelButton.setText(_("&Cancel"))
cancelButton.setIcon(_icon("dialog-cancel"))
self.dialog.setWindowTitle(_("Release Notes"))
self.dialog.show()
if self.new_dist.releaseNotesHtmlUri is not None:
uri = self._expandUri(self.new_dist.releaseNotesHtmlUri)
# download/display the release notes
# TODO: add some progress reporting here
result = None
try:
release_notes = urlopen(uri)
notes = release_notes.read().decode("UTF-8", "replace")
self.dialog.scrolled_notes.setText(notes)
result = self.dialog.exec_()
except HTTPError:
primary = "<span weight=\"bold\" size=\"larger\">%s</span>" % \
_("Could not find the release notes")
secondary = _("The server may be overloaded. ")
_warning(primary + "<br />" + secondary)
except IOError:
primary = "<span weight=\"bold\" size=\"larger\">%s</span>" % \
_("Could not download the release notes")
secondary = _("Please check your internet connection.")
_warning(primary + "<br />" + secondary)
# user clicked cancel
if result == QDialog.Accepted:
return True
return False
class KDEAcquireProgressAdapter(apt.progress.base.AcquireProgress):
def __init__(self, parent, datadir, label):
self.app = _ensureQApplication()
self.dialog = QDialog()
uiFile = os.path.join(datadir, "fetch-progress.ui")
uic.loadUi(uiFile, self.dialog)
self.dialog.setWindowTitle(_("Upgrade"))
self.dialog.installingLabel.setText(label)
self.dialog.buttonBox.rejected.connect(self.abort)
# This variable is used as return value for AcquireProgress pulses.
# Setting it to False will abort the Acquire and consequently the
# entire fetcher.
self._continue = True
QApplication.processEvents()
def abort(self):
self._continue = False
def start(self):
self.dialog.installingLabel.setText(
_("Downloading additional package files..."))
self.dialog.installationProgress.setValue(0)
self.dialog.show()
def stop(self):
self.dialog.hide()
def pulse(self, owner):
apt.progress.base.AcquireProgress.pulse(self, owner)
self.dialog.installationProgress.setValue(
(self.current_bytes + self.current_items) /
float(self.total_bytes + self.total_items) * 100)
current_item = self.current_items + 1
if current_item > self.total_items:
current_item = self.total_items
label_text = _("Downloading additional package files...")
if self.current_cps > 0:
label_text += _("File %s of %s at %sB/s") % (
self.current_items, self.total_items,
apt_pkg.size_to_str(self.current_cps))
else:
label_text += _("File %s of %s") % (
self.current_items, self.total_items)
self.dialog.installingLabel.setText(label_text)
QApplication.processEvents()
return self._continue
def mediaChange(self, medium, drive):
msg = _("Please insert '%s' into the drive '%s'") % (medium, drive)
if type(PYQT_VERSION) == int:
change = QMessageBox.question(None, _("Media Change"), msg,
QMessageBox.Ok, QMessageBox.Cancel)
if change == QMessageBox.Ok:
return True
else:
change = KMessageBox.questionYesNo(None, _("Media Change"),
_("Media Change") + "<br>" +
msg, KStandardGuiItem.ok(),
KStandardGuiItem.cancel())
if change == KMessageBox.Yes:
return True
return False
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