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# DistUpgradeViewKDE.py #
 #  Copyright (c) 2007 Canonical Ltd
 #  Copyright (c) 2014 Harald Sitter <apachelogger@kubuntu.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, write to the Free Software
 #  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 #  USA
 
 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 Qt, QLocale, QTranslator, PYQT_VERSION, QTimer
 from PyQt5.QtWidgets import QTextEdit, QApplication, QDialog,\
 QMessageBox, QDialogButtonBox, QTreeWidgetItem, QPushButton, QWidget,\
 QHBoxLayout, QLabel
 from PyQt5.QtGui import QTextOption, QPixmap, QIcon, QTextCursor
 except ImportError:
 from PyQt4 import uic
 from PyQt4.QtCore import Qt, QLocale, QTranslator, PYQT_VERSION, QTimer
 from PyQt4.QtGui import QTextEdit, QDialog, QTextOption, QApplication,\
 QMessageBox, QDialogButtonBox, QTreeWidgetItem, QPixmap, QIcon,\
 QPushButton, QWidget, QTextCursor, QHBoxLayout, QLabel
 # If we still throw an exception, bounce back to Main to try another UI.
 
 import sys
 import locale
 import logging
 import time
 import subprocess
 import traceback
 
 import apt
 import apt_pkg
 import os
 
 import pty
 
 from .DistUpgradeApport import run_apport, apport_crash
 
 from .DistUpgradeView import DistUpgradeView, FuzzyTimeToStr, InstallProgress, AcquireProgress
 
 import select
 import gettext
 from .DistUpgradeGettext import gettext as _
 from .DistUpgradeGettext import unicode_gettext
 
 from .QUrlOpener import QUrlOpener
 
 # FIXME: what's the purpose?
 def utf8(s, errors="strict"):
 if isinstance(s, bytes):
 return s.decode("UTF-8", errors)
 else:
 return s
 
 # FIXME: what's the purpose?
 def loadUi(file, parent):
 if os.path.exists(file):
 uic.loadUi(file, parent)
 else:
 #FIXME find file
 print("error, can't find file: " + file)
 
 
 class DumbTerminal(QTextEdit):
 """ A very dumb terminal """
 def __init__(self, installProgress, parent_frame):
 " really dumb terminal with simple editing support "
 QTextEdit.__init__(self, "", parent_frame)
 self.installProgress = installProgress
 self.setFontFamily("Monospace")
 # FIXME: fixed font size set!!!
 self.setFontPointSize(8)
 self.setWordWrapMode(QTextOption.NoWrap)
 self.setUndoRedoEnabled(False)
 self.setOverwriteMode(True)
 self._block = False
 #self.connect(self, SIGNAL("cursorPositionChanged()"),
 #             self.onCursorPositionChanged)
 
 def fork(self):
 """pty voodoo"""
 (self.child_pid, self.installProgress.master_fd) = pty.fork()
 if self.child_pid == 0:
 os.environ["TERM"] = "dumb"
 return self.child_pid
 
 def update_interface(self):
 (rlist, wlist, xlist) = select.select([self.installProgress.master_fd],[],[], 0)
 if len(rlist) > 0:
 line = os.read(self.installProgress.master_fd, 255)
 self.insertWithTermCodes(utf8(line))
 QApplication.processEvents()
 
 def insertWithTermCodes(self, text):
 """ support basic terminal codes """
 display_text = ""
 for c in text:
 # \b - backspace - this seems to comes as "^H" now ??!
 if ord(c) == 8:
 self.insertPlainText(display_text)
 self.textCursor().deletePreviousChar()
 display_text=""
 # \r - is filtered out
 elif c == chr(13):
 pass
 # \a - bell - ignore for now
 elif c == chr(7):
 pass
 else:
 display_text += c
 self.insertPlainText(display_text)
 
 def keyPressEvent(self, ev):
 """ send (ascii) key events to the pty """
 # no master_fd yet
 if not hasattr(self.installProgress, "master_fd"):
 return
 # special handling for backspace
 if ev.key() == Qt.Key_Backspace:
 #print("sent backspace")
 os.write(self.installProgress.master_fd, chr(8))
 return
 # do nothing for events like "shift"
 if not ev.text():
 return
 # now sent the key event to the termianl as utf-8
 os.write(self.installProgress.master_fd, ev.text().toUtf8())
 
 def onCursorPositionChanged(self):
 """ helper that ensures that the cursor is always at the end """
 if self._block:
 return
 # block signals so that we do not run into a recursion
 self._block = True
 self.moveCursor(QTextCursor.End)
 self._block = False
 
 
 class KDECdromProgressAdapter(apt.progress.base.CdromProgress):
 """ Report the cdrom add progress """
 def __init__(self, parent):
 self.status = parent.window_main.label_status
 self.progressbar = parent.window_main.progressbar_cache
 self.parent = parent
 
 def update(self, text, step):
 """ update is called regularly so that the gui can be redrawn """
 if text:
 self.status.setText(text)
 self.progressbar.setValue(step/float(self.totalSteps))
 QApplication.processEvents()
 
 def ask_cdrom_name(self):
 return (False, "")
 
 def change_cdrom(self):
 return False
 
 
 class KDEOpProgress(apt.progress.base.OpProgress):
 """ methods on the progress bar """
 def __init__(self, progressbar, progressbar_label):
 self.progressbar = progressbar
 self.progressbar_label = progressbar_label
 #self.progressbar.set_pulse_step(0.01)
 #self.progressbar.pulse()
 
 def update(self, percent=None):
 super(KDEOpProgress, self).update(percent)
 #if self.percent > 99:
 #    self.progressbar.set_fraction(1)
 #else:
 #    self.progressbar.pulse()
 #self.progressbar.set_fraction(self.percent/100.0)
 self.progressbar.setValue(self.percent)
 QApplication.processEvents()
 
 def done(self):
 self.progressbar_label.setText("")
 
 
 class KDEAcquireProgressAdapter(AcquireProgress):
 """ methods for updating the progress bar while fetching packages """
 # FIXME: we really should have some sort of "we are at step"
 # xy in the gui
 # FIXME2: we need to thing about mediaCheck here too
 def __init__(self, parent):
 AcquireProgress.__init__(self)
 # if this is set to false the download will cancel
 self.status = parent.window_main.label_status
 self.progress = parent.window_main.progressbar_cache
 self.parent = parent
 
 def media_change(self, medium, drive):
 msg = _("Please insert '%s' into the drive '%s'") % (medium,drive)
 change = QMessageBox.question(self.parent.window_main, _("Media Change"), msg, QMessageBox.Ok, QMessageBox.Cancel)
 if change == QMessageBox.Ok:
 return True
 return False
 
 def start(self):
 AcquireProgress.start(self)
 #self.progress.show()
 self.progress.setValue(0)
 self.status.show()
 
 def stop(self):
 self.parent.window_main.progress_text.setText("  ")
 self.status.setText(_("Fetching is complete"))
 
 def pulse(self, owner):
 """ we don't have a mainloop in this application, we just call processEvents here and elsewhere"""
 # FIXME: move the status_str and progress_str into python-apt
 # (python-apt need i18n first for this)
 AcquireProgress.pulse(self, owner)
 self.progress.setValue(self.percent)
 current_item = self.current_items + 1
 if current_item > self.total_items:
 current_item = self.total_items
 
 if self.current_cps > 0:
 current_cps = apt_pkg.size_to_str(self.current_cps)
 if isinstance(current_cps, bytes):
 current_cps = current_cps.decode(locale.getpreferredencoding())
 self.status.setText(_("Fetching file %li of %li at %sB/s") % (current_item, self.total_items, current_cps))
 self.parent.window_main.progress_text.setText("<i>" + _("About %s remaining") % FuzzyTimeToStr(self.eta) + "</i>")
 else:
 self.status.setText(_("Fetching file %li of %li") % (current_item, self.total_items))
 self.parent.window_main.progress_text.setText("  ")
 
 QApplication.processEvents()
 return True
 
 
 class KDEInstallProgressAdapter(InstallProgress):
 """methods for updating the progress bar while installing packages"""
 # timeout with no status change when the terminal is expanded
 # automatically
 TIMEOUT_TERMINAL_ACTIVITY = 240
 
 def __init__(self,parent):
 InstallProgress.__init__(self)
 self._cache = None
 self.label_status = parent.window_main.label_status
 self.progress = parent.window_main.progressbar_cache
 self.progress_text = parent.window_main.progress_text
 self.parent = parent
 try:
 self._terminal_log = open("/var/log/dist-upgrade/term.log","wb")
 except Exception as e:
 # if something goes wrong (permission denied etc), use stdout
 logging.error("Can not open terminal log: '%s'" % e)
 if sys.version >= '3':
 self._terminal_log = sys.stdout.buffer
 else:
 self._terminal_log = sys.stdout
 # some options for dpkg to make it die less easily
 apt_pkg.config.set("DPkg::StopOnError","False")
 
 def start_update(self):
 InstallProgress.start_update(self)
 self.finished = False
 # FIXME: add support for the timeout
 # of the terminal (to display something useful then)
 # -> longer term, move this code into python-apt
 self.label_status.setText(_("Applying changes"))
 self.progress.setValue(0)
 self.progress_text.setText(" ")
 # do a bit of time-keeping
 self.start_time = 0.0
 self.time_ui = 0.0
 self.last_activity = 0.0
 self.parent.window_main.showTerminalButton.setEnabled(True)
 
 def error(self, pkg, errormsg):
 InstallProgress.error(self, pkg, errormsg)
 logging.error("got an error from dpkg for pkg: '%s': '%s'" % (pkg, errormsg))
 # we do not report followup errors from earlier failures
 if gettext.dgettext('dpkg', "dependency problems - leaving unconfigured") in errormsg:
 return False
 summary = _("Could not install '%s'") % pkg
 msg = _("The upgrade will continue but the '%s' package may not "
 "be in a working state. Please consider submitting a "
 "bug report about it.") % pkg
 msg = "<big><b>%s</b></big><br />%s" % (summary, msg)
 
 dialogue = QDialog(self.parent.window_main)
 loadUi("dialog_error.ui", dialogue)
 self.parent.translate_widget_children(dialogue)
 dialogue.label_error.setText(msg)
 if errormsg != None:
 dialogue.textview_error.setText(errormsg)
 dialogue.textview_error.show()
 else:
 dialogue.textview_error.hide()
 # Make sure we have a suitable size depending on whether or not the view is shown
 dialogue.adjustSize()
 dialogue.exec_()
 
 def conffile(self, current, new):
 """ask question in case conffile has been changed by user"""
 logging.debug("got a conffile-prompt from dpkg for file: '%s'" % current)
 start = time.time()
 prim = _("Replace the customized configuration file\n'%s'?") % current
 sec = _("You will lose any changes you have made to this "
 "configuration file if you choose to replace it with "
 "a newer version.")
 markup = "<span weight=\"bold\" size=\"larger\">%s </span> \n\n%s" % (prim, sec)
 self.confDialogue = QDialog(self.parent.window_main)
 loadUi("dialog_conffile.ui", self.confDialogue)
 self.confDialogue.label_conffile.setText(markup)
 self.confDialogue.textview_conffile.hide()
 #FIXME, below to be tested
 #self.confDialogue.resize(self.confDialogue.minimumSizeHint())
 self.confDialogue.show_difference_button.clicked.connect(self.showConffile)
 
 # workaround silly dpkg
 if not os.path.exists(current):
 current = current+".dpkg-dist"
 
 # now get the diff
 if os.path.exists("/usr/bin/diff"):
 cmd = ["/usr/bin/diff", "-u", current, new]
 diff = subprocess.Popen(cmd, stdout=subprocess.PIPE).communicate()[0]
 diff = diff.decode("UTF-8", "replace")
 self.confDialogue.textview_conffile.setText(diff)
 else:
 self.confDialogue.textview_conffile.setText(_("The 'diff' command was not found"))
 result = self.confDialogue.exec_()
 self.time_ui += time.time() - start
 # if replace, send this to the terminal
 if result == QDialog.Accepted:
 os.write(self.master_fd, b"y\n")
 else:
 os.write(self.master_fd, b"n\n")
 
 def showConffile(self):
 if self.confDialogue.textview_conffile.isVisible():
 self.confDialogue.textview_conffile.hide()
 self.confDialogue.show_difference_button.setText(_("Show Difference >>>"))
 else:
 self.confDialogue.textview_conffile.show()
 self.confDialogue.show_difference_button.setText(_("<<< Hide Difference"))
 
 def fork(self):
 """pty voodoo"""
 (self.child_pid, self.master_fd) = pty.fork()
 if self.child_pid == 0:
 os.environ["TERM"] = "dumb"
 if ("DEBIAN_FRONTEND" not in os.environ or
 os.environ["DEBIAN_FRONTEND"] == "kde"):
 os.environ["DEBIAN_FRONTEND"] = "noninteractive"
 os.environ["APT_LISTCHANGES_FRONTEND"] = "none"
 logging.debug(" fork pid is: %s" % self.child_pid)
 return self.child_pid
 
 def status_change(self, pkg, percent, status):
 """update progress bar and label"""
 # start the timer when the first package changes its status
 if self.start_time == 0.0:
 #print("setting start time to %s" % self.start_time)
 self.start_time = time.time()
 self.progress.setValue(self.percent)
 self.label_status.setText(utf8(status.strip()))
 # start showing when we gathered some data
 if percent > 1.0:
 self.last_activity = time.time()
 self.activity_timeout_reported = False
 delta = self.last_activity - self.start_time
 # time wasted in conffile questions (or other ui activity)
 delta -= self.time_ui
 time_per_percent = (float(delta)/percent)
 eta = (100.0 - self.percent) * time_per_percent
 # only show if we have some sensible data (60sec < eta < 2days)
 if eta > 61.0 and eta < (60*60*24*2):
 self.progress_text.setText(_("About %s remaining") % FuzzyTimeToStr(eta))
 else:
 self.progress_text.setText(" ")
 
 def finish_update(self):
 self.label_status.setText("")
 
 def update_interface(self):
 """
 no mainloop in this application, just call processEvents lots here
 it's also important to sleep for a minimum amount of time
 """
 # log the output of dpkg (on the master_fd) to the terminal log
 while True:
 try:
 (rlist, wlist, xlist) = select.select([self.master_fd],[],[], 0)
 if len(rlist) > 0:
 line = os.read(self.master_fd, 255)
 self._terminal_log.write(line)
 self.parent.terminal_text.insertWithTermCodes(
 utf8(line, errors="replace"))
 else:
 break
 except Exception as e:
 print(e)
 logging.debug("error reading from self.master_fd '%s'" % e)
 break
 
 # now update the GUI
 try:
 InstallProgress.update_interface(self)
 except ValueError as e:
 logging.error("got ValueError from InstallProgress.update_interface. Line was '%s' (%s)" % (self.read, e))
 # reset self.read so that it can continue reading and does not loop
 self.read = ""
 # check about terminal activity
 if self.last_activity > 0 and \
 (self.last_activity + self.TIMEOUT_TERMINAL_ACTIVITY) < time.time():
 if not self.activity_timeout_reported:
 #FIXME bug 95465, I can't recreate this, so here's a hacky fix
 try:
 logging.warning("no activity on terminal for %s seconds (%s)" % (self.TIMEOUT_TERMINAL_ACTIVITY, self.label_status.text()))
 except UnicodeEncodeError:
 logging.warning("no activity on terminal for %s seconds" % (self.TIMEOUT_TERMINAL_ACTIVITY))
 self.activity_timeout_reported = True
 self.parent.window_main.konsole_frame.show()
 QApplication.processEvents()
 time.sleep(0.02)
 
 def wait_child(self):
 while True:
 self.update_interface()
 (pid, res) = os.waitpid(self.child_pid,os.WNOHANG)
 if pid == self.child_pid:
 break
 # we need the full status here (not just WEXITSTATUS)
 return res
 
 
 # inherit from the class created in window_main.ui
 # to add the handler for closing the window
 class UpgraderMainWindow(QWidget):
 
 def __init__(self):
 QWidget.__init__(self)
 #uic.loadUi("window_main.ui", self)
 loadUi("window_main.ui", self)
 
 def setParent(self, parentRef):
 self.parent = parentRef
 
 def closeEvent(self, event):
 close = self.parent.on_window_main_delete_event()
 if close:
 event.accept()
 else:
 event.ignore()
 
 
 class DistUpgradeViewKDE(DistUpgradeView):
 """KDE frontend of the distUpgrade tool"""
 def __init__(self, datadir=None, logdir=None):
 DistUpgradeView.__init__(self)
 # silence the PyQt4 logger
 logger = logging.getLogger("PyQt4")
 logger.setLevel(logging.INFO)
 if not datadir or datadir == '.':
 localedir=os.path.join(os.getcwd(),"mo")
 else:
 localedir="/usr/share/locale/ubuntu-release-upgrader"
 
 # FIXME: i18n must be somewhere relative do this dir
 try:
 gettext.bindtextdomain("ubuntu-release-upgrader", localedir)
 gettext.textdomain("ubuntu-release-upgrader")
 except Exception as e:
 logging.warning("Error setting locales (%s)" % e)
 
 # we test for DISPLAY here, QApplication does not throw a
 # exception when run without DISPLAY but dies instead
 if not "DISPLAY" in os.environ:
 raise Exception("No DISPLAY in os.environ found")
 self.app = QApplication(["ubuntu-release-upgrader"])
 
 # Try to load default Qt translations so we don't have to worry about
 # QStandardButton translations.
 translator = QTranslator(self.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')
 self.app.installTranslator(translator)
 
 QUrlOpener().setupUrlHandles()
 
 if os.path.exists("/usr/share/icons/oxygen/48x48/apps/system-software-update.png"):
 messageIcon = QPixmap("/usr/share/icons/oxygen/48x48/apps/system-software-update.png")
 else:
 messageIcon = QPixmap("/usr/share/icons/hicolor/48x48/apps/adept_manager.png")
 self.app.setWindowIcon(QIcon(messageIcon))
 
 self.window_main = UpgraderMainWindow()
 self.window_main.setParent(self)
 self.window_main.show()
 
 self.prev_step = 0 # keep a record of the latest step
 
 self._opCacheProgress = KDEOpProgress(self.window_main.progressbar_cache, self.window_main.progress_text)
 self._acquireProgress = KDEAcquireProgressAdapter(self)
 self._cdromProgress = KDECdromProgressAdapter(self)
 
 self._installProgress = KDEInstallProgressAdapter(self)
 
 # reasonable fault handler
 sys.excepthook = self._handleException
 
 self.window_main.showTerminalButton.setEnabled(False)
 self.window_main.showTerminalButton.clicked.connect(self.showTerminal)
 
 # init gettext
 gettext.bindtextdomain("ubuntu-release-upgrader",localedir)
 gettext.textdomain("ubuntu-release-upgrader")
 self.translate_widget_children()
 self.window_main.label_title.setText(self.window_main.label_title.text().replace("Ubuntu", "Kubuntu"))
 
 # setup terminal text in hidden by default spot
 self.window_main.konsole_frame.hide()
 self.konsole_frame_layout = QHBoxLayout(self.window_main.konsole_frame)
 self.window_main.konsole_frame.setMinimumSize(600, 400)
 self.terminal_text = DumbTerminal(self._installProgress, self.window_main.konsole_frame)
 self.konsole_frame_layout.addWidget(self.terminal_text)
 self.terminal_text.show()
 
 # for some reason we need to start the main loop to get everything displayed
 # this app mostly works with processEvents but run main loop briefly to keep it happily displaying all widgets
 QTimer.singleShot(10, self.exitMainLoop)
 self.app.exec_()
 
 def exitMainLoop(self):
 print("exitMainLoop")
 self.app.exit()
 
 def translate_widget_children(self, parentWidget=None):
 if parentWidget == None:
 parentWidget = self.window_main
 if isinstance(parentWidget, QDialog) or isinstance(parentWidget, QWidget):
 if str(parentWidget.windowTitle()) == "Error":
 parentWidget.setWindowTitle( gettext.dgettext("kdelibs", "Error"))
 else:
 parentWidget.setWindowTitle(_( str(parentWidget.windowTitle()) ))
 
 if parentWidget.children() != None:
 for widget in parentWidget.children():
 self.translate_widget(widget)
 self.translate_widget_children(widget)
 
 def translate_widget(self, widget):
 if isinstance(widget, QLabel) or isinstance(widget, QPushButton):
 if str(widget.text()) == "&Cancel":
 kdelibs = gettext.translation(
 "kdelibs", gettext.textdomain("kdelibs"), fallback=True)
 widget.setText(unicode_gettext(kdelibs, "&Cancel"))
 elif str(widget.text()) == "&Close":
 kdelibs = gettext.translation(
 "kdelibs", gettext.textdomain("kdelibs"), fallback=True)
 widget.setText(unicode_gettext(kdelibs, "&Close"))
 elif str(widget.text()) != "":
 widget.setText( _(str(widget.text())).replace("_", "&") )
 
 def _handleException(self, exctype, excvalue, exctb):
 """Crash handler."""
 
 if (issubclass(exctype, KeyboardInterrupt) or
 issubclass(exctype, SystemExit)):
 return
 
 # we handle the exception here, hand it to apport and run the
 # apport gui manually after it because we kill u-m during the upgrade
 # to prevent it from popping up for reboot notifications or FF restart
 # notifications or somesuch
 lines = traceback.format_exception(exctype, excvalue, exctb)
 logging.error("not handled exception in KDE frontend:\n%s" % "\n".join(lines))
 # we can't be sure that apport will run in the middle of a upgrade
 # so we still show a error message here
 apport_crash(exctype, excvalue, exctb)
 if not run_apport():
 tbtext = ''.join(traceback.format_exception(exctype, excvalue, exctb))
 dialog = QDialog(self.window_main)
 loadUi("dialog_error.ui", dialog)
 self.translate_widget_children(self.dialog)
 dialog.crash_detail.setText(tbtext)
 # Make sure we have a suitable size depending on whether or not the view is shown
 dialog.adjustSize()
 dialog.exec_()
 sys.exit(1)
 
 def showTerminal(self):
 if self.window_main.konsole_frame.isVisible():
 self.window_main.konsole_frame.hide()
 self.window_main.showTerminalButton.setText(_("Show Terminal >>>"))
 else:
 self.window_main.konsole_frame.show()
 self.window_main.showTerminalButton.setText(_("<<< Hide Terminal"))
 self.window_main.resize(self.window_main.sizeHint())
 
 def getAcquireProgress(self):
 return self._acquireProgress
 
 def getInstallProgress(self, cache):
 self._installProgress._cache = cache
 return self._installProgress
 
 def getOpCacheProgress(self):
 return self._opCacheProgress
 
 def getCdromProgress(self):
 return self._cdromProgress
 
 def update_status(self, msg):
 self.window_main.label_status.setText(msg)
 
 def hideStep(self, step):
 image = getattr(self.window_main,"image_step%i" % step)
 label = getattr(self.window_main,"label_step%i" % step)
 image.hide()
 label.hide()
 
 def abort(self):
 step = self.prev_step
 if step > 0:
 image = getattr(self.window_main,"image_step%i" % step)
 if os.path.exists("/usr/share/icons/oxygen/16x16/actions/dialog-cancel.png"):
 cancelIcon = QPixmap("/usr/share/icons/oxygen/16x16/actions/dialog-cancel.png")
 elif os.path.exists("/usr/lib/kde4/share/icons/oxygen/16x16/actions/dialog-cancel.png"):
 cancelIcon = QPixmap("/usr/lib/kde4/share/icons/oxygen/16x16/actions/dialog-cancel.png")
 else:
 cancelIcon = QPixmap("/usr/share/icons/crystalsvg/16x16/actions/cancel.png")
 image.setPixmap(cancelIcon)
 image.show()
 
 def setStep(self, step):
 if os.path.exists("/usr/share/icons/oxygen/16x16/actions/dialog-ok.png"):
 okIcon = QPixmap("/usr/share/icons/oxygen/16x16/actions/dialog-ok.png")
 elif os.path.exists("/usr/lib/kde4/share/icons/oxygen/16x16/actions/dialog-ok.png"):
 okIcon = QPixmap("/usr/lib/kde4/share/icons/oxygen/16x16/actions/dialog-ok.png")
 else:
 okIcon = QPixmap("/usr/share/icons/crystalsvg/16x16/actions/ok.png")
 
 if os.path.exists("/usr/share/icons/oxygen/16x16/actions/arrow-right.png"):
 arrowIcon = QPixmap("/usr/share/icons/oxygen/16x16/actions/arrow-right.png")
 elif os.path.exists("/usr/lib/kde4/share/icons/oxygen/16x16/actions/arrow-right.png"):
 arrowIcon = QPixmap("/usr/lib/kde4/share/icons/oxygen/16x16/actions/arrow-right.png")
 else:
 arrowIcon = QPixmap("/usr/share/icons/crystalsvg/16x16/actions/1rightarrow.png")
 
 if self.prev_step:
 image = getattr(self.window_main,"image_step%i" % self.prev_step)
 label = getattr(self.window_main,"label_step%i" % self.prev_step)
 image.setPixmap(okIcon)
 image.show()
 ##arrow.hide()
 self.prev_step = step
 # show the an arrow for the current step and make the label bold
 image = getattr(self.window_main,"image_step%i" % step)
 label = getattr(self.window_main,"label_step%i" % step)
 image.setPixmap(arrowIcon)
 image.show()
 label.setText("<b>" + label.text() + "</b>")
 
 def information(self, summary, msg, extended_msg=None):
 msg = "<big><b>%s</b></big><br />%s" % (summary,msg)
 
 dialogue = QDialog(self.window_main)
 loadUi("dialog_error.ui", dialogue)
 self.translate_widget_children(dialogue)
 dialogue.label_error.setText(msg)
 if extended_msg != None:
 dialogue.textview_error.setText(extended_msg)
 dialogue.textview_error.show()
 else:
 dialogue.textview_error.hide()
 dialogue.setWindowTitle(_("Information"))
 
 if os.path.exists("/usr/share/icons/oxygen/48x48/status/dialog-information.png"):
 messageIcon = QPixmap("/usr/share/icons/oxygen/48x48/status/dialog-information.png")
 elif os.path.exists("/usr/lib/kde4/share/icons/oxygen/48x48/status/dialog-information.png"):
 messageIcon = QPixmap("/usr/lib/kde4/share/icons/oxygen/48x48/status/dialog-information.png")
 else:
 messageIcon = QPixmap("/usr/share/icons/crystalsvg/32x32/actions/messagebox_info.png")
 dialogue.image.setPixmap(messageIcon)
 # Make sure we have a suitable size depending on whether or not the view is shown
 dialogue.adjustSize()
 dialogue.exec_()
 
 def error(self, summary, msg, extended_msg=None):
 msg="<big><b>%s</b></big><br />%s" % (summary, msg)
 
 dialogue = QDialog(self.window_main)
 loadUi("dialog_error.ui", dialogue)
 self.translate_widget_children(dialogue)
 dialogue.label_error.setText(msg)
 if extended_msg != None:
 dialogue.textview_error.setText(extended_msg)
 dialogue.textview_error.show()
 else:
 dialogue.textview_error.hide()
 
 if os.path.exists("/usr/share/icons/oxygen/48x48/status/dialog-error.png"):
 messageIcon = QPixmap("/usr/share/icons/oxygen/48x48/status/dialog-error.png")
 elif os.path.exists("/usr/lib/kde4/share/icons/oxygen/48x48/status/dialog-error.png"):
 messageIcon = QPixmap("/usr/lib/kde4/share/icons/oxygen/48x48/status/dialog-error.png")
 else:
 messageIcon = QPixmap("/usr/share/icons/crystalsvg/32x32/actions/messagebox_critical.png")
 dialogue.image.setPixmap(messageIcon)
 # Make sure we have a suitable size depending on whether or not the view is shown
 dialogue.adjustSize()
 dialogue.exec_()
 
 return False
 
 def confirmChanges(self, summary, changes, demotions, downloadSize,
 actions=None, removal_bold=True):
 """show the changes dialogue"""
 # FIXME: add a whitelist here for packages that we expect to be
 # removed (how to calc this automatically?)
 DistUpgradeView.confirmChanges(self, summary, changes, demotions,
 downloadSize)
 self.changesDialogue = QDialog(self.window_main)
 loadUi("dialog_changes.ui", self.changesDialogue)
 
 self.changesDialogue.treeview_details.hide()
 self.changesDialogue.buttonBox.helpRequested.connect(self.showChangesDialogueDetails)
 self.translate_widget_children(self.changesDialogue)
 self.changesDialogue.buttonBox.button(QDialogButtonBox.Ok).setText(_("&Start Upgrade"))
 self.changesDialogue.buttonBox.button(QDialogButtonBox.Help).setIcon(QIcon())
 self.changesDialogue.buttonBox.button(QDialogButtonBox.Help).setText(_("Details") + " >>>")
 self.changesDialogue.resize(self.changesDialogue.sizeHint())
 
 if os.path.exists("/usr/share/icons/oxygen/48x48/status/dialog-warning.png"):
 warningIcon = QPixmap("/usr/share/icons/oxygen/48x48/status/dialog-warning.png")
 elif os.path.exists("/usr/lib/kde4/share/icons/oxygen/48x48/status/dialog-warning.png"):
 warningIcon = QPixmap("/usr/lib/kde4/share/icons/oxygen/48x48/status/dialog-warning.png")
 else:
 warningIcon = QPixmap("/usr/share/icons/crystalsvg/32x32/actions/messagebox_warning.png")
 
 self.changesDialogue.question_pixmap.setPixmap(warningIcon)
 
 if actions != None:
 cancel = actions[0].replace("_", "")
 self.changesDialogue.buttonBox.button(QDialogButtonBox.Cancel).setText(cancel)
 confirm = actions[1].replace("_", "")
 self.changesDialogue.buttonBox.button(QDialogButtonBox.Ok).setText(confirm)
 
 summaryText = "<big><b>%s</b></big>" % summary
 self.changesDialogue.label_summary.setText(summaryText)
 self.changesDialogue.label_changes.setText(self.confirmChangesMessage)
 # fill in the details
 self.changesDialogue.treeview_details.clear()
 self.changesDialogue.treeview_details.setHeaderLabels(["Packages"])
 self.changesDialogue.treeview_details.header().hide()
 for demoted in self.demotions:
 self.changesDialogue.treeview_details.insertTopLevelItem(0, QTreeWidgetItem(self.changesDialogue.treeview_details, [_("No longer supported %s") % demoted.name]) )
 for rm in self.toRemove:
 self.changesDialogue.treeview_details.insertTopLevelItem(0, QTreeWidgetItem(self.changesDialogue.treeview_details, [_("Remove %s") % rm.name]) )
 for rm in self.toRemoveAuto:
 self.changesDialogue.treeview_details.insertTopLevelItem(0, QTreeWidgetItem(self.changesDialogue.treeview_details, [_("Remove (was auto installed) %s") % rm.name]) )
 for inst in self.toInstall:
 self.changesDialogue.treeview_details.insertTopLevelItem(0, QTreeWidgetItem(self.changesDialogue.treeview_details, [_("Install %s") % inst.name]) )
 for up in self.toUpgrade:
 self.changesDialogue.treeview_details.insertTopLevelItem(0, QTreeWidgetItem(self.changesDialogue.treeview_details, [_("Upgrade %s") % up.name]) )
 
 #FIXME resize label, stop it being shrinkable
 res = self.changesDialogue.exec_()
 if res == QDialog.Accepted:
 return True
 return False
 
 def showChangesDialogueDetails(self):
 if self.changesDialogue.treeview_details.isVisible():
 self.changesDialogue.treeview_details.hide()
 self.changesDialogue.buttonBox.button(QDialogButtonBox.Help).setText(_("Details") + " >>>")
 # Make sure we shrink the dialog otherwise it looks silly
 self.changesDialogue.adjustSize()
 else:
 self.changesDialogue.treeview_details.show()
 self.changesDialogue.buttonBox.button(QDialogButtonBox.Help).setText("<<< " + _("Details"))
 self.changesDialogue.resize(self.changesDialogue.sizeHint())
 
 def askYesNoQuestion(self, summary, msg, default='No'):
 answer = QMessageBox.question(self.window_main, summary, "<font>" + msg, QMessageBox.Yes|QMessageBox.No, QMessageBox.No)
 if answer == QMessageBox.Yes:
 return True
 return False
 
 def confirmRestart(self):
 messageBox = QMessageBox(QMessageBox.Question, _("Restart required"), _("<b><big>Restart the system to complete the upgrade</big></b>"), QMessageBox.NoButton, self.window_main)
 yesButton = messageBox.addButton(QMessageBox.Yes)
 noButton = messageBox.addButton(QMessageBox.No)
 yesButton.setText(_("_Restart Now").replace("_", "&"))
 noButton.setText(gettext.dgettext("kdelibs", "&Close"))
 answer = messageBox.exec_()
 if answer == QMessageBox.Yes:
 return True
 return False
 
 def processEvents(self):
 QApplication.processEvents()
 
 def pulseProgress(self, finished=False):
 # FIXME: currently we do nothing here because this is
 # run in a different python thread and QT explodes if the UI is
 # touched from a non QThread
 pass
 
 def on_window_main_delete_event(self):
 #FIXME make this user friendly
 text = _("""<b><big>Cancel the running upgrade?</big></b>
 
 The system could be in an unusable state if you cancel the upgrade. You are strongly advised to resume the upgrade.""")
 text = text.replace("\n", "<br />")
 cancel = QMessageBox.warning(self.window_main, _("Cancel Upgrade?"), text, QMessageBox.Yes, QMessageBox.No)
 if cancel == QMessageBox.Yes:
 return True
 return False
 
 
 if __name__ == "__main__":
 
 view = DistUpgradeViewKDE()
 view.askYesNoQuestion("input box test","bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar ")
 
 if sys.argv[1] == "--test-term":
 pid = view.terminal_text.fork()
 if pid == 0:
 subprocess.call(["bash"])
 sys.exit()
 while True:
 view.terminal_text.update_interface()
 QApplication.processEvents()
 time.sleep(0.01)
 
 if sys.argv[1] == "--show-in-terminal":
 with open(sys.argv[2]) as f:
 chars = f.read()
 for c in chars:
 view.terminal_text.insertWithTermCodes( c )
 #print(c, ord(c))
 QApplication.processEvents()
 time.sleep(0.05)
 while True:
 QApplication.processEvents()
 
 cache = apt.Cache()
 for pkg in sys.argv[1:]:
 if cache[pkg].is_installed and not cache[pkg].is_upgradable:
 cache[pkg].mark_delete(purge=True)
 else:
 cache[pkg].mark_install()
 cache.commit(view._acquireProgress,view._installProgress)
 
 # keep the window open
 while True:
 QApplication.processEvents()
 
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