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# -*- coding: utf-8 -*-
#
# Copyright © 2008 Red Hat, Inc. All rights reserved.
# Copyright © 2008 Kushal Das <kushal@fedoraproject.org>
# Copyright © 2009 Mandriva. All rights reserved.
#
# This copyrighted material is made available to anyone wishing to use, modify,
# copy, or redistribute it subject to the terms and conditions of the GNU
# General Public License v.2. This program is distributed in the hope that it
# will be useful, but WITHOUT ANY WARRANTY expressed or implied, including the
# implied warranties 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. Any Red Hat trademarks that are
# incorporated in the source code or documentation are not subject to the GNU
# General Public License and may only be used or replicated with the express
# permission of Red Hat, Inc.
#
# Author(s): Luke Macken <lmacken@redhat.com>
# Kushal Das <kushal@fedoraproject.org>
# Aurelien Lefebvre <alefebvre@mandriva.com>
import os
import sys
import logging
from datetime import datetime
from PyQt4 import QtCore, QtGui
from liveusb import LiveUSBCreator, LiveUSBError, LiveUSBInterface, _
try:
import dbus.mainloop.qt
dbus.mainloop.qt.DBusQtMainLoop(set_as_default=True)
except:
pass
class LiveUSBApp(QtGui.QApplication):
""" Main application class """
def __init__(self, opts, args):
QtGui.QApplication.__init__(self, args)
self.mywindow = LiveUSBDialog(opts)
self.mywindow.show()
try:
self.exec_()
finally:
self.mywindow.terminate()
class ProgressThread(QtCore.QThread):
def set_data(self):
self.emit(QtCore.SIGNAL("maxprogress(int)"), 100)
self.emit(QtCore.SIGNAL("progress(int)"), 0)
def run(self):
return
def update(self, value):
# Never update to 100%
if value > 99:
tunned_value = 99
else:
tunned_value = value
self.emit(QtCore.SIGNAL("progress(int)"), tunned_value)
def terminate(self):
self.emit(QtCore.SIGNAL("progress(int)"), 100)
QtCore.QThread.terminate(self)
class LiveUSBThread(QtCore.QThread):
def __init__(self, live, progress, parent=None):
QtCore.QThread.__init__(self, parent)
self.progress = progress
self.parent = parent
self.live = live
def status(self, text):
self.emit(QtCore.SIGNAL("status(PyQt_PyObject)"), text)
def run(self):
handler = LiveUSBLogHandler(self.status)
self.live.log.addHandler(handler)
now = datetime.now()
try:
if not self.live.drive:
raise Exception("No drive selected")
if not self.live.iso:
raise Exception("No ISO selected")
# Setup the progress bar
self.progress.set_data()
self.progress.start()
self.live.build_disk(self.progress)
duration = str(datetime.now() - now).split('.')[0]
self.status(_("Complete! (%s)" % duration))
self.progress.terminate()
except LiveUSBError, e:
self.status(e.message)
except Exception, e:
self.status(_("LiveUSB creation failed!"))
def __del__(self):
self.wait()
class LiveUSBLogHandler(logging.Handler):
def __init__(self, cb):
logging.Handler.__init__(self)
self.cb = cb
def emit(self, record):
if record.levelname in ('INFO', 'ERROR'):
self.cb(record.msg)
class LiveUSBDialog(QtGui.QDialog, LiveUSBInterface):
""" Our main dialog class """
def __init__(self, opts):
self.in_process = False
QtGui.QDialog.__init__(self)
LiveUSBInterface.__init__(self)
self.opts = opts
self.setupUi(self)
self.live = LiveUSBCreator(opts=opts)
self.populate_devices()
self.progress_thread = ProgressThread()
self.live_thread = LiveUSBThread(live=self.live,
progress=self.progress_thread,
parent=self)
self.connect_slots()
self.confirmed = False
# Intercept all liveusb INFO log messages, and display them in the gui
self.handler = LiveUSBLogHandler(lambda x: self.textEdit.append(x))
self.live.log.addHandler(self.handler)
if not self.opts.verbose:
self.live.log.removeHandler(self.live.handler)
def populate_devices(self, *args, **kw):
if self.in_process:
return
self.driveBox.clear()
self.textEdit.clear()
try:
self.live.detect_removable_drives()
for device, info in self.live.drives.items():
driveInfo = info['name']
if info.has_key('model') and info['model']:
driveInfo += " - %s" % info['model']
if info.has_key('capacity') and info['capacity']:
driveInfo += " (%s Mb)" % str(int(info['capacity'])/1000000)
self.driveBox.addItem(driveInfo)
self.check_startbutton_state()
except LiveUSBError, e:
self.textEdit.setPlainText(e.message)
self.check_startbutton_state()
def connect_slots(self):
self.connect(self.isoBttn, QtCore.SIGNAL("clicked()"), self.selectfile)
self.connect(self.startButton, QtCore.SIGNAL("clicked()"), self.begin)
self.connect(self.live_thread, QtCore.SIGNAL("status(PyQt_PyObject)"),
self.status)
self.connect(self.live_thread, QtCore.SIGNAL("finished()"),
lambda: self.enable_widgets(True))
self.connect(self.live_thread, QtCore.SIGNAL("terminated()"),
lambda: self.enable_widgets(True))
self.connect(self.live_thread, QtCore.SIGNAL("progress(int)"),
self.progress)
self.connect(self.live_thread, QtCore.SIGNAL("maxprogress(int)"),
self.maxprogress)
self.connect(self.progress_thread, QtCore.SIGNAL("progress(int)"),
self.progress)
self.connect(self.progress_thread, QtCore.SIGNAL("maxprogress(int)"),
self.maxprogress)
if hasattr(self, 'refreshDevicesButton'):
self.connect(self.refreshDevicesButton, QtCore.SIGNAL("clicked()"),
self.populate_devices)
# If we have access to HAL & DBus, intercept some useful signals
if hasattr(self.live, 'hal'):
self.live.hal.connect_to_signal('DeviceAdded',
self.populate_devices)
self.live.hal.connect_to_signal('DeviceRemoved',
self.populate_devices)
def progress(self, value):
self.progressBar.setValue(value)
def maxprogress(self, value):
self.progressBar.setMaximum(value)
def status(self, text):
if isinstance(text, Exception):
text = text.message
self.textEdit.append(text)
def enable_widgets(self, enabled=True):
if(enabled == False):
self.startButton.setEnabled(enabled)
else:
self.check_startbutton_state()
self.driveBox.setEnabled(enabled)
self.isoBttn.setEnabled(enabled)
if hasattr(self, 'refreshDevicesButton'):
self.refreshDevicesButton.setEnabled(enabled)
self.in_process = not enabled
def get_selected_drive(self):
return str(self.driveBox.currentText()).split()[0]
def begin(self):
""" Begin the liveusb creation process.
This method is called when the "Create LiveUSB" button is clicked.
"""
r = QtGui.QMessageBox.warning(self, _("Warning"), _("All the data on the USB stick are going to be eaten"), QtGui.QMessageBox.Ok | QtGui.QMessageBox.Cancel);
if(r == QtGui.QMessageBox.Cancel):
return;
self.enable_widgets(False)
self.live.drive = self.get_selected_drive()
# Remove the log handler, because our live thread will register its own
self.live.log.removeHandler(self.handler)
self.live_thread.start()
def selectfile(self):
isofile = QtGui.QFileDialog.getOpenFileName(self, _("Select Live ISO"),
"..", "ISO (*.iso)" )
if isofile:
try:
self.live.set_iso(isofile)
except Exception, e:
self.live.log.error(e.message.encode('utf8'))
self.status(_("Unable to encode the filename of your livecd. "
"You may have better luck if you move your ISO "
"to the root of your drive (ie: C:\)"))
if not self.live.is_hybrid(self.live.iso):
self.status(_("The selected iso isn't hybrid"))
self.live.iso = None
else:
self.status("Iso " + _("selected"))
self.check_startbutton_state()
def check_startbutton_state(self):
if self.live.drives != {} and self.live.iso:
self.startButton.setEnabled(True)
else:
self.startButton.setEnabled(False)
def terminate(self):
""" Terminate any processes that we have spawned """
self.live.terminate()
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