Current File : //usr/lib/python3/dist-packages/usbcreator/frontends/gtk/frontend.py
# Copyright (C) 2008-2009 Canonical Ltd.
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 3,
# as published by the Free Software Foundation.
#
# 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/>.
import subprocess
import os
import gettext
import logging
import gi
gi.require_version('Gdk', '3.0')
gi.require_version('Gtk', '3.0')
from gi.repository import GObject
from gi.repository import GLib
from gi.repository import Gio
from gi.repository import Gdk
from gi.repository import Pango
from gi.repository import Gtk
from usbcreator.frontends.base import Frontend
from usbcreator.frontends.gtk.unitysupport import UnitySupport
from usbcreator import misc
if 'USBCREATOR_LOCAL' in os.environ:
ui_path = os.path.join(os.getcwd(), 'gui/usbcreator-gtk.ui')
else:
ui_path = '/usr/share/usb-creator/usbcreator-gtk.ui'
Gdk.threads_init()
def thread_wrap(func):
'''Decorator for functions that will be called by another thread.'''
def wrap(*args):
Gdk.threads_enter()
try:
return func(*args)
finally:
Gdk.threads_leave()
return wrap
class GtkFrontend(Frontend):
@classmethod
def startup_failure(cls, message):
dialog = Gtk.MessageDialog(message_type=Gtk.MessageType.ERROR,
buttons=Gtk.ButtonsType.CLOSE, message_format=message)
dialog.run()
dialog.destroy()
@classmethod
def DBusMainLoop(cls):
from dbus.mainloop.glib import DBusGMainLoop
DBusGMainLoop(set_as_default=True)
def __init__(self, backend, img=None, allow_system_internal=False):
self.allow_system_internal = allow_system_internal
self.all_widgets = set()
self.builder = Gtk.Builder()
self.builder.set_translation_domain('usbcreator')
self.builder.add_from_file(ui_path)
# A cache of the icon names and display names for the individual
# devices.
self.icons = {}
self.names = {}
self.pretty_names = {}
for widget in self.builder.get_objects():
# Taken from ubiquity:
# We generally want labels to be selectable so that people can
# easily report problems in them
# (https://launchpad.net/bugs/41618), but GTK+ likes to put
# selectable labels in the focus chain, and I can't seem to turn
# this off in glade and have it stick. Accordingly, make sure
# labels are unfocusable here.
if isinstance(widget, Gtk.Label):
widget.set_property('can-focus', False)
if issubclass(type(widget), Gtk.Widget):
self.all_widgets.add(widget)
widget.set_name(Gtk.Buildable.get_name(widget))
setattr(self, Gtk.Widget.get_name(widget), widget)
Gtk.Window.set_default_icon_name('usb-creator-gtk')
# Connect signals to widgets
self.builder.connect_signals (self)
self.cancelbutton.connect('clicked', lambda x: self.warning_dialog.hide())
self.finished_exit.connect('clicked', lambda x: self.finished_dialog.hide())
self.failed_exit.connect('clicked', lambda x: self.failed_exit.hide())
self.progress_cancel_button.connect('clicked', lambda x: self.warning_dialog.show())
# Set warning dialog transient window
self.warning_dialog.set_transient_for(self.install_window)
def format_value(scale, value):
return misc.format_mb_size(value)
# TODO: remove format button
self.format_dest.hide()
# Connect to backend signals.
self.backend = backend
self.backend.source_added_cb = self.add_source
self.backend.target_added_cb = self.add_target
self.backend.source_removed_cb = self.remove_source
self.backend.target_removed_cb = self.remove_target
self.backend.failure_cb = self.failure
self.backend.success_cb = self.success
self.backend.install_progress_cb = self.progress
self.backend.install_progress_message_cb = self.progress_message
self.backend.install_progress_pulse_cb = self.progress_pulse
self.backend.install_progress_pulse_stop_cb = self.progress_pulse_stop
self.backend.retry_cb = self.retry
self.backend.target_changed_cb = self.update_target
# Pulse state.
self.pulsing = False
# we currently do not have help
self.button_help.hide()
#self.button_help.connect('clicked', lambda x: Gtk.show_uri(self.button_help.get_screen(),
# 'ghelp:usb-creator',
# Gtk.get_current_event_time()))
self.setup_sources_treeview()
self.setup_targets_treeview()
# Pre-populate the source view.
search_dir_ids = []
if img is not None:
self.backend.add_image(img)
self.source_vbox.hide()
else:
search_dir_ids = [GLib.UserDirectory.DIRECTORY_DOWNLOAD,
GLib.UserDirectory.DIRECTORY_DESKTOP]
for search_dir_id in search_dir_ids:
search_dir = GLib.get_user_special_dir(search_dir_id)
if search_dir and os.path.isdir(search_dir):
# TODO evand 2009-10-22: File type detection based on file(1).
for fname in os.listdir(search_dir):
if fname.endswith('.iso') or fname.endswith('.img'):
self.backend.add_image(os.path.join(search_dir, fname))
# Sets first pre-populated image as current in the backend
self.selection_changed_source(self.source_treeview.get_selection())
self.window.show()
selection = self.source_treeview.get_selection()
selection.connect('changed', self.selection_changed_source)
selection = self.dest_treeview.get_selection()
selection.connect('changed', self.selection_changed_target)
self.backend.detect_devices()
# FIXME: instead of passing parent we really should just send signals
self.unity = UnitySupport(parent=self)
self.update_loop = self.add_timeout(2000, self.backend.update_free)
Gdk.threads_enter()
try:
Gtk.main()
except KeyboardInterrupt:
self.quit()
Gdk.threads_leave()
def add_timeout(self, interval, func, *args):
'''Add a new timer for function 'func' with optional arguments. Wraps a
similar gobject call timeout_add.'''
timer = GLib.timeout_add(interval, func, *args)
return timer
def delete_timeout(self, timer):
'''Remove the specified timer. Wraps gobject source_remove call.'''
return GLib.source_remove(timer)
def add_source(self, source):
logging.debug('add_source: %s' % str(source))
_append_to_list_and_select(self.source_treeview, [source],
force_selection=True)
# XXX evand 2009-09-17: Find a label and icon for the device, if we
# don't already have one. This will go away when the code for the
# presentation-name and presentation-icon properties in udisks
# is written.
t = self.backend.sources[source]['type']
l = self.backend.sources[source]['label']
d = self.backend.sources[source]['device']
if not (t == misc.SOURCE_ISO or t == misc.SOURCE_IMG):
name, icon = self.get_gnome_drive(d)
if icon:
self.icons[source] = icon
if not l and name:
self.names[source] = name
def add_target(self, target):
logging.debug('add_target: %s' % str(target))
# use str() here, since it is originally a DBus.ObjectPath object
_append_to_list_and_select(self.dest_treeview, [str(target)],
force_selection=False)
# XXX evand 2009-09-17: Find a label and icon for the device.
v = self.backend.targets[target]['vendor']
m = self.backend.targets[target]['model']
d = self.backend.targets[target]['device']
l = self.backend.targets[target]['label']
name, icon = self.get_gnome_drive(d)
if icon:
self.icons[target] = icon
if not l and name:
self.names[target] = name
self.pretty_names[target] = "%s %s (%s)" % (v, m, misc.text_type(d))
def remove_source(self, source):
model = self.source_treeview.get_model()
iterator = model.get_iter_first()
to_delete = None
while iterator is not None:
if model.get_value(iterator, 0) == source:
to_delete = iterator
iterator = model.iter_next(iterator)
if to_delete is not None:
model.remove(to_delete)
if source in self.names:
self.names.pop(source)
if source in self.icons:
self.icons.pop(source)
sel = self.source_treeview.get_selection()
m, i = sel.get_selected()
def remove_target(self, target):
model = self.dest_treeview.get_model()
iterator = model.get_iter_first()
to_delete = None
while iterator is not None:
if model.get_value(iterator, 0) == target:
to_delete = iterator
iterator = model.iter_next(iterator)
if to_delete is not None:
model.remove(to_delete)
if target in self.names:
self.names.pop(target)
if target in self.icons:
self.icons.pop(target)
if target in self.pretty_names:
self.pretty_names.pop(target)
sel = self.dest_treeview.get_selection()
m, i = sel.get_selected()
def get_source(self):
'''Returns the UDI of the selected source image.'''
sel = self.source_treeview.get_selection()
m, i = sel.get_selected()
if i:
return m[i][0]
else:
logging.debug('No source selected.')
return ''
def get_target(self):
'''Returns the UDI of the selected target disk or partition.'''
sel = self.dest_treeview.get_selection()
m, i = sel.get_selected()
if i:
return m[i][0]
else:
logging.debug('No target selected.')
return ''
def get_gnome_drive(self, dev):
try:
monitor = Gio.VolumeMonitor.get()
for drive in monitor.get_volumes():
if 'unix-device' in drive.enumerate_identifiers():
if drive.get_identifier('unix-device') == dev:
name = drive.get_name()
icon = drive.get_icon().get_names()[0]
return (name, icon)
for drive in monitor.get_connected_drives():
if 'unix-device' in drive.enumerate_identifiers():
if drive.get_identifier('unix-device') == dev:
name = drive.get_name()
icon = drive.get_icon().get_names()[0]
return (name, icon)
except Exception:
logging.exception('Could not determine GNOME drive:')
return ('', '')
def setup_sources_treeview(self):
def column_data_func(layout, cell, model, iterator, column):
if not self.backend:
return
udi = model[iterator][0]
dev = self.backend.sources[udi]
if column == 0:
if udi in self.names:
cell.set_property('text', self.names[udi])
else:
cell.set_property('text', dev['device'])
elif column == 1:
cell.set_property('text', dev['label'])
elif column == 2:
cell.set_property('text', misc.format_size(dev['size']))
def pixbuf_data_func(column, cell, model, iterator, data):
if not self.backend:
return
udi = model[iterator][0]
dev = self.backend.sources[udi]
source_type = dev['type']
if source_type == misc.SOURCE_ISO:
cell.set_property('stock-id', Gtk.STOCK_CDROM)
elif source_type == misc.SOURCE_IMG:
cell.set_property('stock-id', Gtk.STOCK_HARDDISK)
else:
if udi in self.icons:
cell.set_property('icon-name', self.icons[udi])
else:
cell.set_property('stock-id', None)
list_store = Gtk.ListStore(str)
self.source_treeview.set_model(list_store)
cell_name = Gtk.CellRendererText()
cell_name.set_property('ellipsize', Pango.EllipsizeMode.END)
cell_pixbuf = Gtk.CellRendererPixbuf()
column_name = Gtk.TreeViewColumn(_('CD-Drive/Image'))
column_name.set_sizing(Gtk.TreeViewColumnSizing.AUTOSIZE)
column_name.set_resizable(True)
column_name.set_expand(True)
column_name.set_min_width(75)
column_name.pack_start(cell_pixbuf, False)
column_name.pack_start(cell_name, True)
self.source_treeview.append_column(column_name)
column_name.set_cell_data_func(cell_name, column_data_func, 0)
column_name.set_cell_data_func(cell_pixbuf, pixbuf_data_func, None)
cell_version = Gtk.CellRendererText()
cell_version.set_property('ellipsize', Pango.EllipsizeMode.END)
column_name = Gtk.TreeViewColumn(_('OS Version'), cell_version)
column_name.set_cell_data_func(cell_version, column_data_func, 1)
column_name.set_sizing(Gtk.TreeViewColumnSizing.AUTOSIZE)
column_name.set_resizable(True)
column_name.set_expand(True)
column_name.set_min_width(75)
self.source_treeview.append_column(column_name)
cell_size = Gtk.CellRendererText()
cell_size.set_property('ellipsize', Pango.EllipsizeMode.END)
column_name = Gtk.TreeViewColumn(_('Size'), cell_size)
column_name.set_cell_data_func(cell_size, column_data_func, 2)
column_name.set_sizing(Gtk.TreeViewColumnSizing.AUTOSIZE)
column_name.set_resizable(True)
column_name.set_expand(False)
column_name.set_min_width(75)
self.source_treeview.append_column(column_name)
# Drag and drop support.
# FIXME evand 2009-04-28: Anything can be dropped on the source
# treeview. Ideally, the user should only be able to drop ISO and IMG
# files.
def motion_cb(wid, context, x, y, time):
context.drag_status(Gdk.DragAction.COPY, time)
return True
def drop_cb(w, context, x, y, time):
target_list = w.drag_dest_get_target_list()
target = w.drag_dest_find_target(context, target_list)
w.drag_get_data(context, target)
context.finish(True, True)
return True
def data_received_cb(w, context, x, y, selection, target_type, timestamp):
# FIXME evand 2009-04-28: Use the GNOME VFS? Test with a sshfs
# nautilus window.
file = selection.data.strip('\r\n\x00')
if file.startswith('file://'):
file = file[7:]
elif file.startswith('file:'):
file = file[5:]
self.backend.add_image(file)
self.source_treeview.drag_dest_set(Gtk.DestDefaults.ALL,
[Gtk.TargetEntry.new('text/uri-list', 0, 600)], Gdk.DragAction.COPY)
self.source_treeview.connect('drag_motion', motion_cb)
self.source_treeview.connect('drag_drop', drop_cb)
self.source_treeview.connect('drag-data-received', data_received_cb)
def update_target(self, udi):
m = self.dest_treeview.get_model()
iterator = m.get_iter_first()
# Update the warning / error icon in the treeview.
while iterator is not None:
if m.get_value(iterator, 0) == udi:
m.row_changed(m.get_path(iterator), iterator)
break
iterator = m.iter_next(iterator)
target = self.backend.targets[udi]
# Update install button state.
status = target['status']
source = self.backend.get_current_source()
if not source:
self.button_install.set_sensitive(False)
return
if status == misc.CAN_USE:
self.button_install.set_sensitive(True)
else:
self.button_install.set_sensitive(False)
# Update the destination status message.
self.open_dest.hide()
if status == misc.CANNOT_USE:
msg = _('The device is not large enough to hold this image.')
else:
msg = ''
self.dest_status.set_text(msg)
def selection_changed_source(self, selection):
model, iterator = selection.get_selected()
if not iterator:
return
udi = model[iterator][0]
self.backend.set_current_source(udi)
self.selection_changed_target(self.dest_treeview.get_selection())
def selection_changed_target(self, selection):
model, iterator = selection.get_selected()
if not iterator:
return
udi = model[iterator][0]
if udi:
self.update_target(udi)
dev = self.backend.targets[udi]
p = dev['parent']
if p and p in self.backend.targets:
dev = self.backend.targets[p]
def setup_targets_treeview(self):
def column_data_func(layout, cell, model, iterator, column):
if not self.backend:
return
udi = model[iterator][0]
dev = self.backend.targets[udi]
if column == 0:
if udi in self.pretty_names:
cell.set_property('text', self.pretty_names[udi])
else:
cell.set_property('text', dev['device'])
elif column == 1:
if udi in self.names:
cell.set_property('text', self.names[udi])
else:
cell.set_property('text', dev['label'])
elif column == 2:
cell.set_property('text', misc.format_size(dev['capacity']))
def pixbuf_data_func(column, cell, model, iterator, data):
if not self.backend:
return
udi = model[iterator][0]
dev = self.backend.targets[udi]
status = dev['status']
if status == misc.NEED_SPACE:
cell.set_property('stock-id', Gtk.STOCK_DIALOG_WARNING)
elif status == misc.CANNOT_USE:
# TODO evand 2009-05-05: Implement disabled rows as a
# replacement?
cell.set_property('stock-id', Gtk.STOCK_DIALOG_ERROR)
else:
if udi in self.icons:
cell.set_property('icon-name', self.icons[udi])
else:
cell.set_property('stock-id', None)
list_store = Gtk.ListStore(GObject.TYPE_STRING)
list_store.set_sort_column_id(0, Gtk.SortType.ASCENDING)
self.dest_treeview.set_model(list_store)
column_name = Gtk.TreeViewColumn()
column_name.set_title(_('Device'))
cell_name = Gtk.CellRendererText()
cell_name.set_property('ellipsize', Pango.EllipsizeMode.END)
cell_pixbuf = Gtk.CellRendererPixbuf()
column_name.set_sizing(Gtk.TreeViewColumnSizing.AUTOSIZE)
column_name.set_resizable(True)
column_name.set_expand(True)
column_name.set_min_width(75)
column_name.pack_start(cell_pixbuf, False)
column_name.pack_start(cell_name, True)
self.dest_treeview.append_column(column_name)
column_name.set_cell_data_func(cell_name, column_data_func, 0)
column_name.set_cell_data_func(cell_pixbuf, pixbuf_data_func, None)
cell_name = Gtk.CellRendererText()
cell_name.set_property('ellipsize', Pango.EllipsizeMode.END)
column_name = Gtk.TreeViewColumn(_('Label'), cell_name)
column_name.set_cell_data_func(cell_name, column_data_func, 1)
column_name.set_sizing(Gtk.TreeViewColumnSizing.AUTOSIZE)
column_name.set_resizable(True)
column_name.set_expand(True)
column_name.set_min_width(75)
self.dest_treeview.append_column(column_name)
cell_capacity = Gtk.CellRendererText()
cell_capacity.set_property('ellipsize', Pango.EllipsizeMode.END)
column_name = Gtk.TreeViewColumn(_('Capacity'), cell_capacity)
column_name.set_cell_data_func(cell_capacity, column_data_func, 2)
column_name.set_sizing(Gtk.TreeViewColumnSizing.AUTOSIZE)
column_name.set_resizable(True)
column_name.set_expand(False)
column_name.set_min_width(75)
self.dest_treeview.append_column(column_name)
def add_file_source_dialog(self, *args):
filename = ''
chooser = Gtk.FileChooserDialog(title=None, parent=self.window,
action=Gtk.FileChooserAction.OPEN,
buttons=(Gtk.STOCK_CANCEL,
Gtk.ResponseType.CANCEL,
Gtk.STOCK_OPEN,
Gtk.ResponseType.OK))
def _add_filter(p, n):
filter = Gtk.FileFilter()
filter.add_pattern(p)
filter.set_name(n)
chooser.add_filter(filter)
_add_filter('*.iso', _('CD Images'))
_add_filter('*.img', _('Disk Images'))
folder = os.path.expanduser('~')
chooser.set_current_folder(folder)
response = chooser.run()
if response == Gtk.ResponseType.OK:
filename = chooser.get_filename()
chooser.destroy()
treeview = self.source_treeview
model = treeview.get_model()
iterator = model.get_iter_first()
while iterator is not None:
if model.get_value(iterator, 0) == filename:
path = model.get_path(iterator)
treeview.set_cursor(path, None, False)
treeview.scroll_to_cell(path)
return
iterator = model.iter_next(iterator)
self.backend.add_image(filename)
else:
chooser.destroy()
def install(self, widget):
source = self.get_source()
target = self.get_target()
if source and target:
d = Gtk.MessageDialog(transient_for=self.window, modal=True,
message_type=Gtk.MessageType.QUESTION, buttons=Gtk.ButtonsType.YES_NO)
d.set_markup(_('Are you sure you want to write the disc image to the device?'))
d.format_secondary_markup(_('All existing data will be lost.'))
response = d.run()
d.destroy()
if response != Gtk.ResponseType.YES:
return
starting_up = _('Starting up...')
self.progress_title.set_markup('<big><b>' + starting_up + '</b></big>')
self.progress_info.set_text('')
self.install_window.show()
self.window.hide()
self.unity.show_progress()
self.delete_timeout(self.update_loop)
try:
self.backend.install(source, target,
allow_system_internal=self.allow_system_internal)
except:
self._fail()
@thread_wrap
def progress(self, complete):
if self.pulsing:
self.progress_info.set_text('')
return
# Ahem.
if complete > 100:
complete = 100
self.progress_bar.set_fraction(complete / 100.0)
self.unity.set_progress(complete / 100.0)
if complete < 100:
self.progress_info.set_text(_('%d%% complete') % complete)
else:
self.progress_info.set_text(_('Finishing...'))
@thread_wrap
def progress_message(self, message):
self.progress_title.set_markup('<big><b>' + message + '</b></big>')
@thread_wrap
def progress_pulse(self):
def pulse():
self.progress_bar.pulse()
return True
self.pulsing = self.add_timeout(100, pulse)
@thread_wrap
def progress_pulse_stop(self):
if self.pulsing:
self.delete_timeout(self.pulsing)
self.pulsing = False
@thread_wrap
def retry(self, message):
retry_dialog = Gtk.MessageDialog(transient_for=self.window, modal=True, destroy_with_parent=True,
message_type=Gtk.MessageType.ERROR, buttons=Gtk.ButtonsType.YES_NO,
message_format=message)
response = retry_dialog.run()
retry_dialog.destroy()
return response == Gtk.ResponseType.YES
def quit(self, *args):
self.backend.cancel_install()
if Gtk.main_level() > 0:
Gtk.main_quit()
@thread_wrap
def failure(self, message=None):
self._fail(message)
def _fail(self, message=None):
logging.exception('Installation failed.')
# FIXME: evand 2009-07-28: Do we need this?
self.warning_dialog.hide()
self.install_window.hide()
self.unity.show_progress(False)
if not message:
message = _('Installation failed.')
self.failed_dialog.set_transient_for(self.install_window)
self.failed_dialog_label.set_text(message)
self.failed_dialog.run()
Gtk.main_quit()
@thread_wrap
def success(self):
self.warning_dialog.hide()
self.install_window.hide()
self.unity.show_progress(False)
try:
import dbus
bus = dbus.SystemBus()
obj = bus.get_object('com.ubuntu.USBCreator',
'/com/ubuntu/USBCreator')
if obj.KVMOk(dbus_interface='com.ubuntu.USBCreator',
timeout=misc.MAX_DBUS_TIMEOUT):
self.kvm_test.show()
def go(*args):
obj.KVMTest(self.get_target(), os.environ,
dbus_interface='com.ubuntu.USBCreator')
self.kvm_test.connect('clicked', go)
except dbus.DBusException:
logging.exception('Error checking for kvm:')
self.finished_dialog.set_transient_for(self.install_window)
self.finished_dialog.run()
self.backend.shutdown()
Gtk.main_quit()
def notify(self, message):
dialog = Gtk.MessageDialog(transient_for=self.window, modal=True, destroy_with_parent=True,
message_type=Gtk.MessageType.WARNING, buttons=Gtk.ButtonsType.CLOSE,
message_format=message)
dialog.run()
dialog.destroy()
def format_dest_clicked(self, *args):
return
def open_dest_folder(self, *args):
model, iterator = self.dest_treeview.get_selection().get_selected()
if not iterator:
logging.error('Open button pressed but there was no selection.')
return
disk = model[iterator][0]
dir = self.backend.open(disk)
if dir:
subprocess.Popen(['gnome-open', dir])
def _append_to_list_and_select(treeview, new_row, force_selection):
model = treeview.get_model()
new_iter = model.append(new_row)
if force_selection or (treeview.get_selection().get_selected()[1] is None):
treeview.set_cursor(model.get_path(new_iter), None, False)
treeview.scroll_to_cell(model.get_path(new_iter))
# vim: set ai et sts=4 tabstop=4 sw=4:
Mini Shell