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#
# Copyright (C) 2014 Red Hat, Inc.
#
# 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., 51 Franklin Street, Fifth Floor, Boston,
# MA 02110-1301 USA.
#
# pylint: disable=E0611
from gi.repository import Gtk
# pylint: enable=E0611
from virtManager import uiutil
from virtManager.baseclass import vmmGObjectUI
class vmmMediaCombo(vmmGObjectUI):
OPTICAL_FIELDS = 4
(OPTICAL_DEV_PATH,
OPTICAL_LABEL,
OPTICAL_HAS_MEDIA,
OPTICAL_DEV_KEY) = range(OPTICAL_FIELDS)
def __init__(self, conn, builder, topwin, media_type):
vmmGObjectUI.__init__(self, None, None, builder=builder, topwin=topwin)
self.conn = conn
self.media_type = media_type
self.top_box = None
self.combo = None
self._warn_icon = None
self._populated = False
self._init_ui()
def _cleanup(self):
try:
self.conn.disconnect_by_func(self._mediadev_added)
self.conn.disconnect_by_func(self._mediadev_removed)
except:
pass
self.conn = None
self.top_box.destroy()
self.top_box = None
##########################
# Initialization methods #
##########################
def _init_ui(self):
self.top_box = Gtk.Box()
self.top_box.set_spacing(6)
self.top_box.set_orientation(Gtk.Orientation.HORIZONTAL)
self._warn_icon = Gtk.Image()
self._warn_icon.set_from_stock(
Gtk.STOCK_DIALOG_WARNING, Gtk.IconSize.MENU)
self.combo = Gtk.ComboBox()
self.top_box.add(self.combo)
self.top_box.add(self._warn_icon)
self.top_box.show_all()
# [Device path, pretty label, has_media?, device key, media key,
# vmmMediaDevice, is valid device]
fields = []
fields.insert(self.OPTICAL_DEV_PATH, str)
fields.insert(self.OPTICAL_LABEL, str)
fields.insert(self.OPTICAL_HAS_MEDIA, bool)
fields.insert(self.OPTICAL_DEV_KEY, str)
self.combo.set_model(Gtk.ListStore(*fields))
text = Gtk.CellRendererText()
self.combo.pack_start(text, True)
self.combo.add_attribute(text, 'text', self.OPTICAL_LABEL)
error = self.conn.mediadev_error
self._warn_icon.set_visible(bool(error))
self._warn_icon.set_tooltip_text(error)
def _set_mediadev_default(self):
model = self.combo.get_model()
if len(model) != 0:
return
row = [None] * self.OPTICAL_FIELDS
row[self.OPTICAL_DEV_PATH] = None
row[self.OPTICAL_LABEL] = _("No device present")
row[self.OPTICAL_HAS_MEDIA] = False
row[self.OPTICAL_DEV_KEY] = None
model.append(row)
def _set_mediadev_row_from_object(self, row, obj):
row[self.OPTICAL_DEV_PATH] = obj.get_path()
row[self.OPTICAL_LABEL] = obj.pretty_label()
row[self.OPTICAL_HAS_MEDIA] = obj.has_media()
row[self.OPTICAL_DEV_KEY] = obj.get_key()
def _mediadev_set_default_selection(self):
# Set the first active cdrom device as selected, otherwise none
widget = self.combo
model = widget.get_model()
idx = 0
active = widget.get_active()
if active != -1:
# already a selection, don't change it
return
for row in model:
if row[self.OPTICAL_HAS_MEDIA] is True:
widget.set_active(idx)
return
idx += 1
widget.set_active(0)
def _mediadev_media_changed(self, newobj):
widget = self.combo
model = widget.get_model()
active = widget.get_active()
idx = 0
# Search for the row with matching device node and
# fill in info about inserted media. If model has no current
# selection, select the new media.
for row in model:
if row[self.OPTICAL_DEV_PATH] == newobj.get_path():
self._set_mediadev_row_from_object(row, newobj)
has_media = row[self.OPTICAL_HAS_MEDIA]
if has_media and active == -1:
widget.set_active(idx)
elif not has_media and active == idx:
widget.set_active(-1)
idx = idx + 1
self._mediadev_set_default_selection()
def _mediadev_added(self, ignore, newobj):
widget = self.combo
model = widget.get_model()
if newobj.get_media_type() != self.media_type:
return
if model is None:
return
if len(model) == 1 and model[0][self.OPTICAL_DEV_PATH] is None:
# Only entry is the 'No device' entry
model.clear()
newobj.connect("media-added", self._mediadev_media_changed)
newobj.connect("media-removed", self._mediadev_media_changed)
# Brand new device
row = [None] * self.OPTICAL_FIELDS
self._set_mediadev_row_from_object(row, newobj)
model.append(row)
self._mediadev_set_default_selection()
def _mediadev_removed(self, ignore, key):
widget = self.combo
model = widget.get_model()
active = widget.get_active()
idx = 0
for row in model:
if row[self.OPTICAL_DEV_KEY] == key:
# Whole device removed
del(model[idx])
if idx > active and active != -1:
widget.set_active(active - 1)
elif idx == active:
widget.set_active(-1)
idx += 1
self._set_mediadev_default()
self._mediadev_set_default_selection()
def _populate_media(self):
if self._populated:
return
widget = self.combo
model = widget.get_model()
model.clear()
self._set_mediadev_default()
self.conn.connect("mediadev-added", self._mediadev_added)
self.conn.connect("mediadev-removed", self._mediadev_removed)
widget.set_active(-1)
self._mediadev_set_default_selection()
self._populated = True
##############
# Public API #
##############
def reset_state(self):
self._populate_media()
def get_path(self):
return uiutil.get_list_selection(self.combo, self.OPTICAL_DEV_PATH)
def has_media(self):
return uiutil.get_list_selection(self.combo, self.OPTICAL_HAS_MEDIA)
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