qubes-installer-qubes-os/anaconda/pyanaconda/ui/tui/hubs/__init__.py
Marek Marczykowski-Górecki f73b3741f0 Update anaconda to 20.25.16
Apply result of "git diff anaconda-18.37.11-1..anaconda-20.25.16-1" and
resolve conflicts.
2014-04-08 05:50:31 +02:00

118 lines
4.5 KiB
Python

# The base classes for Anaconda TUI Hubs
#
# Copyright (C) (2012) Red Hat, Inc.
#
# 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, or (at your option) any later version.
# 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.
#
# Red Hat Author(s): Martin Sivak <msivak@redhat.com>
#
from pyanaconda.ui.tui import simpleline as tui
from pyanaconda.ui.tui.tuiobject import TUIObject
from pyanaconda.ui.tui.spokes import collect_spokes
from pyanaconda.ui import common
from pyanaconda.i18n import _
class TUIHub(TUIObject, common.Hub):
"""Base Hub class implementing the pyanaconda.ui.common.Hub interface.
It uses text based categories to look for relevant Spokes and manages
all the spokes it finds to have the proper category.
:param categories: list all the spoke categories to be displayed in this Hub
:type categories: list of strings
:param title: title for this Hub
:type title: unicode
"""
categories = []
title = _("Default HUB title")
def __init__(self, app, data, storage, payload, instclass):
TUIObject.__init__(self, app, data)
common.Hub.__init__(self, data, storage, payload, instclass)
self._spokes = {} # holds spokes referenced by their class name
self._keys = {} # holds spokes referenced by their user input key
self._spoke_count = 0
def setup(self, environment="anaconda"):
# look for spokes having category present in self.categories
for c in self.categories:
spokes = collect_spokes(self.paths["spokes"], c)
# sort them according to their priority
for s in sorted(spokes, key = lambda s: s.title):
# Check if this spoke is to be shown in anaconda
if not s.should_run(environment, self.data):
continue
spoke = s(self.app, self.data, self.storage, self.payload, self.instclass)
spoke.initialize()
if not spoke.showable:
spoke.teardown()
del spoke
continue
if spoke.indirect:
continue
self._spoke_count += 1
self._keys[self._spoke_count] = spoke
self._spokes[spoke.__class__.__name__] = spoke
# only schedule the hub if it has some spokes
return self._spoke_count != 0
def refresh(self, args = None):
"""This methods fills the self._window list by all the objects
we want shown on this screen. Title and Spokes mostly."""
TUIObject.refresh(self, args)
def _prep(i, w):
number = tui.TextWidget("%2d)" % i)
return tui.ColumnWidget([(3, [number]), (None, [w])], 1)
# split spokes to two columns
left = [_prep(i, w) for i,w in self._keys.iteritems() if i % 2 == 1]
right = [_prep(i, w) for i,w in self._keys.iteritems() if i % 2 == 0]
c = tui.ColumnWidget([(39, left), (39, right)], 2)
self._window.append(c)
return True
def input(self, args, key):
"""Handle user input. Numbers are used to show a spoke, the rest is passed
to the higher level for processing."""
try:
number = int(key)
self.app.switch_screen_with_return(self._keys[number])
return None
except (ValueError, KeyError):
# If we get a continue, check for unfinished spokes. If unfinished
# don't continue
# TRANSLATORS: 'c' to continue
if key == _('c'):
for spoke in self._spokes.values():
if not spoke.completed and spoke.mandatory:
print(_("Please complete all spokes before continuing"))
return False
return key