qubes-installer-qubes-os/anaconda/pyanaconda/ui/gui/__init__.py
M. Vefa Bicakci 38f3e28d77
anaconda: Update to 23.19.10
Use the output of

  git diff --full-index --binary anaconda-22.20.13-1..anaconda-23.19.10-1

from anaconda's git repository and fix-up merge conflicts.
2016-04-10 00:00:00 -04:00

1049 lines
42 KiB
Python

# Base classes for the graphical user interface.
#
# Copyright (C) 2011-2012 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): Chris Lumens <clumens@redhat.com>
#
import inspect, os, sys, time, site, signal
import meh.ui.gui
from contextlib import contextmanager
import gi
gi.require_version("Gdk", "3.0")
gi.require_version("Gtk", "3.0")
gi.require_version("AnacondaWidgets", "3.0")
gi.require_version("Keybinder", "3.0")
gi.require_version("GdkPixbuf", "2.0")
gi.require_version("GLib", "2.0")
gi.require_version("GObject", "2.0")
from gi.repository import Gdk, Gtk, AnacondaWidgets, Keybinder, GdkPixbuf, GLib, GObject
from pyanaconda.i18n import _, C_
from pyanaconda.constants import IPMI_ABORTED
from pyanaconda import product, iutil, constants
from pyanaconda import threads
from pyanaconda.ui import UserInterface, common
from pyanaconda.ui.gui.utils import gtk_action_wait, gtk_call_once, unbusyCursor
from pyanaconda import ihelp
import os.path
import logging
log = logging.getLogger("anaconda")
__all__ = ["GraphicalUserInterface", "QuitDialog"]
_screenshotIndex = 0
_last_screenshot_timestamp = 0
SCREENSHOT_DELAY = 1 # in seconds
ANACONDA_WINDOW_GROUP = Gtk.WindowGroup()
# Stylesheet priorities to use for product-specific stylesheets.
# installclass stylesheets should be higher than our base stylesheet, and
# stylesheets from updates.img and product.img should be higher than that. All
# levels should be lower than GTK_STYLE_PROVIDER_PRIORITY_USER.
STYLE_PROVIDER_PRIORITY_INSTALLCLASS = Gtk.STYLE_PROVIDER_PRIORITY_APPLICATION + 15
STYLE_PROVIDER_PRIORITY_UPDATES = Gtk.STYLE_PROVIDER_PRIORITY_APPLICATION + 20
assert STYLE_PROVIDER_PRIORITY_UPDATES < Gtk.STYLE_PROVIDER_PRIORITY_USER
class GUIObject(common.UIObject):
"""This is the base class from which all other GUI classes are derived. It
thus contains only attributes and methods that are common to everything
else. It should not be directly instantiated.
Class attributes:
builderObjects -- A list of UI object names that should be extracted from
uiFile and exposed for this class to use. If this list
is empty, all objects will be exposed.
Only the following kinds of objects need to be exported:
(1) Top-level objects (like GtkDialogs) that are directly
used in Python.
(2) Top-level objects that are not directly used in
Python, but are used by another object somewhere down
in the hierarchy. This includes things like a custom
GtkImage used by a button that is part of an exported
dialog, and a GtkListStore that is the model of a
Gtk*View that is part of an exported object.
mainWidgetName -- The name of the top-level widget this object
object implements. This will be the widget searched
for in uiFile by the window property.
focusWidgetName -- The name of the widget to focus when the object is entered,
or None.
uiFile -- The location of an XML file that describes the layout
of widgets shown by this object. UI files are
searched for relative to the same directory as this
object's module.
translationDomain-- The gettext translation domain for the given GUIObject
subclass. By default the "anaconda" translation domain
is used, but external applications, such as Initial Setup,
that use GUI elements (Hubs & Spokes) from Anaconda
can override the translation domain with their own,
so that their subclasses are properly translated.
helpFile -- The location of the yelp-compatible help file for the
given GUI object. The default value of "" indicates
that the object has not specific help file assigned
and the default help file should be used.
"""
builderObjects = []
mainWidgetName = None
# Since many of the builder files do not define top-level widgets, the usual
# {get,can,is,has}_{focus,default} properties don't work real good. Define the
# widget to be focused in python, instead.
focusWidgetName = None
uiFile = ""
helpFile = None
translationDomain = "anaconda"
handles_autostep = False
def __init__(self, data):
"""Create a new UIObject instance, including loading its uiFile and
all UI-related objects.
Instance attributes:
data -- An instance of a pykickstart Handler object. The Hub
never directly uses this instance. Instead, it passes
it down into Spokes when they are created and applied.
The Hub simply stores this instance so it doesn't need
to be passed by the user.
skipTo -- If this attribute is set to something other than None,
it must be the name of a class (as a string). Then,
the interface will skip to the first instance of that
class in the action list instead of going on to
whatever the next action is normally.
Note that actions may only skip ahead, never backwards.
Also, standalone spokes may not skip to an individual
spoke off a hub. They can only skip to the hub
itself.
"""
common.UIObject.__init__(self, data)
if self.__class__ is GUIObject:
raise TypeError("GUIObject is an abstract class")
self.skipTo = None
self.applyOnSkip = False
self.builder = Gtk.Builder()
self.builder.set_translation_domain(self.translationDomain)
self._window = None
if self.builderObjects:
self.builder.add_objects_from_file(self._findUIFile(), self.builderObjects)
else:
self.builder.add_from_file(self._findUIFile())
self.builder.connect_signals(self)
# Keybinder from GI needs to be initialized before use
Keybinder.init()
Keybinder.bind("<Shift>Print", self._handlePrntScreen, [])
self._automaticEntry = False
self._autostepRunning = False
self._autostepDone = False
self._autostepDoneCallback = None
# this indicates if the screen is the last spoke to be processed for a hub
self.lastAutostepSpoke = False
def _findUIFile(self):
path = os.environ.get("UIPATH", "./:/tmp/updates/:/tmp/updates/ui/:/usr/share/anaconda/ui/")
dirs = path.split(":")
# append the directory where this UIObject is defined
dirs.append(os.path.dirname(inspect.getfile(self.__class__)))
for d in dirs:
testPath = os.path.join(d, self.uiFile)
if os.path.isfile(testPath) and os.access(testPath, os.R_OK):
return testPath
raise IOError("Could not load UI file '%s' for object '%s'" % (self.uiFile, self))
def _handlePrntScreen(self, *args, **kwargs):
global _last_screenshot_timestamp
# as a single press of the assigned key generates
# multiple callbacks, we need to skip additional
# callbacks for some time once a screenshot is taken
if (time.time() - _last_screenshot_timestamp) >= SCREENSHOT_DELAY:
self.take_screenshot()
# start counting from the time the screenshot operation is done
_last_screenshot_timestamp = time.time()
def take_screenshot(self, name=None):
"""Take a screenshot of the whole screen (works even with multiple displays)
:param name: optional name for the screenshot that will be appended to the filename,
after the standard prefix & screenshot number
:type name: str or NoneType
"""
global _screenshotIndex
# Make sure the screenshot directory exists.
iutil.mkdirChain(constants.SCREENSHOTS_DIRECTORY)
if name is None:
screenshot_filename = "screenshot-%04d.png" % _screenshotIndex
else:
screenshot_filename = "screenshot-%04d-%s.png" % (_screenshotIndex, name)
fn = os.path.join(constants.SCREENSHOTS_DIRECTORY, screenshot_filename)
root_window = self.main_window.get_window()
pixbuf = Gdk.pixbuf_get_from_window(root_window, 0, 0,
root_window.get_width(),
root_window.get_height())
pixbuf.savev(fn, 'png', [], [])
log.info("%s taken", screenshot_filename)
_screenshotIndex += 1
@property
def automaticEntry(self):
"""Report if the given GUIObject has been displayed under automatic control
This is needed for example for installations with an incomplete kickstart,
as we need to differentiate the automatic screenshot pass from the user
entering a spoke to manually configure things. We also need to skip applying
changes if the spoke is entered automatically.
"""
return self._automaticEntry
@automaticEntry.setter
def automaticEntry(self, value):
self._automaticEntry = value
@property
def autostepRunning(self):
"""Report if the GUIObject is currently running autostep"""
return self._autostepRunning
@autostepRunning.setter
def autostepRunning(self, value):
self._autostepRunning = value
@property
def autostepDone(self):
"""Report if autostep for this GUIObject has been finished"""
return self._autostepDone
@autostepDone.setter
def autostepDone(self, value):
self._autostepDone = value
@property
def autostepDoneCallback(self):
"""A callback to be run once autostep has been finished"""
return self._autostepDoneCallback
@autostepDoneCallback.setter
def autostepDoneCallback(self, callback):
self._autostepDoneCallback = callback
def autostep(self):
"""Autostep through this graphical object and through
any graphical objects managed by it (such as through spokes for a hub)
"""
# report that autostep is running to prevent another from starting
self.autostepRunning = True
# take a screenshot of the current graphical object
if self.data.autostep.autoscreenshot:
# as autostep is triggered just before leaving a screen,
# we can safely take a screenshot of the "parent" object at once
# without using idle_add
self.take_screenshot(self.__class__.__name__)
self._doAutostep()
# done
self.autostepRunning = False
self.autostepDone = True
self._doPostAutostep()
# run the autostep-done callback (if any)
# pylint: disable=not-callable
if self.autostepDoneCallback:
self.autostepDoneCallback(self)
def _doPostAutostep(self):
"""To be overridden by the given GUIObject sub-class with custom code
that brings the GUI from the autostepping mode back to the normal mode.
This usually means to "click" the continue button or its equivalent.
"""
pass
def _doAutostep(self):
"""To be overridden by the given GUIObject sub-class with customized
autostepping code - if needed
(this is for example used to step through spokes in a hub)
"""
pass
@property
def window(self):
"""Return the object out of the GtkBuilder representation
previously loaded by the load method.
"""
# This will raise an AttributeError if the subclass failed to set a
# mainWidgetName attribute, which is exactly what I want.
if not self._window:
self._window = self.builder.get_object(self.mainWidgetName)
return self._window
@property
def main_window(self):
"""Return the top-level window containing this GUIObject."""
return self.window.get_toplevel()
def clear_info(self):
"""Clear any info bar from the bottom of the screen."""
self.window.clear_info()
def set_error(self, msg):
"""Display an info bar along the bottom of the screen with the provided
message. This method is used to display critical errors anaconda
may not be able to do anything about, but that the user may. A
suitable background color and icon will be displayed.
"""
self.window.set_error(msg)
def set_info(self, msg):
"""Display an info bar along the bottom of the screen with the provided
message. This method is used to display informational text -
non-critical warnings during partitioning, for instance. The user
should investigate these messages but doesn't have to. A suitable
background color and icon will be displayed.
"""
self.window.set_info(msg)
def set_warning(self, msg):
"""Display an info bar along the bottom of the screen with the provided
message. This method is used to display errors the user needs to
attend to in order to continue installation. This is the bulk of
messages. A suitable background color and icon will be displayed.
"""
self.window.set_warning(msg)
class QuitDialog(GUIObject):
builderObjects = ["quitDialog"]
mainWidgetName = "quitDialog"
uiFile = "main.glade"
MESSAGE = ""
def run(self):
if self.MESSAGE:
self.builder.get_object("quit_message").set_label(_(self.MESSAGE))
rc = self.window.run()
return rc
class ErrorDialog(GUIObject):
builderObjects = ["errorDialog", "errorTextBuffer"]
mainWidgetName = "errorDialog"
uiFile = "main.glade"
# pylint: disable=arguments-differ
def refresh(self, msg):
buf = self.builder.get_object("errorTextBuffer")
buf.set_text(msg, -1)
def run(self):
rc = self.window.run()
return rc
class MainWindow(Gtk.Window):
"""This is a top-level, full size window containing the Anaconda screens."""
def __init__(self, fullscreen):
"""Create a new anaconda main window.
:param bool fullscreen: if True, fullscreen the window, if false maximize
"""
Gtk.Window.__init__(self)
# Hide the titlebar when maximized if the window manager allows it.
# This makes anaconda look full-screenish but without covering parts
# needed to interact with the window manager, like the GNOME top bar.
self.set_hide_titlebar_when_maximized(True)
# The Anaconda and Initial Setup windows might sometimes get decorated with
# a titlebar which contains the __init__.py header text by default.
# As all Anaconda and Initial Setup usually have a very distinct title text
# inside the window, the titlebar text is redundant and should be disabled.
self.set_title("")
# Treat an attempt to close the window the same as hitting quit
self.connect("delete-event", self._on_delete_event)
# Create a black, 50% opacity pixel that will be scaled to fit the lightbox overlay
# The confusing list of unnamed parameters is:
# bytes, colorspace (there is no other colorspace), has-alpha,
# bits-per-sample (has to be 8), width, height,
# rowstride (bytes between row starts, but we only have one row)
self._transparent_base = GdkPixbuf.Pixbuf.new_from_bytes(GLib.Bytes.new([0, 0, 0, 127]),
GdkPixbuf.Colorspace.RGB, True, 8, 1, 1, 1)
# Contain everything in an overlay so the window can be overlayed with the transparency
# for the lightbox effect
self._overlay = Gtk.Overlay()
self._overlay_img = None
self._overlay.connect("get-child-position", self._on_overlay_get_child_position)
self._overlay_depth = 0
# Create a stack and a list of what's been added to the stack
# Double the stack transition duration since the default 200ms is too
# quick to get the point across
self._stack = Gtk.Stack(transition_duration=400)
self._stack_contents = set()
# Create an accel group for the F12 accelerators added after window transitions
self._accel_group = Gtk.AccelGroup()
self.add_accel_group(self._accel_group)
# Make the window big
if fullscreen:
self.fullscreen()
else:
self.maximize()
self._overlay.add(self._stack)
self.add(self._overlay)
self.show_all()
self._current_action = None
# Help button mnemonics handling
self._mnemonic_signal = None
# we have a sensible initial value, just in case
self._saved_help_button_label = _("Help!")
def _on_delete_event(self, widget, event, user_data=None):
# Use the quit-clicked signal on the the current standalone, even if the
# standalone is not currently displayed.
if self.current_action:
self.current_action.window.emit("quit-clicked")
# Stop the window from being closed here
return True
def _on_overlay_get_child_position(self, overlay_container, overlayed_widget, allocation, user_data=None):
overlay_allocation = overlay_container.get_allocation()
# Scale the overlayed image's pixbuf to the size of the GtkOverlay
overlayed_widget.set_from_pixbuf(self._transparent_base.scale_simple(
overlay_allocation.width, overlay_allocation.height, GdkPixbuf.InterpType.NEAREST))
# Return False to indicate that the child allocation is not yet set
return False
def _on_mnemonics_visible_changed(self, window, property_type, obj):
# mnemonics display has been activated or deactivated,
# add or remove the F1 mnemonics display from the help button
help_button = obj.window.get_help_button()
if window.props.mnemonics_visible:
# save current label
old_label = help_button.get_label()
self._saved_help_button_label = old_label
# add the (F1) "mnemonics" to the help button
help_button.set_label("%s (F1)" % old_label)
else:
# restore the old label
help_button.set_label(self._saved_help_button_label)
@property
def current_action(self):
return self._current_action
def _setVisibleChild(self, child):
# Remove the F12 accelerator from the old window
old_screen = self._stack.get_visible_child()
if old_screen:
old_screen.remove_accelerator(self._accel_group, Gdk.KEY_F12, 0)
old_screen.remove_accelerator(self._accel_group, Gdk.KEY_F1, 0)
old_screen.remove_accelerator(self._accel_group, Gdk.KEY_F1, Gdk.ModifierType.MOD1_MASK)
# Check if the widget is already on the stack
if child not in self._stack_contents:
self._stack.add(child.window)
self._stack_contents.add(child)
child.window.show_all()
# It would be handy for F12 to continue to work like it did in the old
# UI, by skipping you to the next screen or sending you back to the hub
if isinstance(child.window, AnacondaWidgets.BaseStandalone):
child.window.add_accelerator("continue-clicked", self._accel_group,
Gdk.KEY_F12, 0, 0)
elif isinstance(child.window, AnacondaWidgets.SpokeWindow):
child.window.add_accelerator("button-clicked", self._accel_group,
Gdk.KEY_F12, 0, 0)
# Configure the help button
child.window.add_accelerator("help-button-clicked", self._accel_group,
Gdk.KEY_F1, 0, 0)
child.window.add_accelerator("help-button-clicked", self._accel_group,
Gdk.KEY_F1, Gdk.ModifierType.MOD1_MASK, 0)
# Connect to mnemonics-visible to add the (F1) mnemonic to the button label
if self._mnemonic_signal:
self.disconnect(self._mnemonic_signal)
self._mnemonic_signal = self.connect("notify::mnemonics-visible", self._on_mnemonics_visible_changed, child)
self._stack.set_visible_child(child.window)
if child.focusWidgetName:
child.builder.get_object(child.focusWidgetName).grab_focus()
def setCurrentAction(self, standalone):
"""Set the current standalone widget.
This changes the currently displayed screen and, if the standalone
is a hub, sets the hub as the screen to which spokes will return.
:param AnacondaWidgets.BaseStandalone standalone: the new standalone action
"""
# Slide the old hub/standalone off of the new one
self._stack.set_transition_type(Gtk.StackTransitionType.UNDER_LEFT)
self._current_action = standalone
self._setVisibleChild(standalone)
def enterSpoke(self, spoke):
"""Enter a spoke.
The spoke will be displayed as the current screen, but the current-action
to which the spoke will return will not be changed.
:param AnacondaWidgets.SpokeWindow spoke: a spoke to enter
"""
# Slide up, as if the spoke is under the hub
self._stack.set_transition_type(Gtk.StackTransitionType.UNDER_UP)
self._setVisibleChild(spoke)
# autostep through the spoke if required
if spoke.automaticEntry:
# we need to use idle_add here to give GTK time to render the spoke
gtk_call_once(self._autostep_spoke, spoke)
def _autostep_spoke(self, spoke):
"""Step through a spoke and make a screenshot if required.
If this is the last spoke to be autostepped on a hub return to
the hub so that we can proceed to the next one.
"""
# it might be possible that autostep is specified, but autoscreenshot isn't
if spoke.data.autostep.autoscreenshot:
spoke.take_screenshot(spoke.__class__.__name__)
if spoke.autostepDoneCallback:
spoke.autostepDoneCallback(spoke)
# if this is the last spoke then return to hub
if spoke.lastAutostepSpoke:
self.returnToHub()
def returnToHub(self):
"""Exit a spoke and return to a hub."""
# Slide back down over the spoke
self._stack.set_transition_type(Gtk.StackTransitionType.OVER_DOWN)
self._setVisibleChild(self._current_action)
def lightbox_on(self):
self._overlay_depth += 1
if not self._overlay_img:
# Add an overlay image that will be filled and scaled in get-child-position
self._overlay_img = Gtk.Image()
self._overlay_img.show_all()
self._overlay.add_overlay(self._overlay_img)
def lightbox_off(self):
self._overlay_depth -= 1
if self._overlay_depth == 0 and self._overlay_img:
# Remove the overlay image
self._overlay_img.destroy()
self._overlay_img = None
@contextmanager
def enlightbox(self, dialog):
"""Display a dialog in a lightbox over the main window.
:param GtkDialog: the dialog to display
"""
self.lightbox_on()
# Set the dialog as transient for ourself
ANACONDA_WINDOW_GROUP.add_window(dialog)
dialog.set_position(Gtk.WindowPosition.CENTER_ALWAYS)
dialog.set_transient_for(self)
yield
self.lightbox_off()
class GraphicalUserInterface(UserInterface):
"""This is the standard GTK+ interface we try to steer everything to using.
It is suitable for use both directly and via VNC.
"""
def __init__(self, storage, payload, instclass,
distributionText=product.distributionText, isFinal=product.isFinal,
quitDialog=QuitDialog, gui_lock=None, fullscreen=False):
UserInterface.__init__(self, storage, payload, instclass)
self._actions = []
self._currentAction = None
self._ui = None
self._gui_lock = gui_lock
self.data = None
self.mainWindow = MainWindow(fullscreen=fullscreen)
self._distributionText = distributionText
self._isFinal = isFinal
self._quitDialog = quitDialog
self._mehInterface = GraphicalExceptionHandlingIface(
self.mainWindow.lightbox_on)
ANACONDA_WINDOW_GROUP.add_window(self.mainWindow)
basemask = "pyanaconda.ui"
basepath = os.path.dirname(__file__)
updatepath = "/tmp/updates/pyanaconda/ui"
sitepackages = [os.path.join(dir, "pyanaconda", "ui")
for dir in site.getsitepackages()]
pathlist = set([updatepath, basepath] + sitepackages)
_categories = []
_spokes = []
_hubs = []
# as list comprehension can't reference class level variables in Python 3 we
# need to use a for cycle (http://bugs.python.org/issue21161)
for path in pathlist:
_categories.append((basemask + ".categories.%s", os.path.join(path, "categories")))
_spokes.append((basemask + ".gui.spokes.%s", os.path.join(path, "gui/spokes")))
_hubs.append((basemask + ".gui.hubs.%s", os.path.join(path, "gui/hubs")))
paths = UserInterface.paths + {
"categories": _categories,
"spokes": _spokes,
"hubs": _hubs,
}
def _widgetScale(self):
# First, check if the GDK_SCALE environment variable is already set. If so,
# leave it alone.
if "GDK_SCALE" in os.environ:
log.debug("GDK_SCALE already set to %s, not scaling", os.environ["GDK_SCALE"])
return
# Next, check if a scaling factor is already being applied via XSETTINGS,
# such as by gnome-settings-daemon
display = Gdk.Display.get_default()
screen = display.get_default_screen()
val = GObject.Value()
val.init(GObject.TYPE_INT)
if screen.get_setting("gdk-window-scaling-factor", val):
log.debug("Window scale set to %s by XSETTINGS, not scaling", val.get_int())
return
# Get the primary monitor dimensions in pixels and mm from Gdk
primary = screen.get_primary_monitor()
monitor_geometry = screen.get_monitor_geometry(primary)
monitor_scale = screen.get_monitor_scale_factor(primary)
monitor_width_mm = screen.get_monitor_width_mm(primary)
monitor_height_mm = screen.get_monitor_height_mm(primary)
# Sometimes gdk returns 0 for physical widths and heights
if monitor_height_mm == 0 or monitor_width_mm == 0:
return
# Check if this monitor is high DPI, using heuristics from gnome-settings-dpi.
# If the monitor has a height >= 1200 pixels and a resolution > 192 dpi in both
# x and y directions, apply a scaling factor of 2 so that anaconda isn't all tiny
monitor_width_px = monitor_geometry.width * monitor_scale
monitor_height_px = monitor_geometry.height * monitor_scale
monitor_dpi_x = monitor_width_px / (monitor_width_mm / 25.4)
monitor_dpi_y = monitor_height_px / (monitor_height_mm / 25.4)
log.debug("Detected primary monitor: %dx%d %ddpix %ddpiy", monitor_width_px,
monitor_height_px, monitor_dpi_x, monitor_dpi_y)
if monitor_height_px >= 1200 and monitor_dpi_x > 192 and monitor_dpi_y > 192:
display.set_window_scale(2)
# Export the scale so that Gtk programs launched by anaconda are also scaled
iutil.setenv("GDK_SCALE", "2")
def _convertSignals(self):
# What tends to happen when we receive a signal is that the signal will
# be received by the python interpreter's C handler, python will do
# what it needs to do to set the python handler we registered to run,
# the C handler returns, and then nothing happens because Gtk is
# holding the global interpreter lock. The signal then gets delivered
# to our python code when you move the mouse or something. We can get
# around this by doing signals the GLib way. The conversion assumes
# that none of our signal handlers care about the frame parameter,
# which is generally true.
#
# After the unix_signal_add call, signal.getsignal will tell a half
# truth: the method returned will still be called, by way of
# _signal_converter, but GLib will have replaced the actual signal
# handler for that signal.
# Convert everything except SIGCHLD, because that's a different can of worms
def _signal_converter(user_data):
(handler, signum) = user_data
handler(signum, None)
for signum in (s for s in range(1, signal.NSIG) if s != signal.SIGCHLD):
handler = signal.getsignal(signum)
if handler and handler not in (signal.SIG_DFL, signal.SIG_IGN):
# NB: if you are looking at the glib documentation you are in for
# some surprises because gobject-introspection is a minefield.
# g_unix_signal_add_full comes out as GLib.unix_signal_add, and
# g_unix_signal_add doesn't come out at all.
GLib.unix_signal_add(GLib.PRIORITY_DEFAULT, signum,
_signal_converter, (handler, signum))
@property
def tty_num(self):
return 6
@property
def meh_interface(self):
return self._mehInterface
def _list_hubs(self):
"""Return a list of Hub classes to be imported to this interface"""
from pyanaconda.ui.gui.hubs.summary import SummaryHub
from pyanaconda.ui.gui.hubs.progress import ProgressHub
return [SummaryHub, ProgressHub]
def _is_standalone(self, obj):
"""Is the spoke passed as obj standalone?"""
from pyanaconda.ui.gui.spokes import StandaloneSpoke
return isinstance(obj, StandaloneSpoke)
def setup(self, data):
self._actions = self.getActionClasses(self._list_hubs())
self.data = data
def getActionClasses(self, hubs):
"""Grab all relevant standalone spokes, add them to the passed
list of hubs and order the list according to the
relationships between hubs and standalones."""
from pyanaconda.ui.gui.spokes import StandaloneSpoke
# First, grab a list of all the standalone spokes.
standalones = self._collectActionClasses(self.paths["spokes"], StandaloneSpoke)
# Second, order them according to their relationship
return self._orderActionClasses(standalones, hubs)
def _instantiateAction(self, actionClass):
# Instantiate an action on-demand, passing the arguments defining our
# spoke API and setting up continue/quit signal handlers.
obj = actionClass(self.data, self.storage, self.payload, self.instclass)
# set spoke search paths in Hubs
if hasattr(obj, "set_path"):
obj.set_path("spokes", self.paths["spokes"])
obj.set_path("categories", self.paths["categories"])
# If we are doing a kickstart install, some standalone spokes
# could already be filled out. In that case, we do not want
# to display them.
if self._is_standalone(obj) and obj.completed:
del(obj)
return None
# Use connect_after so classes can add actions before we change screens
obj.window.connect_after("continue-clicked", self._on_continue_clicked)
obj.window.connect_after("help-button-clicked", self._on_help_clicked, obj)
obj.window.connect_after("quit-clicked", self._on_quit_clicked)
return obj
def run(self):
(success, args) = Gtk.init_check(None)
if not success:
raise RuntimeError("Failed to initialize Gtk")
# Check if the GUI lock has already been taken
if self._gui_lock and not self._gui_lock.acquire(False):
# Gtk main loop running. That means python-meh caught exception
# and runs its main loop. Do not crash Gtk by running another one
# from a different thread and just wait until python-meh is
# finished, then quit.
unbusyCursor()
log.error("Unhandled exception caught, waiting for python-meh to "\
"exit")
threads.threadMgr.wait_for_error_threads()
sys.exit(1)
try:
# Apply a widget-scale to hidpi monitors
self._widgetScale()
while not self._currentAction:
self._currentAction = self._instantiateAction(self._actions[0])
if not self._currentAction:
self._actions.pop(0)
if not self._actions:
return
self._currentAction.initialize()
self._currentAction.entry_logger()
self._currentAction.refresh()
self._currentAction.window.set_beta(not self._isFinal)
self._currentAction.window.set_property("distribution", self._distributionText().upper())
# Set some program-wide settings.
settings = Gtk.Settings.get_default()
settings.set_property("gtk-font-name", "Cantarell")
settings.set_property("gtk-icon-theme-name", "gnome")
# Apply the application stylesheet
provider = Gtk.CssProvider()
provider.load_from_path("/usr/share/anaconda/anaconda-gtk.css")
Gtk.StyleContext.add_provider_for_screen(Gdk.Screen.get_default(), provider,
Gtk.STYLE_PROVIDER_PRIORITY_APPLICATION)
# Apply the installclass stylesheet
if self.instclass.stylesheet:
provider = Gtk.CssProvider()
provider.load_from_path(self.instclass.stylesheet)
Gtk.StyleContext.add_provider_for_screen(Gdk.Screen.get_default(), provider,
STYLE_PROVIDER_PRIORITY_INSTALLCLASS)
# Look for updates to the stylesheet and apply them at a higher priority
for updates_dir in ("updates", "product"):
updates_css = "/run/install/%s/anaconda-gtk.css" % updates_dir
if os.path.exists(updates_css):
provider = Gtk.CssProvider()
provider.load_from_path(updates_css)
Gtk.StyleContext.add_provider_for_screen(Gdk.Screen.get_default(), provider,
STYLE_PROVIDER_PRIORITY_UPDATES)
self.mainWindow.setCurrentAction(self._currentAction)
# Do this at the last possible minute.
unbusyCursor()
# If anything went wrong before we start the Gtk main loop, release
# the gui lock and re-raise the exception so that meh can take over
except Exception:
self._gui_lock.release()
raise
Gtk.main()
###
### MESSAGE HANDLING METHODS
###
@gtk_action_wait
def showError(self, message):
dlg = ErrorDialog(None)
with self.mainWindow.enlightbox(dlg.window):
dlg.refresh(message)
dlg.run()
dlg.window.destroy()
# the dialog has the only button -- "Exit installer", so just do so
sys.exit(1)
@gtk_action_wait
def showDetailedError(self, message, details, buttons=None):
from pyanaconda.ui.gui.spokes.lib.detailederror import DetailedErrorDialog
buttons = buttons or [C_("GUI|Detailed Error Dialog", "_Quit")]
dlg = DetailedErrorDialog(None, buttons=buttons, label=message)
with self.mainWindow.enlightbox(dlg.window):
dlg.refresh(details)
rc = dlg.run()
dlg.window.destroy()
return rc
@gtk_action_wait
def showYesNoQuestion(self, message):
dlg = Gtk.MessageDialog(flags=Gtk.DialogFlags.MODAL,
message_type=Gtk.MessageType.QUESTION,
buttons=Gtk.ButtonsType.NONE,
message_format=message)
dlg.set_decorated(False)
dlg.add_buttons(C_("GUI|Yes No Dialog", "_No"), 0,
C_("GUI|Yes No Dialog", "_Yes"), 1)
dlg.set_default_response(1)
with self.mainWindow.enlightbox(dlg):
rc = dlg.run()
dlg.destroy()
return bool(rc)
###
### SIGNAL HANDLING METHODS
###
def _on_continue_clicked(self, win, user_data=None):
# Autostep needs to be triggered just before switching to the next screen
# (or before quiting the installation if there are no more screens) to be consistent
# in both fully automatic kickstart installation and for installation with an incomplete
# kickstart. Therefore we basically "hook" the continue-clicked signal, start autostepping
# and ignore any other continue-clicked signals until autostep is done.
# Once autostep finishes, it emits the appropriate continue-clicked signal itself,
# switching to the next screen (if any).
if self.data.autostep.seen and self._currentAction.handles_autostep:
if self._currentAction.autostepRunning:
log.debug("ignoring the continue-clicked signal - autostep is running")
return
elif not self._currentAction.autostepDone:
self._currentAction.autostep()
return
if not win.get_may_continue() or win != self._currentAction.window:
return
# The continue button may still be clickable between this handler finishing
# and the next window being displayed, so turn the button off.
win.set_may_continue(False)
# If we're on the last screen, clicking Continue quits.
if len(self._actions) == 1:
# save the screenshots to the installed system before killing Anaconda
# (the kickstart post scripts run to early, so we need to copy the screenshots now)
iutil.save_screenshots()
Gtk.main_quit()
return
nextAction = None
ndx = 0
# If the current action wants us to jump to an arbitrary point ahead,
# look for where that is now.
if self._currentAction.skipTo:
found = False
for ndx in range(1, len(self._actions)):
if self._actions[ndx].__class__.__name__ == self._currentAction.skipTo:
found = True
break
# If we found the point in question, compose a new actions list
# consisting of the current action, the one to jump to, and all
# the ones after. That means the rest of the code below doesn't
# have to change.
if found:
self._actions = [self._actions[0]] + self._actions[ndx:]
# _instantiateAction returns None for actions that should not be
# displayed (because they're already completed, for instance) so skip
# them here.
while not nextAction:
nextAction = self._instantiateAction(self._actions[1])
if not nextAction:
self._actions.pop(1)
if not self._actions:
sys.exit(0)
return
nextAction.initialize()
nextAction.window.set_beta(self._currentAction.window.get_beta())
nextAction.window.set_property("distribution", self._distributionText().upper())
if not nextAction.showable:
self._currentAction.window.hide()
self._actions.pop(0)
self._on_continue_clicked(nextAction)
return
self._currentAction.exit_logger()
nextAction.entry_logger()
nextAction.refresh()
# Do this last. Setting up curAction could take a while, and we want
# to leave something on the screen while we work.
self.mainWindow.setCurrentAction(nextAction)
self._currentAction = nextAction
self._actions.pop(0)
def _on_help_clicked(self, window, obj):
# the help button has been clicked, start the yelp viewer with
# content for the current screen
ihelp.start_yelp(ihelp.get_help_path(obj.helpFile, self.instclass))
def _on_quit_clicked(self, win, userData=None):
if not win.get_quit_button():
return
dialog = self._quitDialog(None)
with self.mainWindow.enlightbox(dialog.window):
rc = dialog.run()
dialog.window.destroy()
if rc == 1:
self._currentAction.exit_logger()
iutil.ipmi_report(IPMI_ABORTED)
sys.exit(0)
class GraphicalExceptionHandlingIface(meh.ui.gui.GraphicalIntf):
"""
Class inheriting from python-meh's GraphicalIntf and overriding methods
that need some modification in Anaconda.
"""
def __init__(self, lightbox_func):
"""
:param lightbox_func: a function that creates lightbox for a given
window
:type lightbox_func: None -> None
"""
meh.ui.gui.GraphicalIntf.__init__(self)
self._lightbox_func = lightbox_func
def mainExceptionWindow(self, text, exn_file, *args, **kwargs):
meh_intf = meh.ui.gui.GraphicalIntf()
exc_window = meh_intf.mainExceptionWindow(text, exn_file)
exc_window.main_window.set_decorated(False)
self._lightbox_func()
ANACONDA_WINDOW_GROUP.add_window(exc_window.main_window)
# the busy cursor may be set
unbusyCursor()
return exc_window