def __init__(self, screen_number=0):
selection = "_XSETTINGS_S%i" % screen_number
self._manager = ManagerSelection(selection)
# Technically I suppose ICCCM says we should use FORCE, but it's not
# like a window manager where you have to wait for the old wm to clean
# things up before you can do anything... as soon as the selection is
# gone, the settings are gone. (Also, if we're stealing from
# ourselves, we probably don't clean up the window properly.)
self._manager.acquire(self._manager.FORCE_AND_RETURN)
self._window = self._manager.window()
def __init__(self, replace_other_wm, wm_name, display=None):
gobject.GObject.__init__(self)
if display is None:
display = display_get_default()
self._display = display
self._root = self._display.get_default_screen().get_root_window()
self._wm_name = wm_name
self._ewmh_window = None
self._windows = {}
# EWMH says we have to know the order of our windows oldest to
# youngest...
self._windows_in_order = []
# Become the Official Window Manager of this year's display:
self._wm_selection = ManagerSelection(self._display, "WM_S0")
self._cm_wm_selection = ManagerSelection(self._display,
"_NET_WM_CM_S0")
self._wm_selection.connect("selection-lost", self._lost_wm_selection)
self._cm_wm_selection.connect("selection-lost",
self._lost_wm_selection)
# May throw AlreadyOwned:
if replace_other_wm:
mode = self._wm_selection.FORCE
else:
mode = self._wm_selection.IF_UNOWNED
self._wm_selection.acquire(mode)
self._cm_wm_selection.acquire(mode)
# Set up the necessary EWMH properties on the root window.
self._setup_ewmh_window()
# Start with just one desktop:
self.set_desktop_list((u"Main", ))
self.set_current_desktop(0)
# Start with the full display as workarea:
root_w, root_h = get_default_root_window().get_geometry()[2:4]
self.root_set("_NET_SUPPORTED", ["atom"], NET_SUPPORTED)
self.set_workarea(0, 0, root_w, root_h)
self.set_desktop_geometry(root_w, root_h)
self.root_set("_NET_DESKTOP_VIEWPORT", ["u32"], [0, 0])
self.size_constraints = DEFAULT_SIZE_CONSTRAINTS
# Load up our full-screen widget
self._world_window = None
if not is_gtk3():
self._world_window = WorldWindow(
self._display.get_default_screen())
self.notify("toplevel")
self._world_window.show_all()
# Okay, ready to select for SubstructureRedirect and then load in all
# the existing clients.
add_event_receiver(self._root, self)
add_fallback_receiver("xpra-client-message-event", self)
#when reparenting, the events may get sent
#to a window that is already destroyed
#and we don't want to miss those events, so:
add_fallback_receiver("child-map-request-event", self)
rxid = get_xwindow(self._root)
X11Window.substructureRedirect(rxid)
for w in get_children(self._root):
# Checking for FOREIGN here filters out anything that we've
# created ourselves (like, say, the world window), and checking
# for mapped filters out any withdrawn windows.
xid = get_xwindow(w)
if (w.get_window_type() == GDKWINDOW_FOREIGN
and not X11Window.is_override_redirect(xid)
and X11Window.is_mapped(xid)):
log("Wm managing pre-existing child window %#x", xid)
self._manage_client(w)
# Also watch for focus change events on the root window
X11Window.selectFocusChange(rxid)
X11Keyboard.selectBellNotification(True)
