def acquire(self, when):
old_owner = self._owner()
if when is self.IF_UNOWNED and old_owner != const["XNone"]:
raise AlreadyOwned
self.clipboard.set_with_data([("VERSION", 0, 0)],
self._get,
self._clear,
None)
# Having acquired the selection, we have to announce our existence
# (ICCCM 2.8, still). The details here probably don't matter too
# much; I've never heard of an app that cares about these messages,
# and metacity actually gets the format wrong in several ways (no
# MANAGER or owner_window atoms). But might as well get it as right
# as possible.
# To announce our existence, we need:
# -- the timestamp we arrived at
# -- the manager selection atom
# -- the window that registered the selection
# Of course, because Gtk is doing so much magic for us, we have to do
# some weird tricks to get at these.
# Ask ourselves when we acquired the selection:
ts_data = self.clipboard.wait_for_contents("TIMESTAMP").data
ts_num = unpack("@i", ts_data[:4])[0]
# Calculate the X atom for this selection:
selection_xatom = get_xatom(self.atom)
# Ask X what window we used:
self._xwindow = myGetSelectionOwner(self.clipboard, self.atom)
root = self.clipboard.get_display().get_default_screen().get_root_window()
sendClientMessage(root, root, False, const["StructureNotifyMask"],
"MANAGER",
ts_num, selection_xatom, self._xwindow, 0, 0)
if old_owner != const["XNone"] and when is self.FORCE:
# Block in a recursive mainloop until the previous owner has
# cleared out.
def getwin():
window = get_pywindow(self.clipboard, old_owner)
window.set_events(window.get_events() | gtk.gdk.STRUCTURE_MASK)
return window
try:
window = trap.call_synced(getwin)
log("got window")
except XError:
log("Previous owner is already gone, not blocking")
else:
log("Waiting for previous owner to exit...")
add_event_receiver(window, self)
gtk.main()
log("...they did.")
window = get_pywindow(self.clipboard, self._xwindow)
window.set_title("Xpra-ManagerSelection")
def test_select_clientmessage_and_xselectinput(self):
self.evs = []
self.w = self.window()
gtk.gdk.flush()
l.add_event_receiver(self.w, self)
l.add_event_receiver(self.root(), self)
data = (0x01020304, 0x05060708, 0x090a0b0c, 0x0d0e0f10, 0x11121314)
l.sendClientMessage(self.root(), False, 0, "NOMASK", *data)
l.sendClientMessage(self.w, False, 0, "NOMASK", *data)
gtk.main()
# Should have gotten message to w, not to root
assert len(self.evs) == 1
ev = self.evs[0]
assert ev.window is self.w
assert ev.message_type == "NOMASK"
assert ev.format == 32
assert ev.data == data
self.evs = []
l.sendClientMessage(self.root(), False, l.const["Button1MotionMask"],
"BAD", *data)
l.addXSelectInput(self.root(), l.const["Button1MotionMask"])
l.sendClientMessage(self.root(), False, l.const["Button1MotionMask"],
"GOOD", *data)
gtk.main()
assert len(self.evs) == 1
ev = self.evs[0]
assert ev.window is self.root()
assert ev.message_type == "GOOD"
assert ev.format == 32
assert ev.data == data
def setup_tray_window(self):
display = gtk.gdk.display_get_default()
root = gtk.gdk.get_default_root_window()
screen = root.get_screen()
if TRANSPARENCY:
colormap, visual = screen.get_rgba_colormap(
), screen.get_rgba_visual()
if colormap is None or visual is None:
log.warn("setup tray: using rgb visual fallback")
colormap, visual = screen.get_rgb_colormap(
), screen.get_rgb_visual()
assert colormap is not None and visual is not None, "failed to obtain visual or colormap"
owner = myGetSelectionOwner(root, SELECTION)
log("setup tray: current selection owner=%s", owner)
if owner != const["XNone"]:
raise Exception("%s already owned by %s" % (SELECTION, owner))
self.tray_window = gtk.gdk.Window(root,
width=1,
height=1,
window_type=gtk.gdk.WINDOW_TOPLEVEL,
event_mask=0,
wclass=gtk.gdk.INPUT_OUTPUT,
title="Xpra-SystemTray",
visual=visual,
colormap=colormap)
set_tray_visual(self.tray_window, visual)
set_tray_orientation(self.tray_window, TRAY_ORIENTATION_HORZ)
log("setup tray: tray window %s", get_xwindow(self.tray_window))
display.request_selection_notification(SELECTION)
setsel = mySetSelectionOwner(root, self.tray_window, SELECTION)
log("setup tray: set selection owner returned %s", setsel)
event_mask = const["StructureNotifyMask"]
sendClientMessage(root, root, False, event_mask, "MANAGER",
const["CurrentTime"], SELECTION,
get_xwindow(self.tray_window), 0, 0)
owner = myGetSelectionOwner(root, SELECTION)
#FIXME: cleanup if we fail!
assert owner == get_xwindow(
self.tray_window
), "we failed to get ownership of the tray selection"
add_event_receiver(self.tray_window, self)
log("setup tray: done")
def setup_tray_window(self):
display = gtk.gdk.display_get_default()
root = gtk.gdk.get_default_root_window()
screen = root.get_screen()
if TRANSPARENCY:
colormap, visual = screen.get_rgba_colormap(), screen.get_rgba_visual()
if colormap is None or visual is None:
log.warn("setup tray: using rgb visual fallback")
colormap, visual = screen.get_rgb_colormap(), screen.get_rgb_visual()
assert colormap is not None and visual is not None, "failed to obtain visual or colormap"
owner = myGetSelectionOwner(root, SELECTION)
log("setup tray: current selection owner=%s", owner)
if owner!=const["XNone"]:
raise Exception("%s already owned by %s" % (SELECTION, owner))
self.tray_window = gtk.gdk.Window(root, width=1, height=1,
window_type=gtk.gdk.WINDOW_TOPLEVEL,
event_mask = 0,
wclass=gtk.gdk.INPUT_OUTPUT,
title="Xpra-SystemTray",
visual=visual,
colormap=colormap)
set_tray_visual(self.tray_window, visual)
set_tray_orientation(self.tray_window, TRAY_ORIENTATION_HORZ)
log("setup tray: tray window %s", get_xwindow(self.tray_window))
display.request_selection_notification(SELECTION)
setsel = mySetSelectionOwner(root, self.tray_window, SELECTION)
log("setup tray: set selection owner returned %s", setsel)
event_mask = const["StructureNotifyMask"]
sendClientMessage(root, root, False, event_mask, "MANAGER",
const["CurrentTime"], SELECTION,
get_xwindow(self.tray_window), 0, 0)
owner = myGetSelectionOwner(root, SELECTION)
#FIXME: cleanup if we fail!
assert owner==get_xwindow(self.tray_window), "we failed to get ownership of the tray selection"
add_event_receiver(self.tray_window, self)
log("setup tray: done")