def do_get_property_contents_handle(self, name):
if self._window is None:
#shortcut out
return None
if self._contents_handle is None:
log("refreshing named pixmap")
assert self._listening_to is None
def set_pixmap():
# The tricky part here is that the pixmap returned by
# NameWindowPixmap gets invalidated every time the window's
# viewable state changes. ("viewable" here is the X term that
# means "mapped, and all ancestors are also mapped".) But
# there is no X event that will tell you when a window's
# viewability changes! Instead we have to find all ancestors,
# and watch all of them for unmap and reparent events. But
# what about races? I hear you cry. By doing things in the
# exact order:
# 1) select for StructureNotify
# 2) QueryTree to get parent
# 3) repeat 1 & 2 up to the root
# 4) call NameWindowPixmap
# we are safe. (I think.)
listening = []
e = None
try:
win = get_parent(self._window)
while win is not None and win.get_parent() is not None:
# We have to use a lowlevel function to manipulate the
# event selection here, because SubstructureRedirectMask
# does not roundtrip through the GDK event mask
# functions. So if we used them, here, we would clobber
# corral window selection masks, and those don't deserve
# clobbering. They are our friends! X is driving me
# slowly mad.
X11Window.addXSelectInput(
get_xwindow(win), constants["StructureNotifyMask"])
add_event_receiver(win, self, max_receivers=-1)
listening.append(win)
win = get_parent(win)
handle = XImage.get_xcomposite_pixmap(
get_xwindow(self._window))
except Exception, e:
try:
self._cleanup_listening(listening)
except:
pass
raise
if handle is None:
log("failed to name a window pixmap for %s: %s",
get_xwindow(self._window), e)
self._cleanup_listening(listening)
else:
self._contents_handle = handle
# Don't save the listening set until after
# NameWindowPixmap has succeeded, to maintain our
# invariant:
self._listening_to = listening
trap.swallow_synced(set_pixmap)
def x11_init(self):
X11ServerBase.x11_init(self)
init_x11_filter()
self._has_focus = 0
# Do this before creating the Wm object, to avoid clobbering its
# selecting SubstructureRedirect.
root = gtk.gdk.get_default_root_window()
root.set_events(root.get_events() | gtk.gdk.SUBSTRUCTURE_MASK)
root.property_change(gtk.gdk.atom_intern("XPRA_SERVER", False),
gtk.gdk.atom_intern("STRING", False),
8,
gtk.gdk.PROP_MODE_REPLACE,
xpra.__version__)
add_event_receiver(root, self)
### Create the WM object
self._wm = Wm(self.clobber)
self._wm.connect("new-window", self._new_window_signaled)
self._wm.connect("bell", self._bell_signaled)
self._wm.connect("quit", lambda _: self.quit(True))
self.default_cursor_data = None
self.last_cursor_serial = None
self.send_cursor_pending = False
self.cursor_data = None
self.cursor_sizes = None
def get_default_cursor():
self.default_cursor_data = X11Keyboard.get_cursor_image()
log("get_default_cursor=%s", self.default_cursor_data)
trap.swallow_synced(get_default_cursor)
self._wm.enableCursors(True)
def reset_x_focus(self):
focuslog("reset_x_focus: widget with focus: %s", self.get_focus())
def do_reset_x_focus():
self._take_focus()
root_set("_NET_ACTIVE_WINDOW", "u32", XNone)
trap.swallow_synced(do_reset_x_focus)
def reset_x_focus(self):
focuslog("reset_x_focus: widget with focus: %s", self.get_focus())
def do_reset_x_focus():
self._take_focus()
root_set("_NET_ACTIVE_WINDOW", "u32", XNone)
trap.swallow_synced(do_reset_x_focus)
def _process_mouse_common(self, proto, wid, pointer, modifiers):
ss = self._server_sources.get(proto)
if ss is None:
return
pos = gtk.gdk.get_default_root_window().get_pointer()[:2]
if pos == pointer:
return
trap.swallow_synced(self._move_pointer, wid, pointer)
ss.make_keymask_match(modifiers)
def _process_mouse_common(self, proto, wid, pointer, modifiers):
ss = self._server_sources.get(proto)
if ss is None:
return
pos = gtk.gdk.get_default_root_window().get_pointer()[:2]
if pos==pointer:
return
trap.swallow_synced(self._move_pointer, wid, pointer)
ss.make_keymask_match(modifiers)
def do_get_property_contents_handle(self, name):
if self._window is None:
#shortcut out
return None
if self._contents_handle is None:
log("refreshing named pixmap")
assert self._listening_to is None
def set_pixmap():
# The tricky part here is that the pixmap returned by
# NameWindowPixmap gets invalidated every time the window's
# viewable state changes. ("viewable" here is the X term that
# means "mapped, and all ancestors are also mapped".) But
# there is no X event that will tell you when a window's
# viewability changes! Instead we have to find all ancestors,
# and watch all of them for unmap and reparent events. But
# what about races? I hear you cry. By doing things in the
# exact order:
# 1) select for StructureNotify
# 2) QueryTree to get parent
# 3) repeat 1 & 2 up to the root
# 4) call NameWindowPixmap
# we are safe. (I think.)
listening = []
e = None
try:
win = get_parent(self._window)
while win is not None and win.get_parent() is not None:
# We have to use a lowlevel function to manipulate the
# event selection here, because SubstructureRedirectMask
# does not roundtrip through the GDK event mask
# functions. So if we used them, here, we would clobber
# corral window selection masks, and those don't deserve
# clobbering. They are our friends! X is driving me
# slowly mad.
X11Window.addXSelectInput(get_xwindow(win), constants["StructureNotifyMask"])
add_event_receiver(win, self, max_receivers=-1)
listening.append(win)
win = get_parent(win)
handle = XImage.get_xcomposite_pixmap(get_xwindow(self._window))
except Exception, e:
try:
self._cleanup_listening(listening)
except:
pass
raise
if handle is None:
log("failed to name a window pixmap for %s: %s", get_xwindow(self._window), e)
self._cleanup_listening(listening)
else:
self._contents_handle = handle
# Don't save the listening set until after
# NameWindowPixmap has succeeded, to maintain our
# invariant:
self._listening_to = listening
trap.swallow_synced(set_pixmap)
def _update_window_list(self, *args):
# Ignore errors because not all the windows may still exist; if so,
# then it's okay to leave the lists out of date for a moment, because
# in a moment we'll get a signal telling us about the window that
# doesn't exist anymore, will remove it from the list, and then call
# _update_window_list again.
trap.swallow_synced(self.root_set, "_NET_CLIENT_LIST", ["window"],
self._windows_in_order)
# This is a lie, but we don't maintain a stacking order, so...
trap.swallow_synced(self.root_set, "_NET_CLIENT_LIST_STACKING",
["window"], self._windows_in_order)
def _update_window_list(self, *args):
# Ignore errors because not all the windows may still exist; if so,
# then it's okay to leave the lists out of date for a moment, because
# in a moment we'll get a signal telling us about the window that
# doesn't exist anymore, will remove it from the list, and then call
# _update_window_list again.
trap.swallow_synced(self.root_set, "_NET_CLIENT_LIST",
["window"], self._windows_in_order)
# This is a lie, but we don't maintain a stacking order, so...
trap.swallow_synced(self.root_set, "_NET_CLIENT_LIST_STACKING",
["window"], self._windows_in_order)
def do_child_configure_request_event(self, event):
# The point of this method is to handle configure requests on
# withdrawn windows. We simply allow them to move/resize any way they
# want. This is harmless because the window isn't visible anyway (and
# apps can create unmapped windows with whatever coordinates they want
# anyway, no harm in letting them move existing ones around), and it
# means that when the window actually gets mapped, we have more
# accurate info on what the app is actually requesting.
log("do_child_configure_request_event(%s)", event)
if event.window in self._windows:
return
log("Reconfigure on withdrawn window")
trap.swallow_synced(X11Window.configureAndNotify,
get_xwindow(event.window), event.x, event.y,
event.width, event.height, event.value_mask)
def do_child_configure_request_event(self, event):
# The point of this method is to handle configure requests on
# withdrawn windows. We simply allow them to move/resize any way they
# want. This is harmless because the window isn't visible anyway (and
# apps can create unmapped windows with whatever coordinates they want
# anyway, no harm in letting them move existing ones around), and it
# means that when the window actually gets mapped, we have more
# accurate info on what the app is actually requesting.
log("do_child_configure_request_event(%s)", event)
if event.window in self._windows:
return
log("Reconfigure on withdrawn window")
trap.swallow_synced(X11Window.configureAndNotify,
event.window.xid, event.x, event.y,
event.width, event.height,
event.value_mask)
def cleanup(self):
debug("Tray.cleanup()")
root = gtk.gdk.get_default_root_window()
owner = X11Window.XGetSelectionOwner(SELECTION)
if owner==get_xwindow(self.tray_window):
X11Window.XSetSelectionOwner(get_xwindow(root), SELECTION)
else:
log.warn("Tray.cleanup() we were no longer the selection owner")
remove_event_receiver(self.tray_window, self)
def undock(window):
debug("undocking %s", window)
X11Window.Withdraw(get_xwindow(window))
X11Window.Reparent(get_xwindow(window), get_xwindow(root), 0, 0)
X11Window.MapRaised(get_xwindow(window))
for window, tray_window in self.tray_windows.items():
trap.swallow_synced(undock, window)
tray_window.destroy()
self.tray_window.destroy()
self.tray_window = None
log("Tray.cleanup() done")
def cleanup(self):
debug("Tray.cleanup()")
root = gtk.gdk.get_default_root_window()
owner = X11Window.XGetSelectionOwner(SELECTION)
if owner == get_xwindow(self.tray_window):
X11Window.XSetSelectionOwner(get_xwindow(root), SELECTION)
else:
log.warn("Tray.cleanup() we were no longer the selection owner")
remove_event_receiver(self.tray_window, self)
def undock(window):
debug("undocking %s", window)
X11Window.Withdraw(get_xwindow(window))
X11Window.Reparent(get_xwindow(window), get_xwindow(root), 0, 0)
X11Window.MapRaised(get_xwindow(window))
for window, tray_window in self.tray_windows.items():
trap.swallow_synced(undock, window)
tray_window.destroy()
self.tray_window.destroy()
self.tray_window = None
log("Tray.cleanup() done")
def destroy(self):
if self._window is None:
log.warn("composite window %s already destroyed!", self)
return
#clear the reference to the window early:
win = self._window
xwin = get_xwindow(self._window)
#Note: invalidate_pixmap()/_cleanup_listening() use self._window, but won't care if it's None
self._window = None
remove_event_receiver(win, self)
self.invalidate_pixmap()
if not self._already_composited:
trap.swallow_synced(X11Window.XCompositeUnredirectWindow, xwin)
if self._damage_handle:
trap.swallow_synced(X11Window.XDamageDestroy, self._damage_handle)
self._damage_handle = None
if self._shm_handle:
self._shm_handle.cleanup()
self._shm_handle = None
#note: this should be redundant since we cleared the
#reference to self._window and shortcut out in do_get_property_contents_handle
#but it's cheap anyway
self.invalidate_pixmap()
def destroy(self):
if self._window is None:
log.warn("composite window %s already destroyed!", self)
return
#clear the reference to the window early:
win = self._window
xwin = get_xwindow(self._window)
#Note: invalidate_pixmap()/_cleanup_listening() use self._window, but won't care if it's None
self._window = None
remove_event_receiver(win, self)
self.invalidate_pixmap()
if not self._already_composited:
trap.swallow_synced(X11Window.XCompositeUnredirectWindow, xwin)
if self._damage_handle:
trap.swallow_synced(X11Window.XDamageDestroy, self._damage_handle)
self._damage_handle = None
if self._shm_handle:
self._shm_handle.cleanup()
self._shm_handle = None
#note: this should be redundant since we cleared the
#reference to self._window and shortcut out in do_get_property_contents_handle
#but it's cheap anyway
self.invalidate_pixmap()
def reset_x_focus(self):
log("widget with focus: %s", self.get_focus())
def do_reset_x_focus():
self._take_focus()
root_set("_NET_ACTIVE_WINDOW", "u32", constants["XNone"])
trap.swallow_synced(do_reset_x_focus)
def acknowledge_changes(self):
if self._damage_handle is not None and self._window is not None:
#"Synchronously modifies the regions..." so unsynced?
if not trap.swallow_synced(X11Window.XDamageSubtract, self._damage_handle):
self.invalidate_pixmap()
def acknowledge_changes(self):
if self._damage_handle is not None and self._window is not None:
#"Synchronously modifies the regions..." so unsynced?
if not trap.swallow_synced(X11Window.XDamageSubtract, self._damage_handle):
self.invalidate_pixmap()