These hints allow an acceleration architecture to optimize allocation of certain
types of pixmaps, such as pixmaps that will serve as backing pixmaps for
redirected windows.
If we inherited a signal mask from the parent process that ignores SIGUSR1,
then we will send SIGUSR1 to the parent to indicate when we're ready to
accept connections. Unfortunately, we send this notification way too
early, right after creating the sockets rather than just before entering
the main loop.
Move it to just before Dispatch() so we're not lying quite so much.
FixKeyState needs to be able to handle XI events, otherwise we get "impossible
keyboard events" on server zaps and other special key combos.
(cherry picked from commit 5ee409794e)
the hook - the hook only needs the Atom to control access to the selection
object. Upgraded the SelectionCallback to take a client argument and
additional type codes so that it can be used for redirection.
Floating devices get sprites, but still aren't spriteOwners. This prevents
them from getting rendered, and also stops segfaulting.
(not really solving the problems with keyboards though)
Set isMaster for VCP/VCK.
Init sprites for master pointer devices.
Pair master kbds with master pointers (1:1 pairing!).
Attach other devices to VCP/VCK.
For now, we don't allow attaching slaves to other slaves, and we don't allow
pairing slaves with other slaves.
Pairing is for master keyboard->master pointer only.
Attaching is for slave device->master device only.
We re-pair them with the VCP, not a real device! If we would do otherwise,
somebody may change our keyboard focus and thus get us typing where we don't
want to type.
If the pairing client is not set, then the pairing is initiated internally
(e.g. when a new keyboard device is configured). In this case we _must_ pair
regardless of who is the pairing client.
In some cases a button press may activate a passive core grab. If the client
owning the passive grab already has a core grab on another device, don't
actually activate it. Otherwise the client gets two simultaneous passive
core grabs, and may never ungrab the device again (only if the other grab uses
GrabModeSync).
Reproducable: fire up gnome-session, open up gnome-terminal. Click with the
ClientPointer onto the window decoration, then click with another pointer onto
an application icon in the panel. Drag the icon out, release the button and
voila - you just lost your second mouse.
