xserver/xkb
Julian Orth d038d2c080 xwayland: Don't run key behaviors and actions
Consider the following keymap:

```xkb
xkb_keymap {
    xkb_keycodes {
        <compose> = 135;
    };
    xkb_symbols {
        key <compose> {
            [ SetGroup(group = +1) ]
        };
    };
};
```

When the user presses the compose key, the following happens:

1. The compositor forwards the key to Xwayland.
2. Xwayland executes the SetGroup action and sets the base_group to 1
   and the effective group to 1.
3. The compositor updates its own state and sends the effective group,
   1, to Xwayland.
4. Xwayland sets the locked group to 1 and the effective group to
   1 + 1 = 2.

This is wrong since pressing compose should set the effective group to 1
but to X applications the effective group appears to be 2.

This commit makes it so that Xwayland completely ignores the key
behaviors and actions of the keymap and only updates the modifier and
group components in response to the wayland modifiers events.

Signed-off-by: Julian Orth <ju.orth@gmail.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1758>
(cherry picked from commit 45c1d22ff6)
2026-01-25 10:39:58 -08:00
..
ddxBeep.c Drop trailing whitespaces 2014-11-12 10:25:00 +10:00
ddxCtrls.c Drop trailing whitespaces 2014-11-12 10:25:00 +10:00
ddxKillSrv.c Drop trailing whitespaces 2014-11-12 10:25:00 +10:00
ddxLEDs.c Drop trailing whitespaces 2014-11-12 10:25:00 +10:00
ddxLoad.c treewide: replace xnfstrdup() calls by XNFstrdup() 2026-01-25 10:39:55 -08:00
ddxPrivate.c Introduce a consistent coding style 2012-03-21 13:54:42 -07:00
ddxVT.c Drop trailing whitespaces 2014-11-12 10:25:00 +10:00
maprules.c xkb: drop defining XKBSRV_NEED_FILE_FUNCS 2026-01-19 12:32:18 -08:00
meson.build Add a Meson build system alongside autotools. 2017-04-26 15:25:27 -07:00
README.compiled R6.6 is the Xorg base-line 2003-11-14 15:54:54 +00:00
xkb-procs.h xkb: rename xkb.h to xkb-procs.h 2022-07-08 14:27:04 +00:00
xkb.c xkb: Fix buffer overflow in _XkbSetCompatMap() 2026-01-25 10:39:58 -08:00
xkbAccessX.c xkb: move *_TIMER defines into xkbAccessX.c 2026-01-25 10:39:52 -08:00
xkbActions.c xwayland: Don't run key behaviors and actions 2026-01-25 10:39:58 -08:00
XKBAlloc.c Convert XKB to new *allocarray functions 2015-04-21 16:57:54 -07:00
xkbDflts.h Use ARRAY_SIZE all over the tree 2017-10-30 13:45:20 -04:00
xkbEvents.c xkb: rename xkb.h to xkb-procs.h 2022-07-08 14:27:04 +00:00
xkbfmisc.c xkb: drop ununsed XkbNameMatchesPattern() 2026-01-19 12:32:25 -08:00
XKBGAlloc.c xkb: Fix heap overflow caused by optimized away min. 2020-12-04 18:31:06 -05:00
xkbgeom.h Drop trailing whitespaces 2014-11-12 10:25:00 +10:00
xkbInit.c xkb: xkbInit: fix char signess mismatch 2026-01-25 10:39:57 -08:00
xkbLEDs.c dix: Force update LEDs after device state update in EnableDevice 2023-02-21 03:43:05 +00:00
XKBMAlloc.c xkb: Always use MAP_LENGTH keymap size 2026-01-25 10:39:58 -08:00
XKBMisc.c xkb: drop defining XKBSRV_NEED_FILE_FUNCS 2026-01-19 12:32:18 -08:00
xkbout.c xkb: drop defining XKBSRV_NEED_FILE_FUNCS 2026-01-19 12:32:18 -08:00
xkbPrKeyEv.c xwayland: Don't run key behaviors and actions 2026-01-25 10:39:58 -08:00
xkbSwap.c xkb: rename xkb.h to xkb-procs.h 2022-07-08 14:27:04 +00:00
xkbtext.c xkb: xkbtext: fix char signess mismatch 2026-01-25 10:39:57 -08:00
xkbUtils.c xkb: Always use MAP_LENGTH keymap size 2026-01-25 10:39:58 -08:00
XKM_file_format.txt Fix spelling/wording issues 2020-07-05 13:07:33 -07:00
xkmread.c xkb: make XkbInternAtom() static 2026-01-25 10:39:53 -08:00

The X server uses this directory to store the compiled version of the
current keymap and/or any scratch keymaps used by clients.  The X server
or some other tool might destroy or replace the files in this directory,
so it is not a safe place to store compiled keymaps for long periods of
time.  The default keymap for any server is usually stored in:
     X<num>-default.xkm
where <num> is the display number of the server in question, which makes
it possible for several servers *on the same host* to share the same 
directory.

Unless the X server is modified, sharing this directory between servers on
different hosts could cause problems.