xwayland: Release keys on keyboard `enter` event if `leave` wasn't received

The code here assumed a `leave` event always occurs between two `enter`
events. On Sway (and presumably other compositors) this happens even if
the client has destroyed the `wl_surface`, but the client gets a null
`surface` here. (Which presumably on on the wire is the id of the
destroyed surface.)

This seems like a bad thing to rely on, and is easy to avoid. But if
this is correct to assume, the Wayland protocol should be explicit about
this.

Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1527>
This commit is contained in:
Ian Douglas Scott 2024-05-09 15:02:06 -07:00 committed by Marge Bot
parent 23c295ea8b
commit 386b54fbe9

View File

@ -1215,6 +1215,10 @@ keyboard_handle_enter(void *data, struct wl_keyboard *keyboard,
xwl_seat->xwl_screen->serial = serial;
xwl_seat->keyboard_focus = surface;
/* If `leave` wasn't sent (for a destroyed surface), release keys here. */
wl_array_for_each(k, &xwl_seat->keys)
QueueKeyboardEvents(xwl_seat->keyboard, LeaveNotify, *k + 8);
wl_array_copy(&xwl_seat->keys, keys);
wl_array_for_each(k, &xwl_seat->keys)
QueueKeyboardEvents(xwl_seat->keyboard, EnterNotify, *k + 8);
@ -1229,6 +1233,7 @@ xwl_seat_leave_kbd(struct xwl_seat *xwl_seat)
wl_array_for_each(k, &xwl_seat->keys)
QueueKeyboardEvents(xwl_seat->keyboard, LeaveNotify, *k + 8);
xwl_seat->keys.size = 0;
xwl_seat->keyboard_focus = NULL;