Implement input_cmd_xkb_file (#3999)

Adds a new commend "xkb_file", which constructs the internal
xkb_keymap from a xkb file rather than an RMLVO configuration.
This allows greater flexibility when specifying xkb configurations.
An xkb file can be dumped with the xkbcomp program.

1 files changed, 3 insertions, 0 deletions

diff --git a/include/sway/config.h b/include/sway/config.h
index c5558c0d..f1426453 100644
--- a/include/sway/config.h
+++ b/include/sway/config.h
@@ -138,6 +138,9 @@ struct input_config {
         char *xkb_options;
         char *xkb_rules;
         char *xkb_variant;
+        char *xkb_file;
+
+        bool xkb_file_is_set;
 
         int xkb_numlock;
         int xkb_capslock;