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, 28 insertions, 0 deletions

diff --git a/sway/commands/input/xkb_file.c b/sway/commands/input/xkb_file.c
new file mode 100644
index 00000000..063f544d
--- /dev/null
+++ b/sway/commands/input/xkb_file.c
@@ -0,0 +1,28 @@
+#define _POSIX_C_SOURCE 200809L
+#include "sway/config.h"
+#include "sway/commands.h"
+#include "sway/input/input-manager.h"
+#include "log.h"
+
+struct cmd_results *input_cmd_xkb_file(int argc, char **argv) {
+        struct cmd_results *error = NULL;
+        if ((error = checkarg(argc, "xkb_file", EXPECTED_EQUAL_TO, 1))) {
+                return error;
+        }
+        struct input_config *ic = config->handler_context.input_config;
+        if (!ic) {
+                return cmd_results_new(CMD_FAILURE, "No input device defined.");
+        }
+
+        if (strcmp(argv[0], "-") == 0) {
+                free(ic->xkb_file);
+                ic->xkb_file = NULL;
+        } else {
+                ic->xkb_file = strdup(argv[0]);
+        }
+        ic->xkb_file_is_set = true;
+
+        sway_log(SWAY_DEBUG, "set-xkb_file for config: %s file: %s",
+                        ic->identifier, ic->xkb_file);
+        return cmd_results_new(CMD_SUCCESS, NULL);
+}