keep xkb progress

src/CMakeLists.txt

@@ -32,6 +32,7 @@ add_executable(${APP_NAME}
     xwindow.c
     event.c
     action.c
+    xkb.c
 )
 
 # use C23
@@ -50,6 +51,8 @@ pkg_check_modules(deps REQUIRED
     xcb-randr
     xcb-xfixes
     xcb-xinerama
+    xcb-xkb
+    xkbcommon-x11
 
     cairo
     cairo-xcb

src/wm.h

@@ -2,6 +2,7 @@
 
 #include <stdint.h>
 #include <xcb/xcb_keysyms.h>
+#include <xkbcommon/xkbcommon.h>
 
 #include "types.h"
 
@@ -25,6 +26,10 @@ typedef struct wm_t {
   bool have_xfixes;
   bool have_xinerama;
   bool have_randr;
+  bool have_xkb;
+
+  struct xkb_context *xkb_ctx;
+  struct xkb_state *xkb_state;
 
   color_set_t color_set;
 } wm_t;

src/xkb.c

@@ -0,0 +1,45 @@
+#include "xkb.h"
+
+#include <xcb/xcb.h>
+#include <xcb/xkb.h>
+#include <xkbcommon/xkbcommon-x11.h>
+#include <xkbcommon/xkbcommon.h>
+
+#include "utils.h"
+#include "wm.h"
+
+static void xkb_fill_state(void) {}
+
+static void xkb_init_keymap(void) {
+  wm.xkb_ctx = xkb_context_new(XKB_CONTEXT_NO_FLAGS);
+  if (!wm.xkb_ctx) fatal("Cannot get XKB context");
+
+  xkb_fill_state();
+}
+
+static void xkb_free_keymap(void) {
+  xkb_state_unref(wm.xkb_state);
+  xkb_context_unref(wm.xkb_ctx);
+}
+
+void xkb_init(void) {
+  wm.have_xkb = xkb_x11_setup_xkb_extension(
+    wm.xcb_conn, XKB_X11_MIN_MAJOR_XKB_VERSION, XKB_X11_MIN_MINOR_XKB_VERSION,
+    XKB_X11_SETUP_XKB_EXTENSION_NO_FLAGS, nullptr, nullptr, nullptr, nullptr);
+  if (!wm.have_xkb) {
+    warn("XKB not found or not supported");
+    xkb_init_keymap();
+    return;
+  }
+
+  xcb_discard_reply(wm.xcb_conn,
+                    xcb_xkb_per_client_flags(
+                      wm.xcb_conn, XCB_XKB_ID_USE_CORE_KBD,
+                      XCB_XKB_PER_CLIENT_FLAG_DETECTABLE_AUTO_REPEAT,
+                      XCB_XKB_PER_CLIENT_FLAG_DETECTABLE_AUTO_REPEAT, 0, 0, 0)
+                      .sequence);
+  
+  xkb_init_keymap();
+}
+
+void xkb_free(void) { xkb_free_keymap(); }

src/xkb.h

@@ -0,0 +1,4 @@
+#pragma once
+
+void xkb_init(void);
+void xkb_free(void);