change kbd layout using setxkbmap

server/internal/remote/manager.go

@@ -218,3 +218,7 @@ func (manager *RemoteManager) ScreenConfigurations() map[int]types.ScreenConfigu
 func (manager *RemoteManager) GetScreenSize() *types.ScreenSize {
 	return xorg.GetScreenSize()
 }
+
+func (manager *RemoteManager) SetKeyboard(layout string) {
+	xorg.SetKeyboard(layout)
+}

server/internal/types/remote.go

@@ -22,4 +22,5 @@ type RemoteManager interface {
 	ReadClipboard() string
 	WriteClipboard(data string)
 	ResetKeys()
+	SetKeyboard(layout string)
 }

server/internal/websocket/control.go

@@ -34,8 +34,9 @@ func (h *MessageHandler) controlRelease(id string, session types.Session) error
 func (h *MessageHandler) controlRequest(id string, session types.Session, payload *message.ControlRequest) error {
 	// check for host
 	if !h.sessions.HasHost() {
-		// TODO: Keyboard Layout change.
-		h.logger.Warn().Msgf("should set keyboard to %s", payload.KeyboardLayout)
+		// keyboard layout change
+		h.logger.Debug().Msgf("change keyboard to %s", payload.KeyboardLayout)
+		h.remote.SetKeyboard(payload.KeyboardLayout)
 
 		// set host
 		h.sessions.SetHost(id)

server/internal/xorg/xorg.c

@@ -165,3 +165,10 @@ short XGetScreenRate() {
   XRRScreenConfiguration *conf  = XRRGetScreenInfo(display, RootWindow(display, 0));
   return XRRConfigCurrentRate(conf);
 }
+
+void SetKeyboard(char *layout) {
+  // TOOD: refactor, use native API.
+  char cmd[12] = "setxkbmap ";
+  strcat(cmd, layout);
+  system(cmd);
+}

server/internal/xorg/xorg.go

@@ -210,6 +210,16 @@ func GetScreenSize() *types.ScreenSize {
 	return nil
 }
 
+func SetKeyboard(layout string) {
+	mu.Lock()
+	defer mu.Unlock()
+
+	layoutUnsafe := C.CString(layout)
+	defer C.free(unsafe.Pointer(layoutUnsafe))
+
+	C.SetKeyboard(layoutUnsafe)
+}
+
 //export goCreateScreenSize
 func goCreateScreenSize(index C.int, width C.int, height C.int, mwidth C.int, mheight C.int) {
 	ScreenConfigurations[int(index)] = types.ScreenConfiguration{

server/internal/xorg/xorg.h

@@ -38,5 +38,7 @@
 
   void XDisplayClose(void);
   void XDisplaySet(char *input);
+
+  void SetKeyboard(char *layout);
 #endif