fix: should select parent frame in child frames

Author: seagle0128

doom-modeline-core.el

@@ -1219,7 +1219,7 @@ used as an advice to window creation functions."
 ;; Keep `doom-modeline-current-window' up-to-date
 (defun doom-modeline--selected-window ()
   "Get the selected window."
-  (frame-selected-window))
+  (frame-selected-window (frame-parent)))
 
 (defvar doom-modeline-current-window (doom-modeline--selected-window)
   "Current window.")
@@ -1256,12 +1256,7 @@ used as an advice to window creation functions."
 (defun doom-modeline-focus-change (&rest _)
   "Focus change."
   (if (frame-focus-state (frame-parent))
-      (progn
-        (doom-modeline-set-selected-window)
-        ;; HACK: pulse after focusing in the frame to refresh the buffer name.
-        ;; @see https://github.com/seagle0128/doom-modeline/issues/591
-        (when (fboundp 'pulse-momentary-highlight-region)
-          (pulse-momentary-highlight-region 0 0)))
+      (doom-modeline-set-selected-window)
     (doom-modeline-unset-selected-window)))