(menu-bar-menu-frame-live-and-visible-p)

(menu-bar-non-minibuffer-window-p): New functions.
("Split Window", "Save As..."): Use them.
("Postscript Print Buffer (B+W)", "Postscript Print Buffer")
("Print Buffer", "Truncate Long Lines in this Buffer"):  Use
menu-bar-menu-frame-live-and-visible-p.
("Save Buffer", "Insert File", "Open Directory...")
("Open File...", "Visit New File..."): Use
menu-bar-non-minibuffer-window-p.
(kill-this-buffer-enabled-p, dired <menu-enable>): Use
menu-bar-non-minibuffer-window-p.

lisp/menu-bar.el

@@ -105,12 +105,8 @@ A large number or nil slows down menu responsiveness."
 
 (define-key menu-bar-file-menu [split-window]
   '(menu-item "Split Window" split-window-vertically
-	      :enable (or (not (display-multi-frame-p))
-			  (and (frame-live-p menu-updating-frame)
-			       (frame-visible-p menu-updating-frame )
-			       (not (window-minibuffer-p
-				     (frame-selected-window
-				      menu-updating-frame)))))
+	      :enable (and (menu-bar-menu-frame-live-and-visible-p)
+			   (menu-bar-non-minibuffer-window-p))
 	      :help "Split selected window in two windows"))
 
 (define-key menu-bar-file-menu [separator-window]
@@ -122,9 +118,7 @@ A large number or nil slows down menu responsiveness."
 	      :help "Pretty-print marked region in black and white to PostScript printer"))
 (define-key menu-bar-file-menu [ps-print-buffer]
   '(menu-item "Postscript Print Buffer (B+W)" ps-print-buffer
-	      :enable (or (not (display-multi-frame-p))
-			  (and (frame-live-p menu-updating-frame)
-			       (frame-visible-p menu-updating-frame)))
+	      :enable (menu-bar-menu-frame-live-and-visible-p)
 	      :help "Pretty-print current buffer in black and white to PostScript printer"))
 (define-key menu-bar-file-menu [ps-print-region-faces]
   '(menu-item "Postscript Print Region" ps-print-region-with-faces
@@ -132,9 +126,7 @@ A large number or nil slows down menu responsiveness."
 	      :help "Pretty-print marked region to PostScript printer"))
 (define-key menu-bar-file-menu [ps-print-buffer-faces]
   '(menu-item "Postscript Print Buffer" ps-print-buffer-with-faces
-	      :enable (or (not (display-multi-frame-p))
-			  (and (frame-live-p menu-updating-frame)
-			       (frame-visible-p menu-updating-frame)))
+	      :enable (menu-bar-menu-frame-live-and-visible-p)
 	      :help "Pretty-print current buffer to PostScript printer"))
 (define-key menu-bar-file-menu [print-region]
   '(menu-item "Print Region" print-region
@@ -142,9 +134,7 @@ A large number or nil slows down menu responsiveness."
 	      :help "Print region between mark and current position"))
 (define-key menu-bar-file-menu [print-buffer]
   '(menu-item "Print Buffer" print-buffer
-	      :enable (or (not (display-multi-frame-p))
-			  (and (frame-live-p menu-updating-frame)
-			       (frame-visible-p menu-updating-frame)))
+	      :enable (menu-bar-menu-frame-live-and-visible-p)
 	      :help "Print current buffer with page headings"))
 
 (define-key menu-bar-file-menu [separator-print]
@@ -175,21 +165,14 @@ A large number or nil slows down menu responsiveness."
 	      :help "Re-read current buffer from its file"))
 (define-key menu-bar-file-menu [write-file]
   '(menu-item "Save As..." write-file
-	      :enable (or (not (display-multi-frame-p))
-			  (and (frame-live-p menu-updating-frame)
-			       (frame-visible-p menu-updating-frame )
-			       (not (window-minibuffer-p
-				     (frame-selected-window
-				      menu-updating-frame)))))
+	      :enable (and (menu-bar-menu-frame-live-and-visible-p)
+			   (menu-bar-non-minibuffer-window-p))
 	      :help "Write current buffer to another file"))
 (define-key menu-bar-file-menu [save-buffer]
   '(menu-item "Save" save-buffer
 	      :enable (and (buffer-modified-p)
 			   (buffer-file-name)
-			   (or (not (display-multi-frame-p))
-			       (not (window-minibuffer-p
-				     (frame-selected-window
-				      menu-updating-frame)))))
+			   (menu-bar-non-minibuffer-window-p))
 	      :help "Save current buffer to its file"))
 
 (define-key menu-bar-file-menu [separator-save]
@@ -201,28 +184,19 @@ A large number or nil slows down menu responsiveness."
 	      :help "Discard (kill) current buffer"))
 (define-key menu-bar-file-menu [insert-file]
   '(menu-item "Insert File..." insert-file
-	      :enable (or (not (display-multi-frame-p))
-			  (and (not (window-minibuffer-p
-				     (frame-selected-window
-				      menu-updating-frame)))))
+	      :enable (menu-bar-non-minibuffer-window-p)
 	      :help "Insert another file into current buffer"))
 (define-key menu-bar-file-menu [dired]
   '(menu-item "Open Directory..." dired
-	      :enable (or (not (display-multi-frame-p))
-			  (not (window-minibuffer-p
-				(frame-selected-window menu-updating-frame))))
+	      :enable (menu-bar-non-minibuffer-window-p)
 	      :help "Read a directory, operate on its files"))
 (define-key menu-bar-file-menu [open-file]
   '(menu-item "Open File..." find-file-existing
-	      :enable (or (not (display-multi-frame-p))
-			  (not (window-minibuffer-p
-				(frame-selected-window menu-updating-frame))))
+	      :enable (menu-bar-non-minibuffer-window-p)
 	      :help "Read an existing file into an Emacs buffer"))
 (define-key menu-bar-file-menu [new-file]
   '(menu-item "Visit New File..." find-file
-	      :enable (or (not (display-multi-frame-p))
-			  (not (window-minibuffer-p
-				(frame-selected-window menu-updating-frame))))
+	      :enable (menu-bar-non-minibuffer-window-p)
 	      :help "Read or create a file and edit it"))
 
 
@@ -1057,9 +1031,7 @@ mail status in mode line"))
 	      toggle-truncate-lines
 	      :help "Truncate long lines on the screen"
 	      :button (:toggle . truncate-lines)
-	      :enable (or (not (display-multi-frame-p))
-			  (and (frame-live-p menu-updating-frame)
-			       (frame-visible-p menu-updating-frame)))))
+	      :enable (menu-bar-menu-frame-live-and-visible-p)))
 
 (define-key menu-bar-options-menu [highlight-separator]
   '("--"))
@@ -1440,6 +1412,23 @@ key, a click, or a menu-item"))
   '(menu-item "Emacs Tutorial" help-with-tutorial
 	      :help "Learn how to use Emacs"))
 
+(defun menu-bar-menu-frame-live-and-visible-p ()
+  "Return non-nil if the menu frame is alive and visible.
+The menu frame is the frame for which we are updating the menu."
+  (let ((menu-frame (if (display-multi-frame-p) menu-updating-frame
+		      (selected-frame))))
+    (and (frame-live-p menu-frame)
+	 (frame-visible-p menu-frame))))
+
+(defun menu-bar-non-minibuffer-window-p ()
+  "Return non-nil if selected window of the menu frame is not a minibuf window.
+
+See the documentation of `menu-bar-menu-frame-live-and-visible-p'
+for the definition of the menu frame."
+  (let ((menu-frame (if (display-multi-frame-p) menu-updating-frame
+		      (selected-frame))))
+    (not (window-minibuffer-p (frame-selected-window menu-frame)))))
+
 (defun kill-this-buffer ()	; for the menubar
   "Kill the current buffer."
   (interactive)
@@ -1452,11 +1441,10 @@ key, a click, or a menu-item"))
       (or (string-match "^ " (buffer-name (car buffers)))
 	  (setq count (1+ count)))
       (setq buffers (cdr buffers)))
-    (and (not (window-minibuffer-p (frame-selected-window menu-updating-frame)))
+    (and (menu-bar-non-minibuffer-window-p)
 	 (> count 1))))
 
-(put 'dired 'menu-enable
-     '(not (window-minibuffer-p (frame-selected-window menu-updating-frame))))
+(put 'dired 'menu-enable '(menu-bar-non-minibuffer-window-p))
 
 ;; Permit deleting frame if it would leave a visible or iconified frame.
 (defun delete-frame-enabled-p ()