(defvar mdw-designated-window nil
"The window chosen by `mdw-designate-window', or nil.")
-(defun mdw-designate-window (cancel)
- "Use the selected window for the next pop-up buffer.
-With a prefix argument, clear the designated window."
- (interactive "P")
- (cond (cancel
- (setq mdw-designated-window nil)
- (message "Window designation cleared."))
- (t
- (setq mdw-designated-window (selected-window))
- (message "Window designated."))))
+(defun mdw-designated-window-display-buffer-function (buffer not-this-window)
+ "Display buffer function to use the designated window."
+ (unless mdw-designated-window (error "No designated window!"))
+ (prog1 mdw-designated-window
+ (with-selected-window mdw-designated-window (switch-to-buffer buffer))
+ (setq mdw-designated-window nil
+ display-buffer-function nil)))
(defun mdw-display-buffer-in-designated-window (buffer alist)
"Display function to use the designated window."
(switch-to-buffer buffer nil t)))
(setq mdw-designated-window nil)))
-(setq display-buffer-base-action
- (let* ((action display-buffer-base-action)
- (funcs (car action))
- (alist (cdr action)))
- (cons (cons 'mdw-display-buffer-in-designated-window funcs) alist)))
+(defun mdw-designate-window (cancel)
+ "Use the selected window for the next pop-up buffer.
+With a prefix argument, clear the designated window."
+ (interactive "P")
+ (let ((window (selected-window)))
+ (cond (cancel
+ (setq mdw-designated-window nil)
+ (unless (mdw-emacs-version-p 24)
+ (setq display-buffer-function nil))
+ (message "Window designation cleared."))
+ ((window-dedicated-p window)
+ (error "Window is dedicated to its buffer."))
+ (t
+ (setq mdw-designated-window window)
+ (unless (mdw-emacs-version-p 24)
+ (setq display-buffer-function
+ #'mdw-designated-window-display-buffer-function))
+ (message "Window designated.")))))
+
+(when (mdw-emacs-version-p 24)
+ (setq display-buffer-base-action
+ (let* ((action display-buffer-base-action)
+ (funcs (car action))
+ (alist (cdr action)))
+ (cons (cons 'mdw-display-buffer-in-designated-window funcs)
+ alist))))
(defun mdw-clobber-other-windows-showing-buffer (buffer-or-name)
"Arrange that no windows on other frames are showing BUFFER-OR-NAME."
(let ((output nil))
(dolist (item first)
(let ((key (car item)) (value (cdr item)))
- (if (string-suffix-p "-alist" (symbol-name key))
+ (if (let* ((key-name (symbol-name key))
+ (key-len (length key-name)))
+ (and (>= key-len 5)
+ (string= (subseq key-name (- key-len 5)) "-alist")))
(push (cons key
(mdw-merge-style-alists value
(cdr (assoc key second))))