;;; winner.el --- Restore old window configurations
-;; Copyright (C) 1997, 1998, 2001 Free Software Foundation. Inc.
+;; Copyright (C) 1997, 1998, 2001, 2004 Free Software Foundation. Inc.
;; Author: Ivar Rummelhoff <ivarru@math.uio.no>
;; Created: 27 Feb 1997
;; window configuration (i.e. how the frames are partitioned into
;; windows) so that the changes can be "undone" using the command
;; `winner-undo'. By default this one is bound to the key sequence
-;; ctrl-x left. If you change your mind (while undoing), you can
-;; press ctrl-x right (calling `winner-redo'). Even though it uses
+;; ctrl-c left. If you change your mind (while undoing), you can
+;; press ctrl-c right (calling `winner-redo'). Even though it uses
;; some features of Emacs20.3, winner.el should also work with
;; Emacs19.34 and XEmacs20, provided that the installed version of
;; custom is not obsolete.
(eval-when-compile
(require 'cl))
-(eval-when-compile
- (cond
- ((eq (aref (emacs-version) 0) ?X)
- (defmacro winner-active-region ()
- '(region-active-p))
- (defsetf winner-active-region () (store)
+
+(defmacro winner-active-region ()
+ (if (fboundp 'region-active-p)
+ '(region-active-p)
+ 'mark-active))
+
+(defsetf winner-active-region () (store)
+ (if (fboundp 'zmacs-activate-region)
`(if ,store (zmacs-activate-region)
- (zmacs-deactivate-region))))
- (t (defmacro winner-active-region ()
- 'mark-active)
- (defsetf winner-active-region () (store)
- `(setq mark-active ,store)))) )
+ (zmacs-deactivate-region))
+ `(setq mark-active ,store)))
-\f(eval-and-compile
- (cond
- ((eq (aref (emacs-version) 0) ?X)
- (defalias 'winner-edges 'window-pixel-edges)
- (defsubst winner-window-list ()
- (remq (minibuffer-window)
- (window-list nil 0))))
- (t (defalias 'winner-edges 'window-edges)
- (defsubst winner-window-list ()
- (window-list nil 0)))) )
+(defalias 'winner-edges
+ (if (featurep 'xemacs) 'window-pixel-edges 'window-edges))
+(defalias 'winner-window-list
+ (if (featurep 'xemacs)
+ (lambda () (delq (minibuffer-window) (window-list nil 0)))
+ (lambda () (window-list nil 0))))
(require 'ring)
-(when (fboundp 'defgroup)
- (defgroup winner nil
- "Restoring window configurations."
- :group 'windows))
+(unless (fboundp 'defgroup)
+ (defmacro defgroup (&rest rest)))
+
+(defgroup winner nil
+ "Restoring window configurations."
+ :group 'windows)
(unless (fboundp 'defcustom)
(defmacro defcustom (symbol &optional initvalue docs &rest rest)
"Toggle winner-mode.
Setting this variable directly does not take effect;
use either \\[customize] or the function `winner-mode'."
- :set #'(lambda (symbol value)
- (winner-mode (or value 0)))
+ :set #'(lambda (symbol value) (funcall symbol (or value 0)))
:initialize 'custom-initialize-default
:type 'boolean
:group 'winner
while (= a b)
finally return (< a b)))))
-(defun winner-win-data ()
+(defun winner-win-data ()
;; Essential properties of the windows in the selected frame.
(loop for win in (winner-sorted-window-list)
collect (cons (winner-edges win) (window-buffer win))))
-
+
;; This variable is updated with the current window configuration
;; every time it changes.
(defvar winner-currents nil)
((window-live-p chosen) (select-window chosen))
((window-minibuffer-p (selected-window))
(other-window 1)))
- (when (/= minisize (window-height miniwin))
+ (when (/= minisize (window-height miniwin))
(letf (((selected-window) miniwin) )
(setf (window-height) minisize)))))
(letf (((current-buffer)))
(loop with alist
for win in (winner-window-list)
- for entry =
+ for entry =
(or (assq (window-buffer win) alist)
(car (push (list (set-buffer (window-buffer win))
(cons (mark t) (winner-active-region)))
;; Restore marks
(letf (((current-buffer)))
- (loop for buf in buffers
+ (loop for buf in buffers
for entry = (cadr (assq buf winner-point-alist))
do (progn (set-buffer buf)
(set-mark (car entry))
:type 'hook
:group 'winner)
-(defvar winner-mode-map nil "Keymap for Winner mode.")
+(defvar winner-mode-map
+ (let ((map (make-sparse-keymap)))
+ (define-key map [(control c) left] 'winner-undo)
+ (define-key map [(control c) right] 'winner-redo)
+ map)
+ "Keymap for Winner mode.")
;; Check if `window-configuration-change-hook' is working.
(defun winner-hook-installed-p ()
(not winner-mode))))
(cond
;; Turn mode on
- (on-p
+ (on-p
(setq winner-mode t)
(cond
((winner-hook-installed-p)
(add-hook 'window-configuration-change-hook 'winner-change-fun)
- (add-hook 'post-command-hook 'winner-save-old-configurations))
+ (add-hook 'post-command-hook 'winner-save-old-configurations))
(t (add-hook 'post-command-hook 'winner-save-conditionally)))
(add-hook 'minibuffer-setup-hook 'winner-save-unconditionally)
(setq winner-modified-list (frame-list))
(message "Winner undo (%d / %d)"
winner-undo-counter
(1- (ring-length winner-pending-undo-ring)))))))
-
-
-
+
+
+
\f(defun winner-undo-this () ; The heart of winner undo.
- (loop
+ (loop
(cond
((>= winner-undo-counter (ring-length winner-pending-undo-ring))
(message "No further window configuration undo information")
(return nil))
-
+
((and ; If possible configuration
(winner-set (ring-ref winner-pending-undo-ring
winner-undo-counter))
(return t)) ; .. then everything is fine.
(t ;; Otherwise, discharge it (and try the next one).
(ring-remove winner-pending-undo-ring winner-undo-counter)))))
-
+
(defun winner-redo () ; If you change your mind.
"Restore a more recent window configuration saved by Winner mode."
;;; To be evaluated when the package is loaded:
-(unless winner-mode-map
- (setq winner-mode-map (make-sparse-keymap))
- (define-key winner-mode-map [(control x) left] 'winner-undo)
- (define-key winner-mode-map [(control x) right] 'winner-redo))
-
(unless (or (assq 'winner-mode minor-mode-map-alist)
winner-dont-bind-my-keys)
(push (cons 'winner-mode winner-mode-map)
minor-mode-map-alist))
(provide 'winner)
-
+;; arch-tag: 686d1c1b-010e-42ca-a192-b5685112418f
;;; winner.el ends here