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ff287a27 | 1 | ;;; winner.el --- Restore old window configurations |
a14fb2b1 | 2 | |
0d30b337 | 3 | ;; Copyright (C) 1997, 1998, 2001, 2002, 2003, 2004, |
aaef169d | 4 | ;; 2005, 2006 Free Software Foundation. Inc. |
a14fb2b1 | 5 | |
e27e5e07 | 6 | ;; Author: Ivar Rummelhoff <ivarru@math.uio.no> |
a14fb2b1 | 7 | ;; Created: 27 Feb 1997 |
aaef169d | 8 | ;; Time-stamp: <2006-02-06 15:13:57 ttn> |
63f6b2c4 | 9 | ;; Keywords: convenience frames |
a14fb2b1 | 10 | |
21f3d1d3 RS |
11 | ;; This file is part of GNU Emacs. |
12 | ||
13 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
a14fb2b1 RS |
14 | ;; it under the terms of the GNU General Public License as published by |
15 | ;; the Free Software Foundation; either version 2, or (at your option) | |
16 | ;; any later version. | |
17 | ||
21f3d1d3 | 18 | ;; GNU Emacs is distributed in the hope that it will be useful, |
a14fb2b1 RS |
19 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
20 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | ;; GNU General Public License for more details. | |
22 | ||
23 | ;; You should have received a copy of the GNU General Public License | |
24 | ;; along with GNU Emacs; see the file COPYING. If not, write to the | |
086add15 LK |
25 | ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
26 | ;; Boston, MA 02110-1301, USA. | |
a14fb2b1 RS |
27 | |
28 | ;;; Commentary: | |
1ffece3a | 29 | |
2a92dc25 RS |
30 | ;; Winner mode is a global minor mode that records the changes in the |
31 | ;; window configuration (i.e. how the frames are partitioned into | |
ff287a27 | 32 | ;; windows) so that the changes can be "undone" using the command |
2a92dc25 | 33 | ;; `winner-undo'. By default this one is bound to the key sequence |
8eae13fd JB |
34 | ;; ctrl-c left. If you change your mind (while undoing), you can |
35 | ;; press ctrl-c right (calling `winner-redo'). Even though it uses | |
2a92dc25 RS |
36 | ;; some features of Emacs20.3, winner.el should also work with |
37 | ;; Emacs19.34 and XEmacs20, provided that the installed version of | |
38 | ;; custom is not obsolete. | |
39 | ||
4a81d892 RS |
40 | ;; Winner mode was improved August 1998. |
41 | ;; Further improvements February 2002. | |
ff287a27 RS |
42 | |
43 | ;;; Code: | |
44 | ||
45 | (eval-when-compile | |
63f6b2c4 | 46 | (require 'cl)) |
ff287a27 | 47 | |
6babdce9 SM |
48 | |
49 | (defmacro winner-active-region () | |
50 | (if (fboundp 'region-active-p) | |
51 | '(region-active-p) | |
52 | 'mark-active)) | |
53 | ||
54 | (defsetf winner-active-region () (store) | |
55 | (if (fboundp 'zmacs-activate-region) | |
ff287a27 | 56 | `(if ,store (zmacs-activate-region) |
6babdce9 SM |
57 | (zmacs-deactivate-region)) |
58 | `(setq mark-active ,store))) | |
a14fb2b1 | 59 | |
6babdce9 SM |
60 | (defalias 'winner-edges |
61 | (if (featurep 'xemacs) 'window-pixel-edges 'window-edges)) | |
62 | (defalias 'winner-window-list | |
63 | (if (featurep 'xemacs) | |
64 | (lambda () (delq (minibuffer-window) (window-list nil 0))) | |
65 | (lambda () (window-list nil 0)))) | |
4a81d892 | 66 | |
1ffece3a | 67 | (require 'ring) |
a14fb2b1 | 68 | |
ed0d58c9 MR |
69 | (unless (fboundp 'defgroup) |
70 | (defmacro defgroup (&rest rest))) | |
71 | ||
72 | (defgroup winner nil | |
73 | "Restoring window configurations." | |
74 | :group 'windows) | |
2a92dc25 RS |
75 | |
76 | (unless (fboundp 'defcustom) | |
77 | (defmacro defcustom (symbol &optional initvalue docs &rest rest) | |
78 | (list 'defvar symbol initvalue docs))) | |
79 | ||
63f6b2c4 | 80 | ;;;###autoload |
4f850b26 | 81 | (defcustom winner-mode nil |
f7285f0f | 82 | "Toggle Winner mode. |
e96394e9 DL |
83 | Setting this variable directly does not take effect; |
84 | use either \\[customize] or the function `winner-mode'." | |
6babdce9 | 85 | :set #'(lambda (symbol value) (funcall symbol (or value 0))) |
4f850b26 | 86 | :initialize 'custom-initialize-default |
2a92dc25 RS |
87 | :type 'boolean |
88 | :group 'winner | |
4f850b26 DL |
89 | :require 'winner) |
90 | ||
91 | (defcustom winner-dont-bind-my-keys nil | |
92 | "If non-nil: Do not use `winner-mode-map' in Winner mode." | |
2a92dc25 | 93 | :type 'boolean |
4f850b26 | 94 | :group 'winner) |
a14fb2b1 | 95 | |
2a92dc25 RS |
96 | (defcustom winner-ring-size 200 |
97 | "Maximum number of stored window configurations per frame." | |
98 | :type 'integer | |
4f850b26 | 99 | :group 'winner) |
a14fb2b1 | 100 | |
4a81d892 | 101 | (defcustom winner-boring-buffers '("*Completions*") |
f7285f0f | 102 | "`winner-undo' will not restore windows displaying any of these buffers. |
4a81d892 RS |
103 | You may want to include buffer names such as *Help*, *Apropos*, |
104 | *Buffer List*, *info* and *Compile-Log*." | |
105 | :type '(repeat string) | |
106 | :group 'winner) | |
107 | ||
108 | ||
109 | ||
a14fb2b1 | 110 | |
f7285f0f JB |
111 | \f |
112 | ;;;; Saving old configurations (internal variables and subroutines) | |
a14fb2b1 | 113 | |
2a92dc25 | 114 | |
4a81d892 | 115 | ;;; Current configuration |
ff287a27 | 116 | |
4a81d892 RS |
117 | ;; List the windows according to their edges. |
118 | (defun winner-sorted-window-list () | |
119 | (sort (winner-window-list) | |
120 | (lambda (x y) | |
121 | (loop for a in (winner-edges x) | |
122 | for b in (winner-edges y) | |
123 | while (= a b) | |
124 | finally return (< a b))))) | |
125 | ||
f1180544 | 126 | (defun winner-win-data () |
4a81d892 RS |
127 | ;; Essential properties of the windows in the selected frame. |
128 | (loop for win in (winner-sorted-window-list) | |
129 | collect (cons (winner-edges win) (window-buffer win)))) | |
f1180544 | 130 | |
ff287a27 | 131 | ;; This variable is updated with the current window configuration |
4a81d892 | 132 | ;; every time it changes. |
ff287a27 RS |
133 | (defvar winner-currents nil) |
134 | ||
135 | ;; The current configuration (+ the buffers involved). | |
136 | (defsubst winner-conf () | |
4a81d892 RS |
137 | (cons (current-window-configuration) |
138 | (winner-win-data))) | |
139 | ||
ff287a27 RS |
140 | |
141 | ;; Save current configuration. | |
4a81d892 | 142 | ;; (Called below by `winner-save-old-configurations'). |
ff287a27 RS |
143 | (defun winner-remember () |
144 | (let ((entry (assq (selected-frame) winner-currents))) | |
145 | (if entry (setcdr entry (winner-conf)) | |
146 | (push (cons (selected-frame) (winner-conf)) | |
147 | winner-currents)))) | |
148 | ||
149 | ;; Consult `winner-currents'. | |
150 | (defun winner-configuration (&optional frame) | |
151 | (or (cdr (assq (or frame (selected-frame)) winner-currents)) | |
152 | (letf (((selected-frame) frame)) | |
153 | (winner-conf)))) | |
154 | ||
2a92dc25 RS |
155 | |
156 | ||
4a81d892 RS |
157 | ;;; Saved configurations |
158 | ||
2a92dc25 RS |
159 | ;; This variable contains the window cofiguration rings. |
160 | ;; The key in this alist is the frame. | |
1ffece3a | 161 | (defvar winner-ring-alist nil) |
a14fb2b1 | 162 | |
2a92dc25 | 163 | ;; Find the right ring. If it does not exist, create one. |
1ffece3a RS |
164 | (defsubst winner-ring (frame) |
165 | (or (cdr (assq frame winner-ring-alist)) | |
f7285f0f JB |
166 | (let ((ring (make-ring winner-ring-size))) |
167 | (ring-insert ring (winner-configuration frame)) | |
168 | (push (cons frame ring) winner-ring-alist) | |
169 | ring))) | |
2a92dc25 | 170 | |
f7285f0f JB |
171 | \f |
172 | ;; If the same command is called several times in a row, | |
ff287a27 RS |
173 | ;; we only save one window configuration. |
174 | (defvar winner-last-command nil) | |
a14fb2b1 | 175 | |
ff287a27 RS |
176 | ;; Frames affected by the previous command. |
177 | (defvar winner-last-frames nil) | |
a14fb2b1 | 178 | |
59c2dcf4 | 179 | |
f7285f0f | 180 | (defsubst winner-equal (a b) |
4a81d892 RS |
181 | "Check whether two Winner configurations (as produced by |
182 | `winner-conf') are equal." | |
183 | (equal (cdr a) (cdr b))) | |
59c2dcf4 GM |
184 | |
185 | ||
ff287a27 | 186 | ;; Save the current window configuration, if it has changed. |
4a81d892 | 187 | ;; If so return frame, otherwise return nil. |
ff287a27 RS |
188 | (defun winner-insert-if-new (frame) |
189 | (unless (or (memq frame winner-last-frames) | |
190 | (eq this-command 'winner-redo)) | |
191 | (let ((conf (winner-configuration frame)) | |
192 | (ring (winner-ring frame))) | |
193 | (when (and (not (ring-empty-p ring)) | |
194 | (winner-equal conf (ring-ref ring 0))) | |
4a81d892 RS |
195 | ;; When the previous configuration was very similar, |
196 | ;; keep only the latest. | |
ff287a27 RS |
197 | (ring-remove ring 0)) |
198 | (ring-insert ring conf) | |
199 | (push frame winner-last-frames) | |
200 | frame))) | |
201 | ||
4a81d892 RS |
202 | |
203 | ||
204 | ;;; Hooks | |
205 | ||
ff287a27 RS |
206 | ;; Frames affected by the current command. |
207 | (defvar winner-modified-list nil) | |
208 | ||
209 | ;; Called whenever the window configuration changes | |
210 | ;; (a `window-configuration-change-hook'). | |
1ffece3a | 211 | (defun winner-change-fun () |
4a81d892 RS |
212 | (unless (or (memq (selected-frame) winner-modified-list) |
213 | (/= 0 (minibuffer-depth))) | |
2a92dc25 | 214 | (push (selected-frame) winner-modified-list))) |
a14fb2b1 | 215 | |
4a81d892 RS |
216 | ;; A `post-command-hook' for emacsen with |
217 | ;; `window-configuration-change-hook'. | |
ff287a27 | 218 | (defun winner-save-old-configurations () |
4a81d892 RS |
219 | (when (zerop (minibuffer-depth)) |
220 | (unless (eq this-command winner-last-command) | |
221 | (setq winner-last-frames nil) | |
222 | (setq winner-last-command this-command)) | |
223 | (dolist (frame winner-modified-list) | |
224 | (winner-insert-if-new frame)) | |
225 | (setq winner-modified-list nil) | |
226 | (winner-remember))) | |
227 | ||
228 | ;; A `minibuffer-setup-hook'. | |
2a92dc25 | 229 | (defun winner-save-unconditionally () |
ff287a27 RS |
230 | (unless (eq this-command winner-last-command) |
231 | (setq winner-last-frames nil) | |
232 | (setq winner-last-command this-command)) | |
233 | (winner-insert-if-new (selected-frame)) | |
234 | (winner-remember)) | |
2a92dc25 | 235 | |
4a81d892 RS |
236 | ;; A `post-command-hook' for other emacsen. |
237 | ;; Also called by `winner-undo' before "undoing". | |
238 | (defun winner-save-conditionally () | |
239 | (when (zerop (minibuffer-depth)) | |
240 | (winner-save-unconditionally))) | |
2a92dc25 | 241 | |
2a92dc25 | 242 | |
2a92dc25 | 243 | |
f7285f0f JB |
244 | \f |
245 | ;;;; Restoring configurations | |
ff287a27 RS |
246 | |
247 | ;; Works almost as `set-window-configuration', | |
4a81d892 RS |
248 | ;; but does not change the contents or the size of the minibuffer, |
249 | ;; and tries to preserve the selected window. | |
ff287a27 | 250 | (defun winner-set-conf (winconf) |
4a81d892 RS |
251 | (let* ((miniwin (minibuffer-window)) |
252 | (chosen (selected-window)) | |
253 | (minisize (window-height miniwin))) | |
254 | (letf (((window-buffer miniwin)) | |
255 | ((window-point miniwin))) | |
256 | (set-window-configuration winconf)) | |
257 | (cond | |
258 | ((window-live-p chosen) (select-window chosen)) | |
259 | ((window-minibuffer-p (selected-window)) | |
260 | (other-window 1))) | |
f1180544 | 261 | (when (/= minisize (window-height miniwin)) |
4a81d892 RS |
262 | (letf (((selected-window) miniwin) ) |
263 | (setf (window-height) minisize))))) | |
264 | ||
ff287a27 RS |
265 | |
266 | ||
267 | (defvar winner-point-alist nil) | |
268 | ;; `set-window-configuration' restores old points and marks. This is | |
269 | ;; not what we want, so we make a list of the "real" (i.e. new) points | |
270 | ;; and marks before undoing window configurations. | |
271 | ;; | |
272 | ;; Format of entries: (buffer (mark . mark-active) (window . point) ..) | |
273 | ||
274 | (defun winner-make-point-alist () | |
275 | (letf (((current-buffer))) | |
276 | (loop with alist | |
4a81d892 | 277 | for win in (winner-window-list) |
f1180544 | 278 | for entry = |
4a81d892 RS |
279 | (or (assq (window-buffer win) alist) |
280 | (car (push (list (set-buffer (window-buffer win)) | |
281 | (cons (mark t) (winner-active-region))) | |
282 | alist))) | |
283 | do (push (cons win (window-point win)) | |
284 | (cddr entry)) | |
ff287a27 RS |
285 | finally return alist))) |
286 | ||
ff287a27 RS |
287 | (defun winner-get-point (buf win) |
288 | ;; Consult (and possibly extend) `winner-point-alist'. | |
4a81d892 | 289 | ;; Returns nil iff buf no longer exists. |
ff287a27 RS |
290 | (when (buffer-name buf) |
291 | (let ((entry (assq buf winner-point-alist))) | |
292 | (cond | |
293 | (entry | |
294 | (or (cdr (assq win (cddr entry))) | |
295 | (cdr (assq nil (cddr entry))) | |
296 | (letf (((current-buffer) buf)) | |
297 | (push (cons nil (point)) (cddr entry)) | |
298 | (point)))) | |
299 | (t (letf (((current-buffer) buf)) | |
300 | (push (list buf | |
301 | (cons (mark t) (winner-active-region)) | |
302 | (cons nil (point))) | |
303 | winner-point-alist) | |
304 | (point))))))) | |
305 | ||
f7285f0f JB |
306 | \f |
307 | ;; Make sure point does not end up in the minibuffer and delete | |
4a81d892 RS |
308 | ;; windows displaying dead or boring buffers |
309 | ;; (c.f. `winner-boring-buffers'). Return nil iff all the windows | |
310 | ;; should be deleted. Preserve correct points and marks. | |
1ffece3a | 311 | (defun winner-set (conf) |
4a81d892 | 312 | ;; For the format of `conf', see `winner-conf'. |
ff287a27 | 313 | (let* ((buffers nil) |
4a81d892 RS |
314 | (alive |
315 | ;; Possibly update `winner-point-alist' | |
316 | (loop for buf in (mapcar 'cdr (cdr conf)) | |
ff287a27 RS |
317 | for pos = (winner-get-point buf nil) |
318 | if (and pos (not (memq buf buffers))) | |
319 | do (push buf buffers) | |
320 | collect pos))) | |
2a92dc25 | 321 | (winner-set-conf (car conf)) |
4a81d892 RS |
322 | (let (xwins) ; to be deleted |
323 | ||
324 | ;; Restore points | |
325 | (dolist (win (winner-sorted-window-list)) | |
326 | (unless (and (pop alive) | |
327 | (setf (window-point win) | |
328 | (winner-get-point (window-buffer win) win)) | |
329 | (not (member (buffer-name (window-buffer win)) | |
330 | winner-boring-buffers))) | |
331 | (push win xwins))) ; delete this window | |
332 | ||
333 | ;; Restore marks | |
ff287a27 | 334 | (letf (((current-buffer))) |
f1180544 | 335 | (loop for buf in buffers |
ff287a27 RS |
336 | for entry = (cadr (assq buf winner-point-alist)) |
337 | do (progn (set-buffer buf) | |
338 | (set-mark (car entry)) | |
339 | (setf (winner-active-region) (cdr entry))))) | |
4a81d892 | 340 | ;; Delete windows, whose buffers are dead or boring. |
ff287a27 RS |
341 | ;; Return t if this is still a possible configuration. |
342 | (or (null xwins) | |
4a81d892 RS |
343 | (progn |
344 | (mapc 'delete-window (cdr xwins)) ; delete all but one | |
345 | (unless (one-window-p t) | |
346 | (delete-window (car xwins)) | |
347 | t)))))) | |
ff287a27 RS |
348 | |
349 | ||
350 | ||
351 | ;;;; Winner mode (a minor mode) | |
a14fb2b1 | 352 | |
4f850b26 DL |
353 | (defcustom winner-mode-hook nil |
354 | "Functions to run whenever Winner mode is turned on." | |
355 | :type 'hook | |
78900bc3 | 356 | :group 'winner) |
a14fb2b1 | 357 | |
78900bc3 | 358 | (defcustom winner-mode-leave-hook nil |
4f850b26 DL |
359 | "Functions to run whenever Winner mode is turned off." |
360 | :type 'hook | |
78900bc3 | 361 | :group 'winner) |
1ffece3a | 362 | |
6babdce9 SM |
363 | (defvar winner-mode-map |
364 | (let ((map (make-sparse-keymap))) | |
365 | (define-key map [(control c) left] 'winner-undo) | |
366 | (define-key map [(control c) right] 'winner-redo) | |
367 | map) | |
368 | "Keymap for Winner mode.") | |
21f3d1d3 | 369 | |
4a81d892 | 370 | ;; Check if `window-configuration-change-hook' is working. |
2a92dc25 RS |
371 | (defun winner-hook-installed-p () |
372 | (save-window-excursion | |
373 | (let ((winner-var nil) | |
374 | (window-configuration-change-hook | |
375 | '((lambda () (setq winner-var t))))) | |
376 | (split-window) | |
377 | winner-var))) | |
378 | ||
63f6b2c4 DL |
379 | \f |
380 | ;;;###autoload | |
a14fb2b1 RS |
381 | (defun winner-mode (&optional arg) |
382 | "Toggle Winner mode. | |
383 | With arg, turn Winner mode on if and only if arg is positive." | |
384 | (interactive "P") | |
385 | (let ((on-p (if arg (> (prefix-numeric-value arg) 0) | |
386 | (not winner-mode)))) | |
387 | (cond | |
1ffece3a | 388 | ;; Turn mode on |
f1180544 | 389 | (on-p |
1ffece3a | 390 | (setq winner-mode t) |
2a92dc25 RS |
391 | (cond |
392 | ((winner-hook-installed-p) | |
393 | (add-hook 'window-configuration-change-hook 'winner-change-fun) | |
6babdce9 | 394 | (add-hook 'post-command-hook 'winner-save-old-configurations)) |
4a81d892 RS |
395 | (t (add-hook 'post-command-hook 'winner-save-conditionally))) |
396 | (add-hook 'minibuffer-setup-hook 'winner-save-unconditionally) | |
1ffece3a | 397 | (setq winner-modified-list (frame-list)) |
ff287a27 | 398 | (winner-save-old-configurations) |
4a81d892 RS |
399 | (run-hooks 'winner-mode-hook) |
400 | (when (interactive-p) (message "Winner mode enabled"))) | |
1ffece3a RS |
401 | ;; Turn mode off |
402 | (winner-mode | |
403 | (setq winner-mode nil) | |
2a92dc25 | 404 | (remove-hook 'window-configuration-change-hook 'winner-change-fun) |
ff287a27 | 405 | (remove-hook 'post-command-hook 'winner-save-old-configurations) |
4a81d892 RS |
406 | (remove-hook 'post-command-hook 'winner-save-conditionally) |
407 | (remove-hook 'minibuffer-setup-hook 'winner-save-unconditionally) | |
408 | (run-hooks 'winner-mode-leave-hook) | |
409 | (when (interactive-p) (message "Winner mode disabled")))))) | |
a14fb2b1 | 410 | |
4a81d892 | 411 | ;; Inspired by undo (simple.el) |
e0a81650 | 412 | |
ff287a27 RS |
413 | (defvar winner-undo-frame nil) |
414 | ||
e0a81650 | 415 | (defvar winner-pending-undo-ring nil |
f7285f0f | 416 | "The ring currently used by `winner-undo'.") |
e0a81650 RS |
417 | (defvar winner-undo-counter nil) |
418 | (defvar winner-undone-data nil) ; There confs have been passed. | |
419 | ||
ff287a27 | 420 | (defun winner-undo () |
1ffece3a | 421 | "Switch back to an earlier window configuration saved by Winner mode. |
ff287a27 RS |
422 | In other words, \"undo\" changes in window configuration." |
423 | (interactive) | |
1ffece3a RS |
424 | (cond |
425 | ((not winner-mode) (error "Winner mode is turned off")) | |
ff287a27 RS |
426 | (t (unless (and (eq last-command 'winner-undo) |
427 | (eq winner-undo-frame (selected-frame))) | |
4a81d892 | 428 | (winner-save-conditionally) ; current configuration->stack |
ff287a27 RS |
429 | (setq winner-undo-frame (selected-frame)) |
430 | (setq winner-point-alist (winner-make-point-alist)) | |
431 | (setq winner-pending-undo-ring (winner-ring (selected-frame))) | |
432 | (setq winner-undo-counter 0) | |
433 | (setq winner-undone-data (list (winner-win-data)))) | |
434 | (incf winner-undo-counter) ; starting at 1 | |
435 | (when (and (winner-undo-this) | |
436 | (not (window-minibuffer-p (selected-window)))) | |
437 | (message "Winner undo (%d / %d)" | |
438 | winner-undo-counter | |
439 | (1- (ring-length winner-pending-undo-ring))))))) | |
f1180544 JB |
440 | |
441 | ||
442 | ||
f7285f0f JB |
443 | \f |
444 | (defun winner-undo-this () ; The heart of winner undo. | |
f1180544 | 445 | (loop |
ff287a27 RS |
446 | (cond |
447 | ((>= winner-undo-counter (ring-length winner-pending-undo-ring)) | |
448 | (message "No further window configuration undo information") | |
449 | (return nil)) | |
f1180544 | 450 | |
ff287a27 RS |
451 | ((and ; If possible configuration |
452 | (winner-set (ring-ref winner-pending-undo-ring | |
453 | winner-undo-counter)) | |
4a81d892 | 454 | ; .. and new configuration |
ff287a27 RS |
455 | (let ((data (winner-win-data))) |
456 | (and (not (member data winner-undone-data)) | |
457 | (push data winner-undone-data)))) | |
4a81d892 RS |
458 | (return t)) ; .. then everything is fine. |
459 | (t ;; Otherwise, discharge it (and try the next one). | |
ff287a27 | 460 | (ring-remove winner-pending-undo-ring winner-undo-counter))))) |
f1180544 | 461 | |
ff287a27 RS |
462 | |
463 | (defun winner-redo () ; If you change your mind. | |
1ffece3a RS |
464 | "Restore a more recent window configuration saved by Winner mode." |
465 | (interactive) | |
466 | (cond | |
467 | ((eq last-command 'winner-undo) | |
1ffece3a | 468 | (winner-set |
4a81d892 RS |
469 | (if (zerop (minibuffer-depth)) |
470 | (ring-remove winner-pending-undo-ring 0) | |
471 | (ring-ref winner-pending-undo-ring 0))) | |
ff287a27 RS |
472 | (unless (eq (selected-window) (minibuffer-window)) |
473 | (message "Winner undid undo"))) | |
f7285f0f | 474 | (t (error "Previous command was not a `winner-undo'")))) |
4a81d892 | 475 | |
ff287a27 | 476 | ;;; To be evaluated when the package is loaded: |
2a92dc25 | 477 | |
a14fb2b1 RS |
478 | (unless (or (assq 'winner-mode minor-mode-map-alist) |
479 | winner-dont-bind-my-keys) | |
480 | (push (cons 'winner-mode winner-mode-map) | |
481 | minor-mode-map-alist)) | |
482 | ||
a14fb2b1 | 483 | (provide 'winner) |
6babdce9 | 484 | ;; arch-tag: 686d1c1b-010e-42ca-a192-b5685112418f |
21f3d1d3 | 485 | ;;; winner.el ends here |