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ff287a27 | 1 | ;;; winner.el --- Restore old window configurations |
a14fb2b1 | 2 | |
0d30b337 | 3 | ;; Copyright (C) 1997, 1998, 2001, 2002, 2003, 2004, |
d7a0267c | 4 | ;; 2005, 2006, 2007 Free Software Foundation. Inc. |
a14fb2b1 | 5 | |
e27e5e07 | 6 | ;; Author: Ivar Rummelhoff <ivarru@math.uio.no> |
a14fb2b1 | 7 | ;; Created: 27 Feb 1997 |
63f6b2c4 | 8 | ;; Keywords: convenience frames |
a14fb2b1 | 9 | |
21f3d1d3 RS |
10 | ;; This file is part of GNU Emacs. |
11 | ||
12 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
a14fb2b1 | 13 | ;; it under the terms of the GNU General Public License as published by |
b4aa6026 | 14 | ;; the Free Software Foundation; either version 3, or (at your option) |
a14fb2b1 RS |
15 | ;; any later version. |
16 | ||
21f3d1d3 | 17 | ;; GNU Emacs is distributed in the hope that it will be useful, |
a14fb2b1 RS |
18 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
19 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | ;; GNU General Public License for more details. | |
21 | ||
22 | ;; You should have received a copy of the GNU General Public License | |
23 | ;; along with GNU Emacs; see the file COPYING. If not, write to the | |
086add15 LK |
24 | ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
25 | ;; Boston, MA 02110-1301, USA. | |
a14fb2b1 RS |
26 | |
27 | ;;; Commentary: | |
1ffece3a | 28 | |
2a92dc25 RS |
29 | ;; Winner mode is a global minor mode that records the changes in the |
30 | ;; window configuration (i.e. how the frames are partitioned into | |
ff287a27 | 31 | ;; windows) so that the changes can be "undone" using the command |
2a92dc25 | 32 | ;; `winner-undo'. By default this one is bound to the key sequence |
8eae13fd JB |
33 | ;; ctrl-c left. If you change your mind (while undoing), you can |
34 | ;; press ctrl-c right (calling `winner-redo'). Even though it uses | |
2a92dc25 RS |
35 | ;; some features of Emacs20.3, winner.el should also work with |
36 | ;; Emacs19.34 and XEmacs20, provided that the installed version of | |
37 | ;; custom is not obsolete. | |
38 | ||
4a81d892 RS |
39 | ;; Winner mode was improved August 1998. |
40 | ;; Further improvements February 2002. | |
ff287a27 RS |
41 | |
42 | ;;; Code: | |
43 | ||
44 | (eval-when-compile | |
63f6b2c4 | 45 | (require 'cl)) |
ff287a27 | 46 | |
6babdce9 SM |
47 | |
48 | (defmacro winner-active-region () | |
49 | (if (fboundp 'region-active-p) | |
50 | '(region-active-p) | |
51 | 'mark-active)) | |
52 | ||
53 | (defsetf winner-active-region () (store) | |
54 | (if (fboundp 'zmacs-activate-region) | |
ff287a27 | 55 | `(if ,store (zmacs-activate-region) |
6babdce9 SM |
56 | (zmacs-deactivate-region)) |
57 | `(setq mark-active ,store))) | |
a14fb2b1 | 58 | |
6babdce9 SM |
59 | (defalias 'winner-edges |
60 | (if (featurep 'xemacs) 'window-pixel-edges 'window-edges)) | |
61 | (defalias 'winner-window-list | |
62 | (if (featurep 'xemacs) | |
63 | (lambda () (delq (minibuffer-window) (window-list nil 0))) | |
64 | (lambda () (window-list nil 0)))) | |
4a81d892 | 65 | |
1ffece3a | 66 | (require 'ring) |
a14fb2b1 | 67 | |
ed0d58c9 MR |
68 | (unless (fboundp 'defgroup) |
69 | (defmacro defgroup (&rest rest))) | |
70 | ||
71 | (defgroup winner nil | |
72 | "Restoring window configurations." | |
73 | :group 'windows) | |
2a92dc25 RS |
74 | |
75 | (unless (fboundp 'defcustom) | |
76 | (defmacro defcustom (symbol &optional initvalue docs &rest rest) | |
77 | (list 'defvar symbol initvalue docs))) | |
78 | ||
63f6b2c4 | 79 | ;;;###autoload |
4f850b26 | 80 | (defcustom winner-mode nil |
f7285f0f | 81 | "Toggle Winner mode. |
e96394e9 DL |
82 | Setting this variable directly does not take effect; |
83 | use either \\[customize] or the function `winner-mode'." | |
6babdce9 | 84 | :set #'(lambda (symbol value) (funcall symbol (or value 0))) |
4f850b26 | 85 | :initialize 'custom-initialize-default |
2a92dc25 RS |
86 | :type 'boolean |
87 | :group 'winner | |
4f850b26 DL |
88 | :require 'winner) |
89 | ||
90 | (defcustom winner-dont-bind-my-keys nil | |
91 | "If non-nil: Do not use `winner-mode-map' in Winner mode." | |
2a92dc25 | 92 | :type 'boolean |
4f850b26 | 93 | :group 'winner) |
a14fb2b1 | 94 | |
2a92dc25 RS |
95 | (defcustom winner-ring-size 200 |
96 | "Maximum number of stored window configurations per frame." | |
97 | :type 'integer | |
4f850b26 | 98 | :group 'winner) |
a14fb2b1 | 99 | |
4a81d892 | 100 | (defcustom winner-boring-buffers '("*Completions*") |
f7285f0f | 101 | "`winner-undo' will not restore windows displaying any of these buffers. |
4a81d892 RS |
102 | You may want to include buffer names such as *Help*, *Apropos*, |
103 | *Buffer List*, *info* and *Compile-Log*." | |
104 | :type '(repeat string) | |
105 | :group 'winner) | |
106 | ||
107 | ||
108 | ||
a14fb2b1 | 109 | |
f7285f0f JB |
110 | \f |
111 | ;;;; Saving old configurations (internal variables and subroutines) | |
a14fb2b1 | 112 | |
2a92dc25 | 113 | |
4a81d892 | 114 | ;;; Current configuration |
ff287a27 | 115 | |
4a81d892 RS |
116 | ;; List the windows according to their edges. |
117 | (defun winner-sorted-window-list () | |
118 | (sort (winner-window-list) | |
119 | (lambda (x y) | |
120 | (loop for a in (winner-edges x) | |
121 | for b in (winner-edges y) | |
122 | while (= a b) | |
123 | finally return (< a b))))) | |
124 | ||
f1180544 | 125 | (defun winner-win-data () |
4a81d892 RS |
126 | ;; Essential properties of the windows in the selected frame. |
127 | (loop for win in (winner-sorted-window-list) | |
128 | collect (cons (winner-edges win) (window-buffer win)))) | |
f1180544 | 129 | |
ff287a27 | 130 | ;; This variable is updated with the current window configuration |
4a81d892 | 131 | ;; every time it changes. |
ff287a27 RS |
132 | (defvar winner-currents nil) |
133 | ||
134 | ;; The current configuration (+ the buffers involved). | |
135 | (defsubst winner-conf () | |
4a81d892 RS |
136 | (cons (current-window-configuration) |
137 | (winner-win-data))) | |
138 | ||
ff287a27 RS |
139 | |
140 | ;; Save current configuration. | |
4a81d892 | 141 | ;; (Called below by `winner-save-old-configurations'). |
ff287a27 RS |
142 | (defun winner-remember () |
143 | (let ((entry (assq (selected-frame) winner-currents))) | |
144 | (if entry (setcdr entry (winner-conf)) | |
145 | (push (cons (selected-frame) (winner-conf)) | |
146 | winner-currents)))) | |
147 | ||
148 | ;; Consult `winner-currents'. | |
149 | (defun winner-configuration (&optional frame) | |
150 | (or (cdr (assq (or frame (selected-frame)) winner-currents)) | |
151 | (letf (((selected-frame) frame)) | |
152 | (winner-conf)))) | |
153 | ||
2a92dc25 RS |
154 | |
155 | ||
4a81d892 RS |
156 | ;;; Saved configurations |
157 | ||
2a92dc25 RS |
158 | ;; This variable contains the window cofiguration rings. |
159 | ;; The key in this alist is the frame. | |
1ffece3a | 160 | (defvar winner-ring-alist nil) |
a14fb2b1 | 161 | |
2a92dc25 | 162 | ;; Find the right ring. If it does not exist, create one. |
1ffece3a RS |
163 | (defsubst winner-ring (frame) |
164 | (or (cdr (assq frame winner-ring-alist)) | |
f7285f0f JB |
165 | (let ((ring (make-ring winner-ring-size))) |
166 | (ring-insert ring (winner-configuration frame)) | |
167 | (push (cons frame ring) winner-ring-alist) | |
168 | ring))) | |
2a92dc25 | 169 | |
f7285f0f JB |
170 | \f |
171 | ;; If the same command is called several times in a row, | |
ff287a27 RS |
172 | ;; we only save one window configuration. |
173 | (defvar winner-last-command nil) | |
a14fb2b1 | 174 | |
ff287a27 RS |
175 | ;; Frames affected by the previous command. |
176 | (defvar winner-last-frames nil) | |
a14fb2b1 | 177 | |
59c2dcf4 | 178 | |
f7285f0f | 179 | (defsubst winner-equal (a b) |
4a81d892 RS |
180 | "Check whether two Winner configurations (as produced by |
181 | `winner-conf') are equal." | |
182 | (equal (cdr a) (cdr b))) | |
59c2dcf4 GM |
183 | |
184 | ||
ff287a27 | 185 | ;; Save the current window configuration, if it has changed. |
4a81d892 | 186 | ;; If so return frame, otherwise return nil. |
ff287a27 RS |
187 | (defun winner-insert-if-new (frame) |
188 | (unless (or (memq frame winner-last-frames) | |
189 | (eq this-command 'winner-redo)) | |
190 | (let ((conf (winner-configuration frame)) | |
191 | (ring (winner-ring frame))) | |
192 | (when (and (not (ring-empty-p ring)) | |
193 | (winner-equal conf (ring-ref ring 0))) | |
4a81d892 RS |
194 | ;; When the previous configuration was very similar, |
195 | ;; keep only the latest. | |
ff287a27 RS |
196 | (ring-remove ring 0)) |
197 | (ring-insert ring conf) | |
198 | (push frame winner-last-frames) | |
199 | frame))) | |
200 | ||
4a81d892 RS |
201 | |
202 | ||
203 | ;;; Hooks | |
204 | ||
ff287a27 RS |
205 | ;; Frames affected by the current command. |
206 | (defvar winner-modified-list nil) | |
207 | ||
208 | ;; Called whenever the window configuration changes | |
209 | ;; (a `window-configuration-change-hook'). | |
1ffece3a | 210 | (defun winner-change-fun () |
4a81d892 RS |
211 | (unless (or (memq (selected-frame) winner-modified-list) |
212 | (/= 0 (minibuffer-depth))) | |
2a92dc25 | 213 | (push (selected-frame) winner-modified-list))) |
a14fb2b1 | 214 | |
4a81d892 RS |
215 | ;; A `post-command-hook' for emacsen with |
216 | ;; `window-configuration-change-hook'. | |
ff287a27 | 217 | (defun winner-save-old-configurations () |
4a81d892 RS |
218 | (when (zerop (minibuffer-depth)) |
219 | (unless (eq this-command winner-last-command) | |
220 | (setq winner-last-frames nil) | |
221 | (setq winner-last-command this-command)) | |
222 | (dolist (frame winner-modified-list) | |
223 | (winner-insert-if-new frame)) | |
224 | (setq winner-modified-list nil) | |
225 | (winner-remember))) | |
226 | ||
227 | ;; A `minibuffer-setup-hook'. | |
2a92dc25 | 228 | (defun winner-save-unconditionally () |
ff287a27 RS |
229 | (unless (eq this-command winner-last-command) |
230 | (setq winner-last-frames nil) | |
231 | (setq winner-last-command this-command)) | |
232 | (winner-insert-if-new (selected-frame)) | |
233 | (winner-remember)) | |
2a92dc25 | 234 | |
4a81d892 RS |
235 | ;; A `post-command-hook' for other emacsen. |
236 | ;; Also called by `winner-undo' before "undoing". | |
237 | (defun winner-save-conditionally () | |
238 | (when (zerop (minibuffer-depth)) | |
239 | (winner-save-unconditionally))) | |
2a92dc25 | 240 | |
2a92dc25 | 241 | |
2a92dc25 | 242 | |
f7285f0f JB |
243 | \f |
244 | ;;;; Restoring configurations | |
ff287a27 RS |
245 | |
246 | ;; Works almost as `set-window-configuration', | |
4a81d892 RS |
247 | ;; but does not change the contents or the size of the minibuffer, |
248 | ;; and tries to preserve the selected window. | |
ff287a27 | 249 | (defun winner-set-conf (winconf) |
4a81d892 RS |
250 | (let* ((miniwin (minibuffer-window)) |
251 | (chosen (selected-window)) | |
252 | (minisize (window-height miniwin))) | |
253 | (letf (((window-buffer miniwin)) | |
254 | ((window-point miniwin))) | |
255 | (set-window-configuration winconf)) | |
256 | (cond | |
257 | ((window-live-p chosen) (select-window chosen)) | |
258 | ((window-minibuffer-p (selected-window)) | |
259 | (other-window 1))) | |
f1180544 | 260 | (when (/= minisize (window-height miniwin)) |
4a81d892 RS |
261 | (letf (((selected-window) miniwin) ) |
262 | (setf (window-height) minisize))))) | |
263 | ||
ff287a27 RS |
264 | |
265 | ||
266 | (defvar winner-point-alist nil) | |
267 | ;; `set-window-configuration' restores old points and marks. This is | |
268 | ;; not what we want, so we make a list of the "real" (i.e. new) points | |
269 | ;; and marks before undoing window configurations. | |
270 | ;; | |
271 | ;; Format of entries: (buffer (mark . mark-active) (window . point) ..) | |
272 | ||
273 | (defun winner-make-point-alist () | |
274 | (letf (((current-buffer))) | |
275 | (loop with alist | |
4a81d892 | 276 | for win in (winner-window-list) |
f1180544 | 277 | for entry = |
4a81d892 RS |
278 | (or (assq (window-buffer win) alist) |
279 | (car (push (list (set-buffer (window-buffer win)) | |
280 | (cons (mark t) (winner-active-region))) | |
281 | alist))) | |
282 | do (push (cons win (window-point win)) | |
283 | (cddr entry)) | |
ff287a27 RS |
284 | finally return alist))) |
285 | ||
ff287a27 RS |
286 | (defun winner-get-point (buf win) |
287 | ;; Consult (and possibly extend) `winner-point-alist'. | |
5453fa41 | 288 | ;; Returns nil if buf no longer exists. |
ff287a27 RS |
289 | (when (buffer-name buf) |
290 | (let ((entry (assq buf winner-point-alist))) | |
291 | (cond | |
292 | (entry | |
293 | (or (cdr (assq win (cddr entry))) | |
294 | (cdr (assq nil (cddr entry))) | |
295 | (letf (((current-buffer) buf)) | |
296 | (push (cons nil (point)) (cddr entry)) | |
297 | (point)))) | |
298 | (t (letf (((current-buffer) buf)) | |
299 | (push (list buf | |
300 | (cons (mark t) (winner-active-region)) | |
301 | (cons nil (point))) | |
302 | winner-point-alist) | |
303 | (point))))))) | |
304 | ||
f7285f0f JB |
305 | \f |
306 | ;; Make sure point does not end up in the minibuffer and delete | |
4a81d892 | 307 | ;; windows displaying dead or boring buffers |
5453fa41 | 308 | ;; (c.f. `winner-boring-buffers'). Return nil if all the windows |
4a81d892 | 309 | ;; should be deleted. Preserve correct points and marks. |
1ffece3a | 310 | (defun winner-set (conf) |
4a81d892 | 311 | ;; For the format of `conf', see `winner-conf'. |
ff287a27 | 312 | (let* ((buffers nil) |
4a81d892 RS |
313 | (alive |
314 | ;; Possibly update `winner-point-alist' | |
315 | (loop for buf in (mapcar 'cdr (cdr conf)) | |
ff287a27 RS |
316 | for pos = (winner-get-point buf nil) |
317 | if (and pos (not (memq buf buffers))) | |
318 | do (push buf buffers) | |
319 | collect pos))) | |
2a92dc25 | 320 | (winner-set-conf (car conf)) |
4a81d892 RS |
321 | (let (xwins) ; to be deleted |
322 | ||
323 | ;; Restore points | |
324 | (dolist (win (winner-sorted-window-list)) | |
325 | (unless (and (pop alive) | |
326 | (setf (window-point win) | |
327 | (winner-get-point (window-buffer win) win)) | |
328 | (not (member (buffer-name (window-buffer win)) | |
329 | winner-boring-buffers))) | |
330 | (push win xwins))) ; delete this window | |
331 | ||
332 | ;; Restore marks | |
ff287a27 | 333 | (letf (((current-buffer))) |
f1180544 | 334 | (loop for buf in buffers |
ff287a27 RS |
335 | for entry = (cadr (assq buf winner-point-alist)) |
336 | do (progn (set-buffer buf) | |
337 | (set-mark (car entry)) | |
338 | (setf (winner-active-region) (cdr entry))))) | |
4a81d892 | 339 | ;; Delete windows, whose buffers are dead or boring. |
ff287a27 RS |
340 | ;; Return t if this is still a possible configuration. |
341 | (or (null xwins) | |
4a81d892 RS |
342 | (progn |
343 | (mapc 'delete-window (cdr xwins)) ; delete all but one | |
344 | (unless (one-window-p t) | |
345 | (delete-window (car xwins)) | |
346 | t)))))) | |
ff287a27 RS |
347 | |
348 | ||
349 | ||
350 | ;;;; Winner mode (a minor mode) | |
a14fb2b1 | 351 | |
4f850b26 DL |
352 | (defcustom winner-mode-hook nil |
353 | "Functions to run whenever Winner mode is turned on." | |
354 | :type 'hook | |
78900bc3 | 355 | :group 'winner) |
a14fb2b1 | 356 | |
78900bc3 | 357 | (defcustom winner-mode-leave-hook nil |
4f850b26 DL |
358 | "Functions to run whenever Winner mode is turned off." |
359 | :type 'hook | |
78900bc3 | 360 | :group 'winner) |
1ffece3a | 361 | |
6babdce9 SM |
362 | (defvar winner-mode-map |
363 | (let ((map (make-sparse-keymap))) | |
364 | (define-key map [(control c) left] 'winner-undo) | |
365 | (define-key map [(control c) right] 'winner-redo) | |
366 | map) | |
367 | "Keymap for Winner mode.") | |
21f3d1d3 | 368 | |
4a81d892 | 369 | ;; Check if `window-configuration-change-hook' is working. |
2a92dc25 RS |
370 | (defun winner-hook-installed-p () |
371 | (save-window-excursion | |
372 | (let ((winner-var nil) | |
373 | (window-configuration-change-hook | |
374 | '((lambda () (setq winner-var t))))) | |
375 | (split-window) | |
376 | winner-var))) | |
377 | ||
63f6b2c4 DL |
378 | \f |
379 | ;;;###autoload | |
a14fb2b1 RS |
380 | (defun winner-mode (&optional arg) |
381 | "Toggle Winner mode. | |
382 | With arg, turn Winner mode on if and only if arg is positive." | |
383 | (interactive "P") | |
384 | (let ((on-p (if arg (> (prefix-numeric-value arg) 0) | |
385 | (not winner-mode)))) | |
386 | (cond | |
1ffece3a | 387 | ;; Turn mode on |
f1180544 | 388 | (on-p |
1ffece3a | 389 | (setq winner-mode t) |
2a92dc25 RS |
390 | (cond |
391 | ((winner-hook-installed-p) | |
392 | (add-hook 'window-configuration-change-hook 'winner-change-fun) | |
6babdce9 | 393 | (add-hook 'post-command-hook 'winner-save-old-configurations)) |
4a81d892 RS |
394 | (t (add-hook 'post-command-hook 'winner-save-conditionally))) |
395 | (add-hook 'minibuffer-setup-hook 'winner-save-unconditionally) | |
1ffece3a | 396 | (setq winner-modified-list (frame-list)) |
ff287a27 | 397 | (winner-save-old-configurations) |
4a81d892 RS |
398 | (run-hooks 'winner-mode-hook) |
399 | (when (interactive-p) (message "Winner mode enabled"))) | |
1ffece3a RS |
400 | ;; Turn mode off |
401 | (winner-mode | |
402 | (setq winner-mode nil) | |
2a92dc25 | 403 | (remove-hook 'window-configuration-change-hook 'winner-change-fun) |
ff287a27 | 404 | (remove-hook 'post-command-hook 'winner-save-old-configurations) |
4a81d892 RS |
405 | (remove-hook 'post-command-hook 'winner-save-conditionally) |
406 | (remove-hook 'minibuffer-setup-hook 'winner-save-unconditionally) | |
407 | (run-hooks 'winner-mode-leave-hook) | |
408 | (when (interactive-p) (message "Winner mode disabled")))))) | |
a14fb2b1 | 409 | |
4a81d892 | 410 | ;; Inspired by undo (simple.el) |
e0a81650 | 411 | |
ff287a27 RS |
412 | (defvar winner-undo-frame nil) |
413 | ||
e0a81650 | 414 | (defvar winner-pending-undo-ring nil |
f7285f0f | 415 | "The ring currently used by `winner-undo'.") |
e0a81650 RS |
416 | (defvar winner-undo-counter nil) |
417 | (defvar winner-undone-data nil) ; There confs have been passed. | |
418 | ||
ff287a27 | 419 | (defun winner-undo () |
1ffece3a | 420 | "Switch back to an earlier window configuration saved by Winner mode. |
ff287a27 RS |
421 | In other words, \"undo\" changes in window configuration." |
422 | (interactive) | |
1ffece3a RS |
423 | (cond |
424 | ((not winner-mode) (error "Winner mode is turned off")) | |
ff287a27 RS |
425 | (t (unless (and (eq last-command 'winner-undo) |
426 | (eq winner-undo-frame (selected-frame))) | |
4a81d892 | 427 | (winner-save-conditionally) ; current configuration->stack |
ff287a27 RS |
428 | (setq winner-undo-frame (selected-frame)) |
429 | (setq winner-point-alist (winner-make-point-alist)) | |
430 | (setq winner-pending-undo-ring (winner-ring (selected-frame))) | |
431 | (setq winner-undo-counter 0) | |
432 | (setq winner-undone-data (list (winner-win-data)))) | |
433 | (incf winner-undo-counter) ; starting at 1 | |
434 | (when (and (winner-undo-this) | |
435 | (not (window-minibuffer-p (selected-window)))) | |
436 | (message "Winner undo (%d / %d)" | |
437 | winner-undo-counter | |
438 | (1- (ring-length winner-pending-undo-ring))))))) | |
f1180544 JB |
439 | |
440 | ||
441 | ||
f7285f0f JB |
442 | \f |
443 | (defun winner-undo-this () ; The heart of winner undo. | |
f1180544 | 444 | (loop |
ff287a27 RS |
445 | (cond |
446 | ((>= winner-undo-counter (ring-length winner-pending-undo-ring)) | |
447 | (message "No further window configuration undo information") | |
448 | (return nil)) | |
f1180544 | 449 | |
ff287a27 RS |
450 | ((and ; If possible configuration |
451 | (winner-set (ring-ref winner-pending-undo-ring | |
452 | winner-undo-counter)) | |
4a81d892 | 453 | ; .. and new configuration |
ff287a27 RS |
454 | (let ((data (winner-win-data))) |
455 | (and (not (member data winner-undone-data)) | |
456 | (push data winner-undone-data)))) | |
4a81d892 RS |
457 | (return t)) ; .. then everything is fine. |
458 | (t ;; Otherwise, discharge it (and try the next one). | |
ff287a27 | 459 | (ring-remove winner-pending-undo-ring winner-undo-counter))))) |
f1180544 | 460 | |
ff287a27 RS |
461 | |
462 | (defun winner-redo () ; If you change your mind. | |
1ffece3a RS |
463 | "Restore a more recent window configuration saved by Winner mode." |
464 | (interactive) | |
465 | (cond | |
466 | ((eq last-command 'winner-undo) | |
1ffece3a | 467 | (winner-set |
4a81d892 RS |
468 | (if (zerop (minibuffer-depth)) |
469 | (ring-remove winner-pending-undo-ring 0) | |
470 | (ring-ref winner-pending-undo-ring 0))) | |
ff287a27 RS |
471 | (unless (eq (selected-window) (minibuffer-window)) |
472 | (message "Winner undid undo"))) | |
f7285f0f | 473 | (t (error "Previous command was not a `winner-undo'")))) |
4a81d892 | 474 | |
ff287a27 | 475 | ;;; To be evaluated when the package is loaded: |
2a92dc25 | 476 | |
a14fb2b1 RS |
477 | (unless (or (assq 'winner-mode minor-mode-map-alist) |
478 | winner-dont-bind-my-keys) | |
479 | (push (cons 'winner-mode winner-mode-map) | |
480 | minor-mode-map-alist)) | |
481 | ||
a14fb2b1 | 482 | (provide 'winner) |
6babdce9 | 483 | ;; arch-tag: 686d1c1b-010e-42ca-a192-b5685112418f |
21f3d1d3 | 484 | ;;; winner.el ends here |