Commit | Line | Data |
---|---|---|
235aa29b ER |
1 | ;;; menu-bar.el --- define a default menu bar. |
2 | ||
3 | ;; Author: RMS | |
b7f66977 | 4 | ;; Keywords: internal |
235aa29b | 5 | |
f8c25f1b | 6 | ;; Copyright (C) 1993, 1994, 1995 Free Software Foundation, Inc. |
1db87953 RS |
7 | |
8 | ;; This file is part of GNU Emacs. | |
9 | ||
10 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
11 | ;; it under the terms of the GNU General Public License as published by | |
12 | ;; the Free Software Foundation; either version 2, or (at your option) | |
13 | ;; any later version. | |
14 | ||
15 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
16 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | ;; GNU General Public License for more details. | |
19 | ||
20 | ;; You should have received a copy of the GNU General Public License | |
21 | ;; along with GNU Emacs; see the file COPYING. If not, write to | |
22 | ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. | |
23 | ||
235aa29b | 24 | ;;; Code: |
1db87953 | 25 | |
b132f2b1 RM |
26 | ;; Don't clobber an existing menu-bar keymap, to preserve any menu-bar key |
27 | ;; definitions made in loaddefs.el. | |
28 | (or (lookup-key global-map [menu-bar]) | |
29 | (define-key global-map [menu-bar] (make-sparse-keymap "menu-bar"))) | |
22390f50 | 30 | (defvar menu-bar-help-menu (make-sparse-keymap "Help")) |
ffbdd83d RS |
31 | |
32 | ;; Force Help item to come last, after the major mode's own items. | |
da183f87 | 33 | (setq menu-bar-final-items '(help)) |
ffbdd83d | 34 | |
da183f87 | 35 | (define-key global-map [menu-bar help] (cons "Help" menu-bar-help-menu)) |
ffbdd83d RS |
36 | (defvar menu-bar-search-menu (make-sparse-keymap "Search")) |
37 | (define-key global-map [menu-bar search] (cons "Search" menu-bar-search-menu)) | |
22390f50 | 38 | (defvar menu-bar-edit-menu (make-sparse-keymap "Edit")) |
40954111 | 39 | (define-key global-map [menu-bar edit] (cons "Edit" menu-bar-edit-menu)) |
ffbdd83d RS |
40 | (defvar menu-bar-tools-menu (make-sparse-keymap "Tools")) |
41 | (define-key global-map [menu-bar tools] (cons "Tools" menu-bar-tools-menu)) | |
42 | (defvar menu-bar-files-menu (make-sparse-keymap "Files")) | |
43 | (define-key global-map [menu-bar files] (cons "Files" menu-bar-files-menu)) | |
9bb8e471 | 44 | \f |
9dcdc43d RS |
45 | (defvar vc-menu-map (make-sparse-keymap "Version Control")) |
46 | ||
e1726722 | 47 | (define-key menu-bar-tools-menu [calendar] '("Display Calendar" . calendar)) |
ffbdd83d RS |
48 | (define-key menu-bar-tools-menu [rmail] '("Read Mail" . rmail)) |
49 | (define-key menu-bar-tools-menu [gnus] '("Read Net News" . gnus)) | |
50 | ||
51 | (define-key menu-bar-tools-menu [separator-vc] | |
52 | '("--")) | |
53 | ||
54 | (define-key menu-bar-tools-menu [vc-menu] | |
55 | (cons "Version Control" vc-menu-map)) | |
9bb8e471 | 56 | |
ffbdd83d | 57 | (define-key menu-bar-tools-menu [separator-compare] |
9bb8e471 RS |
58 | '("--")) |
59 | ||
ffbdd83d | 60 | (define-key menu-bar-tools-menu [epatch] |
080ac1ac | 61 | '("Apply Patch" . menu-bar-epatch-menu)) |
ffbdd83d | 62 | (define-key menu-bar-tools-menu [ediff-merge] |
5438ecd3 | 63 | '("Merge" . menu-bar-ediff-merge-menu)) |
ffbdd83d | 64 | (define-key menu-bar-tools-menu [ediff] |
40a8cde1 | 65 | '("Compare" . menu-bar-ediff-menu)) |
9bb8e471 | 66 | |
ffbdd83d | 67 | (define-key menu-bar-tools-menu [separator-print] |
9bb8e471 RS |
68 | '("--")) |
69 | ||
ffbdd83d RS |
70 | (put 'print-region 'menu-enable 'mark-active) |
71 | (put 'ps-print-region-with-faces 'menu-enable 'mark-active) | |
72 | ||
73 | (define-key menu-bar-tools-menu [ps-print-region] | |
74 | '("Postscript Print Region" . ps-print-region-with-faces)) | |
75 | (define-key menu-bar-tools-menu [ps-print-buffer] | |
76 | '("Postscript Print Buffer" . ps-print-buffer-with-faces)) | |
77 | (define-key menu-bar-tools-menu [print-region] | |
78 | '("Print Region" . print-region)) | |
79 | (define-key menu-bar-tools-menu [print-buffer] | |
80 | '("Print Buffer" . print-buffer)) | |
81 | \f | |
82 | (define-key menu-bar-files-menu [exit-emacs] | |
83 | '("Exit Emacs" . save-buffers-kill-emacs)) | |
84 | ||
85 | (define-key menu-bar-files-menu [separator-exit] | |
86 | '("--")) | |
87 | ||
88 | (define-key menu-bar-files-menu [one-window] | |
89 | '("One Window" . delete-other-windows)) | |
90 | ||
91 | (define-key menu-bar-files-menu [split-window] | |
92 | '("Split Window" . split-window-vertically)) | |
9bb8e471 | 93 | |
ca1a9692 RS |
94 | (if (fboundp 'delete-frame) |
95 | (progn | |
ffbdd83d | 96 | (define-key menu-bar-files-menu [delete-frame] |
ca1a9692 | 97 | '("Delete Frame" . delete-frame)) |
ffbdd83d RS |
98 | (define-key menu-bar-files-menu [make-frame-on-display] |
99 | '("Open New Display..." . make-frame-on-display)) | |
100 | (define-key menu-bar-files-menu [make-frame] | |
ca1a9692 | 101 | '("Make New Frame" . make-frame)))) |
9bb8e471 | 102 | |
ffbdd83d | 103 | (define-key menu-bar-files-menu [separator-buffers] |
9bb8e471 RS |
104 | '("--")) |
105 | ||
ffbdd83d RS |
106 | (define-key menu-bar-files-menu [kill-buffer] |
107 | '("Kill Current Buffer" . kill-this-buffer)) | |
108 | (define-key menu-bar-files-menu [insert-file] | |
df4d8e01 | 109 | '("Insert File" . insert-file)) |
ffbdd83d | 110 | (define-key menu-bar-files-menu [revert-buffer] |
2f1139a4 | 111 | '("Revert Buffer" . revert-buffer)) |
ffbdd83d | 112 | (define-key menu-bar-files-menu [write-file] |
2f1139a4 | 113 | '("Save Buffer As..." . write-file)) |
ffbdd83d RS |
114 | (define-key menu-bar-files-menu [save-buffer] '("Save Buffer" . save-buffer)) |
115 | (define-key menu-bar-files-menu [dired] '("Open Directory..." . dired)) | |
116 | (define-key menu-bar-files-menu [open-file] '("Open File..." . find-file)) | |
40a8cde1 RS |
117 | |
118 | ;; This is just one element of the ediff menu--the first. | |
119 | (define-key menu-bar-ediff-menu [window] | |
120 | '("This Window And Next Window" . compare-windows)) | |
9bb8e471 | 121 | \f |
ffbdd83d RS |
122 | (defun nonincremental-search-forward (string) |
123 | "Read a string and search for it nonincrementally." | |
124 | (interactive "sSearch for string: ") | |
125 | (if (equal string "") | |
126 | (search-forward (car search-ring)) | |
127 | (isearch-update-ring string nil) | |
128 | (search-forward string))) | |
129 | ||
130 | (defun nonincremental-search-backward (string) | |
131 | "Read a string and search backward for it nonincrementally." | |
132 | (interactive "sSearch for string: ") | |
133 | (if (equal string "") | |
134 | (search-backward (car search-ring)) | |
135 | (isearch-update-ring string nil) | |
136 | (search-backward string))) | |
137 | ||
138 | (defun nonincremental-re-search-forward (string) | |
139 | "Read a regular expression and search for it nonincrementally." | |
140 | (interactive "sSearch for regexp: ") | |
141 | (if (equal string "") | |
142 | (re-search-forward (car regexp-search-ring)) | |
143 | (isearch-update-ring string t) | |
144 | (re-search-forward string))) | |
145 | ||
146 | (defun nonincremental-re-search-backward (string) | |
147 | "Read a regular expression and search backward for it nonincrementally." | |
148 | (interactive "sSearch for regexp: ") | |
149 | (if (equal string "") | |
150 | (re-search-backward (car regexp-search-ring)) | |
151 | (isearch-update-ring string t) | |
152 | (re-search-backward string))) | |
153 | ||
154 | (defun noninteractive-repeat-search-forward () | |
155 | "Search forward for the previous search string." | |
156 | (interactive) | |
157 | (search-forward (car search-ring))) | |
158 | ||
159 | (defun noninteractive-repeat-search-backward () | |
160 | "Search backward for the previous search string." | |
161 | (interactive) | |
162 | (search-backward (car search-ring))) | |
163 | ||
164 | (defun noninteractive-repeat-re-search-forward () | |
165 | "Search forward for the previous regular expression." | |
166 | (interactive) | |
167 | (re-search-forward (car regexp-search-ring))) | |
168 | ||
169 | (defun noninteractive-repeat-re-search-backward () | |
170 | "Search backward for the previous regular expression." | |
171 | (interactive) | |
172 | (re-search-backward (car regexp-search-ring))) | |
173 | ||
174 | (define-key menu-bar-search-menu [query-replace] | |
33aa8946 | 175 | '("Query Replace" . query-replace)) |
ffbdd83d RS |
176 | (define-key menu-bar-search-menu [find-tag] |
177 | '("Find Tag" . find-tag)) | |
178 | (put 'find-tag 'menu-enable 'tags-table-list) | |
179 | (define-key menu-bar-search-menu [bookmark] | |
180 | '("Bookmarks" . menu-bar-bookmark-map)) | |
181 | ||
182 | (define-key menu-bar-search-menu [separator-search] | |
183 | '("--")) | |
184 | ||
185 | (define-key menu-bar-search-menu [nonincremental-repeat-re-search-back] | |
186 | '("Repeat Regexp Backwards" . nonincremental-repeat-re-search-backward)) | |
187 | (define-key menu-bar-search-menu [nonincremental-repeat-search-back] | |
188 | '("Repeat Backwards" . nonincremental-repeat-search-backward)) | |
189 | (define-key menu-bar-search-menu [nonincremental-repeat-re-search-fwd] | |
190 | '("Repeat Regexp" . nonincremental-repeat-re-search-forward)) | |
191 | (define-key menu-bar-search-menu [nonincremental-repeat-search-fwd] | |
192 | '("Repeat Search" . nonincremental-repeat-search-forward)) | |
193 | ||
194 | (define-key menu-bar-search-menu [separator-repeat] | |
9bb8e471 RS |
195 | '("--")) |
196 | ||
ffbdd83d RS |
197 | (define-key menu-bar-search-menu [re-search-back] |
198 | '("Regexp Search Backwards" . nonincremental-re-search-backward)) | |
199 | (define-key menu-bar-search-menu [search-back] | |
200 | '("Search Backwards" . nonincremental-search-backward)) | |
201 | (define-key menu-bar-search-menu [re-search-fwd] | |
202 | '("Regexp Search" . nonincremental-re-search-forward)) | |
203 | (define-key menu-bar-search-menu [search-fwd] | |
204 | '("Search" . nonincremental-search-forward)) | |
205 | \f | |
9bb8e471 RS |
206 | (define-key menu-bar-edit-menu [spell] '("Spell" . ispell-menu-map)) |
207 | (define-key menu-bar-edit-menu [fill] '("Fill" . fill-region)) | |
6507ffb1 | 208 | (define-key menu-bar-edit-menu [props] '("Text Properties" . facemenu-menu)) |
9bb8e471 RS |
209 | |
210 | (define-key menu-bar-edit-menu [separator-edit] | |
211 | '("--")) | |
212 | ||
213 | (define-key menu-bar-edit-menu [clear] '("Clear" . delete-region)) | |
3dd92899 | 214 | |
e1726722 | 215 | (define-key menu-bar-edit-menu [paste] '("Paste Most Recent" . yank)) |
3dd92899 KH |
216 | |
217 | (defvar yank-menu (cons "Select Yank" nil)) | |
218 | (fset 'yank-menu (cons 'keymap yank-menu)) | |
219 | (define-key menu-bar-edit-menu [select-paste] '("Select and Paste" . yank-menu)) | |
4c0317b1 | 220 | (define-key menu-bar-edit-menu [copy] '("Copy" . menu-bar-kill-ring-save)) |
057d49d1 RS |
221 | (define-key menu-bar-edit-menu [cut] '("Cut" . kill-region)) |
222 | (define-key menu-bar-edit-menu [undo] '("Undo" . undo)) | |
223 | ||
4c0317b1 RS |
224 | (defun menu-bar-kill-ring-save (beg end) |
225 | (interactive "r") | |
226 | (if (mouse-region-match) | |
227 | (message "Select a region with the mouse does `copy' automatically") | |
228 | (kill-ring-save beg end))) | |
229 | ||
057d49d1 RS |
230 | (put 'fill-region 'menu-enable 'mark-active) |
231 | (put 'kill-region 'menu-enable 'mark-active) | |
4c0317b1 | 232 | (put 'menu-bar-kill-ring-save 'menu-enable 'mark-active) |
057d49d1 | 233 | (put 'yank 'menu-enable '(x-selection-exists-p)) |
3dd92899 | 234 | (put 'yank-menu 'menu-enable '(cdr yank-menu)) |
4c0317b1 RS |
235 | (put 'delete-region 'menu-enable '(and mark-active |
236 | (not (mouse-region-match)))) | |
057d49d1 RS |
237 | (put 'undo 'menu-enable '(if (eq last-command 'undo) |
238 | pending-undo-list | |
239 | (consp buffer-undo-list))) | |
3a841b0b | 240 | (put 'query-replace 'menu-enable '(not buffer-read-only)) |
db774a16 | 241 | |
9e18f0a0 RS |
242 | (autoload 'ispell-menu-map "ispell" nil t 'keymap) |
243 | ||
f9cf0be2 | 244 | ;; These are alternative definitions for the cut, paste and copy |
4c0317b1 | 245 | ;; menu items. Use them if your system expects these to use the clipboard. |
f9cf0be2 | 246 | |
f9cf0be2 RS |
247 | (put 'clipboard-kill-region 'menu-enable 'mark-active) |
248 | (put 'clipboard-kill-ring-save 'menu-enable 'mark-active) | |
249 | (put 'clipboard-yank 'menu-enable | |
250 | '(or (x-selection-exists-p) (x-selection-exists-p 'CLIPBOARD))) | |
251 | ||
252 | (defun clipboard-yank () | |
253 | "Reinsert the last stretch of killed text, or the clipboard contents." | |
254 | (interactive) | |
255 | (let ((x-select-enable-clipboard t)) | |
256 | (yank))) | |
257 | ||
258 | (defun clipboard-kill-ring-save (beg end) | |
259 | "Copy region to kill ring, and save in the X clipboard." | |
260 | (interactive "r") | |
261 | (let ((x-select-enable-clipboard t)) | |
262 | (kill-ring-save beg end))) | |
263 | ||
264 | (defun clipboard-kill-region (beg end) | |
265 | "Kill the region, and save it in the X clipboard." | |
266 | (interactive "r") | |
267 | (let ((x-select-enable-clipboard t)) | |
268 | (kill-region beg end))) | |
269 | ||
270 | (defun menu-bar-enable-clipboard () | |
5cbdeb30 RS |
271 | "Make CUT, PASTE and COPY (keys and menu bar items) use the clipboard. |
272 | Do the same for the keys of the same name." | |
f9cf0be2 | 273 | (interactive) |
5754d7f2 RS |
274 | ;; We can't use constant list structure here because it becomes pure, |
275 | ;; and because it gets modified with cache data. | |
276 | (define-key menu-bar-edit-menu [paste] | |
277 | (cons "Paste" 'clipboard-yank)) | |
278 | (define-key menu-bar-edit-menu [copy] | |
279 | (cons "Copy" 'clipboard-kill-ring-save)) | |
280 | (define-key menu-bar-edit-menu [cut] | |
5cbdeb30 RS |
281 | (cons "Cut" 'clipboard-kill-region)) |
282 | ||
283 | (define-key global-map [f20] 'clipboard-kill-region) | |
284 | (define-key global-map [f16] 'clipboard-kill-ring-save) | |
285 | (define-key global-map [f18] 'clipboard-yank) | |
286 | ;; X11R6 versions | |
287 | (define-key global-map [cut] 'clipboard-kill-region) | |
288 | (define-key global-map [copy] 'clipboard-kill-ring-save) | |
289 | (define-key global-map [paste] 'clipboard-yank)) | |
f9cf0be2 | 290 | \f |
efb166ff RS |
291 | (define-key menu-bar-help-menu [emacs-version] |
292 | '("Show Version" . emacs-version)) | |
48433a65 RS |
293 | (define-key menu-bar-help-menu [report-emacs-bug] |
294 | '("Send Bug Report" . report-emacs-bug)) | |
ca9b40a1 | 295 | (define-key menu-bar-help-menu [emacs-tutorial] |
db774a16 | 296 | '("Emacs Tutorial" . help-with-tutorial)) |
2f1139a4 RS |
297 | (define-key menu-bar-help-menu [man] '("Man..." . manual-entry)) |
298 | (define-key menu-bar-help-menu [describe-variable] | |
299 | '("Describe Variable..." . describe-variable)) | |
300 | (define-key menu-bar-help-menu [describe-function] | |
301 | '("Describe Function..." . describe-function)) | |
302 | (define-key menu-bar-help-menu [describe-key] | |
303 | '("Describe Key..." . describe-key)) | |
304 | (define-key menu-bar-help-menu [list-keybindings] | |
305 | '("List Keybindings" . describe-bindings)) | |
306 | (define-key menu-bar-help-menu [command-apropos] | |
307 | '("Command Apropos..." . command-apropos)) | |
308 | (define-key menu-bar-help-menu [describe-mode] | |
309 | '("Describe Mode" . describe-mode)) | |
e1726722 | 310 | (define-key menu-bar-help-menu [info] '("Browse Manuals" . info)) |
889560ed | 311 | (define-key menu-bar-help-menu [emacs-faq] '("Emacs FAQ" . view-emacs-FAQ)) |
2f1139a4 | 312 | (define-key menu-bar-help-menu [emacs-news] '("Emacs News" . view-emacs-news)) |
889560ed | 313 | |
db774a16 RS |
314 | (defun kill-this-buffer () ; for the menubar |
315 | "Kills the current buffer." | |
316 | (interactive) | |
317 | (kill-buffer (current-buffer))) | |
318 | ||
2f1139a4 RS |
319 | (defun kill-this-buffer-enabled-p () |
320 | (let ((count 0) | |
321 | (buffers (buffer-list))) | |
322 | (while buffers | |
323 | (or (string-match "^ " (buffer-name (car buffers))) | |
324 | (setq count (1+ count))) | |
325 | (setq buffers (cdr buffers))) | |
326 | (> count 1))) | |
327 | ||
db774a16 | 328 | (put 'save-buffer 'menu-enable '(buffer-modified-p)) |
da183f87 RS |
329 | (put 'revert-buffer 'menu-enable |
330 | '(or revert-buffer-function revert-buffer-insert-file-contents-function | |
331 | (and (buffer-file-name) | |
660fa562 RM |
332 | (or (buffer-modified-p) |
333 | (not (verify-visited-file-modtime (current-buffer))))))) | |
a0213a97 RS |
334 | ;; Permit deleting frame if it would leave a visible or iconified frame. |
335 | (put 'delete-frame 'menu-enable | |
336 | '(let ((frames (frame-list)) | |
337 | (count 0)) | |
338 | (while frames | |
339 | (if (cdr (assq 'visibility (frame-parameters (car frames)))) | |
340 | (setq count (1+ count))) | |
341 | (setq frames (cdr frames))) | |
342 | (> count 1))) | |
2f1139a4 RS |
343 | (put 'kill-this-buffer 'menu-enable '(kill-this-buffer-enabled-p)) |
344 | ||
db774a16 RS |
345 | (put 'advertised-undo 'menu-enable |
346 | '(and (not (eq t buffer-undo-list)) | |
347 | (if (eq last-command 'undo) | |
2f1139a4 RS |
348 | (and (boundp 'pending-undo-list) |
349 | pending-undo-list) | |
350 | buffer-undo-list))) | |
2877eac2 | 351 | |
c3e1d435 | 352 | (defvar yank-menu-length 20 |
3dd92899 KH |
353 | "*Maximum length to display in the yank-menu.") |
354 | ||
355 | (defun menu-bar-update-yank-menu (string old) | |
356 | (let ((front (car (cdr yank-menu))) | |
357 | (menu-string (if (<= (length string) yank-menu-length) | |
358 | string | |
c3e1d435 RS |
359 | (concat |
360 | (substring string 0 (/ yank-menu-length 2)) | |
361 | "..." | |
362 | (substring string (- (/ yank-menu-length 2))))))) | |
3dd92899 KH |
363 | ;; If we're supposed to be extending an existing string, and that |
364 | ;; string really is at the front of the menu, then update it in place. | |
365 | (if (and old (or (eq old (car front)) | |
366 | (string= old (car front)))) | |
dfabc98f | 367 | (progn |
3dd92899 KH |
368 | (setcar front string) |
369 | (setcar (cdr front) menu-string)) | |
370 | (setcdr yank-menu | |
371 | (cons | |
372 | (cons string (cons menu-string 'menu-bar-select-yank)) | |
373 | (cdr yank-menu))))) | |
374 | (if (> (length (cdr yank-menu)) kill-ring-max) | |
375 | (setcdr (nthcdr kill-ring-max yank-menu) nil))) | |
376 | ||
377 | (defun menu-bar-select-yank () | |
378 | (interactive "*") | |
379 | (push-mark (point)) | |
380 | (insert last-command-event)) | |
40954111 | 381 | \f |
09642d97 RS |
382 | (define-key global-map [menu-bar buffer] '("Buffers" . menu-bar-buffers)) |
383 | ||
384 | (defalias 'menu-bar-buffers (make-sparse-keymap "Buffers")) | |
40954111 | 385 | |
40954111 RS |
386 | (defvar buffers-menu-max-size 10 |
387 | "*Maximum number of entries which may appear on the Buffers menu. | |
388 | If this is 10, then only the ten most-recently-selected buffers are shown. | |
389 | If this is nil, then all buffers are shown. | |
390 | A large number or nil slows down menu responsiveness.") | |
391 | ||
d0690d12 RS |
392 | (defvar list-buffers-directory nil) |
393 | ||
08e8171f RS |
394 | (defvar menu-bar-update-buffers-maxbuf) |
395 | ||
09642d97 RS |
396 | (defun menu-bar-select-buffer () |
397 | (interactive) | |
398 | (switch-to-buffer last-command-event)) | |
399 | ||
400 | (defun menu-bar-select-frame () | |
401 | (interactive) | |
402 | (make-frame-visible last-command-event) | |
403 | (raise-frame last-command-event) | |
404 | (select-frame last-command-event)) | |
405 | ||
c171b42f RS |
406 | (defun menu-bar-update-buffers-1 (elt) |
407 | (cons (format | |
08e8171f | 408 | (format "%%%ds %%s%%s %%s" menu-bar-update-buffers-maxbuf) |
c171b42f RS |
409 | (cdr elt) |
410 | (if (buffer-modified-p (car elt)) | |
411 | "*" " ") | |
412 | (save-excursion | |
413 | (set-buffer (car elt)) | |
414 | (if buffer-read-only "%" " ")) | |
415 | (let ((file | |
416 | (or (buffer-file-name (car elt)) | |
417 | (save-excursion | |
418 | (set-buffer (car elt)) | |
419 | list-buffers-directory) | |
420 | ""))) | |
421 | (setq file (or (file-name-directory file) | |
422 | "")) | |
423 | (if (> (length file) 20) | |
424 | (setq file (concat "..." (substring file -17)))) | |
425 | file)) | |
426 | (car elt))) | |
427 | ||
09642d97 | 428 | (defun menu-bar-update-buffers () |
29397c58 | 429 | ;; If user discards the Buffers item, play along. |
4d587a6c | 430 | (and (lookup-key (current-global-map) [menu-bar buffer]) |
29397c58 RS |
431 | (frame-or-buffer-changed-p) |
432 | (let ((buffers (buffer-list)) | |
433 | (frames (frame-list)) | |
434 | buffers-menu frames-menu) | |
435 | ;; If requested, list only the N most recently selected buffers. | |
436 | (if (and (integerp buffers-menu-max-size) | |
437 | (> buffers-menu-max-size 1)) | |
438 | (if (> (length buffers) buffers-menu-max-size) | |
439 | (setcdr (nthcdr buffers-menu-max-size buffers) nil))) | |
440 | ||
441 | ;; Make the menu of buffers proper. | |
442 | (setq buffers-menu | |
443 | (cons "Select Buffer" | |
c171b42f RS |
444 | (let* ((buffer-list |
445 | (mapcar 'list buffers)) | |
446 | tail | |
08e8171f | 447 | (menu-bar-update-buffers-maxbuf 0) |
c171b42f RS |
448 | (maxlen 0) |
449 | alist | |
450 | head) | |
451 | ;; Put into each element of buffer-list | |
452 | ;; the name for actual display, | |
453 | ;; perhaps truncated in the middle. | |
454 | (setq tail buffer-list) | |
455 | (while tail | |
456 | (let ((name (buffer-name (car (car tail))))) | |
457 | (setcdr (car tail) | |
458 | (if (> (length name) 27) | |
459 | (concat (substring name 0 12) | |
460 | "..." | |
461 | (substring name -12)) | |
462 | name))) | |
463 | (setq tail (cdr tail))) | |
464 | ;; Compute the maximum length of any name. | |
465 | (setq tail buffer-list) | |
29397c58 | 466 | (while tail |
c171b42f | 467 | (or (eq ?\ (aref (cdr (car tail)) 0)) |
08e8171f RS |
468 | (setq menu-bar-update-buffers-maxbuf |
469 | (max menu-bar-update-buffers-maxbuf | |
c171b42f | 470 | (length (cdr (car tail)))))) |
29397c58 | 471 | (setq tail (cdr tail))) |
c171b42f RS |
472 | ;; Set ALIST to an alist of the form |
473 | ;; ITEM-STRING . BUFFER | |
474 | (setq tail buffer-list) | |
29397c58 RS |
475 | (while tail |
476 | (let ((elt (car tail))) | |
c171b42f | 477 | (or (eq ?\ (aref (cdr elt) 0)) |
29397c58 | 478 | (setq alist (cons |
c171b42f | 479 | (menu-bar-update-buffers-1 elt) |
29397c58 RS |
480 | alist))) |
481 | (and alist (> (length (car (car alist))) maxlen) | |
482 | (setq maxlen (length (car (car alist)))))) | |
483 | (setq tail (cdr tail))) | |
484 | (setq alist (nreverse alist)) | |
485 | (nconc (mapcar '(lambda (pair) | |
486 | ;; This is somewhat risque, to use | |
487 | ;; the buffer name itself as the event | |
488 | ;; type to define, but it works. | |
489 | ;; It would not work to use the buffer | |
490 | ;; since a buffer as an event has its | |
491 | ;; own meaning. | |
492 | (nconc (list (buffer-name (cdr pair)) | |
493 | (car pair) | |
494 | (cons nil nil)) | |
495 | 'menu-bar-select-buffer)) | |
496 | alist) | |
497 | (list | |
096ec7e7 | 498 | (cons |
29397c58 RS |
499 | 'list-buffers |
500 | (cons | |
501 | (concat (make-string (max (- (/ maxlen 2) 8) 0) | |
502 | ?\ ) | |
503 | "List All Buffers") | |
504 | 'list-buffers))))))) | |
505 | ||
506 | ||
507 | ;; Make a Frames menu if we have more than one frame. | |
508 | (if (cdr frames) | |
509 | (setq frames-menu | |
510 | (cons "Select Frame" | |
511 | (mapcar '(lambda (frame) | |
512 | (nconc (list frame | |
513 | (cdr (assq 'name | |
514 | (frame-parameters frame))) | |
515 | (cons nil nil)) | |
516 | 'menu-bar-select-frame)) | |
517 | frames)))) | |
518 | (if buffers-menu | |
519 | (setq buffers-menu (cons 'keymap buffers-menu))) | |
520 | (if frames-menu | |
521 | (setq frames-menu (cons 'keymap frames-menu))) | |
4d587a6c | 522 | (define-key (current-global-map) [menu-bar buffer] |
29397c58 RS |
523 | (cons "Buffers" |
524 | (if (and buffers-menu frames-menu) | |
525 | (list 'keymap "Buffers and Frames" | |
526 | (cons 'buffers (cons "Buffers" buffers-menu)) | |
527 | (cons 'frames (cons "Frames" frames-menu))) | |
528 | (or buffers-menu frames-menu 'undefined))))))) | |
09642d97 RS |
529 | |
530 | (add-hook 'menu-bar-update-hook 'menu-bar-update-buffers) | |
2f1139a4 | 531 | |
40954111 RS |
532 | ;; this version is too slow |
533 | ;;;(defun format-buffers-menu-line (buffer) | |
534 | ;;; "Returns a string to represent the given buffer in the Buffer menu. | |
535 | ;;;nil means the buffer shouldn't be listed. You can redefine this." | |
536 | ;;; (if (string-match "\\` " (buffer-name buffer)) | |
537 | ;;; nil | |
538 | ;;; (save-excursion | |
539 | ;;; (set-buffer buffer) | |
540 | ;;; (let ((size (buffer-size))) | |
541 | ;;; (format "%s%s %-19s %6s %-15s %s" | |
542 | ;;; (if (buffer-modified-p) "*" " ") | |
543 | ;;; (if buffer-read-only "%" " ") | |
544 | ;;; (buffer-name) | |
545 | ;;; size | |
546 | ;;; mode-name | |
547 | ;;; (or (buffer-file-name) "")))))) | |
548 | \f | |
7b7d6615 RS |
549 | (defvar menu-bar-mode nil) |
550 | ||
057d49d1 | 551 | (defun menu-bar-mode (flag) |
dfd29450 | 552 | "Toggle display of a menu bar on each frame. |
057d49d1 RS |
553 | This command applies to all frames that exist and frames to be |
554 | created in the future. | |
555 | With a numeric argument, if the argument is negative, | |
dfd29450 | 556 | turn off menu bars; otherwise, turn on menu bars." |
dad8e392 | 557 | (interactive "P") |
dad8e392 | 558 | |
7b7d6615 RS |
559 | ;; Make menu-bar-mode and default-frame-alist consistent. |
560 | (let ((default (assq 'menu-bar-lines default-frame-alist))) | |
561 | (if default | |
562 | (setq menu-bar-mode (not (eq (cdr default) 0))) | |
563 | (setq default-frame-alist | |
564 | (cons (cons 'menu-bar-lines (if menu-bar-mode 1 0)) | |
565 | default-frame-alist)))) | |
566 | ||
567 | ;; Toggle or set the mode, according to FLAG. | |
568 | (setq menu-bar-mode (if (null flag) (not menu-bar-mode) | |
569 | (> (prefix-numeric-value flag) 0))) | |
570 | ||
571 | ;; Apply it to default-frame-alist. | |
572 | (let ((parameter (assq 'menu-bar-lines default-frame-alist))) | |
573 | (if (consp parameter) | |
574 | (setcdr parameter (if menu-bar-mode 1 0)) | |
575 | (setq default-frame-alist | |
576 | (cons (cons 'menu-bar-lines (if menu-bar-mode 1 0)) | |
577 | default-frame-alist)))) | |
578 | ||
579 | ;; Apply it to existing frames. | |
580 | (let ((frames (frame-list))) | |
581 | (while frames | |
582 | (let ((height (cdr (assq 'height (frame-parameters (car frames)))))) | |
583 | (modify-frame-parameters (car frames) | |
584 | (list (cons 'menu-bar-lines | |
585 | (if menu-bar-mode 1 0)))) | |
586 | (modify-frame-parameters (car frames) | |
587 | (list (cons 'height height)))) | |
588 | (setq frames (cdr frames))))) | |
1db87953 | 589 | |
bffa5d4d RS |
590 | (provide 'menu-bar) |
591 | ||
235aa29b | 592 | ;;; menu-bar.el ends here |