lisp/menu-bar.el

   1 ;;; menu-bar.el --- define a default menu bar.
   2
   3 ;; Copyright (C) 1993, 1994, 1995, 2000 Free Software Foundation, Inc.
   4
   5 ;; Author: RMS
   6 ;; Maintainer: FSF
   7 ;; Keywords: internal
   8
   9 ;; This file is part of GNU Emacs.
  10
  11 ;; GNU Emacs is free software; you can redistribute it and/or modify
  12 ;; it under the terms of the GNU General Public License as published by
  13 ;; the Free Software Foundation; either version 2, or (at your option)
  14 ;; any later version.
  15
  16 ;; GNU Emacs is distributed in the hope that it will be useful,
  17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 ;; GNU General Public License for more details.
  20
  21 ;; You should have received a copy of the GNU General Public License
  22 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  23 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  24 ;; Boston, MA 02111-1307, USA.
  25
  26 ;; Avishai Yacobi suggested some menu rearrangements.
  27
  28 ;;; Code:
  29
  30 ;;; User options:
  31
  32 (defcustom buffers-menu-max-size 10
  33   "*Maximum number of entries which may appear on the Buffers menu.
  34 If this is 10, then only the ten most-recently-selected buffers are shown.
  35 If this is nil, then all buffers are shown.
  36 A large number or nil slows down menu responsiveness."
  37   :type '(choice integer
  38                  (const :tag "All" nil))
  39   :group 'mouse)
  40
  41 ;; Don't clobber an existing menu-bar keymap, to preserve any menu-bar key
  42 ;; definitions made in loaddefs.el.
  43 (or (lookup-key global-map [menu-bar])
  44     (define-key global-map [menu-bar] (make-sparse-keymap "menu-bar")))
  45 (defvar menu-bar-help-menu (make-sparse-keymap "Help"))
  46
  47 ;; Force Help item to come last, after the major mode's own items.
  48 ;; The symbol used to be called `help', but that gets confused with the
  49 ;; help key.
  50 (setq menu-bar-final-items '(help-menu))
  51
  52 (define-key global-map [menu-bar help-menu] (cons "Help" menu-bar-help-menu))
  53 (defvar menu-bar-tools-menu (make-sparse-keymap "Tools"))
  54 (define-key global-map [menu-bar tools] (cons "Tools" menu-bar-tools-menu))
  55 ;; This definition is just to show what this looks like.
  56 ;; It gets overridden below when menu-bar-update-buffers is called.
  57 (define-key global-map [menu-bar buffer]
  58   (cons "Buffers" (make-sparse-keymap "Buffers")))
  59 (defvar menu-bar-options-menu (make-sparse-keymap "Options"))
  60 (define-key global-map [menu-bar options]
  61   (cons "Options" menu-bar-options-menu))
  62 (defvar menu-bar-edit-menu (make-sparse-keymap "Edit"))
  63 (define-key global-map [menu-bar edit] (cons "Edit" menu-bar-edit-menu))
  64 (defvar menu-bar-files-menu (make-sparse-keymap "File"))
  65 (define-key global-map [menu-bar files] (cons "File" menu-bar-files-menu))
  66
  67 ;; This alias is for compatibility with 19.28 and before.
  68 (defvar menu-bar-file-menu menu-bar-files-menu)
  69 \f
  70 ;; The "File" menu items
  71 (define-key menu-bar-files-menu [exit-emacs]
  72   '(menu-item "Exit Emacs" save-buffers-kill-emacs
  73               :help "Save unsaved buffers, then exit"))
  74
  75 (define-key menu-bar-files-menu [separator-exit]
  76   '("--"))
  77
  78 ;; Don't use delete-frame as event name because that is a special
  79 ;; event.
  80 (define-key menu-bar-files-menu [delete-this-frame]
  81   '(menu-item "Delete Frame" delete-frame
  82               :visible (fboundp 'delete-frame)
  83               :enable (delete-frame-enabled-p)
  84               :help "Delete currently selected frame"))
  85 (define-key menu-bar-files-menu [make-frame-on-display]
  86   '(menu-item "New Frame on Display..." make-frame-on-display
  87               :visible (fboundp 'make-frame-on-display)
  88               :help "Open a new frame on another display"))
  89 (define-key menu-bar-files-menu [make-frame]
  90   '(menu-item "New Frame" make-frame-command
  91               :visible (fboundp 'make-frame-command)
  92               :help "Open a new frame"))
  93
  94 (define-key menu-bar-files-menu [one-window]
  95   '(menu-item "Unsplit Windows" delete-other-windows
  96               :enable (not (one-window-p t nil))
  97               :help "Make selected window fill its frame"))
  98
  99 (define-key menu-bar-files-menu [split-window]
 100   '(menu-item "Split Window" split-window-vertically
 101               :help "Split selected window in two"))
 102
 103 (define-key menu-bar-files-menu [separator-window]
 104   '(menu-item "--"))
 105
 106 (define-key menu-bar-files-menu [ps-print-region]
 107   '(menu-item "Postscript Print Region" ps-print-region-with-faces
 108               :enable mark-active
 109               :help "Pretty-print marked region to PostScript printer"))
 110 (define-key menu-bar-files-menu [ps-print-buffer]
 111   '(menu-item "Postscript Print Buffer" ps-print-buffer-with-faces
 112               :help "Pretty-print current buffer to PostScript printer"))
 113 (define-key menu-bar-files-menu [print-region]
 114   '(menu-item "Print Region" print-region
 115               :enable mark-active
 116               :help "Print region between mark and current position"))
 117 (define-key menu-bar-files-menu [print-buffer]
 118   '(menu-item "Print Buffer" print-buffer
 119               :help "Print current buffer with page headings"))
 120
 121 (define-key menu-bar-files-menu [separator-print]
 122   '(menu-item "--"))
 123
 124 (define-key menu-bar-files-menu [recover-session]
 125   '(menu-item "Recover Crashed Session..." recover-session
 126               :enable (and auto-save-list-file-prefix
 127                            (directory-files
 128                             (file-name-directory auto-save-list-file-prefix)
 129                             nil
 130                             (concat "\\`"
 131                                     (regexp-quote
 132                                      (file-name-nondirectory
 133                                       auto-save-list-file-prefix)))
 134                             t))
 135               :help "Recover edits from a crashed session"))
 136 (define-key menu-bar-files-menu [revert-buffer]
 137   '(menu-item "Revert Buffer" revert-buffer
 138               :enable (or revert-buffer-function
 139                           revert-buffer-insert-file-contents-function
 140                           (and (buffer-file-name)
 141                                (or (buffer-modified-p)
 142                                    (not (verify-visited-file-modtime
 143                                          (current-buffer))))))
 144               :help "Re-read current buffer from its file"))
 145 (define-key menu-bar-files-menu [write-file]
 146   '(menu-item "Save Buffer As..." write-file
 147               :enable (not (window-minibuffer-p
 148                             (frame-selected-window menu-updating-frame)))
 149               :help "Write current buffer to another file"))
 150 (define-key menu-bar-files-menu [save-buffer]
 151   '(menu-item "Save (current buffer)" save-buffer
 152               :enable (and (buffer-modified-p)
 153                            (not (window-minibuffer-p
 154                                  (frame-selected-window menu-updating-frame))))
 155               :help "Save current buffer to its file"))
 156
 157 (define-key menu-bar-files-menu [separator-save]
 158   '(menu-item "--"))
 159
 160 (define-key menu-bar-files-menu [kill-buffer]
 161   '(menu-item "Close (current buffer)" kill-this-buffer
 162               :enable (kill-this-buffer-enabled-p)
 163               :help "Discard contents of current buffer"))
 164 (define-key menu-bar-files-menu [insert-file]
 165   '(menu-item "Insert File..." insert-file
 166               :enable (not (window-minibuffer-p
 167                             (frame-selected-window menu-updating-frame)))
 168               :help "Insert another file into current buffer"))
 169 (define-key menu-bar-files-menu [dired]
 170   '(menu-item "Open Directory..." dired
 171               :help "Read a directory, operate on its files"))
 172 (define-key menu-bar-files-menu [open-file]
 173   '(menu-item "Open File..." find-file
 174               :enable (not (window-minibuffer-p
 175                             (frame-selected-window menu-updating-frame)))
 176               :help "Read a file into an Emacs buffer"))
 177
 178 \f
 179 ;; The "Edit" menu items
 180 (defun nonincremental-search-forward (string)
 181   "Read a string and search for it nonincrementally."
 182   (interactive "sSearch for string: ")
 183   (if (equal string "")
 184       (search-forward (car search-ring))
 185     (isearch-update-ring string nil)
 186     (search-forward string)))
 187
 188 (defun nonincremental-search-backward (string)
 189   "Read a string and search backward for it nonincrementally."
 190   (interactive "sSearch for string: ")
 191   (if (equal string "")
 192       (search-backward (car search-ring))
 193     (isearch-update-ring string nil)
 194     (search-backward string)))
 195
 196 (defun nonincremental-re-search-forward (string)
 197   "Read a regular expression and search for it nonincrementally."
 198   (interactive "sSearch for regexp: ")
 199   (if (equal string "")
 200       (re-search-forward (car regexp-search-ring))
 201     (isearch-update-ring string t)
 202     (re-search-forward string)))
 203
 204 (defun nonincremental-re-search-backward (string)
 205   "Read a regular expression and search backward for it nonincrementally."
 206   (interactive "sSearch for regexp: ")
 207   (if (equal string "")
 208       (re-search-backward (car regexp-search-ring))
 209     (isearch-update-ring string t)
 210     (re-search-backward string)))
 211
 212 (defun nonincremental-repeat-search-forward ()
 213   "Search forward for the previous search string."
 214   (interactive)
 215   (if (null search-ring)
 216       (error "No previous search"))
 217   (search-forward (car search-ring)))
 218
 219 (defun nonincremental-repeat-search-backward ()
 220   "Search backward for the previous search string."
 221   (interactive)
 222   (if (null search-ring)
 223       (error "No previous search"))
 224   (search-backward (car search-ring)))
 225
 226 (defun nonincremental-repeat-re-search-forward ()
 227   "Search forward for the previous regular expression."
 228   (interactive)
 229   (if (null regexp-search-ring)
 230       (error "No previous search"))
 231   (re-search-forward (car regexp-search-ring)))
 232
 233 (defun nonincremental-repeat-re-search-backward ()
 234   "Search backward for the previous regular expression."
 235   (interactive)
 236   (if (null regexp-search-ring)
 237       (error "No previous search"))
 238   (re-search-backward (car regexp-search-ring)))
 239
 240 (defvar menu-bar-search-menu (make-sparse-keymap "Search"))
 241 (defvar menu-bar-adv-search-menu
 242   (make-sparse-keymap "Advanced Search/Replace"))
 243
 244 (define-key menu-bar-adv-search-menu [tags-continue]
 245   '(menu-item "Continue Tags Search/Replace" tags-loop-continue
 246               :help "Continue last tags search/replace operation"))
 247 (define-key menu-bar-adv-search-menu [tags-repl]
 248   '(menu-item "Replace in all tagged files" tags-query-replace
 249               :help "Interactively replace a regexp in all tagged files"))
 250 (define-key menu-bar-adv-search-menu [tags-srch]
 251   '(menu-item "Search in all tagged files" tags-search
 252               :help "Search for a regexp in all tagged files"))
 253
 254 (define-key menu-bar-adv-search-menu [separator-tag-search]
 255   '(menu-item "--"))
 256
 257 (define-key menu-bar-adv-search-menu [query-replace-regexp]
 258   '(menu-item "Replace Regexp..." query-replace-regexp
 259               :enable (not buffer-read-only)
 260               :help "Replace regular expression, ask about each occurrence"))
 261 (define-key menu-bar-adv-search-menu [repeat-regexp-back]
 262   '(menu-item "Repeat Regexp Backwards"
 263               nonincremental-repeat-re-search-backward
 264               :enable regexp-search-ring
 265               :help "Repeat last regular expression search backwards"))
 266 (define-key menu-bar-adv-search-menu [repeat-regexp-fwd]
 267   '(menu-item "Repeat Regexp" nonincremental-repeat-re-search-forward
 268               :enable regexp-search-ring
 269               :help "Repeat last regular expression search forward"))
 270 (define-key menu-bar-adv-search-menu [re-search-backward]
 271   '(menu-item "Search Regexp Backwards..." nonincremental-re-search-backward
 272               :help "Search backwards for a regular expression"))
 273 (define-key menu-bar-adv-search-menu [re-search-forward]
 274   '(menu-item "Search Regexp..." nonincremental-re-search-forward
 275               :help "Search forward for a regular expression"))
 276 (define-key menu-bar-search-menu [re-search]
 277   (list 'menu-item "Advanced Search/Replace" menu-bar-adv-search-menu
 278               :help "Regexp and Tags search and replace"))
 279
 280 (define-key menu-bar-search-menu [query-replace]
 281   '(menu-item "Replace..." query-replace
 282               :enable (not buffer-read-only)
 283               :help "Replace string interactively, ask about each occurrence"))
 284 (define-key menu-bar-search-menu [repeat-search-back]
 285   '(menu-item "Repeat Backwards" nonincremental-repeat-search-backward
 286               :enable search-ring
 287               :help "Repeat last search backwards"))
 288 (define-key menu-bar-search-menu [repeat-search-fwd]
 289   '(menu-item "Repeat Search" nonincremental-repeat-search-forward
 290               :enable search-ring
 291               :help "Repeat last search forward"))
 292 (define-key menu-bar-search-menu [search-backward]
 293   '(menu-item "Search Backwards..." nonincremental-search-backward
 294               :help "Search backwards for a string"))
 295 (define-key menu-bar-search-menu [search-forward]
 296   '(menu-item "Search..." nonincremental-search-forward
 297               :help "Search forward for a string"))
 298
 299 ;;; Assemble the top-level Edit menu items.
 300 (define-key menu-bar-edit-menu [props]
 301   '(menu-item "Text Properties" facemenu-menu
 302               :help "Change properties of text in region"))
 303
 304 (define-key menu-bar-search-menu [separator-search]
 305   '(menu-item "--"))
 306
 307 (define-key menu-bar-edit-menu [bookmark]
 308   '(menu-item "Bookmarks" menu-bar-bookmark-map
 309               :help "Record positions and jump between them"))
 310
 311 (define-key menu-bar-edit-menu [separator-bookmark]
 312   '(menu-item "--"))
 313
 314 (defvar menu-bar-goto-menu (make-sparse-keymap "Go To"))
 315
 316 (define-key menu-bar-goto-menu [set-tags-name]
 317   '(menu-item "Set Tags File Name" visit-tags-table
 318               :help "Tell Tags commands which tag table file to use"))
 319
 320 (define-key menu-bar-goto-menu [separator-tag-file]
 321   '(menu-item "--"))
 322
 323 (define-key menu-bar-goto-menu [apropos-tags]
 324   '(menu-item "Tags Apropos" tags-apropos
 325               :help "Find function/variables whose names match regexp"))
 326 (define-key menu-bar-goto-menu [next-tag-otherw]
 327   '(menu-item "Next Tag in Other Window"
 328               (function (lambda () (find-tag-other-window nil t)))
 329               :enable (and (boundp 'tags-location-ring)
 330                            (not (ring-empty-p tags-location-ring)))
 331               :help "Find next function/variable matching last tag name in another window"))
 332 (define-key menu-bar-goto-menu [next-tag]
 333   '(menu-item "Find Next Tag"
 334               (function (lambda () (find-tag nil t)))
 335               :enable (and (boundp 'tags-location-ring)
 336                            (not (ring-empty-p tags-location-ring)))
 337               :help "Find next function/variable matching last tag name"))
 338 (define-key menu-bar-goto-menu [find-tag-otherw]
 339   '(menu-item "Find Tag in Other Window..." find-tag-other-window
 340               :help "Find function/variable definition in another window"))
 341 (define-key menu-bar-goto-menu [find-tag]
 342   '(menu-item "Find Tag..." find-tag
 343               :help "Find definition of function or variable"))
 344
 345 (define-key menu-bar-goto-menu [separator-tags]
 346   '(menu-item "--"))
 347
 348 (define-key menu-bar-goto-menu [end-of-buf]
 349   '(menu-item "Goto End of Buffer" end-of-buffer))
 350 (define-key menu-bar-goto-menu [beg-of-buf]
 351   '(menu-item "Goto Beginning of Buffer" beginning-of-buffer))
 352 (define-key menu-bar-goto-menu [go-to-pos]
 353   '(menu-item "Goto Buffer Position..." goto-char
 354               :help "Read a number N and go to buffer position N"))
 355 (define-key menu-bar-goto-menu [go-to-line]
 356   '(menu-item "Goto Line..." goto-line
 357               :help "Read a line number and go to that line"))
 358
 359 (define-key menu-bar-edit-menu [goto]
 360   (list 'menu-item "Go To" menu-bar-goto-menu))
 361
 362 (define-key menu-bar-edit-menu [search]
 363   (list 'menu-item "Search" menu-bar-search-menu))
 364
 365 (define-key menu-bar-edit-menu [fill]
 366   '(menu-item "Fill" fill-region
 367               :enable (and mark-active (not buffer-read-only))
 368               :help
 369               "Fill text in region to fit between left and right margin"))
 370 (define-key menu-bar-edit-menu [clear]
 371   '(menu-item "Clear" delete-region
 372               :enable (and mark-active
 373                            (not buffer-read-only)
 374                            (not (mouse-region-match)))
 375               :help
 376               "Delete the text in region between mark and current pos"))
 377 (defvar yank-menu (cons "Select Yank" nil))
 378 (fset 'yank-menu (cons 'keymap yank-menu))
 379 (define-key menu-bar-edit-menu [select-paste]
 380   '(menu-item "Select and Paste" yank-menu
 381               :enable (and (cdr yank-menu) (not buffer-read-only))
 382               :help "Paste text cut/copied earlier"))
 383 (define-key menu-bar-edit-menu [paste]
 384   '(menu-item "Paste" yank
 385               :enable (and (x-selection-exists-p) (not buffer-read-only))
 386               :help "Paste text most recently cut/copied"))
 387 (define-key menu-bar-edit-menu [copy]
 388   '(menu-item "Copy" menu-bar-kill-ring-save
 389               :enable mark-active
 390               :help "Copy text in region between mark and current pos"))
 391 (define-key menu-bar-edit-menu [cut]
 392   '(menu-item "Cut" kill-region
 393               :enable (and mark-active (not buffer-read-only))
 394               :help "Cut (kill) text in region between mark and current pos"))
 395 (define-key menu-bar-edit-menu [undo]
 396   '(menu-item "Undo" undo
 397               :enable (and (not buffer-read-only)
 398                            (not (eq t buffer-undo-list))
 399                            (if (eq last-command 'undo)
 400                                pending-undo-list
 401                              (consp buffer-undo-list)))
 402               :help "Undo last operation"))
 403
 404
 405 (defun menu-bar-kill-ring-save (beg end)
 406   (interactive "r")
 407   (if (mouse-region-match)
 408       (message "Selecting a region with the mouse does `copy' automatically")
 409     (kill-ring-save beg end)))
 410
 411 (autoload 'ispell-menu-map "ispell" nil t 'keymap)
 412
 413 ;; These are alternative definitions for the cut, paste and copy
 414 ;; menu items.  Use them if your system expects these to use the clipboard.
 415
 416 (put 'clipboard-kill-region 'menu-enable 'mark-active)
 417 (put 'clipboard-kill-ring-save 'menu-enable 'mark-active)
 418 (put 'clipboard-yank 'menu-enable
 419      '(or (x-selection-exists-p) (x-selection-exists-p 'CLIPBOARD)))
 420
 421 (defun clipboard-yank ()
 422   "Insert the clipboard contents, or the last stretch of killed text."
 423   (interactive)
 424   (let ((x-select-enable-clipboard t))
 425     (yank)))
 426
 427 (defun clipboard-kill-ring-save (beg end)
 428   "Copy region to kill ring, and save in the X clipboard."
 429   (interactive "r")
 430   (let ((x-select-enable-clipboard t))
 431     (kill-ring-save beg end)))
 432
 433 (defun clipboard-kill-region (beg end)
 434   "Kill the region, and save it in the X clipboard."
 435   (interactive "r")
 436   (let ((x-select-enable-clipboard t))
 437     (kill-region beg end)))
 438
 439 (defun menu-bar-enable-clipboard ()
 440   "Make CUT, PASTE and COPY (keys and menu bar items) use the clipboard.
 441 Do the same for the keys of the same name."
 442   (interactive)
 443   ;; We can't use constant list structure here because it becomes pure,
 444   ;; and because it gets modified with cache data.
 445   (define-key menu-bar-edit-menu [paste]
 446     (cons "Paste" (cons "Paste text from clipboard" 'clipboard-yank)))
 447   (define-key menu-bar-edit-menu [copy]
 448     (cons "Copy" (cons "Copy text in region to the clipboard"
 449                        'clipboard-kill-ring-save)))
 450   (define-key menu-bar-edit-menu [cut]
 451     (cons "Cut" (cons "Delete text in region and copy it to the clipboard"
 452                       'clipboard-kill-region)))
 453
 454   (define-key global-map [f20] 'clipboard-kill-region)
 455   (define-key global-map [f16] 'clipboard-kill-ring-save)
 456   (define-key global-map [f18] 'clipboard-yank)
 457   ;; X11R6 versions
 458   (define-key global-map [cut] 'clipboard-kill-region)
 459   (define-key global-map [copy] 'clipboard-kill-ring-save)
 460   (define-key global-map [paste] 'clipboard-yank))
 461 \f
 462 ;; The "Options" menu items
 463
 464 (defvar menu-bar-custom-menu (make-sparse-keymap "Customize"))
 465
 466 (define-key menu-bar-custom-menu [customize-apropos-groups]
 467   '(menu-item "Groups Matching Regexp..." customize-apropos-groups
 468               :help "Browse groups whose names match regexp"))
 469 (define-key menu-bar-custom-menu [customize-apropos-faces]
 470   '(menu-item "Faces Matching Regexp..." customize-apropos-faces
 471               :help "Browse faces whose names match regexp"))
 472 (define-key menu-bar-custom-menu [customize-apropos-options]
 473   '(menu-item "Options Matching Regexp..." customize-apropos-options
 474               :help "Browse options whose names match regexp"))
 475 (define-key menu-bar-custom-menu [customize-apropos]
 476   '(menu-item "Settings Matching Regexp..." customize-apropos
 477               :help "Browse customizable settings whose names match regexp"))
 478 (define-key menu-bar-custom-menu [separator-2]
 479   '("--"))
 480 (define-key menu-bar-custom-menu [customize-group]
 481   '(menu-item "Specific Group..." customize-group
 482               :help "Customize settings of specific group"))
 483 (define-key menu-bar-custom-menu [customize-face]
 484   '(menu-item "Specific Face..." customize-face
 485               :help "Customize attributes of specific face"))
 486 (define-key menu-bar-custom-menu [customize-option]
 487   '(menu-item "Specific Option..." customize-option
 488               :help "Change value of specific option"))
 489 (define-key menu-bar-custom-menu [customize-changed-options]
 490   '(menu-item "Recently Changed Options..." customize-changed-options
 491               :help "Customize options changed in recent versions"))
 492 (define-key menu-bar-custom-menu [separator-3]
 493   '("--"))
 494 (define-key menu-bar-custom-menu [customize-browse]
 495   '(menu-item "Browse Customization Groups" customize-browse
 496               :help "Browse all customization groups"))
 497 (define-key menu-bar-custom-menu [customize]
 498   '(menu-item "Top-level Customization Group" customize
 499               :help "The master group called `Emacs'"))
 500
 501 ;(defvar menu-bar-preferences-menu (make-sparse-keymap "Preferences"))
 502
 503 (defmacro menu-bar-make-toggle (name variable doc message help &rest body)
 504   `(progn
 505      (defun ,name ()
 506        ,(concat doc ".")
 507        (interactive)
 508        (if ,(if body `(progn . ,body)
 509               `(setq ,variable (not ,variable)))
 510            (message ,message "enabled")
 511          (message ,message "disabled")))
 512      '(menu-item ,doc ,name
 513                  :help ,help
 514                  :button (:toggle . (and (boundp ',variable) ,variable)))))
 515
 516 ;;; Assemble all the top-level items of the "Options" menu
 517 (define-key menu-bar-options-menu [customize]
 518   (list 'menu-item "Customize Emacs" menu-bar-custom-menu
 519         :help "Full customization of every Emacs feature"))
 520 (define-key menu-bar-options-menu [mule]
 521   ;; It is better not to use backquote here,
 522   ;; because that makes a bootstrapping problem
 523   ;; if you need to recompile all the Lisp files using interpreted code.
 524   (list 'menu-item "Mule (Multilingual Environment)" mule-menu-keymap
 525 ;; Most of the MULE menu actually does make sense in unibyte mode,
 526 ;; e.g. language selection.
 527 ;;;     ':visible 'default-enable-multibyte-characters
 528         ':help "Default language, encodings, input method"))
 529 ;(setq menu-bar-final-items (cons 'mule menu-bar-final-items))
 530 ;(define-key menu-bar-options-menu [preferences]
 531 ;  (list 'menu-item "Preferences" menu-bar-preferences-menu
 532 ;       :help "Toggle important global options"))
 533
 534 (define-key menu-bar-options-menu [mule-separator]
 535   '("--"))
 536
 537 (define-key menu-bar-options-menu [debug-on-quit]
 538   (menu-bar-make-toggle toggle-debug-on-quit debug-on-quit
 539                         "Enter Debugger on Quit/C-g" "Debug on Quit %s"
 540                         "Enter Lisp debugger when C-g is pressed"))
 541 (define-key menu-bar-options-menu [debug-on-error]
 542   (menu-bar-make-toggle toggle-debug-on-error debug-on-error
 543                         "Enter Debugger on Error" "Debug on Error %s"
 544                         "Enter Lisp debugger when error is signaled"))
 545 (define-key menu-bar-options-menu [debugger-separator]
 546   '("--"))
 547 (define-key menu-bar-options-menu [toggle-auto-compression]
 548   '(menu-item "Automatic File De/compression"
 549              auto-compression-mode
 550              :help "Transparently decompress compressed files"
 551              :button (:toggle . (rassq 'jka-compr-handler
 552                                        file-name-handler-alist))))
 553 (define-key menu-bar-options-menu [save-place]
 554   (menu-bar-make-toggle toggle-save-place-globally save-place
 555                         "Save Place in Files between Sessions"
 556                         "Saving place in files %s"
 557                         "Save Emacs state for next session"
 558                         (require 'saveplace)
 559                         (setq-default save-place (not (default-value save-place)))))
 560 (define-key menu-bar-options-menu [uniquify]
 561   (menu-bar-make-toggle toggle-uniquify-buffer-names uniquify-buffer-name-style
 562                         "Use Directory Names in Buffer Names"
 563                         "Directory name in buffer names (uniquify) %s"
 564                         nil
 565                         (require 'uniquify)
 566                         (setq uniquify-buffer-name-style
 567                               (if (not uniquify-buffer-name-style)
 568                                   'forward))))
 569 (define-key menu-bar-options-menu [edit-options-separator]
 570   '("--"))
 571 (define-key menu-bar-options-menu [case-fold-search]
 572   (menu-bar-make-toggle toggle-case-fold-search case-fold-search
 573                         "Case-Insensitive Search"
 574                         "Case-Insensitive Search %s"
 575                         "If checked, search ignores letter-case"))
 576 (define-key menu-bar-options-menu [auto-fill-mode]
 577   '(menu-item "Word Wrap in Text Modes (Auto Fill)"
 578               toggle-text-mode-auto-fill
 579               :help "Automatically fill text between left and right margins"
 580               :button (:toggle . (member 'turn-on-auto-fill text-mode-hook))))
 581 (define-key menu-bar-options-menu [truncate-lines]
 582   (menu-bar-make-toggle
 583    toggle-truncate-lines truncate-lines
 584    "Truncate Long Lines in this Buffer" "Long Line Truncation %s"
 585    "If checked, long lines are truncated on the screen"
 586    (prog1 (setq truncate-lines (not truncate-lines))
 587      (set-buffer-modified-p (buffer-modified-p)))))
 588 (define-key menu-bar-options-menu [highlight-separator]
 589   '("--"))
 590 (define-key menu-bar-options-menu [highlight-paren-mode]
 591   (menu-bar-make-toggle toggle-highlight-paren-mode show-paren-mode
 592                         "Highlight Matching Parentheses"
 593                         "Show Paren mode %s"
 594                         "Highlight matching and mismatched parentheses"))
 595 (define-key menu-bar-options-menu [transient-mark-mode]
 596   (menu-bar-make-toggle toggle-transient-mark-mode transient-mark-mode
 597                         "Transient Mark Mode (highlights region)"
 598                         "Transient Mark mode %s"
 599                         "Highlight the marked region when it's active"))
 600 (define-key menu-bar-options-menu [toggle-global-lazy-font-lock-mode]
 601   (menu-bar-make-toggle toggle-global-lazy-font-lock-mode global-font-lock-mode
 602                         "Highlight Syntax (Global Font Lock)"
 603                         "Syntax Highlighting %s"
 604                         "Highlights text based on language syntax"
 605                         ;; Make sure a support mode is used;
 606                         ;; otherwise Font Lock will be too slow.
 607                         (require 'font-lock)
 608                         (if (not global-font-lock-mode)
 609                             (or font-lock-support-mode
 610                                 (setq font-lock-support-mode 'lazy-lock-mode)))
 611                         (global-font-lock-mode)))
 612
 613
 614 \f
 615 ;; The "Tools" menu items
 616
 617 (defvar menu-bar-games-menu (make-sparse-keymap "Games"))
 618
 619 (define-key menu-bar-tools-menu [games]
 620   (list 'menu-item "Games" menu-bar-games-menu))
 621
 622 (define-key menu-bar-tools-menu [separator-games]
 623   '("--"))
 624
 625 (define-key menu-bar-games-menu [yow]
 626   '(menu-item "Random Quotation"  yow
 627               :help "Display a random Zippy quotation"))
 628 (define-key menu-bar-games-menu [tetris]
 629   '(menu-item "Tetris"  tetris))
 630 (define-key menu-bar-games-menu [solitaire]
 631   '(menu-item "Solitaire"  solitaire))
 632 (define-key menu-bar-games-menu [snake]
 633   '(menu-item "Snake"  snake
 634               :help "Move snake around avoiding collisions"))
 635 (define-key menu-bar-games-menu [mult]
 636   '(menu-item "Multiplication Puzzle"  mpuz
 637               :help "Excercise brain with multiplication"))
 638 (define-key menu-bar-games-menu [life]
 639   '(menu-item "Life"  life
 640               :help "Watch how John Conway's cellular automaton evolves"))
 641 (define-key menu-bar-games-menu [hanoi]
 642   '(menu-item "Towers of Hanoi" hanoi
 643               :help "Watch Towers-of-Hanoi puzzle solved by Emacs"))
 644 (define-key menu-bar-games-menu [gomoku]
 645   '(menu-item "Gomoku"  gomoku
 646               :help "Mark 5 contiguous squares (like tic-tac-toe)"))
 647 (define-key menu-bar-games-menu [black-box]
 648   '(menu-item "Blackbox"  blackbox
 649               :help "Find balls in a black box by shooting rays"))
 650 (define-key menu-bar-games-menu [adventure]
 651   '(menu-item "Adventure"  dunnet
 652               :help "Dunnet, a text Adventure game for Emacs"))
 653 (define-key menu-bar-games-menu [5x5]
 654   '(menu-item "5x5" 5x5
 655               :help "Fill in all the squares on a 5x5 board"))
 656
 657 (define-key menu-bar-tools-menu [calendar]
 658   '(menu-item "Display Calendar" calendar))
 659 (define-key menu-bar-tools-menu [speedbar]
 660   '(menu-item "Display Speedbar" speedbar-frame-mode))
 661 (define-key menu-bar-tools-menu [directory-search]
 662   '(menu-item "Directory Search" eudc-tools-menu
 663               :help "Query directory servers via LDAP, CCSO PH/QI or BBDB"))
 664 (define-key menu-bar-tools-menu [compose-mail]
 665   '(menu-item "Send Mail" compose-mail
 666               :help "Send a mail message"))
 667 (define-key menu-bar-tools-menu [rmail]
 668   '(menu-item "Read Mail" read-mail-command
 669               :help "Read your mail and reply to it"))
 670 (define-key menu-bar-tools-menu [gnus]
 671   '(menu-item "Read Net News" gnus
 672               :help "Read network news groups"))
 673
 674 (define-key menu-bar-tools-menu [separator-vc]
 675   '("--"))
 676
 677 (defvar vc-menu-map (make-sparse-keymap "Version Control"))
 678 (define-key menu-bar-tools-menu [pcl-cvs]
 679   `(menu-item "PCL-CVS" ,cvs-global-menu
 680               :help "Module-level interface to CVS"))
 681 (define-key menu-bar-tools-menu [vc]
 682   (list 'menu-item "Version Control" vc-menu-map
 683         :help "Interface to RCS, CVS, SCCS"))
 684
 685 (define-key menu-bar-tools-menu [separator-compare]
 686   '("--"))
 687
 688 (define-key menu-bar-tools-menu [ediff-misc]
 689   '(menu-item "Ediff Miscellanea" menu-bar-ediff-misc-menu
 690               :help "Ediff manual, customization, sessions, etc."))
 691 (define-key menu-bar-tools-menu [epatch]
 692   '(menu-item "Apply Patch" menu-bar-epatch-menu))
 693 (define-key menu-bar-tools-menu [ediff-merge]
 694   '(menu-item "Merge" menu-bar-ediff-merge-menu
 695               :help "Merge different revisions of files/directories"))
 696 (define-key menu-bar-tools-menu [compare]
 697   '(menu-item "Compare (Ediff)" menu-bar-ediff-menu
 698               :help "Display differences between files/directories"))
 699
 700
 701 (define-key menu-bar-tools-menu [separator-spell]
 702   '("--"))
 703
 704 (define-key menu-bar-tools-menu [spell]
 705   '(menu-item "Spell Checking" ispell-menu-map))
 706
 707 (define-key menu-bar-tools-menu [separator-prog]
 708   '("--"))
 709
 710 (define-key menu-bar-tools-menu [gdb]
 711   '(menu-item "Debugger (GUD)..." gdb
 712               :help "Debug a program from withing Emacs"))
 713 (define-key menu-bar-tools-menu [shell-on-region]
 714   '(menu-item "Shell Command on Region..." shell-command-on-region
 715               :enable mark-active
 716               :help "Pass marked region to a shell command"))
 717 (define-key menu-bar-tools-menu [shell]
 718   '(menu-item "Shell Command..." shell-command
 719               :help "Invoke a shell command and catch its output"))
 720 (define-key menu-bar-tools-menu [compile]
 721   '(menu-item "Compile..." compile
 722               :help "Invoke compiler or Make, view compilation errors"))
 723 (define-key menu-bar-tools-menu [grep]
 724   '(menu-item "Search Files (Grep)..." grep
 725               :help "Search files for strings or regexps (with Grep)"))
 726
 727 \f
 728 ;; The "Help" menu items
 729
 730 (defvar menu-bar-describe-menu (make-sparse-keymap "Describe"))
 731
 732 (define-key menu-bar-describe-menu [mule-diag]
 733   '(menu-item "Show All of Mule Status" mule-diag
 734               :visible default-enable-multibyte-characters
 735               :help "Display multilingual environment settings"))
 736 (define-key menu-bar-describe-menu [describe-coding-system]
 737   '(menu-item "Describe Coding System..." describe-coding-system
 738               :visible default-enable-multibyte-characters))
 739 (define-key menu-bar-describe-menu [describe-input-method]
 740   '(menu-item "Describe Input Method..." describe-input-method
 741               :visible default-enable-multibyte-characters
 742               :help "Keyboard layout for specific input method"))
 743 (define-key menu-bar-describe-menu [describe-language-environment]
 744   (list 'menu-item "Describe Language Environment"
 745         describe-language-environment-map
 746         :help "Show multilingual settings for a specific language"))
 747
 748 (define-key menu-bar-describe-menu [separator-desc-mule]
 749   '("--"))
 750
 751 (define-key menu-bar-describe-menu [list-keybindings]
 752   '(menu-item "List Key Bindings" describe-bindings
 753               :help "Display a list of all current keybindings"))
 754 (define-key menu-bar-describe-menu [list-keybindings]
 755   '(menu-item "List Key Bindings" describe-bindings
 756               :help "Display a list of all current keybindings"))
 757 (define-key menu-bar-describe-menu [describe-variable]
 758   '(menu-item "Describe Variable..." describe-variable
 759               :help "Display documentation of variable/option"))
 760 (define-key menu-bar-describe-menu [describe-function]
 761   '(menu-item "Describe Function..." describe-function
 762               :help "Display documentation of function/command"))
 763 (define-key menu-bar-describe-menu [describe-key]
 764   '(menu-item "Describe Key..." describe-key
 765               ;; Users typically don't identify keys and menu items...
 766               :help "Display documentation of command bound to a \
 767 key (or menu-item)"))
 768 (define-key menu-bar-describe-menu [apropos-variables]
 769   '(menu-item "Apropos Variables..." apropos-variable
 770               :help "List variables whose names match a regexp"))
 771 (define-key menu-bar-describe-menu [apropos-commands]
 772   '(menu-item "Apropos Commands..." apropos-command
 773               :help "List commands whose names match a regexp"))
 774 (define-key menu-bar-describe-menu [describe-mode]
 775   '(menu-item "Describe Buffer Modes" describe-mode
 776               :help "Describe this buffer's major and minor mode"))
 777
 778 (defvar menu-bar-manuals-menu (make-sparse-keymap "Manuals"))
 779
 780 (define-key menu-bar-manuals-menu [man]
 781   '(menu-item "Read Man Page..." manual-entry
 782               :help "Man-page docs for external commands and libraries"))
 783 (define-key menu-bar-manuals-menu [sep2]
 784   '("--"))
 785 (define-key menu-bar-manuals-menu [info]
 786   '(menu-item "Browse Manuals with Info" Info-directory
 787               :help "Read any of the installed manuals"))
 788 (define-key menu-bar-manuals-menu [command]
 789   '(menu-item "Find Command in Manual" Info-goto-emacs-command-node
 790               :help "Display manual section that describes a command"))
 791 (define-key menu-bar-manuals-menu [key]
 792   '(menu-item "Find Key in Manual" Info-goto-emacs-key-command-node
 793               :help "Display manual section that describes a key"))
 794
 795 (define-key menu-bar-help-menu [eliza]
 796   '(menu-item "Emacs Psychiatrist" doctor
 797               :help "Our doctor will help you feel better"))
 798 (define-key menu-bar-help-menu [sep3]
 799   '("--"))
 800 (define-key menu-bar-help-menu [describe-no-warranty]
 801   '(menu-item "(Non)Warranty" describe-no-warranty
 802               :help "Explain that Emacs has NO WARRANTY"))
 803 (define-key menu-bar-help-menu [describe-copying]
 804   '(menu-item "Copying Conditions" describe-copying
 805               :help "Show the Emacs license (GPL)"))
 806 (define-key menu-bar-help-menu [describe-distribution]
 807   '(menu-item "Getting New Versions" describe-distribution
 808               :help "How to get latest versions of Emacs"))
 809 (define-key menu-bar-help-menu [emacs-version]
 810   '(menu-item "Show Emacs Version" emacs-version))
 811 (define-key menu-bar-help-menu [sep2]
 812   '("--"))
 813 (define-key menu-bar-help-menu [finder-by-keyword]
 814   '(menu-item "Find Emacs Packages..." finder-by-keyword
 815               :help "Find packages and features by keyword"))
 816 (define-key menu-bar-help-menu [describe]
 817   (list 'menu-item "Describe" menu-bar-describe-menu
 818         :help "Describe commands, variables, keys"))
 819 (define-key menu-bar-help-menu [manuals]
 820   (list 'menu-item "Manuals" menu-bar-manuals-menu))
 821 (define-key menu-bar-help-menu [sep1]
 822   '("--"))
 823 (define-key menu-bar-help-menu [report-emacs-bug]
 824   '(menu-item "Send Bug Report..." report-emacs-bug
 825               :help "Send e-mail to Emacs maintainers"))
 826 (define-key menu-bar-help-menu [emacs-manual]
 827   '(menu-item "Read the Emacs manual"
 828               (lambda () (interactive) (info "emacs"))))
 829 (define-key menu-bar-help-menu [emacs-problems]
 830   '(menu-item "Emacs Known Problems" view-emacs-problems))
 831 (define-key menu-bar-help-menu [emacs-news]
 832   '(menu-item "Emacs News" view-emacs-news
 833               :help "New features of this version"))
 834 (define-key menu-bar-help-menu [emacs-faq]
 835   '(menu-item "Emacs FAQ" view-emacs-FAQ))
 836 (define-key menu-bar-help-menu [emacs-tutorial]
 837   '(menu-item "Emacs Tutorial" help-with-tutorial
 838               :help "Learn how to use Emacs"))
 839
 840 (defun kill-this-buffer ()      ; for the menubar
 841   "Kill the current buffer."
 842   (interactive)
 843   (kill-buffer (current-buffer)))
 844
 845 (defun kill-this-buffer-enabled-p ()
 846   (let ((count 0)
 847         (buffers (buffer-list)))
 848     (while buffers
 849       (or (string-match "^ " (buffer-name (car buffers)))
 850           (setq count (1+ count)))
 851       (setq buffers (cdr buffers)))
 852     (and (not (window-minibuffer-p (frame-selected-window menu-updating-frame)))
 853          (> count 1))))
 854
 855 (put 'dired 'menu-enable
 856      '(not (window-minibuffer-p (frame-selected-window menu-updating-frame))))
 857
 858 ;; Permit deleting frame if it would leave a visible or iconified frame.
 859 (defun delete-frame-enabled-p ()
 860   "Return non-nil if `delete-frame' should be enabled in the menu bar."
 861   (let ((frames (frame-list))
 862         (count 0))
 863     (while frames
 864       (if (frame-visible-p (car frames))
 865           (setq count (1+ count)))
 866       (setq frames (cdr frames)))
 867     (> count 1)))
 868
 869 (defcustom yank-menu-length 20
 870   "*Maximum length to display in the yank-menu."
 871   :type 'integer
 872   :group 'mouse)
 873
 874 (defun menu-bar-update-yank-menu (string old)
 875   (let ((front (car (cdr yank-menu)))
 876         (menu-string (if (<= (length string) yank-menu-length)
 877                          string
 878                        (concat
 879                         (substring string 0 (/ yank-menu-length 2))
 880                         "..."
 881                         (substring string (- (/ yank-menu-length 2)))))))
 882     ;; Don't let the menu string be all dashes
 883     ;; because that has a special meaning in a menu.
 884     (if (string-match "\\`-+\\'" menu-string)
 885         (setq menu-string (concat menu-string " ")))
 886     ;; If we're supposed to be extending an existing string, and that
 887     ;; string really is at the front of the menu, then update it in place.
 888     (if (and old (or (eq old (car front))
 889                      (string= old (car front))))
 890         (progn
 891           (setcar front string)
 892           (setcar (cdr front) menu-string))
 893       (setcdr yank-menu
 894               (cons
 895                (cons string (cons menu-string 'menu-bar-select-yank))
 896                (cdr yank-menu)))))
 897   (if (> (length (cdr yank-menu)) kill-ring-max)
 898       (setcdr (nthcdr kill-ring-max yank-menu) nil)))
 899
 900 (put 'menu-bar-select-yank 'apropos-inhibit t)
 901 (defun menu-bar-select-yank ()
 902   (interactive "*")
 903   (push-mark (point))
 904   (insert last-command-event))
 905 \f
 906 (defvar list-buffers-directory nil)
 907
 908 (defvar menu-bar-update-buffers-maxbuf)
 909
 910 (defun menu-bar-select-buffer ()
 911   (interactive)
 912   (switch-to-buffer last-command-event))
 913
 914 (defun menu-bar-select-frame ()
 915   (interactive)
 916   (make-frame-visible last-command-event)
 917   (raise-frame last-command-event)
 918   (select-frame last-command-event))
 919
 920 (defun menu-bar-update-buffers-1 (elt)
 921   (cons (format
 922          (format "%%%ds  %%s%%s  %%s" menu-bar-update-buffers-maxbuf)
 923          (cdr elt)
 924          (if (buffer-modified-p (car elt))
 925              "*" " ")
 926          (save-excursion
 927            (set-buffer (car elt))
 928            (if buffer-read-only "%" " "))
 929          (let ((file
 930                 (or (buffer-file-name (car elt))
 931                     (save-excursion
 932                       (set-buffer (car elt))
 933                       list-buffers-directory)
 934                     "")))
 935            (setq file (or (file-name-directory file)
 936                           ""))
 937            (if (> (length file) 20)
 938                (setq file (concat "..." (substring file -17))))
 939            file))
 940         (car elt)))
 941
 942 (defvar menu-bar-buffers-menu-list-buffers-entry nil)
 943
 944 (defun menu-bar-update-buffers ()
 945   ;; If user discards the Buffers item, play along.
 946   (and (lookup-key (current-global-map) [menu-bar buffer])
 947        (frame-or-buffer-changed-p)
 948        (let ((buffers (buffer-list))
 949              (frames (frame-list))
 950              (maxlen 0)
 951              buffers-menu frames-menu)
 952          ;; If requested, list only the N most recently selected buffers.
 953          (if (and (integerp buffers-menu-max-size)
 954                   (> buffers-menu-max-size 1))
 955              (if (> (length buffers) buffers-menu-max-size)
 956                  (setcdr (nthcdr buffers-menu-max-size buffers) nil)))
 957
 958          ;; Make the menu of buffers proper.
 959          (setq buffers-menu
 960                (cons "Select Buffer"
 961                      (let* ((buffer-list
 962                              (mapcar 'list buffers))
 963                             tail
 964                             (menu-bar-update-buffers-maxbuf 0)
 965                             alist
 966                             head)
 967                        ;; Put into each element of buffer-list
 968                        ;; the name for actual display,
 969                        ;; perhaps truncated in the middle.
 970                        (setq tail buffer-list)
 971                        (while tail
 972                          (let ((name (buffer-name (car (car tail)))))
 973                            (setcdr (car tail)
 974                                    (if (> (length name) 27)
 975                                        (concat (substring name 0 12)
 976                                                "..."
 977                                                (substring name -12))
 978                                      name)))
 979                          (setq tail (cdr tail)))
 980                        ;; Compute the maximum length of any name.
 981                        (setq tail buffer-list)
 982                        (while tail
 983                          (or (eq ?\ (aref (cdr (car tail)) 0))
 984                              (setq menu-bar-update-buffers-maxbuf
 985                                    (max menu-bar-update-buffers-maxbuf
 986                                         (length (cdr (car tail))))))
 987                          (setq tail (cdr tail)))
 988                        ;; Set ALIST to an alist of the form
 989                        ;; ITEM-STRING . BUFFER
 990                        (setq tail buffer-list)
 991                        (while tail
 992                          (let ((elt (car tail)))
 993                            (or (eq ?\ (aref (cdr elt) 0))
 994                                (setq alist (cons
 995                                             (menu-bar-update-buffers-1 elt)
 996                                             alist)))
 997                            (and alist (> (length (car (car alist))) maxlen)
 998                                 (setq maxlen (length (car (car alist))))))
 999                          (setq tail (cdr tail)))
1000                        (setq alist (nreverse alist))
1001                        ;; Make the menu item for list-buffers
1002                        ;; or reuse the one we already have.
1003                        ;; The advantage in reusing one
1004                        ;; is that it already has the keyboard equivalent
1005                        ;; cached, so we save the time to look that up again.
1006                        (or menu-bar-buffers-menu-list-buffers-entry
1007                            (setq menu-bar-buffers-menu-list-buffers-entry
1008                                  (cons
1009                                   'list-buffers
1010                                   (cons
1011                                    ""
1012                                    'list-buffers))))
1013                        ;; Update the item string for menu's new width.
1014                        (setcar (cdr menu-bar-buffers-menu-list-buffers-entry)
1015                                (concat (make-string (max (- (/ maxlen 2) 8) 0)
1016                                                     ?\ )
1017                                        "List All Buffers"))
1018                        ;; Now make the actual list of items,
1019                        ;; ending with the list-buffers item.
1020                        (nconc (mapcar '(lambda (pair)
1021                                          ;; This is somewhat risque, to use
1022                                          ;; the buffer name itself as the event
1023                                          ;; type to define, but it works.
1024                                          ;; It would not work to use the buffer
1025                                          ;; since a buffer as an event has its
1026                                          ;; own meaning.
1027                                          (nconc (list (buffer-name (cdr pair))
1028                                                       (car pair)
1029                                                       (cons nil nil))
1030                                                 'menu-bar-select-buffer))
1031                                       alist)
1032                               (list menu-bar-buffers-menu-list-buffers-entry)))))
1033
1034
1035          ;; Make a Frames menu if we have more than one frame.
1036          (if (cdr frames)
1037              (let ((name (concat (make-string (max (- (/ maxlen 2) 3) 0)
1038                                               ?\ )
1039                                  "Frames"))
1040                    (frames-menu
1041                     (cons 'keymap
1042                           (cons "Select Frame"
1043                                 (mapcar '(lambda (frame)
1044                                            (nconc (list frame
1045                                                         (cdr (assq 'name
1046                                                                    (frame-parameters frame)))
1047                                                         (cons nil nil))
1048                                                   'menu-bar-select-frame))
1049                                         frames)))))
1050                ;; Put it underneath the Buffers menu.
1051                (setq buffers-menu (cons (cons 'frames (cons name frames-menu))
1052                                         buffers-menu))))
1053          (if buffers-menu
1054              (setq buffers-menu (cons 'keymap buffers-menu)))
1055          (define-key (current-global-map) [menu-bar buffer]
1056            (cons "Buffers" buffers-menu)))))
1057
1058 (add-hook 'menu-bar-update-hook 'menu-bar-update-buffers)
1059
1060 (menu-bar-update-buffers)
1061
1062 ;; this version is too slow
1063 ;;;(defun format-buffers-menu-line (buffer)
1064 ;;;  "Returns a string to represent the given buffer in the Buffer menu.
1065 ;;;nil means the buffer shouldn't be listed.  You can redefine this."
1066 ;;;  (if (string-match "\\` " (buffer-name buffer))
1067 ;;;      nil
1068 ;;;    (save-excursion
1069 ;;;     (set-buffer buffer)
1070 ;;;     (let ((size (buffer-size)))
1071 ;;;       (format "%s%s %-19s %6s %-15s %s"
1072 ;;;            (if (buffer-modified-p) "*" " ")
1073 ;;;            (if buffer-read-only "%" " ")
1074 ;;;            (buffer-name)
1075 ;;;            size
1076 ;;;            mode-name
1077 ;;;            (or (buffer-file-name) ""))))))
1078 \f
1079 ;;; Set up a menu bar menu for the minibuffer.
1080
1081 (mapcar
1082  (function
1083   (lambda (map)
1084     (define-key map [menu-bar minibuf]
1085       (cons "Minibuf" (make-sparse-keymap "Minibuf")))))
1086  (list minibuffer-local-ns-map
1087        minibuffer-local-must-match-map
1088        minibuffer-local-isearch-map
1089        minibuffer-local-map
1090        minibuffer-local-completion-map))
1091
1092 (mapcar
1093  (function
1094   (lambda (map)
1095     (define-key map [menu-bar minibuf ?\?]
1096       (list 'menu-item "List Completions" 'minibuffer-completion-help
1097             :help "Display all possible completions"))
1098     (define-key map [menu-bar minibuf space]
1099       (list 'menu-item "Complete Word" 'minibuffer-complete-word
1100             :help "Complete at most one word"))
1101     (define-key map [menu-bar minibuf tab]
1102       (list 'menu-item "Complete" 'minibuffer-complete
1103             :help "Complete as far as possible"))
1104     ))
1105  (list minibuffer-local-must-match-map
1106        minibuffer-local-completion-map))
1107
1108 (mapcar
1109  (function
1110   (lambda (map)
1111     (define-key map [menu-bar minibuf quit]
1112       (list 'menu-item "Quit" 'keyboard-escape-quit
1113             :help "Abort input and exit minibuffer"))
1114     (define-key map [menu-bar minibuf return]
1115       (list 'menu-item "Enter" 'exit-minibuffer
1116             :help "Terminate input and exit minibuffer"))
1117     ))
1118  (list minibuffer-local-ns-map
1119        minibuffer-local-must-match-map
1120        minibuffer-local-isearch-map
1121        minibuffer-local-map
1122        minibuffer-local-completion-map))
1123 \f
1124 (defcustom menu-bar-mode nil
1125   "Toggle display of a menu bar on each frame.
1126 Setting this variable directly does not take effect;
1127 use either \\[customize] or the function `menu-bar-mode'."
1128   :set (lambda (symbol value)
1129          (menu-bar-mode (or value 0)))
1130   :initialize 'custom-initialize-default
1131   :type 'boolean
1132   :group 'frames)
1133
1134 (defun menu-bar-mode (flag)
1135   "Toggle display of a menu bar on each frame.
1136 This command applies to all frames that exist and frames to be
1137 created in the future.
1138 With a numeric argument, if the argument is positive,
1139 turn on menu bars; otherwise, turn off menu bars."
1140  (interactive "P")
1141
1142   ;; Make menu-bar-mode and default-frame-alist consistent.
1143   (let ((default (assq 'menu-bar-lines default-frame-alist)))
1144     (if default
1145         (setq menu-bar-mode (not (eq (cdr default) 0)))
1146       (setq default-frame-alist
1147             (cons (cons 'menu-bar-lines (if menu-bar-mode 1 0))
1148                   default-frame-alist))))
1149
1150   ;; Toggle or set the mode, according to FLAG.
1151  (setq menu-bar-mode (if (null flag) (not menu-bar-mode)
1152                        (> (prefix-numeric-value flag) 0)))
1153
1154  ;; Apply it to default-frame-alist.
1155  (let ((parameter (assq 'menu-bar-lines default-frame-alist)))
1156    (if (consp parameter)
1157        (setcdr parameter (if menu-bar-mode 1 0))
1158      (setq default-frame-alist
1159            (cons (cons 'menu-bar-lines (if menu-bar-mode 1 0))
1160                  default-frame-alist))))
1161
1162  ;; Apply it to existing frames.
1163  (let ((frames (frame-list)))
1164    (while frames
1165      (let ((height (cdr (assq 'height (frame-parameters (car frames))))))
1166        (modify-frame-parameters (car frames)
1167                                 (list (cons 'menu-bar-lines
1168                                           (if menu-bar-mode 1 0))))
1169        (modify-frame-parameters (car frames)
1170                                 (list (cons 'height height))))
1171      (setq frames (cdr frames)))))
1172
1173 (provide 'menu-bar)
1174
1175 ;;; menu-bar.el ends here