lisp/menu-bar.el

   1 ;;; menu-bar.el --- define a default menu bar
   2
   3 ;; Copyright (C) 1993, 1994, 1995, 2000, 2001, 2002 Free Software Foundation, Inc.
   4
   5 ;; Author: RMS
   6 ;; Maintainer: FSF
   7 ;; Keywords: internal, mouse
   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 ;;; Commentary:
  29
  30 ;;; Code:
  31
  32 ;;; User options:
  33
  34 (defcustom buffers-menu-max-size 10
  35   "*Maximum number of entries which may appear on the Buffers menu.
  36 If this is 10, then only the ten most-recently-selected buffers are shown.
  37 If this is nil, then all buffers are shown.
  38 A large number or nil slows down menu responsiveness."
  39   :type '(choice integer
  40                  (const :tag "All" nil))
  41   :group 'mouse)
  42
  43 ;; Don't clobber an existing menu-bar keymap, to preserve any menu-bar key
  44 ;; definitions made in loaddefs.el.
  45 (or (lookup-key global-map [menu-bar])
  46     (define-key global-map [menu-bar] (make-sparse-keymap "menu-bar")))
  47 (defvar menu-bar-help-menu (make-sparse-keymap "Help"))
  48
  49 ;; Force Help item to come last, after the major mode's own items.
  50 ;; The symbol used to be called `help', but that gets confused with the
  51 ;; help key.
  52 (setq menu-bar-final-items '(help-menu))
  53
  54 (define-key global-map [menu-bar help-menu] (cons "Help" menu-bar-help-menu))
  55 (defvar menu-bar-tools-menu (make-sparse-keymap "Tools"))
  56 (define-key global-map [menu-bar tools] (cons "Tools" menu-bar-tools-menu))
  57 ;; This definition is just to show what this looks like.
  58 ;; It gets overridden below when menu-bar-update-buffers is called.
  59 (define-key global-map [menu-bar buffer]
  60   (cons "Buffers" (make-sparse-keymap "Buffers")))
  61 (defvar menu-bar-options-menu (make-sparse-keymap "Options"))
  62 (define-key global-map [menu-bar options]
  63   (cons "Options" menu-bar-options-menu))
  64 (defvar menu-bar-edit-menu (make-sparse-keymap "Edit"))
  65 (define-key global-map [menu-bar edit] (cons "Edit" menu-bar-edit-menu))
  66 (defvar menu-bar-files-menu (make-sparse-keymap "File"))
  67 (define-key global-map [menu-bar files] (cons "File" menu-bar-files-menu))
  68
  69 ;; This alias is for compatibility with 19.28 and before.
  70 (defvar menu-bar-file-menu menu-bar-files-menu)
  71
  72 ;; This is referenced by some code below; it is defined in uniquify.el
  73 (defvar uniquify-buffer-name-style)
  74
  75 \f
  76 ;; The "File" menu items
  77 (define-key menu-bar-files-menu [exit-emacs]
  78   '(menu-item "Exit Emacs" save-buffers-kill-emacs
  79               :help "Save unsaved buffers, then exit"))
  80
  81 (define-key menu-bar-files-menu [separator-exit]
  82   '("--"))
  83
  84 ;; Don't use delete-frame as event name because that is a special
  85 ;; event.
  86 (define-key menu-bar-files-menu [delete-this-frame]
  87   '(menu-item "Delete Frame" delete-frame
  88               :visible (fboundp 'delete-frame)
  89               :enable (delete-frame-enabled-p)
  90               :help "Delete currently selected frame"))
  91 (define-key menu-bar-files-menu [make-frame-on-display]
  92   '(menu-item "New Frame on Display..." make-frame-on-display
  93               :visible (fboundp 'make-frame-on-display)
  94               :help "Open a new frame on another display"))
  95 (define-key menu-bar-files-menu [make-frame]
  96   '(menu-item "New Frame" make-frame-command
  97               :visible (fboundp 'make-frame-command)
  98               :help "Open a new frame"))
  99
 100 (define-key menu-bar-files-menu [one-window]
 101   '(menu-item "Unsplit Windows" delete-other-windows
 102               :enable (not (one-window-p t nil))
 103               :help "Make selected window fill its frame"))
 104
 105 (define-key menu-bar-files-menu [split-window]
 106   '(menu-item "Split Window" split-window-vertically
 107               :help "Split selected window in two"))
 108
 109 (define-key menu-bar-files-menu [separator-window]
 110   '(menu-item "--"))
 111
 112 (define-key menu-bar-files-menu [ps-print-region]
 113   '(menu-item "Postscript Print Region (B+W)" ps-print-region
 114               :enable mark-active
 115               :help "Pretty-print marked region in black and white to PostScript printer"))
 116 (define-key menu-bar-files-menu [ps-print-buffer]
 117   '(menu-item "Postscript Print Buffer (B+W)" ps-print-buffer
 118               :help "Pretty-print current buffer in black and white to PostScript printer"))
 119 (define-key menu-bar-files-menu [ps-print-region-faces]
 120   '(menu-item "Postscript Print Region" ps-print-region-with-faces
 121               :enable mark-active
 122               :help "Pretty-print marked region to PostScript printer"))
 123 (define-key menu-bar-files-menu [ps-print-buffer-faces]
 124   '(menu-item "Postscript Print Buffer" ps-print-buffer-with-faces
 125               :help "Pretty-print current buffer to PostScript printer"))
 126 (define-key menu-bar-files-menu [print-region]
 127   '(menu-item "Print Region" print-region
 128               :enable mark-active
 129               :help "Print region between mark and current position"))
 130 (define-key menu-bar-files-menu [print-buffer]
 131   '(menu-item "Print Buffer" print-buffer
 132               :help "Print current buffer with page headings"))
 133
 134 (define-key menu-bar-files-menu [separator-print]
 135   '(menu-item "--"))
 136
 137 (define-key menu-bar-files-menu [recover-session]
 138   '(menu-item "Recover Crashed Session..." recover-session
 139               :enable (and auto-save-list-file-prefix
 140                            (file-directory-p
 141                             (file-name-directory auto-save-list-file-prefix))
 142                            (directory-files
 143                             (file-name-directory auto-save-list-file-prefix)
 144                             nil
 145                             (concat "\\`"
 146                                     (regexp-quote
 147                                      (file-name-nondirectory
 148                                       auto-save-list-file-prefix)))
 149                             t))
 150               :help "Recover edits from a crashed session"))
 151 (define-key menu-bar-files-menu [revert-buffer]
 152   '(menu-item "Revert Buffer" revert-buffer
 153               :enable (or revert-buffer-function
 154                           revert-buffer-insert-file-contents-function
 155                           (and (buffer-file-name)
 156                                (or (buffer-modified-p)
 157                                    (not (verify-visited-file-modtime
 158                                          (current-buffer))))))
 159               :help "Re-read current buffer from its file"))
 160 (define-key menu-bar-files-menu [write-file]
 161   '(menu-item "Save Buffer As..." write-file
 162               :enable (not (window-minibuffer-p
 163                             (frame-selected-window menu-updating-frame)))
 164               :help "Write current buffer to another file"))
 165 (define-key menu-bar-files-menu [save-buffer]
 166   '(menu-item "Save (current buffer)" save-buffer
 167               :enable (and (buffer-modified-p)
 168                            (buffer-file-name)
 169                            (not (window-minibuffer-p
 170                                  (frame-selected-window menu-updating-frame))))
 171               :help "Save current buffer to its file"))
 172
 173 (define-key menu-bar-files-menu [separator-save]
 174   '(menu-item "--"))
 175
 176 (define-key menu-bar-files-menu [kill-buffer]
 177   '(menu-item "Close (current buffer)" kill-this-buffer
 178               :enable (kill-this-buffer-enabled-p)
 179               :help "Discard current buffer"))
 180 (define-key menu-bar-files-menu [insert-file]
 181   '(menu-item "Insert File..." insert-file
 182               :enable (not (window-minibuffer-p
 183                             (frame-selected-window menu-updating-frame)))
 184               :help "Insert another file into current buffer"))
 185 (define-key menu-bar-files-menu [dired]
 186   '(menu-item "Open Directory..." dired
 187               :help "Read a directory, operate on its files"))
 188 (define-key menu-bar-files-menu [open-file]
 189   '(menu-item "Open File..." find-file
 190               :enable (not (window-minibuffer-p
 191                             (frame-selected-window menu-updating-frame)))
 192               :help "Read a file into an Emacs buffer"))
 193
 194 \f
 195 ;; The "Edit" menu items
 196 (defun nonincremental-search-forward (string)
 197   "Read a string and search for it nonincrementally."
 198   (interactive "sSearch for string: ")
 199   (if (equal string "")
 200       (search-forward (car search-ring))
 201     (isearch-update-ring string nil)
 202     (search-forward string)))
 203
 204 (defun nonincremental-search-backward (string)
 205   "Read a string and search backward for it nonincrementally."
 206   (interactive "sSearch for string: ")
 207   (if (equal string "")
 208       (search-backward (car search-ring))
 209     (isearch-update-ring string nil)
 210     (search-backward string)))
 211
 212 (defun nonincremental-re-search-forward (string)
 213   "Read a regular expression and search for it nonincrementally."
 214   (interactive "sSearch for regexp: ")
 215   (if (equal string "")
 216       (re-search-forward (car regexp-search-ring))
 217     (isearch-update-ring string t)
 218     (re-search-forward string)))
 219
 220 (defun nonincremental-re-search-backward (string)
 221   "Read a regular expression and search backward for it nonincrementally."
 222   (interactive "sSearch for regexp: ")
 223   (if (equal string "")
 224       (re-search-backward (car regexp-search-ring))
 225     (isearch-update-ring string t)
 226     (re-search-backward string)))
 227
 228 (defun nonincremental-repeat-search-forward ()
 229   "Search forward for the previous search string."
 230   (interactive)
 231   (if (null search-ring)
 232       (error "No previous search"))
 233   (search-forward (car search-ring)))
 234
 235 (defun nonincremental-repeat-search-backward ()
 236   "Search backward for the previous search string."
 237   (interactive)
 238   (if (null search-ring)
 239       (error "No previous search"))
 240   (search-backward (car search-ring)))
 241
 242 (defun nonincremental-repeat-re-search-forward ()
 243   "Search forward for the previous regular expression."
 244   (interactive)
 245   (if (null regexp-search-ring)
 246       (error "No previous search"))
 247   (re-search-forward (car regexp-search-ring)))
 248
 249 (defun nonincremental-repeat-re-search-backward ()
 250   "Search backward for the previous regular expression."
 251   (interactive)
 252   (if (null regexp-search-ring)
 253       (error "No previous search"))
 254   (re-search-backward (car regexp-search-ring)))
 255
 256 (defvar menu-bar-search-menu (make-sparse-keymap "Search"))
 257 (defvar menu-bar-adv-search-menu
 258   (make-sparse-keymap "Advanced Search/Replace"))
 259
 260 (define-key menu-bar-adv-search-menu [tags-continue]
 261   '(menu-item "Continue Tags Search/Replace" tags-loop-continue
 262               :help "Continue last tags search/replace operation"))
 263 (define-key menu-bar-adv-search-menu [tags-repl]
 264   '(menu-item "Replace in all tagged files" tags-query-replace
 265               :help "Interactively replace a regexp in all tagged files"))
 266 (define-key menu-bar-adv-search-menu [tags-srch]
 267   '(menu-item "Search in all tagged files" tags-search
 268               :help "Search for a regexp in all tagged files"))
 269
 270 (define-key menu-bar-adv-search-menu [separator-tag-search]
 271   '(menu-item "--"))
 272
 273 (define-key menu-bar-adv-search-menu [query-replace-regexp]
 274   '(menu-item "Replace Regexp..." query-replace-regexp
 275               :enable (not buffer-read-only)
 276               :help "Replace regular expression, ask about each occurrence"))
 277 (define-key menu-bar-adv-search-menu [repeat-regexp-back]
 278   '(menu-item "Repeat Regexp Backwards"
 279               nonincremental-repeat-re-search-backward
 280               :enable regexp-search-ring
 281               :help "Repeat last regular expression search backwards"))
 282 (define-key menu-bar-adv-search-menu [repeat-regexp-fwd]
 283   '(menu-item "Repeat Regexp" nonincremental-repeat-re-search-forward
 284               :enable regexp-search-ring
 285               :help "Repeat last regular expression search forward"))
 286 (define-key menu-bar-adv-search-menu [re-search-backward]
 287   '(menu-item "Search Regexp Backwards..." nonincremental-re-search-backward
 288               :help "Search backwards for a regular expression"))
 289 (define-key menu-bar-adv-search-menu [re-search-forward]
 290   '(menu-item "Search Regexp..." nonincremental-re-search-forward
 291               :help "Search forward for a regular expression"))
 292 (define-key menu-bar-adv-search-menu [separator-tag-isearch]
 293   '(menu-item "--"))
 294 (define-key menu-bar-adv-search-menu [isearch-backward]
 295   '(menu-item "Incremental Search Backwards..." isearch-backward
 296               :help "Search backwards for a string as you type it"))
 297 (define-key menu-bar-adv-search-menu [isearch-forward]
 298   '(menu-item "Incremental Search..." isearch-forward
 299               :help "Search forward for a string as you type it"))
 300 (define-key menu-bar-search-menu [re-search]
 301   (list 'menu-item "Advanced Search/Replace" menu-bar-adv-search-menu
 302               :help "Regexp and Tags search and replace"))
 303
 304 (define-key menu-bar-search-menu [query-replace]
 305   '(menu-item "Replace..." query-replace
 306               :enable (not buffer-read-only)
 307               :help "Replace string interactively, ask about each occurrence"))
 308 (define-key menu-bar-search-menu [repeat-search-back]
 309   '(menu-item "Repeat Backwards" nonincremental-repeat-search-backward
 310               :enable search-ring
 311               :help "Repeat last search backwards"))
 312 (define-key menu-bar-search-menu [repeat-search-fwd]
 313   '(menu-item "Repeat Search" nonincremental-repeat-search-forward
 314               :enable search-ring
 315               :help "Repeat last search forward"))
 316 (define-key menu-bar-search-menu [search-backward]
 317   '(menu-item "Search Backwards..." nonincremental-search-backward
 318               :help "Search backwards for a string"))
 319 (define-key menu-bar-search-menu [search-forward]
 320   '(menu-item "Search..." nonincremental-search-forward
 321               :help "Search forward for a string"))
 322
 323 ;;; Assemble the top-level Edit menu items.
 324 (define-key menu-bar-edit-menu [props]
 325   '(menu-item "Text Properties" facemenu-menu
 326               :help "Change properties of text in region"))
 327
 328 (define-key menu-bar-edit-menu [fill]
 329   '(menu-item "Fill" fill-region
 330               :enable (and mark-active (not buffer-read-only))
 331               :help
 332               "Fill text in region to fit between left and right margin"))
 333
 334 (define-key menu-bar-edit-menu [separator-bookmark]
 335   '(menu-item "--"))
 336
 337 (define-key menu-bar-edit-menu [bookmark]
 338   '(menu-item "Bookmarks" menu-bar-bookmark-map
 339               :help "Record positions and jump between them"))
 340
 341 (defvar menu-bar-goto-menu (make-sparse-keymap "Go To"))
 342
 343 (define-key menu-bar-goto-menu [set-tags-name]
 344   '(menu-item "Set Tags File Name" visit-tags-table
 345               :help "Tell Tags commands which tag table file to use"))
 346
 347 (define-key menu-bar-goto-menu [separator-tag-file]
 348   '(menu-item "--"))
 349
 350 (define-key menu-bar-goto-menu [apropos-tags]
 351   '(menu-item "Tags Apropos" tags-apropos
 352               :help "Find function/variables whose names match regexp"))
 353 (define-key menu-bar-goto-menu [next-tag-otherw]
 354   '(menu-item "Next Tag in Other Window"
 355               (lambda () (interactive)  (find-tag-other-window nil t))
 356               :enable (and (boundp 'tags-location-ring)
 357                            (not (ring-empty-p tags-location-ring)))
 358               :help "Find next function/variable matching last tag name in another window"))
 359 (define-key menu-bar-goto-menu [next-tag]
 360   '(menu-item "Find Next Tag"
 361               (lambda () (interactive) (find-tag nil t))
 362               :enable (and (boundp 'tags-location-ring)
 363                            (not (ring-empty-p tags-location-ring)))
 364               :help "Find next function/variable matching last tag name"))
 365 (define-key menu-bar-goto-menu [find-tag-otherw]
 366   '(menu-item "Find Tag in Other Window..." find-tag-other-window
 367               :help "Find function/variable definition in another window"))
 368 (define-key menu-bar-goto-menu [find-tag]
 369   '(menu-item "Find Tag..." find-tag
 370               :help "Find definition of function or variable"))
 371
 372 (define-key menu-bar-goto-menu [separator-tags]
 373   '(menu-item "--"))
 374
 375 (define-key menu-bar-goto-menu [end-of-buf]
 376   '(menu-item "Goto End of Buffer" end-of-buffer))
 377 (define-key menu-bar-goto-menu [beg-of-buf]
 378   '(menu-item "Goto Beginning of Buffer" beginning-of-buffer))
 379 (define-key menu-bar-goto-menu [go-to-pos]
 380   '(menu-item "Goto Buffer Position..." goto-char
 381               :help "Read a number N and go to buffer position N"))
 382 (define-key menu-bar-goto-menu [go-to-line]
 383   '(menu-item "Goto Line..." goto-line
 384               :help "Read a line number and go to that line"))
 385
 386 (define-key menu-bar-edit-menu [goto]
 387   (list 'menu-item "Go To" menu-bar-goto-menu))
 388
 389 (define-key menu-bar-edit-menu [search]
 390   (list 'menu-item "Search" menu-bar-search-menu))
 391
 392 (define-key menu-bar-edit-menu [separator-search]
 393   '(menu-item "--"))
 394
 395 (define-key menu-bar-edit-menu [mark-whole-buffer]
 396   '(menu-item "Select All" mark-whole-buffer
 397               :help "Mark the whole buffer for a subsequent cut/copy."))
 398 (define-key menu-bar-edit-menu [clear]
 399   '(menu-item "Clear" delete-region
 400               :enable (and mark-active
 401                            (not buffer-read-only)
 402                            (not (mouse-region-match)))
 403               :help
 404               "Delete the text in region between mark and current position"))
 405 (defvar yank-menu (cons "Select Yank" nil))
 406 (fset 'yank-menu (cons 'keymap yank-menu))
 407 (define-key menu-bar-edit-menu [select-paste]
 408   '(menu-item "Select and Paste" yank-menu
 409               :enable (and (cdr yank-menu) (not buffer-read-only))
 410               :help "Paste (yank) text cut or copied earlier"))
 411 (define-key menu-bar-edit-menu [paste]
 412   '(menu-item "Paste" yank
 413               :enable (and
 414                        ;; Emacs compiled --without-x doesn't have
 415                        ;; x-selection-exists-p.
 416                        (fboundp 'x-selection-exists-p)
 417                        (x-selection-exists-p) (not buffer-read-only))
 418               :help "Paste (yank) text most recently cut/copied"))
 419 (define-key menu-bar-edit-menu [copy]
 420   '(menu-item "Copy" menu-bar-kill-ring-save
 421               :enable mark-active
 422               :help "Copy text in region between mark and current position"
 423               :keys "\\[kill-ring-save]"))
 424 (define-key menu-bar-edit-menu [cut]
 425   '(menu-item "Cut" kill-region
 426               :enable (and mark-active (not buffer-read-only))
 427               :help
 428               "Cut (kill) text in region between mark and current position"))
 429 (define-key menu-bar-edit-menu [undo]
 430   '(menu-item "Undo" undo
 431               :enable (and (not buffer-read-only)
 432                            (not (eq t buffer-undo-list))
 433                            (if (eq last-command 'undo)
 434                                pending-undo-list
 435                              (consp buffer-undo-list)))
 436               :help "Undo last operation"))
 437
 438
 439 (defun menu-bar-kill-ring-save (beg end)
 440   (interactive "r")
 441   (if (mouse-region-match)
 442       (message "Selecting a region with the mouse does `copy' automatically")
 443     (kill-ring-save beg end)))
 444
 445 (autoload 'ispell-menu-map "ispell" nil t 'keymap)
 446
 447 ;; These are alternative definitions for the cut, paste and copy
 448 ;; menu items.  Use them if your system expects these to use the clipboard.
 449
 450 (put 'clipboard-kill-region 'menu-enable 'mark-active)
 451 (put 'clipboard-kill-ring-save 'menu-enable 'mark-active)
 452 (put 'clipboard-yank 'menu-enable
 453      '(or (and (fboundp 'x-selection-exists-p) (x-selection-exists-p))
 454           (x-selection-exists-p 'CLIPBOARD)))
 455
 456 (defun clipboard-yank ()
 457   "Insert the clipboard contents, or the last stretch of killed text."
 458   (interactive)
 459   (let ((x-select-enable-clipboard t))
 460     (yank)))
 461
 462 (defun clipboard-kill-ring-save (beg end)
 463   "Copy region to kill ring, and save in the X clipboard."
 464   (interactive "r")
 465   (let ((x-select-enable-clipboard t))
 466     (kill-ring-save beg end)))
 467
 468 (defun clipboard-kill-region (beg end)
 469   "Kill the region, and save it in the X clipboard."
 470   (interactive "r")
 471   (let ((x-select-enable-clipboard t))
 472     (kill-region beg end)))
 473
 474 (defun menu-bar-enable-clipboard ()
 475   "Make CUT, PASTE and COPY (keys and menu bar items) use the clipboard.
 476 Do the same for the keys of the same name."
 477   (interactive)
 478   ;; We can't use constant list structure here because it becomes pure,
 479   ;; and because it gets modified with cache data.
 480   (define-key menu-bar-edit-menu [paste]
 481     (cons "Paste" (cons "Paste text from clipboard" 'clipboard-yank)))
 482   (define-key menu-bar-edit-menu [copy]
 483     (cons "Copy" (cons "Copy text in region to the clipboard"
 484                        'clipboard-kill-ring-save)))
 485   (define-key menu-bar-edit-menu [cut]
 486     (cons "Cut" (cons "Delete text in region and copy it to the clipboard"
 487                       'clipboard-kill-region)))
 488
 489   (define-key global-map [f20] 'clipboard-kill-region)
 490   (define-key global-map [f16] 'clipboard-kill-ring-save)
 491   (define-key global-map [f18] 'clipboard-yank)
 492   ;; X11R6 versions
 493   (define-key global-map [cut] 'clipboard-kill-region)
 494   (define-key global-map [copy] 'clipboard-kill-ring-save)
 495   (define-key global-map [paste] 'clipboard-yank))
 496 \f
 497 ;; The "Options" menu items
 498
 499 (defvar menu-bar-custom-menu (make-sparse-keymap "Customize"))
 500
 501 (define-key menu-bar-custom-menu [customize-apropos-groups]
 502   '(menu-item "Groups Matching Regexp..." customize-apropos-groups
 503               :help "Browse groups whose names match regexp"))
 504 (define-key menu-bar-custom-menu [customize-apropos-faces]
 505   '(menu-item "Faces Matching Regexp..." customize-apropos-faces
 506               :help "Browse faces whose names match regexp"))
 507 (define-key menu-bar-custom-menu [customize-apropos-options]
 508   '(menu-item "Options Matching Regexp..." customize-apropos-options
 509               :help "Browse options whose names match regexp"))
 510 (define-key menu-bar-custom-menu [customize-apropos]
 511   '(menu-item "Settings Matching Regexp..." customize-apropos
 512               :help "Browse customizable settings whose names match regexp"))
 513 (define-key menu-bar-custom-menu [separator-1]
 514   '("--"))
 515 (define-key menu-bar-custom-menu [customize-group]
 516   '(menu-item "Specific Group..." customize-group
 517               :help "Customize settings of specific group"))
 518 (define-key menu-bar-custom-menu [customize-face]
 519   '(menu-item "Specific Face..." customize-face
 520               :help "Customize attributes of specific face"))
 521 (define-key menu-bar-custom-menu [customize-option]
 522   '(menu-item "Specific Option..." customize-option
 523               :help "Customize value of specific option"))
 524 (define-key menu-bar-custom-menu [separator-2]
 525   '("--"))
 526 (define-key menu-bar-custom-menu [customize-changed-options]
 527   '(menu-item "New Options..." customize-changed-options
 528               :help "Options added or changed in recent Emacs versions"))
 529 (define-key menu-bar-custom-menu [customize-saved]
 530   '(menu-item "Saved Options" customize-saved
 531               :help "Customize previously saved options"))
 532 (define-key menu-bar-custom-menu [separator-3]
 533   '("--"))
 534 (define-key menu-bar-custom-menu [customize-browse]
 535   '(menu-item "Browse Customization Groups" customize-browse
 536               :help "Browse all customization groups"))
 537 (define-key menu-bar-custom-menu [customize]
 538   '(menu-item "Top-level Customization Group" customize
 539               :help "The master group called `Emacs'"))
 540
 541 ;(defvar menu-bar-preferences-menu (make-sparse-keymap "Preferences"))
 542
 543 (defmacro menu-bar-make-toggle (name variable doc message help &optional props &rest body)
 544   `(progn
 545      (defun ,name ()
 546        ,(concat "Toggle whether to " (downcase (substring help 0 1))
 547                 (substring help 1) ".")
 548        (interactive)
 549        (if ,(if body `(progn . ,body)
 550               `(progn
 551                  (custom-load-symbol ',variable)
 552                  (let ((set (or (get ',variable 'custom-set) 'set-default))
 553                        (get (or (get ',variable 'custom-get) 'default-value)))
 554                    (funcall set ',variable (not (funcall get ',variable))))))
 555            (message ,message "enabled")
 556          (message ,message "disabled")))
 557      ;; The function `customize-mark-as-set' must only be called when
 558      ;; a variable is set interactively, as the purpose is to mark it
 559      ;; as a candidate for "Save Options", and we do not want to save
 560      ;; options the user have already set explicitly in his init
 561      ;; file.  Unfortunately, he could very likely call the function
 562      ;; defined above there.  So we put `customize-mark-as-set' in a
 563      ;; lambda expression.
 564      ;; -- Per Abrahamsen <abraham@dina.kvl.dk> 2002-02-11.
 565      '(menu-item ,doc (lambda ()
 566                         (interactive)
 567                         (,name)
 568                         (customize-mark-as-set ',variable))
 569                  ,@(if props props)
 570                  :help ,help
 571                  :button (:toggle . (and (default-boundp ',variable)
 572                                          (default-value ',variable))))))
 573
 574 ;;; Assemble all the top-level items of the "Options" menu
 575 (define-key menu-bar-options-menu [customize]
 576   (list 'menu-item "Customize Emacs" menu-bar-custom-menu
 577         :help "Full customization of every Emacs feature"))
 578
 579 (defun menu-bar-options-save ()
 580   "Save current values of Options menu items using Custom."
 581   (interactive)
 582   (let ((need-save nil))
 583     ;; These are set with `customize-set-variable'.
 584     (dolist (elt '(line-number-mode column-number-mode scroll-bar-mode
 585                    debug-on-quit debug-on-error menu-bar-mode tool-bar-mode
 586                    save-place uniquify-buffer-name-style fringe-mode
 587                    case-fold-search cua-mode show-paren-mode
 588                    transient-mark-mode global-font-lock-mode
 589                    display-time-mode auto-compression-mode
 590                    current-language-environment default-input-method
 591                    ;; Saving `text-mode-hook' is somewhat questionable,
 592                    ;; as we might get more than we bargain for, if
 593                    ;; other code may has added hooks as well.
 594                    ;; Nonetheless, not saving it would like be confuse
 595                    ;; more often.
 596                    ;; -- Per Abrahamsen <abraham@dina.kvl.dk> 2002-02-11.
 597                    text-mode-hook))
 598       (and (get elt 'customized-value)
 599            (customize-mark-to-save elt)
 600            (setq need-save t)))
 601     ;; Save if we changed anything.
 602     (when need-save
 603       (custom-save-all))))
 604
 605 (define-key menu-bar-options-menu [save]
 606   '(menu-item "Save Options" menu-bar-options-save
 607               :help "Save options set from the menu above"))
 608
 609 (define-key menu-bar-options-menu [custom-separator]
 610   '("--"))
 611
 612 ;; The "Show/Hide" submenu of menu "Options"
 613
 614 (defvar menu-bar-showhide-menu (make-sparse-keymap "Show/Hide"))
 615
 616 (define-key menu-bar-showhide-menu [column-number-mode]
 617   (menu-bar-make-toggle toggle-column-number-mode column-number-mode
 618                         "Show Column Numbers" "Column number mode %s"
 619                         "Show the current column number in the mode line"))
 620
 621 (define-key menu-bar-showhide-menu [line-number-mode]
 622   (menu-bar-make-toggle toggle-line-number-mode line-number-mode
 623                         "Show Line Numbers" "Line number mode %s"
 624                         "Show the current line number in the mode line"))
 625
 626 (define-key menu-bar-showhide-menu [linecolumn-separator]
 627   '("--"))
 628
 629 (defun showhide-date-time ()
 630   "Toggle whether to show date and time in the mode-line."
 631   (interactive)
 632   (if (display-time-mode)
 633       (message "Display-time mode enabled.")
 634     (message "Display-time mode disabled.")))
 635
 636 (define-key menu-bar-showhide-menu [showhide-date-time]
 637   '(menu-item "Date and Time" (lambda ()
 638                                 (interactive)
 639                                 (showhide-date-time)
 640                                 (customize-mark-as-set 'display-time-mode))
 641               :help "Display date and time in the mode line"
 642               :button (:toggle . display-time-mode)))
 643
 644 (define-key menu-bar-showhide-menu [datetime-separator]
 645   '("--"))
 646
 647 (define-key menu-bar-showhide-menu [showhide-speedbar]
 648   '(menu-item "Speedbar" speedbar-frame-mode
 649               :help "Display a Speedbar quick-navigation frame"
 650               :button (:toggle
 651                        . (and (boundp 'speedbar-frame)
 652                               (frame-live-p (symbol-value 'speedbar-frame))
 653                               (frame-visible-p
 654                                (symbol-value 'speedbar-frame))))))
 655
 656 (setq menu-bar-showhide-fringe-menu (make-sparse-keymap "Fringe"))
 657
 658 (defun menu-bar-showhide-fringe-menu-customize ()
 659   "Show customization buffer for `fringe-mode'."
 660   (interactive)
 661   (customize-variable 'fringe-mode))
 662
 663 (define-key menu-bar-showhide-fringe-menu [customize]
 664   '(menu-item "Customize" menu-bar-showhide-fringe-menu-customize
 665               :help "Detailed customization of fringe"
 666               :visible (display-graphic-p)))
 667
 668 (defun menu-bar-showhide-fringe-menu-customize-reset ()
 669   "Reset the default fringe mode."
 670   (interactive)
 671   (customize-set-variable 'fringe-mode nil))
 672
 673 (define-key menu-bar-showhide-fringe-menu [default]
 674   '(menu-item "Default" menu-bar-showhide-fringe-menu-customize-reset
 675               :help "Default width fringe on both left and right side"
 676               :visible (display-graphic-p)
 677               :button (:radio . (eq fringe-mode nil))))
 678
 679 (defun menu-bar-showhide-fringe-menu-customize-left ()
 680   "Make fringes appear only on the left."
 681   (interactive)
 682   (customize-set-variable 'fringe-mode nil '(nil . 0)))
 683
 684 (define-key menu-bar-showhide-fringe-menu [left]
 685   '(menu-item "On the Left" menu-bar-showhide-fringe-menu-customize-left
 686               :help "Fringe only on the left side"
 687               :visible (display-graphic-p)
 688               :button (:radio . (equal fringe-mode '(nil . 0)))))
 689
 690 (defun menu-bar-showhide-fringe-menu-customize-right ()
 691   "Make fringes appear only on the right."
 692   (interactive)
 693   (customize-set-variable 'fringe-mode nil '(0 . nil)))
 694
 695 (define-key menu-bar-showhide-fringe-menu [right]
 696   '(menu-item "On the Right" menu-bar-showhide-fringe-menu-customize-right
 697               :help "Fringe only on the right side"
 698               :visible (display-graphic-p)
 699               :button (:radio . (equal fringe-mode '(0 . nil)))))
 700
 701 (defun menu-bar-showhide-fringe-menu-customize-disable ()
 702   "Make fringes disappear."
 703   (interactive)
 704   (customize-set-variable 'fringe-mode nil 0))
 705
 706 (define-key menu-bar-showhide-fringe-menu [none]
 707   '(menu-item "None" menu-bar-showhide-fringe-menu-customize-disable
 708               :help "Turn off fringe"
 709               :visible (display-graphic-p)
 710               :button (:radio . (eq fringe-mode 0))))
 711
 712 (define-key menu-bar-showhide-menu [showhide-fringe]
 713   (list 'menu-item "Fringe" menu-bar-showhide-fringe-menu
 714         :visible `(display-graphic-p)
 715         :help "Select fringe mode"))
 716
 717 (defvar menu-bar-showhide-scroll-bar-menu (make-sparse-keymap "Scroll-bar"))
 718
 719 (define-key menu-bar-showhide-scroll-bar-menu [right]
 720   '(menu-item "On the Right"
 721               (lambda ()
 722                 (interactive)
 723                 (customize-set-variable 'scroll-bar-mode 'right))
 724               :help "Scroll-bar on the right side"
 725               :visible (display-graphic-p)
 726               :button (:radio . (eq (cdr (assq 'vertical-scroll-bars
 727                                                (frame-parameters))) 'right))))
 728
 729 (define-key menu-bar-showhide-scroll-bar-menu [left]
 730   '(menu-item "On the Left"
 731               (lambda ()
 732                 (interactive)
 733                 (customize-set-variable 'scroll-bar-mode 'left))
 734               :help "Scroll-bar on the left side"
 735               :visible (display-graphic-p)
 736               :button (:radio . (eq (cdr (assq 'vertical-scroll-bars
 737                                                (frame-parameters))) 'left))))
 738
 739 (define-key menu-bar-showhide-scroll-bar-menu [none]
 740   '(menu-item "None"
 741               (lambda ()
 742                 (interactive)
 743                 (customize-set-variable 'scroll-bar-mode nil))
 744               :help "Turn off scroll-bar"
 745               :visible (display-graphic-p)
 746               :button (:radio . (eq (cdr (assq 'vertical-scroll-bars
 747                                                (frame-parameters))) nil))))
 748
 749 (define-key menu-bar-showhide-menu [showhide-scroll-bar]
 750   (list 'menu-item "Scroll-bar" menu-bar-showhide-scroll-bar-menu
 751         :visible `(display-graphic-p)
 752         :help "Select scroll-bar mode"))
 753
 754 (defun showhide-menu-bar ()
 755   "Toggle whether to turn menu-bar on/off."
 756   (interactive)
 757   (menu-bar-mode)
 758   (if menu-bar-mode
 759       (message "Menu-bar mode enabled.")
 760     (message "Menu-bar mode disabled.  Use M-x menu-bar-mode to make the menu bar appear."))
 761   (customize-mark-as-set 'menu-bar-mode))
 762
 763 (define-key menu-bar-showhide-menu [showhide-menu-bar]
 764   '(menu-item "Menu-bar" showhide-menu-bar
 765               :help "Toggle menu-bar on/off"
 766               :button (:toggle . menu-bar-mode)))
 767
 768 (defun showhide-toolbar ()
 769   "Toggle whether to turn tool-bar on/off."
 770   (interactive)
 771   (if (tool-bar-mode)
 772       (message "Tool-bar mode enabled.")
 773     (message "Tool-bar mode disabled."))
 774   (customize-mark-as-set 'tool-bar-mode))
 775
 776 (define-key menu-bar-showhide-menu [showhide-tool-bar]
 777   (list 'menu-item "Tool-bar" 'showhide-toolbar
 778         :help "Turn tool-bar on/off"
 779         :visible `(display-graphic-p)
 780         :button `(:toggle . tool-bar-mode)))
 781
 782 (define-key menu-bar-options-menu [showhide]
 783   (list 'menu-item "Show/Hide" menu-bar-showhide-menu
 784         :help "Toggle on/off various display features"))
 785
 786 (define-key menu-bar-options-menu [showhide-separator]
 787   '("--"))
 788
 789 (define-key menu-bar-options-menu [mule]
 790   ;; It is better not to use backquote here,
 791   ;; because that makes a bootstrapping problem
 792   ;; if you need to recompile all the Lisp files using interpreted code.
 793   (list 'menu-item "Mule (Multilingual Environment)" mule-menu-keymap
 794 ;; Most of the MULE menu actually does make sense in unibyte mode,
 795 ;; e.g. language selection.
 796 ;;;     ':visible 'default-enable-multibyte-characters
 797         ':help "Default language, encodings, input method"))
 798 ;(setq menu-bar-final-items (cons 'mule menu-bar-final-items))
 799 ;(define-key menu-bar-options-menu [preferences]
 800 ;  (list 'menu-item "Preferences" menu-bar-preferences-menu
 801 ;       :help "Toggle important global options"))
 802
 803 (define-key menu-bar-options-menu [mule-separator]
 804   '("--"))
 805
 806 (define-key menu-bar-options-menu [debug-on-quit]
 807   (menu-bar-make-toggle toggle-debug-on-quit debug-on-quit
 808                         "Enter Debugger on Quit/C-g" "Debug on Quit %s"
 809                         "Enter Lisp debugger when C-g is pressed"))
 810 (define-key menu-bar-options-menu [debug-on-error]
 811   (menu-bar-make-toggle toggle-debug-on-error debug-on-error
 812                         "Enter Debugger on Error" "Debug on Error %s"
 813                         "Enter Lisp debugger when an error is signaled"))
 814 (define-key menu-bar-options-menu [debugger-separator]
 815   '("--"))
 816 (define-key menu-bar-options-menu [toggle-auto-compression]
 817   '(menu-item "Automatic File De/compression"
 818               (lambda ()
 819                 (interactive)
 820                 (auto-compression-mode)
 821                 (customize-mark-as-set 'auto-compression-mode))
 822               :help "Transparently decompress compressed files"
 823               :button (:toggle . (rassq 'jka-compr-handler
 824                                         file-name-handler-alist))))
 825 (define-key menu-bar-options-menu [save-place]
 826   (menu-bar-make-toggle toggle-save-place-globally save-place
 827                         "Save Place in Files between Sessions"
 828                         "Saving place in files %s"
 829                         "Save Emacs state for next session"))
 830
 831 (define-key menu-bar-options-menu [uniquify]
 832   (menu-bar-make-toggle toggle-uniquify-buffer-names uniquify-buffer-name-style
 833                         "Use Directory Names in Buffer Names"
 834                         "Directory name in buffer names (uniquify) %s"
 835                         "Uniquify buffer names by adding parent directory names"
 836                         () ; no props
 837                         (require 'uniquify)
 838                         (setq uniquify-buffer-name-style
 839                               (if (not uniquify-buffer-name-style)
 840                                   'forward))))
 841
 842 (define-key menu-bar-options-menu [edit-options-separator]
 843   '("--"))
 844 (define-key menu-bar-options-menu [cua-mode]
 845   '(menu-item "CUA-style cut and paste"
 846               (lambda ()
 847                 (interactive)
 848                 (cua-mode nil)
 849                 (customize-mark-as-set 'cua-mode)
 850                 (message "CUA-style cut and paste %s"
 851                          (if cua-mode "enabled" "disabled")))
 852               :help "Use C-z/C-x/C-c/C-v keys for undo/cut/copy/paste"
 853               :button (:toggle . cua-mode)))
 854 (define-key menu-bar-options-menu [case-fold-search]
 855   (menu-bar-make-toggle toggle-case-fold-search case-fold-search
 856                         "Case-Insensitive Search"
 857                         "Case-Insensitive Search %s"
 858                         "Ignore letter-case in search"))
 859 (define-key menu-bar-options-menu [auto-fill-mode]
 860   '(menu-item "Word Wrap in Text Modes (Auto Fill)"
 861               (lambda ()
 862                 (interactive)
 863                 (toggle-text-mode-auto-fill)
 864                 ;; This is somewhat questionable, as `text-mode-hook'
 865                 ;; might have changed outside customize.
 866                 ;; -- Per Abrahamsen <abraham@dina.kvl.dk> 2002-02-11.
 867                 (customize-mark-as-set 'text-mode-hook))
 868               :help "Automatically fill text between left and right margins"
 869               :button (:toggle . (if (listp text-mode-hook)
 870                                      (member 'turn-on-auto-fill text-mode-hook)
 871                                    (eq 'turn-on-auto-fill text-mode-hook)))))
 872 (define-key menu-bar-options-menu [truncate-lines]
 873   '(menu-item "Truncate Long Lines in this Buffer"
 874               (lambda ()
 875                 (interactive)
 876                 (setq truncate-lines (not truncate-lines))
 877                 (set-buffer-modified-p (buffer-modified-p))
 878                 (message "Truncate long lines %s"
 879                          (if truncate-lines "enabled" "disabled")))
 880               :help "Truncate long lines on the screen"
 881               :button (:toggle . truncate-lines)))
 882
 883 (define-key menu-bar-options-menu [highlight-separator]
 884   '("--"))
 885 (define-key menu-bar-options-menu [highlight-paren-mode]
 886   (menu-bar-make-toggle toggle-highlight-paren-mode show-paren-mode
 887                         "Paren Match Highlighting (Show Paren mode)"
 888                         "Show Paren mode %s"
 889                         "Highlight matching/mismatched parentheses at cursor"))
 890 (define-key menu-bar-options-menu [transient-mark-mode]
 891   (menu-bar-make-toggle toggle-transient-mark-mode transient-mark-mode
 892                         "Active Region Highlighting (Transient Mark mode)"
 893                         "Transient Mark mode %s"
 894                         "Make text in active region stand out in color"
 895                         (:enable (not cua-mode))))
 896 (define-key menu-bar-options-menu [toggle-global-lazy-font-lock-mode]
 897   (menu-bar-make-toggle toggle-global-lazy-font-lock-mode global-font-lock-mode
 898                         "Syntax Highlighting (Global Font Lock mode)"
 899                         "Global Font Lock mode %s"
 900                         "Colorize text based on language syntax"))
 901
 902 \f
 903 ;; The "Tools" menu items
 904
 905 (defun send-mail-item-name ()
 906   (let* ((known-send-mail-commands '((sendmail-user-agent . "sendmail")
 907                                      (mh-e-user-agent . "MH")
 908                                      (message-user-agent . "Gnus Message")
 909                                      (gnus-user-agent . "Gnus")))
 910          (name (assq mail-user-agent known-send-mail-commands)))
 911     (if name
 912         (setq name (cdr name))
 913       (setq name (symbol-name mail-user-agent))
 914       (if (string-match "\\(.+\\)-user-agent" name)
 915           (setq name (match-string 1 name))))
 916     name))
 917
 918 (defun read-mail-item-name ()
 919   (let* ((known-rmail-commands '((rmail . "RMAIL")
 920                                  (mh-rmail . "MH")
 921                                  (gnus . "Gnus")))
 922          (known (assq read-mail-command known-rmail-commands)))
 923     (if known (cdr known) (symbol-name read-mail-command))))
 924
 925 (defvar menu-bar-games-menu (make-sparse-keymap "Games"))
 926
 927 (define-key menu-bar-tools-menu [games]
 928   (list 'menu-item "Games" menu-bar-games-menu))
 929
 930 (define-key menu-bar-tools-menu [separator-games]
 931   '("--"))
 932
 933 (define-key menu-bar-games-menu [zone]
 934   '(menu-item "Zone Out"  zone
 935               :help "Play tricks with Emacs display when Emacs is idle"))
 936 (define-key menu-bar-games-menu [yow]
 937   '(menu-item "Random Quotation"  yow
 938               :help "Display a random Zippy quotation"))
 939 (define-key menu-bar-games-menu [tetris]
 940   '(menu-item "Tetris"  tetris))
 941 (define-key menu-bar-games-menu [solitaire]
 942   '(menu-item "Solitaire"  solitaire))
 943 (define-key menu-bar-games-menu [snake]
 944   '(menu-item "Snake"  snake
 945               :help "Move snake around avoiding collisions"))
 946 (define-key menu-bar-games-menu [mult]
 947   '(menu-item "Multiplication Puzzle"  mpuz
 948               :help "Excercise brain with multiplication"))
 949 (define-key menu-bar-games-menu [life]
 950   '(menu-item "Life"  life
 951               :help "Watch how John Conway's cellular automaton evolves"))
 952 (define-key menu-bar-games-menu [hanoi]
 953   '(menu-item "Towers of Hanoi" hanoi
 954               :help "Watch Towers-of-Hanoi puzzle solved by Emacs"))
 955 (define-key menu-bar-games-menu [gomoku]
 956   '(menu-item "Gomoku"  gomoku
 957               :help "Mark 5 contiguous squares (like tic-tac-toe)"))
 958 (define-key menu-bar-games-menu [black-box]
 959   '(menu-item "Blackbox"  blackbox
 960               :help "Find balls in a black box by shooting rays"))
 961 (define-key menu-bar-games-menu [adventure]
 962   '(menu-item "Adventure"  dunnet
 963               :help "Dunnet, a text Adventure game for Emacs"))
 964 (define-key menu-bar-games-menu [5x5]
 965   '(menu-item "5x5" 5x5
 966               :help "Fill in all the squares on a 5x5 board"))
 967
 968 (define-key menu-bar-tools-menu [simple-calculator]
 969   '(menu-item "Simple Calculator" calculator
 970               :help "Invoke the Emacs built-in quick calculator"))
 971 (define-key menu-bar-tools-menu [calc]
 972   '(menu-item "Programmable Calculator" calc
 973               :help "Invoke the Emacs built-in full scientific calculator"))
 974 (define-key menu-bar-tools-menu [calendar]
 975   '(menu-item "Display Calendar" calendar))
 976
 977 (define-key menu-bar-tools-menu [separator-net]
 978   '("--"))
 979
 980 (define-key menu-bar-tools-menu [directory-search]
 981   '(menu-item "Directory Search" eudc-tools-menu
 982               :help "Query directory servers via LDAP, CCSO PH/QI or BBDB"))
 983 (define-key menu-bar-tools-menu [compose-mail]
 984   (list
 985    'menu-item `(format "Send Mail (with %s)" (send-mail-item-name))
 986    'compose-mail
 987    :visible `(and mail-user-agent (not (eq mail-user-agent 'ignore)))
 988    :help "Send a mail message"))
 989 (define-key menu-bar-tools-menu [rmail]
 990   (list
 991    'menu-item `(format "Read Mail (with %s)" (read-mail-item-name))
 992    (lambda ()
 993      (interactive)
 994      (call-interactively read-mail-command))
 995    :visible `(and read-mail-command (not (eq read-mail-command 'ignore)))
 996    :help "Read your mail and reply to it"))
 997 (define-key menu-bar-tools-menu [gnus]
 998   '(menu-item "Read Net News (Gnus)" gnus
 999               :help "Read network news groups"))
1000
1001 (define-key menu-bar-tools-menu [separator-vc]
1002   '("--"))
1003
1004 (defvar vc-menu-map (make-sparse-keymap "Version Control"))
1005 (define-key menu-bar-tools-menu [pcl-cvs]
1006   `(menu-item "PCL-CVS" ,cvs-global-menu
1007               :help "Module-level interface to CVS"))
1008 (define-key menu-bar-tools-menu [vc]
1009   (list 'menu-item "Version Control" vc-menu-map
1010         :help "Interface to RCS, CVS, SCCS"))
1011
1012 (define-key menu-bar-tools-menu [separator-compare]
1013   '("--"))
1014
1015 (define-key menu-bar-tools-menu [ediff-misc]
1016   '(menu-item "Ediff Miscellanea" menu-bar-ediff-misc-menu
1017               :help "Ediff manual, customization, sessions, etc."))
1018 (define-key menu-bar-tools-menu [epatch]
1019   '(menu-item "Apply Patch" menu-bar-epatch-menu))
1020 (define-key menu-bar-tools-menu [ediff-merge]
1021   '(menu-item "Merge" menu-bar-ediff-merge-menu
1022               :help "Merge different revisions of files/directories"))
1023 (define-key menu-bar-tools-menu [compare]
1024   '(menu-item "Compare (Ediff)" menu-bar-ediff-menu
1025               :help "Display differences between files/directories"))
1026
1027
1028 (define-key menu-bar-tools-menu [separator-spell]
1029   '("--"))
1030
1031 (define-key menu-bar-tools-menu [spell]
1032   '(menu-item "Spell Checking" ispell-menu-map))
1033
1034 (define-key menu-bar-tools-menu [separator-prog]
1035   '("--"))
1036
1037 (define-key menu-bar-tools-menu [gdb]
1038   '(menu-item "Debugger (GDB)..." gdb
1039               :help "Debug a program from within Emacs with GDB"))
1040 (define-key menu-bar-tools-menu [shell-on-region]
1041   '(menu-item "Shell Command on Region..." shell-command-on-region
1042               :enable mark-active
1043               :help "Pass marked region to a shell command"))
1044 (define-key menu-bar-tools-menu [shell]
1045   '(menu-item "Shell Command..." shell-command
1046               :help "Invoke a shell command and catch its output"))
1047 (define-key menu-bar-tools-menu [compile]
1048   '(menu-item "Compile..." compile
1049               :help "Invoke compiler or Make, view compilation errors"))
1050 (define-key menu-bar-tools-menu [grep]
1051   '(menu-item "Search Files (Grep)..." grep
1052               :help "Search files for strings or regexps (with Grep)"))
1053
1054 \f
1055 ;; The "Help" menu items
1056
1057 (defvar menu-bar-describe-menu (make-sparse-keymap "Describe"))
1058
1059 (define-key menu-bar-describe-menu [mule-diag]
1060   '(menu-item "Show All of Mule Status" mule-diag
1061               :visible default-enable-multibyte-characters
1062               :help "Display multilingual environment settings"))
1063 (define-key menu-bar-describe-menu [describe-coding-system-briefly]
1064   '(menu-item "Describe Coding System (Briefly)..."
1065               describe-current-coding-system-briefly
1066               :visible default-enable-multibyte-characters))
1067 (define-key menu-bar-describe-menu [describe-coding-system]
1068   '(menu-item "Describe Coding System..." describe-coding-system
1069               :visible default-enable-multibyte-characters))
1070 (define-key menu-bar-describe-menu [describe-input-method]
1071   '(menu-item "Describe Input Method..." describe-input-method
1072               :visible default-enable-multibyte-characters
1073               :help "Keyboard layout for specific input method"))
1074 (define-key menu-bar-describe-menu [describe-language-environment]
1075   (list 'menu-item "Describe Language Environment"
1076         describe-language-environment-map
1077         :help "Show multilingual settings for a specific language"))
1078
1079 (define-key menu-bar-describe-menu [separator-desc-mule]
1080   '("--"))
1081
1082 (define-key menu-bar-describe-menu [list-keybindings]
1083   '(menu-item "List Key Bindings" describe-bindings
1084               :help "Display a list of all current keybindings"))
1085 (define-key menu-bar-describe-menu [describe-current-display-table]
1086   '(menu-item "Describe Display Table" describe-current-display-table
1087               :help "Describe the current display table"))
1088 (define-key menu-bar-describe-menu [describe-face]
1089   '(menu-item "Describe Face..." describe-face
1090               :help "Display the properties of a face"))
1091 (define-key menu-bar-describe-menu [describe-variable]
1092   '(menu-item "Describe Variable..." describe-variable
1093               :help "Display documentation of variable/option"))
1094 (define-key menu-bar-describe-menu [describe-function]
1095   '(menu-item "Describe Function..." describe-function
1096               :help "Display documentation of function/command"))
1097 (define-key menu-bar-describe-menu [describe-key]
1098   '(menu-item "Describe Key..." describe-key
1099               ;; Users typically don't identify keys and menu items...
1100               :help "Display documentation of command bound to a \
1101 key (or menu-item)"))
1102 (define-key menu-bar-describe-menu [describe-mode]
1103   '(menu-item "Describe Buffer Modes" describe-mode
1104               :help "Describe this buffer's major and minor mode"))
1105
1106 (defvar menu-bar-apropos-menu (make-sparse-keymap "Apropos"))
1107 (defun menu-bar-read-lispref ()
1108   "Display the Emacs Lisp Reference manual in Info mode."
1109   (interactive)
1110   (info "elisp"))
1111
1112 (defun menu-bar-read-lispintro ()
1113   "Display the Introduction to Emacs Lisp Programming in Info mode."
1114   (interactive)
1115   (info "eintr"))
1116
1117 (defun menu-bar-read-emacs-man ()
1118   "Display Emacs User Manual in Info mode."
1119   (interactive)
1120   (info "emacs"))
1121
1122 (defun search-emacs-glossary ()
1123   "Display the Glossary node of the Emacs manual in Info mode."
1124   (interactive)
1125   (info "(emacs)Glossary"))
1126
1127 (defun emacs-index-search (topic)
1128   "Look up TOPIC in the indices of the Emacs User Manual."
1129   (interactive "sSubject to look up: ")
1130   (info "emacs")
1131   (Info-index topic))
1132
1133 (defun elisp-index-search (topic)
1134   "Look up TOPIC in the indices of the Emacs Lisp Reference Manual."
1135   (interactive "sSubject to look up: ")
1136   (info "elisp")
1137   (Info-index topic))
1138
1139 (define-key menu-bar-apropos-menu [apropos-documentation]
1140   '(menu-item "Search Documentation Strings..." apropos-documentation
1141               :help
1142               "Find functions and variables whose doc strings match a regexp"))
1143 (define-key menu-bar-apropos-menu [apropos]
1144   '(menu-item "Find Any Object by Name..."  apropos
1145               :help "Find symbols of any kind whose names match a regexp"))
1146 (define-key menu-bar-apropos-menu [apropos-value]
1147   '(menu-item "Find Options by Value..." apropos-value
1148               :help "Find variables whose values match a regexp"))
1149 (define-key menu-bar-apropos-menu [apropos-variables]
1150   '(menu-item "Find Options by Name..." apropos-variable
1151               :help "Find variables whose names match a regexp"))
1152 (define-key menu-bar-apropos-menu [apropos-commands]
1153   '(menu-item "Find Commands by Name..." apropos-command
1154               :help "Find commands whose names match a regexp"))
1155 (define-key menu-bar-apropos-menu [sep1]
1156   '("--"))
1157 (define-key menu-bar-apropos-menu [elisp-index-search]
1158   '(menu-item "Look Up Subject in ELisp Manual..." elisp-index-search
1159               :help "Find description of a subject in Emacs Lisp manual"))
1160 (define-key menu-bar-apropos-menu [emacs-index-search]
1161   '(menu-item "Look Up Subject in User Manual..." emacs-index-search
1162               :help "Find description of a subject in Emacs User manual"))
1163 (define-key menu-bar-apropos-menu [emacs-glossary]
1164   '(menu-item "Emacs Terminology" search-emacs-glossary
1165               :help "Display the Glossary section of the Emacs manual"))
1166
1167 (defvar menu-bar-manuals-menu (make-sparse-keymap "More Manuals"))
1168
1169 (define-key menu-bar-manuals-menu [man]
1170   '(menu-item "Read Man Page..." manual-entry
1171               :help "Man-page docs for external commands and libraries"))
1172 (define-key menu-bar-manuals-menu [sep2]
1173   '("--"))
1174 (define-key menu-bar-manuals-menu [order-emacs-manuals]
1175   '(menu-item "Ordering Manuals" view-order-manuals
1176               :help "How to order manuals from the Free Software Foundation"))
1177 (define-key menu-bar-manuals-menu [info]
1178   '(menu-item "All Other Manuals (Info)" Info-directory
1179               :help "Read any of the installed manuals"))
1180 (define-key menu-bar-manuals-menu [info-elisp]
1181   '(menu-item "Emacs Lisp Reference" menu-bar-read-lispref
1182               :help "Read the Emacs Lisp Reference manual"))
1183 (define-key menu-bar-manuals-menu [info-elintro]
1184   '(menu-item "Introduction to Emacs Lisp" menu-bar-read-lispintro
1185               :help "Read the Introduction to Emacs Lisp Programming"))
1186 (define-key menu-bar-manuals-menu [sep3]
1187   '("--"))
1188 (define-key menu-bar-manuals-menu [command]
1189   '(menu-item "Find Command in Manual" Info-goto-emacs-command-node
1190               :help "Display manual section that describes a command"))
1191 (define-key menu-bar-manuals-menu [key]
1192   '(menu-item "Find Key in Manual" Info-goto-emacs-key-command-node
1193               :help "Display manual section that describes a key"))
1194
1195 (define-key menu-bar-help-menu [eliza]
1196   '(menu-item "Emacs Psychiatrist" doctor
1197               :help "Our doctor will help you feel better"))
1198 (define-key menu-bar-help-menu [sep4]
1199   '("--"))
1200 (define-key menu-bar-help-menu [describe-no-warranty]
1201   '(menu-item "(Non)Warranty" describe-no-warranty
1202               :help "Explain that Emacs has NO WARRANTY"))
1203 (define-key menu-bar-help-menu [describe-copying]
1204   '(menu-item "Copying Conditions" describe-copying
1205               :help "Show the Emacs license (GPL)"))
1206 (define-key menu-bar-help-menu [describe-distribution]
1207   '(menu-item "Getting New Versions" describe-distribution
1208               :help "How to get latest versions of Emacs"))
1209 (define-key menu-bar-help-menu [more]
1210   '(menu-item "Find Extra Packages"
1211               (lambda ()
1212                 (interactive)
1213                 (let (enable-local-variables)
1214                   (view-file (expand-file-name "MORE.STUFF"
1215                                                data-directory))
1216                   (goto-address)))
1217               :help "Where to find some extra packages and possible updates"))
1218 (define-key menu-bar-help-menu [about]
1219   '(menu-item "About Emacs" display-splash-screen
1220               :help "Display version number, copyright info, and basic help"))
1221 (define-key menu-bar-help-menu [sep2]
1222   '("--"))
1223 (define-key menu-bar-help-menu [finder-by-keyword]
1224   '(menu-item "Find Emacs Packages..." finder-by-keyword
1225               :help "Find packages and features by keyword"))
1226 (define-key menu-bar-help-menu [manuals]
1227   (list 'menu-item "More Manuals" menu-bar-manuals-menu
1228         :help "Search and browse on-line manuals"))
1229 (define-key menu-bar-help-menu [emacs-manual]
1230   '(menu-item "Read the Emacs Manual" menu-bar-read-emacs-man
1231               :help "Full documentation of Emacs features"))
1232 (define-key menu-bar-help-menu [describe]
1233   (list 'menu-item "Describe" menu-bar-describe-menu
1234         :help "Describe commands, variables, keys"))
1235 (define-key menu-bar-help-menu [apropos]
1236   (list 'menu-item "Search Documentation" menu-bar-apropos-menu
1237         :help "Look up terms, find commands, options, etc. (Apropos)"))
1238 (define-key menu-bar-help-menu [sep1]
1239   '("--"))
1240 (define-key menu-bar-help-menu [report-emacs-bug]
1241   '(menu-item "Send Bug Report..." report-emacs-bug
1242               :help "Send e-mail to Emacs maintainers"))
1243 (define-key menu-bar-help-menu [emacs-problems]
1244   '(menu-item "Emacs Known Problems" view-emacs-problems))
1245 (define-key menu-bar-help-menu [emacs-news]
1246   '(menu-item "Emacs News" view-emacs-news
1247               :help "New features of this version"))
1248 (define-key menu-bar-help-menu [emacs-faq]
1249   '(menu-item "Emacs FAQ" view-emacs-FAQ))
1250 (define-key menu-bar-help-menu [emacs-tutorial-language-specific]
1251   '(menu-item "Emacs Tutorial (choose language)..."
1252               (lambda () (interactive) (help-with-tutorial t))
1253               :help "Learn how to use Emacs (choose a language)"))
1254 (define-key menu-bar-help-menu [emacs-tutorial]
1255   '(menu-item "Emacs Tutorial" help-with-tutorial
1256               :help "Learn how to use Emacs"))
1257
1258 (defun kill-this-buffer ()      ; for the menubar
1259   "Kill the current buffer."
1260   (interactive)
1261   (kill-buffer (current-buffer)))
1262
1263 (defun kill-this-buffer-enabled-p ()
1264   (let ((count 0)
1265         (buffers (buffer-list)))
1266     (while buffers
1267       (or (string-match "^ " (buffer-name (car buffers)))
1268           (setq count (1+ count)))
1269       (setq buffers (cdr buffers)))
1270     (and (not (window-minibuffer-p (frame-selected-window menu-updating-frame)))
1271          (> count 1))))
1272
1273 (put 'dired 'menu-enable
1274      '(not (window-minibuffer-p (frame-selected-window menu-updating-frame))))
1275
1276 ;; Permit deleting frame if it would leave a visible or iconified frame.
1277 (defun delete-frame-enabled-p ()
1278   "Return non-nil if `delete-frame' should be enabled in the menu bar."
1279   (let ((frames (frame-list))
1280         (count 0))
1281     (while frames
1282       (if (frame-visible-p (car frames))
1283           (setq count (1+ count)))
1284       (setq frames (cdr frames)))
1285     (> count 1)))
1286
1287 (defcustom yank-menu-length 20
1288   "*Maximum length to display in the yank-menu."
1289   :type 'integer
1290   :group 'mouse)
1291
1292 (defun menu-bar-update-yank-menu (string old)
1293   (let ((front (car (cdr yank-menu)))
1294         (menu-string (if (<= (length string) yank-menu-length)
1295                          string
1296                        (concat
1297                         (substring string 0 (/ yank-menu-length 2))
1298                         "..."
1299                         (substring string (- (/ yank-menu-length 2)))))))
1300     ;; Don't let the menu string be all dashes
1301     ;; because that has a special meaning in a menu.
1302     (if (string-match "\\`-+\\'" menu-string)
1303         (setq menu-string (concat menu-string " ")))
1304     ;; If we're supposed to be extending an existing string, and that
1305     ;; string really is at the front of the menu, then update it in place.
1306     (if (and old (or (eq old (car front))
1307                      (string= old (car front))))
1308         (progn
1309           (setcar front string)
1310           (setcar (cdr front) menu-string))
1311       (setcdr yank-menu
1312               (cons
1313                (cons string (cons menu-string 'menu-bar-select-yank))
1314                (cdr yank-menu)))))
1315   (if (> (length (cdr yank-menu)) kill-ring-max)
1316       (setcdr (nthcdr kill-ring-max yank-menu) nil)))
1317
1318 (put 'menu-bar-select-yank 'apropos-inhibit t)
1319 (defun menu-bar-select-yank ()
1320   (interactive "*")
1321   (push-mark (point))
1322   (insert last-command-event))
1323
1324 \f
1325 (defcustom buffers-menu-show-directories 'unless-uniquify
1326   "If non-nil, show directories in the Buffers menu for buffers that have them.
1327 The special value `unless-uniquify' means that directories will be shown
1328 unless `uniquify-buffer-name-style' is non-nil (in which case, buffer
1329 names should include enough of a buffer's directory to distinguish it
1330 from other buffers).
1331
1332 Setting this variable directly does not take effect until next time the
1333 Buffers menu is regenerated."
1334   :set (lambda (symbol value)
1335          (set symbol value)
1336          (menu-bar-update-buffers t))
1337   :initialize 'custom-initialize-default
1338   :type '(choice (const :tag "Never" nil)
1339                  (const :tag "Unless uniquify is enabled" unless-uniquify)
1340                  (const :tag "Always" t))
1341   :group 'menu)
1342
1343 (defcustom buffers-menu-show-status t
1344   "If non-nil, show modified/read-only status of buffers in the Buffers menu.
1345 Setting this variable directly does not take effect until next time the
1346 Buffers menu is regenerated."
1347   :set (lambda (symbol value)
1348          (set symbol value)
1349          (menu-bar-update-buffers t))
1350   :initialize 'custom-initialize-default
1351   :type 'boolean
1352   :group 'menu)
1353
1354 (defvar list-buffers-directory nil)
1355
1356 (defvar menu-bar-update-buffers-maxbuf)
1357
1358 (defun menu-bar-select-buffer ()
1359   (interactive)
1360   (switch-to-buffer last-command-event))
1361
1362 (defun menu-bar-select-frame ()
1363   (interactive)
1364   (let (frame)
1365     (dolist (f (frame-list))
1366       (when (equal last-command-event (frame-parameter f 'name))
1367         (setq frame f)))
1368   (make-frame-visible frame)
1369   (raise-frame frame)
1370   (select-frame frame)))
1371
1372 (defun menu-bar-update-buffers-1 (elt)
1373   (let* ((buf (car elt))
1374          (file
1375           (and (if (eq buffers-menu-show-directories 'unless-uniquify)
1376                    (or (not (boundp 'uniquify-buffer-name-style))
1377                        (null uniquify-buffer-name-style))
1378                  buffers-menu-show-directories)
1379                (or (buffer-file-name buf)
1380                    (buffer-local-value 'list-buffers-directory buf)))))
1381     (when file
1382       (setq file (file-name-directory file)))
1383     (when (and file (> (length file) 20))
1384       (setq file (concat "..." (substring file -17))))
1385     (cons (if buffers-menu-show-status
1386               (let ((mod (if (buffer-modified-p buf) "*" ""))
1387                     (ro (if (buffer-local-value 'buffer-read-only buf) "%" "")))
1388                 (if file
1389                     (format "%s  %s%s  --  %s" (cdr elt) mod ro file)
1390                   (format "%s  %s%s" (cdr elt) mod ro)))
1391             (if file
1392                 (format "%s  --  %s"  (cdr elt) file)
1393               (cdr elt)))
1394           buf)))
1395
1396 ;; Used to cache the menu entries for commands in the Buffers menu
1397 (defvar menu-bar-buffers-menu-command-entries nil)
1398
1399 (defun menu-bar-update-buffers (&optional force)
1400   ;; If user discards the Buffers item, play along.
1401   (and (lookup-key (current-global-map) [menu-bar buffer])
1402        (or force (frame-or-buffer-changed-p))
1403        (let ((buffers (buffer-list))
1404              (frames (frame-list))
1405              buffers-menu frames-menu)
1406          ;; If requested, list only the N most recently selected buffers.
1407          (if (and (integerp buffers-menu-max-size)
1408                   (> buffers-menu-max-size 1))
1409              (if (> (length buffers) buffers-menu-max-size)
1410                  (setcdr (nthcdr buffers-menu-max-size buffers) nil)))
1411
1412          ;; Make the menu of buffers proper.
1413          (setq buffers-menu
1414                (let* ((buffer-list
1415                        (mapcar 'list buffers))
1416                       (menu-bar-update-buffers-maxbuf 0)
1417                       alist)
1418                  ;; Put into each element of buffer-list
1419                  ;; the name for actual display,
1420                  ;; perhaps truncated in the middle.
1421                  (dolist (buf buffer-list)
1422                    (let ((name (buffer-name (car buf))))
1423                      (setcdr buf
1424                              (if (> (length name) 27)
1425                                  (concat (substring name 0 12)
1426                                          "..."
1427                                          (substring name -12))
1428                                name))))
1429                  ;; Compute the maximum length of any name.
1430                  (dolist (buf buffer-list)
1431                    (unless (eq ?\  (aref (cdr buf) 0))
1432                      (setq menu-bar-update-buffers-maxbuf
1433                            (max menu-bar-update-buffers-maxbuf
1434                                 (length (cdr buf))))))
1435                  ;; Set ALIST to an alist of the form
1436                  ;; ITEM-STRING . BUFFER
1437                  (dolist (buf buffer-list)
1438                    (unless (eq ?\  (aref (cdr buf) 0))
1439                      (push (menu-bar-update-buffers-1 buf) alist)))
1440                  ;; Now make the actual list of items, and add
1441                  ;; some miscellaneous buffer commands to the end.
1442                  (mapcar (lambda (pair)
1443                            ;; This is somewhat risque, to use
1444                            ;; the buffer name itself as the event
1445                            ;; type to define, but it works.
1446                            ;; It would not work to use the buffer
1447                            ;; since a buffer as an event has its
1448                            ;; own meaning.
1449                            (nconc (list (buffer-name (cdr pair))
1450                                         (car pair)
1451                                         (cons nil nil))
1452                                   'menu-bar-select-buffer))
1453                          (nreverse alist))))
1454
1455          ;; Make a Frames menu if we have more than one frame.
1456          (when (cdr frames)
1457            (let ((frames-menu
1458                   (cons 'keymap
1459                         (cons "Select Frame"
1460                               (mapcar
1461                                (lambda (frame)
1462                                  (nconc
1463                                   (list (frame-parameter frame 'name)
1464                                         (frame-parameter frame 'name)
1465                                         (cons nil nil))
1466                                   'menu-bar-select-frame))
1467                                frames)))))
1468              ;; Put it after the normal buffers
1469              (setq buffers-menu
1470                    (nconc buffers-menu
1471                           `((frames-separator "--")
1472                             (frames menu-item "Frames" ,frames-menu))))))
1473
1474          ;; Add in some normal commands at the end of the menu.  We use
1475          ;; the copy cached in `menu-bar-buffers-menu-command-entries'
1476          ;; if it's been set already.  Note that we can't use constant
1477          ;; lists for the menu-entries, because the low-level menu-code
1478          ;; modifies them.
1479          (unless menu-bar-buffers-menu-command-entries
1480            (setq menu-bar-buffers-menu-command-entries
1481                  (list '(command-separator "--")
1482                        (list 'next-buffer
1483                              'menu-item
1484                              "Next Buffer"
1485                              'next-buffer
1486                              :help "Switch to the \"next\" buffer in a cyclic order")
1487                        (list 'prev-buffer
1488                              'menu-item
1489                              "Previous Buffer"
1490                              'prev-buffer
1491                              :help "Switch to the \"previous\" buffer in a cyclic order")
1492                        (list 'select-named-buffer
1493                              'menu-item
1494                              "Select Named Buffer..."
1495                              'switch-to-buffer
1496                              :help "Prompt for a buffer name, and select that buffer in the current window")
1497                        (list 'list-all-buffers
1498                              'menu-item
1499                              "List All Buffers"
1500                              'list-buffers
1501                              :help "Pop up a window listing all emacs buffers"
1502                              ))))
1503          (setq buffers-menu
1504                (nconc buffers-menu menu-bar-buffers-menu-command-entries))
1505
1506          (setq buffers-menu (cons 'keymap (cons "Select Buffer" buffers-menu)))
1507          (define-key (current-global-map) [menu-bar buffer]
1508            (cons "Buffers" buffers-menu)))))
1509
1510 (add-hook 'menu-bar-update-hook 'menu-bar-update-buffers)
1511
1512 (menu-bar-update-buffers)
1513
1514 ;; this version is too slow
1515 ;;;(defun format-buffers-menu-line (buffer)
1516 ;;;  "Returns a string to represent the given buffer in the Buffer menu.
1517 ;;;nil means the buffer shouldn't be listed.  You can redefine this."
1518 ;;;  (if (string-match "\\` " (buffer-name buffer))
1519 ;;;      nil
1520 ;;;    (save-excursion
1521 ;;;     (set-buffer buffer)
1522 ;;;     (let ((size (buffer-size)))
1523 ;;;       (format "%s%s %-19s %6s %-15s %s"
1524 ;;;            (if (buffer-modified-p) "*" " ")
1525 ;;;            (if buffer-read-only "%" " ")
1526 ;;;            (buffer-name)
1527 ;;;            size
1528 ;;;            mode-name
1529 ;;;            (or (buffer-file-name) ""))))))
1530 \f
1531 ;;; Set up a menu bar menu for the minibuffer.
1532
1533 (dolist (map (list minibuffer-local-map
1534                    ;; This shouldn't be necessary, but there's a funny
1535                    ;; bug in keymap.c that I don't understand yet.  -stef
1536                    minibuffer-local-completion-map))
1537   (define-key map [menu-bar minibuf]
1538     (cons "Minibuf" (make-sparse-keymap "Minibuf"))))
1539
1540 (let ((map minibuffer-local-completion-map))
1541   (define-key map [menu-bar minibuf ?\?]
1542     (list 'menu-item "List Completions" 'minibuffer-completion-help
1543           :help "Display all possible completions"))
1544   (define-key map [menu-bar minibuf space]
1545     (list 'menu-item "Complete Word" 'minibuffer-complete-word
1546           :help "Complete at most one word"))
1547   (define-key map [menu-bar minibuf tab]
1548     (list 'menu-item "Complete" 'minibuffer-complete
1549           :help "Complete as far as possible")))
1550
1551 (let ((map minibuffer-local-map))
1552   (define-key map [menu-bar minibuf quit]
1553     (list 'menu-item "Quit" 'keyboard-escape-quit
1554           :help "Abort input and exit minibuffer"))
1555   (define-key map [menu-bar minibuf return]
1556     (list 'menu-item "Enter" 'exit-minibuffer
1557           :help "Terminate input and exit minibuffer")))
1558 \f
1559 (defcustom menu-bar-mode t
1560   "Toggle display of a menu bar on each frame.
1561 Setting this variable directly does not take effect;
1562 use either \\[customize] or the function `menu-bar-mode'."
1563   :set (lambda (symbol value)
1564          (menu-bar-mode (or value 0)))
1565   :initialize 'custom-initialize-default
1566   :type 'boolean
1567   :group 'frames)
1568
1569 (defun menu-bar-mode (&optional flag)
1570   "Toggle display of a menu bar on each frame.
1571 This command applies to all frames that exist and frames to be
1572 created in the future.
1573 With a numeric argument, if the argument is positive,
1574 turn on menu bars; otherwise, turn off menu bars."
1575  (interactive "P")
1576
1577   ;; Make menu-bar-mode and default-frame-alist consistent.
1578   (let ((default (assq 'menu-bar-lines default-frame-alist)))
1579     (if default
1580         (setq menu-bar-mode (not (eq (cdr default) 0)))
1581       (setq default-frame-alist
1582             (cons (cons 'menu-bar-lines (if menu-bar-mode 1 0))
1583                   default-frame-alist))))
1584
1585   ;; Toggle or set the mode, according to FLAG.
1586  (setq menu-bar-mode (if (null flag) (not menu-bar-mode)
1587                        (> (prefix-numeric-value flag) 0)))
1588
1589  ;; Apply it to default-frame-alist.
1590  (let ((parameter (assq 'menu-bar-lines default-frame-alist)))
1591    (if (consp parameter)
1592        (setcdr parameter (if menu-bar-mode 1 0))
1593      (setq default-frame-alist
1594            (cons (cons 'menu-bar-lines (if menu-bar-mode 1 0))
1595                  default-frame-alist))))
1596
1597  ;; Apply it to existing frames.
1598  (let ((frames (frame-list)))
1599    (while frames
1600      (let ((height (cdr (assq 'height (frame-parameters (car frames))))))
1601        (modify-frame-parameters (car frames)
1602                                 (list (cons 'menu-bar-lines
1603                                           (if menu-bar-mode 1 0))))
1604        (modify-frame-parameters (car frames)
1605                                 (list (cons 'height height))))
1606      (setq frames (cdr frames)))))
1607
1608 (provide 'menu-bar)
1609
1610 ;;; menu-bar.el ends here