code.delx.au - gnu-emacs/blob - 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               menu-bar-next-tag-other-window
 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
 360 (defun menu-bar-next-tag-other-window ()
 361   "Find the next definition of the tag already specified."
 362   (interactive)
 363   (find-tag-other-window nil t))
 364
 365 (defun menu-bar-next-tag ()
 366   "Find the next definition of the tag already specified."
 367   (interactive)
 368   (find-tag nil t))
 369
 370 (define-key menu-bar-goto-menu [next-tag]
 371   '(menu-item "Find Next Tag"
 372               menu-bar-next-tag
 373               :enable (and (boundp 'tags-location-ring)
 374                            (not (ring-empty-p tags-location-ring)))
 375               :help "Find next function/variable matching last tag name"))
 376 (define-key menu-bar-goto-menu [find-tag-otherw]
 377   '(menu-item "Find Tag in Other Window..." find-tag-other-window
 378               :help "Find function/variable definition in another window"))
 379 (define-key menu-bar-goto-menu [find-tag]
 380   '(menu-item "Find Tag..." find-tag
 381               :help "Find definition of function or variable"))
 382
 383 (define-key menu-bar-goto-menu [separator-tags]
 384   '(menu-item "--"))
 385
 386 (define-key menu-bar-goto-menu [end-of-buf]
 387   '(menu-item "Goto End of Buffer" end-of-buffer))
 388 (define-key menu-bar-goto-menu [beg-of-buf]
 389   '(menu-item "Goto Beginning of Buffer" beginning-of-buffer))
 390 (define-key menu-bar-goto-menu [go-to-pos]
 391   '(menu-item "Goto Buffer Position..." goto-char
 392               :help "Read a number N and go to buffer position N"))
 393 (define-key menu-bar-goto-menu [go-to-line]
 394   '(menu-item "Goto Line..." goto-line
 395               :help "Read a line number and go to that line"))
 396
 397 (define-key menu-bar-edit-menu [goto]
 398   (list 'menu-item "Go To" menu-bar-goto-menu))
 399
 400 (define-key menu-bar-edit-menu [search]
 401   (list 'menu-item "Search" menu-bar-search-menu))
 402
 403 (define-key menu-bar-edit-menu [separator-search]
 404   '(menu-item "--"))
 405
 406 (define-key menu-bar-edit-menu [mark-whole-buffer]
 407   '(menu-item "Select All" mark-whole-buffer
 408               :help "Mark the whole buffer for a subsequent cut/copy."))
 409 (define-key menu-bar-edit-menu [clear]
 410   '(menu-item "Clear" delete-region
 411               :enable (and mark-active
 412                            (not buffer-read-only)
 413                            (not (mouse-region-match)))
 414               :help
 415               "Delete the text in region between mark and current position"))
 416 (defvar yank-menu (cons "Select Yank" nil))
 417 (fset 'yank-menu (cons 'keymap yank-menu))
 418 (define-key menu-bar-edit-menu [select-paste]
 419   '(menu-item "Select and Paste" yank-menu
 420               :enable (and (cdr yank-menu) (not buffer-read-only))
 421               :help "Paste (yank) text cut or copied earlier"))
 422 (define-key menu-bar-edit-menu [paste]
 423   '(menu-item "Paste" yank
 424               :enable (and
 425                        ;; Emacs compiled --without-x doesn't have
 426                        ;; x-selection-exists-p.
 427                        (fboundp 'x-selection-exists-p)
 428                        (x-selection-exists-p) (not buffer-read-only))
 429               :help "Paste (yank) text most recently cut/copied"))
 430 (define-key menu-bar-edit-menu [copy]
 431   '(menu-item "Copy" menu-bar-kill-ring-save
 432               :enable mark-active
 433               :help "Copy text in region between mark and current position"
 434               :keys "\\[kill-ring-save]"))
 435 (define-key menu-bar-edit-menu [cut]
 436   '(menu-item "Cut" kill-region
 437               :enable (and mark-active (not buffer-read-only))
 438               :help
 439               "Cut (kill) text in region between mark and current position"))
 440 (define-key menu-bar-edit-menu [undo]
 441   '(menu-item "Undo" undo
 442               :enable (and (not buffer-read-only)
 443                            (not (eq t buffer-undo-list))
 444                            (if (eq last-command 'undo)
 445                                pending-undo-list
 446                              (consp buffer-undo-list)))
 447               :help "Undo last operation"))
 448
 449
 450 (defun menu-bar-kill-ring-save (beg end)
 451   (interactive "r")
 452   (if (mouse-region-match)
 453       (message "Selecting a region with the mouse does `copy' automatically")
 454     (kill-ring-save beg end)))
 455
 456 (autoload 'ispell-menu-map "ispell" nil t 'keymap)
 457
 458 ;; These are alternative definitions for the cut, paste and copy
 459 ;; menu items.  Use them if your system expects these to use the clipboard.
 460
 461 (put 'clipboard-kill-region 'menu-enable 'mark-active)
 462 (put 'clipboard-kill-ring-save 'menu-enable 'mark-active)
 463 (put 'clipboard-yank 'menu-enable
 464      '(or (and (fboundp 'x-selection-exists-p) (x-selection-exists-p))
 465           (x-selection-exists-p 'CLIPBOARD)))
 466
 467 (defun clipboard-yank ()
 468   "Insert the clipboard contents, or the last stretch of killed text."
 469   (interactive)
 470   (let ((x-select-enable-clipboard t))
 471     (yank)))
 472
 473 (defun clipboard-kill-ring-save (beg end)
 474   "Copy region to kill ring, and save in the X clipboard."
 475   (interactive "r")
 476   (let ((x-select-enable-clipboard t))
 477     (kill-ring-save beg end)))
 478
 479 (defun clipboard-kill-region (beg end)
 480   "Kill the region, and save it in the X clipboard."
 481   (interactive "r")
 482   (let ((x-select-enable-clipboard t))
 483     (kill-region beg end)))
 484
 485 (defun menu-bar-enable-clipboard ()
 486   "Make CUT, PASTE and COPY (keys and menu bar items) use the clipboard.
 487 Do the same for the keys of the same name."
 488   (interactive)
 489   ;; We can't use constant list structure here because it becomes pure,
 490   ;; and because it gets modified with cache data.
 491   (define-key menu-bar-edit-menu [paste]
 492     (cons "Paste" (cons "Paste text from clipboard" 'clipboard-yank)))
 493   (define-key menu-bar-edit-menu [copy]
 494     (cons "Copy" (cons "Copy text in region to the clipboard"
 495                        'clipboard-kill-ring-save)))
 496   (define-key menu-bar-edit-menu [cut]
 497     (cons "Cut" (cons "Delete text in region and copy it to the clipboard"
 498                       'clipboard-kill-region)))
 499
 500   (define-key global-map [f20] 'clipboard-kill-region)
 501   (define-key global-map [f16] 'clipboard-kill-ring-save)
 502   (define-key global-map [f18] 'clipboard-yank)
 503   ;; X11R6 versions
 504   (define-key global-map [cut] 'clipboard-kill-region)
 505   (define-key global-map [copy] 'clipboard-kill-ring-save)
 506   (define-key global-map [paste] 'clipboard-yank))
 507 \f
 508 ;; The "Options" menu items
 509
 510 (defvar menu-bar-custom-menu (make-sparse-keymap "Customize"))
 511
 512 (define-key menu-bar-custom-menu [customize-apropos-groups]
 513   '(menu-item "Groups Matching Regexp..." customize-apropos-groups
 514               :help "Browse groups whose names match regexp"))
 515 (define-key menu-bar-custom-menu [customize-apropos-faces]
 516   '(menu-item "Faces Matching Regexp..." customize-apropos-faces
 517               :help "Browse faces whose names match regexp"))
 518 (define-key menu-bar-custom-menu [customize-apropos-options]
 519   '(menu-item "Options Matching Regexp..." customize-apropos-options
 520               :help "Browse options whose names match regexp"))
 521 (define-key menu-bar-custom-menu [customize-apropos]
 522   '(menu-item "Settings Matching Regexp..." customize-apropos
 523               :help "Browse customizable settings whose names match regexp"))
 524 (define-key menu-bar-custom-menu [separator-1]
 525   '("--"))
 526 (define-key menu-bar-custom-menu [customize-group]
 527   '(menu-item "Specific Group..." customize-group
 528               :help "Customize settings of specific group"))
 529 (define-key menu-bar-custom-menu [customize-face]
 530   '(menu-item "Specific Face..." customize-face
 531               :help "Customize attributes of specific face"))
 532 (define-key menu-bar-custom-menu [customize-option]
 533   '(menu-item "Specific Option..." customize-option
 534               :help "Customize value of specific option"))
 535 (define-key menu-bar-custom-menu [separator-2]
 536   '("--"))
 537 (define-key menu-bar-custom-menu [customize-changed-options]
 538   '(menu-item "New Options..." customize-changed-options
 539               :help "Options added or changed in recent Emacs versions"))
 540 (define-key menu-bar-custom-menu [customize-saved]
 541   '(menu-item "Saved Options" customize-saved
 542               :help "Customize previously saved options"))
 543 (define-key menu-bar-custom-menu [separator-3]
 544   '("--"))
 545 (define-key menu-bar-custom-menu [customize-browse]
 546   '(menu-item "Browse Customization Groups" customize-browse
 547               :help "Browse all customization groups"))
 548 (define-key menu-bar-custom-menu [customize]
 549   '(menu-item "Top-level Customization Group" customize
 550               :help "The master group called `Emacs'"))
 551
 552 ;(defvar menu-bar-preferences-menu (make-sparse-keymap "Preferences"))
 553
 554 (defmacro menu-bar-make-mm-toggle (fname doc help &optional props)
 555   "Make a menu-item for a global minor mode toggle.
 556 FNAME is the minor mode's name (variable and function).
 557 DOC is the text to use the menu entry.
 558 HELP is the text to use for the tooltip.
 559 PROPS are additional properties."
 560   `'(menu-item ,doc ,fname
 561      ,@(if props props)
 562      :help ,help
 563      :button (:toggle . (and (default-boundp ',fname)
 564                              (default-value ',fname)))))
 565
 566 (defmacro menu-bar-make-toggle (name variable doc message help &rest body)
 567   `(progn
 568      (defun ,name ()
 569        ,(concat "Toggle whether to " (downcase (substring help 0 1))
 570                 (substring help 1) ".")
 571        (interactive)
 572        (if ,(if body `(progn . ,body)
 573               `(progn
 574                  (custom-load-symbol ',variable)
 575                  (let ((set (or (get ',variable 'custom-set) 'set-default))
 576                        (get (or (get ',variable 'custom-get) 'default-value)))
 577                    (funcall set ',variable (not (funcall get ',variable))))))
 578            (message ,message "enabled")
 579          (message ,message "disabled"))
 580        ;; The function `customize-mark-as-set' must only be called when
 581        ;; a variable is set interactively, as the purpose is to mark it as
 582        ;; a candidate for "Save Options", and we do not want to save options
 583        ;; the user have already set explicitly in his init file.
 584        (if (interactive-p) (customize-mark-as-set ',variable)))
 585      '(menu-item ,doc ,name
 586                  :help ,help
 587                  :button (:toggle . (and (default-boundp ',variable)
 588                                          (default-value ',variable))))))
 589
 590 ;;; Assemble all the top-level items of the "Options" menu
 591 (define-key menu-bar-options-menu [customize]
 592   (list 'menu-item "Customize Emacs" menu-bar-custom-menu
 593         :help "Full customization of every Emacs feature"))
 594
 595 (defun menu-bar-options-save ()
 596   "Save current values of Options menu items using Custom."
 597   (interactive)
 598   (let ((need-save nil))
 599     ;; These are set with `customize-set-variable'.
 600     (dolist (elt '(line-number-mode column-number-mode scroll-bar-mode
 601                    debug-on-quit debug-on-error menu-bar-mode tool-bar-mode
 602                    save-place uniquify-buffer-name-style fringe-mode
 603                    case-fold-search cua-mode show-paren-mode
 604                    transient-mark-mode global-font-lock-mode
 605                    display-time-mode auto-compression-mode
 606                    current-language-environment default-input-method
 607                    ;; Saving `text-mode-hook' is somewhat questionable,
 608                    ;; as we might get more than we bargain for, if
 609                    ;; other code may has added hooks as well.
 610                    ;; Nonetheless, not saving it would like be confuse
 611                    ;; more often.
 612                    ;; -- Per Abrahamsen <abraham@dina.kvl.dk> 2002-02-11.
 613                    text-mode-hook))
 614       (and (get elt 'customized-value)
 615            (customize-mark-to-save elt)
 616            (setq need-save t)))
 617     ;; Save if we changed anything.
 618     (when need-save
 619       (custom-save-all))))
 620
 621 (define-key menu-bar-options-menu [save]
 622   '(menu-item "Save Options" menu-bar-options-save
 623               :help "Save options set from the menu above"))
 624
 625 (define-key menu-bar-options-menu [custom-separator]
 626   '("--"))
 627
 628 ;; The "Show/Hide" submenu of menu "Options"
 629
 630 (defvar menu-bar-showhide-menu (make-sparse-keymap "Show/Hide"))
 631
 632 (define-key menu-bar-showhide-menu [column-number-mode]
 633   (menu-bar-make-mm-toggle column-number-mode
 634                            "Show Column Numbers"
 635                            "Show the current column number in the mode line"))
 636
 637 (define-key menu-bar-showhide-menu [line-number-mode]
 638   (menu-bar-make-mm-toggle line-number-mode
 639                            "Show Line Numbers"
 640                            "Show the current line number in the mode line"))
 641
 642 (define-key menu-bar-showhide-menu [linecolumn-separator]
 643   '("--"))
 644
 645 (defun showhide-date-time ()
 646   "Toggle whether to show date and time in the mode-line."
 647   (interactive)
 648   (if (display-time-mode)
 649       (message "Display-time mode enabled.")
 650     (message "Display-time mode disabled."))
 651   (customize-mark-as-set 'display-time-mode))
 652
 653 (define-key menu-bar-showhide-menu [showhide-date-time]
 654   '(menu-item "Date and Time" showhide-date-time
 655               :help "Display date and time in the mode line"
 656               :button (:toggle . display-time-mode)))
 657
 658 (define-key menu-bar-showhide-menu [datetime-separator]
 659   '("--"))
 660
 661 (define-key menu-bar-showhide-menu [showhide-speedbar]
 662   '(menu-item "Speedbar" speedbar-frame-mode
 663               :help "Display a Speedbar quick-navigation frame"
 664               :button (:toggle
 665                        . (and (boundp 'speedbar-frame)
 666                               (frame-live-p (symbol-value 'speedbar-frame))
 667                               (frame-visible-p
 668                                (symbol-value 'speedbar-frame))))))
 669
 670 (defvar menu-bar-showhide-fringe-menu (make-sparse-keymap "Fringe"))
 671
 672 (defun menu-bar-showhide-fringe-menu-customize ()
 673   "Show customization buffer for `fringe-mode'."
 674   (interactive)
 675   (customize-variable 'fringe-mode))
 676
 677 (define-key menu-bar-showhide-fringe-menu [customize]
 678   '(menu-item "Customize" menu-bar-showhide-fringe-menu-customize
 679               :help "Detailed customization of fringe"
 680               :visible (display-graphic-p)))
 681
 682 (defun menu-bar-showhide-fringe-menu-customize-reset ()
 683   "Reset the fringe mode: display fringes on both sides of a window."
 684   (interactive)
 685   (customize-set-variable 'fringe-mode nil))
 686
 687 ;; The real definition is in fringe.el.
 688 ;; This is to prevent errors in the :radio conditions below.
 689 (setq fringe-mode nil)
 690
 691 (define-key menu-bar-showhide-fringe-menu [default]
 692   '(menu-item "Default" menu-bar-showhide-fringe-menu-customize-reset
 693               :help "Default width fringe on both left and right side"
 694               :visible (display-graphic-p)
 695               :button (:radio . (eq fringe-mode nil))))
 696
 697 (defun menu-bar-showhide-fringe-menu-customize-left ()
 698   "Display fringes only on the left of each window."
 699   (interactive)
 700   (require 'fringe)
 701   (customize-set-variable 'fringe-mode '(nil . 0)))
 702
 703 (define-key menu-bar-showhide-fringe-menu [left]
 704   '(menu-item "On the Left" menu-bar-showhide-fringe-menu-customize-left
 705               :help "Fringe only on the left side"
 706               :visible (display-graphic-p)
 707               :button (:radio . (equal fringe-mode '(nil . 0)))))
 708
 709 (defun menu-bar-showhide-fringe-menu-customize-right ()
 710   "Display fringes only on the right of each window."
 711   (interactive)
 712   (require 'fringe)
 713   (customize-set-variable 'fringe-mode '(0 . nil)))
 714
 715 (define-key menu-bar-showhide-fringe-menu [right]
 716   '(menu-item "On the Right" menu-bar-showhide-fringe-menu-customize-right
 717               :help "Fringe only on the right side"
 718               :visible (display-graphic-p)
 719               :button (:radio . (equal fringe-mode '(0 . nil)))))
 720
 721 (defun menu-bar-showhide-fringe-menu-customize-disable ()
 722   "Do not display window fringes."
 723   (interactive)
 724   (require 'fringe)
 725   (customize-set-variable 'fringe-mode 0))
 726
 727 (define-key menu-bar-showhide-fringe-menu [none]
 728   '(menu-item "None" menu-bar-showhide-fringe-menu-customize-disable
 729               :help "Turn off fringe"
 730               :visible (display-graphic-p)
 731               :button (:radio . (eq fringe-mode 0))))
 732
 733 (define-key menu-bar-showhide-menu [showhide-fringe]
 734   (list 'menu-item "Fringe" menu-bar-showhide-fringe-menu
 735         :visible `(display-graphic-p)
 736         :help "Select fringe mode"))
 737
 738 (defvar menu-bar-showhide-scroll-bar-menu (make-sparse-keymap "Scroll-bar"))
 739
 740 (define-key menu-bar-showhide-scroll-bar-menu [right]
 741   '(menu-item "On the Right"
 742               menu-bar-right-scroll-bar
 743               :help "Scroll-bar on the right side"
 744               :visible (display-graphic-p)
 745               :button (:radio . (eq (cdr (assq 'vertical-scroll-bars
 746                                                (frame-parameters))) 'right))))
 747 (defun menu-bar-right-scroll-bar ()
 748   "Display scroll bars on the right of each window."
 749   (interactive)
 750   (customize-set-variable 'scroll-bar-mode 'right))
 751
 752 (define-key menu-bar-showhide-scroll-bar-menu [left]
 753   '(menu-item "On the Left"
 754               menu-bar-left-scroll-bar
 755               :help "Scroll-bar on the left side"
 756               :visible (display-graphic-p)
 757               :button (:radio . (eq (cdr (assq 'vertical-scroll-bars
 758                                                (frame-parameters))) 'left))))
 759
 760 (defun menu-bar-left-scroll-bar ()
 761   "Display scroll bars on the left of each window."
 762   (interactive)
 763   (customize-set-variable 'scroll-bar-mode 'right))
 764
 765 (define-key menu-bar-showhide-scroll-bar-menu [none]
 766   '(menu-item "None"
 767               menu-bar-no-scroll-bar
 768               :help "Turn off scroll-bar"
 769               :visible (display-graphic-p)
 770               :button (:radio . (eq (cdr (assq 'vertical-scroll-bars
 771                                                (frame-parameters))) nil))))
 772
 773 (defun menu-bar-no-scroll-bar ()
 774   "Turn off scroll bars."
 775   (interactive)
 776   (customize-set-variable 'scroll-bar-mode nil))
 777
 778 (define-key menu-bar-showhide-menu [showhide-scroll-bar]
 779   (list 'menu-item "Scroll-bar" menu-bar-showhide-scroll-bar-menu
 780         :visible `(display-graphic-p)
 781         :help "Select scroll-bar mode"))
 782
 783 (define-key menu-bar-showhide-menu [menu-bar-mode]
 784   '(menu-item "Menu-bar" menu-bar-mode
 785               :help "Toggle menu-bar on/off"
 786               :button (:toggle . menu-bar-mode)))
 787
 788 (define-key menu-bar-showhide-menu [showhide-tool-bar]
 789   (list 'menu-item "Tool-bar" 'tool-bar-mode
 790         :help "Turn tool-bar on/off"
 791         :visible `(display-graphic-p)
 792         :button `(:toggle . tool-bar-mode)))
 793
 794 (define-key menu-bar-options-menu [showhide]
 795   (list 'menu-item "Show/Hide" menu-bar-showhide-menu
 796         :help "Toggle on/off various display features"))
 797
 798 (define-key menu-bar-options-menu [showhide-separator]
 799   '("--"))
 800
 801 (define-key menu-bar-options-menu [mule]
 802   ;; It is better not to use backquote here,
 803   ;; because that makes a bootstrapping problem
 804   ;; if you need to recompile all the Lisp files using interpreted code.
 805   (list 'menu-item "Mule (Multilingual Environment)" mule-menu-keymap
 806 ;; Most of the MULE menu actually does make sense in unibyte mode,
 807 ;; e.g. language selection.
 808 ;;;     ':visible 'default-enable-multibyte-characters
 809         ':help "Default language, encodings, input method"))
 810 ;(setq menu-bar-final-items (cons 'mule menu-bar-final-items))
 811 ;(define-key menu-bar-options-menu [preferences]
 812 ;  (list 'menu-item "Preferences" menu-bar-preferences-menu
 813 ;       :help "Toggle important global options"))
 814
 815 (define-key menu-bar-options-menu [mule-separator]
 816   '("--"))
 817
 818 (define-key menu-bar-options-menu [debug-on-quit]
 819   (menu-bar-make-toggle toggle-debug-on-quit debug-on-quit
 820                         "Enter Debugger on Quit/C-g" "Debug on Quit %s"
 821                         "Enter Lisp debugger when C-g is pressed"))
 822 (define-key menu-bar-options-menu [debug-on-error]
 823   (menu-bar-make-toggle toggle-debug-on-error debug-on-error
 824                         "Enter Debugger on Error" "Debug on Error %s"
 825                         "Enter Lisp debugger when an error is signaled"))
 826 (define-key menu-bar-options-menu [debugger-separator]
 827   '("--"))
 828 (define-key menu-bar-options-menu [toggle-auto-compression]
 829   '(menu-item "Automatic File De/compression"
 830               auto-compression-mode
 831               :help "Transparently decompress compressed files"
 832               :button (:toggle . (rassq 'jka-compr-handler
 833                                         file-name-handler-alist))))
 834
 835 (define-key menu-bar-options-menu [save-place]
 836   (menu-bar-make-toggle toggle-save-place-globally save-place
 837                         "Save Place in Files between Sessions"
 838                         "Saving place in files %s"
 839                         "Save Emacs state for next session"))
 840
 841 (define-key menu-bar-options-menu [uniquify]
 842   (menu-bar-make-toggle toggle-uniquify-buffer-names uniquify-buffer-name-style
 843                         "Use Directory Names in Buffer Names"
 844                         "Directory name in buffer names (uniquify) %s"
 845                         "Uniquify buffer names by adding parent directory names"
 846                         (require 'uniquify)
 847                         (setq uniquify-buffer-name-style
 848                               (if (not uniquify-buffer-name-style)
 849                                   'forward))))
 850
 851 (define-key menu-bar-options-menu [edit-options-separator]
 852   '("--"))
 853 (define-key menu-bar-options-menu [cua-mode]
 854   '(menu-item "CUA-style cut and paste"
 855               menu-bar-toggle-cua-mode
 856               :help "Use C-z/C-x/C-c/C-v keys for undo/cut/copy/paste"
 857               :button (:toggle . cua-mode)))
 858
 859 (defun menu-bar-toggle-cua-mode ()
 860   "Toggle CUA key-binding mode.
 861 When enabled, using shifted movement keys will activate the region (and
 862 highlight the region using `transient-mark-mode'), and typed text replaces
 863 the active selection.  C-z, C-x, C-c, and C-v will undo, cut, copy, and
 864 paste (in addition to the normal Emacs bindings)."
 865   (interactive)
 866   (cua-mode nil)
 867   (customize-mark-as-set 'cua-mode)
 868   (message "CUA-style cut and paste %s"
 869            (if cua-mode "enabled" "disabled")))
 870
 871 (define-key menu-bar-options-menu [case-fold-search]
 872   (menu-bar-make-toggle toggle-case-fold-search case-fold-search
 873                         "Case-Insensitive Search"
 874                         "Case-Insensitive Search %s"
 875                         "Ignore letter-case in search"))
 876
 877 (defun menu-bar-text-mode-auto-fill ()
 878   (interactive)
 879   (toggle-text-mode-auto-fill)
 880   ;; This is somewhat questionable, as `text-mode-hook'
 881   ;; might have changed outside customize.
 882   ;; -- Per Abrahamsen <abraham@dina.kvl.dk> 2002-02-11.
 883   (customize-mark-as-set 'text-mode-hook))
 884
 885 (define-key menu-bar-options-menu [auto-fill-mode]
 886   '(menu-item "Word Wrap in Text Modes"
 887               menu-bar-text-mode-auto-fill
 888               :help "Automatically fill text between left and right margins (Auto Fill)"
 889               :button (:toggle . (if (listp text-mode-hook)
 890                                      (member 'turn-on-auto-fill text-mode-hook)
 891                                    (eq 'turn-on-auto-fill text-mode-hook)))))
 892 (define-key menu-bar-options-menu [truncate-lines]
 893   '(menu-item "Truncate Long Lines in this Buffer"
 894               toggle-truncate-lines
 895               :help "Truncate long lines on the screen"
 896               :button (:toggle . truncate-lines)))
 897
 898 (define-key menu-bar-options-menu [highlight-separator]
 899   '("--"))
 900 (define-key menu-bar-options-menu [highlight-paren-mode]
 901   (menu-bar-make-mm-toggle show-paren-mode
 902                            "Paren Match Highlighting"
 903                            "Highlight matching/mismatched parentheses at cursor (Show Paren mode)"))
 904 (define-key menu-bar-options-menu [transient-mark-mode]
 905   (menu-bar-make-mm-toggle transient-mark-mode
 906                            "Active Region Highlighting"
 907                            "Make text in active region stand out in color (Transient Mark mode)"
 908                            (:enable (not cua-mode))))
 909 (define-key menu-bar-options-menu [toggle-global-lazy-font-lock-mode]
 910   (menu-bar-make-mm-toggle global-font-lock-mode
 911                            "Syntax Highlighting"
 912                            "Colorize text based on language syntax (Global Font Lock mode)"))
 913
 914 \f
 915 ;; The "Tools" menu items
 916
 917 (defun send-mail-item-name ()
 918   (let* ((known-send-mail-commands '((sendmail-user-agent . "sendmail")
 919                                      (mh-e-user-agent . "MH")
 920                                      (message-user-agent . "Gnus Message")
 921                                      (gnus-user-agent . "Gnus")))
 922          (name (assq mail-user-agent known-send-mail-commands)))
 923     (if name
 924         (setq name (cdr name))
 925       (setq name (symbol-name mail-user-agent))
 926       (if (string-match "\\(.+\\)-user-agent" name)
 927           (setq name (match-string 1 name))))
 928     name))
 929
 930 (defun read-mail-item-name ()
 931   (let* ((known-rmail-commands '((rmail . "RMAIL")
 932                                  (mh-rmail . "MH")
 933                                  (gnus . "Gnus")))
 934          (known (assq read-mail-command known-rmail-commands)))
 935     (if known (cdr known) (symbol-name read-mail-command))))
 936
 937 (defvar menu-bar-games-menu (make-sparse-keymap "Games"))
 938
 939 (define-key menu-bar-tools-menu [games]
 940   (list 'menu-item "Games" menu-bar-games-menu))
 941
 942 (define-key menu-bar-tools-menu [separator-games]
 943   '("--"))
 944
 945 (define-key menu-bar-games-menu [zone]
 946   '(menu-item "Zone Out"  zone
 947               :help "Play tricks with Emacs display when Emacs is idle"))
 948 (define-key menu-bar-games-menu [yow]
 949   '(menu-item "Random Quotation"  yow
 950               :help "Display a random Zippy quotation"))
 951 (define-key menu-bar-games-menu [tetris]
 952   '(menu-item "Tetris"  tetris))
 953 (define-key menu-bar-games-menu [solitaire]
 954   '(menu-item "Solitaire"  solitaire))
 955 (define-key menu-bar-games-menu [snake]
 956   '(menu-item "Snake"  snake
 957               :help "Move snake around avoiding collisions"))
 958 (define-key menu-bar-games-menu [mult]
 959   '(menu-item "Multiplication Puzzle"  mpuz
 960               :help "Excercise brain with multiplication"))
 961 (define-key menu-bar-games-menu [life]
 962   '(menu-item "Life"  life
 963               :help "Watch how John Conway's cellular automaton evolves"))
 964 (define-key menu-bar-games-menu [hanoi]
 965   '(menu-item "Towers of Hanoi" hanoi
 966               :help "Watch Towers-of-Hanoi puzzle solved by Emacs"))
 967 (define-key menu-bar-games-menu [gomoku]
 968   '(menu-item "Gomoku"  gomoku
 969               :help "Mark 5 contiguous squares (like tic-tac-toe)"))
 970 (define-key menu-bar-games-menu [black-box]
 971   '(menu-item "Blackbox"  blackbox
 972               :help "Find balls in a black box by shooting rays"))
 973 (define-key menu-bar-games-menu [adventure]
 974   '(menu-item "Adventure"  dunnet
 975               :help "Dunnet, a text Adventure game for Emacs"))
 976 (define-key menu-bar-games-menu [5x5]
 977   '(menu-item "5x5" 5x5
 978               :help "Fill in all the squares on a 5x5 board"))
 979
 980 (define-key menu-bar-tools-menu [simple-calculator]
 981   '(menu-item "Simple Calculator" calculator
 982               :help "Invoke the Emacs built-in quick calculator"))
 983 (define-key menu-bar-tools-menu [calc]
 984   '(menu-item "Programmable Calculator" calc
 985               :help "Invoke the Emacs built-in full scientific calculator"))
 986 (define-key menu-bar-tools-menu [calendar]
 987   '(menu-item "Display Calendar" calendar))
 988
 989 (define-key menu-bar-tools-menu [separator-net]
 990   '("--"))
 991
 992 (define-key menu-bar-tools-menu [directory-search]
 993   '(menu-item "Directory Search" eudc-tools-menu
 994               :help "Query directory servers via LDAP, CCSO PH/QI or BBDB"))
 995 (define-key menu-bar-tools-menu [compose-mail]
 996   (list
 997    'menu-item `(format "Send Mail (with %s)" (send-mail-item-name))
 998    'compose-mail
 999    :visible `(and mail-user-agent (not (eq mail-user-agent 'ignore)))
1000    :help "Send a mail message"))
1001 (define-key menu-bar-tools-menu [rmail]
1002   (list
1003    'menu-item `(format "Read Mail (with %s)" (read-mail-item-name))
1004    'menu-bar-read-mail
1005    :visible `(and read-mail-command (not (eq read-mail-command 'ignore)))
1006    :help "Read your mail and reply to it"))
1007
1008 (defun menu-bar-read-mail ()
1009   "Read mail using `read-mail-command'."
1010   (interactive)
1011   (call-interactively read-mail-command))
1012
1013 (define-key menu-bar-tools-menu [gnus]
1014   '(menu-item "Read Net News (Gnus)" gnus
1015               :help "Read network news groups"))
1016
1017 (define-key menu-bar-tools-menu [separator-vc]
1018   '("--"))
1019
1020 (defvar vc-menu-map (make-sparse-keymap "Version Control"))
1021 (define-key menu-bar-tools-menu [pcl-cvs]
1022   `(menu-item "PCL-CVS" ,cvs-global-menu
1023               :help "Module-level interface to CVS"))
1024 (define-key menu-bar-tools-menu [vc]
1025   (list 'menu-item "Version Control" vc-menu-map
1026         :help "Interface to RCS, CVS, SCCS"))
1027
1028 (define-key menu-bar-tools-menu [separator-compare]
1029   '("--"))
1030
1031 (define-key menu-bar-tools-menu [ediff-misc]
1032   '(menu-item "Ediff Miscellanea" menu-bar-ediff-misc-menu
1033               :help "Ediff manual, customization, sessions, etc."))
1034 (define-key menu-bar-tools-menu [epatch]
1035   '(menu-item "Apply Patch" menu-bar-epatch-menu))
1036 (define-key menu-bar-tools-menu [ediff-merge]
1037   '(menu-item "Merge" menu-bar-ediff-merge-menu
1038               :help "Merge different revisions of files/directories"))
1039 (define-key menu-bar-tools-menu [compare]
1040   '(menu-item "Compare (Ediff)" menu-bar-ediff-menu
1041               :help "Display differences between files/directories"))
1042
1043
1044 (define-key menu-bar-tools-menu [separator-spell]
1045   '("--"))
1046
1047 (define-key menu-bar-tools-menu [spell]
1048   '(menu-item "Spell Checking" ispell-menu-map))
1049
1050 (define-key menu-bar-tools-menu [separator-prog]
1051   '("--"))
1052
1053 (define-key menu-bar-tools-menu [gdb]
1054   '(menu-item "Debugger (GDB)..." gdb
1055               :help "Debug a program from within Emacs with GDB"))
1056 (define-key menu-bar-tools-menu [shell-on-region]
1057   '(menu-item "Shell Command on Region..." shell-command-on-region
1058               :enable mark-active
1059               :help "Pass marked region to a shell command"))
1060 (define-key menu-bar-tools-menu [shell]
1061   '(menu-item "Shell Command..." shell-command
1062               :help "Invoke a shell command and catch its output"))
1063 (define-key menu-bar-tools-menu [compile]
1064   '(menu-item "Compile..." compile
1065               :help "Invoke compiler or Make, view compilation errors"))
1066 (define-key menu-bar-tools-menu [grep]
1067   '(menu-item "Search Files (Grep)..." grep
1068               :help "Search files for strings or regexps (with Grep)"))
1069
1070 \f
1071 ;; The "Help" menu items
1072
1073 (defvar menu-bar-describe-menu (make-sparse-keymap "Describe"))
1074
1075 (define-key menu-bar-describe-menu [mule-diag]
1076   '(menu-item "Show All of Mule Status" mule-diag
1077               :visible default-enable-multibyte-characters
1078               :help "Display multilingual environment settings"))
1079 (define-key menu-bar-describe-menu [describe-coding-system-briefly]
1080   '(menu-item "Describe Coding System (Briefly)..."
1081               describe-current-coding-system-briefly
1082               :visible default-enable-multibyte-characters))
1083 (define-key menu-bar-describe-menu [describe-coding-system]
1084   '(menu-item "Describe Coding System..." describe-coding-system
1085               :visible default-enable-multibyte-characters))
1086 (define-key menu-bar-describe-menu [describe-input-method]
1087   '(menu-item "Describe Input Method..." describe-input-method
1088               :visible default-enable-multibyte-characters
1089               :help "Keyboard layout for specific input method"))
1090 (define-key menu-bar-describe-menu [describe-language-environment]
1091   (list 'menu-item "Describe Language Environment"
1092         describe-language-environment-map
1093         :help "Show multilingual settings for a specific language"))
1094
1095 (define-key menu-bar-describe-menu [separator-desc-mule]
1096   '("--"))
1097
1098 (define-key menu-bar-describe-menu [list-keybindings]
1099   '(menu-item "List Key Bindings" describe-bindings
1100               :help "Display a list of all current keybindings"))
1101 (define-key menu-bar-describe-menu [describe-current-display-table]
1102   '(menu-item "Describe Display Table" describe-current-display-table
1103               :help "Describe the current display table"))
1104 (define-key menu-bar-describe-menu [describe-face]
1105   '(menu-item "Describe Face..." describe-face
1106               :help "Display the properties of a face"))
1107 (define-key menu-bar-describe-menu [describe-variable]
1108   '(menu-item "Describe Variable..." describe-variable
1109               :help "Display documentation of variable/option"))
1110 (define-key menu-bar-describe-menu [describe-function]
1111   '(menu-item "Describe Function..." describe-function
1112               :help "Display documentation of function/command"))
1113 (define-key menu-bar-describe-menu [describe-key]
1114   '(menu-item "Describe Key..." describe-key
1115               ;; Users typically don't identify keys and menu items...
1116               :help "Display documentation of command bound to a \
1117 key (or menu-item)"))
1118 (define-key menu-bar-describe-menu [describe-mode]
1119   '(menu-item "Describe Buffer Modes" describe-mode
1120               :help "Describe this buffer's major and minor mode"))
1121
1122 (defvar menu-bar-apropos-menu (make-sparse-keymap "Apropos"))
1123 (defun menu-bar-read-lispref ()
1124   "Display the Emacs Lisp Reference manual in Info mode."
1125   (interactive)
1126   (info "elisp"))
1127
1128 (defun menu-bar-read-lispintro ()
1129   "Display the Introduction to Emacs Lisp Programming in Info mode."
1130   (interactive)
1131   (info "eintr"))
1132
1133 (defun search-emacs-glossary ()
1134   "Display the Glossary node of the Emacs manual in Info mode."
1135   (interactive)
1136   (info "(emacs)Glossary"))
1137
1138 (defun emacs-index-search (topic)
1139   "Look up TOPIC in the indices of the Emacs User Manual."
1140   (interactive "sSubject to look up: ")
1141   (info "emacs")
1142   (Info-index topic))
1143
1144 (defun elisp-index-search (topic)
1145   "Look up TOPIC in the indices of the Emacs Lisp Reference Manual."
1146   (interactive "sSubject to look up: ")
1147   (info "elisp")
1148   (Info-index topic))
1149
1150 (define-key menu-bar-apropos-menu [apropos-documentation]
1151   '(menu-item "Search Documentation Strings..." apropos-documentation
1152               :help
1153               "Find functions and variables whose doc strings match a regexp"))
1154 (define-key menu-bar-apropos-menu [apropos]
1155   '(menu-item "Find Any Object by Name..."  apropos
1156               :help "Find symbols of any kind whose names match a regexp"))
1157 (define-key menu-bar-apropos-menu [apropos-value]
1158   '(menu-item "Find Options by Value..." apropos-value
1159               :help "Find variables whose values match a regexp"))
1160 (define-key menu-bar-apropos-menu [apropos-variables]
1161   '(menu-item "Find Options by Name..." apropos-variable
1162               :help "Find variables whose names match a regexp"))
1163 (define-key menu-bar-apropos-menu [apropos-commands]
1164   '(menu-item "Find Commands by Name..." apropos-command
1165               :help "Find commands whose names match a regexp"))
1166 (define-key menu-bar-apropos-menu [sep1]
1167   '("--"))
1168 (define-key menu-bar-apropos-menu [elisp-index-search]
1169   '(menu-item "Look Up Subject in ELisp Manual..." elisp-index-search
1170               :help "Find description of a subject in Emacs Lisp manual"))
1171 (define-key menu-bar-apropos-menu [emacs-index-search]
1172   '(menu-item "Look Up Subject in User Manual..." emacs-index-search
1173               :help "Find description of a subject in Emacs User manual"))
1174 (define-key menu-bar-apropos-menu [emacs-glossary]
1175   '(menu-item "Emacs Terminology" search-emacs-glossary
1176               :help "Display the Glossary section of the Emacs manual"))
1177
1178 (defvar menu-bar-manuals-menu (make-sparse-keymap "More Manuals"))
1179
1180 (define-key menu-bar-manuals-menu [man]
1181   '(menu-item "Read Man Page..." manual-entry
1182               :help "Man-page docs for external commands and libraries"))
1183 (define-key menu-bar-manuals-menu [sep2]
1184   '("--"))
1185 (define-key menu-bar-manuals-menu [order-emacs-manuals]
1186   '(menu-item "Ordering Manuals" view-order-manuals
1187               :help "How to order manuals from the Free Software Foundation"))
1188 (define-key menu-bar-manuals-menu [info]
1189   '(menu-item "All Other Manuals (Info)" Info-directory
1190               :help "Read any of the installed manuals"))
1191 (define-key menu-bar-manuals-menu [info-elisp]
1192   '(menu-item "Emacs Lisp Reference" menu-bar-read-lispref
1193               :help "Read the Emacs Lisp Reference manual"))
1194 (define-key menu-bar-manuals-menu [info-elintro]
1195   '(menu-item "Introduction to Emacs Lisp" menu-bar-read-lispintro
1196               :help "Read the Introduction to Emacs Lisp Programming"))
1197 (define-key menu-bar-manuals-menu [sep3]
1198   '("--"))
1199 (define-key menu-bar-manuals-menu [command]
1200   '(menu-item "Find Command in Manual" Info-goto-emacs-command-node
1201               :help "Display manual section that describes a command"))
1202 (define-key menu-bar-manuals-menu [key]
1203   '(menu-item "Find Key in Manual" Info-goto-emacs-key-command-node
1204               :help "Display manual section that describes a key"))
1205
1206 (define-key menu-bar-help-menu [eliza]
1207   '(menu-item "Emacs Psychiatrist" doctor
1208               :help "Our doctor will help you feel better"))
1209 (define-key menu-bar-help-menu [sep4]
1210   '("--"))
1211 (define-key menu-bar-help-menu [describe-no-warranty]
1212   '(menu-item "(Non)Warranty" describe-no-warranty
1213               :help "Explain that Emacs has NO WARRANTY"))
1214 (define-key menu-bar-help-menu [describe-copying]
1215   '(menu-item "Copying Conditions" describe-copying
1216               :help "Show the Emacs license (GPL)"))
1217 (define-key menu-bar-help-menu [describe-distribution]
1218   '(menu-item "Getting New Versions" describe-distribution
1219               :help "How to get latest versions of Emacs"))
1220 (define-key menu-bar-help-menu [more]
1221   '(menu-item "Find Extra Packages"
1222               menu-bar-help-extra-packages
1223               :help "Where to find some extra packages and possible updates"))
1224 (defun menu-bar-help-extra-packages ()
1225   "Display help about some additional packages available for Emacs."
1226   (interactive)
1227   (let (enable-local-variables)
1228     (view-file (expand-file-name "MORE.STUFF"
1229                                  data-directory))
1230     (goto-address)))
1231 (define-key menu-bar-help-menu [about]
1232   '(menu-item "About Emacs" display-splash-screen
1233               :help "Display version number, copyright info, and basic help"))
1234 (define-key menu-bar-help-menu [sep2]
1235   '("--"))
1236 (define-key menu-bar-help-menu [finder-by-keyword]
1237   '(menu-item "Find Emacs Packages..." finder-by-keyword
1238               :help "Find packages and features by keyword"))
1239 (define-key menu-bar-help-menu [manuals]
1240   (list 'menu-item "More Manuals" menu-bar-manuals-menu
1241         :help "Search and browse on-line manuals"))
1242 (define-key menu-bar-help-menu [emacs-manual]
1243   '(menu-item "Read the Emacs Manual" info-emacs-manual
1244               :help "Full documentation of Emacs features"))
1245 (define-key menu-bar-help-menu [describe]
1246   (list 'menu-item "Describe" menu-bar-describe-menu
1247         :help "Describe commands, variables, keys"))
1248 (define-key menu-bar-help-menu [apropos]
1249   (list 'menu-item "Search Documentation" menu-bar-apropos-menu
1250         :help "Look up terms, find commands, options, etc. (Apropos)"))
1251 (define-key menu-bar-help-menu [sep1]
1252   '("--"))
1253 (define-key menu-bar-help-menu [report-emacs-bug]
1254   '(menu-item "Send Bug Report..." report-emacs-bug
1255               :help "Send e-mail to Emacs maintainers"))
1256 (define-key menu-bar-help-menu [emacs-problems]
1257   '(menu-item "Emacs Known Problems" view-emacs-problems))
1258 (define-key menu-bar-help-menu [emacs-news]
1259   '(menu-item "Emacs News" view-emacs-news
1260               :help "New features of this version"))
1261 (define-key menu-bar-help-menu [emacs-faq]
1262   '(menu-item "Emacs FAQ" view-emacs-FAQ))
1263
1264 (defun help-with-tutorial-spec-language ()
1265   "Use the Emacs tutorial, specifying which language you want."
1266   (interactive)
1267   (help-with-tutorial t))
1268
1269 (define-key menu-bar-help-menu [emacs-tutorial-language-specific]
1270   '(menu-item "Emacs Tutorial (choose language)..."
1271               help-with-tutorial-spec-language
1272               :help "Learn how to use Emacs (choose a language)"))
1273 (define-key menu-bar-help-menu [emacs-tutorial]
1274   '(menu-item "Emacs Tutorial" help-with-tutorial
1275               :help "Learn how to use Emacs"))
1276
1277 (defun kill-this-buffer ()      ; for the menubar
1278   "Kill the current buffer."
1279   (interactive)
1280   (kill-buffer (current-buffer)))
1281
1282 (defun kill-this-buffer-enabled-p ()
1283   (let ((count 0)
1284         (buffers (buffer-list)))
1285     (while buffers
1286       (or (string-match "^ " (buffer-name (car buffers)))
1287           (setq count (1+ count)))
1288       (setq buffers (cdr buffers)))
1289     (and (not (window-minibuffer-p (frame-selected-window menu-updating-frame)))
1290          (> count 1))))
1291
1292 (put 'dired 'menu-enable
1293      '(not (window-minibuffer-p (frame-selected-window menu-updating-frame))))
1294
1295 ;; Permit deleting frame if it would leave a visible or iconified frame.
1296 (defun delete-frame-enabled-p ()
1297   "Return non-nil if `delete-frame' should be enabled in the menu bar."
1298   (let ((frames (frame-list))
1299         (count 0))
1300     (while frames
1301       (if (frame-visible-p (car frames))
1302           (setq count (1+ count)))
1303       (setq frames (cdr frames)))
1304     (> count 1)))
1305
1306 (defcustom yank-menu-length 20
1307   "*Maximum length to display in the yank-menu."
1308   :type 'integer
1309   :group 'mouse)
1310
1311 (defun menu-bar-update-yank-menu (string old)
1312   (let ((front (car (cdr yank-menu)))
1313         (menu-string (if (<= (length string) yank-menu-length)
1314                          string
1315                        (concat
1316                         (substring string 0 (/ yank-menu-length 2))
1317                         "..."
1318                         (substring string (- (/ yank-menu-length 2)))))))
1319     ;; Don't let the menu string be all dashes
1320     ;; because that has a special meaning in a menu.
1321     (if (string-match "\\`-+\\'" menu-string)
1322         (setq menu-string (concat menu-string " ")))
1323     ;; If we're supposed to be extending an existing string, and that
1324     ;; string really is at the front of the menu, then update it in place.
1325     (if (and old (or (eq old (car front))
1326                      (string= old (car front))))
1327         (progn
1328           (setcar front string)
1329           (setcar (cdr front) menu-string))
1330       (setcdr yank-menu
1331               (cons
1332                (cons string (cons menu-string 'menu-bar-select-yank))
1333                (cdr yank-menu)))))
1334   (if (> (length (cdr yank-menu)) kill-ring-max)
1335       (setcdr (nthcdr kill-ring-max yank-menu) nil)))
1336
1337 (put 'menu-bar-select-yank 'apropos-inhibit t)
1338 (defun menu-bar-select-yank ()
1339   (interactive "*")
1340   (push-mark (point))
1341   (insert last-command-event))
1342
1343 \f
1344 (defcustom buffers-menu-show-directories 'unless-uniquify
1345   "If non-nil, show directories in the Buffers menu for buffers that have them.
1346 The special value `unless-uniquify' means that directories will be shown
1347 unless `uniquify-buffer-name-style' is non-nil (in which case, buffer
1348 names should include enough of a buffer's directory to distinguish it
1349 from other buffers).
1350
1351 Setting this variable directly does not take effect until next time the
1352 Buffers menu is regenerated."
1353   :set (lambda (symbol value)
1354          (set symbol value)
1355          (menu-bar-update-buffers t))
1356   :initialize 'custom-initialize-default
1357   :type '(choice (const :tag "Never" nil)
1358                  (const :tag "Unless uniquify is enabled" unless-uniquify)
1359                  (const :tag "Always" t))
1360   :group 'menu)
1361
1362 (defcustom buffers-menu-show-status t
1363   "If non-nil, show modified/read-only status of buffers in the Buffers menu.
1364 Setting this variable directly does not take effect until next time the
1365 Buffers menu is regenerated."
1366   :set (lambda (symbol value)
1367          (set symbol value)
1368          (menu-bar-update-buffers t))
1369   :initialize 'custom-initialize-default
1370   :type 'boolean
1371   :group 'menu)
1372
1373 (defvar list-buffers-directory nil)
1374
1375 (defvar menu-bar-update-buffers-maxbuf)
1376
1377 (defun menu-bar-select-buffer ()
1378   (interactive)
1379   (switch-to-buffer last-command-event))
1380
1381 (defun menu-bar-select-frame ()
1382   (interactive)
1383   (let (frame)
1384     (dolist (f (frame-list))
1385       (when (equal last-command-event (frame-parameter f 'name))
1386         (setq frame f)))
1387   (make-frame-visible frame)
1388   (raise-frame frame)
1389   (select-frame frame)))
1390
1391 (defun menu-bar-update-buffers-1 (elt)
1392   (let* ((buf (car elt))
1393          (file
1394           (and (if (eq buffers-menu-show-directories 'unless-uniquify)
1395                    (or (not (boundp 'uniquify-buffer-name-style))
1396                        (null uniquify-buffer-name-style))
1397                  buffers-menu-show-directories)
1398                (or (buffer-file-name buf)
1399                    (buffer-local-value 'list-buffers-directory buf)))))
1400     (when file
1401       (setq file (file-name-directory file)))
1402     (when (and file (> (length file) 20))
1403       (setq file (concat "..." (substring file -17))))
1404     (cons (if buffers-menu-show-status
1405               (let ((mod (if (buffer-modified-p buf) "*" ""))
1406                     (ro (if (buffer-local-value 'buffer-read-only buf) "%" "")))
1407                 (if file
1408                     (format "%s  %s%s  --  %s" (cdr elt) mod ro file)
1409                   (format "%s  %s%s" (cdr elt) mod ro)))
1410             (if file
1411                 (format "%s  --  %s"  (cdr elt) file)
1412               (cdr elt)))
1413           buf)))
1414
1415 ;; Used to cache the menu entries for commands in the Buffers menu
1416 (defvar menu-bar-buffers-menu-command-entries nil)
1417
1418 (defun menu-bar-update-buffers (&optional force)
1419   ;; If user discards the Buffers item, play along.
1420   (and (lookup-key (current-global-map) [menu-bar buffer])
1421        (or force (frame-or-buffer-changed-p))
1422        (let ((buffers (buffer-list))
1423              (frames (frame-list))
1424              buffers-menu frames-menu)
1425          ;; If requested, list only the N most recently selected buffers.
1426          (if (and (integerp buffers-menu-max-size)
1427                   (> buffers-menu-max-size 1))
1428              (if (> (length buffers) buffers-menu-max-size)
1429                  (setcdr (nthcdr buffers-menu-max-size buffers) nil)))
1430
1431          ;; Make the menu of buffers proper.
1432          (setq buffers-menu
1433                (let* ((buffer-list
1434                        (mapcar 'list buffers))
1435                       (menu-bar-update-buffers-maxbuf 0)
1436                       alist)
1437                  ;; Put into each element of buffer-list
1438                  ;; the name for actual display,
1439                  ;; perhaps truncated in the middle.
1440                  (dolist (buf buffer-list)
1441                    (let ((name (buffer-name (car buf))))
1442                      (setcdr buf
1443                              (if (> (length name) 27)
1444                                  (concat (substring name 0 12)
1445                                          "..."
1446                                          (substring name -12))
1447                                name))))
1448                  ;; Compute the maximum length of any name.
1449                  (dolist (buf buffer-list)
1450                    (unless (eq ?\  (aref (cdr buf) 0))
1451                      (setq menu-bar-update-buffers-maxbuf
1452                            (max menu-bar-update-buffers-maxbuf
1453                                 (length (cdr buf))))))
1454                  ;; Set ALIST to an alist of the form
1455                  ;; ITEM-STRING . BUFFER
1456                  (dolist (buf buffer-list)
1457                    (unless (eq ?\  (aref (cdr buf) 0))
1458                      (push (menu-bar-update-buffers-1 buf) alist)))
1459                  ;; Now make the actual list of items, and add
1460                  ;; some miscellaneous buffer commands to the end.
1461                  (mapcar (lambda (pair)
1462                            ;; This is somewhat risque, to use
1463                            ;; the buffer name itself as the event
1464                            ;; type to define, but it works.
1465                            ;; It would not work to use the buffer
1466                            ;; since a buffer as an event has its
1467                            ;; own meaning.
1468                            (nconc (list (buffer-name (cdr pair))
1469                                         (car pair)
1470                                         (cons nil nil))
1471                                   'menu-bar-select-buffer))
1472                          (nreverse alist))))
1473
1474          ;; Make a Frames menu if we have more than one frame.
1475          (when (cdr frames)
1476            (let ((frames-menu
1477                   (cons 'keymap
1478                         (cons "Select Frame"
1479                               (mapcar
1480                                (lambda (frame)
1481                                  (nconc
1482                                   (list (frame-parameter frame 'name)
1483                                         (frame-parameter frame 'name)
1484                                         (cons nil nil))
1485                                   'menu-bar-select-frame))
1486                                frames)))))
1487              ;; Put it after the normal buffers
1488              (setq buffers-menu
1489                    (nconc buffers-menu
1490                           `((frames-separator "--")
1491                             (frames menu-item "Frames" ,frames-menu))))))
1492
1493          ;; Add in some normal commands at the end of the menu.  We use
1494          ;; the copy cached in `menu-bar-buffers-menu-command-entries'
1495          ;; if it's been set already.  Note that we can't use constant
1496          ;; lists for the menu-entries, because the low-level menu-code
1497          ;; modifies them.
1498          (unless menu-bar-buffers-menu-command-entries
1499            (setq menu-bar-buffers-menu-command-entries
1500                  (list '(command-separator "--")
1501                        (list 'next-buffer
1502                              'menu-item
1503                              "Next Buffer"
1504                              'next-buffer
1505                              :help "Switch to the \"next\" buffer in a cyclic order")
1506                        (list 'prev-buffer
1507                              'menu-item
1508                              "Previous Buffer"
1509                              'prev-buffer
1510                              :help "Switch to the \"previous\" buffer in a cyclic order")
1511                        (list 'select-named-buffer
1512                              'menu-item
1513                              "Select Named Buffer..."
1514                              'switch-to-buffer
1515                              :help "Prompt for a buffer name, and select that buffer in the current window")
1516                        (list 'list-all-buffers
1517                              'menu-item
1518                              "List All Buffers"
1519                              'list-buffers
1520                              :help "Pop up a window listing all emacs buffers"
1521                              ))))
1522          (setq buffers-menu
1523                (nconc buffers-menu menu-bar-buffers-menu-command-entries))
1524
1525          (setq buffers-menu (cons 'keymap (cons "Select Buffer" buffers-menu)))
1526          (define-key (current-global-map) [menu-bar buffer]
1527            (cons "Buffers" buffers-menu)))))
1528
1529 (add-hook 'menu-bar-update-hook 'menu-bar-update-buffers)
1530
1531 (menu-bar-update-buffers)
1532
1533 ;; this version is too slow
1534 ;;(defun format-buffers-menu-line (buffer)
1535 ;;  "Returns a string to represent the given buffer in the Buffer menu.
1536 ;;nil means the buffer shouldn't be listed.  You can redefine this."
1537 ;;  (if (string-match "\\` " (buffer-name buffer))
1538 ;;      nil
1539 ;;    (save-excursion
1540 ;;     (set-buffer buffer)
1541 ;;     (let ((size (buffer-size)))
1542 ;;       (format "%s%s %-19s %6s %-15s %s"
1543 ;;             (if (buffer-modified-p) "*" " ")
1544 ;;             (if buffer-read-only "%" " ")
1545 ;;             (buffer-name)
1546 ;;             size
1547 ;;             mode-name
1548 ;;             (or (buffer-file-name) ""))))))
1549 \f
1550 ;;; Set up a menu bar menu for the minibuffer.
1551
1552 (dolist (map (list minibuffer-local-map
1553                    ;; This shouldn't be necessary, but there's a funny
1554                    ;; bug in keymap.c that I don't understand yet.  -stef
1555                    minibuffer-local-completion-map))
1556   (define-key map [menu-bar minibuf]
1557     (cons "Minibuf" (make-sparse-keymap "Minibuf"))))
1558
1559 (let ((map minibuffer-local-completion-map))
1560   (define-key map [menu-bar minibuf ?\?]
1561     (list 'menu-item "List Completions" 'minibuffer-completion-help
1562           :help "Display all possible completions"))
1563   (define-key map [menu-bar minibuf space]
1564     (list 'menu-item "Complete Word" 'minibuffer-complete-word
1565           :help "Complete at most one word"))
1566   (define-key map [menu-bar minibuf tab]
1567     (list 'menu-item "Complete" 'minibuffer-complete
1568           :help "Complete as far as possible")))
1569
1570 (let ((map minibuffer-local-map))
1571   (define-key map [menu-bar minibuf quit]
1572     (list 'menu-item "Quit" 'keyboard-escape-quit
1573           :help "Abort input and exit minibuffer"))
1574   (define-key map [menu-bar minibuf return]
1575     (list 'menu-item "Enter" 'exit-minibuffer
1576           :help "Terminate input and exit minibuffer")))
1577 \f
1578 (defcustom menu-bar-mode t
1579   "Toggle display of a menu bar on each frame.
1580 Setting this variable directly does not take effect;
1581 use either \\[customize] or the function `menu-bar-mode'."
1582   :set (lambda (symbol value)
1583          (menu-bar-mode (or value 0)))
1584   :initialize 'custom-initialize-default
1585   :type 'boolean
1586   :group 'frames)
1587
1588 (defun menu-bar-mode (&optional flag)
1589   "Toggle display of a menu bar on each frame.
1590 This command applies to all frames that exist and frames to be
1591 created in the future.
1592 With a numeric argument, if the argument is positive,
1593 turn on menu bars; otherwise, turn off menu bars."
1594   (interactive "P")
1595
1596   ;; Make menu-bar-mode and default-frame-alist consistent.
1597   (let ((default (assq 'menu-bar-lines default-frame-alist)))
1598     (if default
1599         (setq menu-bar-mode (not (eq (cdr default) 0)))
1600       (setq default-frame-alist
1601             (cons (cons 'menu-bar-lines (if menu-bar-mode 1 0))
1602                   default-frame-alist))))
1603
1604   ;; Toggle or set the mode, according to FLAG.
1605   (setq menu-bar-mode (if (null flag) (not menu-bar-mode)
1606                         (> (prefix-numeric-value flag) 0)))
1607
1608   ;; Apply it to default-frame-alist.
1609   (let ((parameter (assq 'menu-bar-lines default-frame-alist)))
1610     (if (consp parameter)
1611         (setcdr parameter (if menu-bar-mode 1 0))
1612       (setq default-frame-alist
1613             (cons (cons 'menu-bar-lines (if menu-bar-mode 1 0))
1614                   default-frame-alist))))
1615
1616   ;; Apply it to existing frames.
1617   (let ((frames (frame-list)))
1618     (while frames
1619       (let ((height (cdr (assq 'height (frame-parameters (car frames))))))
1620         (modify-frame-parameters (car frames)
1621                                  (list (cons 'menu-bar-lines
1622                                              (if menu-bar-mode 1 0))))
1623         (modify-frame-parameters (car frames)
1624                                  (list (cons 'height height))))
1625       (setq frames (cdr frames))))
1626
1627   (when (interactive-p)
1628     (if menu-bar-mode
1629         (message "Menu-bar mode enabled.")
1630       (message "Menu-bar mode disabled.  Use M-x menu-bar-mode to make the menu bar appear."))
1631     (customize-mark-as-set 'menu-bar-mode))
1632
1633   menu-bar-mode)
1634
1635 (provide 'menu-bar)
1636
1637 ;;; menu-bar.el ends here