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[bpt/emacs.git] / lisp / menu-bar.el

;;; menu-bar.el --- define a default menu bar

;; Copyright (C) 1993,94,1995,2000,01,02,2003  Free Software Foundation, Inc.

;; Author: RMS
;; Maintainer: FSF
;; Keywords: internal, mouse

;; This file is part of GNU Emacs.

;; GNU Emacs is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.

;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;; GNU General Public License for more details.

;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs; see the file COPYING.  If not, write to the
;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.

;; Avishai Yacobi suggested some menu rearrangements.

;;; Commentary:

;;; Code:

;;; User options:

(defcustom buffers-menu-max-size 10
  "*Maximum number of entries which may appear on the Buffers menu.
If this is 10, then only the ten most-recently-selected buffers are shown.
If this is nil, then all buffers are shown.
A large number or nil slows down menu responsiveness."
  :type '(choice integer
		 (const :tag "All" nil))
  :group 'mouse)

;; Don't clobber an existing menu-bar keymap, to preserve any menu-bar key
;; definitions made in loaddefs.el.
(or (lookup-key global-map [menu-bar])
    (define-key global-map [menu-bar] (make-sparse-keymap "menu-bar")))
(defvar menu-bar-help-menu (make-sparse-keymap "Help"))

;; Force Help item to come last, after the major mode's own items.
;; The symbol used to be called `help', but that gets confused with the
;; help key.
(setq menu-bar-final-items '(help-menu))

(define-key global-map [menu-bar help-menu] (cons "Help" menu-bar-help-menu))
(defvar menu-bar-tools-menu (make-sparse-keymap "Tools"))
(define-key global-map [menu-bar tools] (cons "Tools" menu-bar-tools-menu))
;; This definition is just to show what this looks like.
;; It gets overridden below when menu-bar-update-buffers is called.
(define-key global-map [menu-bar buffer]
  (cons "Buffers" (make-sparse-keymap "Buffers")))
(defvar menu-bar-options-menu (make-sparse-keymap "Options"))
(define-key global-map [menu-bar options]
  (cons "Options" menu-bar-options-menu))
(defvar menu-bar-edit-menu (make-sparse-keymap "Edit"))
(define-key global-map [menu-bar edit] (cons "Edit" menu-bar-edit-menu))
(defvar menu-bar-files-menu (make-sparse-keymap "File"))
(define-key global-map [menu-bar files] (cons "File" menu-bar-files-menu))

;; This alias is for compatibility with 19.28 and before.
(defvar menu-bar-file-menu menu-bar-files-menu)

;; This is referenced by some code below; it is defined in uniquify.el
(defvar uniquify-buffer-name-style)

\f
;; The "File" menu items
(define-key menu-bar-files-menu [exit-emacs]
  '(menu-item "Exit Emacs" save-buffers-kill-emacs
	      :help "Save unsaved buffers, then exit"))

(define-key menu-bar-files-menu [separator-exit]
  '("--"))

;; Don't use delete-frame as event name because that is a special
;; event.
(define-key menu-bar-files-menu [delete-this-frame]
  '(menu-item "Delete Frame" delete-frame
	      :visible (fboundp 'delete-frame)
	      :enable (delete-frame-enabled-p)
	      :help "Delete currently selected frame"))
(define-key menu-bar-files-menu [make-frame-on-display]
  '(menu-item "New Frame on Display..." make-frame-on-display
	      :visible (fboundp 'make-frame-on-display)
	      :help "Open a new frame on another display"))
(define-key menu-bar-files-menu [make-frame]
  '(menu-item "New Frame" make-frame-command
	      :visible (fboundp 'make-frame-command)
	      :help "Open a new frame"))

(define-key menu-bar-files-menu [one-window]
  '(menu-item "Unsplit Windows" delete-other-windows
	      :enable (not (one-window-p t nil))
	      :help "Make selected window fill its frame"))

(define-key menu-bar-files-menu [split-window]
  '(menu-item "Split Window" split-window-vertically
	      :help "Split selected window in two"))

(define-key menu-bar-files-menu [separator-window]
  '(menu-item "--"))

(define-key menu-bar-files-menu [ps-print-region]
  '(menu-item "Postscript Print Region (B+W)" ps-print-region
	      :enable mark-active
	      :help "Pretty-print marked region in black and white to PostScript printer"))
(define-key menu-bar-files-menu [ps-print-buffer]
  '(menu-item "Postscript Print Buffer (B+W)" ps-print-buffer
	      :help "Pretty-print current buffer in black and white to PostScript printer"))
(define-key menu-bar-files-menu [ps-print-region-faces]
  '(menu-item "Postscript Print Region" ps-print-region-with-faces
	      :enable mark-active
	      :help "Pretty-print marked region to PostScript printer"))
(define-key menu-bar-files-menu [ps-print-buffer-faces]
  '(menu-item "Postscript Print Buffer" ps-print-buffer-with-faces
	      :help "Pretty-print current buffer to PostScript printer"))
(define-key menu-bar-files-menu [print-region]
  '(menu-item "Print Region" print-region
	      :enable mark-active
	      :help "Print region between mark and current position"))
(define-key menu-bar-files-menu [print-buffer]
  '(menu-item "Print Buffer" print-buffer
	      :help "Print current buffer with page headings"))

(define-key menu-bar-files-menu [separator-print]
  '(menu-item "--"))

(define-key menu-bar-files-menu [recover-session]
  '(menu-item "Recover Crashed Session..." recover-session
	      :enable (and auto-save-list-file-prefix
			   (file-directory-p
                            (file-name-directory auto-save-list-file-prefix))
                           (directory-files
			    (file-name-directory auto-save-list-file-prefix)
			    nil
			    (concat "\\`"
				    (regexp-quote
				     (file-name-nondirectory
				      auto-save-list-file-prefix)))
			    t))
	      :help "Recover edits from a crashed session"))
(define-key menu-bar-files-menu [revert-buffer]
  '(menu-item "Revert Buffer" revert-buffer
	      :enable (or revert-buffer-function
			  revert-buffer-insert-file-contents-function
			  (and buffer-file-number
			       (or (buffer-modified-p)
				   (not (verify-visited-file-modtime
					 (current-buffer))))))
	      :help "Re-read current buffer from its file"))
(define-key menu-bar-files-menu [write-file]
  '(menu-item "Save Buffer As..." write-file
	      :enable (not (window-minibuffer-p
			    (frame-selected-window menu-updating-frame)))
	      :help "Write current buffer to another file"))
(define-key menu-bar-files-menu [save-buffer]
  '(menu-item "Save (current buffer)" save-buffer
	      :enable (and (buffer-modified-p)
			   (buffer-file-name)
			   (not (window-minibuffer-p
				 (frame-selected-window menu-updating-frame))))
	      :help "Save current buffer to its file"))

(define-key menu-bar-files-menu [separator-save]
  '(menu-item "--"))

(define-key menu-bar-files-menu [kill-buffer]
  '(menu-item "Close (current buffer)" kill-this-buffer
	      :enable (kill-this-buffer-enabled-p)
	      :help "Discard current buffer"))
(define-key menu-bar-files-menu [insert-file]
  '(menu-item "Insert File..." insert-file
	      :enable (not (window-minibuffer-p
			    (frame-selected-window menu-updating-frame)))
	      :help "Insert another file into current buffer"))
(define-key menu-bar-files-menu [dired]
  '(menu-item "Open Directory..." dired
	      :help "Read a directory, operate on its files"))
(define-key menu-bar-files-menu [open-file]
  '(menu-item "Open File..." find-file
	      :enable (not (window-minibuffer-p
			    (frame-selected-window menu-updating-frame)))
	      :help "Read a file into an Emacs buffer"))

\f
;; The "Edit" menu items

;; The "Edit->Search" submenu
(defvar menu-bar-last-search-type nil
  "Type of last non-incremental search command called from the menu.")

(defun nonincremental-repeat-search-forward ()
  "Search forward for the previous search string or regexp."
  (interactive)
  (cond
   ((and (eq menu-bar-last-search-type 'string)
	 search-ring)
    (search-forward (car search-ring)))
   ((and (eq menu-bar-last-search-type 'regexp)
	 regexp-search-ring)
    (re-search-forward (car regexp-search-ring)))
   (t
    (error "No previous search"))))

(defun nonincremental-repeat-search-backward ()
  "Search backward for the previous search string or regexp."
  (interactive)
  (cond
   ((and (eq menu-bar-last-search-type 'string)
	 search-ring)
    (search-backward (car search-ring)))
   ((and (eq menu-bar-last-search-type 'regexp)
	 regexp-search-ring)
    (re-search-backward (car regexp-search-ring)))
   (t
    (error "No previous search"))))

(defun nonincremental-search-forward (string)
  "Read a string and search for it nonincrementally."
  (interactive "sSearch for string: ")
  (setq menu-bar-last-search-type 'string)
  (if (equal string "")
      (search-forward (car search-ring))
    (isearch-update-ring string nil)
    (search-forward string)))

(defun nonincremental-search-backward (string)
  "Read a string and search backward for it nonincrementally."
  (interactive "sSearch for string: ")
  (setq menu-bar-last-search-type 'string)
  (if (equal string "")
      (search-backward (car search-ring))
    (isearch-update-ring string nil)
    (search-backward string)))

(defun nonincremental-re-search-forward (string)
  "Read a regular expression and search for it nonincrementally."
  (interactive "sSearch for regexp: ")
  (setq menu-bar-last-search-type 'regexp)
  (if (equal string "")
      (re-search-forward (car regexp-search-ring))
    (isearch-update-ring string t)
    (re-search-forward string)))

(defun nonincremental-re-search-backward (string)
  "Read a regular expression and search backward for it nonincrementally."
  (interactive "sSearch for regexp: ")
  (setq menu-bar-last-search-type 'regexp)
  (if (equal string "")
      (re-search-backward (car regexp-search-ring))
    (isearch-update-ring string t)
    (re-search-backward string)))

(defvar menu-bar-search-menu (make-sparse-keymap "Search"))

;; The Edit->Search->Incremental Search menu
(defvar menu-bar-i-search-menu
  (make-sparse-keymap "Incremental Search"))

(define-key menu-bar-i-search-menu [isearch-backward-regexp]
  '(menu-item "Backward Regexp..." isearch-backward-regexp
	      :help "Search backwards for a regular expression as you type it"))
(define-key menu-bar-i-search-menu [isearch-forward-regexp]
  '(menu-item "Forward Regexp..." isearch-forward-regexp
	      :help "Search forward for a regular expression as you type it"))
(define-key menu-bar-i-search-menu [isearch-backward]
  '(menu-item "Backward String..." isearch-backward
	      :help "Search backwards for a string as you type it"))
(define-key menu-bar-i-search-menu [isearch-forward]
  '(menu-item "Forward String..." isearch-forward
	      :help "Search forward for a string as you type it"))


(define-key menu-bar-search-menu [i-search]
  (list 'menu-item "Incremental Search" menu-bar-i-search-menu
	      :help "Incremental Search finds partial matches while you type the search string.\nIt is most convenient from the keyboard.  Try it!"))
(define-key menu-bar-search-menu [separator-tag-isearch]
  '(menu-item "--"))

(define-key menu-bar-search-menu [tags-continue]
  '(menu-item "Continue Tags Search" tags-loop-continue
	      :help "Continue last tags search operation"))
(define-key menu-bar-search-menu [tags-srch]
  '(menu-item "Search tagged files" tags-search
	      :help "Search for a regexp in all tagged files"))
(define-key menu-bar-search-menu [separator-tag-search]
  '(menu-item "--"))

(define-key menu-bar-search-menu [repeat-search-back]
  '(menu-item "Repeat Backwards" nonincremental-repeat-search-backward
	      :enable (or (and (eq menu-bar-last-search-type 'string)
			       search-ring)
			  (and (eq menu-bar-last-search-type 'regexp)
			       regexp-search-ring))
	      :help "Repeat last search backwards"))
(define-key menu-bar-search-menu [repeat-search-fwd]
  '(menu-item "Repeat Forward" nonincremental-repeat-search-forward
	      :enable (or (and (eq menu-bar-last-search-type 'string)
			       search-ring)
			  (and (eq menu-bar-last-search-type 'regexp)
			       regexp-search-ring))
	      :help "Repeat last search forward"))
(define-key menu-bar-search-menu [separator-repeat-search]
  '(menu-item "--"))

(define-key menu-bar-search-menu [re-search-backward]
  '(menu-item "Regexp Backwards..." nonincremental-re-search-backward
	      :help "Search backwards for a regular expression"))
(define-key menu-bar-search-menu [re-search-forward]
  '(menu-item "Regexp Forward..." nonincremental-re-search-forward
	      :help "Search forward for a regular expression"))

(define-key menu-bar-search-menu [search-backward]
  '(menu-item "String Backwards..." nonincremental-search-backward
	      :help "Search backwards for a string"))
(define-key menu-bar-search-menu [search-forward]
  '(menu-item "String Forward..." nonincremental-search-forward
	      :help "Search forward for a string"))

;; The Edit->Replace submenu

(defvar menu-bar-replace-menu (make-sparse-keymap "Replace"))

(define-key menu-bar-replace-menu [tags-repl-continue]
  '(menu-item "Continue Replace" tags-loop-continue
	      :help "Continue last tags replace operation"))
(define-key menu-bar-replace-menu [tags-repl]
  '(menu-item "Replace in tagged files" tags-query-replace
	      :help "Interactively replace a regexp in all tagged files"))
(define-key menu-bar-replace-menu [separator-replace-tags]
  '(menu-item "--"))

(define-key menu-bar-replace-menu [query-replace-regexp]
  '(menu-item "Replace Regexp..." query-replace-regexp
	      :enable (not buffer-read-only)
	      :help "Replace regular expression interactively, ask about each occurrence"))
(define-key menu-bar-replace-menu [query-replace]
  '(menu-item "Replace String..." query-replace
	      :enable (not buffer-read-only)
	      :help "Replace string interactively, ask about each occurrence"))

;;; Assemble the top-level Edit menu items.
(define-key menu-bar-edit-menu [props]
  '(menu-item "Text Properties" facemenu-menu
	      :help "Change properties of text in region"))

(define-key menu-bar-edit-menu [fill]
  '(menu-item "Fill" fill-region
	      :enable (and mark-active (not buffer-read-only))
	      :help
	      "Fill text in region to fit between left and right margin"))

(define-key menu-bar-edit-menu [separator-bookmark]
  '(menu-item "--"))

(define-key menu-bar-edit-menu [bookmark]
  '(menu-item "Bookmarks" menu-bar-bookmark-map
	      :help "Record positions and jump between them"))

(defvar menu-bar-goto-menu (make-sparse-keymap "Go To"))

(define-key menu-bar-goto-menu [set-tags-name]
  '(menu-item "Set Tags File Name" visit-tags-table
	      :help "Tell Tags commands which tag table file to use"))

(define-key menu-bar-goto-menu [separator-tag-file]
  '(menu-item "--"))

(define-key menu-bar-goto-menu [apropos-tags]
  '(menu-item "Tags Apropos" tags-apropos
	      :help "Find function/variables whose names match regexp"))
(define-key menu-bar-goto-menu [next-tag-otherw]
  '(menu-item "Next Tag in Other Window"
	      menu-bar-next-tag-other-window
	      :enable (and (boundp 'tags-location-ring)
			   (not (ring-empty-p tags-location-ring)))
	      :help "Find next function/variable matching last tag name in another window"))

(defun menu-bar-next-tag-other-window ()
  "Find the next definition of the tag already specified."
  (interactive)
  (find-tag-other-window nil t))

(defun menu-bar-next-tag ()
  "Find the next definition of the tag already specified."
  (interactive)
  (find-tag nil t))

(define-key menu-bar-goto-menu [next-tag]
  '(menu-item "Find Next Tag"
	      menu-bar-next-tag
	      :enable (and (boundp 'tags-location-ring)
			   (not (ring-empty-p tags-location-ring)))
	      :help "Find next function/variable matching last tag name"))
(define-key menu-bar-goto-menu [find-tag-otherw]
  '(menu-item "Find Tag in Other Window..." find-tag-other-window
	      :help "Find function/variable definition in another window"))
(define-key menu-bar-goto-menu [find-tag]
  '(menu-item "Find Tag..." find-tag
	      :help "Find definition of function or variable"))

(define-key menu-bar-goto-menu [separator-tags]
  '(menu-item "--"))

(define-key menu-bar-goto-menu [end-of-buf]
  '(menu-item "Goto End of Buffer" end-of-buffer))
(define-key menu-bar-goto-menu [beg-of-buf]
  '(menu-item "Goto Beginning of Buffer" beginning-of-buffer))
(define-key menu-bar-goto-menu [go-to-pos]
  '(menu-item "Goto Buffer Position..." goto-char
	      :help "Read a number N and go to buffer position N"))
(define-key menu-bar-goto-menu [go-to-line]
  '(menu-item "Goto Line..." goto-line
	      :help "Read a line number and go to that line"))

(define-key menu-bar-edit-menu [goto]
  (list 'menu-item "Go To" menu-bar-goto-menu))

(define-key menu-bar-edit-menu [replace]
  (list 'menu-item "Replace" menu-bar-replace-menu))

(define-key menu-bar-edit-menu [search]
  (list 'menu-item "Search" menu-bar-search-menu))

(define-key menu-bar-edit-menu [separator-search]
  '(menu-item "--"))

(define-key menu-bar-edit-menu [mark-whole-buffer]
  '(menu-item "Select All" mark-whole-buffer
	      :help "Mark the whole buffer for a subsequent cut/copy."))
(define-key menu-bar-edit-menu [clear]
  '(menu-item "Clear" delete-region
	      :enable (and mark-active
			   (not buffer-read-only)
			   (not (mouse-region-match)))
	      :help
	      "Delete the text in region between mark and current position"))
(defvar yank-menu (cons "Select Yank" nil))
(fset 'yank-menu (cons 'keymap yank-menu))
(define-key menu-bar-edit-menu [select-paste]
  '(menu-item "Select and Paste" yank-menu
	      :enable (and (cdr yank-menu) (not buffer-read-only))
	      :help "Paste (yank) text cut or copied earlier"))
(define-key menu-bar-edit-menu [paste]
  '(menu-item "Paste" yank
	      :enable (and
		       ;; Emacs compiled --without-x doesn't have
		       ;; x-selection-exists-p.
		       (fboundp 'x-selection-exists-p)
		       (x-selection-exists-p) (not buffer-read-only))
	      :help "Paste (yank) text most recently cut/copied"))
(define-key menu-bar-edit-menu [copy]
  '(menu-item "Copy" menu-bar-kill-ring-save
	      :enable mark-active
	      :help "Copy text in region between mark and current position"
	      :keys "\\[kill-ring-save]"))
(define-key menu-bar-edit-menu [cut]
  '(menu-item "Cut" kill-region
	      :enable (and mark-active (not buffer-read-only))
	      :help
	      "Cut (kill) text in region between mark and current position"))
(define-key menu-bar-edit-menu [undo]
  '(menu-item "Undo" undo
	      :enable (and (not buffer-read-only)
			   (not (eq t buffer-undo-list))
			   (if (eq last-command 'undo)
			       pending-undo-list
			     (consp buffer-undo-list)))
	      :help "Undo last operation"))


(defun menu-bar-kill-ring-save (beg end)
  (interactive "r")
  (if (mouse-region-match)
      (message "Selecting a region with the mouse does `copy' automatically")
    (kill-ring-save beg end)))

;; These are alternative definitions for the cut, paste and copy
;; menu items.  Use them if your system expects these to use the clipboard.

(put 'clipboard-kill-region 'menu-enable 'mark-active)
(put 'clipboard-kill-ring-save 'menu-enable 'mark-active)
(put 'clipboard-yank 'menu-enable
     '(or (and (fboundp 'x-selection-exists-p) (x-selection-exists-p))
	  (x-selection-exists-p 'CLIPBOARD)))

(defun clipboard-yank ()
  "Insert the clipboard contents, or the last stretch of killed text."
  (interactive)
  (let ((x-select-enable-clipboard t))
    (yank)))

(defun clipboard-kill-ring-save (beg end)
  "Copy region to kill ring, and save in the X clipboard."
  (interactive "r")
  (let ((x-select-enable-clipboard t))
    (kill-ring-save beg end)))

(defun clipboard-kill-region (beg end)
  "Kill the region, and save it in the X clipboard."
  (interactive "r")
  (let ((x-select-enable-clipboard t))
    (kill-region beg end)))

(defun menu-bar-enable-clipboard ()
  "Make CUT, PASTE and COPY (keys and menu bar items) use the clipboard.
Do the same for the keys of the same name."
  (interactive)
  ;; We can't use constant list structure here because it becomes pure,
  ;; and because it gets modified with cache data.
  (define-key menu-bar-edit-menu [paste]
    (cons "Paste" (cons "Paste text from clipboard" 'clipboard-yank)))
  (define-key menu-bar-edit-menu [copy]
    (cons "Copy" (cons "Copy text in region to the clipboard"
		       'clipboard-kill-ring-save)))
  (define-key menu-bar-edit-menu [cut]
    (cons "Cut" (cons "Delete text in region and copy it to the clipboard"
		      'clipboard-kill-region)))

  ;; These are Sun server keysyms for the Cut, Copy and Paste keys
  ;; (also for XFree86 on Sun keyboard):
  (define-key global-map [f20] 'clipboard-kill-region)
  (define-key global-map [f16] 'clipboard-kill-ring-save)
  (define-key global-map [f18] 'clipboard-yank)
  ;; X11R6 versions:
  (define-key global-map [cut] 'clipboard-kill-region)
  (define-key global-map [copy] 'clipboard-kill-ring-save)
  (define-key global-map [paste] 'clipboard-yank))
\f
;; The "Options" menu items

(defvar menu-bar-custom-menu (make-sparse-keymap "Customize"))

(define-key menu-bar-custom-menu [customize-apropos-groups]
  '(menu-item "Groups Matching Regexp..." customize-apropos-groups
	      :help "Browse groups whose names match regexp"))
(define-key menu-bar-custom-menu [customize-apropos-faces]
  '(menu-item "Faces Matching Regexp..." customize-apropos-faces
	      :help "Browse faces whose names match regexp"))
(define-key menu-bar-custom-menu [customize-apropos-options]
  '(menu-item "Options Matching Regexp..." customize-apropos-options
	      :help "Browse options whose names match regexp"))
(define-key menu-bar-custom-menu [customize-apropos]
  '(menu-item "Settings Matching Regexp..." customize-apropos
	      :help "Browse customizable settings whose names match regexp"))
(define-key menu-bar-custom-menu [separator-1]
  '("--"))
(define-key menu-bar-custom-menu [customize-group]
  '(menu-item "Specific Group..." customize-group
	      :help "Customize settings of specific group"))
(define-key menu-bar-custom-menu [customize-face]
  '(menu-item "Specific Face..." customize-face
	      :help "Customize attributes of specific face"))
(define-key menu-bar-custom-menu [customize-option]
  '(menu-item "Specific Option..." customize-option
	      :help "Customize value of specific option"))
(define-key menu-bar-custom-menu [separator-2]
  '("--"))
(define-key menu-bar-custom-menu [customize-changed-options]
  '(menu-item "New Options..." customize-changed-options
	      :help "Options added or changed in recent Emacs versions"))
(define-key menu-bar-custom-menu [customize-saved]
  '(menu-item "Saved Options" customize-saved
	      :help "Customize previously saved options"))
(define-key menu-bar-custom-menu [separator-3]
  '("--"))
(define-key menu-bar-custom-menu [customize-browse]
  '(menu-item "Browse Customization Groups" customize-browse
	      :help "Browse all customization groups"))
(define-key menu-bar-custom-menu [customize]
  '(menu-item "Top-level Customization Group" customize
	      :help "The master group called `Emacs'"))

;(defvar menu-bar-preferences-menu (make-sparse-keymap "Preferences"))

(defmacro menu-bar-make-mm-toggle (fname doc help &optional props)
  "Make a menu-item for a global minor mode toggle.
FNAME is the minor mode's name (variable and function).
DOC is the text to use the menu entry.
HELP is the text to use for the tooltip.
PROPS are additional properties."
  `'(menu-item ,doc ,fname
     ,@(if props props)
     :help ,help
     :button (:toggle . (and (default-boundp ',fname)
			     (default-value ',fname)))))

(defmacro menu-bar-make-toggle (name variable doc message help &rest body)
  `(progn
     (defun ,name ()
       ,(concat "Toggle whether to " (downcase (substring help 0 1))
		(substring help 1) ".")
       (interactive)
       (if ,(if body `(progn . ,body)
	      `(progn
		 (custom-load-symbol ',variable)
		 (let ((set (or (get ',variable 'custom-set) 'set-default))
		       (get (or (get ',variable 'custom-get) 'default-value)))
		   (funcall set ',variable (not (funcall get ',variable))))))
	   (message ,message "enabled")
  	 (message ,message "disabled"))
       ;; The function `customize-mark-as-set' must only be called when
       ;; a variable is set interactively, as the purpose is to mark it as
       ;; a candidate for "Save Options", and we do not want to save options
       ;; the user have already set explicitly in his init file.
       (if (interactive-p) (customize-mark-as-set ',variable)))
     '(menu-item ,doc ,name
		 :help ,help
                 :button (:toggle . (and (default-boundp ',variable)
					 (default-value ',variable))))))

;;; Assemble all the top-level items of the "Options" menu
(define-key menu-bar-options-menu [customize]
  (list 'menu-item "Customize Emacs" menu-bar-custom-menu
	:help "Full customization of every Emacs feature"))

(defun menu-bar-options-save ()
  "Save current values of Options menu items using Custom."
  (interactive)
  (let ((need-save nil))
    ;; These are set with `customize-set-variable'.
    (dolist (elt '(line-number-mode column-number-mode scroll-bar-mode
		   debug-on-quit debug-on-error menu-bar-mode tool-bar-mode
		   save-place uniquify-buffer-name-style fringe-mode
		   case-fold-search cua-mode show-paren-mode
		   transient-mark-mode global-font-lock-mode
		   display-time-mode auto-compression-mode
		   current-language-environment default-input-method
		   ;; Saving `text-mode-hook' is somewhat questionable,
		   ;; as we might get more than we bargain for, if
		   ;; other code may has added hooks as well.
		   ;; Nonetheless, not saving it would like be confuse
		   ;; more often.
		   ;; -- Per Abrahamsen <abraham@dina.kvl.dk> 2002-02-11.
		   text-mode-hook))
      (and (get elt 'customized-value)
	   (customize-mark-to-save elt)
	   (setq need-save t)))
    ;; Save if we changed anything.
    (when need-save
      (custom-save-all))))

(define-key menu-bar-options-menu [save]
  '(menu-item "Save Options" menu-bar-options-save
	      :help "Save options set from the menu above"))

(define-key menu-bar-options-menu [custom-separator]
  '("--"))

(define-key menu-bar-options-menu [mouse-set-font]
  '(menu-item "Set Font/Fontset" mouse-set-font
	       :visible (display-multi-font-p)
	       :help "Select a font from list of known fonts/fontsets"))

;; The "Show/Hide" submenu of menu "Options"

(defvar menu-bar-showhide-menu (make-sparse-keymap "Show/Hide"))

(define-key menu-bar-showhide-menu [column-number-mode]
  (menu-bar-make-mm-toggle column-number-mode
			   "Column Numbers"
			   "Show the current column number in the mode line"))

(define-key menu-bar-showhide-menu [line-number-mode]
  (menu-bar-make-mm-toggle line-number-mode
			   "Line Numbers"
			   "Show the current line number in the mode line"))

(define-key menu-bar-showhide-menu [linecolumn-separator]
  '("--"))

(defun showhide-date-time ()
  "Toggle whether to show date and time in the mode-line."
  (interactive)
  (if (display-time-mode)
      (message "Display-time mode enabled.")
    (message "Display-time mode disabled."))
  (customize-mark-as-set 'display-time-mode))

(define-key menu-bar-showhide-menu [showhide-date-time]
  '(menu-item "Date, Time and Mail" showhide-date-time
	      :help "Display date, time, mail status in mode line"
	      :button (:toggle . display-time-mode)))

(define-key menu-bar-showhide-menu [datetime-separator]
  '("--"))

(define-key menu-bar-showhide-menu [showhide-speedbar]
  '(menu-item "Speedbar" speedbar-frame-mode
	      :help "Display a Speedbar quick-navigation frame"
	      :button (:toggle
		       . (and (boundp 'speedbar-frame)
			      (frame-live-p (symbol-value 'speedbar-frame))
			      (frame-visible-p
			       (symbol-value 'speedbar-frame))))))

(defvar menu-bar-showhide-fringe-menu (make-sparse-keymap "Fringe"))

(defun menu-bar-showhide-fringe-menu-customize ()
  "Show customization buffer for `fringe-mode'."
  (interactive)
  (customize-variable 'fringe-mode))

(define-key menu-bar-showhide-fringe-menu [customize]
  '(menu-item "Customize" menu-bar-showhide-fringe-menu-customize
	      :help "Detailed customization of fringe"
	      :visible (display-graphic-p)))

(defun menu-bar-showhide-fringe-menu-customize-reset ()
  "Reset the fringe mode: display fringes on both sides of a window."
  (interactive)
  (customize-set-variable 'fringe-mode nil))

;; The real definition is in fringe.el.
;; This is to prevent errors in the :radio conditions below.
(setq fringe-mode nil)

(define-key menu-bar-showhide-fringe-menu [default]
  '(menu-item "Default" menu-bar-showhide-fringe-menu-customize-reset
	      :help "Default width fringe on both left and right side"
	      :visible (display-graphic-p)
	      :button (:radio . (eq fringe-mode nil))))

(defun menu-bar-showhide-fringe-menu-customize-left ()
  "Display fringes only on the left of each window."
  (interactive)
  (require 'fringe)
  (customize-set-variable 'fringe-mode '(nil . 0)))

(define-key menu-bar-showhide-fringe-menu [left]
  '(menu-item "On the Left" menu-bar-showhide-fringe-menu-customize-left
	      :help "Fringe only on the left side"
	      :visible (display-graphic-p)
	      :button (:radio . (equal fringe-mode '(nil . 0)))))

(defun menu-bar-showhide-fringe-menu-customize-right ()
  "Display fringes only on the right of each window."
  (interactive)
  (require 'fringe)
  (customize-set-variable 'fringe-mode '(0 . nil)))

(define-key menu-bar-showhide-fringe-menu [right]
  '(menu-item "On the Right" menu-bar-showhide-fringe-menu-customize-right
	      :help "Fringe only on the right side"
	      :visible (display-graphic-p)
	      :button (:radio . (equal fringe-mode '(0 . nil)))))

(defun menu-bar-showhide-fringe-menu-customize-disable ()
  "Do not display window fringes."
  (interactive)
  (require 'fringe)
  (customize-set-variable 'fringe-mode 0))

(define-key menu-bar-showhide-fringe-menu [none]
  '(menu-item "None" menu-bar-showhide-fringe-menu-customize-disable
	      :help "Turn off fringe"
	      :visible (display-graphic-p)
	      :button (:radio . (eq fringe-mode 0))))

(define-key menu-bar-showhide-menu [showhide-fringe]
  (list 'menu-item "Fringe" menu-bar-showhide-fringe-menu
	:visible `(display-graphic-p)
	:help "Select fringe mode"))

(defvar menu-bar-showhide-scroll-bar-menu (make-sparse-keymap "Scroll-bar"))

(define-key menu-bar-showhide-scroll-bar-menu [right]
  '(menu-item "On the Right"
	      menu-bar-right-scroll-bar
	      :help "Scroll-bar on the right side"
	      :visible (display-graphic-p)
	      :button (:radio . (eq (cdr (assq 'vertical-scroll-bars
					       (frame-parameters))) 'right))))
(defun menu-bar-right-scroll-bar ()
  "Display scroll bars on the right of each window."
  (interactive)
  (customize-set-variable 'scroll-bar-mode 'right))

(define-key menu-bar-showhide-scroll-bar-menu [left]
  '(menu-item "On the Left"
	      menu-bar-left-scroll-bar
	      :help "Scroll-bar on the left side"
	      :visible (display-graphic-p)
	      :button (:radio . (eq (cdr (assq 'vertical-scroll-bars
					       (frame-parameters))) 'left))))

(defun menu-bar-left-scroll-bar ()
  "Display scroll bars on the left of each window."
  (interactive)
  (customize-set-variable 'scroll-bar-mode 'left))

(define-key menu-bar-showhide-scroll-bar-menu [none]
  '(menu-item "None"
	      menu-bar-no-scroll-bar
	      :help "Turn off scroll-bar"
	      :visible (display-graphic-p)
	      :button (:radio . (eq (cdr (assq 'vertical-scroll-bars
					       (frame-parameters))) nil))))

(defun menu-bar-no-scroll-bar ()
  "Turn off scroll bars."
  (interactive)
  (customize-set-variable 'scroll-bar-mode nil))

(define-key menu-bar-showhide-menu [showhide-scroll-bar]
  (list 'menu-item "Scroll-bar" menu-bar-showhide-scroll-bar-menu
	:visible `(display-graphic-p)
	:help "Select scroll-bar mode"))

(define-key menu-bar-showhide-menu [menu-bar-mode]
  '(menu-item "Menu-bar" menu-bar-mode
	      :help "Toggle menu-bar on/off"
	      :button (:toggle . menu-bar-mode)))

(define-key menu-bar-showhide-menu [showhide-tool-bar]
  (list 'menu-item "Tool-bar" 'tool-bar-mode
	:help "Turn tool-bar on/off"
	:visible `(display-graphic-p)
	:button `(:toggle . tool-bar-mode)))

(define-key menu-bar-options-menu [showhide]
  (list 'menu-item "Show/Hide" menu-bar-showhide-menu
	:help "Toggle on/off various display features"))

(define-key menu-bar-options-menu [showhide-separator]
  '("--"))

(define-key menu-bar-options-menu [mule]
  ;; It is better not to use backquote here,
  ;; because that makes a bootstrapping problem
  ;; if you need to recompile all the Lisp files using interpreted code.
  (list 'menu-item "Mule (Multilingual Environment)" mule-menu-keymap
;; Most of the MULE menu actually does make sense in unibyte mode,
;; e.g. language selection.
;;;	':visible 'default-enable-multibyte-characters
	':help "Default language, encodings, input method"))
;(setq menu-bar-final-items (cons 'mule menu-bar-final-items))
;(define-key menu-bar-options-menu [preferences]
;  (list 'menu-item "Preferences" menu-bar-preferences-menu
;	:help "Toggle important global options"))

(define-key menu-bar-options-menu [mule-separator]
  '("--"))

(define-key menu-bar-options-menu [debug-on-quit]
  (menu-bar-make-toggle toggle-debug-on-quit debug-on-quit
			"Enter Debugger on Quit/C-g" "Debug on Quit %s"
			"Enter Lisp debugger when C-g is pressed"))
(define-key menu-bar-options-menu [debug-on-error]
  (menu-bar-make-toggle toggle-debug-on-error debug-on-error
			"Enter Debugger on Error" "Debug on Error %s"
			"Enter Lisp debugger when an error is signaled"))
(define-key menu-bar-options-menu [debugger-separator]
  '("--"))
(define-key menu-bar-options-menu [toggle-auto-compression]
  '(menu-item "Automatic File De/compression"
	      auto-compression-mode
	      :help "Transparently decompress compressed files"
	      :button (:toggle . (rassq 'jka-compr-handler
					file-name-handler-alist))))

(define-key menu-bar-options-menu [save-place]
  (menu-bar-make-toggle toggle-save-place-globally save-place
			"Save Place in Files between Sessions"
			"Saving place in files %s"
			"Visit files of previous session when restarting Emacs"
                        (require 'saveplace)
                        ;; Do it by name, to avoid a free-variable
                        ;; warning during byte compilation.
                        (set-default
                         'save-place (not (symbol-value 'save-place)))))

(define-key menu-bar-options-menu [uniquify]
  (menu-bar-make-toggle toggle-uniquify-buffer-names uniquify-buffer-name-style
			"Use Directory Names in Buffer Names"
			"Directory name in buffer names (uniquify) %s"
			"Uniquify buffer names by adding parent directory names"
			(require 'uniquify)
			(setq uniquify-buffer-name-style
			      (if (not uniquify-buffer-name-style)
				  'forward))))

(define-key menu-bar-options-menu [edit-options-separator]
  '("--"))
(define-key menu-bar-options-menu [cua-mode]
  (menu-bar-make-mm-toggle cua-mode
			   "CUA-style cut and paste"
			   "Use C-z/C-x/C-c/C-v keys for undo/cut/copy/paste"))

(define-key menu-bar-options-menu [case-fold-search]
  (menu-bar-make-toggle toggle-case-fold-search case-fold-search
			"Case-Insensitive Search"
			"Case-Insensitive Search %s"
			"Ignore letter-case in search"))

(defun menu-bar-text-mode-auto-fill ()
  (interactive)
  (toggle-text-mode-auto-fill)
  ;; This is somewhat questionable, as `text-mode-hook'
  ;; might have changed outside customize.
  ;; -- Per Abrahamsen <abraham@dina.kvl.dk> 2002-02-11.
  (customize-mark-as-set 'text-mode-hook))

(define-key menu-bar-options-menu [auto-fill-mode]
  '(menu-item "Word Wrap in Text Modes"
              menu-bar-text-mode-auto-fill
	      :help "Automatically fill text between left and right margins (Auto Fill)"
              :button (:toggle . (if (listp text-mode-hook)
				     (member 'turn-on-auto-fill text-mode-hook)
				   (eq 'turn-on-auto-fill text-mode-hook)))))
(define-key menu-bar-options-menu [truncate-lines]
  '(menu-item "Truncate Long Lines in this Buffer"
	      toggle-truncate-lines
	      :help "Truncate long lines on the screen"
	      :button (:toggle . truncate-lines)))

(define-key menu-bar-options-menu [highlight-separator]
  '("--"))
(define-key menu-bar-options-menu [highlight-paren-mode]
  (menu-bar-make-mm-toggle show-paren-mode
			   "Paren Match Highlighting"
			   "Highlight matching/mismatched parentheses at cursor (Show Paren mode)"))
(define-key menu-bar-options-menu [transient-mark-mode]
  (menu-bar-make-mm-toggle transient-mark-mode
			   "Active Region Highlighting"
			   "Make text in active region stand out in color (Transient Mark mode)"
			   (:enable (not cua-mode))))
(define-key menu-bar-options-menu [toggle-global-lazy-font-lock-mode]
  (menu-bar-make-mm-toggle global-font-lock-mode
			   "Syntax Highlighting"
			   "Colorize text based on language syntax (Global Font Lock mode)"))

\f
;; The "Tools" menu items

(defun send-mail-item-name ()
  (let* ((known-send-mail-commands '((sendmail-user-agent . "sendmail")
				     (mh-e-user-agent . "MH")
				     (message-user-agent . "Gnus Message")
				     (gnus-user-agent . "Gnus")))
	 (name (assq mail-user-agent known-send-mail-commands)))
    (if name
	(setq name (cdr name))
      (setq name (symbol-name mail-user-agent))
      (if (string-match "\\(.+\\)-user-agent" name)
	  (setq name (match-string 1 name))))
    name))

(defun read-mail-item-name ()
  (let* ((known-rmail-commands '((rmail . "RMAIL")
				 (mh-rmail . "MH")
				 (gnus . "Gnus")))
	 (known (assq read-mail-command known-rmail-commands)))
    (if known (cdr known) (symbol-name read-mail-command))))

(defvar menu-bar-games-menu (make-sparse-keymap "Games"))

(define-key menu-bar-tools-menu [games]
  (list 'menu-item "Games" menu-bar-games-menu))

(define-key menu-bar-tools-menu [separator-games]
  '("--"))

(define-key menu-bar-games-menu [zone]
  '(menu-item "Zone Out"  zone
	      :help "Play tricks with Emacs display when Emacs is idle"))
(define-key menu-bar-games-menu [yow]
  '(menu-item "Random Quotation"  yow
	      :help "Display a random Zippy quotation"))
(define-key menu-bar-games-menu [tetris]
  '(menu-item "Tetris"  tetris))
(define-key menu-bar-games-menu [solitaire]
  '(menu-item "Solitaire"  solitaire))
(define-key menu-bar-games-menu [snake]
  '(menu-item "Snake"  snake
	      :help "Move snake around avoiding collisions"))
(define-key menu-bar-games-menu [mult]
  '(menu-item "Multiplication Puzzle"  mpuz
	      :help "Excercise brain with multiplication"))
(define-key menu-bar-games-menu [life]
  '(menu-item "Life"  life
	      :help "Watch how John Conway's cellular automaton evolves"))
(define-key menu-bar-games-menu [hanoi]
  '(menu-item "Towers of Hanoi" hanoi
	      :help "Watch Towers-of-Hanoi puzzle solved by Emacs"))
(define-key menu-bar-games-menu [gomoku]
  '(menu-item "Gomoku"  gomoku
	      :help "Mark 5 contiguous squares (like tic-tac-toe)"))
(define-key menu-bar-games-menu [black-box]
  '(menu-item "Blackbox"  blackbox
	      :help "Find balls in a black box by shooting rays"))
(define-key menu-bar-games-menu [adventure]
  '(menu-item "Adventure"  dunnet
	      :help "Dunnet, a text Adventure game for Emacs"))
(define-key menu-bar-games-menu [5x5]
  '(menu-item "5x5" 5x5
	      :help "Fill in all the squares on a 5x5 board"))

(define-key menu-bar-tools-menu [simple-calculator]
  '(menu-item "Simple Calculator" calculator
	      :help "Invoke the Emacs built-in quick calculator"))
(define-key menu-bar-tools-menu [calc]
  '(menu-item "Programmable Calculator" calc
	      :help "Invoke the Emacs built-in full scientific calculator"))
(define-key menu-bar-tools-menu [calendar]
  '(menu-item "Display Calendar" calendar))

(define-key menu-bar-tools-menu [separator-net]
  '("--"))

(define-key menu-bar-tools-menu [directory-search]
  '(menu-item "Directory Search" eudc-tools-menu
	      :help "Query directory servers via LDAP, CCSO PH/QI or BBDB"))
(define-key menu-bar-tools-menu [compose-mail]
  (list
   'menu-item `(format "Send Mail (with %s)" (send-mail-item-name))
   'compose-mail
   :visible `(and mail-user-agent (not (eq mail-user-agent 'ignore)))
   :help "Send a mail message"))
(define-key menu-bar-tools-menu [rmail]
  (list
   'menu-item `(format "Read Mail (with %s)" (read-mail-item-name))
   'menu-bar-read-mail
   :visible `(and read-mail-command (not (eq read-mail-command 'ignore)))
   :help "Read your mail and reply to it"))

(defun menu-bar-read-mail ()
  "Read mail using `read-mail-command'."
  (interactive)
  (call-interactively read-mail-command))

(define-key menu-bar-tools-menu [gnus]
  '(menu-item "Read Net News (Gnus)" gnus
	      :help "Read network news groups"))

(define-key menu-bar-tools-menu [separator-vc]
  '("--"))

(defvar vc-menu-map (make-sparse-keymap "Version Control"))
(define-key menu-bar-tools-menu [pcl-cvs]
  '(menu-item "PCL-CVS" cvs-global-menu
    :help "Module-level interface to CVS"))
(define-key menu-bar-tools-menu [vc]
  (list 'menu-item "Version Control" vc-menu-map
	:help "Interface to RCS, CVS, SCCS"))

(define-key menu-bar-tools-menu [separator-compare]
  '("--"))

(define-key menu-bar-tools-menu [ediff-misc]
  '(menu-item "Ediff Miscellanea" menu-bar-ediff-misc-menu
	      :help "Ediff manual, customization, sessions, etc."))
(define-key menu-bar-tools-menu [epatch]
  '(menu-item "Apply Patch" menu-bar-epatch-menu))
(define-key menu-bar-tools-menu [ediff-merge]
  '(menu-item "Merge" menu-bar-ediff-merge-menu
	      :help "Merge different revisions of files/directories"))
(define-key menu-bar-tools-menu [compare]
  '(menu-item "Compare (Ediff)" menu-bar-ediff-menu
	      :help "Display differences between files/directories"))


(define-key menu-bar-tools-menu [separator-spell]
  '("--"))

(define-key menu-bar-tools-menu [spell]
  '(menu-item "Spell Checking" ispell-menu-map))

(define-key menu-bar-tools-menu [separator-prog]
  '("--"))

(define-key menu-bar-tools-menu [gdb]
  '(menu-item "Debugger (GDB)..." gdb
	      :help "Debug a program from within Emacs with GDB"))
(define-key menu-bar-tools-menu [shell-on-region]
  '(menu-item "Shell Command on Region..." shell-command-on-region
	      :enable mark-active
	      :help "Pass marked region to a shell command"))
(define-key menu-bar-tools-menu [shell]
  '(menu-item "Shell Command..." shell-command
	      :help "Invoke a shell command and catch its output"))
(define-key menu-bar-tools-menu [compile]
  '(menu-item "Compile..." compile
	      :help "Invoke compiler or Make, view compilation errors"))
(define-key menu-bar-tools-menu [grep]
  '(menu-item "Search Files (with grep)..." grep
	      :help "Search files for strings or regexps (with grep)"))

\f
;; The "Help" menu items

(defvar menu-bar-describe-menu (make-sparse-keymap "Describe"))

(define-key menu-bar-describe-menu [mule-diag]
  '(menu-item "Show All of Mule Status" mule-diag
	      :visible default-enable-multibyte-characters
	      :help "Display multilingual environment settings"))
(define-key menu-bar-describe-menu [describe-coding-system-briefly]
  '(menu-item "Describe Coding System (Briefly)..."
              describe-current-coding-system-briefly
              :visible default-enable-multibyte-characters))
(define-key menu-bar-describe-menu [describe-coding-system]
  '(menu-item "Describe Coding System..." describe-coding-system
	      :visible default-enable-multibyte-characters))
(define-key menu-bar-describe-menu [describe-input-method]
  '(menu-item "Describe Input Method..." describe-input-method
	      :visible default-enable-multibyte-characters
	      :help "Keyboard layout for specific input method"))
(define-key menu-bar-describe-menu [describe-language-environment]
  (list 'menu-item "Describe Language Environment"
	describe-language-environment-map
	:help "Show multilingual settings for a specific language"))

(define-key menu-bar-describe-menu [separator-desc-mule]
  '("--"))

(define-key menu-bar-describe-menu [list-keybindings]
  '(menu-item "List Key Bindings" describe-bindings
	      :help "Display a list of all current keybindings"))
(define-key menu-bar-describe-menu [describe-current-display-table]
  '(menu-item "Describe Display Table" describe-current-display-table
	      :help "Describe the current display table"))
(define-key menu-bar-describe-menu [describe-face]
  '(menu-item "Describe Face..." describe-face
              :help "Display the properties of a face"))
(define-key menu-bar-describe-menu [describe-variable]
  '(menu-item "Describe Variable..." describe-variable
	      :help "Display documentation of variable/option"))
(define-key menu-bar-describe-menu [describe-function]
  '(menu-item "Describe Function..." describe-function
	      :help "Display documentation of function/command"))
(define-key menu-bar-describe-menu [describe-key-1]
  '(menu-item "Describe Key..." describe-key
	      ;; Users typically don't identify keys and menu items...
	      :help "Display documentation of command bound to a \
key (or menu-item)"))
(define-key menu-bar-describe-menu [describe-key]
  '(menu-item "What's This? " describe-key
	      ;; Users typically don't identify keys and menu items...
	      :help "Display documentation of command bound to a \
key (or menu-item)"))
(define-key menu-bar-describe-menu [describe-mode]
  '(menu-item "Describe Buffer Modes" describe-mode
	      :help "Describe this buffer's major and minor mode"))

(defvar menu-bar-apropos-menu (make-sparse-keymap "Apropos"))
(defun menu-bar-read-lispref ()
  "Display the Emacs Lisp Reference manual in Info mode."
  (interactive)
  (info "elisp"))

(defun menu-bar-read-lispintro ()
  "Display the Introduction to Emacs Lisp Programming in Info mode."
  (interactive)
  (info "eintr"))

(defun search-emacs-glossary ()
  "Display the Glossary node of the Emacs manual in Info mode."
  (interactive)
  (info "(emacs)Glossary"))

(defun emacs-index-search (topic)
  "Look up TOPIC in the indices of the Emacs User Manual."
  (interactive "sSubject to look up: ")
  (info "emacs")
  (Info-index topic))

(defun elisp-index-search (topic)
  "Look up TOPIC in the indices of the Emacs Lisp Reference Manual."
  (interactive "sSubject to look up: ")
  (info "elisp")
  (Info-index topic))

(define-key menu-bar-apropos-menu [apropos-documentation]
  '(menu-item "Search Documentation Strings..." apropos-documentation
              :help
	      "Find functions and variables whose doc strings match a regexp"))
(define-key menu-bar-apropos-menu [apropos]
  '(menu-item "Find Any Object by Name..."  apropos
              :help "Find symbols of any kind whose names match a regexp"))
(define-key menu-bar-apropos-menu [apropos-value]
  '(menu-item "Find Options by Value..." apropos-value
              :help "Find variables whose values match a regexp"))
(define-key menu-bar-apropos-menu [apropos-variables]
  '(menu-item "Find Options by Name..." apropos-variable
	      :help "Find variables whose names match a regexp"))
(define-key menu-bar-apropos-menu [apropos-commands]
  '(menu-item "Find Commands by Name..." apropos-command
	      :help "Find commands whose names match a regexp"))
(define-key menu-bar-apropos-menu [sep1]
  '("--"))
(define-key menu-bar-apropos-menu [elisp-index-search]
  '(menu-item "Look Up Subject in ELisp Manual..." elisp-index-search
	      :help "Find description of a subject in Emacs Lisp manual"))
(define-key menu-bar-apropos-menu [emacs-index-search]
  '(menu-item "Look Up Subject in User Manual..." emacs-index-search
	      :help "Find description of a subject in Emacs User manual"))
(define-key menu-bar-apropos-menu [emacs-glossary]
  '(menu-item "Emacs Terminology" search-emacs-glossary
	      :help "Display the Glossary section of the Emacs manual"))

(defvar menu-bar-manuals-menu (make-sparse-keymap "More Manuals"))

(define-key menu-bar-manuals-menu [man]
  '(menu-item "Read Man Page..." manual-entry
	      :help "Man-page docs for external commands and libraries"))
(define-key menu-bar-manuals-menu [sep2]
  '("--"))
(define-key menu-bar-manuals-menu [order-emacs-manuals]
  '(menu-item "Ordering Manuals" view-order-manuals
	      :help "How to order manuals from the Free Software Foundation"))
(define-key menu-bar-manuals-menu [info]
  '(menu-item "All Other Manuals (Info)" Info-directory
	      :help "Read any of the installed manuals"))
(define-key menu-bar-manuals-menu [info-elisp]
  '(menu-item "Emacs Lisp Reference" menu-bar-read-lispref
	      :help "Read the Emacs Lisp Reference manual"))
(define-key menu-bar-manuals-menu [info-elintro]
  '(menu-item "Introduction to Emacs Lisp" menu-bar-read-lispintro
	      :help "Read the Introduction to Emacs Lisp Programming"))
(define-key menu-bar-manuals-menu [sep3]
  '("--"))
(define-key menu-bar-manuals-menu [command]
  '(menu-item "Find Command in Manual" Info-goto-emacs-command-node
	      :help "Display manual section that describes a command"))
(define-key menu-bar-manuals-menu [key]
  '(menu-item "Find Key in Manual" Info-goto-emacs-key-command-node
	      :help "Display manual section that describes a key"))

(define-key menu-bar-help-menu [eliza]
  '(menu-item "Emacs Psychiatrist" doctor
	      :help "Our doctor will help you feel better"))
(define-key menu-bar-help-menu [sep4]
  '("--"))
(define-key menu-bar-help-menu [describe-no-warranty]
  '(menu-item "(Non)Warranty" describe-no-warranty
	      :help "Explain that Emacs has NO WARRANTY"))
(define-key menu-bar-help-menu [describe-copying]
  '(menu-item "Copying Conditions" describe-copying
	      :help "Show the Emacs license (GPL)"))
(define-key menu-bar-help-menu [describe-distribution]
  '(menu-item "Getting New Versions" describe-distribution
	      :help "How to get latest versions of Emacs"))
(define-key menu-bar-help-menu [more]
  '(menu-item "Find Extra Packages"
	      menu-bar-help-extra-packages
	      :help "Where to find some extra packages and possible updates"))
(defun menu-bar-help-extra-packages ()
  "Display help about some additional packages available for Emacs."
  (interactive)
  (let (enable-local-variables)
    (view-file (expand-file-name "MORE.STUFF"
				 data-directory))
    (goto-address)))
(define-key menu-bar-help-menu [about]
  '(menu-item "About Emacs" display-splash-screen
	      :help "Display version number, copyright info, and basic help"))
(define-key menu-bar-help-menu [sep2]
  '("--"))
(define-key menu-bar-help-menu [finder-by-keyword]
  '(menu-item "Find Emacs Packages..." finder-by-keyword
	      :help "Find packages and features by keyword"))
(define-key menu-bar-help-menu [manuals]
  (list 'menu-item "More Manuals" menu-bar-manuals-menu
	:help "Search and browse on-line manuals"))
(define-key menu-bar-help-menu [emacs-manual]
  '(menu-item "Read the Emacs Manual" info-emacs-manual
	      :help "Full documentation of Emacs features"))
(define-key menu-bar-help-menu [describe]
  (list 'menu-item "Describe" menu-bar-describe-menu
	:help "Describe commands, variables, keys"))
(define-key menu-bar-help-menu [apropos]
  (list 'menu-item "Search Documentation" menu-bar-apropos-menu
	:help "Look up terms, find commands, options, etc. (Apropos)"))
(define-key menu-bar-help-menu [sep1]
  '("--"))
(define-key menu-bar-help-menu [report-emacs-bug]
  '(menu-item "Send Bug Report..." report-emacs-bug
	      :help "Send e-mail to Emacs maintainers"))
(define-key menu-bar-help-menu [emacs-problems]
  '(menu-item "Emacs Known Problems" view-emacs-problems))
(define-key menu-bar-help-menu [emacs-news]
  '(menu-item "Emacs News" view-emacs-news
	      :help "New features of this version"))
(define-key menu-bar-help-menu [emacs-faq]
  '(menu-item "Emacs FAQ" view-emacs-FAQ))

(defun help-with-tutorial-spec-language ()
  "Use the Emacs tutorial, specifying which language you want."
  (interactive)
  (help-with-tutorial t))

(define-key menu-bar-help-menu [emacs-tutorial-language-specific]
  '(menu-item "Emacs Tutorial (choose language)..."
	      help-with-tutorial-spec-language
	      :help "Learn how to use Emacs (choose a language)"))
(define-key menu-bar-help-menu [emacs-tutorial]
  '(menu-item "Emacs Tutorial" help-with-tutorial
	      :help "Learn how to use Emacs"))

(defun kill-this-buffer ()	; for the menubar
  "Kill the current buffer."
  (interactive)
  (kill-buffer (current-buffer)))

(defun kill-this-buffer-enabled-p ()
  (let ((count 0)
	(buffers (buffer-list)))
    (while buffers
      (or (string-match "^ " (buffer-name (car buffers)))
	  (setq count (1+ count)))
      (setq buffers (cdr buffers)))
    (and (not (window-minibuffer-p (frame-selected-window menu-updating-frame)))
	 (> count 1))))

(put 'dired 'menu-enable
     '(not (window-minibuffer-p (frame-selected-window menu-updating-frame))))

;; Permit deleting frame if it would leave a visible or iconified frame.
(defun delete-frame-enabled-p ()
  "Return non-nil if `delete-frame' should be enabled in the menu bar."
  (let ((frames (frame-list))
	(count 0))
    (while frames
      (if (frame-visible-p (car frames))
	  (setq count (1+ count)))
      (setq frames (cdr frames)))
    (> count 1)))

(defcustom yank-menu-length 20
  "*Maximum length to display in the yank-menu."
  :type 'integer
  :group 'mouse)

(defun menu-bar-update-yank-menu (string old)
  (let ((front (car (cdr yank-menu)))
	(menu-string (if (<= (length string) yank-menu-length)
			 string
		       (concat
			(substring string 0 (/ yank-menu-length 2))
			"..."
			(substring string (- (/ yank-menu-length 2)))))))
    ;; Don't let the menu string be all dashes
    ;; because that has a special meaning in a menu.
    (if (string-match "\\`-+\\'" menu-string)
	(setq menu-string (concat menu-string " ")))
    ;; If we're supposed to be extending an existing string, and that
    ;; string really is at the front of the menu, then update it in place.
    (if (and old (or (eq old (car front))
		     (string= old (car front))))
	(progn
	  (setcar front string)
	  (setcar (cdr front) menu-string))
      (setcdr yank-menu
	      (cons
	       (cons string (cons menu-string 'menu-bar-select-yank))
	       (cdr yank-menu)))))
  (if (> (length (cdr yank-menu)) kill-ring-max)
      (setcdr (nthcdr kill-ring-max yank-menu) nil)))

(put 'menu-bar-select-yank 'apropos-inhibit t)
(defun menu-bar-select-yank ()
  (interactive "*")
  (push-mark (point))
  (insert last-command-event))

\f
(defcustom buffers-menu-show-directories 'unless-uniquify
  "If non-nil, show directories in the Buffers menu for buffers that have them.
The special value `unless-uniquify' means that directories will be shown
unless `uniquify-buffer-name-style' is non-nil (in which case, buffer
names should include enough of a buffer's directory to distinguish it
from other buffers).

Setting this variable directly does not take effect until next time the
Buffers menu is regenerated."
  :set (lambda (symbol value)
	 (set symbol value)
	 (menu-bar-update-buffers t))
  :initialize 'custom-initialize-default
  :type '(choice (const :tag "Never" nil)
		 (const :tag "Unless uniquify is enabled" unless-uniquify)
		 (const :tag "Always" t))
  :group 'menu)

(defcustom buffers-menu-show-status t
  "If non-nil, show modified/read-only status of buffers in the Buffers menu.
Setting this variable directly does not take effect until next time the
Buffers menu is regenerated."
  :set (lambda (symbol value)
	 (set symbol value)
	 (menu-bar-update-buffers t))
  :initialize 'custom-initialize-default
  :type 'boolean
  :group 'menu)

(defvar list-buffers-directory nil)

(defvar menu-bar-update-buffers-maxbuf)

(defun menu-bar-select-buffer ()
  (interactive)
  (switch-to-buffer last-command-event))

(defun menu-bar-select-frame ()
  (interactive)
  (let (frame)
    (dolist (f (frame-list))
      (when (equal last-command-event (frame-parameter f 'name))
	(setq frame f)))
  (make-frame-visible frame)
  (raise-frame frame)
  (select-frame frame)))

(defun menu-bar-update-buffers-1 (elt)
  (let* ((buf (car elt))
	 (file
	  (and (if (eq buffers-menu-show-directories 'unless-uniquify)
		   (or (not (boundp 'uniquify-buffer-name-style))
		       (null uniquify-buffer-name-style))
		 buffers-menu-show-directories)
	       (or (buffer-file-name buf)
		   (buffer-local-value 'list-buffers-directory buf)))))
    (when file
      (setq file (file-name-directory file)))
    (when (and file (> (length file) 20))
      (setq file (concat "..." (substring file -17))))
    (cons (if buffers-menu-show-status
	      (let ((mod (if (buffer-modified-p buf) "*" ""))
		    (ro (if (buffer-local-value 'buffer-read-only buf) "%" "")))
		(if file
		    (format "%s  %s%s  --  %s" (cdr elt) mod ro file)
		  (format "%s  %s%s" (cdr elt) mod ro)))
	    (if file
		(format "%s  --  %s"  (cdr elt) file)
	      (cdr elt)))
	  buf)))

;; Used to cache the menu entries for commands in the Buffers menu
(defvar menu-bar-buffers-menu-command-entries nil)

(defun menu-bar-update-buffers (&optional force)
  ;; If user discards the Buffers item, play along.
  (and (lookup-key (current-global-map) [menu-bar buffer])
       (or force (frame-or-buffer-changed-p))
       (let ((buffers (buffer-list))
	     (frames (frame-list))
	     buffers-menu frames-menu)
	 ;; If requested, list only the N most recently selected buffers.
	 (if (and (integerp buffers-menu-max-size)
		  (> buffers-menu-max-size 1))
	     (if (> (length buffers) buffers-menu-max-size)
		 (setcdr (nthcdr buffers-menu-max-size buffers) nil)))

	 ;; Make the menu of buffers proper.
	 (setq buffers-menu
	       (let* ((buffer-list
		       (mapcar 'list buffers))
		      (menu-bar-update-buffers-maxbuf 0)
		      alist)
		 ;; Put into each element of buffer-list
		 ;; the name for actual display,
		 ;; perhaps truncated in the middle.
		 (dolist (buf buffer-list)
		   (let ((name (buffer-name (car buf))))
		     (setcdr buf
			     (if (> (length name) 27)
				 (concat (substring name 0 12)
					 "..."
					 (substring name -12))
			       name))))
		 ;; Compute the maximum length of any name.
		 (dolist (buf buffer-list)
		   (unless (eq ?\  (aref (cdr buf) 0))
		     (setq menu-bar-update-buffers-maxbuf
			   (max menu-bar-update-buffers-maxbuf
				(length (cdr buf))))))
		 ;; Set ALIST to an alist of the form
		 ;; ITEM-STRING . BUFFER
		 (dolist (buf buffer-list)
		   (unless (eq ?\  (aref (cdr buf) 0))
		     (push (menu-bar-update-buffers-1 buf) alist)))
		 ;; Now make the actual list of items, and add
		 ;; some miscellaneous buffer commands to the end.
		 (mapcar (lambda (pair)
			   ;; This is somewhat risque, to use
			   ;; the buffer name itself as the event
			   ;; type to define, but it works.
			   ;; It would not work to use the buffer
			   ;; since a buffer as an event has its
			   ;; own meaning.
			   (nconc (list (buffer-name (cdr pair))
					(car pair)
					(cons nil nil))
				  'menu-bar-select-buffer))
			 (nreverse alist))))

	 ;; Make a Frames menu if we have more than one frame.
	 (when (cdr frames)
	   (let ((frames-menu
		  (cons 'keymap
			(cons "Select Frame"
			      (mapcar
			       (lambda (frame)
				 (nconc
				  (list (frame-parameter frame 'name)
					(frame-parameter frame 'name)
					(cons nil nil))
				  'menu-bar-select-frame))
			       frames)))))
	     ;; Put it after the normal buffers
	     (setq buffers-menu
		   (nconc buffers-menu
			  `((frames-separator "--")
			    (frames menu-item "Frames" ,frames-menu))))))

	 ;; Add in some normal commands at the end of the menu.  We use
	 ;; the copy cached in `menu-bar-buffers-menu-command-entries'
	 ;; if it's been set already.  Note that we can't use constant
	 ;; lists for the menu-entries, because the low-level menu-code
	 ;; modifies them.
	 (unless menu-bar-buffers-menu-command-entries
	   (setq menu-bar-buffers-menu-command-entries
		 (list '(command-separator "--")
		       (list 'next-buffer
			     'menu-item
			     "Next Buffer"
			     'next-buffer
			     :help "Switch to the \"next\" buffer in a cyclic order")
		       (list 'prev-buffer
			     'menu-item
			     "Previous Buffer"
			     'prev-buffer
			     :help "Switch to the \"previous\" buffer in a cyclic order")
		       (list 'select-named-buffer
			     'menu-item
			     "Select Named Buffer..."
			     'switch-to-buffer
			     :help "Prompt for a buffer name, and select that buffer in the current window")
		       (list 'list-all-buffers
			     'menu-item
			     "List All Buffers"
			     'list-buffers
			     :help "Pop up a window listing all emacs buffers"
			     ))))
	 (setq buffers-menu
	       (nconc buffers-menu menu-bar-buffers-menu-command-entries))

	 (setq buffers-menu (cons 'keymap (cons "Select Buffer" buffers-menu)))
	 (define-key (current-global-map) [menu-bar buffer]
	   (cons "Buffers" buffers-menu)))))

(add-hook 'menu-bar-update-hook 'menu-bar-update-buffers)

(menu-bar-update-buffers)

;; this version is too slow
;;(defun format-buffers-menu-line (buffer)
;;  "Returns a string to represent the given buffer in the Buffer menu.
;;nil means the buffer shouldn't be listed.  You can redefine this."
;;  (if (string-match "\\` " (buffer-name buffer))
;;      nil
;;    (save-excursion
;;     (set-buffer buffer)
;;     (let ((size (buffer-size)))
;;       (format "%s%s %-19s %6s %-15s %s"
;;	       (if (buffer-modified-p) "*" " ")
;;	       (if buffer-read-only "%" " ")
;;	       (buffer-name)
;;	       size
;;	       mode-name
;;	       (or (buffer-file-name) ""))))))
\f
;;; Set up a menu bar menu for the minibuffer.

(dolist (map (list minibuffer-local-map
		   ;; This shouldn't be necessary, but there's a funny
		   ;; bug in keymap.c that I don't understand yet.  -stef
		   minibuffer-local-completion-map))
  (define-key map [menu-bar minibuf]
    (cons "Minibuf" (make-sparse-keymap "Minibuf"))))

(let ((map minibuffer-local-completion-map))
  (define-key map [menu-bar minibuf ?\?]
    (list 'menu-item "List Completions" 'minibuffer-completion-help
	  :help "Display all possible completions"))
  (define-key map [menu-bar minibuf space]
    (list 'menu-item "Complete Word" 'minibuffer-complete-word
	  :help "Complete at most one word"))
  (define-key map [menu-bar minibuf tab]
    (list 'menu-item "Complete" 'minibuffer-complete
	  :help "Complete as far as possible")))

(let ((map minibuffer-local-map))
  (define-key map [menu-bar minibuf quit]
    (list 'menu-item "Quit" 'keyboard-escape-quit
	  :help "Abort input and exit minibuffer"))
  (define-key map [menu-bar minibuf return]
    (list 'menu-item "Enter" 'exit-minibuffer
	  :help "Terminate input and exit minibuffer")))
\f
;;;###autoload
;; This comment is taken from toolbar/tool-bar.el near
;; (put 'tool-bar-mode ...)
;; We want to pretend the menu bar by standard is on, as this will make
;; customize consider disabling the menu bar a customization, and save
;; that.  We could do this for real by setting :init-value below, but
;; that would overwrite disabling the tool bar from X resources.
(put 'menu-bar-mode 'standard-value '(t))

;;;###autoload
(define-minor-mode menu-bar-mode
  "Toggle display of a menu bar on each frame.
This command applies to all frames that exist and frames to be
created in the future.
With a numeric argument, if the argument is positive,
turn on menu bars; otherwise, turn off menu bars."
  :init-value nil
  :global t
  :group 'frames
  ;; Make menu-bar-mode and default-frame-alist consistent.
  (let ((lines (if menu-bar-mode 1 0)))
    ;; Alter existing frames...
    (mapc (lambda (frame)
	    (modify-frame-parameters frame
				     (list (cons 'menu-bar-lines lines))))
	  (frame-list))
    ;; ...and future ones.
    (let ((elt (assq 'menu-bar-lines default-frame-alist)))
      (if elt
	  (setcdr elt lines)
	(add-to-list 'default-frame-alist (cons 'menu-bar-lines lines)))))

  ;; Make the message appear when Emacs is idle.  We can not call message
  ;; directly.  The minor-mode message "Menu-bar mode disabled" comes
  ;; after this function returns, overwriting any message we do here.
  (when (and (interactive-p) (not menu-bar-mode))
    (run-with-idle-timer 0 nil 'message
			 "Menu-bar mode disabled.  Use M-x menu-bar-mode to make the menu bar appear."))
  menu-bar-mode)

(provide 'menu-bar)

;;; arch-tag: 6e6a3c22-4ec4-4d3d-8190-583f8ef94ced
;;; menu-bar.el ends here