mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-11-29 07:58:28 +00:00
457 lines
16 KiB
EmacsLisp
457 lines
16 KiB
EmacsLisp
;;; menu-bar.el --- define a default menu bar.
|
||
|
||
;; Author: RMS
|
||
;; Keywords: internal
|
||
|
||
;; Copyright (C) 1993, 1994 Free Software Foundation, Inc.
|
||
|
||
;; 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, 675 Mass Ave, Cambridge, MA 02139, USA.
|
||
|
||
;;; Code:
|
||
|
||
;; 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"))
|
||
;; Put Help item last.
|
||
(setq menu-bar-final-items '(help))
|
||
(define-key global-map [menu-bar help] (cons "Help" menu-bar-help-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-file-menu (make-sparse-keymap "File"))
|
||
(define-key global-map [menu-bar file] (cons "File" menu-bar-file-menu))
|
||
|
||
(define-key menu-bar-file-menu [exit-emacs]
|
||
'("Exit Emacs" . save-buffers-kill-emacs))
|
||
|
||
(define-key menu-bar-file-menu [separator-compare]
|
||
'("--"))
|
||
|
||
(define-key menu-bar-file-menu [epatch]
|
||
'("Apply Patch" . menu-bar-epatch-menu))
|
||
(define-key menu-bar-file-menu [ediff]
|
||
'("Compare" . menu-bar-ediff-menu))
|
||
(define-key menu-bar-file-menu [emerge] '("Emerge" . menu-bar-emerge-menu))
|
||
|
||
(define-key menu-bar-file-menu [separator-misc]
|
||
'("--"))
|
||
|
||
(define-key menu-bar-file-menu [calendar] '("Calendar" . calendar))
|
||
(define-key menu-bar-file-menu [rmail] '("Read Mail" . rmail))
|
||
(define-key menu-bar-file-menu [gnus] '("Read Net News" . gnus))
|
||
|
||
(define-key menu-bar-file-menu [separator-frames]
|
||
'("--"))
|
||
|
||
(define-key menu-bar-file-menu [delete-frame] '("Delete Frame" . delete-frame))
|
||
(define-key menu-bar-file-menu [make-frame] '("Make New Frame" . make-frame))
|
||
|
||
(define-key menu-bar-file-menu [separator-buffers]
|
||
'("--"))
|
||
|
||
(define-key menu-bar-file-menu [bookmark]
|
||
'("Bookmarks" . menu-bar-bookmark-map))
|
||
(define-key menu-bar-file-menu [print-buffer]
|
||
'("Print Buffer" . print-buffer))
|
||
(define-key menu-bar-file-menu [kill-buffer]
|
||
'("Kill Buffer" . kill-this-buffer))
|
||
(define-key menu-bar-file-menu [insert-file]
|
||
'("Insert File" . insert-file))
|
||
(define-key menu-bar-file-menu [revert-buffer]
|
||
'("Revert Buffer" . revert-buffer))
|
||
(define-key menu-bar-file-menu [write-file]
|
||
'("Save Buffer As..." . write-file))
|
||
(define-key menu-bar-file-menu [save-buffer] '("Save Buffer" . save-buffer))
|
||
(define-key menu-bar-file-menu [dired] '("Open Directory..." . dired))
|
||
(define-key menu-bar-file-menu [open-file] '("Open File..." . find-file))
|
||
|
||
;; This is just one element of the ediff menu--the first.
|
||
(define-key menu-bar-ediff-menu [window]
|
||
'("This Window And Next Window" . compare-windows))
|
||
|
||
(define-key menu-bar-edit-menu [query-replace]
|
||
'("Query Replace" . query-replace))
|
||
(define-key menu-bar-edit-menu [re-search-back]
|
||
'("Regexp Search Backwards" . re-search-backward))
|
||
(define-key menu-bar-edit-menu [search-back]
|
||
'("Search Backwards" . search-backward))
|
||
(define-key menu-bar-edit-menu [re-search-fwd]
|
||
'("Regexp Search" . re-search-forward))
|
||
(define-key menu-bar-edit-menu [search-fwd]
|
||
'("Search" . search-forward))
|
||
|
||
(define-key menu-bar-edit-menu [separator-misc]
|
||
'("--"))
|
||
|
||
(define-key menu-bar-edit-menu [spell] '("Spell" . ispell-menu-map))
|
||
(define-key menu-bar-edit-menu [fill] '("Fill" . fill-region))
|
||
|
||
(define-key menu-bar-edit-menu [separator-edit]
|
||
'("--"))
|
||
|
||
(define-key menu-bar-edit-menu [clear] '("Clear" . delete-region))
|
||
(define-key menu-bar-edit-menu [choose-next-paste]
|
||
'("Choose Next Paste >" . mouse-menu-choose-yank))
|
||
(define-key menu-bar-edit-menu [paste] '("Paste" . yank))
|
||
(define-key menu-bar-edit-menu [copy] '("Copy" . kill-ring-save))
|
||
(define-key menu-bar-edit-menu [cut] '("Cut" . kill-region))
|
||
(define-key menu-bar-edit-menu [undo] '("Undo" . undo))
|
||
|
||
(put 'fill-region 'menu-enable 'mark-active)
|
||
(put 'kill-region 'menu-enable 'mark-active)
|
||
(put 'kill-ring-save 'menu-enable 'mark-active)
|
||
(put 'yank 'menu-enable '(x-selection-exists-p))
|
||
(put 'delete-region 'menu-enable 'mark-active)
|
||
(put 'undo 'menu-enable '(if (eq last-command 'undo)
|
||
pending-undo-list
|
||
(consp buffer-undo-list)))
|
||
(put 'query-replace 'menu-enable (not buffer-read-only))
|
||
|
||
(autoload 'ispell-menu-map "ispell" nil t 'keymap)
|
||
|
||
;; 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 (x-selection-exists-p) (x-selection-exists-p 'CLIPBOARD)))
|
||
|
||
(defun clipboard-yank ()
|
||
"Reinsert the last stretch of killed text, or the clipboard contents."
|
||
(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" 'clipboard-yank))
|
||
(define-key menu-bar-edit-menu [copy]
|
||
(cons "Copy" 'clipboard-kill-ring-save))
|
||
(define-key menu-bar-edit-menu [cut]
|
||
(cons "Cut" 'clipboard-kill-region))
|
||
|
||
(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))
|
||
|
||
(define-key menu-bar-help-menu [emacs-version]
|
||
'("Show Version" . emacs-version))
|
||
(define-key menu-bar-help-menu [report-emacs-bug]
|
||
'("Send Bug Report" . report-emacs-bug))
|
||
(define-key menu-bar-help-menu [emacs-tutorial]
|
||
'("Emacs Tutorial" . help-with-tutorial))
|
||
(define-key menu-bar-help-menu [man] '("Man..." . manual-entry))
|
||
(define-key menu-bar-help-menu [describe-variable]
|
||
'("Describe Variable..." . describe-variable))
|
||
(define-key menu-bar-help-menu [describe-function]
|
||
'("Describe Function..." . describe-function))
|
||
(define-key menu-bar-help-menu [describe-key]
|
||
'("Describe Key..." . describe-key))
|
||
(define-key menu-bar-help-menu [list-keybindings]
|
||
'("List Keybindings" . describe-bindings))
|
||
(define-key menu-bar-help-menu [command-apropos]
|
||
'("Command Apropos..." . command-apropos))
|
||
(define-key menu-bar-help-menu [describe-mode]
|
||
'("Describe Mode" . describe-mode))
|
||
(define-key menu-bar-help-menu [info] '("Info" . info))
|
||
|
||
(define-key menu-bar-help-menu [emacs-news] '("Emacs News" . view-emacs-news))
|
||
(defun kill-this-buffer () ; for the menubar
|
||
"Kills 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)))
|
||
(> count 1)))
|
||
|
||
(put 'save-buffer 'menu-enable '(buffer-modified-p))
|
||
(put 'revert-buffer 'menu-enable
|
||
'(or revert-buffer-function revert-buffer-insert-file-contents-function
|
||
(and (buffer-file-name)
|
||
(or (buffer-modified-p)
|
||
(not (verify-visited-file-modtime (current-buffer)))))))
|
||
;; Permit deleting frame if it would leave a visible or iconified frame.
|
||
(put 'delete-frame 'menu-enable
|
||
'(let ((frames (frame-list))
|
||
(count 0))
|
||
(while frames
|
||
(if (cdr (assq 'visibility (frame-parameters (car frames))))
|
||
(setq count (1+ count)))
|
||
(setq frames (cdr frames)))
|
||
(> count 1)))
|
||
(put 'kill-this-buffer 'menu-enable '(kill-this-buffer-enabled-p))
|
||
|
||
(put 'advertised-undo 'menu-enable
|
||
'(and (not (eq t buffer-undo-list))
|
||
(if (eq last-command 'undo)
|
||
(and (boundp 'pending-undo-list)
|
||
pending-undo-list)
|
||
buffer-undo-list)))
|
||
|
||
(defvar yank-menu-length 100
|
||
"*Maximum length of an item in the menu for \
|
||
\\[mouse-menu-choose-yank].")
|
||
|
||
(defun mouse-menu-choose-yank (event)
|
||
"Pop up a menu of the kill-ring for selection with the mouse.
|
||
The kill-ring-yank-pointer is moved to the selected element.
|
||
A subsequent \\[yank] yanks the choice just selected."
|
||
(interactive "e")
|
||
(let* ((count 0)
|
||
(menu (mapcar (lambda (string)
|
||
(if (> (length string) yank-menu-length)
|
||
(setq string (substring string
|
||
0 yank-menu-length)))
|
||
(prog1 (cons string count)
|
||
(setq count (1+ count))))
|
||
kill-ring))
|
||
(arg (x-popup-menu event
|
||
(list "Yank Menu"
|
||
(cons "Choose Next Yank" menu)))))
|
||
;; A mouse click outside the menu returns nil.
|
||
;; Avoid a confusing error from passing nil to rotate-yank-pointer.
|
||
;; XXX should this perhaps do something other than simply return? -rm
|
||
(if arg
|
||
(progn
|
||
;; We don't use `rotate-yank-pointer' because we want to move
|
||
;; relative to the beginning of kill-ring, not the current
|
||
;; position. Also, that would ask for any new X selection and
|
||
;; thus change the list of items the user just chose from, which
|
||
;; would be highly confusing.
|
||
(setq kill-ring-yank-pointer (nthcdr arg kill-ring))
|
||
(if (interactive-p)
|
||
(message "The next yank will insert the selected text.")
|
||
(current-kill 0))))))
|
||
(put 'mouse-menu-choose-yank 'menu-enable 'kill-ring)
|
||
|
||
(define-key global-map [menu-bar buffer] '("Buffers" . menu-bar-buffers))
|
||
|
||
(defalias 'menu-bar-buffers (make-sparse-keymap "Buffers"))
|
||
|
||
(defvar complex-buffers-menu-p nil
|
||
"*Non-nil says, offer a choice of actions after you pick a buffer.
|
||
This applies to the Buffers menu from the menu bar.")
|
||
|
||
(defvar 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.")
|
||
|
||
(defvar list-buffers-directory nil)
|
||
|
||
(defun menu-bar-select-buffer ()
|
||
(interactive)
|
||
(switch-to-buffer last-command-event))
|
||
|
||
(defun menu-bar-select-frame ()
|
||
(interactive)
|
||
(make-frame-visible last-command-event)
|
||
(raise-frame last-command-event)
|
||
(select-frame last-command-event))
|
||
|
||
(defun menu-bar-update-buffers ()
|
||
;; If user discards the Buffers item, play along.
|
||
(and (lookup-key (current-global-map) [menu-bar buffer])
|
||
(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
|
||
(cons "Select Buffer"
|
||
(let ((tail buffers)
|
||
(maxbuf 0)
|
||
(maxlen 0)
|
||
alist
|
||
head)
|
||
(while tail
|
||
(or (eq ?\ (aref (buffer-name (car tail)) 0))
|
||
(setq maxbuf
|
||
(max maxbuf
|
||
(length (buffer-name (car tail))))))
|
||
(setq tail (cdr tail)))
|
||
(setq tail buffers)
|
||
(while tail
|
||
(let ((elt (car tail)))
|
||
(or (eq ?\ (aref (buffer-name elt) 0))
|
||
(setq alist (cons
|
||
(cons
|
||
(format
|
||
(format "%%%ds %%s%%s %%s"
|
||
maxbuf)
|
||
(buffer-name elt)
|
||
(if (buffer-modified-p elt)
|
||
"*" " ")
|
||
(save-excursion
|
||
(set-buffer elt)
|
||
(if buffer-read-only "%" " "))
|
||
(or (buffer-file-name elt)
|
||
(save-excursion
|
||
(set-buffer elt)
|
||
list-buffers-directory)
|
||
""))
|
||
elt)
|
||
alist)))
|
||
(and alist (> (length (car (car alist))) maxlen)
|
||
(setq maxlen (length (car (car alist))))))
|
||
(setq tail (cdr tail)))
|
||
(setq alist (nreverse alist))
|
||
(nconc (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))
|
||
alist)
|
||
(list
|
||
(cons
|
||
'list-buffers
|
||
(cons
|
||
(concat (make-string (max (- (/ maxlen 2) 8) 0)
|
||
?\ )
|
||
"List All Buffers")
|
||
'list-buffers)))))))
|
||
|
||
|
||
;; Make a Frames menu if we have more than one frame.
|
||
(if (cdr frames)
|
||
(setq frames-menu
|
||
(cons "Select Frame"
|
||
(mapcar '(lambda (frame)
|
||
(nconc (list frame
|
||
(cdr (assq 'name
|
||
(frame-parameters frame)))
|
||
(cons nil nil))
|
||
'menu-bar-select-frame))
|
||
frames))))
|
||
(if buffers-menu
|
||
(setq buffers-menu (cons 'keymap buffers-menu)))
|
||
(if frames-menu
|
||
(setq frames-menu (cons 'keymap frames-menu)))
|
||
(define-key (current-global-map) [menu-bar buffer]
|
||
(cons "Buffers"
|
||
(if (and buffers-menu frames-menu)
|
||
(list 'keymap "Buffers and Frames"
|
||
(cons 'buffers (cons "Buffers" buffers-menu))
|
||
(cons 'frames (cons "Frames" frames-menu)))
|
||
(or buffers-menu frames-menu 'undefined)))))))
|
||
|
||
(add-hook 'menu-bar-update-hook '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) ""))))))
|
||
|
||
(defvar menu-bar-mode nil)
|
||
|
||
(defun menu-bar-mode (flag)
|
||
"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 negative,
|
||
turn off menu bars; otherwise, turn on menu bars."
|
||
(interactive "P")
|
||
|
||
;; Make menu-bar-mode and default-frame-alist consistent.
|
||
(let ((default (assq 'menu-bar-lines default-frame-alist)))
|
||
(if default
|
||
(setq menu-bar-mode (not (eq (cdr default) 0)))
|
||
(setq default-frame-alist
|
||
(cons (cons 'menu-bar-lines (if menu-bar-mode 1 0))
|
||
default-frame-alist))))
|
||
|
||
;; Toggle or set the mode, according to FLAG.
|
||
(setq menu-bar-mode (if (null flag) (not menu-bar-mode)
|
||
(> (prefix-numeric-value flag) 0)))
|
||
|
||
;; Apply it to default-frame-alist.
|
||
(let ((parameter (assq 'menu-bar-lines default-frame-alist)))
|
||
(if (consp parameter)
|
||
(setcdr parameter (if menu-bar-mode 1 0))
|
||
(setq default-frame-alist
|
||
(cons (cons 'menu-bar-lines (if menu-bar-mode 1 0))
|
||
default-frame-alist))))
|
||
|
||
;; Apply it to existing frames.
|
||
(let ((frames (frame-list)))
|
||
(while frames
|
||
(let ((height (cdr (assq 'height (frame-parameters (car frames))))))
|
||
(modify-frame-parameters (car frames)
|
||
(list (cons 'menu-bar-lines
|
||
(if menu-bar-mode 1 0))))
|
||
(modify-frame-parameters (car frames)
|
||
(list (cons 'height height))))
|
||
(setq frames (cdr frames)))))
|
||
|
||
(provide 'menu-bar)
|
||
|
||
;;; menu-bar.el ends here
|