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840 lines
30 KiB
EmacsLisp
840 lines
30 KiB
EmacsLisp
;;; menu-bar.el --- define a default menu bar.
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;; Copyright (C) 1993, 1994, 1995 Free Software Foundation, Inc.
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;; Author: RMS
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;; Maintainer: FSF
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;; Keywords: internal
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation; either version 2, or (at your option)
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;; any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs; see the file COPYING. If not, write to the
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;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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;; Boston, MA 02111-1307, USA.
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;; Avishai Yacobi suggested some menu rearrangements.
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;;; Code:
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;;; User options:
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(defcustom buffers-menu-max-size 10
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"*Maximum number of entries which may appear on the Buffers menu.
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If this is 10, then only the ten most-recently-selected buffers are shown.
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If this is nil, then all buffers are shown.
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A large number or nil slows down menu responsiveness."
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:type '(choice integer
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(const :tag "All" nil))
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:group 'mouse)
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;; Don't clobber an existing menu-bar keymap, to preserve any menu-bar key
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;; definitions made in loaddefs.el.
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(or (lookup-key global-map [menu-bar])
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(define-key global-map [menu-bar] (make-sparse-keymap "menu-bar")))
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(defvar menu-bar-help-menu (make-sparse-keymap "Help"))
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;; Force Help item to come last, after the major mode's own items.
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;; The symbol used to be called `help', but that gets confused with the
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;; help key.
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(setq menu-bar-final-items '(help-menu))
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(define-key global-map [menu-bar help-menu] (cons "Help" menu-bar-help-menu))
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(defvar menu-bar-search-menu (make-sparse-keymap "Search"))
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(define-key global-map [menu-bar search] (cons "Search" menu-bar-search-menu))
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(defvar menu-bar-edit-menu (make-sparse-keymap "Edit"))
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(define-key global-map [menu-bar edit] (cons "Edit" menu-bar-edit-menu))
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(defvar menu-bar-tools-menu (make-sparse-keymap "Tools"))
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(define-key global-map [menu-bar tools] (cons "Tools" menu-bar-tools-menu))
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(defvar menu-bar-files-menu (make-sparse-keymap "Files"))
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(define-key global-map [menu-bar files] (cons "Files" menu-bar-files-menu))
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;; This alias is for compatibility with 19.28 and before.
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(defvar menu-bar-file-menu menu-bar-files-menu)
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(defvar vc-menu-map (make-sparse-keymap "Version Control"))
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(define-key menu-bar-tools-menu [gdb] '("Debugger..." . gdb))
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(define-key menu-bar-tools-menu [compile] '("Compile..." . compile))
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(define-key menu-bar-tools-menu [grep] '("Search Files..." . grep))
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(define-key menu-bar-tools-menu [separator-1]
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'("--"))
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(define-key menu-bar-tools-menu [calendar] '("Display Calendar" . calendar))
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(define-key menu-bar-tools-menu [compose-mail] '("Send Mail" . compose-mail))
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(define-key menu-bar-tools-menu [rmail] '("Read Mail" . rmail))
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(define-key menu-bar-tools-menu [gnus] '("Read Net News" . gnus))
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(define-key menu-bar-tools-menu [separator-vc]
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'("--"))
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(define-key menu-bar-tools-menu [vc]
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(cons "Version Control" vc-menu-map))
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(define-key menu-bar-tools-menu [separator-compare]
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'("--"))
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(define-key menu-bar-tools-menu [ediff-misc]
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'("Ediff Miscellanea" . menu-bar-ediff-misc-menu))
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(define-key menu-bar-tools-menu [epatch]
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'("Apply Patch" . menu-bar-epatch-menu))
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(define-key menu-bar-tools-menu [ediff-merge]
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'("Merge" . menu-bar-ediff-merge-menu))
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(define-key menu-bar-tools-menu [compare]
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'("Compare" . menu-bar-ediff-menu))
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(define-key menu-bar-tools-menu [separator-print]
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'("--"))
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(defvar menu-bar-print-menu (make-sparse-keymap "Print"))
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(define-key menu-bar-print-menu [ps-print-region]
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'("Postscript Print Region" . ps-print-region-with-faces))
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(define-key menu-bar-print-menu [ps-print-buffer]
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'("Postscript Print Buffer" . ps-print-buffer-with-faces))
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(define-key menu-bar-print-menu [separator-ps-print]
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'("--"))
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(define-key menu-bar-print-menu [print-region]
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'("Print Region" . print-region))
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(define-key menu-bar-print-menu [print-buffer]
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'("Print Buffer" . print-buffer))
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(define-key menu-bar-tools-menu [print]
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(cons "Print" menu-bar-print-menu))
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(put 'print-region 'menu-enable 'mark-active)
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(put 'ps-print-region-with-faces 'menu-enable 'mark-active)
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(define-key menu-bar-files-menu [exit-emacs]
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'("Exit Emacs" . save-buffers-kill-emacs))
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(define-key menu-bar-files-menu [separator-exit]
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'("--"))
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(define-key menu-bar-files-menu [one-window]
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'("One Window" . delete-other-windows))
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(define-key menu-bar-files-menu [split-window]
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'("Split Window" . split-window-vertically))
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(if (fboundp 'delete-frame)
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(progn
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;; Don't use delete-frame as event name
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;; because that is a special event.
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(define-key menu-bar-files-menu [delete-this-frame]
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'("Delete Frame" . delete-frame))
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(define-key menu-bar-files-menu [make-frame-on-display]
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'("Open New Display..." . make-frame-on-display))
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(define-key menu-bar-files-menu [make-frame]
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'("Make New Frame" . make-frame-command))))
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(define-key menu-bar-files-menu [separator-buffers]
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'("--"))
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(define-key menu-bar-files-menu [kill-buffer]
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'("Kill Current Buffer" . kill-this-buffer))
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(define-key menu-bar-files-menu [insert-file]
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'("Insert File..." . insert-file))
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(define-key menu-bar-files-menu [revert-buffer]
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'("Revert Buffer" . revert-buffer))
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(define-key menu-bar-files-menu [write-file]
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'("Save Buffer As..." . write-file))
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(define-key menu-bar-files-menu [save-buffer] '("Save Buffer" . save-buffer))
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(define-key menu-bar-files-menu [dired] '("Open Directory..." . dired))
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(define-key menu-bar-files-menu [open-file] '("Open File..." . find-file))
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(defun nonincremental-search-forward (string)
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"Read a string and search for it nonincrementally."
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(interactive "sSearch for string: ")
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(if (equal string "")
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(search-forward (car search-ring))
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(isearch-update-ring string nil)
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(search-forward string)))
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(defun nonincremental-search-backward (string)
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"Read a string and search backward for it nonincrementally."
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(interactive "sSearch for string: ")
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(if (equal string "")
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(search-backward (car search-ring))
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(isearch-update-ring string nil)
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(search-backward string)))
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(defun nonincremental-re-search-forward (string)
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"Read a regular expression and search for it nonincrementally."
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(interactive "sSearch for regexp: ")
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(if (equal string "")
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(re-search-forward (car regexp-search-ring))
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(isearch-update-ring string t)
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(re-search-forward string)))
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(defun nonincremental-re-search-backward (string)
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"Read a regular expression and search backward for it nonincrementally."
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(interactive "sSearch for regexp: ")
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(if (equal string "")
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(re-search-backward (car regexp-search-ring))
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(isearch-update-ring string t)
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(re-search-backward string)))
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(defun nonincremental-repeat-search-forward ()
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"Search forward for the previous search string."
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(interactive)
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(if (null search-ring)
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(error "No previous search"))
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(search-forward (car search-ring)))
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(defun nonincremental-repeat-search-backward ()
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"Search backward for the previous search string."
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(interactive)
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(if (null search-ring)
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(error "No previous search"))
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(search-backward (car search-ring)))
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(defun nonincremental-repeat-re-search-forward ()
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"Search forward for the previous regular expression."
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(interactive)
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(if (null regexp-search-ring)
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(error "No previous search"))
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(re-search-forward (car regexp-search-ring)))
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(defun nonincremental-repeat-re-search-backward ()
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"Search backward for the previous regular expression."
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(interactive)
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(if (null regexp-search-ring)
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(error "No previous search"))
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(re-search-backward (car regexp-search-ring)))
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(define-key menu-bar-search-menu [query-replace-regexp]
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'("Query Replace Regexp..." . query-replace-regexp))
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(define-key menu-bar-search-menu [query-replace]
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'("Query Replace..." . query-replace))
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(define-key menu-bar-search-menu [find-tag]
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'("Find Tag..." . find-tag))
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(define-key menu-bar-search-menu [bookmark]
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'("Bookmarks" . menu-bar-bookmark-map))
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(define-key menu-bar-search-menu [separator-search]
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'("--"))
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(define-key menu-bar-search-menu [repeat-regexp-back]
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'("Repeat Regexp Backwards" . nonincremental-repeat-re-search-backward))
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(define-key menu-bar-search-menu [repeat-search-back]
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'("Repeat Backwards" . nonincremental-repeat-search-backward))
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(define-key menu-bar-search-menu [repeat-regexp-fwd]
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'("Repeat Regexp" . nonincremental-repeat-re-search-forward))
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(define-key menu-bar-search-menu [repeat-search-fwd]
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'("Repeat Search" . nonincremental-repeat-search-forward))
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(define-key menu-bar-search-menu [separator-repeat]
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'("--"))
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(define-key menu-bar-search-menu [re-search-backward]
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'("Regexp Search Backwards..." . nonincremental-re-search-backward))
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(define-key menu-bar-search-menu [search-backward]
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'("Search Backwards..." . nonincremental-search-backward))
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(define-key menu-bar-search-menu [re-search-forward]
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'("Regexp Search..." . nonincremental-re-search-forward))
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(define-key menu-bar-search-menu [search-forward]
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'("Search..." . nonincremental-search-forward))
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(if (fboundp 'start-process)
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(define-key menu-bar-edit-menu [spell] '("Spell" . ispell-menu-map)))
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(define-key menu-bar-edit-menu [fill] '("Fill" . fill-region))
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(define-key menu-bar-edit-menu [props] '("Text Properties" . facemenu-menu))
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(define-key menu-bar-edit-menu [separator-edit]
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'("--"))
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(define-key menu-bar-edit-menu [clear] '("Clear" . delete-region))
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(define-key menu-bar-edit-menu [paste] '("Paste Most Recent" . yank))
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(defvar yank-menu (cons "Select Yank" nil))
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(fset 'yank-menu (cons 'keymap yank-menu))
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(define-key menu-bar-edit-menu [select-paste] '("Select and Paste" . yank-menu))
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(define-key menu-bar-edit-menu [copy] '("Copy" . menu-bar-kill-ring-save))
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(define-key menu-bar-edit-menu [cut] '("Cut" . kill-region))
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(define-key menu-bar-edit-menu [undo] '("Undo" . undo))
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(defun menu-bar-kill-ring-save (beg end)
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(interactive "r")
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(if (mouse-region-match)
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(message "Select a region with the mouse does `copy' automatically")
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(kill-ring-save beg end)))
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(put 'fill-region 'menu-enable '(and mark-active (not buffer-read-only)))
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(put 'kill-region 'menu-enable '(and mark-active (not buffer-read-only)))
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(put 'menu-bar-kill-ring-save 'menu-enable 'mark-active)
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(put 'yank 'menu-enable '(and (x-selection-exists-p) (not buffer-read-only)))
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(put 'yank-menu 'menu-enable '(and (cdr yank-menu) (not buffer-read-only)))
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(put 'delete-region 'menu-enable '(and mark-active
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(not buffer-read-only)
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(not (mouse-region-match))))
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(put 'undo 'menu-enable '(and (not buffer-read-only)
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(if (eq last-command 'undo)
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pending-undo-list
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(consp buffer-undo-list))))
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(put 'query-replace 'menu-enable '(not buffer-read-only))
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(put 'query-replace-regexp 'menu-enable '(not buffer-read-only))
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(autoload 'ispell-menu-map "ispell" nil t 'keymap)
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;; These are alternative definitions for the cut, paste and copy
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;; menu items. Use them if your system expects these to use the clipboard.
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(put 'clipboard-kill-region 'menu-enable 'mark-active)
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(put 'clipboard-kill-ring-save 'menu-enable 'mark-active)
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(put 'clipboard-yank 'menu-enable
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'(or (x-selection-exists-p) (x-selection-exists-p 'CLIPBOARD)))
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(defun clipboard-yank ()
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"Reinsert the last stretch of killed text, or the clipboard contents."
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(interactive)
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(let ((x-select-enable-clipboard t))
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(yank)))
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(defun clipboard-kill-ring-save (beg end)
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"Copy region to kill ring, and save in the X clipboard."
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(interactive "r")
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(let ((x-select-enable-clipboard t))
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(kill-ring-save beg end)))
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(defun clipboard-kill-region (beg end)
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"Kill the region, and save it in the X clipboard."
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(interactive "r")
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(let ((x-select-enable-clipboard t))
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(kill-region beg end)))
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(defun menu-bar-enable-clipboard ()
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"Make CUT, PASTE and COPY (keys and menu bar items) use the clipboard.
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Do the same for the keys of the same name."
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(interactive)
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;; We can't use constant list structure here because it becomes pure,
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;; and because it gets modified with cache data.
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(define-key menu-bar-edit-menu [paste]
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(cons "Paste" 'clipboard-yank))
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(define-key menu-bar-edit-menu [copy]
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(cons "Copy" 'clipboard-kill-ring-save))
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(define-key menu-bar-edit-menu [cut]
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(cons "Cut" 'clipboard-kill-region))
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(define-key global-map [f20] 'clipboard-kill-region)
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(define-key global-map [f16] 'clipboard-kill-ring-save)
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(define-key global-map [f18] 'clipboard-yank)
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;; X11R6 versions
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(define-key global-map [cut] 'clipboard-kill-region)
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(define-key global-map [copy] 'clipboard-kill-ring-save)
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(define-key global-map [paste] 'clipboard-yank))
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;;; Menu support
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(defvar menu-bar-custom-menu (make-sparse-keymap "Customize"))
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(define-key menu-bar-custom-menu [customize-apropos-groups]
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'("Apropos Groups..." . customize-apropos-groups))
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(define-key menu-bar-custom-menu [customize-apropos-faces]
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'("Apropos Faces..." . customize-apropos-faces))
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(define-key menu-bar-custom-menu [customize-apropos-options]
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'("Apropos Options..." . customize-apropos-options))
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(define-key menu-bar-custom-menu [customize-apropos]
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'("Apropos..." . customize-apropos))
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(define-key menu-bar-custom-menu [separator-2]
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'("--"))
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(define-key menu-bar-custom-menu [customize-group]
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'("Specific Group..." . customize-group))
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(define-key menu-bar-custom-menu [customize-face]
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'("Specific Face..." . customize-face))
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(define-key menu-bar-custom-menu [customize-option]
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'("Specific Option..." . customize-option))
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(define-key menu-bar-custom-menu [separator-3]
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'("--"))
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(define-key menu-bar-custom-menu [customize-browse]
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'("Browse Customization Groups" . customize-browse))
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(define-key menu-bar-custom-menu [customize]
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'("Top-level Customization Group" . customize))
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;; Options menu
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(defvar menu-bar-options-menu (make-sparse-keymap "Global Options"))
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(defmacro menu-bar-make-toggle (name variable doc message &rest body)
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`(progn
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(defun ,name ()
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,(concat doc ".")
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(interactive)
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(if ,(if body `(progn . ,body)
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`(setq ,variable (not ,variable)))
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(message ,message "enabled")
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(message ,message "disabled")))
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'(,doc . ,name)))
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(define-key menu-bar-options-menu [debug-on-quit]
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(menu-bar-make-toggle toggle-debug-on-quit debug-on-quit
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"Toggle Debug on Quit" "Debug on Quit %s"))
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(define-key menu-bar-options-menu [debug-on-error]
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(menu-bar-make-toggle toggle-debug-on-error debug-on-error
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"Toggle Debug on Error" "Debug on Error %s"))
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(define-key menu-bar-options-menu [options-separator]
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'("--"))
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(define-key menu-bar-options-menu [save-place]
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(menu-bar-make-toggle toggle-save-place-globally save-place
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"Toggle Saving Place in Files between Sessions"
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"Saving place in files %s"
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(setq-default save-place (not (default-value save-place)))))
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(define-key menu-bar-options-menu [uniquify]
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(menu-bar-make-toggle toggle-uniquify-buffer-names uniquify-buffer-name-style
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"Toggle Directory Names in Buffer Names"
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"Directory name in buffer names (uniquify) %s"
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(require 'uniquify)
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(setq uniquify-buffer-name-style
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(if (not uniquify-buffer-name-style)
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'forward))))
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(define-key menu-bar-options-menu [transient-mark-mode]
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(menu-bar-make-toggle toggle-transient-mark-mode transient-mark-mode
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"Toggle Transient Mark Mode (highlights region)"
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"Transient Mark mode %s"))
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(define-key menu-bar-options-menu [toggle-auto-compression]
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'("Toggle Automatic File De/compression" . auto-compression-mode))
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(define-key menu-bar-options-menu [auto-fill-mode]
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'("Toggle Auto Fill (word wrap) in Text modes"
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. toggle-text-mode-auto-fill))
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(define-key menu-bar-options-menu [toggle-global-lazy-font-lock-mode]
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(menu-bar-make-toggle toggle-global-lazy-font-lock-mode nil
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"Toggle Global Font Lock (highlights syntax)"
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"Global Font Lock mode %s"
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;; Make sure a support mode is used;
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||
;; otherwise Font Lock will be too slow.
|
||
(require 'font-lock)
|
||
(if (not global-font-lock-mode)
|
||
(or font-lock-support-mode
|
||
(setq font-lock-support-mode 'lazy-lock-mode)))
|
||
(global-font-lock-mode)))
|
||
|
||
(defvar menu-bar-describe-menu (make-sparse-keymap "Describe"))
|
||
|
||
(define-key menu-bar-describe-menu [describe-variable]
|
||
'("Describe Variable..." . describe-variable))
|
||
(define-key menu-bar-describe-menu [describe-function]
|
||
'("Describe Function..." . describe-function))
|
||
(define-key menu-bar-describe-menu [describe-key]
|
||
'("Describe Key..." . describe-key))
|
||
(define-key menu-bar-describe-menu [list-keybindings]
|
||
'("List Key Bindings" . describe-bindings))
|
||
(define-key menu-bar-describe-menu [apropos-variables]
|
||
'("Apropos Variables..." . apropos-variable))
|
||
(define-key menu-bar-describe-menu [apropos-commands]
|
||
'("Apropos Commands..." . apropos-command))
|
||
(define-key menu-bar-describe-menu [describe-mode]
|
||
'("Describe Buffer Modes" . describe-mode))
|
||
|
||
(defvar menu-bar-manuals-menu (make-sparse-keymap "Manuals"))
|
||
|
||
(define-key menu-bar-manuals-menu [man]
|
||
'("Read Man Page..." . manual-entry))
|
||
(define-key menu-bar-manuals-menu [sep2]
|
||
'("--"))
|
||
(define-key menu-bar-manuals-menu [key]
|
||
'("Find Key in Manual" . Info-goto-emacs-key-command-node))
|
||
(define-key menu-bar-manuals-menu [command]
|
||
'("Find Command in Manual" . Info-goto-emacs-command-node))
|
||
(define-key menu-bar-manuals-menu [info]
|
||
'("Browse Manuals with Info" . info))
|
||
(define-key menu-bar-manuals-menu [sep1]
|
||
'("--"))
|
||
(define-key menu-bar-manuals-menu [emacs-faq]
|
||
'("Emacs FAQ" . view-emacs-FAQ))
|
||
(define-key menu-bar-manuals-menu [emacs-news]
|
||
'("Emacs News" . view-emacs-news))
|
||
|
||
(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 [sep2]
|
||
'("--"))
|
||
(define-key menu-bar-help-menu [finder-by-keyword]
|
||
'("Find Emacs Packages..." . finder-by-keyword))
|
||
(define-key menu-bar-help-menu [describe]
|
||
(cons "Describe" menu-bar-describe-menu))
|
||
(define-key menu-bar-help-menu [manuals]
|
||
(cons "Manuals" menu-bar-manuals-menu))
|
||
(define-key menu-bar-help-menu [emacs-tutorial]
|
||
'("Emacs Tutorial" . help-with-tutorial))
|
||
(define-key menu-bar-help-menu [sep1]
|
||
'("--"))
|
||
(define-key menu-bar-help-menu [options]
|
||
(cons "Options" menu-bar-options-menu))
|
||
(define-key menu-bar-help-menu [customize]
|
||
(cons "Customize" menu-bar-custom-menu))
|
||
|
||
(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)))
|
||
(and (not (window-minibuffer-p (frame-selected-window menu-updating-frame)))
|
||
(> count 1))))
|
||
|
||
(put 'kill-this-buffer 'menu-enable '(kill-this-buffer-enabled-p))
|
||
|
||
(put 'save-buffer 'menu-enable
|
||
'(and (buffer-modified-p)
|
||
(not (window-minibuffer-p (frame-selected-window menu-updating-frame)))))
|
||
|
||
(put 'write-file 'menu-enable
|
||
'(not (window-minibuffer-p (frame-selected-window menu-updating-frame))))
|
||
|
||
(put 'find-file 'menu-enable
|
||
'(not (window-minibuffer-p (frame-selected-window menu-updating-frame))))
|
||
|
||
(put 'dired 'menu-enable
|
||
'(not (window-minibuffer-p (frame-selected-window menu-updating-frame))))
|
||
|
||
(put 'insert-file 'menu-enable
|
||
'(not (window-minibuffer-p (frame-selected-window menu-updating-frame))))
|
||
|
||
(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
|
||
'(delete-frame-enabled-p))
|
||
|
||
(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)))
|
||
|
||
(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)))
|
||
|
||
(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))
|
||
|
||
;; 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 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)
|
||
(make-frame-visible last-command-event)
|
||
(raise-frame last-command-event)
|
||
(select-frame last-command-event))
|
||
|
||
(defun menu-bar-update-buffers-1 (elt)
|
||
(cons (format
|
||
(format "%%%ds %%s%%s %%s" menu-bar-update-buffers-maxbuf)
|
||
(cdr elt)
|
||
(if (buffer-modified-p (car elt))
|
||
"*" " ")
|
||
(save-excursion
|
||
(set-buffer (car elt))
|
||
(if buffer-read-only "%" " "))
|
||
(let ((file
|
||
(or (buffer-file-name (car elt))
|
||
(save-excursion
|
||
(set-buffer (car elt))
|
||
list-buffers-directory)
|
||
"")))
|
||
(setq file (or (file-name-directory file)
|
||
""))
|
||
(if (> (length file) 20)
|
||
(setq file (concat "..." (substring file -17))))
|
||
file))
|
||
(car elt)))
|
||
|
||
(defvar menu-bar-buffers-menu-list-buffers-entry nil)
|
||
|
||
(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))
|
||
(maxlen 0)
|
||
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* ((buffer-list
|
||
(mapcar 'list buffers))
|
||
tail
|
||
(menu-bar-update-buffers-maxbuf 0)
|
||
alist
|
||
head)
|
||
;; Put into each element of buffer-list
|
||
;; the name for actual display,
|
||
;; perhaps truncated in the middle.
|
||
(setq tail buffer-list)
|
||
(while tail
|
||
(let ((name (buffer-name (car (car tail)))))
|
||
(setcdr (car tail)
|
||
(if (> (length name) 27)
|
||
(concat (substring name 0 12)
|
||
"..."
|
||
(substring name -12))
|
||
name)))
|
||
(setq tail (cdr tail)))
|
||
;; Compute the maximum length of any name.
|
||
(setq tail buffer-list)
|
||
(while tail
|
||
(or (eq ?\ (aref (cdr (car tail)) 0))
|
||
(setq menu-bar-update-buffers-maxbuf
|
||
(max menu-bar-update-buffers-maxbuf
|
||
(length (cdr (car tail))))))
|
||
(setq tail (cdr tail)))
|
||
;; Set ALIST to an alist of the form
|
||
;; ITEM-STRING . BUFFER
|
||
(setq tail buffer-list)
|
||
(while tail
|
||
(let ((elt (car tail)))
|
||
(or (eq ?\ (aref (cdr elt) 0))
|
||
(setq alist (cons
|
||
(menu-bar-update-buffers-1 elt)
|
||
alist)))
|
||
(and alist (> (length (car (car alist))) maxlen)
|
||
(setq maxlen (length (car (car alist))))))
|
||
(setq tail (cdr tail)))
|
||
(setq alist (nreverse alist))
|
||
;; Make the menu item for list-buffers
|
||
;; or reuse the one we already have.
|
||
;; The advantage in reusing one
|
||
;; is that it already has the keyboard equivalent
|
||
;; cached, so we save the time to look that up again.
|
||
(or menu-bar-buffers-menu-list-buffers-entry
|
||
(setq menu-bar-buffers-menu-list-buffers-entry
|
||
(cons
|
||
'list-buffers
|
||
(cons
|
||
""
|
||
'list-buffers))))
|
||
;; Update the item string for menu's new width.
|
||
(setcar (cdr menu-bar-buffers-menu-list-buffers-entry)
|
||
(concat (make-string (max (- (/ maxlen 2) 8) 0)
|
||
?\ )
|
||
"List All Buffers"))
|
||
;; Now make the actual list of items,
|
||
;; ending with the list-buffers item.
|
||
(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 menu-bar-buffers-menu-list-buffers-entry)))))
|
||
|
||
|
||
;; Make a Frames menu if we have more than one frame.
|
||
(if (cdr frames)
|
||
(let ((name (concat (make-string (max (- (/ maxlen 2) 3) 0)
|
||
?\ )
|
||
"Frames"))
|
||
(frames-menu
|
||
(cons 'keymap
|
||
(cons "Select Frame"
|
||
(mapcar '(lambda (frame)
|
||
(nconc (list frame
|
||
(cdr (assq 'name
|
||
(frame-parameters frame)))
|
||
(cons nil nil))
|
||
'menu-bar-select-frame))
|
||
frames)))))
|
||
;; Put it underneath the Buffers menu.
|
||
(setq buffers-menu (cons (cons 'frames (cons name frames-menu))
|
||
buffers-menu))))
|
||
(if buffers-menu
|
||
(setq buffers-menu (cons 'keymap 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) ""))))))
|
||
|
||
;;; Set up a menu bar menu for the minibuffer.
|
||
|
||
(mapcar
|
||
(function
|
||
(lambda (map)
|
||
(define-key map [menu-bar minibuf]
|
||
(cons "Minibuf" (make-sparse-keymap "Minibuf")))))
|
||
(list minibuffer-local-ns-map
|
||
minibuffer-local-must-match-map
|
||
minibuffer-local-isearch-map
|
||
minibuffer-local-map
|
||
minibuffer-local-completion-map))
|
||
|
||
(mapcar
|
||
(function
|
||
(lambda (map)
|
||
(define-key map [menu-bar minibuf ?\?]
|
||
'("List Completions" . minibuffer-completion-help))
|
||
(define-key map [menu-bar minibuf space]
|
||
'("Complete Word" . minibuffer-complete-word))
|
||
(define-key map [menu-bar minibuf tab]
|
||
'("Complete" . minibuffer-complete))
|
||
))
|
||
(list minibuffer-local-must-match-map
|
||
minibuffer-local-completion-map))
|
||
|
||
(mapcar
|
||
(function
|
||
(lambda (map)
|
||
(define-key map [menu-bar minibuf quit]
|
||
'("Quit" . keyboard-escape-quit))
|
||
(define-key map [menu-bar minibuf return]
|
||
'("Enter" . exit-minibuffer))
|
||
))
|
||
(list minibuffer-local-ns-map
|
||
minibuffer-local-must-match-map
|
||
minibuffer-local-isearch-map
|
||
minibuffer-local-map
|
||
minibuffer-local-completion-map))
|
||
|
||
(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
|