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596 lines
21 KiB
EmacsLisp
596 lines
21 KiB
EmacsLisp
;;; menu-bar.el --- define a default menu bar.
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;; Author: RMS
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;; Keywords: internal
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;; Copyright (C) 1993, 1994, 1995 Free Software Foundation, Inc.
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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
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;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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;;; Code:
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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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(setq menu-bar-final-items '(help))
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(define-key global-map [menu-bar help] (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 [calendar] '("Display Calendar" . calendar))
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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-menu]
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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 [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 [ediff]
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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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(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-tools-menu [ps-print-region]
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'("Postscript Print Region" . ps-print-region-with-faces))
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(define-key menu-bar-tools-menu [ps-print-buffer]
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'("Postscript Print Buffer" . ps-print-buffer-with-faces))
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(define-key menu-bar-tools-menu [print-region]
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'("Print Region" . print-region))
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(define-key menu-bar-tools-menu [print-buffer]
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'("Print Buffer" . print-buffer))
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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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(define-key menu-bar-files-menu [delete-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))))
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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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;; This is just one element of the ediff menu--the first.
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(define-key menu-bar-ediff-menu [window]
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'("This Window And Next Window" . compare-windows))
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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 noninteractive-repeat-search-forward ()
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"Search forward for the previous search string."
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(interactive)
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(search-forward (car search-ring)))
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(defun noninteractive-repeat-search-backward ()
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"Search backward for the previous search string."
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(interactive)
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(search-backward (car search-ring)))
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(defun noninteractive-repeat-re-search-forward ()
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"Search forward for the previous regular expression."
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(interactive)
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(re-search-forward (car regexp-search-ring)))
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(defun noninteractive-repeat-re-search-backward ()
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"Search backward for the previous regular expression."
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(interactive)
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(re-search-backward (car regexp-search-ring)))
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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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(put 'find-tag 'menu-enable 'tags-table-list)
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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 [nonincremental-repeat-re-search-back]
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'("Repeat Regexp Backwards" . nonincremental-repeat-re-search-backward))
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(define-key menu-bar-search-menu [nonincremental-repeat-search-back]
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'("Repeat Backwards" . nonincremental-repeat-search-backward))
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(define-key menu-bar-search-menu [nonincremental-repeat-re-search-fwd]
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'("Repeat Regexp" . nonincremental-repeat-re-search-forward))
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(define-key menu-bar-search-menu [nonincremental-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-back]
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'("Regexp Search Backwards" . nonincremental-re-search-backward))
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(define-key menu-bar-search-menu [search-back]
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'("Search Backwards" . nonincremental-search-backward))
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(define-key menu-bar-search-menu [re-search-fwd]
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'("Regexp Search" . nonincremental-re-search-forward))
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(define-key menu-bar-search-menu [search-fwd]
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'("Search" . nonincremental-search-forward))
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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 'mark-active)
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(put 'kill-region 'menu-enable 'mark-active)
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(put 'menu-bar-kill-ring-save 'menu-enable 'mark-active)
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(put 'yank 'menu-enable '(x-selection-exists-p))
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(put 'yank-menu 'menu-enable '(cdr yank-menu))
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(put 'delete-region 'menu-enable '(and mark-active
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(not (mouse-region-match))))
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(put 'undo 'menu-enable '(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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(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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(define-key menu-bar-help-menu [emacs-version]
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'("Show Version" . emacs-version))
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(define-key menu-bar-help-menu [report-emacs-bug]
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'("Send Bug Report" . report-emacs-bug))
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(define-key menu-bar-help-menu [emacs-tutorial]
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'("Emacs Tutorial" . help-with-tutorial))
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(define-key menu-bar-help-menu [man] '("Man..." . manual-entry))
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(define-key menu-bar-help-menu [describe-variable]
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'("Describe Variable..." . describe-variable))
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(define-key menu-bar-help-menu [describe-function]
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'("Describe Function..." . describe-function))
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(define-key menu-bar-help-menu [describe-key]
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'("Describe Key..." . describe-key))
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(define-key menu-bar-help-menu [list-keybindings]
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'("List Keybindings" . describe-bindings))
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(define-key menu-bar-help-menu [command-apropos]
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'("Command Apropos..." . command-apropos))
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(define-key menu-bar-help-menu [describe-mode]
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'("Describe Mode" . describe-mode))
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(define-key menu-bar-help-menu [info] '("Browse Manuals" . info))
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(define-key menu-bar-help-menu [emacs-faq] '("Emacs FAQ" . view-emacs-FAQ))
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(define-key menu-bar-help-menu [emacs-news] '("Emacs News" . view-emacs-news))
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(defun kill-this-buffer () ; for the menubar
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"Kills the current buffer."
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(interactive)
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(kill-buffer (current-buffer)))
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(defun kill-this-buffer-enabled-p ()
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(let ((count 0)
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(buffers (buffer-list)))
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(while buffers
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(or (string-match "^ " (buffer-name (car buffers)))
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(setq count (1+ count)))
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(setq buffers (cdr buffers)))
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(> count 1)))
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(put 'save-buffer 'menu-enable '(buffer-modified-p))
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(put 'revert-buffer 'menu-enable
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'(or revert-buffer-function revert-buffer-insert-file-contents-function
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(and (buffer-file-name)
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(or (buffer-modified-p)
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(not (verify-visited-file-modtime (current-buffer)))))))
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;; Permit deleting frame if it would leave a visible or iconified frame.
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(put 'delete-frame 'menu-enable
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'(let ((frames (frame-list))
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(count 0))
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(while frames
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(if (cdr (assq 'visibility (frame-parameters (car frames))))
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(setq count (1+ count)))
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(setq frames (cdr frames)))
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(> count 1)))
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(put 'kill-this-buffer 'menu-enable '(kill-this-buffer-enabled-p))
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(put 'advertised-undo 'menu-enable
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'(and (not (eq t buffer-undo-list))
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(if (eq last-command 'undo)
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(and (boundp 'pending-undo-list)
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pending-undo-list)
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buffer-undo-list)))
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(defvar yank-menu-length 20
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"*Maximum length to display in the yank-menu.")
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(defun menu-bar-update-yank-menu (string old)
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(let ((front (car (cdr yank-menu)))
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(menu-string (if (<= (length string) yank-menu-length)
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string
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(concat
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(substring string 0 (/ yank-menu-length 2))
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"..."
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(substring string (- (/ yank-menu-length 2)))))))
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;; If we're supposed to be extending an existing string, and that
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;; string really is at the front of the menu, then update it in place.
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(if (and old (or (eq old (car front))
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(string= old (car front))))
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(progn
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(setcar front string)
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(setcar (cdr front) menu-string))
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(setcdr yank-menu
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(cons
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(cons string (cons menu-string 'menu-bar-select-yank))
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(cdr yank-menu)))))
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(if (> (length (cdr yank-menu)) kill-ring-max)
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(setcdr (nthcdr kill-ring-max yank-menu) nil)))
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(defun menu-bar-select-yank ()
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(interactive "*")
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(push-mark (point))
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(insert last-command-event))
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(define-key global-map [menu-bar buffer] '("Buffers" . menu-bar-buffers))
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(defalias 'menu-bar-buffers (make-sparse-keymap "Buffers"))
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(defvar 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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(defvar list-buffers-directory nil)
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(defvar menu-bar-update-buffers-maxbuf)
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(defun menu-bar-select-buffer ()
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(interactive)
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(switch-to-buffer last-command-event))
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(defun menu-bar-select-frame ()
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(interactive)
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(make-frame-visible last-command-event)
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(raise-frame last-command-event)
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(select-frame last-command-event))
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(defun menu-bar-update-buffers-1 (elt)
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(cons (format
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(format "%%%ds %%s%%s %%s" menu-bar-update-buffers-maxbuf)
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(cdr elt)
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(if (buffer-modified-p (car elt))
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"*" " ")
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(save-excursion
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(set-buffer (car elt))
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(if buffer-read-only "%" " "))
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(let ((file
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(or (buffer-file-name (car elt))
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(save-excursion
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(set-buffer (car elt))
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list-buffers-directory)
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"")))
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(setq file (or (file-name-directory file)
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""))
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(if (> (length file) 20)
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(setq file (concat "..." (substring file -17))))
|
||
file))
|
||
(car elt)))
|
||
|
||
(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* ((buffer-list
|
||
(mapcar 'list buffers))
|
||
tail
|
||
(menu-bar-update-buffers-maxbuf 0)
|
||
(maxlen 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))
|
||
(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
|