1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
;;; mb-depth.el --- Indicate minibuffer-depth in prompt
;;
;; Copyright (C) 2006, 2007 Free Software Foundation, Inc.
;;
;; Author: Miles Bader <miles@gnu.org>
;; Keywords: convenience
;; 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 3, or (at your option)
;; any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs; see the file COPYING. If not, write to the
;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
;; Boston, MA 02110-1301, USA.
;;; Commentary:
;;
;; Defines the minor mode `minibuffer-indicate-depth-mode'.
;;
;; When active, any recursive use of the minibuffer will show
;; the recursion depth in the minibuffer prompt. This is only
;; useful if `enable-recursive-minibuffers' is non-nil.
;;; Code:
(defvar minibuf-depth-indicator-function nil
"If non-nil, function to set up the minibuffer depth indicator.
It is called with one argument, the minibuffer depth,
and must return a string.")
;; An overlay covering the prompt. This is a buffer-local variable in
;; each affected minibuffer.
;;
(defvar minibuf-depth-overlay)
(make-variable-buffer-local 'minibuf-depth-overlay)
;; This function goes on minibuffer-setup-hook
(defun minibuf-depth-setup-minibuffer ()
"Set up a minibuffer for `minibuffer-indicate-depth-mode'.
The prompt should already have been inserted."
(when (> (minibuffer-depth) 1)
(setq minibuf-depth-overlay (make-overlay (point-min) (1+ (point-min))))
(overlay-put minibuf-depth-overlay 'before-string
(if minibuf-depth-indicator-function
(funcall minibuf-depth-indicator-function (minibuffer-depth))
(propertize (format "[%d]" (minibuffer-depth)) 'face 'highlight)))
(overlay-put minibuf-depth-overlay 'evaporate t)))
;;;###autoload
(define-minor-mode minibuffer-indicate-depth-mode
"Toggle Minibuffer Indicate Depth mode.
When active, any recursive use of the minibuffer will show
the recursion depth in the minibuffer prompt. This is only
useful if `enable-recursive-minibuffers' is non-nil.
With prefix argument ARG, turn on if positive, otherwise off.
Returns non-nil if the new state is enabled."
:global t
:group 'minibuffer
(if minibuffer-indicate-depth-mode
;; Enable the mode
(add-hook 'minibuffer-setup-hook 'minibuf-depth-setup-minibuffer)
;; Disable the mode
(remove-hook 'minibuffer-setup-hook 'minibuf-depth-setup-minibuffer)))
(provide 'mb-depth)
;; arch-tag: 50224089-5bf5-46f8-803d-18f018c5eacf
;;; mb-depth.el ends here
|
