;;; rsz-mini.el --- dynamically resize minibuffer to display entire contents
-;;; Copyright (C) 1990, 1993, 1994 Free Software Foundation, Inc.
+;; Copyright (C) 1990, 1993-1995, 1997 Free Software Foundation, Inc.
-;;; Author: Noah Friedman <friedman@prep.ai.mit.edu>
-;;; Roland McGrath <roland@prep.ai.mit.edu>
-;;; Maintainer: friedman@prep.ai.mit.edu
-;;; Keywords: minibuffer, window, frame, display
-;;; Status: Known to work in FSF GNU Emacs 19.26 and later.
-;;; $Id: rsz-mini.el,v 1.4 1994/06/22 22:14:28 friedman Exp friedman $
+;; Author: Noah Friedman <friedman@splode.com>
+;; Roland McGrath <roland@gnu.org>
+;; Maintainer: Noah Friedman <friedman@splode.com>
+;; Keywords: minibuffer, window, frame, display
+
+;; $Id: rsz-mini.el,v 1.2 1999/09/13 13:00:24 gerd Exp $
;; This file is part of GNU Emacs.
;; 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.
+;; along with GNU Emacs; see the file COPYING. If not, write to the
+;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+;; Boston, MA 02111-1307, USA.
;;; Commentary:
-;;; This package allows the entire contents (or as much as possible) of the
-;;; minibuffer to be visible at once when typing. As the end of a line is
-;;; reached, the minibuffer will resize itself. When the user is done
-;;; typing, the minibuffer will return to its original size.
-
-;;; In window systems where it is possible to have a frame in which the
-;;; minibuffer is the only window, the frame itself can be resized. In FSF
-;;; GNU Emacs 19.22 and earlier, the frame may not be properly returned to
-;;; its original size after it ceases to be active because
-;;; `minibuffer-exit-hook' didn't exist until version 19.23.
-;;;
-;;; Prior to Emacs 19.26, minibuffer-exit-hook wasn't called after exiting
-;;; from the minibuffer by hitting the quit char. That meant that the
-;;; frame size restoration function wasn't being called in that case. In
-;;; 19.26 or later, minibuffer-exit-hook should be called anyway.
-
-;;; Note that the minibuffer and echo area are not the same! They simply
-;;; happen to occupy roughly the same place on the frame. Messages put in
-;;; the echo area will not cause any resizing by this package.
-
-;;; This package is considered a minor mode but it doesn't put anything in
-;;; minor-mode-alist because this mode is specific to the minibuffer, which
-;;; has no mode line.
-
-;;; To use this package, put the following in your .emacs:
-;;;
-;;; (autoload 'resize-minibuffer-mode "rsz-mini" nil t)
-;;;
-;;; Invoking the command `resize-minibuffer-mode' will then enable this mode.
-;;; Simply loading this file will also enable it.
+;; This package is obsolete. Emacs now resizes mini-windows
+;; automatically.
;;; Code:
\f
-;;;###autoload
-(defvar resize-minibuffer-mode nil
- "*If non-`nil', resize the minibuffer so its entire contents are visible.")
+(defgroup resize-minibuffer nil
+ "This customization group is obsolete."
+ :group 'frames)
;;;###autoload
-(defvar resize-minibuffer-window-max-height nil
- "*Maximum size the minibuffer window is allowed to become.
-If less than 1 or not a number, the limit is the height of the frame in
-which the active minibuffer window resides.")
+(defcustom resize-minibuffer-mode nil
+ "*This variable is obsolete."
+ :type 'boolean
+ :group 'resize-minibuffer
+ :require 'rsz-mini)
;;;###autoload
-(defvar resize-minibuffer-window-exactly t
- "*Allow making minibuffer exactly the size to display all its contents.
-If `nil', the minibuffer window can temporarily increase in size but
-never get smaller while it is active. Any other value allows exact
-resizing.")
+(defcustom resize-minibuffer-window-max-height nil
+ "*This variable is obsolete."
+ :type '(choice (const nil) integer)
+ :group 'resize-minibuffer)
;;;###autoload
-(defvar resize-minibuffer-frame nil
- "*Allow changing the frame height of minibuffer frames.
-If non-`nil' and the active minibuffer is the sole window in its frame,
-allow changing the frame height.")
+(defcustom resize-minibuffer-window-exactly t
+ "*This variable is obsolete."
+ :type 'boolean
+ :group 'resize-minibuffer)
;;;###autoload
-(defvar resize-minibuffer-frame-max-height nil
- "*Maximum size the minibuffer frame is allowed to become.
-If less than 1 or not a number, there is no limit.")
+(defcustom resize-minibuffer-frame nil
+ "*This variable is obsolete."
+ :type 'boolean
+ :group 'resize-minibuffer)
;;;###autoload
-(defvar resize-minibuffer-frame-exactly t
- "*Allow making minibuffer frame exactly the size to display all its contents.
-If `nil', the minibuffer frame can temporarily increase in size but
-never get smaller while it is active. Any other value allows exact
-resizing.")
+(defcustom resize-minibuffer-frame-max-height nil
+ "*This variable is obsolete.")
-;; Variable used to store the height of the minibuffer frame
-;; on entry, so it can be restored on exit. It is made local before it is
-;; modified. Do not use it yourself.
-(defvar resize-minibuffer-frame-original-height nil)
+;;;###autoload
+(defcustom resize-minibuffer-frame-exactly t
+ "*This variable is obsolete."
+ :type 'boolean
+ :group 'resize-minibuffer)
\f
;;;###autoload
(defun resize-minibuffer-mode (&optional prefix)
- "Enable or disable resize-minibuffer mode.
-A negative prefix argument disables this mode. A positive argument or
-argument of 0 enables it.
-
-When this minor mode is enabled, the minibuffer is dynamically resized to
-contain the entire region of text put in it as you type.
-
-The variable `resize-minibuffer-mode' is set to t or nil depending on
-whether this mode is active or not.
-
-The maximum height to which the minibuffer can grow is controlled by the
-variable `resize-minibuffer-window-max-height'.
-
-The variable `resize-minibuffer-window-exactly' determines whether the
-minibuffer window should ever be shrunk to make it no larger than needed to
-display its contents.
-
-When using a window system, it is possible for a minibuffer to be the sole
-window in a frame. Since that window is already its maximum size, the only
-way to make more text visible at once is to increase the size of the frame.
-The variable `resize-minibuffer-frame' controls whether this should be
-done. The variables `resize-minibuffer-frame-max-height' and
-`resize-minibuffer-frame-exactly' are analogous to their window
-counterparts."
- (interactive "p")
- (or prefix (setq prefix 0))
- (cond
- ((>= prefix 0)
- (setq resize-minibuffer-mode t))
- (t
- (setq resize-minibuffer-mode nil))))
-
-(defun resize-minibuffer-setup ()
- (cond
- (resize-minibuffer-mode
- (cond
- ((and window-system
- (eq 'only (cdr (assq 'minibuffer (frame-parameters)))))
- (and resize-minibuffer-frame
- (progn
- ;; Squirrel away the current height of the frame so we can
- ;; restore it later. We do this rather than trusting the
- ;; value in minibuffer-frame-alist since the frame can be
- ;; resized by the window manager and that variable isn't updated.
- (make-local-variable 'resize-minibuffer-frame-original-height)
- (setq resize-minibuffer-frame-original-height (frame-height))
- (make-local-variable 'minibuffer-exit-hook)
- (add-hook 'minibuffer-exit-hook 'resize-minibuffer-frame-restore)
- (make-local-variable 'post-command-hook)
- (add-hook 'post-command-hook 'resize-minibuffer-frame 'append))))
- (t
- (make-local-variable 'post-command-hook)
- (add-hook 'post-command-hook 'resize-minibuffer-window 'append)
- (make-local-variable 'minibuffer-exit-hook)
- (add-hook 'minibuffer-exit-hook 'resize-minibuffer-window-restore))))))
-
-(defun resize-minibuffer-count-window-lines (&optional start end)
- "Return number of window lines occupied by text in region.
-The number of window lines may be greater than the number of actual lines
-in the buffer if any wrap on the display due to their length.
-
-Optional arguments START and END default to point-min and point-max,
-respectively."
- (or start (setq start (point-min)))
- (or end (setq end (point-max)))
- (if (= start end)
- 0
- (save-excursion
- (save-restriction
- (widen)
- (narrow-to-region start end)
- (goto-char start)
- (vertical-motion (buffer-size))))))
-
-\f
-;; Resize the minibuffer window to contain the minibuffer's contents.
-;; The minibuffer window must be current.
-(defun resize-minibuffer-window ()
- (let ((height (window-height))
- (lines (1+ (resize-minibuffer-count-window-lines))))
- (and (numberp resize-minibuffer-window-max-height)
- (> resize-minibuffer-window-max-height 0)
- (setq lines (min lines resize-minibuffer-window-max-height)))
- (or (if resize-minibuffer-window-exactly
- (= lines height)
- (<= lines height))
- (enlarge-window (- lines height)))))
-
-;; This resizes the minibuffer back to one line as soon as it is exited
-;; (e.g. when the user hits RET). This way, subsequent messages put in the
-;; echo area aren't cluttered with leftover minibuffer text.
-;; It should be called by minibuffer-exit-hook.
-;;
-;; Note that because it calls sit-for to force a screen update, strange
-;; things may happen in the minibuffer, such as unexpanded partial
-;; completions by complete.el showing their completion.
-;; If this bothers you, just redefine this function to do nothing, in, say,
-;; your after-load-alist. Perhaps there should be an option variable,
-;; but I don't know if there's really any demand for it.
-;; (Clobbering this definition is harmless because eventually emacs restores
-;; its idea of the minibuffer window size when the minibuffer isn't in use
-;; anyway; this is just a kludge because of the timing for that update).
-(defun resize-minibuffer-window-restore ()
- (cond
- ((> (window-height) 1)
- (enlarge-window (- 1 (window-height)))
- (sit-for 0))))
+ "This function is obsolete."
+ (interactive "P"))
-\f
-;; Resize the minibuffer frame to contain the minibuffer's contents.
-;; The minibuffer frame must be the current frame.
-(defun resize-minibuffer-frame ()
- (let ((height (frame-height))
- (lines (1+ (resize-minibuffer-count-window-lines))))
- (and (numberp resize-minibuffer-frame-max-height)
- (> resize-minibuffer-frame-max-height 0)
- (setq lines (min lines resize-minibuffer-frame-max-height)))
- (cond
- ((> lines height)
- (set-frame-size (selected-frame) (frame-width) lines))
- ((and resize-minibuffer-frame-exactly
- (> height resize-minibuffer-frame-original-height)
- (< lines height))
- (set-frame-size (selected-frame) (frame-width) lines)))))
-
-;; Restore the original height of the frame.
-;; resize-minibuffer-frame-original-height is set in
-;; resize-minibuffer-setup.
-(defun resize-minibuffer-frame-restore ()
- (set-frame-size (selected-frame)
- (frame-width)
- resize-minibuffer-frame-original-height))
-
-\f
(provide 'rsz-mini)
-(add-hook 'minibuffer-setup-hook 'resize-minibuffer-setup)
-(resize-minibuffer-mode)
-
;; rsz-mini.el ends here