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Diffstat (limited to 'lisp/rsz-mini.el')
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diff --git a/lisp/rsz-mini.el b/lisp/rsz-mini.el deleted file mode 100644 index da5f4b478ba..00000000000 --- a/lisp/rsz-mini.el +++ /dev/null @@ -1,254 +0,0 @@ -;;; rsz-mini.el --- dynamically resize minibuffer to display entire contents - -;; Copyright (C) 1990, 1993, 1994, 1995 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 - -;; This file is part of GNU Emacs. - -;; GNU Emacs is free software; you can redistribute it and/or modify -;; it under the terms of the GNU General Public License as published by -;; the Free Software Foundation; either version 2, or (at your option) -;; any later version. - -;; GNU Emacs is distributed in the hope that it will be useful, -;; but WITHOUT ANY WARRANTY; without even the implied warranty of -;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -;; GNU General Public License for more details. - -;; You should have received a copy of the GNU General Public License -;; along with GNU Emacs; see the file COPYING. If not, write to the -;; Free Software Foundation, 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 -;; 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 enable or disable this mode, use M-x resize-minibuffer-mode. - -;;; Code: - - -;;;###autoload -(defvar resize-minibuffer-mode nil - "*If non-`nil', resize the minibuffer so its entire contents are visible.") - -;;;###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.") - -;;;###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.") - -;;;###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.") - -;;;###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.") - -;;;###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.") - -;; 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 -(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))))) - ;; Checking for resize-minibuffer-frame is done outside the cond - ;; predicate because that should always be t if this is a minibuffer - ;; frame; it just shouldn't do anything if this flag is nil. - (and resize-minibuffer-frame - (progn - ;; Can't trust the height stored 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-hook 'post-command-hook) - (add-hook 'post-command-hook 'resize-minibuffer-frame 'append t) - - (make-local-hook 'minibuffer-exit-hook) - (add-hook 'minibuffer-exit-hook 'resize-minibuffer-frame-restore - nil t) - - (resize-minibuffer-frame)))) - (t - (make-local-variable 'post-command-hook) - ;; Copy this because add-hook modifies the list structure. - (setq post-command-hook (copy-sequence 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) - - (resize-minibuffer-window)))))) - -(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)))))) - - -;; Resize the minibuffer window to contain the minibuffer's contents. -(defun resize-minibuffer-window () - (and (eq (selected-window) (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 - ((not (eq (minibuffer-window) (selected-window)))) - ((> (window-height) 1) - (enlarge-window (- 1 (window-height))) - (sit-for 0)))) - - -;; 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 (window-frame (minibuffer-window)) (frame-width) lines)) - ((and resize-minibuffer-frame-exactly - (> height resize-minibuffer-frame-original-height) - (< lines height)) - (set-frame-size (window-frame (minibuffer-window)) - (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 (window-frame (minibuffer-window)) - (frame-width) - resize-minibuffer-frame-original-height)) - - -(provide 'rsz-mini) - -(add-hook 'minibuffer-setup-hook 'resize-minibuffer-setup) -(resize-minibuffer-mode) - -;; rsz-mini.el ends here |