;;; avoid.el --- make mouse pointer stay out of the way of editing
-;;; Copyright (C) 1993, 1994, 2000 Free Software Foundation, Inc.
+;; Copyright (C) 1993, 1994, 2000, 2002, 2003, 2004,
+;; 2005, 2006 Free Software Foundation, Inc.
;; Author: Boris Goldowsky <boris@gnu.org>
;; Keywords: mouse
;; 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.
+;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+;; Boston, MA 02110-1301, USA.
;;; Commentary:
;;
;; Bugs / Warnings / To-Do:
;;
-;; - Using this code does slow emacs down. "banish" mode shouldn't
+;; - Using this code does slow Emacs down. "banish" mode shouldn't
;; be too bad, and on my workstation even "animate" is reasonable.
;;
;; - It ought to find out where any overlapping frames are and avoid them,
(defcustom mouse-avoidance-nudge-dist 15
"*Average distance that mouse will be moved when approached by cursor.
-Only applies in mouse-avoidance-mode `jump' and its derivatives.
+Only applies in Mouse-Avoidance mode `jump' and its derivatives.
For best results make this larger than `mouse-avoidance-threshold'."
:type 'integer
:group 'avoid)
(defun mouse-avoidance-point-position ()
"Return the position of point as (FRAME X . Y).
-Analogous to mouse-position."
- (let* ((w (selected-window))
- (edges (window-edges w))
- (list
- (compute-motion (max (window-start w) (point-min)) ; start pos
- ;; window-start can be < point-min if the
- ;; latter has changed since the last redisplay
- '(0 . 0) ; start XY
- (point) ; stop pos
- (cons (window-width) (window-height)); stop XY: none
- (1- (window-width)) ; width
- (cons (window-hscroll w) 0) ; 0 may not be right?
- (selected-window))))
- ;; compute-motion returns (pos HPOS VPOS prevhpos contin)
- ;; we want: (frame hpos . vpos)
+Analogous to `mouse-position'."
+ (let ((edges (window-inside-edges))
+ (x-y (posn-x-y (posn-at-point))))
(cons (selected-frame)
- (cons (+ (car edges) (car (cdr list)))
- (+ (car (cdr edges)) (car (cdr (cdr list))))))))
+ (cons (+ (car edges)
+ (/ (car x-y) (frame-char-width)))
+ (+ (car (cdr edges))
+ (/ (cdr x-y) (frame-char-height)))))))
;(defun mouse-avoidance-point-position-test ()
; (interactive)
mouse-avoidance-threshold))))))
(defun mouse-avoidance-banish-destination ()
- "The position to which mouse-avoidance-mode `banish' moves the mouse.
+ "The position to which Mouse-Avoidance mode `banish' moves the mouse.
You can redefine this if you want the mouse banished to a different corner."
- (cons (1- (frame-width))
- 0))
+ (let* ((pos (window-edges)))
+ (cons (- (nth 2 pos) 2)
+ (nth 1 pos))))
(defun mouse-avoidance-banish-mouse ()
;; Put the mouse pointer in the upper-right corner of the current frame.
(t 0))))
(defun mouse-avoidance-nudge-mouse ()
- ;; Push the mouse a little way away, possibly animating the move
+ ;; Push the mouse a little way away, possibly animating the move.
;; For these modes, state keeps track of the total offset that we've
;; accumulated, and tries to keep it close to zero.
(let* ((cur (mouse-position))
(cur-frame (car cur))
(cur-pos (cdr cur))
+ (pos (window-edges))
+ (wleft (pop pos))
+ (wtop (pop pos))
+ (wright (pop pos))
+ (wbot (pop pos))
(deltax (mouse-avoidance-delta
(car cur-pos) (- (random mouse-avoidance-nudge-var)
(car mouse-avoidance-state))
mouse-avoidance-nudge-dist mouse-avoidance-nudge-var
- 0 (frame-width)))
+ wleft (1- wright)))
(deltay (mouse-avoidance-delta
(cdr cur-pos) (- (random mouse-avoidance-nudge-var)
(cdr mouse-avoidance-state))
mouse-avoidance-nudge-dist mouse-avoidance-nudge-var
- 0 (frame-height))))
+ wtop (1- wbot))))
(setq mouse-avoidance-state
(cons (+ (car mouse-avoidance-state) deltax)
(+ (cdr mouse-avoidance-state) deltay)))
(nth (random mouse-avoidance-n-pointer-shapes)
mouse-avoidance-pointer-shapes))
+(defun mouse-avoidance-ignore-p ()
+ (let ((mp (mouse-position)))
+ (or executing-kbd-macro ; don't check inside macro
+ (null (cadr mp)) ; don't move unless in an Emacs frame
+ (not (eq (car mp) (selected-frame)))
+ ;; Don't do anything if last event was a mouse event.
+ ;; FIXME: this code fails in the case where the mouse was moved
+ ;; since the last key-press but without generating any event.
+ (and (consp last-input-event)
+ (symbolp (car last-input-event))
+ (let ((modifiers (event-modifiers (car last-input-event))))
+ (or (memq (car last-input-event)
+ '(mouse-movement scroll-bar-movement
+ select-window switch-frame))
+ (memq 'click modifiers)
+ (memq 'double modifiers)
+ (memq 'triple modifiers)
+ (memq 'drag modifiers)
+ (memq 'down modifiers)))))))
+
(defun mouse-avoidance-banish-hook ()
- (if (and (not executing-kbd-macro) ; don't check inside macro
- (cadr (mouse-position)) ; don't move unless in an Emacs frame
- ;; Don't do anything if last event was a mouse event.
- (not (and (consp last-input-event)
- (symbolp (car last-input-event))
- (let ((modifiers (event-modifiers (car last-input-event))))
- (or (memq (car last-input-event)
- '(mouse-movement scroll-bar-movement))
- (memq 'click modifiers)
- (memq 'drag modifiers)
- (memq 'down modifiers))))))
+ (if (not (mouse-avoidance-ignore-p))
(mouse-avoidance-banish-mouse)))
(defun mouse-avoidance-exile-hook ()
;; For exile mode, the state is nil when the mouse is in its normal
;; position, and set to the old mouse-position when the mouse is in exile.
- (if (and (not executing-kbd-macro)
- ;; Don't do anything if last event was a mouse event.
- (not (and (consp last-input-event)
- (symbolp (car last-input-event))
- (let ((modifiers (event-modifiers (car last-input-event))))
- (or (memq (car last-input-event)
- '(mouse-movement scroll-bar-movement))
- (memq 'click modifiers)
- (memq 'drag modifiers)
- (memq 'down modifiers))))))
+ (if (not (mouse-avoidance-ignore-p))
(let ((mp (mouse-position)))
(cond ((and (not mouse-avoidance-state)
(mouse-avoidance-too-close-p mp))
(defun mouse-avoidance-fancy-hook ()
;; Used for the "fancy" modes, ie jump et al.
- (if (and (not executing-kbd-macro) ; don't check inside macro
- ;; Don't do anything if last event was a mouse event.
- (not (and (consp last-input-event)
- (symbolp (car last-input-event))
- (let ((modifiers (event-modifiers (car last-input-event))))
- (or (memq (car last-input-event)
- '(mouse-movement scroll-bar-movement))
- (memq 'click modifiers)
- (memq 'drag modifiers)
- (memq 'down modifiers)))))
+ (if (and (not (mouse-avoidance-ignore-p))
(mouse-avoidance-too-close-p (mouse-position)))
(let ((old-pos (mouse-position)))
(mouse-avoidance-nudge-mouse)
(if mouse-avoidance-mode
(mouse-avoidance-mode mouse-avoidance-mode))
+;; arch-tag: 64ad4ef8-a870-4183-8d96-3aa93b7a6800
;;; avoid.el ends here