X-Git-Url: http://git.hcoop.net/bpt/emacs.git/blobdiff_plain/7be1c708c5abc7dea388d45454bd19bff07b7943..ba3189039adc8ec5eba5ed3e21d42019a4616b7c:/lisp/avoid.el

diff --git a/lisp/avoid.el b/lisp/avoid.el
index 038927105e..f301372893 100644
--- a/lisp/avoid.el
+++ b/lisp/avoid.el
@@ -1,6 +1,6 @@
 ;;; avoid.el --- make mouse pointer stay out of the way of editing
 
-;; Copyright (C) 1993-1994, 2000-2011 Free Software Foundation, Inc.
+;; Copyright (C) 1993-1994, 2000-2014 Free Software Foundation, Inc.
 
 ;; Author: Boris Goldowsky <boris@gnu.org>
 ;; Keywords: mouse
@@ -41,9 +41,9 @@
 ;;
 ;; (if (eq window-system 'x)
 ;;     (mouse-avoidance-set-pointer-shape
-;;	     (eval (nth (random 4)
-;;			'(x-pointer-man x-pointer-spider
-;;			  x-pointer-gobbler x-pointer-gumby)))))
+;;	     (nth (random 4)
+;;		  (list x-pointer-man x-pointer-spider
+;;			x-pointer-gobbler x-pointer-gumby))))
 ;;
 ;; For completely random pointer shape, replace the setq above with:
 ;; (setq x-pointer-shape (mouse-avoidance-random-shape))
@@ -67,7 +67,7 @@
 
 ;;; Code:
 
-(provide 'avoid)
+(eval-when-compile (require 'cl-lib))
 
 (defgroup avoid nil
   "Make mouse pointer stay out of the way of editing."
@@ -80,7 +80,7 @@
 See function `mouse-avoidance-mode' for possible values.
 Setting this variable directly does not take effect;
 use either \\[customize] or the function `mouse-avoidance-mode'."
-  :set (lambda (symbol value)
+  :set (lambda (_symbol value)
 	 ;; 'none below prevents toggling when value is nil.
 	 (mouse-avoidance-mode (or value 'none)))
   :initialize 'custom-initialize-default
@@ -115,6 +115,24 @@ Only applies in Mouse Avoidance modes `animate' and `jump'."
   :type 'integer
   :group 'avoid)
 
+(defcustom mouse-avoidance-banish-position '((frame-or-window . frame)
+                                             (side . right)
+                                             (side-pos . 3)
+                                             (top-or-bottom . top)
+                                             (top-or-bottom-pos . 0))
+  "Position to which Mouse Avoidance mode `banish' moves the mouse.
+An alist where keywords mean:
+FRAME-OR-WINDOW: banish the mouse to corner of frame or window.
+SIDE: banish the mouse on right or left corner of frame or window.
+SIDE-POS: Distance from right or left edge of frame or window.
+TOP-OR-BOTTOM: banish the mouse to top or bottom of frame or window.
+TOP-OR-BOTTOM-POS: Distance from top or bottom edge of frame or window."
+  :group   'avoid
+  :version "24.3"
+  :type    '(alist :key-type symbol :value-type symbol)
+  :options '(frame-or-window side (side-pos integer)
+             top-or-bottom (top-or-bottom-pos integer)))
+
 ;; Internal variables
 (defvar mouse-avoidance-state nil)
 (defvar mouse-avoidance-pointer-shapes nil)
@@ -136,13 +154,15 @@ Only applies in Mouse Avoidance modes `animate' and `jump'."
 (defun mouse-avoidance-point-position ()
   "Return the position of point as (FRAME X . Y).
 Analogous to `mouse-position'."
-  (let ((edges (window-inside-edges))
-	(x-y (posn-x-y (posn-at-point))))
-    (cons (selected-frame)
-	  (cons (+ (car edges)
-		   (/ (car x-y) (frame-char-width)))
-		(+ (car (cdr edges))
-		   (/ (cdr x-y) (frame-char-height)))))))
+  (let* ((edges (window-inside-edges))
+	 (posn-at-point (posn-at-point))
+	 (x-y (and posn-at-point (posn-x-y posn-at-point))))
+    (when x-y
+      (cons (selected-frame)
+	    (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)
@@ -167,29 +187,63 @@ MOUSE is the current mouse position as returned by `mouse-position'.
 Acceptable distance is defined by `mouse-avoidance-threshold'."
   (let* ((frame (car mouse))
 	 (mouse-y (cdr (cdr mouse)))
-	 (tool-bar-lines (frame-parameter nil 'tool-bar-lines)))
+	 (tool-bar-lines (frame-parameter nil 'tool-bar-lines))
+	 point)
     (or tool-bar-lines
 	(setq tool-bar-lines 0))
-    (if (and mouse-y (< mouse-y tool-bar-lines))
-	nil
-      (let ((point (mouse-avoidance-point-position))
-	    (mouse-x (car (cdr mouse))))
+    (cond
+     ((and mouse-y (< mouse-y tool-bar-lines))
+      nil)
+     ((setq point (mouse-avoidance-point-position))
+      (let ((mouse-x (car (cdr mouse))))
 	(and (eq frame (car point))
 	     (not (null mouse-x))
 	     (< (abs (- mouse-x (car (cdr point))))
 		mouse-avoidance-threshold)
 	     (< (abs (- mouse-y (cdr (cdr point))))
-		mouse-avoidance-threshold))))))
+		mouse-avoidance-threshold)))))))
 
 (defun mouse-avoidance-banish-destination ()
   "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."
-  (let* ((pos (window-edges)))
-    (cons (- (nth 2 pos) 2)
-	  (nth 1 pos))))
+
+If you want the mouse banished to a different corner set
+`mouse-avoidance-banish-position' as you need."
+  (let* ((fra-or-win         (assoc-default
+                              'frame-or-window
+                              mouse-avoidance-banish-position 'eq))
+         (list-values        (pcase fra-or-win
+                               (`frame (list 0 0 (frame-width) (frame-height)))
+                               (`window (window-edges))))
+         (alist              (cl-loop for v in list-values
+                                      for k in '(left top right bottom)
+                                      collect (cons k v)))
+         (side               (assoc-default
+                              'side
+                              mouse-avoidance-banish-position #'eq))
+         (side-dist          (assoc-default
+                              'side-pos
+                              mouse-avoidance-banish-position #'eq))
+         (top-or-bottom      (assoc-default
+                              'top-or-bottom
+                              mouse-avoidance-banish-position #'eq))
+         (top-or-bottom-dist (assoc-default
+                              'top-or-bottom-pos
+                              mouse-avoidance-banish-position #'eq))
+         (side-fn            (pcase side
+                               (`left '+)
+                               (`right '-)))
+         (top-or-bottom-fn   (pcase top-or-bottom
+                               (`top '+)
+                               (`bottom '-))))
+    (cons (funcall side-fn                        ; -/+
+                   (assoc-default side alist 'eq) ; right or left
+                   side-dist)                     ; distance from side
+	  (funcall top-or-bottom-fn                        ; -/+
+                   (assoc-default top-or-bottom alist 'eq) ; top/bottom
+                   top-or-bottom-dist)))) ; distance from top/bottom
 
 (defun mouse-avoidance-banish-mouse ()
-  ;; Put the mouse pointer in the upper-right corner of the current frame.
+  "Put the mouse pointer to `mouse-avoidance-banish-position'."
   (mouse-avoidance-set-mouse-position (mouse-avoidance-banish-destination)))
 
 (defsubst mouse-avoidance-delta (cur delta dist var min max)
@@ -218,7 +272,6 @@ You can redefine this if you want the mouse banished to a different corner."
   ;; 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))
@@ -408,4 +461,6 @@ definition of \"random distance\".)"
 (if mouse-avoidance-mode
     (mouse-avoidance-mode mouse-avoidance-mode))
 
+(provide 'avoid)
+
 ;;; avoid.el ends here