From 59d6c23c508c1ee8a0e12152a7ee9810d558401a Mon Sep 17 00:00:00 2001
From: zozzz <vetesi.zoltan@gmail.com>
Date: Sun, 11 May 2014 00:01:42 +0200
Subject: [PATCH] Move mouseLocs track code outside from init

If init function called a lot of times, the browser dramatically slow
down, because the mouse location track function called every time of
mouse move * init function call count.
---
 jquery.menu-aim.js | 30 +++++++++++++-----------------
 1 file changed, 13 insertions(+), 17 deletions(-)

diff --git a/jquery.menu-aim.js b/jquery.menu-aim.js
index 0c32941..0f471bb 100644
--- a/jquery.menu-aim.js
+++ b/jquery.menu-aim.js
@@ -70,6 +70,9 @@
  * https://github.com/kamens/jQuery-menu-aim
 */
 (function($) {
+    var mouseLocs = [],
+        MOUSE_LOCS_TRACKED = 3,  // number of past mouse locations to track
+        DELAY = 300;  // ms delay when user appears to be entering submenu;
 
     $.fn.menuAim = function(opts) {
         // Initialize menu-aim for all elements in jQuery collection
@@ -83,7 +86,6 @@
     function init(opts) {
         var $menu = $(this),
             activeRow = null,
-            mouseLocs = [],
             lastDelayLoc = null,
             timeoutId = null,
             options = $.extend({
@@ -98,20 +100,6 @@
                 exitMenu: $.noop
             }, opts);
 
-        var MOUSE_LOCS_TRACKED = 3,  // number of past mouse locations to track
-            DELAY = 300;  // ms delay when user appears to be entering submenu
-
-        /**
-         * Keep track of the last few locations of the mouse.
-         */
-        var mousemoveDocument = function(e) {
-                mouseLocs.push({x: e.pageX, y: e.pageY});
-
-                if (mouseLocs.length > MOUSE_LOCS_TRACKED) {
-                    mouseLocs.shift();
-                }
-            };
-
         /**
          * Cancel possible row activations when leaving the menu entirely
          */
@@ -315,9 +303,17 @@
                 .mouseenter(mouseenterRow)
                 .mouseleave(mouseleaveRow)
                 .click(clickRow);
+    };
 
-        $(document).mousemove(mousemoveDocument);
+    /**
+     * Keep track of the last few locations of the mouse.
+     */
+    $(document).mousemove(function(e) {
+        mouseLocs.push({x: e.pageX, y: e.pageY});
 
-    };
+        if (mouseLocs.length > MOUSE_LOCS_TRACKED) {
+            mouseLocs.shift();
+        }
+    });
 })(jQuery);