From 055cc0e4f6f9de5721986515656ac894855f9e02 Mon Sep 17 00:00:00 2001
From: vieron <javiersanchezmarin@gmail.com>
Date: Fri, 25 Oct 2013 20:56:19 +0200
Subject: [PATCH] feat(draggable): pass previous position to the drag callback

---
 src/jquery.draggable.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/jquery.draggable.js b/src/jquery.draggable.js
index 73a4a9ffd..c19c89263 100644
--- a/src/jquery.draggable.js
+++ b/src/jquery.draggable.js
@@ -289,10 +289,14 @@
             'top' : offset.top
         });
 
+        var last_position = this.last_position || data.position;
+        data.prev_position = last_position;
 
         if (this.options.drag) {
             this.options.drag.call(this.$player, e, data);
         }
+
+        this.last_position = data.position;
         return false;
     };