From 386afd3b40a3a5da779d5724054e85c37148bac3 Mon Sep 17 00:00:00 2001
From: Mike Sherov <mike.sherov@gmail.com>
Date: Wed, 20 Aug 2014 10:00:48 -0400
Subject: [PATCH] Drag: handle option to drag by center vs. corner

---
 jquery.simulate.js | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/jquery.simulate.js b/jquery.simulate.js
index eeb5624..6359ce4 100644
--- a/jquery.simulate.js
+++ b/jquery.simulate.js
@@ -279,12 +279,24 @@ function findCenter( elem ) {
 	};
 }
 
+function findCorner( elem ) {
+	var offset,
+		document = $( elem.ownerDocument );
+	elem = $( elem );
+	offset = elem.offset();
+
+	return {
+		x: offset.left - document.scrollLeft(),
+		y: offset.top - document.scrollTop()
+	};
+}
+
 $.extend( $.simulate.prototype, {
 	simulateDrag: function() {
 		var i = 0,
 			target = this.target,
 			options = this.options,
-			center = findCenter( target ),
+			center = options.handle === "corner" ? findCorner( target ) : findCenter( target ),
 			x = Math.floor( center.x ),
 			y = Math.floor( center.y ),
 			dx = options.dx || 0,