From: Timmy Willison <timmywillisn@gmail.com>
Date: Wed, 6 Jan 2016 19:31:46 +0000 (-0500)
Subject: Revert "Offset: simplify jQuery#offsetParent method"
X-Git-Tag: 1.12.0~16
X-Git-Url: https://source.dussan.org/?a=commitdiff_plain;h=24ada82ce803f68d65d47218800208844eadab68;p=jquery.git

Revert "Offset: simplify jQuery#offsetParent method"

This reverts commit 96447575c23f7b313091750ed84cec05db3a25c6.
---

diff --git a/src/offset.js b/src/offset.js
index 9160f7e88..882d85893 100644
--- a/src/offset.js
+++ b/src/offset.js
@@ -160,24 +160,14 @@ jQuery.fn.extend( {
 		};
 	},
 
-	// This method will return documentElement in the following cases:
-	// 1) For the element inside the iframe without offsetParent, this method will return
-	//    documentElement of the parent window
-	// 2) For the hidden or detached element
-	// 3) For body or html element, i.e. in case of the html node - it will return itself
-	//
-	// but those exceptions were never presented as a real life use-cases
-	// and might be considered as more preferable results.
-	//
-	// This logic, however, is not guaranteed and can change at any point in the future
 	offsetParent: function() {
 		return this.map( function() {
-			var offsetParent = this.offsetParent;
+			var offsetParent = this.offsetParent || docElem;
 
-			while ( offsetParent && jQuery.css( offsetParent, "position" ) === "static" ) {
+			while ( offsetParent && ( !jQuery.nodeName( offsetParent, "html" ) &&
+				jQuery.css( offsetParent, "position" ) === "static" ) ) {
 				offsetParent = offsetParent.offsetParent;
 			}
-
 			return offsetParent || docElem;
 		} );
 	}