From 8dc3f8d64394992f312a3ec41675ae1d0f92b465 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Scott=20Gonz=C3=A1lez?= <scott.gonzalez@gmail.com>
Date: Fri, 7 Nov 2008 13:40:01 +0000
Subject: [PATCH] Core: Rewrote isVisible().  New implementation inspired by
 Remy's :reallyvisible selector.

---
 ui/ui.core.js | 15 ++-------------
 1 file changed, 2 insertions(+), 13 deletions(-)

diff --git a/ui/ui.core.js b/ui/ui.core.js
index 904469350..cae5af7e2 100644
--- a/ui/ui.core.js
+++ b/ui/ui.core.js
@@ -168,21 +168,10 @@ $.extend($.expr[':'], {
 	
 	// TODO: add support for object, area
 	tabbable: function(a, i, m) {
-
+		
 		var nodeName = a.nodeName.toLowerCase();
 		function isVisible(element) {
-			function checkStyles(element) {
-				var style = element.style;
-				return (style.display != 'none' && style.visibility != 'hidden');
-			}
-			
-			var visible = checkStyles(element);
-			
-			(visible && $.each($.dir(element, 'parentNode'), function() {
-				return (visible = checkStyles(this));
-			}));
-			
-			return visible;
+			return !$(element).parents().andSelf().filter(':hidden').length;
 		}
 		
 		return (
-- 
2.39.5