From 48e5a8bc365e89f1d0446758a7211f5773956443 Mon Sep 17 00:00:00 2001
From: Nikita <nikita.yaroshevich@gmail.com>
Date: Wed, 31 Dec 2014 02:11:24 +0300
Subject: [PATCH] fix(button): fix error when md-button is disabled anchor

attr.ngDisabled can't trackable by $watch without because it is not inside the scope.

Closes #1074.
---
 src/components/button/button.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/components/button/button.js b/src/components/button/button.js
index ac40d1ef925..d7346e3e7f3 100644
--- a/src/components/button/button.js
+++ b/src/components/button/button.js
@@ -79,7 +79,7 @@ function MdButtonDirective($mdInkRipple, $mdTheming, $mdAria) {
     // For anchor elements, we have to set tabindex manually when the 
     // element is disabled
     if (isAnchor(attr)) {
-      scope.$watch(attr.ngDisabled, function(isDisabled) {
+      scope.$watch(function() {return attr.ngDisabled;}, function(isDisabled) {
         element.attr('tabindex', isDisabled ? -1 : 0);
       });
     }