From 9c0acf67eb9dbac23bff03c117b69fc919beb111 Mon Sep 17 00:00:00 2001
From: "josh_burson@intuit.com" <josh_burson@intuit.com>
Date: Mon, 25 Jan 2016 11:18:45 -0800
Subject: [PATCH] chore(dropdown): avoid toggling class on first load

- Avoid toggling class on first load of directive

Closes #5341
---
 src/dropdown/dropdown.js | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/src/dropdown/dropdown.js b/src/dropdown/dropdown.js
index 1395963507..7a0a4b36b9 100644
--- a/src/dropdown/dropdown.js
+++ b/src/dropdown/dropdown.js
@@ -221,12 +221,15 @@ angular.module('ui.bootstrap.dropdown', ['ui.bootstrap.position'])
     }
 
     var openContainer = appendTo ? appendTo : $element;
+    var hasOpenClass = openContainer.hasClass(appendTo ? appendToOpenClass : openClass);
 
-    $animate[isOpen ? 'addClass' : 'removeClass'](openContainer, appendTo ? appendToOpenClass : openClass).then(function() {
-      if (angular.isDefined(isOpen) && isOpen !== wasOpen) {
-        toggleInvoker($scope, { open: !!isOpen });
-      }
-    });
+    if (hasOpenClass === !isOpen) {
+      $animate[isOpen ? 'addClass' : 'removeClass'](openContainer, appendTo ? appendToOpenClass : openClass).then(function() {
+        if (angular.isDefined(isOpen) && isOpen !== wasOpen) {
+          toggleInvoker($scope, { open: !!isOpen });
+        }
+      });
+    }
 
     if (isOpen) {
       if (self.dropdownMenuTemplateUrl) {