From 32d459159c76f91efd8e80ab0205df7cee10e9f3 Mon Sep 17 00:00:00 2001
From: Kyle Spearrin <kyle.spearrin@gmail.com>
Date: Wed, 21 Sep 2016 11:11:36 -0400
Subject: [PATCH] getBrowser cache

---
 src/services/utilsService.js | 46 ++++++++++++++++++++++++++----------
 1 file changed, 34 insertions(+), 12 deletions(-)

diff --git a/src/services/utilsService.js b/src/services/utilsService.js
index 3c6352006e3..b37860a83a7 100644
--- a/src/services/utilsService.js
+++ b/src/services/utilsService.js
@@ -1,22 +1,44 @@
 function UtilsService() {
     initUtilsService();
+
+    this.browserCache = null;
 };
 
 function initUtilsService() {
     UtilsService.prototype.getBrowser = function () {
-        if (navigator.userAgent.indexOf("Firefox") !== -1 || navigator.userAgent.indexOf("Gecko/") !== -1) {
-            return 'firefox';
-        }
-        if ((!!window.opr && !!opr.addons) || !!window.opera || navigator.userAgent.indexOf(' OPR/') >= 0) {
-            return 'opera';
-        }
-        if (navigator.userAgent.indexOf(" Edge/") !== -1) {
-            return 'edge';
-        }
-        if (window.chrome) {
-            return 'chrome';
+        if (this.browserCache) {
+            return this.browserCache;
         }
 
-        return null;
+        if (navigator.userAgent.indexOf("Firefox") !== -1 || navigator.userAgent.indexOf("Gecko/") !== -1) {
+            this.browserCache = 'firefox';
+        }
+        else if ((!!window.opr && !!opr.addons) || !!window.opera || navigator.userAgent.indexOf(' OPR/') >= 0) {
+            this.browserCache = 'opera';
+        }
+        else if (navigator.userAgent.indexOf(" Edge/") !== -1) {
+            this.browserCache = 'edge';
+        }
+        else if (window.chrome) {
+            this.browserCache = 'chrome';
+        }
+
+        return this.browserCache;
     };
+
+    UtilsService.prototype.isFirefox = function () {
+        return this.getBrowser() === 'firefox';
+    }
+
+    UtilsService.prototype.isChrome = function () {
+        return this.getBrowser() === 'chrome';
+    }
+
+    UtilsService.prototype.isEdge = function () {
+        return this.getBrowser() === 'edge';
+    }
+
+    UtilsService.prototype.isOpera = function () {
+        return this.getBrowser() === 'opera';
+    }
 };