From f2f96e1015187951829601a36ae45a9bbbe6820f Mon Sep 17 00:00:00 2001
From: coderaiser <mnemonic.enemy@gmail.com>
Date: Tue, 12 May 2015 07:37:29 -0400
Subject: [PATCH] refactor(dom) isContainClass

---
 lib/client/dom.js      | 17 +++++++++++------
 lib/client/polyfill.js | 10 +++-------
 2 files changed, 14 insertions(+), 13 deletions(-)

diff --git a/lib/client/dom.js b/lib/client/dom.js
index d73e88ec..ca1056c6 100644
--- a/lib/client/dom.js
+++ b/lib/client/dom.js
@@ -216,12 +216,17 @@ var CloudCmd, Util, DOM, CloudFunc, Dialog;
              * @param element
              * @param pClass
              */
-            this.isContainClass          = function(element, pClass) {
-                var ret,
-                    lClassList = element && element.classList;
-                    
-                if (lClassList)
-                    ret = lClassList.contains(pClass);
+            this.isContainClass          = function(element, className) {
+                var ret, classList;
+                
+                if (!element)
+                    throw(Error('element could not be empty!'));
+                
+                if (!className)
+                    throw(Error('className could not be empty!'));
+                
+                classList   = element.classList;
+                ret         = classList.contains(className);
                     
                 return ret;
             };
diff --git a/lib/client/polyfill.js b/lib/client/polyfill.js
index edcc6c31..b21a8c79 100644
--- a/lib/client/polyfill.js
+++ b/lib/client/polyfill.js
@@ -157,14 +157,10 @@ var Util, DOM, jQuery;
     };
           
     if (!document.body.classList) {
-        DOM.isContainClass          = function(pElement, pClass) {
-            var lRet,
-                lClassName  = pElement && pElement.className;
+        DOM.isContainClass          = function(el, className) {
+            var ret = $(el).hasClass(className);
             
-            if (lClassName)
-                lRet = lClassName.indexOf(pClass) > 0;
-                
-            return lRet;
+            return ret;
         };
         
         DOM.addClass = function(pElement, pClass) {