Merge pull request #35 from alansouzati/master

Fix problem with Firefox

Author: webcss

src/indexeddb.js

@@ -5,9 +5,6 @@
  */
 
 'use strict';
-/** unify browser specific implementations */
-var indexedDB = window.indexedDB||window.mozIndexedDB||window.webkitIndexedDB||window.msIndexedDB;
-var IDBKeyRange=window.IDBKeyRange||window.mozIDBKeyRange||window.webkitIDBKeyRange||window.msIDBKeyRange;
 
 angular.module('xc.indexedDB', []).provider('$indexedDB', function() {
     var module          = this,
@@ -81,7 +78,14 @@ angular.module('xc.indexedDB', []).provider('$indexedDB', function() {
         return this;
     };
 
-    module.$get = ['$q', '$rootScope', function($q, $rootScope) {
+    module.$get = ['$q', '$rootScope', '$window', function($q, $rootScope, $window) {
+
+        if(!('indexedDB' in $window)) {
+            $window.indexedDB = $window.mozIndexedDB || $window.webkitIndexedDB || $window.msIndexedDB;
+        }
+
+        var IDBKeyRange = $window.IDBKeyRange || $window.mozIDBKeyRange || $window.webkitIDBKeyRange || $window.msIDBKeyRange;
+
         /**
          * @ngdoc object
          * @name defaultQueryOptions
@@ -114,7 +118,7 @@ angular.module('xc.indexedDB', []).provider('$indexedDB', function() {
                 deferred = $q.defer();
                 module.dbPromise = deferred.promise;
 
-                dbReq = indexedDB.open(module.dbName, module.dbVersion || 1);
+                dbReq = $window.indexedDB.open(module.dbName, module.dbVersion || 1);
                 dbReq.onsuccess = function(e) {
                     module.db = dbReq.result;
                     $rootScope.$apply(function(){