Fix slow performance when using closeOnBlur.

Author: ardell

dist/angularjs-dropdown-multiselect.min.js

@@ -148,22 +148,24 @@ directiveModule.directive('ngDropdownMultiselect', ['$filter', '$document', '$co
 
                 if ($scope.settings.closeOnBlur) {
                     $document.on('click', function (e) {
-                        var target = e.target.parentElement;
-                        var parentFound = false;
-
-                        while (angular.isDefined(target) && target !== null && !parentFound) {
-                            if (_.contains(target.className.split(' '), 'multiselect-parent') && !parentFound) {
-                                if(target === $dropdownTrigger) {
-                                    parentFound = true;
+                        if ($scope.open) {
+                            var target = e.target.parentElement;
+                            var parentFound = false;
+
+                            while (angular.isDefined(target) && target !== null && !parentFound) {
+                                if (_.contains(target.className.split(' '), 'multiselect-parent') && !parentFound) {
+                                    if(target === $dropdownTrigger) {
+                                        parentFound = true;
+                                    }
                                 }
+                                target = target.parentElement;
                             }
-                            target = target.parentElement;
-                        }
 
-                        if (!parentFound) {
-                            $scope.$apply(function () {
-                                $scope.open = false;
-                            });
+                            if (!parentFound) {
+                                $scope.$apply(function () {
+                                    $scope.open = false;
+                                });
+                            }
                         }
                     });
                 }