fix(core): support jQlite

Author: SobolievOleksii

packages/core/src/js/directives/ui-grid.js

@@ -338,7 +338,7 @@ function uiGridDirective($window, gridUtil, uiGridConstants) {
 
           // Resize the grid on window resize events
           function gridResize() {
-            if (!$elm.is(':visible')) {
+            if (!gridUtil.isVisible($elm)) {
               return;
             }
             grid.gridWidth = $scope.gridWidth = gridUtil.elementWidth($elm);

packages/core/src/js/services/ui-grid-util.js

@@ -457,6 +457,10 @@ module.service('gridUtil', ['$log', '$window', '$document', '$http', '$templateC
 
     },
 
+    isVisible: function (elem) {
+      return !!( elem[0].offsetWidth || elem[0].offsetHeight || elem[0].getClientRects().length )
+    },
+
     // Thanks to http://stackoverflow.com/a/13382873/888165
     getScrollbarWidth: function() {
         var outer = document.createElement("div");