在Ionic / Angular中1/2秒后关闭打开的浏览器窗口

Question

当我在AngularJS中构建的Ionic应用程序完成订单时，它会使用以下命令将订单号发布到API URL：

var returnUrl = window.open("http://example.com/api/" + ordernumber, "_self");

如何在2秒后关闭此窗口然后返回我的应用主页（这是我以前用于超时选项的一些代码）

.controller('ProductListCtrl', function (Products, $rootScope, $scope, $stateParams, $state, $timeout) {
          $scope.products = Products;

          var timeout;

          $scope.$on('$ionicView.enter', function () {
            timeout = setTimeout(function () {
              $state.go('app.home');
            }, 2000);
          })

不确定“自我”浏览器应用程序窗口如何连接控制器？

此窗口打开是以下现有功能的一部分：

     function onPay(order) {
     var itemsArr = [];
     var invoice = {};
     var myItems = {};
     var myItem = {};

     myItem['name'] = order.data.name;
     myItem['description'] = order.data.ordernumber;
     myItem['quantity'] = "1.0";
     myItem['unitPrice'] = order.data.amount;
     myItem['taxRate'] = '0.0';
     myItem['taxName'] = 'Tax';
     itemsArr.push(myItem);
     myItems['item'] = itemsArr;

     invoice['itemList'] = myItems;
     invoice['paymentTerms'] = 'DueOnReceipt';
     invoice['currencyCode'] = 'GBP';
     invoice['discountPercent'] = '0';

     var ordernumber = order.data.order; 
     var returnUrl = window.open("http://example.com/api/" + ordernumber, "_blank");
     var retUrl = encodeURIComponent(returnUrl + "/{result}/Type={Type}/InvoiceId={InvoiceId}/Tip={Tip}/Email={Email}/TxId={TxId}");
     var pphereUrl = "paypalhere://takePayment/v2?returnUrl=" + retUrl;
     pphereUrl = pphereUrl + '&invoice=' + escape(JSON.stringify(invoice));
     console.log(pphereUrl);

     return pphereUrl;

     }