TypeError：undefined不是一个对象（评估'newWindow.focus'） [英] TypeError: undefined is not an object (evaluating 'newWindow.focus')
问题描述
I am having the following javascript which open ups a child window with the sizes and align it int he center of the screen我有以下的JavaScript，它打开一个窗口大小的子窗口， >函数PopupCenter（url，title，w，h）{
//修正双屏幕位置大多数浏览器Firefox
var dualScreenLeft = window.screenLeft！= undefined？ window.screenLeft：screen.left;
var dualScreenTop = window.screenTop！= undefined？ window.screenTop：screen.top;
var width = window.innerWidth？ window.innerWidth：document.documentElement.clientWidth？ document.documentElement.clientWidth：screen.width;
var height = window.innerHeight？ window.innerHeight：document.documentElement.clientHeight？ document.documentElement.clientHeight：screen.height;
var left =（（width / 2） - （w / 2））+ dualScreenLeft;
var top =（（height / 2） - （h / 2））+ dualScreenTop;
var newWindow = window.open（url，title，'scrollbars = yes，width ='+ w +'，height ='+ h +'，top ='+ top +'，left ='+ left） ;
//将注意力放在newWindow
if（window.focus）{
newWindow.focus（）;
}
var timer = setInterval（checkChild，500）;
函数checkChild（）{
if（newWindow.closed）{
var message ='您通过关闭窗口中止了交易！';
var status ='closed';
paymentResponseDisplay（消息，状态）
clearInterval（timer）;
window.onbeforeunload = function（）{
if（！newWindow.closed）{
return你真的想放弃这个事务吗？ ;
$ b $ / code>
function PopupCenter(url, title, w, h) {
// Fixes dual-screen position Most browsers Firefox
var dualScreenLeft = window.screenLeft != undefined ? window.screenLeft : screen.left;
var dualScreenTop = window.screenTop != undefined ? window.screenTop : screen.top;
var width = window.innerWidth ? window.innerWidth : document.documentElement.clientWidth ? document.documentElement.clientWidth : screen.width;
var height = window.innerHeight ? window.innerHeight : document.documentElement.clientHeight ? document.documentElement.clientHeight : screen.height;
var left = ((width / 2) - (w / 2)) + dualScreenLeft;
var top = ((height / 2) - (h / 2)) + dualScreenTop;
var newWindow = window.open(url, title, 'scrollbars=yes, width=' + w + ', height=' + h + ', top=' + top + ', left=' + left);
// Puts focus on the newWindow
if (window.focus) {
newWindow.focus();
}
var timer = setInterval(checkChild, 500);
function checkChild() {
if (newWindow.closed) {
var message = 'You have aborted the transaction by closing the window !';
var status = 'closed';
paymentResponseDisplay(message,status)
clearInterval(timer);
}
}
window.onbeforeunload = function() {
if(!newWindow.closed){
return "Do you really want to abort this transaction?";
}
}
}
但是在safari我得到
But in safari I am getting
TypeError: undefined is not an object (evaluating 'newWindow.focus')
我无法为此找到解决方法。有人可以帮忙吗？
I am unable to find a fix for this. Can some one help out?
推荐答案
在我的情况下，发生这个问题是因为我从Safari中的ajax结果调用了popup。
我收到了同步的ajax，它工作正常。
In my case, this problem occurred because I called popup from the ajax result in the Safari. I received ajax with sync and it worked fine.
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