用这个JavaScript在屏幕中心打开新窗口？ [英] Open new window on center of screen with this javascript?

问题描述

我对javascript的使用经验非常有限。

 < script type =text / javascript我想要在屏幕中心打开新窗口。 > 
函数fbs_click（）{
 var twtTitle = document.title; 
 var twtUrl = location.href; 
 var maxLength = 140  - （twtUrl.length + 1）; 
 if（twtTitle.length> maxLength）{
 twtTitle = twtTitle.substr（0，（maxLength  -  3））+'...'; 
} 
 var twtLink ='http://twitter.com/home?status='+ encodeURIComponent（twtTitle +''+ twtUrl）; 
 window.open（twtLink，''，'width = 300，height = 300'）; }< / script> 
  

如果有人可以更新我的代码来完成一个中心化的弹出窗口， / p>

解决方案

这是怎么回事（改编自这里）：

 函数MyPopUpWin（url，width，height）{
 var leftPosition，topPosition; 
 //允许边框。 
 leftPosition =（window.screen.width / 2） - （（width / 2）+ 10）; 
 //允许标题和状态栏。 
 topPosition =（window.screen.height / 2） - （（height / 2）+ 50）; 
 //打开窗口。 
 window.open（url，Window2，
status = no，height =+ height +，width =+ width +，resizable = yes，left =
 + leftPosition +，top =+ topPosition +，screenX =+ leftPosition +，screenY =
 + topPosition +，toolbar = no，menubar = no，scrollbars = no，location = no， =无）; 
} 
  

通过替换 window.open（twtLink， '，'width = 300，height = 300'）; 在代码中使用 MyPopUpWin（twtLink，300，300）;

My experience with javascript is extraordinarily limited. I would like to have the new window open up in the center of the screen.

<script type="text/javascript">
function fbs_click() {
var twtTitle = document.title;
var twtUrl = location.href;
var maxLength = 140 - (twtUrl.length + 1);
if (twtTitle.length > maxLength) {
    twtTitle = twtTitle.substr(0, (maxLength - 3)) + '...';
}
var twtLink = 'http://twitter.com/home?status=' + encodeURIComponent(twtTitle + ' ' + twtUrl);
window.open(twtLink,'','width=300,height=300'); } </script>

If somebody can please update my code to accomplish a popup window which is centered that would be amazing!

解决方案

How's this (adapted from here):

function MyPopUpWin(url, width, height) {
    var leftPosition, topPosition;
    //Allow for borders.
    leftPosition = (window.screen.width / 2) - ((width / 2) + 10);
    //Allow for title and status bars.
    topPosition = (window.screen.height / 2) - ((height / 2) + 50);
    //Open the window.
    window.open(url, "Window2",
    "status=no,height=" + height + ",width=" + width + ",resizable=yes,left="
    + leftPosition + ",top=" + topPosition + ",screenX=" + leftPosition + ",screenY="
    + topPosition + ",toolbar=no,menubar=no,scrollbars=no,location=no,directories=no");
}

Call it by replacing window.open(twtLink,'','width=300,height=300'); in your code with MyPopUpWin(twtLink, 300, 300);

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