如何使弹出窗口居中显示? 这些方法在Chrome多显示器环境下不能正常工作。 "screen"似乎是指整个桌面,而不仅仅是当前窗口。 我想让弹出窗口在浏览器内居中显示。 有什么办法吗?需要跨浏览器支持。
如何使弹出窗口居中显示? 这些方法在Chrome多显示器环境下不能正常工作。 "screen"似乎是指整个桌面,而不仅仅是当前窗口。 我想让弹出窗口在浏览器内居中显示。 有什么办法吗?需要跨浏览器支持。
Here's a demo (should load Google):
function popupwindow(url, title, w, h) {
wLeft = window.screenLeft ? window.screenLeft : window.screenX;
wTop = window.screenTop ? window.screenTop : window.screenY;
var left = wLeft + (window.innerWidth / 2) - (w / 2);
var top = wTop + (window.innerHeight / 2) - (h / 2);
return window.open(url, title, 'toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=no, resizable=no, copyhistory=no, width=' + w + ', height=' + h + ', top=' + top + ', left=' + left);
}
<button onclick="popupwindow('http://www.google.com/', 'hello', 400, 400)">
Click
</button>
window.screenTop
和 Left
在 Firefox 3.6 Ubuntu 中未定义。需要跨浏览器:)否则,它在 Chrome 中运行良好,这很好。也无法在 Windows 7 VM 下的 IE 中工作。 - mpen以下是代码:
function OpenWindow(params, width, height, name) {
var screenLeft=0, screenTop=0;
if(!name) name = 'MyWindow';
if(!width) width = 600;
if(!height) height = 600;
var defaultParams = { }
if(typeof window.screenLeft !== 'undefined') {
screenLeft = window.screenLeft;
screenTop = window.screenTop;
} else if(typeof window.screenX !== 'undefined') {
screenLeft = window.screenX;
screenTop = window.screenY;
}
var features_dict = {
toolbar: 'no',
location: 'no',
directories: 'no',
left: screenLeft + ($(window).width() - width) / 2,
top: screenTop + ($(window).height() - height) / 2,
status: 'yes',
menubar: 'no',
scrollbars: 'yes',
resizable: 'no',
width: width,
height: height
};
features_arr = [];
for(var k in features_dict) {
features_arr.push(k+'='+features_dict[k]);
}
features_str = features_arr.join(',')
var qs = '?'+$.param($.extend({}, defaultParams, params));
var win = window.open(qs, name, features_str);
win.focus();
return false;
}
在所有浏览器中似乎都可以正常工作。
a + b/2 - c/2 == a + (b-c)/2
。 - mpen这将使新弹出窗口在浏览器窗口中居中,并在已存在时重新聚焦。如果您移动浏览器窗口并再次调用弹出窗口,则只会重新居中弹出窗口。
JS:
var my_window = null;
function popupwindow(url, title, w, h)
{
var screenLeft=0, screenTop=0;
var windowWidth=0, windowHeight=0;
var newTop=0, newLeft=0;
if (typeof window.screenLeft !== 'undefined')
{
screenLeft = window.screenLeft;
screenTop = window.screenTop;
}
else if(typeof window.screenX !== 'undefined')
{
screenLeft = window.screenX;
screenTop = window.screenY;
}
//console.log(screenLeft + ',' + screenTop);
windowWidth = window.innerWidth;
windowHeight = window.innerHeight;
//console.log(windowWidth + ',' + windowHeight);
newLeft = screenLeft + (windowWidth / 2) - (w / 2);
screenTop + (windowHeight / 2);
if (my_window==null)
{
my_window = window.open(url, title, 'toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=no, resizable=no, copyhistory=no, width=' + w + ', height=' + h + ', top=' + newTop + ', left=' + newLeft);
}
else
{
if (my_window.closed)
{
my_window = null;
my_window = window.open(url, title, 'toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=no, resizable=no, copyhistory=no, width=' + w + ', height=' + h + ', top=' + newTop + ', left=' + newLeft);
}
else
{
my_window.moveTo(newLeft,newTop);
}
}
my_window.focus();
return false;
}
HTML:
<a href="#" onclick="popupwindow('your_page_here.htm', 'title', 450, 400)">Login</a>
window.screenLeft
和window.screenTop
。 - Doug S