HTML5与jQuery - e.offsetX在Firefox中未定义 [英] HTML5 with jQuery - e.offsetX is undefined in Firefox
问题描述
在我的HTML5页面中,我有一个具有 mousemove
事件的div,如下所示:
code $ $('#canvas')mousemove(function(e){
xpos = e.offsetX;
ypos = e.offsetY;
$('#mouse' ).html(X:+ xpos +; Y:+ ypos);
});
它适用于Google Chrome。但是在Firefox中,两者都赋值 undefined
。我已经使用Firebug进行了检查,也就是将 e
对象记录到控制台。 offsetX
和 offsetY
被发现为未定义
。 / p>
当我在Google搜索时,有一个解决方案说我应该使用 layerX
和 layerY
,如果 offsetX
和 offsetY
均未定义。
但是从Firebug,我无法找到它。即使我给了它这样的尝试:
xpos =(e.offsetX == undefined)?e.layerX: e.offsetX;
ypos =(e.offsetY == undefined)?e.layerY:e.offsetY;
但这也是将$ code> undefined 作为值。
我正在使用最新的jQuery - v1.8.2。我在Firefox v14.0.1中测试
任何想法或建议?感谢提前..
编辑
$ b $感谢dystroy和vusan帮助我。解决上述问题的方法如下:
解决方案
$('#canvas')。mousemove(function(e){
$('#cursor')。show();
if(e.offsetX == undefined )//这适用于Firefox
{
xpos = e.pageX - $('#canvas')。offset()。left;
ypos = e.pageY - $('#画布')。offset()。top;
}
else //在Google Chrome中工作
{
xpos = e.offsetX;
ypos = e.offsetY ;
}
$('#mouse')。html(X:+ xpos +; Y:+ ypos);
});
信用到dystroy和vusan。感谢你们。 :
尝试使用 layerX
和对于Firefox而言,layerY
和其他浏览器的 offsetX
。
如果使用jquery触发事件:
xpos = e.offsetX === undefined? e.originalEvent.layerX:e.offsetX;
ypos = e.offsetY === undefined? e.originalEvent.layerY:e.offsetY;
如果事件触发了javascript:
xpos = e.offsetX == undefined?e.layerX:e.offsetX;
ypos = e.offsetY == undefined?e.layerY:e.offsetY;
In my HTML5 page, I have a div with mousemove
event as follows:
$('#canvas').mousemove(function(e){
xpos = e.offsetX;
ypos = e.offsetY;
$('#mouse').html("X : " + xpos + " ; Y : " + ypos);
});
It works fine with Google Chrome. But in Firefox, both the are giving the value undefined
. I have checked it by using Firebug, that is, logged the e
object to console. Both offsetX
and offsetY
are found to be undefined
.
When I searched in Google, there was a solution saying I should use layerX
and layerY
, if both offsetX
and offsetY
are undefined.
But from Firebug, I was not able to find it. And even I had given it a try like this:
xpos = (e.offsetX==undefined)?e.layerX:e.offsetX;
ypos = (e.offsetY==undefined)?e.layerY:e.offsetY;
But that's also giving undefined
as values.
I am using the most recent jQuery - v1.8.2. And I am testing in my Firefox v14.0.1
Any ideas or suggestions ? Thanks in advance..
EDIT
Thanks to dystroy and vusan for helping me. The solution to the above issue is as follows:
SOLUTION
$('#canvas').mousemove(function(e){
$('#cursor').show();
if(e.offsetX==undefined) // this works for Firefox
{
xpos = e.pageX-$('#canvas').offset().left;
ypos = e.pageY-$('#canvas').offset().top;
}
else // works in Google Chrome
{
xpos = e.offsetX;
ypos = e.offsetY;
}
$('#mouse').html("X : " + xpos + " ; Y : " + ypos);
});
The credit goes to dystroy and vusan. Thank you guys. :)
Try using layerX
and layerY
for Firefox and offsetX
for other browser.
If event fired with jquery:
xpos = e.offsetX === undefined ? e.originalEvent.layerX : e.offsetX;
ypos = e.offsetY === undefined ? e.originalEvent.layerY : e.offsetY;
If event fired with javascript:
xpos = e.offsetX==undefined?e.layerX:e.offsetX;
ypos = e.offsetY==undefined?e.layerY:e.offsetY;
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