即使鼠标离开浏览器窗口也滚动?

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关于官方jScrollPane的观察整页滚动演示 ...

An observation regarding the official jScrollPane full page scroll demo...

单击并拖动控制窗口的大型垂直滚动条.当您单击并拖动滚动条，并且鼠标意外离开浏览器窗口时，我注意到以下行为:

Click and drag the large vertical scrollbar controlling the window. I've noticed the following behavior when you click+drag the scrollbar and the mouse accidentally leaves the browser window:

• Safari(XP):即使将鼠标拖动到浏览器窗口的外面，滚动条也会响应.似乎无法打破它.很棒.
• FF4(XP):滚动条停止响应.当鼠标再次进入时，它会再次成功响应(您无需单击即可开始再次拖动).有点烦人.
• IE8(XP):滚动条停止响应.当鼠标再次进入时，它也没有响应(您必须再次单击以拖动).这是三者中最糟糕的.

因此Safari(我想是Safari，和Webkit)可以完美地处理鼠标在窗口外的移动.甚至有可能使IE和FF具有类似的行为，还是Trident和Gecko引擎的那些局限性?

So Safari (and Webkit, I presume) handles mouse movement outside the window perfectly. Is it even possible to get IE and FF to behave similarly, or are those limitations of the Trident and Gecko engines?

推荐答案

[我最初回答 a完全不同的问题在这里是错误的，因此请编辑以回答正确的问题]

[I originally answered a completely different question here by mistake so editing to answer the correct question]

jScrollPane对此无能为力.我做了一些研究，但是当鼠标离开浏览器窗口时，触发启动/鼠标事件时，不同的浏览器的行为似乎有所不同.这使得很难在jScrollPane中实现一致的行为(如果您在iframe上使用全身滚动，则当鼠标离开iframe时也会发生此问题.)

There is very little jScrollPane can do about this. I did a little research but it seems that different browsers behave differently when it comes to triggering rollout/mouseout events when the mouse leaves the browser window. This makes it hard to implement a consistent behaviour within jScrollPane (the problem also occurs when the mouse leaves an iframe if you use full body scroll on an iframe).

我认为可能是出于安全原因，浏览器没有报告鼠标在窗口外的移动，因此，对此几乎无能为力:(

I think there are probably security reasons for browsers not reporting mouse movement outside of the window so there is probably very little that can be done about this :(