javascript-events--'mouseup'在mousemove之后没有触发 [英] javascript-events-- 'mouseup' not firing after mousemove

问题描述

我试图用javascript（没有库）拖动图像。我能听到mousedown和mousemove事件。出于某种原因，我无法在mousemove之后捕获mouseup事件。 （如果是点击，我可以捕获mouseup，但如果是拖动则不能捕获）。
我试图在文档，窗口和图像上收听事件。
这是我的测试页面的网址：

I am trying to drag an image with javascript(no libraries). I am able to listen to "mousedown" and "mousemove" events. For some reason, I am not able to capture the "mouseup" event after mousemove. (I can capture mouseup if it is a click but not if it is a drag). I have tried to listen to the event on document, window, and the image. Here's the url to my test page:

https://dl-web.dropbox.com/get/Public/move.html?w=74a0d498

对此的任何帮助将不胜感激！
谢谢！

Any help on this would be greatly appreciated!!! Thanks!

推荐答案

发现问题，如果它对任何人都有帮助：

Found the issue, if it is going to be of help to anyone:

我在 mousedown 事件中添加了 event.preventDefault（）; 现在我得到 mouseup 通知。

I added event.preventDefault(); in the mousedown event and now I am getting mouseup notifications.

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