Javascript 如何在javascript中获取相对于窗口视口的鼠标位置?
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How to get the mouse position relative to the window viewport in javascript?
提问by nice ass
event.pageYgets you the mouse position relative to the entire document height(document.documentElement.offsetHeightI assume).
event.pageY让您获得相对于整个文档高度的鼠标位置(document.documentElement.offsetHeight我假设)。
But how do I get the mouse position relative to the current viewport, which is document.documentElement.clientHeight?
但是我如何获得相对于当前视口的鼠标位置,这是document.documentElement.clientHeight?
For example, if the browser window size has a 720 pixel height, I scroll down 3 pages and keep the mouse in the middle of the window, the position should be "360", not 1800 (720 x 3 - 720 / 2).
例如,如果浏览器窗口大小为 720 像素高度,我向下滚动 3 页并将鼠标保持在窗口中间,则位置应为“360”,而不是 1800 (720 x 3 - 720 / 2)。
回答by lostsource
Try using event.clientYthat should always return the correct value regardless of scrolling
尝试使用event.clientY它应该始终返回正确的值,而不管滚动
回答by Bergi
Use event.clientYto get the mouse positionrelative to the browser viewport (Compatibility table).
使用event.clientY来获取鼠标位置相对于浏览器窗口(兼容性表)。

