adui
Version:
<div> <img src="https://wxa.wxs.qq.com/mpweb/delivery/legacy/wxadtouch/upload/t1/od834zef_52939fc6.png" style="margin:40px 0 0 -8px; background-color: #fcfcfc; box-shadow: none;" /> </div>
18 lines (16 loc) • 2.76 kB
JavaScript
var preventOuterScroll = function preventOuterScroll(e) {
var saveThis = e.currentTarget,
delta = e.deltaY;
var scrollTop = saveThis.scrollTop,
scrollHeight = saveThis.scrollHeight;
var height = saveThis.clientHeight;
if (delta > 0 && scrollHeight - height - scrollTop <= delta) {
saveThis.scrollTop = scrollHeight;
e.preventDefault();
} else if (delta < 0 && scrollTop <= -1 * delta) {
saveThis.scrollTop = 0;
e.preventDefault();
}
};
export { preventOuterScroll };
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