4cd4fd28
 郭伟龙
feat: 初始化项目
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import getStyleComputedProperty from './getStyleComputedProperty';
import isIE from './isIE';
/**
* Finds the first parent of an element that has a transformed property defined
* @method
* @memberof Popper.Utils
* @argument {Element} element
* @returns {Element} first transformed parent or documentElement
*/
export default function getFixedPositionOffsetParent(element) {
// This check is needed to avoid errors in case one of the elements isn't defined for any reason
if (!element || !element.parentElement || isIE()) {
return document.documentElement;
}
let el = element.parentElement;
while (el && getStyleComputedProperty(el, 'transform') === 'none') {
el = el.parentElement;
}
return el || document.documentElement;
}
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