VLEX/BPM-UI/node_modules/ngx-bootstrap/positioning/esm5/utils/getFixedPositionOffsetParent.js

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * Finds the first parent of an element that has a transformed property defined
 */
import { getStyleComputedProperty } from './getStyleComputedProperty';
import { isIE } from './isIE';
/**
 * @param {?} element
 * @return {?}
 */
export 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;
    }
    /** @type {?} */
    var el = element.parentElement;
    while (el && getStyleComputedProperty(el, 'transform') === 'none') {
        el = el.parentElement;
    }
    return el || document.documentElement;
}
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