all files / popper/utils/ isFixed.js

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import getStyleComputedProperty from './getStyleComputedProperty';
import getParentNode from './getParentNode';
 
/**
 * Check if the given element is fixed or is inside a fixed parent
 * @method
 * @memberof Popper.Utils
 * @argument {Element} element
 * @argument {Element} customContainer
 * @returns {Boolean} answer to "isFixed?"
 */
export default function isFixed(element) {
    const nodeName = element.nodeName;
    if (nodeName === 'BODY' || nodeName === 'HTML') {
        return false;
    }
    if (getStyleComputedProperty(element, 'position') === 'fixed') {
        return true;
    }
    return isFixed(getParentNode(element));
}