Samuele E. Locatelli
21 lines
668 B
JavaScript
21 lines
668 B
JavaScript
/**
|
|
* Gets the scroll value of the given element in the given side (top and left)
|
|
* @method
|
|
* @memberof Popper.Utils
|
|
* @argument {Element} element
|
|
* @argument {String} side `top` or `left`
|
|
* @returns {number} amount of scrolled pixels
|
|
*/
|
|
export default function getScroll(element, side = 'top') {
|
|
const upperSide = side === 'top' ? 'scrollTop' : 'scrollLeft';
|
|
const nodeName = element.nodeName;
|
|
|
|
if (nodeName === 'BODY' || nodeName === 'HTML') {
|
|
const html = element.ownerDocument.documentElement;
|
|
const scrollingElement = element.ownerDocument.scrollingElement || html;
|
|
return scrollingElement[upperSide];
|
|
}
|
|
|
|
return element[upperSide];
|
|
}
|