14 lines
455 B
JavaScript
14 lines
455 B
JavaScript
export default function getScrollParent(node) {
|
|
const isElement = node instanceof HTMLElement;
|
|
const overflowY = isElement && window.getComputedStyle(node).overflowY;
|
|
const isScrollable = overflowY !== 'visible' && overflowY !== 'hidden';
|
|
|
|
if (!node) {
|
|
return null;
|
|
} else if (isScrollable && node.scrollHeight >= node.clientHeight) {
|
|
return node;
|
|
}
|
|
|
|
return getScrollParent(node.parentNode) || document.body;
|
|
}
|