per),this}function A(e){var t=e.ownerDocument;return t?t.defaultView:window}function M(e,t,o,i){var r='BODY'===e.nodeName,p=r?e.ownerDocument.defaultView:e;p.addEventListener(t,o,{passive:!0}),r||M(n(p.parentNode),t,o,i),i.push(p)}function F(e,t,o,i){o.updateBound=i,A(e).addEventListener('resize',o.updateBound,{passive:!0});var r=n(e);return M(r,'scroll',o.updateBound,o.scrollParents),o.scrollElement=r,o.eventsEnabled=!0,o}function I(){this.state.eventsEnabled||(this.state=F(this.reference,this....